МНОГОКАНАЛЬНЫЙ LIDAR-ФОРМИРОВАТЕЛЬ ОБЛУЧЕНИЯ

Изобретение относится к LIDAR-системам измерения с 3D-облаком точек. Сущность: в измерительной LIDAR-системе применяется интегральная схема (IC) многоканального, основанного на нитриде галлия (GaN) формирователя облучения. В одном аспекте IC выборочно соединяет каждый источник облучения, ассоциированный с каждым измерительным каналом, с источником электрической мощности, чтобы формировать измерительный импульс облучающего света. В одном аспекте каждый сигнал запуска импульса, ассоциированный с каждым измерительным каналом, принимается на отдельном узле IC. В другом аспекте дополнительные управляющие сигналы принимаются на раздельных узлах IC и передаются всем измерительным каналам. В другом аспекте IC многоканального, основанного на нитриде галлия (GaN) формирователя облучения включает в себя модуль регулирования мощности, который подает отрегулированное напряжение различным элементам каждого измерительного канала, только когда какой-либо сигнал запуска импульса находится в состоянии, которое ...

Способ противодействия преднамеренному воздействию на пилотов авиалайнеров лазерным излучением

Изобретение относится к области авиационной техники и может быть использовано для противодействия преднамеренному ослеплению пилотов лазерным излучением физическими лицами при выполнении снижения и посадки авиалайнеров. Способ противодействия преднамеренному воздействию на пилотов лазерным излучением предусматривает установку на летательном аппарате сферической оболочки, на поверхности которой располагают приемные датчики лазерного излучения. По показаниям датчиков определяют направление на источник помех лазерного излучения. В карданном подвесе монтируют бортовой источник лазерного излучения, который излучает лазерный луч в направлении на источник помех лазерного излучения по сигналу блока вычислителя при срабатывании приемных датчиков. Мощность бортового источника лазерного излучения выбирают из условия недопущения необратимого поражения органов зрения физических лиц, создающих помехи лазерного излучения. Обеспечивается противодействие физическим лицам, ослепляющим пилотов авиалайнеров ...

KÜHLKÖRPER- UND REINIGUNGSVORRICHTUNG

Ein Kühlkörper mit mindestens einem Fluidleitelement ist offenbart. Der Kühlkörper beinhaltet eine Wärmesammelfläche, eine Wärmeübertragungsfläche mit mindestens einer Wärmeabfuhrfläche und mindestens ein Fluidleitelement. Die Anordnung der Wärmesammelfläche in Wirkverbindung mit der Wärmequelle bewirkt eine Wärmeabfuhr von der Wärmequelle durch die mindestens eine Wärmeabfuhrfläche. Das mindestens eine Fluidleitelement lenkt ein Fluid von der Wärmeübertragungsfläche weg und zu einer Außenfläche der Wärmequelle hin.

Optoelektronischer Sensor und Verfahren zur Veränderung von Sensoreinstellungen

Es wird ein optoelektronischer Sensor (10) zur Erfassung von Objekten (12) längs eines Überwachungsstrahls (14), insbesondere Lichttaster oder Lichtschranke, mit einem Lichtempfänger (26) zur Umwandlung von längs des Überwachungsstrahls (14) empfangenem Empfangslicht (22) in ein Empfangssignal, mit einer Auswertungseinheit (28) zur Gewinnung von Informationen über Objekte (12) in dem Überwachungsstrahl (14) aus dem Empfangssignal und mit einer Parametriereinheit (32) zur Veränderung von Sensoreinstellungen durch eine Benutzereingabe angegeben. Dabei ist die Parametriereinheit (32) dafür ausgebildet, eine Benutzereingabe aus einer Modulation des Empfangssignals zu erkennen.

Moulding material with good mechanical and optical properties,

New moulding material comprising the following components: (A) 1-99 wt.% particulate microemulsion polymer having a glass transition temp. less than 0 deg C and a mean particle size less than 50 nm; (B) 1-99 wt.% at least partially crystalline polymer(s); (C) 0-50 wt.% polymer chosen from a particulate graft copolymer with a mean particle size of 60-10000 nm, thermoplastic polyurethane, thermoplastic elastomer or an acrylate-, diene-, ethylene propylene (diene)-(EPD(M)) or silicone rubber; (D) 0-50 wt.% polycarbonate; and (E) 0-50 wt.% filler fibres and/or particles.

Deformation location in optical fibres

An optical detection system for detecting the location P of changes in attenuation along an optical fibre, in which means 4, 5, 6 is provided for transmitting light signals simultaneously in opposite directions along an optical fibre 1. Signal detection means 2, 3 are provided at the respective ends of the optical fibre 1 for detecting signals received over the optical fibre 1. Processing means 7 is provided for determining the time relationship between any variations in output levels of the detected signals for the purpose of locating the position P of attenuation changes in the optical fibre. ...

Method for the prevention of eye damage when using high-power lasers

To prevent eye damage when using a high power laser in a spectral range transparent to the eye lens, e.g. for destroying military targets, a warning beam (I2) is generated in the visible or near-infrared range just before the main high power beam (I1) is generated. The warning beam causes the eyelids to close by reflex action, and eye damage by the main beam is therefore avoided. The main and warning beams may be generated from a single Nd-yag device, the warning beam being provided by doubling the operating frequency of the device. ...

Automatic measurement of dimensional data with a laser tracker

Distance measuring target

Automated object annotation using fused camera/lidar data points

Laser scanner and device for measuring an environment

Die Erfindung betrifft einen Laserscanner (4) zur Vermessung einer Umgebung (2), umfassend einen ersten Sendeempfänger (9) zum Senden und Empfangen eines ersten Lasermessstrahls (5"), eine erste Strahlablenkeinrichtung (16) zum Auffächern des ersten Lasermessstrahls (5") zu einem als Kegelmantel (K) geformten ersten Scanfächer (5), einen zweiten Sendeempfänger (10) zum Senden und Empfangen eines zweiten Lasermessstrahls (6"), und eine zweite Strahlablenkeinrichtung (17) zum Auffächern des zweiten Lasermessstrahls (6") zu einem in einer Ebene (E) liegenden zweiten Scanfächer (6), welche Ebene (E) im Wesentlichen parallel zur Kegelachse (A) des Kegelmantels (K) verläuft, wobei der erste Sendeempfänger (9) dafür ausgebildet ist, das Empfangen des ersten Lasermessstrahls (5") in jenen Bereichen (8) des ersten Scanfächers (5) zu unterdrücken, in denen die Ebene (E) den Kegelmantel (K) außerhalb eines vorgegebenen Mindestabstands (D) vom Laserscanner (4) schneidet.

DOOR CONTROL DEVICE

OPTO-ELECTRONIC SENSOR

OPTO-ELECTRONIC MEASURING PROCEDURE AND OPTO ELECTRONIC ONE MESSEINRIGHTUNG

LASER SPACER INVESTIGATION DEVICE

System and method to reduce DVE effect on LIDAR return

SYSTEM AND METHOD TO REDUCE DVE EFFECT ON LIDAR RETURN A LIDAR system for vehicle operation that can operate in degraded visual environments (DVE) is described. The LIDAR system may use a spatial light modulator to find the phase conjugate of the DVE being traversed by the laser beam and cancel out the backscatter from the DVE, which allows the detection of extremely small numbers of directly reflected photons reflected by a target surface. If the target is not detected, the LIDAR is iteratively scanned to its maximum available depth of focus until the target is acquired. The LIDAR system is especially useful for autonomous landing of VTOL aerial vehicles in locations where the target landing spot is approximately known but cannot be directly visualized due to DVE media, such as smoke, dust, fog, or the like. Sta rt Initialize System Scan for Target 302 Returns within Range r Yes DVE Selected? N +o Target No Attempt to Acquire 322 in Normal Mode 306 Yes Report Range to Target Acquired?

VEHICLE WITH MULTIPLE LIGHT DETECTION AND RANGING DEVICES (LIDARS)

A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.

IMPROVED LASER RANGEFINDER SENSOR

The specification discloses a pulsed time-of-flight laser range finding system used to obtain vehicle classification information. The sensor determines a distance range to portions of a vehicle traveling within a sensing zone of the sensor. A scanning mechanism made of a four facet cube, having reflective surfaces, is used to collimate and direct the laser toward traveling vehicles. A processing system processes the respective distance range data and angle range data for determining the three-dimensional shape of the vehicle.

Télémètre à rayons infra-rouges

Determination of coverage by infra-red tracking instrument - with measurement of visual range and water content of air

The optical visual range and the water content of the air are measured and these results, together with the assumed target data and sensitivity of the infra-red instrument, are used by an electronic computer to determine the coverage of the infra-red instrument. To determine the absolute water content of the air the relative water content and the air temperature are measured. An electrical resistance dependent on humidity can be used to determine the water content of the air. The coverage of the infra-red instrument is determined by atmospheric absorption and atmospheric dispersion.

Device for assisting in the integration of a laser scanner in a vehicle.

Die Erfindung betrifft eine Vorrichtung zur Unterstützung bei der Integration eines Laserscanners (4), der einen über einen Abtastwinkelbereich (6) geführten Abtastlaserstrahl (5) aussenden kann, in ein Fahrzeug (1), mit einem für den Laserscanner bestimmten Gehäuse (7), das zumindest ein Paar von Laserpointern (10) trägt, welche unabhängig vom Abtastlaserstrahl (5) einschaltbar sind und im eingeschalteten Zustand mit Zeigestrahlen (11) aus sichtbarem Licht den Abtastwinkelbereich (6) des Abtastlaserstrahls (5) markieren.

Integration of a laser scanner assistance device in a vehicle.

Die Erfindung betrifft eine Vorrichtung zur Unterstützung bei der Integration eines Laserscanners (4), der einen über einen Abtastwinkelbereich (6) geführten Abtastlaserstrahl (5) aussenden kann, in ein Fahrzeug (1), mit einem für den Laserscanner bestimmten Gehäuse (7), das zumindest ein Paar von Laserpointern (10) trägt, welche unabhängig vom Abtastlaserstrahl (5) einschaltbar sind und im eingeschalteten Zustand mit Zeigestrahlen (11) aus sichtbarem Licht den Abtastwinkelbereich (6) des Abtastlaserstrahls (5) markieren.

LASER RANGE FINDER AND AUTOMATIC CLEANING DEVICE

Laser beam control method, corresponding device, apparatus and computer program product

REFLECTIVE TARGET, IN PARTICULAR FOR MEASUREMENTS BY OPTICAL TELEMETRY

OPTICAL SENSOR REFLECTOMETRIQUE

L'invention concerne un capteur optique comprenant plusieurs canaux de sortie parallèles, qui comportent chacun un filtre de polarisation respectif, des moyens d'échantillonnage (4, 5, 6) et des moyens de combinaison (7, 8), où les filtres de polarisation ont tous des angles de polarisation différents, les moyens d'échantillonnage échantillonnent les signaux dans chacun des canaux après qu'ils sont passés dans les filtres de polarisation, et les moyens de combinaison sélectionnent les signaux passant dans au moins un des canaux de telle sorte que les signaux sélectionnés produisent un signal de sortie hétérodyne non-nul.

Assembled type gimbal

레이저 거리 센서의 측정 거리에 대해 추정된 거리 유형의 신뢰성을 평가하는 방법 및 이를 이용한 이동 로봇의 위치 추정 방법

... 본 발명은 레이저 거리 센서의 측정 거리에 대해 추정된 거리 유형의 신뢰성을 평가하는 방법 및 이를 이용한 이동 로봇의 위치 추정 방법에 관한 것이다. 본 발명에 따른 거리 유형의 신뢰성을 평가하는 방법은 (a) 현재 위치에 대한 추정 포즈에 기초하여 복수의 예비 샘플이 추출되는 단계와; (b) 각각의 상기 예비 샘플이 기 등록된 레퍼런스 거리 산출 알고리즘에 적용되어, 각각의 상기 예비 샘플에 대한 레퍼런스 거리 세트가 산출되는 단계-상기 레퍼런스 거리 세트는 복수의 거리 유형 각각에 대한 레퍼런스 거리로 구성됨-와; (c) 상기 레퍼런스 거리 세트를 구성하는 각각의 상기 레퍼런스 거리와 측정 거리 간의 거리 오차 중 가장 작은 값을 갖는 레퍼런스 거리에 대응하는 거리 유형이 해당 레퍼런스 거리 세트에 대한 거리 유형으로 추정되는 단계와; (d) 각각의 상기 레퍼런스 거리 세트에 대해 추정된 거리 유형 중 가장 많이 추정된 거리 유형이 상기 측정 거리의 추정 거리 유형으로 추정되는 단계와; (e) 상기 (c) 단계에서 각각의 상기 레퍼런스 거리 세트에 대해 추정된 거리 유형 중 상기 추정 거리 유형으로 추정된 회수가 반영된 제1 신뢰성 가중치와, 상기 측정 거리와 상기 (c) 단계에서 상기 추정 거리 유형으로 추정된 레퍼런스 거리 세트의 상기 추정 거리 유형에 해당하는 레퍼런스 거리 간의 편차가 반영된 제2 신뢰성 가중치가 산출되는 단계를 포함하는 것을 특징으로 한다.

차량 동역학의 특징화를 위한 레이저 다이오드 기반 다중 빔 레이저 스폿 이미징 시스템

... 본 발명은 차량 동역학의 특징화를 위한 레이저 다이오드 기반 다중 빔 레이저 스폿 이미징 시스템에 관한 것이다. 레이저 다이오드 기반, 바람직하게는 VCSEL 기반 레이저 이미징 시스템을 이용하여 차량 동역학을 특징화한다. 하나 이상의 레이저 빔이 노면(road surface)에 향해진다. CCD 또는 CMOS 카메라와 같은 이미징 매트릭스 센서를 포함하는 콤팩트 이미징 시스템은 개별 레이저 스폿들의 위치들 또는 간격들을 측정한다. 차량들의 적재 상태 및 차량들의 피치 및 롤 각은 레이저 스폿 위치들 또는 간격들의 변경을 분석함으로써 특징화될 수 있다.

LIDAR POINT CLOUD COMPRESSION

Using LIDAR technology, terabytes of data are generated which form massive point clouds. Such rich data is a blessing for signal processing and analysis but also is a blight, making computation, transmission, and storage prohibitive. The disclosed subject matter includes a technique to convert a point cloud into a form that is susceptible to wavelet transformation permitting compression that is nearly lossless.

OPTOELECTRONIC MEASURING METHOD AND AN OPTOELECTRONIC MEASURING DEVICE

During an optoelectronic measuring method, an emitting device sends a sequence of optical impulses during a measuring cycle. A receiving device is provided for receiving reflected signals from a target located in the beam path of the emitting device. Said receiving device amplifies received signals in a signal processing step. The signals are eventually converted and digitized, whereby the individual samples of a digitized received signal are filed in cells of an electronic memory and the samples of other digitized received signals are added in a cophasal manner in these memory cells or with a defined phase displacement with regard to the emitter impulse. The emitted impulse sequences are divided into a plurality of impulse packets or so called "bursts". These bursts are separated by impulse absorption. A received impulse assigned to a target is detected in an electronic computer by means of defined algorithms which are each from the discrete-time, digitized and added received signals of ...

Optical identification and monitoring system using pattern recognition for use with vehicles

A vehicle interior monitoring system to identify, locate and monitor occupants, including their parts, and other objects in the passenger compartment and objects outside of a motor vehicle, such as an automobile or truck, by illuminating the contents of the vehicle and objects outside of the vehicle with electromagnetic, and specifically infrared, radiation and using one or more lenses to focus images of the contents onto one or more arrays of charge coupled devices (CCD arrays). Outputs from the CCD arrays, are analyzed by appropriate computational means employing trained pattern recognition technologies, to classify, identify or locate the contents or external objects. In general, the information obtained by the identification and monitoring system is used to affect the operation of some other system in the vehicle. When system is installed in the passenger compartment of an automotive vehicle equipped with an airbag, the system determines the position of the vehicle occupant relative ...

Position adjustment assistance system for transportation machine

To advance a dump truck quickly and smoothly to a position where target loading work will be performed relative to an excavating machine, the dump truck is placed in loading target position relative to the excavating machine. Geographic position is detected from GPS satellites of a GPS receiver of the dump truck. The position and direction of the geographic position is transmitted to the excavating machine as a target position image. The target position image and an approach route leading to the position are displayed on a dump truck display when the truck thereafter approaches the position. The dump truck thereafter approaches the position, and the truck is driven so that a current position image advances along the approach route to the target position image, whereby the dump truck is placed in the set loading image target position.

SYSTEM AND METHOD FOR INCREMENTAL DATA PROCESSING

Systems and methods are provided for segmenting a data frame to be acquired into a number of incremental data of equal data length. A first incremental data of the data frame can be acquired from one or more sensors. The first incremental data of the data frame can be processed while a next incremental data of the data frame is being acquired from the one or more sensors. The acquiring and processing of incremental data of the data frame can continue until a last incremental data of the data frame is acquired and processed. Processed incremental data can be outputted as a processed data frame.

METHOD AND DEVICE FOR OPTIMIZING THE USE OF EMITTER AND DETECTOR IN AN ACTIVE REMOTE SENSING APPLICATION

The invention relates to a method of an optimal arrangement in time of a laser emitter and a detector for a remote sensing application, comprising: —setting a target time unit integration time tp; —translating said time unit integration time into a reduced time τp and its corresponding power increase factor η−1; —activating both the laser emitter, with a power output corrected by η−1, and the detector for a duration of τp; —deactivating the emitter and detector after duration τp; —keep emitter and detector off for the subsequent duration toff=tp−τp.The invention further relates to a device implementing said method.

Method and apparatus for deploying airbags

Apparatus and method for deploying airbags in a vehicle in which a first inflatable airbag protects an occupant in a seating location during a crash and a second inflatable airbag moves the occupant in the seating location away from an interior surface of the vehicle upon inflation. A crash sensor system determines that a crash involving the vehicle will occur or is occurring and initiates inflation of the first and second airbags. The second airbag may be inflated prior to inflation of the first airbag such that inflation of the second airbag causes the occupant to be moved away from the interior surface of the vehicle and into a better position for deployment of the first airbag. In one exemplary embodiment, the first airbag is a side curtain airbag and the second airbag is arranged in a door of the vehicle to move the occupant away from the door.

СПОСОБ ЗАЩИТЫ ОПТИКО-ЭЛЕКТРОННЫХ СРЕДСТВ ОТ ЛАЗЕРНЫХ КОМПЛЕКСОВ С ИСПОЛЬЗОВАНИЕМ ЛОЖНЫХ ОПТИЧЕСКИХ ЦЕЛЕЙ

Изобретение относится к области защиты оптико-электронных средств (ОЭС) от мощных лазерных излучений. Техническим результатом является повышение эффективности защиты ОЭС от поражения оптическим излучением с использованием ложных оптических целей (ЛОЦ). Заявленный способ заключается в следующем. Используют К+М подвижных ЛОЦ относительно имитируемого ОЭС. С использованием априорных данных о параметрах комплекса лазерного воздействия, заданных параметрах ОЭС и текущих параметрах метеообстановки в районе применения комплекса лазерного воздействия и ОЭС рассчитывают текущее минимальное значение расстояния установки ЛОЦ RHП (L) относительно ОЭС, за пределами которого поток падающего мощного лазерного излучения комплекса лазерного воздействия не поразит ОЭС при наведении поражающего канала комплекса лазерного воздействия на ЛОЦ на текущей дальности L применения комплекса лазерного воздействия по ОЭС, и текущее минимальное значение расстояния установки ЛОЦ RP(L) относительно ОЭС, за пределами которого ...

SELBSTENTEISENDER SENSOR

Ein Computer ist programmiert, eine elektrische Eigenschaft zu modifizieren, um eine Trübung eines Sensorabdeckungsfensters einzustellen. Der Computer ist programmiert, eine Anregungsquelle zu betätigen, um elektromagnetische Strahlen in Richtung des Abdeckungsfensters abzustrahlen.

Optical distance measuring apparatus for vehicles

A device for optical distance measurement for vehicles, especially between two vehicles, which device consists of a transmission and receiver unit which is preferably in the form of rows and is installed transversely with respect to the roadway direction, the emitted radiation from a laser light source operating in accordance with the pulse propagation-time method depending on the energy scattered back and received and being used for evaluation, characterised in that a semiconductor laser, especially a diode laser having a wavelength approximately in the range between 0.8 mu m and 1.0 mu m, is included in the unit as the transmitter, and in that its transmission power is auto-adaptively matched by a signal evaluation unit to the environmental conditions, especially to the visual conditions on the one hand and to eye safety on the other hand.

Fahrerassistenzsystem für ein Kraftfahrzeug, Kraftfahrzeug sowie Verfahren

Die Erfindung betrifft ein Fahrerassistenzsystem (2) für ein Kraftfahrzeug (1) zum Überwachen eines Umgebungsbereiches (3) des Kraftfahrzeugs (1) mit einer fahrzeugseitigen optischen Detektionseinrichtung (4) zum Aussenden eines optischen Signals in den Umgebungsbereich (3) und zum Empfangen des in dem Umgebungsbereich (3) reflektierten Signals und mit einer Steuereinrichtung (7) zum Betreiben der Detektionseinrichtung (4) in zumindest zwei Betriebsmodi (8, 9), wobei die Steuereinrichtung (7) dazu ausgelegt ist, die Detektionseinrichtung (4) in einem ersten Betriebsmodus (8) mit einem ersten Auflösungsvermögen (10) zum Erfassen des Umgebungsbereiches (3) mit einer ersten Auflösung (13) zu betreiben und die Detektionseinrichtung (4) in einem zweiten Betriebsmodus (9) mit einem im Vergleich zum ersten Auflösungsvermögen (10) höheren zweiten Auflösungsvermögen (11) zum Erfassen des Umgebungsbereiches (3) mit einer im Vergleich zur ersten Auflösung (13) höheren zweiten Auflösung (16) zu betreiben ...

Automatic measurement of dimensional data with a laser tracker

Visual recognition system for ladar sensors

A visual recognition system is disclosed for detecting a target within a scene. A LADAR system and method is employed for scanning laser light signals across a scene having a target to be characterized. Laser light reflected from the target is detected and processed into a three-dimensional image. The three-dimensional image is segmented to separate the target from the overall scene. Substantially, only the segmented target data is either displayed locally or transmitted via a narrow bandwidth transmission medium to a remote site for display. The invention finds particular application in military situations where enemy armor is detected and the segmented version of the armor is transmitted via SINCGARS. The segmentation (target selection) process is described in detail.

OPTICAL DETECTION SYSTEMS

Target apparatus and method

Camera-to-lidar calibration and validation

OPTICAL DISTANCE SENSOR

Vorrichtung zur Unterstützung bei der Integration eines Laserscanners in ein Fahrzeug

Die Erfindung betrifft eine Vorrichtung zur Unterstützung bei der Integration eines Laserscanners (4), der einen über einen Abtastwinkelbereich (6) geführten Abtastlaserstrahl (5) aussenden kann, in ein Fahrzeug (1), mit einem für den Laserscanner bestimmten Gehäuse (7), das zumindest ein Paar von Laserpointern (10) trägt, welche unabhängig vom Abtastlaserstrahl (5) einschaltbar sind und im eingeschalteten Zustand mit Zeigestrahlen (11) aus sichtbarem Licht den Abtastwinkelbereich (6) des Abtastlaserstrahls (5) markieren.

Laser scanner and device for measuring an environment

Die Erfindung betrifft einen Laserscanner (4) zur Vermessung einer Umgebung (2), umfassend einen ersten Sendeempfänger (9) zum Senden und Empfangen eines ersten Lasermessstrahls (5"), eine erste Strahlablenkeinrichtung (16) zum Auffächern des ersten Lasermessstrahls (5") zu einem als Kegelmantel (K) geformten ersten Scanfächer (5), einen zweiten Sendeempfänger (10) zum Senden und Empfangen eines zweiten Lasermessstrahls (6"), und eine zweite Strahlablenkeinrichtung (17) zum Auffächern des zweiten Lasermessstrahls (6") zu einem in einer Ebene (E) liegenden zweiten Scanfächer (6), welche Ebene (E) im Wesentlichen parallel zur Kegelachse (A) des Kegelmantels (K) verläuft, wobei der erste Sendeempfänger (9) dafür ausgebildet ist, das Empfangen des ersten Lasermessstrahls (5") in jenen Bereichen (8) des ersten Scanfächers (5) zu unterdrücken, in denen die Ebene (E) den Kegelmantel (K) außerhalb eines vorgegebenen Mindestabstands (D) vom Laserscanner (4) schneidet.

PLANT FOR THE IMPROVEMENT OF NAVIGATION AND MONITORING WITH POOR VISIBILITY

Microsatellite system for high-volume orbital telemetry

Vehicle with multiple light detection and ranging devices (LIDARS)

A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.

Active seeker head system

Disclosed herein is an active seeker system for detection and/or tracking of moving targets. The system includes: an illumination module generating an illumination beam to be output from the system; an optical assembly for shaping the solid angle of the field of view (FOV) of the output beam; an optical path scanning module adapted for angularly deflecting the output optical path of the output beam about a scan axis to perform one or more scanning cycles; and an imaging module adapted to image light in the spectral regime of the beam, arriving from a certain field of view about the output optical path of the beam. In some cases, the solid angle of the output light beam is shaped such that it has an elongated FOV cross-section extending along a certain lateral of the beam; and the output optical path is angularly deflected in a direction travers to the longer axis of the elongated FOV of beam so as to swipe the elongated FOV of the beam to cover a desired field of regard (FOR) with one dimensional ...

ACTIVE SEEKER HEAD SYSTEM

Disclosed herein is an active seeker system for detection and/or tracking of moving targets. The system includes: an illumination module generating an illumination beam to be output from the system; an optical assembly for shaping the solid angle of the field of view (FOV) of the output beam; an optical path scanning module adapted for angularly deflecting the output optical path of the output beam about a scan axis to perform one or more scanning cycles; and an imaging module adapted to image light in the spectral regime of the beam, arriving from a certain field of view about the output optical path of the beam. In some cases, the solid angle of the output light beam is shaped such that it has an elongated FOV cross-section extending along a certain lateral of the beam; and the output optical path is angularly deflected in a direction travers to the longer axis of the elongated FOV of beam so as to swipe the elongated FOV of the beam to cover a desired field of regard (FOR) with one dimensional ...

Target apparatus and method

Device of detection without contact of glass leafs moving

L'invention est relative à un dispositif de détection sans contact de feuilles de verre en mouvement dans des installations verrières, utilisant un barrage photoélectrique à réflexion comportant un émetteur et un récepteur (3) de faisceaux lumineux (4). Selon l'invention, les faisceaux lumineux cheminent dans un canal (6) en matériau résistant à la chaleur dont les parois délimitent un milieu isotherme homogène, ledit canal émergeant au voisinage de la feuille (11) à détecter.

Method for obtaining and displaying information about objects in a vehicular blind spot

Method for obtaining information about objects in an environment around a vehicle in which infrared light is emitted into a portion of the environment and received and the distance between the vehicle and objects from which the infrared light is reflected is measured. An identification of each object from which light is reflected is determined and a three-dimensional representation of the portion of the environment is created based on the measured distance and the determined identification of the object. Icons representative of the objects and their position relative to the vehicle are displayed on a display visible to the driver based on the three-dimensional representation. Additionally or alternatively to the display of icons, a vehicular system can be controlled or adjusted based on the relative position and optionally velocity of the vehicle and objects in the environment around the vehicle to avoid collisions.

Police radar/laser detector with integral vehicle parameter display using a vehicle interface

Calibration of an acceleration detector is initiated by a user depressable button such as a button indicating a vehicle is at rest and/or by the detector reading an OBDII vehicle communication protocol to determine the condition of the vehicle. Calibration permits more accurate measurements in a vehicle performance test.

Laser distance finding apparatus

A laser range finding apparatus 10 comprises a pulsed laser 12, a light deflecting device 14, photo-receiver arrangement 16 and a reference object 18 arranged at a defined spacing from the light deflecting device 14. In this respect the reference object 18 has at least one triple element consisting of three mirror surfaces arranged at an angle of 90 DEG to one another.

AREA SENSOR AND EXTERNAL STORAGE DEVICE

An area sensor includes: a sensor unit that emits measurement light with which a monitoring area is scanned, and detects reflected light of the measurement light; and a system controller that controls the sensor unit to output sensor information to an external device, the sensor information including object information in the monitoring area obtained based on an output signal from the sensor unit, the system controller including: a memory interface to which a portable external storage device is connectable, a sensor controller that controls the sensor unit, and a memory controller that accesses the external storage device; and a start processing unit which operates the memory controller in priority to the system controller, when the external storage device is connected to the memory interface.

Verfahren zum Synchronisieren einer Beleuchtungseinrichtung, mindestens eines NIR-Sensors und einer Lidar-Einrichtung, Steuereinrichtung zur Durchführung eines solchen Verfahrens, Erfassungsvorrichtung mit einer solchen Steuereinrichtung und Kraftfahrzeug mit einer solchen Erfassungsvorrichtung

Die Erfindung betrifft ein Verfahren zum Synchronisieren einer Beleuchtungseinrichtung (5), mindestens eines NIR-Sensors (7) und einer Lidar-Einrichtung (9), wobei- der Beleuchtungseinrichtung (5) ein Beleuchtungs-Frustum (13) zugeordnet ist, wobei- dem mindestens einen NIR-Sensor (7) ein NIR-Beobachtungsbereich (15) zugeordnet ist, wobei- ein Teilbereich des NIR-Beobachtungsbereichs (15) als Auswerte-Bereich (17) ausgewählt wird, wobei- der Lidar Einrichtung (9) ein Lidar-Beobachtungsbereich (19) zugeordnet ist, wobei- sich das Beleuchtungs-Frustum (13), der NIR-Beobachtungsbereichs (15) und der Lidar-Beobachtungsbereichs (19) zumindest teilweise überlappen, wobei- mittels des mindestens einen NIR-Sensors (7) eine NIR-Aufnahme mit rollierendem Verschluss erstellt wird, wobei- die Beleuchtungseinrichtung (5) nur dann eingeschaltet wird, wenn mittels des NIR-Sensors (7) der Auswerte-Bereich (17) aufgenommen wird, wobei der Auswerte-Bereich (17) mittels der Lidar-Einrichtung (9) nur dann ...

ANLAGE ZUR VERBESSERUNG VON NAVIGATION UND ÜBERWACHUNG BEI SCHLECHTER SICHT

Electronic distance finder for rescue units

Target apparatus and method

A laser target which comprises a cube corner retroreflector, at least partially embedded within a body; a spherical contact element, rigidly fixed to the body; an identifying element on the body, either a bar code or a RFID tag (Radio Frequency Identification), configured to store the sphere radius of the spherical contact element. In use the spherical contact element is placed on a workpiece surface, the retro-reflector is illuminated by a first light source and a measurement is made from the light source to the retroreflector, the measurement including a distance, a set of two angles, based on the reflected light. The identifying information is read by a bar code reader, RFID reader or a camera. The position of the workpiece surface is calculated based on the distance, two angles and the identifying information.

Multi-pixel coherent LIDAR imaging

Multi-pixel coherent LIDAR imaging system 10 comprises a lens 24 for transmitting single-channel optical measurement signals 22a to different positions in a scene 72, the signals 22a have wavelengths arranged in corresponding wavelength channels. Optical return signals 74 are reflected from positions in the scene 72. A multiplexer 22 wavelength-multiplexes the return signals 74 into a multi-channel optical return signal 76. The return signal 76 and an optical local oscillator (LO) signal 68 are combined 26 to form signals 80a, 80b. System 10 includes wavelength-demultiplexers 28a, 28b and a photodetector 30. System 10 defines two interferometric optical paths: (i) a measurement arm extending from the measurement signal 66 output of a splitter 16 to the return signal 76 input of the combiner 26 via an object at a corresponding position in the scene 72; and (ii) a reference arm extending from the LO signal 68 output of the splitter 16 to the LO signal 68 input of the combiner 26. Controller ...

A control and switch device for an inner light path of a laser distance meter

A control and switch device for an inner light path of a laser distance meter includes: a generating device for emitting a polarized light (laser head) 10; a liquid crystal box 12 for deflecting the polarized light emitted from the generating device; a transparent medium (eg.a polarized beam splitter) 13 positioned near the Brewster's angle formed by an emergent light emitted from the liquid crystal box; and a polarizer 14 positioned in the direction of an emergent light emitted from the transparent medium. The arrangement is provided for calibration of the inner light path of the laser distance meter.

Multi-pixel coherent lidar imaging

Target apparatus and method

A laser target 800 which comprises a body 802, a contact element with a spherical region, a retro-reflector 804, a transmitter 830 and a temperature sensor 832; wherein the temperature sensor 832 measures the air temperature and sends it to the transmitter 830. The contact element, retroreflector 804, transmitter 830 and temperature sensor 832 are coupled to the body 802. The temperature sensor 832 may be a thermistor, RTD or thermocouple. The temperature sensor 832 may be disposed in a protector member, which is coupled to the body 802 and may also include an open end, perforations or an insulation member between the temperature sensor 832 and the body 802. The temperature sensor 832 may be coupled to the body 802 via an interface member 820. The air temperature may be used to correct for thermal expansion coefficients of the retroreflector 804 and the body 802, or for the change in refractive index of the air.

Control and switch device for inner light path of laser distance meter

Target apparatus and method

Target apparatus and method

Object detection using radar and LiDAR fusion

Methods for object detection using radar and lidar fusion comprising, obtaining a first point cloud captured by a LIDAR sensor 202b, obtaining a second point cloud captured by a RADAR sensor 202c, transforming the first and second point clouds to a vehicle centric reference frame and generating first and second set of clusters of points within each point clouds. Generating a third set of clusters based on associated points in the first and second clusters, the generating process involving features obtained from the LIDAR and RADAR results and combining features to create fused LIDAR/RADAR features. The fused LIDAR.RADAR features being used to generate an object label, a bounding box and a velocity for each cluster in the third set of clusters. The process involving using a machine learning model.

TÜRÜBERWACHUNGSEINRICHTUNG

Electronic device and method for monitoring a scene around a motor vehicle, related motor vehicle, transport system and computer program

Electronic device and method for monitoring a scene around a motor vehicle, related motor vehicle, transport system and computer program This electronic monitoring device for monitoring a scene around a motor vehicle is designed to be embedded on board the motor vehicle or to be installed along the public road network. It is capable of being connected to a primary sensor and to at least one secondary sensor, the primary sensor being an image sensor and each secondary sensor being distinct and separate from the primary sensor. This device comprises a first acquisition module for acquiring at least one image of the scene, from the primary sensor; a second acquisition module for acquiring a set of one or more measurement point(s) relating to the scene, from the at least one secondary sensor; a computation module for computing an enriched image of the scene, by superimposing on to the acquired image a representation of an additional information item dependent on the set of one or more point ...

TURBINE FLUID VELOCITY FIELD MEASUREMENT

A method of three-dimensional Doppler velocimetry applicable to turbines such as wind turbines achieves improved velocimetry by use of various possible convergent beam geometries and employing beam sources mounted on the turbine such as on a wind turbine nacelle, rotor hub or rotor blades.

LIDAR POINT CLOUD COMPRESSION

Using LIDAR technology, terabytes of data are generated which form massive point clouds. Such rich data is a blessing for signal processing and analysis but also is a blight, making computation, transmission, and storage prohibitive. The disclosed subject matter includes a technique to convert a point cloud into a form that is susceptible to wavelet transformation permitting compression that is nearly lossless.

Method for avoiding ocular injuries when using high power lasers.

Target rétroréflectrice for laser telemetry

Une cible rétroréflectrice pour télémétrie laser comporte au moins un rétroréflecteur en coin de cube creux comportant trois surfaces réfléchissantes (1, 2, 3) sensiblement planes et perpendiculaires l'une à l'autre et se coupant en trois arêtes sensiblement orthogonales convergeant en un sommet (S), à ce rétroréflecteur en coin de cube étant associé une normale géométrique faisant un même angle avec chacune desdites arêtes, cette cible comportant un point de référence (O) sensiblement situé sur cette normale à l'opposé des surfaces réfléchissantes à une distance e.2Root3 du sommet (S), où e est la distance de ce point de référence à chacune desdites surfaces, cette cible étant caractérisée en ce qu'elle comporte, en regard de chaque surface réfléchissante, une lame à faces parallèles (E1, E2, E3), transparente au rayonnement lumineux à rétroréfléchir, constituée en un matériau d'indice de réfraction connu n, les lames associées (E1, E2, E3, CV) audit rétroréflecteur ayant une même épaisseur ...

A POWER SUPPLY DEVICE FOR SUPPLYING ELECTRIC POWER TO A ROTATING BODY

LIDAR SYSTEM

According to an embodiment of the present invention, a light detection and ranging system (LIDAR system) includes: a housing which includes at least four openings placed on the surface; a laser which is placed inside the housing and emits light; at least four optical fibers which receive the light emitted by the laser, delivers the light to areas corresponding to at least three openings, and radiates light in different directions to the outside of the housing through the openings; a detection unit which receives light flowing into the housing after reflection outside and converts the light into an electric signal; and a control unit which controls the laser and processes the signal obtained by the detection unit. COPYRIGHT KIPO 2016 ...

SENSING/EMITTING APPARATUS, SYSTEM AND METHOD

A number of apparatuses are provided, for sensing and/or emitting energy along one or more desired apparatus line of sights (LOS) with respect to the respective apparatus. In at least one embodiment, the apparatus includes an assembly that is rotatably mounted on a base with respect to a switching axis. The assembly has two or more sensing/emitting units, each having a respective sensing/emitting unit line of sight0 (ULOS). Each sensing/emitting unit has an operative state, wherein the respective unit ULOS is pointed along a LOS of the apparatus for sensing and/or emitting energy along the LOS, and a corresponding inoperative state, where the respective unit ULOS is pointed along a direction different from this LOS. A switching mechanism enables witching between the sensing/emitting units to selectively bring a desiredIS sensing/emitting unit exclusively into its respective operative state while concurrently bringing a remainder of the sensing/emitting units each to a respective non-operative ...

Volumetric error compensation system with laser tracker and active target

A volumetric error compensation measurement system and method are disclosed wherein a laser tracker tracks an active target as the reference point. The active target has an optical retroreflector mounted at the center of two motorized gimbals to provide full 360 degree azimuth rotation of the retroreflector. A position sensitive detector is placed behind an aperture provided at the apex of the retroreflector to detect the relative orientation between the tracker laser beam and the retroreflector by measuring a small portion of the laser beam transmitted through the aperture. The detector's output is used as the feedback for the servo motors to drive the gimbals to maintain the retroreflector facing the tracker laser beam at all times. The gimbals are designed and the position of the retroreflector controlled such that the laser tracker always tracks to a pre-defined single point in the active target, which does not move in space when the gimbals and/or the retroreflector makes pure rotations ...

Method and device for signal period stretch and ultra-fast serial-to-parallel/parallel-to-serial conversion

Disclosed are a method and a device for signal period stretch and ultra-fast serial-to-parallel/parallel-to-serial conversion, which relate to the technical field of analysis and measurement control. The method is to change a propagation velocity of a target signal or displacement-reflecting the target signal, so as to extend or compress the period of the signal. Displacement-reflection is to generate a Doppler shift through interaction of the displacement of a reflecting plate with the target signal, so as to achieve period stretch; for a signal transmitted through a medium, the propagation velocity of the target signal is changed by changing the property of the medium, so as to achieve period stretch; for a signal ascribed to an electron flow, the movement velocity of the electron beam is changed through a varying acceleration field, so as to achieve period stretch. A target signal condensing/diffusing and collimating lens, a synchronous signal controller and a plurality of period stretch ...

SENSING/EMITTING APPARATUS, SYSTEM AND METHOD

Determining distance between two measuring locations

The method determines the distance (5) between two measuring locations (A,B). Pulses are sent from one of the measurement points (A) to the other (B). The received pulses are then sent back from the receiving location (B) by a reflecting object or device (9). The reflected pluses are received by a receiver (6,7). By analysis of the transmitted and received pulses, the distance (5) between the two locations (A,B) is deduced. In an excitation phase, by means of a measuring device (46) at one measuring location (A), first an exciting pulse from a generator (14) is fed to the input of the transmitter (2,3) and is sent out from the transmitter (2,3) as a carrier frequency measurement pulse. The measurement pulse reflected by the reflector (9) and received by the receiver (6,7) is then fed to the transmitter (2,3) and sent out from it. The frequency of the pulse cycle of received and transmitted pulses is measured by a frequency measurer (16). The measured frequency is indicative of the distance ...

Automatische Messung von Dimensionsdaten mit einem Lasertracker

Visual recognition system for ladar sensors

Method for the prevention of eye damage when using high-power lasers

Target apparatus and method

A laser target 800 comprising a retroreflector 804, body 802, transmitter 830 and actuator 826; wherein the actuator 826 is configured to trigger an electromagnetic signal to be emitted from the transmitter 830; and wherein the body 802 has a spherical exterior portion, contains a cavity sized to hold the retroreflector 804, the cavity being open to the exterior of the body 802 and having at least one surface opposite the opening, the retroreflector 804 being at least partially disposed in the cavity and; the retroreflector 804 and the least one surface define a space in between. The actuator may be a button 826 and there may be a second actuator 826. The target may further comprise a temperature sensor 832 configured to measure the air temperature and send the air temperature to the transmitter 830.

Automated object annotation using fused camera/LiDAR data points

A computer system and techniques for automatically annotating objects in map data used for navigating an autonomous vehicle 100. The process comprising using a Lidar device to obtain data points relating to objects 191, 192, 193 surrounding a vehicle and projecting the data points onto image data. Detecting a target object in the image data and extracting the associated subset of Lidar data associated with the object. If the data extracted satisfies criteria, registering the object in map data. A vehicle control circuit using the map data to control a vehicle. The process of obtaining lidar data points preferably continues while navigating the vehicle 100 in the environment 190. The obtaining of the lidar data points may also include obtaining pose data of the vehicle and associating the lidar data with the pose data.

Wind Turbine Nacelle Based Doppler Velocimetry Method and Apparatus

Improved laser rangefinder sensor

TÜRÜBERWACHUNGSEINRICHTUNG

Vorrichtung zur Unterstützung bei der Integration eines Laserscanners in ein Fahrzeug

Die Erfindung betrifft eine Vorrichtung zur Unterstützung bei der Integration eines Laserscanners (4), der einen über einen Abtastwinkelbereich (6) geführten Abtastlaserstrahl (5) aussenden kann, in ein Fahrzeug (1), mit einem für den Laserscanner bestimmten Gehäuse (7), das zumindest ein Paar von Laserpointern (10) trägt, welche unabhängig vom Abtastlaserstrahl (5) einschaltbar sind und im eingeschalteten Zustand mit Zeigestrahlen (11) aus sichtbarem Licht den Abtastwinkelbereich (6) des Abtastlaserstrahls (5) markieren.

Device for measuring distance

Electro-optical distance measuring device with a gesture-based measurement trigger that functions without contacting the measuring device

The invention relates to an electro-optical distance measuring device for measuring distances in a contactless manner, comprising at least one laser distance-measuring module, which has a laser source for emitting an optical measuring light beam in the direction of an object and which has a receiver for detecting reflected portions of the optical measuring light beam, and comprising an analyzing and control unit for determining a distance on the basis of the received portions of the optical measuring light beam. According to the invention, criteria are defined and stored which characterize a determined gesture for triggering the distance measurement, said gesture being carried out by a user using a test body that crosses the measuring light beam in an encoded manner. Additionally, the analyzing and control unit is designed to carry out a measurement-triggering gesture mode in which reflected portions of the optical measuring light beam are continuously detected automatically and the continuously ...

LIDAR POINT CLOUD COMPRESSION

Using LIDAR technology, terabytes of data are generated which form massive point clouds. Such rich data is a blessing for signal processing and analysis but also is a blight, making computation, transmission, and storage prohibitive. The disclosed subject matter includes a technique to convert a point cloud into a form that is susceptible to wavelet transformation permitting compression that is nearly lossless.

SYSTEM FOR ENHANCING NAVIGATION AND SURVEILLANCE IN LOW VISIBILITY CONDITIONS

SYSTEM FOR ENHANCING NAVIGATION AND SURVEILLANCE IN LOW VISIBILITY CONDITIONS

A system for enhancing navigation or surveillance in low visibility conditions is realized by employing one or more ultraviolet radiation sources, a receiver which is capable of producing output signals from which a two dimensional image of the received radiation can be constructed, and a display device for displaying such image. In one preferred embodiment the ultraviolet radiation source is co-positioned with a critical marker such as a runway beacon or hazard beacon. The ultraviolet radiation emanates from the source, preferably modulated to form a repetitive, characteristic signal, propagates through the low visibility atmosphere, and received by the ultraviolet imaging receiver. In another preferred embodiment, an ultraviolet radiation source is placed at or near the ultraviolet imaging receiver, that is, onboard the same vehicle or at the same fixed location. One-or more reflectors are co-positioned with the critical markers. The reflector reflects or redirect an ultraviolet radiation ...

Optical Distance-Measuring Device

An optical distance-measuring device includes a light source and an interferometer unit having a measuring retroreflector, a stationary reference retroreflector, a beam-splitter element, a beam-recombiner unit and a detection unit. The beam of rays emitted by the light source is able to swivel about the center of the reference retroreflector. The beam of rays arriving from the light source is split via the beam-splitter element into at least one measuring beam of rays and one reference beam of rays. The at least one measuring beam of rays propagates in the direction of the measuring retroreflector, and the reference beam of rays propagates collinearly with respect to the measuring beam of rays in the direction of the reference retroreflector. The measuring beam of rays is reflected back by the measuring retroreflector and the reference beam of rays is reflected back by the reference retroreflector in the direction of the beam-recombiner unit, the measuring beam of rays traveling symmetrically relative to the reference retroreflector prior to and after reflection at the measuring retroreflector. The beam-recombiner unit brings the measuring beam of rays and the reference beam of rays to interference. Distance-dependent interference signals are ascertainable via the detection unit.

Оптико-электронный модуль с защитой фотоприёмного тракта от воздействия лазерного излучения

Полезная модель относится к области оптического приборостроения, в частности к элементам защиты самих оптико-электронных приборов от воздействия лоцирующего лазерного излучения.Оптико-электронный модуль, содержит общее входное окно, видеокамеру с объективом, фотоприемной матрицей и блоком формирования изображения, лазерный дальномер с объективом, фотоприемником и блоком управления лазером, синхрогенератор, первый выход которого подключен к входу блока формирования изображения, а второй выход подключен к входу блока управления лазером.Технический результат заключается в повышении защиты фотоприемного тракта видеокамеры при ее совместной работе с лазерным дальномером как от внутриприборных засветок, так и от излучения, отраженного от объектов, находящихся в непосредственной близости от устройства. Другим техническим результатом является упрощение конструкции устройства. 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 169 946 U1 (51) МПК G02F 1/01 (2006.01) G02B 23/02 (2006.01) G01C 3/08 (2006.01) G01S 7/483 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016100575, 11.01.2016 (24) Дата начала отсчета срока действия патента: 11.01.2016 07.04.2017 Приоритет(ы): (22) Дата подачи заявки: 11.01.2016 Адрес для переписки: 194044, Санкт-Петербург, ул. Чугунная, 14, АО "ГИРООПТИКА", генеральному директору И.В. Поповой (73) Патентообладатель(и): Российская Федерация, от имени которой выступает Министерство Обороны Российской Федерации (RU) (56) Список документов, цитированных в отчете о поиске: RU 2398252 C2 27.08.2010;SU (57) Формула полезной модели Оптико-электронный модуль, содержащий входное окно, корпус, в котором размещены: видеокамера, включающая телевизионный объектив, фотоприёмную матрицу и блок формирования изображения, лазерный дальномер, включающий объектив, плоское зеркало с осевым отверстием, фотоприемник и блок управления лазером, отличающийся тем, что введён синхрогенератор ...

Optical Receiver Lens and Optical Distance Measuring Device

An optical receiver lens has a three-dimensional lens surface, for receiving the laser radiation of a laser distance measuring device, said laser radiation being reflected at an object, wherein the receiver lens can be described in a three-dimensional coordinate system having three axes x, y, z arranged at right angles with respect to one another and wherein the z-axis coincides with the optical axis of the receiver lens. At least one non-spherical area section of the lens surface can be described by addition of a first area, the flexure of which along the z-axis is a first function (f 1 ) of x and y, in particular of (I) and a second area, the flexure of which along the z-axis is a second function (f 2 ) of x and not of y. A distance measuring device is also described.

Laser scanner or laser tracker having a projector

A laser scanner or a laser tracker includes a light source that emits a light beam within an environment, and a data capture component that captures the light beam reflected back to the laser scanner or tracker from the environment. The laser scanner or tracker also includes a projector integrated within a body of the laser scanner or tracker or mounted to the body of the laser scanner or tracker at a predetermined location, the projector being operable to project visible information onto an object located within the environment, the projected visible information being indicative of images, data or information, the projected visible information being at least one of design intent information, information acquired by the laser scanner or tracker, or guidance to an operator.

Depth sensing apparatus and method

A depth sensing apparatus is provided. The depth sensing apparatus may reset, to a reference voltage value, a voltage of each of a first floating diffusion node and a second floating diffusion node of a sensor pixel for a first time period. For a second time period, the depth sensing apparatus may control the first floating diffusion node to store a voltage of a photodiode in a first phase interval, and may control the second floating diffusion node to store the voltage of the photodiode in a second phase interval. The depth sensing apparatus may calculate a difference between the voltage of the first floating diffusion node and the voltage of the second floating diffusion node for a third time period.

Laser distance measurement apparatus

A laser-radar distance measurement apparatus for measuring the distance between two arbitrary points on a measurement target in a non-contact fashion has a light emitter, a light receiver, a scanner, and a calculation controller. The light emitter emits laser light. The scanner deflects the laser light from the light emitter to irradiate with the laser light the two arbitrary points on the measurement target one after the other, and performs one-dimensional scanning along a straight line including the two arbitrary points. The light receiver receives the laser light reflected from the two arbitrary points to output signals respectively. The calculation controller calculates the distance between the two arbitrary points based on the signals output from the light receiver and operation information on the scanner.

Ceramic Optical System Support

An optical system support, especially for an optical measuring device, includes a base on which a mechanism for fixing an electro-optical transceiver system is provided. The optical system support is a ceramic optical system support.

Three-dimensional information presentation device

Three-dimensional information is presented directly on the surface of a target three-dimensional object without using a display device such as a display monitor and an HUD. Spatially coded light patterns are projected from two projectors on a target object surface. The light projected from the two projectors are added up on the object surface to produce unified color and luminance. On the object surface, light is simply added up, so that a pattern whose color and brightness correspond to distance and height appears. Hence, a distance to an object or a three-dimensional shape of an object can be highlighted by the color and brightness presented on the object for perception by human beings.

Optical System Module For An Optical Measuring Device

An optical system module for an optical measuring device, especially a laser rangefinder, includes an optical system support, a display and a display holder, the display holder and the display being designed such that they embrace the optical system support between its axial end zones and that they have corresponding connecting elements detachably interconnecting them.

Laser scanning sensor

A laser scanning sensor ( 100 ) of an embodiment of the present invention includes a laser range finder ( 110 ), a scanning mechanism ( 120 ), a data acquisition portion ( 130 ), a dirt determination portion ( 140 ), an alert output control portion ( 150 ) and a memory ( 160 ). The laser range finder ( 110 ) is arranged inside a housing ( 101 ) having an opening portion, and the opening portion is covered with a lens cover ( 116 ) that can transmit laser light. In the dirt determination portion ( 140 ), a predetermined threshold to be compared with a received light level is changed based on maximum detection distance information in each measurement direction.

Energy-saving 3-d sensor

A 3-D sensor for controlling a control process comprising a light source that includes at least one illumination source, a reception matrix for receiving a complete image of light reflected from areas from a spatial section, an evaluation device for determining the distance between the areas and the reception matrix, and a supervisory device for recognizing an object, in which the light source illuminates a partial region of the spatial section which has at least one interspace.

Infrared sensor module

An infrared sensor module includes a first infrared sensor that includes a first light emitting unit configured to emit infrared light to an object and a first light receiving unit configured to detect an amount of infrared light reflected from the object, a second infrared sensor that includes a second light emitting unit configured to emit infrared light to the object and a second light receiving unit configured to detect an amount of the infrared light reflected from the object, and a controller to measure reflectivity of the object using a peak output voltage of the first light receiving unit, and to measure a distance to the object using not only the measured object reflectivity but also an output voltage of the second light receiving unit. As a result, the distance from the infrared sensor to the object can be correctly measured irrespective of the reflectivity of the object.

Object detection system having interference avoidance strategy

An object detection system for a first machine is disclosed. The object detection system may have at least one transmitter configured to generate a laser beam directed onto a ground surface in proximity to the first machine, and a receiver configured to detect the laser beam and generate a corresponding signal. The object detection system may also have a controller in communication with the at least one transmitter and the receiver. The controller may be configured to generate an electronic terrain map based on the signal. The controller may also be configured to make a determination that a second machine is operating within a range of the first machine, and to adjust operation of the at least one transmitter and receiver based on the determination to reduce undesired interactions caused by operation of the second machine.

Application using a single photon avalanche diode (spad)

A sporting device may include a proximity detector, and a housing for carrying the proximity detector. The proximity detector may comprise a single photon avalanche diode for measuring the speed of an object struck by the housing. For example, the housing may define a tennis racket.

Threat detection systems and methods using position-sensing photodiodes

Threat detection systems and methods are disclosed that employ position-sensing photodiodes to locate a munitions flash within a field of view of a collection optical system. The flash is then located on a map of the monitored terrain, which map can be displayed to a system user. Processing electronics determine whether the flash is actually munitions-based or is from another non-threatening light source.

Atmospheric Measurement System

A magnitude and direction, or a measure responsive thereto, of a velocity (V) of a first portion ( 17 ) of an atmosphere ( 20 ) are determined from at least first and second portions of scattered light ( 30 ) generated along a common beam of light ( 28 ) within the first portion ( 17 ) of the atmosphere ( 20 ) and received along linearly independent directions at locations that are relatively remote with respect to one another, at least one of which is relatively remote from a source ( 11 ) of the beam of light ( 28 ).

LIDAR System Comprising Large Area Micro-Channel Plate Focal Plane Array

A sensor system is provided comprising a precision tracking sensor element and one or more acquisition sensor elements. The acquisition sensor elements may be mounted on a rotating base element that rotates about a first axis. The precision tracking sensor elements may be mounted on a hinged or pivoting element or gimbal on the housing and provided with drive means to permit a user to selectively manually or automatically direct it toward a scene target of interest detected by the acquisition sensor elements. At least one of the imaging elements in the precision tracking sensor or acquisition sensors is stacked micro-channel plate focal plane array element.

Phase Measurement Calibrating Method And Calibrating Device Based on Liquid Crystal Light Valve Principle

Phase measurement calibrating method, calibrating device and ranging device based on the liquid crystal shutter principle are disclosed. A light wave is emitted by a light wave emitter ( 1 ) to a tested target through a first liquid crystal shutter ( 3 ). The light wave is reflected and returned from the tested target to be focused by an optical device, and is received by a receiver ( 7 ). The received light wave is used as the external light path beam of the measurement system. While the light wave is passing through the first liquid crystal shutter ( 3 ), a part of the light wave is reflected by the first liquid, crystal shutter ( 3 ) to pass through a second liquid crystal shutter ( 4 ). The light wave passing through the second liquid crystal shutter ( 4 ) is received directly by the receiver ( 7 ) and used as the internal light path beam for fundamental reference of the system phase measurement. The first liquid crystal shutter ( 3 ) and the second liquid crystal shutter ( 4 ) are switched respectively while the system operates so that the receiver ( 7 ) is utilized for comparing phases of the internal light path beam and the external light path beam received respectively to output phase shift for eliminating a fundamental reference. The calibrating method achieves phase compensation and calibration, increases measurement accuracy of a laser ranging operation, and enhances ranging stability of the system.

Apparatus, optical assembly, method for inspection or measurement of an object and method for manufacturing a structure

An optical assembly for a system for inspecting or measuring of an object is provided that is configured to move as a unit with a system, as the system is pointed at a target, and eliminates the need for a large scanning (pointing) mirror that is moveable relative to other parts of the system. The optical assembly comprises catadioptric optics configured to fold the optical path of the pointing beam and measurement beam that are being directed through the outlet of the system, to compress the size of the optical assembly.

System and method for identifying non-cooperative pulsed radiation sources in a field-of-view of an imaging sensor

A system and method for identifying a pulsed radiation source may include an imaging sensor having a frame rate that is less than a pulse repetition frequency (PRF) of the pulsed radiation source. A processing unit may be in communication with the imaging sensor, and be configured to (i) process a sequence of image data of a scene captured by the imaging sensor to determine whether radiation of the pulsed radiation source is detected, (ii) determine a PRF code of the pulsed radiation source from possible multiple different PRF codes based on the processed sequence of image data, and (iii) notify a user of the PRF code or information associated with the PRF code.

Distance detecting induction device

A distance detection induction device 100 comprises a housing 1, a condensing lens 2, a circuit board 3 having multiple electronic components, an infrared light emitting means 4, a light receiving means 5 for receiving and sensing the reflected infrared light. The housing 1 comprises a main body 10 and two round openings 11 and 12 on the top of the main body 10. The condensing lens 2 has an emitting lens 21 and a receiving lens 22 respectively located at the two round openings 11 and 12. The circuit board 3 bearing multiple electronic components for processing signal is mounted inside the main body 10. The infrared light emitting means 4 is to be infrared light-emitting diodes, emitting the infrared light to the emitting lens 21. The infrared light receiving means 5 is to be distance detecting sensing module, sensing the reflected light focused by the receiving lens 22. A connection part 23 having at least a bending part is set between the emitting lens 21 and the receiving lens 22. The distance detection induction device of the present invention has higher positioning precision and can enhance the induction performance of the whole device.

Laser ranging tracking and designation using 3-d focal planes

The present invention tracks or locates small moving objects, or generates a 3-D frame of data by using 3-D focal plane arrays with low laser energy and few mechanically moving parts. The invention may be used to determine the direction of a laser designating a target, for target tracking, used as a 3-D movie/video camera or used to provide data for autonomous navigation.

Ladar sensor for landing, docking and approach

A system for landing or docking a mobile platform is enabled by a flash LADAR sensor having an adaptive controller with Automatic Gain Control (AGC). Range gating in the LADAR sensor penetrates through diffuse reflectors. The LADAR sensor adapted for landing/approach comprises a system controller, pulsed laser transmitter, transmit optics, receive optics, a focal plane array of detectors, a readout integrated circuit, camera support electronics and image processor, an image analysis and bias calculation processor, and a detector array bias control circuit. The system is capable of developing a complete 3 -D scene from a single point of view.

Laser tracker with enhanced illumination indicators

A coordinate measurement device includes: first and second angle measuring devices; a distance meter; a position detector; a first collection of illuminators rotatable about the first axis and fixed with respect to the second axis, the first collection configured to provide a first light selected from among at least two different colors of light in a visible spectrum, the first collection configured to make the first light visible from first and second points along the second axis and external to the device, the first and second points on opposite sides of the device; a second collection of illuminators rotatable about the first and second axes, the second collection configured to provide at least a second light selected from among two different colors of illumination in the visible spectrum; and a processor configured to provide a pattern of illumination for the first and second collections.

Unit pixels, depth sensors and three-dimensional image sensors including the same

A unit pixel of a depth sensor includes a light-receiver configured to perform photoelectric conversion of an incident light to output an electrical signal and at least two sensors adjacent to the light-receiver to receive the electrical signal from the light-receiver such that a line connecting the sensors forms an angle greater than zero degrees with respect to a first line, the first line passing through a center of the light-receiver in a horizontal direction.

Back-illuminated distance measuring sensor and distance measuring device

Two charge quantities (Q 1 ,Q 2 ) are output from respective pixels P (m,n) of the back-illuminated distance measuring sensor 1 as signals d′(m,n) having the distance information. Since the respective pixels P (m,n) output signals d′(m,n) responsive to the distance to an object H as micro distance measuring sensors, a distance image of the object can be obtained as an aggregate of distance information to respective points on the object H if reflection light from the object H is imaged on the pickup area 1 B. If carriers generated at a deep portion in the semiconductor in response to incidence of near-infrared light for projection are led in a potential well provided in the vicinity of the carrier-generated position opposed to the light incident surface side, high-speed and accurate distance measurement is enabled.

Analyzing data from networked radar detectors

A radar detector accesses a network interface module that enables communication of data to and from a server. The server executes analysis algorithms that analyze data received from multiple radar detectors to develop predictions about the likelihood of future alerts or threats in geographic locations. The server communicates the predictions to each of the radar detectors based on the geographic locations corresponding to each of the radar detectors. Each radar detector communicates alert levels as needed to its corresponding radar detector user based on predictions that correspond to the geographic locations corresponding to each of the radar detectors.

Anti-geolocation

Methods, apparatus, and articles of manufacture make Geolocation of a source transmitter more difficult or impossible. Scatterers common to a source transmitter and an intended receiver are identified using a variety of techniques, such as iterative time reversal (ITR) and Singular Value Decomposition (SVD) of a scatter matrix. The source transmitter then uses time reversal and knowledge of the signatures of the scatterers to focus its transmissions on one or more of the scatterers, instead of the intended receiver. The source transmitter may have multiple antennas or antenna elements. The source transmitter and/or the intended receiver may include antenna elements with Near-Field Scatterers to enable spatial focusing below the diffraction limit at the frequencies of interest. The source transmitter may be a plurality of ad hoc nodes cooperating with each other.

Image-capturing device

The image-capturing device according to the present invention includes a solid-state imaging element, an infrared LED which emits infrared light, a light-emission controlling unit which causes the infrared LED to emit infrared pulsed light on a per frame time basis, and a signal processing unit which extracts, from the solid-state imaging element, a color visible-light image signal in synchronization with a non-emitting period and an infrared image signal in synchronization with an emitting period of the infrared LED. The solid-state imaging element includes an image-capturing region in which unit-arrays are two-dimensionally arranged, and each of the unit-arrays has a pixel for receiving green visible light and infrared light, a pixel for receiving red visible light and infrared light, a pixel for receiving blue visible light and infrared light, and a pixel for receiving infrared light.

Optoelectric sensor and a method for the detection and distance determination of objects

An optoelectronic sensor ( 10 ) for the detection and distance determination of objects in a monitored area ( 18 ) transmits a transmission light beam ( 14 ), generates a reception signal from remitted transmission light ( 20 ), and determines an object distance from a light time of flight. A reception path between light receiver ( 24 ) and evaluation unit ( 30 ) is divided into a first and a second partial reception path ( 46, 48, 50, 52 ) at a splitter element ( 44 ) comprising filtering properties to pass higher frequency parts of the reception signal on to the first partial reception path ( 46, 48 ) and lower frequency parts on to the second partial reception path ( 50, 52 ). An object's distance is determined from the first and an opacity from the second partial reception signal.

Data analysis method and apparatus for estimating time-axis positions of peak values within a signal based on a series of sample values of the signal

A series of samples derived by fixed-frequency sampling of a received signal are processed to detect (local) maximum-value and minimum-value samples. For each of the maximum-value samples, a corresponding reference value and a corresponding group of samples are derived. The reference value is set higher than that of a minimum-value sample which adjoins the maximum-value sample, and the corresponding group consists of successively adjacent samples including the maximum-value sample, each having a higher value than the reference value. The estimated time-axis position of a peak value of the received signal is obtained within the range of time-axis positions of the corresponding group.

Systems and methods for detecting cracks in terrain surfaces using mobile lidar data

Systems ( 100 ) and methods ( 300 ) for automatically generating a quality metric for a specified surface area of a terrain ( 104 ). The methods involve acquiring mobile LIDAR data defining a geometry of the specified surface area of the terrain. The mobile LIDAR data is acquired by LIDAR equipment ( 106 ) disposed on a vehicle ( 102 ) traveling along the terrain. The methods also involve automatically determining a quality metric defining a quality of the specified surface area of the terrain using the mobile LIDAR data.

Laser speed gun optical system

A laser speed gun comprises a laser ray transmitter provided on an optical axis with a laser ray emitting device and with a short distance lens and located at an intermediate location therebetween on said optical axis, a beam splitter allowing laser rays to pass through and reflect visible light toward a CCD camera; a laser ray receiver provided on an optical axis with a laser ray receiving device and with a long distance lens located at an intermediate location between them on said optical axis, a beam splitter allowing laser rays to pass through and reflect visible light from a target toward a CCD camera; and two CCD cameras, one of which is associated with the laser ray transmitter optics and receives reflected light from its beam splitter, and the other which is associated with the laser ray receiver optics and receives reflected light from its beam splitter

Micro-radian class line of sight and centration stabilization system

This document discusses apparatus and methods for aligning and centering an articulated laser projection system. In an example, a laser projection system can include an alignment stabilization system configured to align an optical path to a reference and a centration stabilization system configured to center the optical path within an aperture. The alignment stabilization system can have an alignment stabilization processing path configured to receive alignment information from an alignment sensor, and the centration stabilization system can have a centration stabilization processing path configured to receive centration information from a centration sensor.

Device for optically scanning and measuring an environment

With a device for optically scanning and measuring an environment, which is designed as a laser scanner, with a light emitter, which emits an emission light beam, with a light receiver which receives a reception light beam which is reflected from an object in the environment of the laser scanner or scattered otherwise, and with a control and evaluation unit which, for a multitude of measuring points, determines at least the distance to the object, at least one shell is provided as part of the housing of the laser scanner, said shell being partially covered on its outer side by at least one yoke which serves as protection.

Radiation sensor

A radiation sensor of the type having a packaged radiation source and detector, which includes an isolator that blocks propagation within the package of radiation from the source to the detector, in order to improve signal to noise ratio of the sensor. The isolator is formed by appropriately formed surfaces of the package.

3d image acquisition apparatus and method of calculating depth information in the 3d image acquisition apparatus

A 3-dimensional (3D) image acquisition apparatus and a method of calculating depth information in the 3D image acquisition apparatus, the 3D image acquisition apparatus including: an optical modulator for modulating light reflected from a subject by sequentially projected N (N is 3 or a larger natural number) light beams; an image sensor for generating N sub-images by capturing the light modulated by the optical modulator; and a signal processor for calculating depth information regarding a distance to the subject by using the N sub-images.

Fast, High Resolution 3-D Flash LADAR Imager

A device and method for LADAR ranging using relatively long laser pulse widths and slower system clock speeds is provided. The center points of the sent and received laser signal such as Gaussian laser pulses are identified by time sampling the sent and received laser signal waveforms at predetermined time positions. The signal energy within each time sample of the respective sent and received laser signals defines a clock “bin”. The received laser signal generates an output from a photodetector cell on a focal plane array that is converted into voltage. The signal energy is integrated using a capacitor array for each of the clock bins and is representative of the signal energy in each time sample. The output of the capacitor array is collected in buffer and digitized. Signal processing means extracts the center of the transmitted and received pulses and the time-of-flight calculated as the time between the transmitted and returned centers of the laser signal pulses.

Optical proximity sensors with offset compensation

An optical proximity sensor includes a driver, light detector and offset signal generator. The driver selectively drives a light source. The light detector produces an analog detection signal indicative of an intensity of light detected by the light detector. The detected light can include light transmitted by the light source that reflected off an object within the sense region of the optical sensor, interference light and ambient light. The interference light includes light transmitted by the light source, and detected by the light detector, that was not reflected off an object within the sense region of the optical sensor. The offset signal generator selectively produces an analog offset signal that is combined with the analog detection signal produced by the photodetector to produce an analog compensated detection signal. The analog offset signal compensates for at least a portion of the interference light included in the light detected by the photodetector.

Distance estimation system and method for a railway vehicle

There is provided a ranging system for a railway vehicle. The system includes a reflector disposed along a railway relative to a stopping point and a ranging unit disposed on the railway vehicle. The ranging unit includes a transceiver configured to transmit an outbound signal and receive a corresponding reflected signal from the reflector. The ranging unit also includes a data storage unit configured to store a reference distance between the reflector and the stopping point. The ranging unit also includes a processor configured to determine a measured distance between the railway vehicle and the reflector based on an elapsed time between the transmitting the outbound signal and receiving the reflected signal. The processor determines a distance between the railway vehicle and the stopping point based on the measured distance and the reference distance.

Distance measuring sensor

A distance measuring sensor includes a substrate doped with a first impurity, first and second charge storage regions spaced apart from each other in the substrate and doped with a second impurity, a photoelectric conversion region doped with the second impurity between the first and the second charge storage regions and configured to receive light to generate charges, a first dielectric layer covering the first and second charge storage regions and the photoelectric conversion region, a second dielectric layer on the first dielectric layer, and first and second transfer gates spaced apart from each other on the first dielectric layer and between the first and second charge storage regions. Each of the first and second transfer gates may cover a portion of the second dielectric layer and may be configured to selectively transfer the charges generated in the photoelectric conversion region to the first and second charge storage regions.

Self-calibrated, remote imaging and data processing system

An imaging sensor system, adaptably mountable to a vehicle having a view of a target area comprising: a rigid mount unit having at least two imaging sensors disposed within the mount unit, wherein a first imaging and a second imaging sensor each has a focal axis passing through an aperture in the mount unit, wherein the first imaging sensor generates a first image area comprising a first data array of pixels and the second imaging sensor generates a second image area comprising a second data array of pixels, wherein the first and second imaging sensors are offset to have a first image overlap area in the target area, wherein the first sensors image data bisects the second sensors image data in the first image overlap area.

Data collection and point cloud generation system and method

A system has a range-finding laser device coupled to an operator that performs a latest scan measuring a plurality of data points indicative of range and angle, an attitude inertial measurement unit (IMU) that is affixed to the range-finding laser device that measures pitch, roll, and yaw of the range-finding laser device, and two zero-velocity update (zupt) IMUs coupled to the operator that estimate position, velocity, and yaw of the operator. Further, the system has logic that transforms a plurality of data points from a sensor frame of reference, based upon measurements made, to a global frame of reference using data indicative of a latest global pose to obtain data indicative of transformed data points and merges the data indicative of the transformed data points with a point cloud.

Multifunction light transceiver device

An exemplary multifunction light transceiver device includes a plurality of light sources. At least one luminescent member is configured to emit visible light responsive to radiation incident on the luminescent member. A controller selectively controls the light sources to achieve multiple functions. The controller controls at least one of the light sources to irradiate the luminescent member to illuminate an area near the device. The controller controls at least one of the light sources to communicate information from the device. The controller also controls at least one of the light sources to emit light toward an object. A detector associated with the controller detects any portion of light that is reflected toward the detector. The controller uses any detected light for making a determination regarding an object from which the detected light reflected.

Atmospheric humidity or temperature or cloud height measuring method and apparatus

An atmospheric cloud height, humidity profile, or temperature measuring method and arrangement are provided. In the method, pulsed laser signals ( 14 ) are transmitted through transmission optics ( 2, 3, 4, 5, 6 ) to the atmosphere and the signal ( 15 ) reflected or scattered back from there is detected. An interference filter ( 3 ) is used in the optics, in order to stabilize the transmitted optical power to the centre wavelength of the interference filter ( 3 ).

High dynamic range & depth of field depth camera

In order to maximize the dynamic range and depth of field for a depth camera used in a time of flight system, the light source is modulated at a plurality of different frequencies, a plurality of different peak optical powers, a plurality of integration subperiods, a plurality of lens foci, aperture and zoom settings during each camera frame time. The different sets of settings effectively create subrange volumes of interest within a larger aggregate volume of interest, each having their own frequency, peak optical power, lens aperture, lens zoom and lens focus products consistent with the distance, object reflectivity, object motion, field of view, etc. requirements of various ranging applications.

Triangulation light sensor

A triangulation light sensor includes at least one light transmitter for transmitting a light signal into a detection zone, a light receiver having a plurality of receiver elements for receiving light from the detection zone reflected diffusely and/or specularly, and a reception optics arranged between the detection zone and the light receiver in the beam path, with the position of a light spot produced on the light receiver in a triangulation direction by the reflected light resulting in dependence on the distance of the object. The reception optics includes at least one multisegmented lens element having a plurality of lens segments with mutually spaced apart optical axes in the triangulation direction and at least one freeform lens element or one diffractive-optical element having a multisegmented lens element having a plurality of lens segments with optical axes spaced apart from one another in the triangulation direction.

METHOD FOR SUPPRESSING AN ECHO SIGNAL

Method for suppressing an echo signal in a range finder device, which has at least one light-sensitive receiver and at least one laser light source as transmitter, characterized in that at least one counter signal corresponding to the echo signal is generated and which counter signal is super-imposed to a signal generated by the transmitter. 1. A method for suppressing an echo signal in a range finder device , which has at least one light-sensitive receiver and at least one laser light source as transmitter , the method comprising:generating at least one counter signal corresponding to the echo signal; andsuper-imposing the at least one counter signal to a signal generated by the transmitter.2. The method according to claim 1 , wherein the signal generated by the receiver and the counter signal can be super-imposed in an additive or subtractive way.3. The method according to claim 1 , wherein a resulting signal resulting from the first signal generated by the receiver and the counter signal is intensified.4. The method according to one of the claim 1 , further comprising a calibrating step claim 1 , wherein a level and/or a value and/or an amplitude and/or a pulse shape of the counter signal are varied.5. The method according to claim 4 , wherein the calibrating step is carried out prior to the range finding step.6. The method according to claim 4 , wherein within the scope of the calibrating step claim 4 , a signal vector of the resulting signal is analyzed.7. A method according to claim 4 , wherein the calibrating step is repeated several times.8. A range finder device having at least one light-sensitive receiver and at least one laser light source as transmitter claim 4 , wherein the range finder device is adapted to generate at least one counter signal corresponding to an echo signal and which counter signal is super-imposed to a signal generated by the transmitter.9. The range finder device according to claim 8 , wherein it is adapted to super-impose the signal ...

Vector velocimeter

The present invention relates to a compact, reliable and low-cost vector velocimeter for example for determining velocities of particles suspended in a gas or fluid flow, or for determining velocity, displacement, rotation, or vibration of a solid surface, the vector velocimeter comprising a laser assembly for emission of a measurement beam for illumination of an object in a measurement volume with coherent light whereby a signal beam emanating from the object in the measurement volume is formed in response to illumination of the object by the measurement beam, a reference beam generator for generation of a reference beam, a detector system comprising a first detector arrangement arranged in such a way that the signal beam and the reference beam are incident upon the first detector arrangement with the reference beam propagating at an angle relative to a signal beam, and wherein the first detector array comprises a first detector array of first detector elements, each of the first detector elements converting the intensity of the interfering signal beam and reference beam incident thereupon into a corresponding electronic detector element signal thereby generating an oscillating electronic detector element signal when the fringe pattern formed by the interfering signal beam and reference beam moves across the first detector array; and a signal processor that is adapted for generation of a velocity signal corresponding to a first velocity component of movement of the object in the measurement volume in the longitudinal direction of the measurement volume based on the electronic detector element signals from each of the first detector elements.

Light condensing lens and three-dimensional distance measuring apparatus

A light directing system including first and second relay lenses through which light passes, the first and second relay lenses being positioned at conjugate positions, the first relay lens being positioned between the second relay lens and a light source, a focal length of the first relay lens being longer than a focal length of the second relay lens.

Foliage penetration based on 4d lidar datasets

A method for detecting terrain, through foliage, includes the steps of: receiving point cloud data in a three-dimensional (3D) space from an airborne platform, in which the point cloud data includes foliage that obscures the object; reformatting the point cloud data from the 3D space into a one-dimensional (1D) space to form a 1D signal; and decomposing the 1D signal using a wavelet transform (WT) to form a decomposed WT signal. The decomposed WT signal is reconstructed to form a low-pass filtered profile. The method classifies the low-pass filtered profile as terrain. The terrain includes a natural terrain, or a ground profile.

Method for driving semiconductor device

A semiconductor device capable of acquiring high-precision range information in a short time is provided. Alternatively, a semiconductor device capable of acquiring the range information and image information concurrently in a short time is provided. The accuracy of range information is increased by performing infrared light irradiation more than once to acquire a detection signal and making infrared light irradiation periods identical and extremely short. By detecting light reflected from substantially the same points of an object by adjacent photodiodes, the accuracy of range information can be maintained even when the object is a moving object. By overlapping a photodiode absorbing visible light and transmitting infrared light with a photodiode absorbing infrared light, range information and image information can be acquired concurrently.

Optical beam sweeper

An optical device, comprising an optical device, comprising an optical beam sweeper that includes a multi-wavelength laser source and an optical power splitter. The optical power splitter has an optical input optically coupled to the multi-wavelength laser source, the optical power splitter having N optical outputs, each optical output connected by a corresponding optical pathway of a parallel array to an optical output surface of the optical beam sweeper. N parallel optical paths connect the optical input to the optical output surface, each optical path including a corresponding one the optical pathways and having a different optical path length than the one or more other optical paths, the optical path lengths differing in a wavelength-dependent way.

Structured Light Projection and Acquisition

A structured light pattern is projected onto a scene using pulses of light emitted by light emitting diodes (LEDs) of the projector, wherein during the pulses of the LEDs, the LEDs are driven at an overdrive current when the LEDS are ON. A sensor of a camera only integrates light from the scene during the pulses to acquire images of the scene.

Apparatus and optical method of ranging and of high bit-rate communication

An optical apparatus for ranging and communication in free space comprises a rangefinder comprising a device for transmitting an optical signal to a target and a device for receiving the signals backscattered by the target. A system for optical communication in free space comprises a device for transmitting an optical signal to a remote optical receiving device. The transmitting device of the rangefinder and transmitting device of the communication system is a transmitting device common to the rangefinder and communication system and transmitting pulses of peak power greater than 50 W and shape factor less than 0.01 or a modulated continuous signal of peak power less than 10 W and shape factor equal to approximately 0.5 and the apparatus comprises a supervisor controlling the common transmitting device according to two modes, the pulse mode to perform the ranging function, or the modulated continuous mode to perform the optical communication function.

Marking or scanning apparatus with a measuring device for measuring the speed of an object and a method of measuring the speed of an object with such a marking or scanning apparatus

Apparatus for marking and/or scanning (m/s) an object comprising a m/s head ( 20 ) having a plurality of receiving spaces ( 24 ) for m/s devices ( 40 ), a driving mechanism for moving the object, a measuring device ( 50 ) for measuring the object speed comprising a transmitter having a transmitting fibre ( 56 ) for transmitting light to the object, a receiver having first and second light receiving fibres ( 57, 58 ) for receiving light reflected from the object forming light signals, and processor means ( 70 ) for determining a time shift between the light signals to provide a speed value of the object, all the fibres are arranged in a common first ferrule ( 52 ), the m/s devices include second ferrules, the first and second ferrules have corresponding connector sections and are variably connected to the receiving spaces of the scanning head, and the speed measuring device is arranged in one of the receiving spaces. The invention further relates to a method for measuring the object speed with the m/s apparatus.

Signal processing device of scanning-type distance measurement device, signal processing method, and scanning-type distance measurement device

A signal processing device of a scanning-type distance measurement device includes: a distance calculation unit for, on the basis of a predetermined correlation relationship between measured light and reflection light, calculating, for each predetermined scan angle, the distance from the scanning-type distance measurement device to an object; a to-be-monitored object determination unit for performing a to-be-monitored object determination process, in which, when the distance calculation unit calculates a distance within a to-be-monitored region for N number of scans (N is an integer equal to or greater than 2) consecutively in a specific scan angle direction, it is determined that there is an object to be monitored in the specific scan angle direction; and a signal output unit which, when it is determined by the to-be-monitored object determination unit that there is an object to be monitored, outputs a to-be-monitored object detection signal.

Depth sensing apparatus and method

A depth sensing apparatus and method for acquiring a depth image of a target object may calculate a difference voltage between a first floating diffusion node and a second floating diffusion node, based on a voltage of a photodiode stored in the first floating diffusion node in a first phase interval and a voltage of the photodiode stored in the second floating diffusion node in a second phase interval, using a sub-integration period, may feed back the difference voltage to one of the first floating diffusion node and the second floating diffusion node, and may calculate a depth value of a pixel based on difference voltages accumulated during an integration period including sub-integration periods.

Method and Apparatus for a Clock and Signal Distribution Network for a 60 GHz Transmitter System

Herein is presented, a low power on-die 60 GHz distribution network for a beamforming system that can be scaled as the number of transmitters increases. The transmission line based power splitters and quadrature hybrids whose size would be proportional to a quarter wavelength (˜600 μm) if formed using transmission lines are instead constructed by inductors/capacitors and reduce the area by more than 80%. An input in-phase I clock and an input quadrature Q clock are combined into a single composite clock waveform locking the phase relation between the in-phase I clock and quadrature Q clock. The composite clock is transferred over a single transmission line formed using a Co-planar Waveguide (CPW) coupling the source and destination locations over the surface of a die. Once the individuals the in-phase I and quadrature Q clocks are required, they can be generated at the destination from the composite clock waveform.

System and Method for Detecting a Face Contour Using a Three-Dimensional Measurement System

A system uses range and Doppler velocity measurements from a lidar system and images from a video system to estimate a six degree-of-freedom trajectory of a target. The system may determine a skin area or face contour based on the 3D measurements from a lidar subsystem and information regarding the location of various facial features from the 2D video images of a video subsystem.

Distance measuring methods

A distance measuring method includes: emitting a pulse of measuring light towards an object; receiving a pulse measuring light from the object and generating a pulse signal corresponding to the pulse of measuring light received from the object; delaying a first portion of the generated pulse signal for a predetermined time; generating an intensity signal indicative of an intensity of the generated pulse signal, while delaying the first portion of the generated pulse signal; amplifying the delayed first portion of the generated pulse signal using a gain dependent on the generated intensity signal; and determining a value representing a distance based on the amplified delayed first portion of the generated pulse signal.

Compact laser radar corner cube

Focus assemblies for laser radar are situated to receive a measurement beam that is focused at or in the focus assemblies. In some examples, focus assemblies include a corner cube and a return reflector, and the measurement beam is focused on, at, or within the corner cube or return reflector. A polarizing beam splitter and a quarter wave plate can be situated so that an input measurement beam and an output measurement beam can be separated.

Distance measurement apparatus

A distance measurement apparatus that measures distance to a target by irradiating the target with laser beams and detecting light reflected by the target includes a light projection unit. The distance measurement apparatus also includes a plurality of light emission units to emit a plurality of laser beams onto the target while setting optical paths of the plurality of laser beams radially along a given virtual plane; and a light receiving unit including a plurality of light receivers to receive the plurality of laser beams projected from the light projection unit and reflected by the target.

Measurement Device for Measuring a Distance between the Measurement Device and a Target Object using an Optical Measurement Beam

The disclosure relates to a measurement device for optically measuring a distance to a target object, in particular a handheld measurement device. The disclosure relates to such a measurement device having a transmitting device for transmitting an optical measurement beam to a target object; a receiving device having a detection surface for detecting the optical measurement beam returning from the target object, wherein the detection surface has a plurality of pixels, and each pixel has at least one light-sensitive element; and a reference device having a detection surface for detecting a device-internal reference beam. According to the disclosure, the detection surface of the reference device has a plurality of pixels, wherein each pixel has at least one light-sensitive element. 1. A hand-held measuring instrument for ranging , comprising:a transmission apparatus configured to emit optical measurement radiation toward a target object;a reception apparatus including a first detection area configured to detect optical measurement radiation returning from the target object, the first detection area having a first plurality of pixels, each pixel of the first plurality of pixels having at least one light-sensitive element; anda reference apparatus including a second detection area configured to detect device-internal reference radiation, the second detection area having a second plurality of pixels, each pixel of the second plurality of pixels having at least one light-sensitive element.2. The measuring instrument as claimed in claim 1 , wherein one pixel of the second plurality of pixels of the second detection area of the reference apparatus is assigned to one pixel of the first plurality of pixels of the first detection area of the reception apparatus.3. The measuring instrument as claimed in claim 1 , wherein a pixel of the first plurality of pixels of the first detection area of the reception apparatus has the same number of light-sensitive elements as a pixel of ...

Method and apparatus for identifying a vibrometry spectrum in imaging applications

A method includes obtaining image data associated with a specified area having one or more objects. The method also includes segmenting the image data into one or more segments associated with the one or more objects. The method further includes analyzing each of the one or more segments to identify a vibrometry spectrum associated with the corresponding object. In addition, the method includes generating an image of the specified area using the vibrometry spectrum associated with each object. The image of the specified area could illustrate each of the one or more objects with an intensity based on a total power of that target's total vibrational energy. The image of the specified area could also illustrate movement of at least one object over time.

OPTICAL RADAR DEVICE

An optical radar device for scanning an object that reduces the effects of stray light is provided. The optical radar device has a light source, a light scanning section, a light path change section, a light receiver, and an opposite phase signal adder. The opposite phase signal adder adds an opposite phase signal to the output signal from the light receiver. A rise timing of the opposite phase signal is delayed by a predetermined time relative to an output timing of the pulse light, and the opposite phase signal has an opposite phase with respect to a phase of the reflected light. 1. An optical radar device comprising:a light source outputting a pulse light;a light scanning section operating a mirror plate (i) to reflect the pulse light toward an object and (ii) to reflect a reflected light received from the object;a light path change section guiding the pulse light outputted from the light source toward the light scanning section and guiding the reflected light reflected by the light scanning section in a direction that is different from a light source direction;a light receiver that receives the reflected light; andan opposite phase signal adder that adds an opposite phase signal to the output signal from the light receiver, whereina rise timing of the opposite phase signal is delayed by a predetermined time relative to an output timing of the pulse light, and the opposite phase signal has an opposite phase with respect to a phase of the reflected light.2. The optical radar device of claim 1 , whereina timing of the opposite phase signal is a timing at which stray light generated inside or near the optical radar device is received by the light receiver.3. The optical radar device of further comprising:an amplitude controller that controls an amplitude of the opposite phase signal.4. The optical radar device of claim 3 , whereinthe amplitude controller controls the amplitude of the opposite phase signal according to a device state of the optical radar device.5. ...

OPTICAL RADAR DEVICE

An optical laser device for scanning an object is provided. The optical radar device includes a light source that outputs a beam having an elliptical cross section. The beam is output towards a light scanning section that rotates a mirror plate about an axis for (i) reflecting the beam toward the object and (ii) reflecting a reflected light received from the object. The device also includes a light path change section that guides the beam toward the light scanning section and guides the reflected light from the light scanning section in a direction that is different from a direction of the light source. A light receiver receives the reflected light. Further, the elliptical cross section of the beam has a major axis and the major axis is substantially parallel to the axis of the mirror plate. 1. An optical radar device for scanning an object comprising:a light source outputting a beam having an elliptical cross section;a light scanning section rotating a mirror plate about an axis to (i) reflect the beam toward the object and (ii) reflect a reflected light received from the object;a light path change section guiding the beam toward the light scanning section and guiding the reflected light reflected by the light scanning section in a direction that is different from a light source direction; anda light receiver receiving the reflected light, whereinthe elliptical cross section of the beam has a major axis and the major axis is substantially parallel to the axis of the mirror plate.2. The optical radar device of claim 1 , whereinthe light source outputs the beam from an edge emitting type laser diode.3. The optical radar device of claim 1 , whereinthe light path change section is a polarized light beam splitter, andthe light path change section and the light scanning section are interposed by a λ/4 board. This application is based on and claims the benefit of priority of Japanese Patent Application No. 2012-204415 filed on Sep. 18, 2012, the disclosure of which is ...

Proximity sensor and proximity sensing method using event-based vision sensor

A proximity sensor and a proximity sensing method using an event-based vision sensor are provided. The proximity sensor may include a point identification (ID) unit which identifies a point at which an output light output from a focused light source is reflected from an object in an image taken by the proximity sensor; and a distance determination unit which determines a distance between the object and the proximity sensor based on a position of the point.

Elevator system having a laser distance measuring device

An elevator system includes an elevator car and a laser distance measuring device. The elevator car is moved along a travel path that is delimited at the top by an upper boundary and at the bottom by a lower boundary. The laser distance measuring device emits a laser beam and determines a distance to a position at which the laser beam impinges on an object. The laser distance measuring device is mounted on the elevator car such that the laser beam can be directed upward to the upper boundary in a first configuration and can be directed downward to the lower boundary in a second configuration. A current position of the elevator car can thereby be determined in a redundant manner. Furthermore, in a third configuration, lateral distances to boundary markers can be measured to read out information that is codified by the boundary markers.

Sensor apparatus

There is provided a portable sensor apparatus (10) for surveying within a room (30) of a building. The sensor apparatus (10) comprises: a sensor unit (12) for temporary insertion into a room (30), the sensor unit (12) being moveable in a scanning motion, and comprising a plurality of outwardly directed sensors (16, 20, 24) arranged to capture sensor data associated with an environment of the sensor apparatus (10) as the sensor unit is moved through the scanning motion. The plurality of sensors (16, 20, 24) comprises: a rangefinder sensor (16); a thermal imaging sensor (20); and a camera (24).

Lidar Module With Monolithic Array

A single chip LIDAR module includes a laser, a photo diode, a photonic integrated circuit (PIC), a lens, and a housing. The laser is configured to output light at a predetermined wavelength. The photo diode is configured to detect light energy at the predetermined wavelength. The PIC is coupled with the laser and photo diode, and is integrated with a MEMS switch array that includes an optical antenna configured to diffract light at the predetermined wavelength. The lens is arranged over the PIC. The housing is configured to encompass the laser, the photo diode, and the PIC, and having a window configured to pass light associated with the PIC.

SEMICONDUCTOR LASER AND OPTICAL AMPLIFIER PHOTONIC PACKAGE

A light detection and ranging (LIDAR) device includes a laser assembly tier and a photonic integrated circuit (PIC) tier. The laser assembly tier includes a laser configured to emit laser light. The PIC tier includes a semiconductor optical amplifier (SOA) and a PIC wafer configured to incouple laser light into the PIC wafer and direct the laser light to the SOA. 1. A light detection and ranging (LIDAR) device for an autonomous vehicle , the LIDAR device comprising:a laser assembly tier including a laser configured to emit laser light; and a semiconductor optical amplifier (SOA); and', 'a PIC wafer configured to incouple the laser light into the PIC wafer and direct the laser light to the SOA., 'a photonic integrated circuit (PIC) tier including2. The LIDAR device of further comprising:a wafer layer disposed between the laser assembly tier and the PIC wafer, wherein the laser light is infrared laser light, and wherein the wafer layer is transparent to the infrared laser light.3. The LIDAR device of claim 2 , wherein the wafer layer includes a lens configured to receive the infrared laser light from the laser assembly tier claim 2 , and wherein the lens is integrated into the wafer layer and configured to focus the infrared laser light to an input grating of the PIC wafer.4. The LIDAR device of claim 2 , wherein the wafer layer includes:a laser carrier wafer, wherein the laser is coupled to the laser carrier wafer; andan SOA cap wafer that seals the SOA from an environment of the LIDAR device, wherein the SOA cap wafer is disposed between the PIC wafer and the laser carrier wafer.5. The LIDAR device of claim 2 , wherein the wafer layer and the PIC wafer are formed of single crystalline silicon.6. The LIDAR device of claim 2 , wherein the wafer layer seals the SOA from an environment of the LIDAR device claim 2 , and wherein the laser is coupled to the wafer layer.7. The LIDAR device of claim 1 , wherein the PIC wafer includes a lens configured to receive the laser ...

RANGE FINDING APPARATUS

A heater is disposed on an inner surface or an outer surface of a transmission window to cover a transmission region where at least either the transmission waves or the reflected waves pass through and a circuit component is disposed on the inner surface or the outer surface of the transmission window, in a region other than a region where the heater is disposed. 1. A range finding apparatus for measuring a distance to an object comprising:a detection module including an irradiation unit that irradiates transmission waves scanned in a scanning direction set in advance, and a detection unit that detects reflected waves of an object arriving from a scanning range;a housing that accommodates the detection module;a transmission window as a part of the housing provided facing the detection module, allowing the transmission waves and the reflected waves to transmit therethrough;a heater that heats the transmission window; anda circuit component used for the range finding apparatus, whereinthe heater is disposed on an inner surface or an outer surface of the transmission window to cover a transmission region where at least either the transmission waves or the reflected waves to be detected by the detection unit pass through; andthe circuit component is disposed on the inner surface or the outer surface of the transmission window, in a region other than a region where the heater is disposed.2. The range finding apparatus according to further comprising a dividing plate that that divides a region into an installation space where the irradiation unit is disposed and an installation space where the detection unit is disposed.3. The range finding apparatus according to further comprising a film substrate on which a pattern of a heater line constituting the heater and a wiring pattern extending to the circuit component are formed; andthe film substrate is provided on the transmission window.5. The range finding apparatus according to claim 1 , whereinthe transmission window is ...

DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD

There is provided a distance measuring device capable of improving the accuracy of measurement while reducing power consumption. A variation amplification part amplifies a variation in a temporal relative relationship between an electrical signal output from a light receiving element and a clock signal generated by a clock generation unit. Subsequently, a synchronizing part generates a synchronizing signal by synchronizing an electrical signal with a clock signal on the basis of the electrical signal and the clock signal after a variation is amplified by a variation amplification part. Subsequently, a histogram creating part creates a histogram based on a period of time from when a light source emits light to when the light receiving element receives reflected light, on the basis of the synchronizing signal generated by the synchronizing part. Subsequently, a distance calculation part calculates a distance to an object on the basis of the histogram created by the histogram creating part. 1. A distance measuring device comprising:a light source configured to emit light;a light receiving element configured to receive light reflected from an object reflecting the light;a variation amplification part configured to amplify a variation in a temporal relative relationship between an electrical signal output from the light receiving element and a clock signal;a synchronizing part configured to generate a synchronizing signal by synchronizing the electrical signal with the clock signal on the basis of the electrical signal and the clock signal after the variation is amplified by the variation amplification part;a histogram creating part configured to create a histogram based on a period of time from when the light source emits light to when the light receiving element receives reflected light, on the basis of the synchronizing signal generated by the synchronizing part; anda distance calculation part configured to calculate a distance to the object on the basis of the ...

Distance measuring method, distance measuring device, and recording medium

A distance measuring method according to the present disclosure includes: measuring, in an environment where background light is applied to an object, the illuminance of the background light; setting a distance measuring range based on the illuminance of the background light; setting, based on the distance measuring range set, an image capturing condition for an image capturer including a plurality of pixels each including an avalanche photo diode (APD) and an emission condition in which light is emitted from a light source; and measuring a distance to the object by controlling the image capturer and the light source based on the image capturing condition and the emission condition that are set.

LIDAR APPARATUS HAVING IMPROVED SIGNAL-TO-NOISE RATIO

Provided is a light detection and ranging (LiDAR) apparatus including a light source configured to generate light, an optical transmitter configured to emit the light generated by the light source to outside of the LiDAR apparatus, an optical receiver configured to receive light from the outside of the LiDAR apparatus, a resonance-type photodetector configured to selectively amplify and detect light having a same wavelength as a wavelength of light generated by the light source among the light received by the optical receiver, and a processor configured to control the light source and the resonance-type photodetector, wherein the resonance-type photodetector includes a resonator, a phase modulator provided on the resonator and configured to control a phase of light traveling along the resonator based on control of the processor, and an optical detector configured to detect an intensity of the light traveling along the resonator. 1. A light detection and ranging (LiDAR) apparatus comprising:a light source configured to generate light;an optical transmitter configured to emit the light generated by the light source to outside of the LiDAR apparatus;an optical receiver configured to receive light from the outside of the LiDAR apparatus;a resonance-type photodetector configured to selectively amplify and detect light having a wavelength that is the same as a wavelength of the light generated by the light source among the light received by the optical receiver; anda processor configured to control the light source and the resonance-type photodetector, a resonator;', 'a phase modulator provided on the resonator and configured to control a phase of light traveling along the resonator based on control of the processor; and', 'an optical detector configured to detect an intensity of the light traveling along the resonator., 'wherein the resonance-type photodetector comprises2. The LiDAR apparatus of claim 1 , wherein the processor is further configured to:provide the light ...

INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

Provided are an information processing system, an information processing method, and a storage medium that can accurately acquire a loading rate of loads on a load-carrying platform of a vehicle. The information processing system includes: a ranging unit that acquires a distribution of distances to a load loaded on a load-carrying platform of a vehicle or to a floor surface of the load-carrying platform; and a loading rate acquisition unit that acquires a loading rate of the load on the load-carrying platform based on the distribution of the distances. 1. An information processing system comprising:a ranging unit that acquires a distribution of distances to a load loaded on a load-carrying platform of a vehicle or to a floor surface of the load-carrying platform; anda loading rate acquisition unit that acquires a loading rate of the load on the load-carrying platform based on the distribution of the distances.2. The information processing system according to claim 1 , wherein the ranging unit acquires a two-dimensional distribution of the distances.3. The information processing system according to claim 1 , wherein the ranging unit emits light to the load or the floor surface and acquires the distribution of the distances based on reflected light from the load or the floor surface.4. The information processing system according to claim 3 , wherein the ranging unit performs a scan with the light emitted to the load or the floor surface.5. The information processing system according to claim 4 , wherein the ranging unit performs a scan with parallel light rays as the light.6. The information processing system according to claim 1 ,wherein the load-carrying platform is a box-shaped cargo space, andwherein the ranging unit is installed on a ceiling of the cargo space.7. The information processing system according to claim 1 , wherein the loading rate acquisition unit calculates a volume or a floor surface area of a vacant space above the load-carrying platform based on ...

DISTANCE IMAGE OBTAINING METHOD AND DISTANCE DETECTION DEVICE

A distance-image obtaining method includes: (A) setting a plurality of distance-divided segments in a depth direction, and (B) obtaining a distance image based on each of the plurality of distance-divided segments set. The obtaining of the distance image includes: obtaining a plurality of distance images by imaging two or more of the plurality of distance-divided segments, to obtain a first distance image group; and obtaining a plurality of distance images by imaging distance-divided segments, among the plurality of distance-divided segments, in a phase different from a phase of the two or more of the plurality of distance-divided segments, to obtain a second distance image group. 1. A distance-image obtaining method , comprising:(A) setting a plurality of distance-divided segments in a depth direction; and(B) obtaining a distance image based on each of the plurality of distance-divided segments set, wherein(B) includes:(B-1) obtaining a plurality of distance images by imaging two or more of the plurality of distance-divided segments, to obtain a first distance image group; and(B-2) obtaining a plurality of distance images by imaging distance-divided segments, among the plurality of distance-divided segments, in a phase different from a phase of the two or more of the plurality of distance-divided segments, to obtain a second distance image group.2. The distance-image obtaining method according to claim 1 , wherein the distance-divided segments have continuity in the depth direction.3. The distance-image obtaining method according to claim 1 , wherein the distance-divided segments have no continuity in the depth direction.4. The distance-image obtaining method according to claim 1 , wherein two or more distance-divided segments included in the two or more distance-divided segments imaged in (B-1) are displaced from two or more distance-divided segments included in the distance-divided segments imaged in (B-2) by a half segment claim 1 , respectively.5. The distance- ...

Large Scale Steerable Coherent Optical Switched Arrays

Aspects of the present disclosure describe large scale steerable optical switched arrays that may be fabricated on a common substrate including many thousands or more emitters that may be arranged in a curved pattern at the focal plane of a lens thereby allowing the directional control of emitted light and selective reception of reflected light suitable for use in imaging, ranging, and sensing applications including accident avoidance.

VARIABLE RESOLUTION AND AUTOMATIC WINDOWING FOR LIDAR

A beam steering control system includes a beam angle controller, a fast axis controller configured to receive a first command signal from the beam angle controller and configured to control a first axis component of a light pattern, and a slow axis controller arranged within a closed-loop system. The slow axis controller is configured to receive a second command signal from the beam angle controller and control a second axis component of the light pattern. 1. A beam steering control system comprising:a beam angle controller;a fast axis controller configured to receive a first command signal from the beam angle controller and configured to control a first axis component of a light pattern; and receive a second command signal from the beam angle controller, and', 'control a second axis component of the light pattern., 'a slow axis controller arranged within a closed-loop system and configured to2. The beam steering control system of claim 1 , wherein the fast axis controller is communicatively coupled to a light source and/or a motor claim 1 , wherein the fast axis controller is configured to increase and decrease a pulse rate of the light source and a rotation speed of the motor.3. The beam steering control system of claim 1 , wherein the slow axis controller is communicatively coupled to a rotatable mirror claim 1 , wherein the slow axis controller is configured to increase and decrease a rotation rate of the rotatable mirror.4. The beam steering control system of claim 1 , wherein the slow axis controller is configured to compensate for disturbances.5. The beam steering control system of claim 1 , wherein the fast axis controller is configured to compensate for rotational vibration by controlling a pulse rate of a light source.6. The beam steering control system of claim 1 , wherein the first axis component is a horizontal component of the light pattern claim 1 , wherein the second axis component is a vertical component of the light pattern.7. The beam steering ...

System and methods for automatically landing aircraft

The present invention is directed to methods of determining a vessel-relative off-deck waypoint (VRODW) location comprising the steps of providing an aircraft in flight; determining vessel range and vessel bearing relative the aircraft; and determining the VRODW location using the range and bearing measurements of the vessel. The present invention is further directed to methods of landing an aircraft on a vessel.

METHOD FOR DETECTING TOPOGRAPHICAL FEATURES OF A SURFACE AND DEVICE FOR SUCH PURPOSE

A method for detecting topographical features of a surface, in particular, of extraterrestrial surfaces, light pulses having a predefined output pulse shape being emitted to the surface with the aid of a laser light source and light pulses () reflected by the surface having an input pulse shape of the light intensity modified by the surface being detected over the transit time with the aid of a receiver (), and this at least one topographical feature of the surface being ascertained based on an analysis of the modified input pulse shapes, is provided. 1. A method for detecting topographical features of a surface , the method comprising:emitting light pulses having a predefined output pulse shape to the surface with the aid of a laser light source,detecting with the aid of a receiver light pulses reflected by the surface having an input pulse shape of a light intensity over a transit time modified by the surface; andascertaining at least one topographical feature of the surface based on an analysis of the modified input pulse shapes.2. The method as recited in wherein a hazard present on the surface is deduced by a comparison of an input pulse shape with a reference pulse shape.3. The method as recited in wherein an output pulse shape of an emitted light pulse is used as a reference pulse shape.4. The method as recited in wherein the received light pulses are digitized and digitized input pulse shapes are digitally analyzed.5. The method as recited in wherein the emitted and received light pulses are digitally stored in a buffer in real time and a digital pulse shape of the emitted and received light pulses is subsequently analyzed.6. The method as recited in wherein a topography of a predefined section of the surface is mapped with the aid of multiple light pulses analyzed with respect to the input pulse shapes.7. The method as recited in wherein a hazard map of an extraterrestrial landing target is ascertained from the analysis of digital pulse shapes.8. The method ...

THREE DIMENSIONAL IMAGING WITH INTENSITY INFORMATION

A method for operating a time-of-flight sensor system includes by an array of pixels of a time-of-flight sensor of the time-of-flight sensor system, generating signal data representative of reflected light from an environment; generating an intensity representation of an object in the environment based on the signal data representative of the reflected light from the environment; determining that the intensity representation indicates that an object in the environment includes a target object; and responsive to the determining, generating a three-dimensional representation of the environment based on the data representative of the reflected light. 1. A method for operating a time-of-flight sensor system , the method comprising:by an array of pixels of a time-of-flight sensor of the time-of-flight sensor system, generating signal data representative of reflected light from an environment;generating an intensity representation of an object in the environment based on the signal data representative of the reflected light from the environment;determining that the intensity representation indicates that an object in the environment comprises a target object; andresponsive to the determining, generating a three-dimensional representation of the environment based on the data representative of the reflected light.2. The method according to claim 1 , wherein generating the three-dimensional representation of the environment comprises demodulating the data representative of the reflected light.3. The method according to claim 1 , wherein the generation of the intensity representation of the environment uses less power than the generation of the three-dimensional representation of the environment.4. The method according to claim 1 , comprising claim 1 , by processing circuitry of the time-of-flight sensor claim 1 , determining that an object is present in the environment.5. The method according to claim 4 , comprising generating the intensity representation responsive to ...

Method for Reconstructing A Surface Using Spatially Structured Light and A Dynamic Vision Sensor

The present invention relates to a method for detecting and reconstructing a surface illuminated with spatially structured light such that the light illuminates an area of the surface from which the light is reflected back. The light includes a temporarily varying intensity in the form of successive light modulation patterns. The back-reflected light is detected by an optical sensor including a plurality of pixels. A pixel coordinate is associated to each pixel and each pixel generated a photocurrent proportional to the intensity of the light impinging on a respective pixel, computes a signal related to a photocurrent, and each pixel outputs an address-event merely when a respective signal due to the light impinging on the respective pixel increases by an amount larger than a first threshold or decreases by an amount larger than a second threshold since a last address-event from the respective pixel.

Photonics device

A method may include generating, within a device, separate and discrete wavelengths, and generating light intensity profiles based on an interaction between the separate and discrete wavelengths and a multi-wavelength diffractive optic element. The method may include detecting an object from light reflected from the object using the light intensity profiles. The light intensity profiles may include a shorter range light intensity profile and a longer range light intensity profile, each light intensity profile having different energy per solid angle patterns.

METHOD FOR EVALUATING TYPE OF DISTANCE MEASURED BY LASER RANGE FINDER AND METHOD FOR ESTIMATING POSITION OF MOBILE ROBOT BY USING SAME

A method for evaluating the distance type of the measured distance comprises a sample extracting step for extracting a plurality of preliminary samples around a predicted pose; a reference set calculating step for calculating a reference distance set corresponding to each preliminary sample through applying each preliminary sample to a reference distance calculating algorithm which is previously registered, wherein the reference distance set comprises reference distances corresponding to each of a plurality of distance types; a distance type extracting step for extracting a distance type corresponding to each of the reference distance sets based on a smallest distance error among distance errors between each reference distance which compose the reference distance set and the measured distance; and a distance type evaluating step for evaluating a distance type of the measured distance based on the distance type which is extracted in correspondence with each reference distance set. 1. A method for evaluating a distance type of a measured distance measured by a laser range finder , comprising the steps of:a sample extracting step for extracting a plurality of preliminary samples around a predicted pose;a reference set calculating step for calculating a reference distance set corresponding to each preliminary sample through applying each preliminary sample to a reference distance calculating algorithm which is previously registered, wherein the reference distance set comprises reference distances corresponding to each of a plurality of distance types;a distance type extracting step for extracting a distance type corresponding to each of the reference distance sets based on a smallest distance error among distance errors between each reference distance which compose the reference distance set and the measured distance; anda distance type evaluating step for evaluating a distance type of the measured distance based on the distance type which is extracted in correspondence ...

LASER SENSOR MODULE ARRAY FOR VEHICLE IDENTIFICATION, SPEED MONITORING AND TRAFFIC SAFETY APPLICATIONS

A laser sensor module array for vehicle identification, speed monitoring and traffic safety applications. Each of the laser sensor modules comprise a laser signal transmitting and receiving port with the array comprising a basic row of N laser sensor modules, wherein N is greater than 1 and wherein each of the N laser sensor modules in the basic row is displaced at an acute angle with respect to adjacent ones of the laser sensor modules. An additional row of N laser sensor modules may adjoin the basic row of N laser sensor modules in a parallel or acute angular relationship to corresponding ones in the basic row. 1. An array of laser sensor modules , each of said laser sensor modules comprising a laser signal transmitting and receiving port , said array comprising:a basic row of N laser sensor modules, wherein N is greater than 1 and wherein each of said N laser sensor modules in said basic row is displaced at an acute angle with respect to adjacent ones of said laser sensor modules in said basic row.2. The array of laser sensor modules of further comprising:an additional row of N laser sensor modules adjoining said basic row of N laser sensor modules and wherein each of said N laser sensor modules in said additional row is displaced at an acute angle with respect to adjacent ones of said laser sensor modules in said additional row.3. The array of laser sensor modules of wherein said N laser sensor modules in said basic row are configured in a substantially parallel relationship to corresponding ones of said N laser sensor modules in said additional row.4. The array of laser sensor modules of wherein said N laser sensor modules in said additional row are configured in an acute angle with respect to corresponding ones of said N laser sensor modules in said basic row.5. The array of laser sensor modules of wherein said N laser sensor modules in said additional row are configured in a substantially parallel and interstitial relationship with respect to said N laser ...

METHOD OF PREPARING HISTOGRAMS OF A SENSOR SIGNAL FROM AN ARRAY OF SENSORS, IN PARTICULAR PROXIMITY SENSORS, AND CORRESPONDING DEVICE

A method includes preparing a first histogram from the emission of initial optical radiation and including at least one processing iteration performed at a rate of a clock signal having an internal period equal to a sub-multiple of the optical period a sensor signal and a reference signal. Successive iterations of histogram preparation are performed so that in each iteration a time shift of the initial optical radiation is provided by a first fraction of the internal period until at least one portion of the internal period is covered to obtain an additional histogram at the conclusion of each iteration. A numerical combination of the first histogram and additional histograms is performed to obtain a final histogram having a finer time granularity than that of the first histogram. 115-. (canceled)16. A histogram generation method using a sensor array providing a sensor signal based upon optical radiation from an emitter reflected off of an object , the emitter emitting the optical radiation based upon an optical period , the method comprising:(a) generating a first histogram by processing the sensor signal and a reference signal based upon a clock signal having an internal period equal to a submultiple of the optical period;(b) iteratively performing step (a) with each iteration having the optical signal time-shifted by a first fraction of the internal period for at least one portion of the internal period to obtain at least one second histogram; and(c) combining the first histogram and the at least one second histogram to obtain a final histogram having a finer time granularity than the first histogram.17. The method of wherein step (a) further comprises successively processing the sensor signal over the entire optical period using successive time shifts with respect to an initial optical emission.18. The method of wherein step (a) further comprises a step (a1) comprising:generating a first portion of the first histogram from the initial optical emission over an ...

TIME OF FLIGHT SENSOR BINNING

A time-of-flight sensor device generates and analyzes a high-resolution depth map frame from a high-resolution image to determine a mode of operation for the time-of-flight sensor and an illuminator and to control the time-of-flight sensor and illuminator according to the mode of operation. A binned depth map frame can be created from a binned image from the time-of-flight sensor and combined with the high-resolution depth map frame to create a compensated depth map frame. 1. A method for use with a time-of-flight sensor , the method comprising:generating by at least one processing device at least one high-resolution depth map frame from at least one high-resolution image received from the time-of-flight sensor;analyzing by the at least one processing device at least one of the at least one high-resolution depth map frame and the at least one high-resolution image;determining by the at least one processing device a mode of operation having an illuminator power output level and a binning factor for at least one binned lower-resolution image;generating at the at least one processing device at least one binned lower-resolution depth map frame from the at least one binned lower-resolution image received from the time-of-flight sensor;combining information from the at least one high-resolution depth map frame with information from the at least one binned lower-resolution depth map frame to generate at least one compensated depth map frame; andcontrolling by the at least one processing device the time-of-flight sensor and at least one illuminator according to the mode of operation.2. The method of claim 1 , wherein the step of analyzing by the at least one processing device the at least one of the at least one high-resolution depth map frame and the at least one high-resolution image further comprises determining an ambient light interference level claim 1 , wherein determining by the at least one processing device a mode of operation comprising an illuminator power ...

Distance Measuring Device

The disclosure proceeds from a distance measuring device comprising at least one distance measuring unit, which is in particular suitable for a contactless distance measurement, which has at least one transmission device for emitting reference and measurement radiation and at least one sensor device for detecting reference and measurement radiation. It is proposed that, in the distance measuring device according to the disclosure, the reference radiation is embodied as at least one partial beam of divergent radiation emitted by the transmission device. 1. A distance measuring device comprising: at least one transmission device configured to emit a reference radiation and a measurement radiation, the reference radiation being embodied as at least one partial beam of divergent radiation; and', 'at least one sensor device configured to detect the reference radiation and the measurement radiation., 'at least one distance measuring unit configured for contactless distance measurement, the at least one distance measuring unit comprising2. The distance measuring device according to claim 1 , wherein:the at least one beam of divergent radiation that embodies the reference radiation has a divergence angle-dependent beam profile that is described by an intensity distribution function that drops off to edge regions; andthe reference radiation is embodied as a partial beam of the divergent radiation that is emitted in at least one of the edge regions.3. The distance measuring device according to claim 2 , wherein the reference radiation has an integrated intensity that constitutes less than 3% of a combined integrated intensity of the reference radiation and the measurement radiation.4. The distance measuring device according to claim 1 , the at least one sensor device comprising:at least one first detection region configured to detect the reference radiation and having at least one single photon avalanche diode (SPAD), the reference radiation being incident on the at least one ...

LASER RANGEFINDER AND METHOD OF MEASURING DISTANCE AND DIRECTION

A laser rangefinder includes: a MEMS mirror that changes a traveling direction of laser light; a first photodetector that reflects a portion of the laser light directed in a predetermined direction by the MEMS mirror and receives another portion of the laser light; a second photodetector that receives first reflected light that is reflection of the laser light from a target object outside an enclosure and second reflected light that is reflection of the portion of the laser light from the first photodetector; and a signal processor that calculates a distance from the laser rangefinder to the target object by subtracting, from a first distance from the laser diode to the target object calculated using the first reflected light, a second distance from the laser diode to the first photodetector calculated using the second reflected light, and calculates a direction of the target object with respect to the laser rangefinder. 1. A laser rangefinder comprising:an enclosure;a light source that is disposed inside the enclosure and emits laser light;a scanning unit that changes a traveling direction of the laser light;a first photodetector that is disposed inside the enclosure, reflects a portion of the laser light directed in a predetermined direction from the scanning unit, and receives another portion of the laser light;a second photodetector that receives first reflected light and second reflected light, the first reflected light being reflection of the laser light from a target object outside the enclosure, and the second reflected light being reflection of the portion of the laser light from the first photodetector; anda signal processor that calculates a distance from the laser rangefinder to the target object and calculates a direction of the target object with respect to the laser rangefinder, the distance being calculated by (i) calculating a first distance from the light source to the target object using the first reflected light received by the second ...

LADAR SENSOR FOR A DENSE ENVIRONMENT

A multi-ladar sensor system is proposed for operating in dense environments where many ladar sensors are transmitting and receiving burst mode light in the same space, as may be typical of an automotive application. The system makes use of several techniques to reduce mutual interference between independently operating ladar sensors. In one embodiment, the individual ladar sensors are each assigned a wavelength of operation, and an optical receive filter for blocking the light transmitted at other wavelengths, an example of wavelength division multiplexing (WDM). Each ladar sensor, or platform, may also be assigned a pulse width selected from a list, and may use a pulse width discriminator circuit to separate pulses of interest from the clutter of other transmitters. Higher level coding, involving pulse sequences and code sequence correlation, may be implemented in a system of code division multiplexing, CDM. A digital processor optimized to execute mathematical operations is described which has a hardware implemented floating point divider, allowing for real time processing of received ladar pulses, and sequences of pulses. 1. A ladar system comprising:a first ladar sensor and a second ladar sensor;said first ladar sensor havinga laser transmitter with a pulsed laser light output transmitting light at a first wavelength through a diffusing optic for illuminating a scene in a field of view of said first ladar sensor,a time zero reference circuit having a time zero reference output, said time zero reference output adapted to signal the beginning of the pulsed laser light transmission,receiving optics for collecting and conditioning the pulsed laser light reflected from said scene in the field of view,a receive filter which receives light at said first wavelength and transmits light at said first wavelength and blocks light at a second wavelength,a two dimensional array of light sensitive detectors positioned at a focal plane of said receiving optics, and receiving ...

SURVEY SYSTEM AND METHOD FOR IDENTIFYING TARGET

A survey system includes a survey device and a target. The survey device includes a main body rotatable around a vertical axis, a telescope supported by the main body and rotatable around a horizontal axis, a wide angle imaging unit having a second angle of view wider than a first angle of view of the telescope, and a target identification unit configured to identify a target image. The target image is identified based on a differential image between a first image captured by the wide angle imaging unit during an on-period with laser light emitted from an emission unit and a second image captured during an off-period in which laser light is not emitted from the emission unit. The target image is quickly identified even when the target is significantly separated in the horizontal direction from a position directly in front of the survey device. 1. A survey system comprising:a survey device; anda target to be collimated by the survey device, a main body rotatable around a vertical axis;', 'a telescope supported by the main body and rotatable around a horizontal axis;', 'an imaging unit having a second angle of view wider than a first angle of view of the telescope; and', 'a target identification unit configured to identify, based on an image captured by the imaging unit, a target image in the image,, 'wherein the survey device includesthe target includes an emission unit configured to emit laser light, andthe target identification unit is configured to identify the target image, based on a first differential image between a first image and a second image, the first image being captured by the imaging unit during an on-period in which the laser light is emitted from the emission unit, and the second image being captured by the imaging unit during an off-period in which the laser light is not emitted from the emission unit.2. The survey system according to claim 1 ,wherein the emission unit is configured to perform continuous scanning, in the vertical direction, with a ...

Systems and methods for using piezoelectric sensors to detect alignment anomaly

Systems and methods are provided for detecting an enclosure alignment anomaly. Pressure data of a set period can be obtained from one or more piezoelectric sensors. The one or more piezoelectric sensors are installed in between an enclosure and a fixture of an autonomous vehicle. The pressure data of the set period can be processed over a period of time. One or more trends can be identified based on the processed pressure data.

OPTICAL SYSTEMS FOR REMOTE SENSING RECEIVERS

Optical systems that may, for example, be used in remote sensing systems, for example in systems that implement combining laser pulse transmission in LiDAR and that include dual transmit and receive systems. A dual receiver system may include a receiver including an optical system with a relatively small aperture and wide field of view for capturing reflected light from short-range (e.g., <20 meters) objects, and a receiver that includes an optical system with a relatively large aperture and small field of view for capturing reflected light from long-range (e.g., >20 meters) objects. The optical systems may refract the reflected light to photodetectors (e.g., single photo-avalanche detectors (SPADs)) that capture the light. Light captured at the photodetectors may, for example, be used to determine range information for objects or surfaces in the environment. 1. A remote sensing system , comprising:two transmitters that transmit light through a common optical path to an object field; and a short-range optical system including a plurality of refractive lens elements that refract a portion of the light reflected from a range of 20 meters or less to a first sensor that captures the light, wherein field of view of the short-range optical system is between 45 and 65 degrees, and wherein F-number of the short-range optical system is 2.0 or less; and', 'a long-range optical system including a plurality of refractive lens elements that refract a portion of the light reflected from a range of 20 meters or more to a second sensor that captures the light, wherein field of view of the long-range optical system is 15 degrees or less, and wherein F-number of the long-range optical system is 1.2 or less., 'two receivers that detect reflections of the transmitted light received at the system through the common optical path, wherein the two receivers include2. The remote sensing system as recited in claim 1 , wherein the long-range optical system includes five refractive lens ...

REFRACTIVE BEAM STEERING DEVICE USEFUL FOR AUTOMATED VEHICLE LIDAR

An illustrative example device for steering a beam of radiation includes at least one compressible optic component including at least one lens in a compressible optic material adjacent the lens. An actuator controls an orientation of the lens by selectively applying pressure on the compressible optic material. 1. A device for steering a beam of radiation , the device comprising:at least one compressible optic component including at least one lens and a compressible optic material adjacent the at least one lens; andan actuator that controls an orientation of the at least one lens by selectively applying pressure on the compressible optic material.2. The device of claim 1 , whereinthe at least one compressible optic component comprises a plurality of compressible optic components respectively including at least one lens and compressible optic material; andthe actuator selectively controls an orientation of the lenses, respectively.3. The device of claim 2 , wherein the actuator controls the orientation of the lenses such that all of the lenses have the same orientation.4. The device of claim 2 , whereinthe actuator comprises a plurality of moveable components;each of the plurality of compressible optic components is associated with at least one of the moveable components; anda position or orientation of the movable components, respectively, controls pressure applied to the compressible optic material.5. The device of claim 4 , wherein the actuator comprises a micro-electro-mechanical (MEMs) actuator.6. The device of claim 4 , whereinthe moveable components respectively comprise moveable electrodes;the actuator comprises at least one stationary electrode; andthe moveable electrodes are moveable relative to the stationary electrode in at least a first direction and a second direction that is transverse to the first direction.7. The device of claim 1 , comprising a source of radiation situated to emit radiation through the at least one compressible optic component.8. The ...

Holographic waveguide lidar

A holographic waveguide LIDAR having a transmitter waveguide coupled to a beam deflector and a receiver waveguide coupled to a detector module. The transmitter waveguide contains an array of grating elements for diffracting a scanned laser beam into a predefined angular ranges. The receiver waveguide contains an array of grating elements for diffracting light reflected from external points within a predefined angular range towards the detector module.

OPTICAL APPARATUS, SYSTEM, AND TRANSPORT APPARATUS

A photoelectric conversion device generates a signal correlated with a difference between a first potential at a first detection node and a second potential at a second detection node, the first potential based on electrons that are generated by a first photoelectric conversion portion and collected to a first collection node in a first period, and on holes that are generated by a second photoelectric conversion portion and collected to a second collection node in a second period different from the first period, the second potential based on holes that are generated by the second photoelectric conversion portion and collected to a fourth collection node in the first period, and on electrons that are generated by the first photoelectric conversion portion and collected to a third collection node in the second period. 1. An apparatus including a photoelectric conversion device , a first photoelectric conversion portion configured to generate electrons;', 'a second photoelectric conversion portion configured to generate holes;', 'a first detection node connected to a first collection node and a second collection node, the first collection node configured to collect the electrons generated by the first photoelectric conversion portion, the second collection node configured to collect the holes generated by the second photoelectric conversion portion; and', 'a second detection node connected to a third collection node and a fourth collection node, the third collection node configured to collect the electrons generated by the first photoelectric conversion portion, the fourth collection node configured to collect the holes generated by the second photoelectric conversion portion,, 'the photoelectric conversion device comprising a first potential at the first detection node, the first potential based on electrons that are generated by the first photoelectric conversion portion and collected to the first collection node in a first period, and based on holes that are ...

WAVEFORM RECONSTRUCTION IN A TIME-OF-FLIGHT SENSOR

A time-of-flight (TOF) sensor device is configured to perform classification analytics on a waveform signal representing a reflected light pulse, and to classify an object from which the light pulse was received based on characteristic properties of the reflected pulse. The TOF sensor device can compare the reflected pulse waveform with stored characteristic waveform profiles indicative of different types of objects or atmospheric particulates, including but not limited to snow, aerosol, water, fog, or mist. Some embodiments of TOF sensor device can also detect excessive levels of mist or suspended particulates that may reduce the detection accuracy of the sensor. To this end, such embodiments project focused light beams according to a defined pattern, and compare the reflected pattern with the defined pattern to determine a degree of pattern distortion attributable to the presence of mist. 1. An imaging device , comprising:a memory that stores executable components; an illumination component configured to emit a light pulse toward a viewing field;', 'a photo-receiver configured to generate an electrical output proportional to an intensity of light incident on a surface of the photo-receiver;', 'a pixel array component configured to generate waveform data corresponding to a reflected light pulse received by the photo-receiver based on the electrical output;', 'a waveform analysis component configured to perform a comparison of the waveform data with signature profile data that defines characteristic waveform signatures corresponding to respective object classifications, and generate classification data assigning an object classification, of the object classifications, to an object corresponding to the reflected light pulse based on a result of the comparison; and', 'a hazard analysis and decision component configured to generate an output signal based on the object classification., 'a processor, operatively coupled to the memory, that executes the executable ...

ROTARY TYPE DISTANCE SENSING DEVICE

The present invention discloses a rotary type distance sensing device is disclosed, wherein the rotary type distance sensing device comprises a driver to drive the linking structure to move and to enable the rotating mount to rotate; a control module fixed to rotating mount transmitting a measurement signal through a signal transmitter and receiving the reflected measurement signal through a signal receiver to obtain an environmental status data ; the control module analyzing the reflected measurement signal and transmitting the reflected measurement signal though a wireless transmitter, or the control module directly transmitting the reflected measurement signal along with data regarding the transmitted measurement signal through the wireless transmitter, thereby preventing a signal wire from being wound too tightly and tangled, and also preventing a slip ring structure from being worn out after long term use, and thus assuring the signal transmission quality. 1. A rotary type distance sensing device , comprising:a fixing base comprising a via and a positioning ring disposed coaxially, wherein the positioning ring is disposed around an outer rim of the via;a rotating mount pivotally connected to the fixing base;a linking structure driven by a driver to move and to enable the rotating mount to rotate;a control module disposed on the rotating mount, wherein the control module comprises at least one signal transmitter for transmitting a measurement signal and at least one signal receiver for receiving the reflected measurement signal to obtain an environmental status data and to calculate a distance.2. The rotary type distance sensing device as claimed in claim 1 , wherein the control module is disposed with a wireless transmitter at the bottom thereof; the wireless transmitter goes through the via of the fixing base to transmit the reflected measurement signal received by the signal transmitter to a wireless receiver disposed in the via.3. The rotary type distance ...