Intelligent learning infrared remote control coded lock

The invention relates to an intelligent learning infrared remote control coded lock which comprises a lock and a key and solves the problem that one key can not be used for unlocking a plurality of locks in the traditional coded lock. A first singlechip of the lock is connected with a mechanical lock through a mechanical lock drive circuit, the first singlechip and a first infrared receiving module are connected with an unlocking key and a locking key, a second singlechip and a second infrared transmitting module of the key are connected with the unlocking key and the locking key, the first singlechip is also connected with a first infrared transmitting module and a password setting key, the second singlechip is connected with a second infrared receiving module and a password learning key, when the first singlechip detects an infrared signal, the received signal is compared with an unlocking password in a data storage, if the received signal is consistent with the unlocking password, when ...

CASE environment architecture based on tool bus

Welding platform for laser precision welding

The invention provides a welding platform for laser precision welding. The welding platform is characterized in that a machine frame part, an adjusting mechanism and a moving mechanism are included, the machine frame part has a supporting effect, the adjusting mechanism and the moving mechanism are placed on the machine frame part integrally, the adjusting mechanism is used for adjusting the position of a laser head so that the laser head can be in the best welding position, and the moving mechanism achieves automatic precision locating of a clamp and guarantees continuity. The welding platform for laser precision welding is used for laser precision welding and is matched with the welding clamp for use, a welding point position is accurately located, continuous automatic welding is achieved, and welding efficiency is improved. The welding platform has the advantages that through the welding platform, laser welding is convenient, continuous welding can be achieved, production efficiency ...

Intelligent learning infrared remote control coded lock

The invention relates to an intelligent learning infrared remote control coded lock which comprises a lock and a key and solves the problem that one key can not be used for unlocking a plurality of locks in the traditional coded lock. A first singlechip of the lock is connected with a mechanical lock through a mechanical lock drive circuit, the first singlechip and a first infrared receiving module are connected with an unlocking key and a locking key, a second singlechip and a second infrared transmitting module of the key are connected with the unlocking key and the locking key, the first singlechip is also connected with a first infrared transmitting module and a password setting key, the second singlechip is connected with a second infrared receiving module and a password learning key, when the first singlechip detects an infrared signal, the received signal is compared with an unlocking password in a data storage, if the received signal is consistent with the unlocking password, when ...

On-line detecting equipment and method of welding quality for noble-metal composite tape

The invention discloses on-line detecting equipment and method of the welding quality for a noble-metal composite tape. The detecting equipment comprises an industrial CCD (Charge Coupled Device) digital camera, an industrial lens, a 1394 card, a 1394 data transmission line, a camera bracket and a computer, wherein the industrial lens is installed on the industrial CCD digital camera, the industrial CCD digital camera is installed on the camera bracket, the 1394 card is installed on the computer, and the industrial CCD digital camera is connected with the computer through the 1394 data transmission line. The on-line detecting equipment and method of the welding quality for the noble-metal composite tape can realize the advantages of automated detection, labor intensity reduction and production efficiency improvement based on machine vision.

FPGA (Field Programmable Gate Array)-based laser caliper measurement system

The invention discloses an FPGA (Field Programmable Gate Array) based laser caliper measurement system, which is used for detecting cable diameter in real time. The system comprises an optical device, a photoelectric sensor, an amplification unit, a waveform processing unit, an analog-to-digital conversion unit, an FPGA processor and a display unit, wherein the photoelectric sensor acquires an optical image of a cable to be detected in a light path of the optical device, and the optical image is converted into an analog electric signal; the analog electric signal is converted into a digital signal after amplification, waveform processing and analog-to-digital conversion, and is transmitted to the FPGA processor; diameter data of the cable to be detected is displayed in the display unit; the FPGA processor comprises a drive module, a signal extraction module and a data display module, the signal extraction module extracts and converts the digital signal output by the analog-to-digital conversion ...

Compound stabilizer used for lactic dehydrogenase kit

The invention discloses a compound stabilizer used for a lactic dehydrogenase kit. The compound stabilizer comprises tris hydroxy methyl aminomethan, edetic acid disodium, mycose, beta-cyclodextrin, glycerol, polyvinylpyrrolidone and liquid biological preservatives Proclin300. By means of the mode, the compound stabilizer used for the lactic dehydrogenase kit comprises buffer agents, chelating agents, saccharides, surface active agents, the organic solvents and corrosion removers. After the compound stabilizer is added into the lactic dehydrogenase measurement kit, the stability of testing results can be obviously improved, and the retention time of the lactic dehydrogenase measurement kit can be effectively prolonged.

Thin type standing wave rotary ultrasonic motor

The invention belongs to a thin type standing wave rotary ultrasonic motor, which comprises an annular stator provided with a central hole and racks, piezoelectric ceramic plates arranged on the upper ring surface and the lower ring surface of the stator, a combined type rotor for driving a driving shaft, a disk spring positioned between an upper rotor and a lower rotor, a connecting positioning sleeve and a machine base. The motor adopts a threaded connecting positioning sleeve to connect the upper rotor, the lower rotor, the stator and the disk spring into a whole body, transmits power through the pressure contact cooperation of the outer circumferential surface of the stator and the inner ring surface of the stator, adopts the outer bending mode of a toroidal surface of the stator to improve the excited sensitivity, and can achieve the rotation of the motor only by using bending standing waves excited by single-phase alternating voltage; and thus the motor and a driving circuit thereof ...

Automatic track seeking system of headlight of locomotive

An automatic tracing system of the headlight of locomotive for the lighting on curved railway is composed of a computer for calculating the angle information of each site on railway according to their GPS data and storing the angle information in a table, and a microprocessor for calculating the distance of current site according to received current GPS data, searching the angle information of current site from said table, and calculating the drive pulse information of step motor.

Ultrasound wave tiny segregator

The invention discloses an ultrasonic micro-separator that consists of an ultrasonic energy converter (4), a reflecting layer (1), a silicon chip (3), an inflow mouth (5), a turbidity current mouth (6) and a clean current mouth (7). One end of a separating cavity (2) that has a rectangular parallelepiped shape is communicated with the inflow mouth (5) and the other end is communicated with the turbidity current mouth (6) and the clean current mouth (7). A plurality of ultrasonic energy converters (4) that have equal impedance and a same polarization direction are installed on the silicon chip (3) in a direction that is far from the reflecting layer (1). The arrangement trend of the ultrasonic energy converter (4) is vertical with the inflow mouth (5) and connected with the turbidity current mouth (6). The invention solves the problems of separation impact by advanced settlement of particulates, poor separation effect caused by mixing of turbidity current and clean current and deficiency ...

Tomography method for lamb waves within any convex region

The invention discloses a tomography method for lamb waves within any convex region. The method is characterized in that a concave region of a thin plate is scanned in a projecting way by arranging energy converters along the boundary of a convex region at equal corner distances. The whole system comprises a module to be detected, a data acquisition module, a computer processing module, a wave filtering module, a back projection module and a display module, wherein the plurality of energy converters are arranged at the boundary of a work piece to be detected; under the control of a control system, each energy converter can send out the lamb waves in turns, and the other energy converters receive travel time information of the lamb waves and convert the travel time information into projection data of corresponding corners; the computer processing module comprises an offset guiding module which can be used for carrying out offset guiding calculation about the corners and fan angles on projection ...

Sheets type ceramic dielectric capacitor automatic assembling welding interlocking machine

The invention discloses an automatic assembly-welding interlocking machine of chip ceramic capacitors, and is characterized in that a product assembly device (2), a lead conveying device (3), a lead tin-printed device (5), a lead feeding device (6), a fixture conveying belt(7) and a product discharging device(8) are mounted on a frame. The lead feeding device (6) is arranged on one side of the lead tin-printed device (5), and the product assembly device (2) is arranged on the other side of the lead tin-printed device (5). One suite of the lead conveying device (3) is arranged between the leadfeeding device (6) and the lead tin-printed device (5), and the other suite of the lead conveying device is arranged between the lead tin-printed device (5) and the product assembly device (2). One end of the fixture conveying belt (7) is connected with the product assembly device (2), and the other end of the fixture conveying belt(7) is connected with the product discharging device (8). The airsource ...

Campus smart card based bicycle parking system and operation method thereof

The invention discloses a campus smart card based bicycle parking system which is characterized in that the campus smart card based bicycle parking system is provided with an installation base plate, a control box and one or multiple motor boxes are installed on the installation base plate; the control box is provided with a card reader and a display screen area; each motor box comprises a box body, a lock bar, a stepping motor, a lead screw and a lead screw slider; the stepping motor, the lead screw and the lead screw slider are disposed in the box body, the lead screw slider is disposed on the lead screw that is connected with the lock bar, the stepping motor controls the lead screw slider through the lead screw so as to control the lock bar; a lock slot bar is disposed on the other side of the box body and corresponds to the lock bar; a control system for controlling work of the stepping motor is arranged in the control box. The campus smart card based bicycle parking system is applicable ...

An automatic overlapping machine for rectangular porcelain chip

The invention discloses a rectangular ceramic chip automatic laminated machine, which is characterized in that: an underside face plate (2) and an upper surface plate (3) are separately arranged on a stander (1); a running cylinder (10) is arranged on the upper surface plate (3); a running cylinder support (20) is fixed with a cylinder bracket (19); the running cylinder is connected with a floating joint (18); the floating joint is connected with a sliding silo (5); the sliding silo slides on a linear guide (14); a slide block (16) and a guide block (15) are arranged on the linear guide; a buffer (17) determines a motion position of the sliding silo; the buffer is fixed on a buffer bracket (13); the buffer bracket is fixed on a buffer support (12); the running cylinder drives the sliding silo to move right and left; an unloading device (8) is arranged on the upper surface plate (3); a disk vibration hopper (7) and a linear vibration hopper (4) are separately arranged on the underside face ...

Rotary and linear dual-purpose ultrasonic motor

The invention discloses a rotary and linear dual-purpose ultrasonic motor, which comprises a square plate body type stator with a rack shaped center hole, a combined rotor positioned in the center hole, and an annular piezoelectric ceramic plate arranged on the bottom surface of the stator. The ceramic plate is divided into four electrode areas in equal radian, two center-symmetric electrode areaswith opposite polarities are set into a group, and the middle parts of four sides of the bottom surface of the stator are provided with a wedge-shaped drive leg respectively; when two groups of electrodes are supplied with alternating voltage with given frequency, the motor rotates; when the alternating voltage with corresponding frequency is alternately and separately input to one group of electrodes, the motor performs linear motions with two mutually vertical freedom degrees respectively; therefore, the motor has the characteristics of various functions, strong combination property, largeoutput ...

Method for producing propylene glycol mono-methyl ether with energy conservation

The invention relates to a method for producing propylene glycol mono-methyl ether with energy conservation, which comprises the following steps: mixing propylene epoxide, methanol and a catalyst (sodium methoxide or potassium methoxide) in a preset ratio in a static mixer; preheating to a set temperature with vapor generated by absorbing reaction heat in a preheater; heating with foreign vapor with the temperature higher than 160DEG C in a heater for pre-reaction; continuously reacting materials in a tube pass of a pressureproof tube type heat exchanger; vaporizing hot water in a shell pass with surplus heat released in the reaction; and performing the subsequent routine refining process of separation and purification on materials on the outlet of the tube pass of the tube type heat exchanger to produce the propylene glycol mono-methyl ether. The method can timely remove heat released in etherification, the heat is converted to a heat source for preheating the raw materials, and the method ...

Method for optimizing coverage of wireless sensor network

The invention discloses a novel method for optimizing the coverage of a wireless sensor network. The novel method for optimizing the coverage of the wireless sensor network is characterized by being based on a cellular automata (CA) theory and a genetic algorithm (GA). The core ideology of the algorithm is that all the devices inside the nodes of the sensor are stopped when not in need and started when in need in a condition that the required coverage rate is reached. Therefore, the sensor can be in a low power consumption mode correspondingly in time, the life cycle of the whole network is prolonged, and the total energy consumption is reduced.

Sheets type ceramic dielectric capacitor automatic assembling welding interlocking machine

The invention discloses an automatic assembly-welding interlocking machine of chip ceramic capacitors, and is characterized in that a product assembly device (2), a lead conveying device (3), a lead tin-printed device (5), a lead feeding device (6), a fixture conveying belt(7) and a product discharging device(8) are mounted on a frame. The lead feeding device (6) is arranged on one side of the lead tin-printed device (5), and the product assembly device (2) is arranged on the other side of the lead tin-printed device (5). One suite of the lead conveying device (3) is arranged between the lead feeding device (6) and the lead tin-printed device (5), and the other suite of the lead conveying device is arranged between the lead tin-printed device (5) and the product assembly device (2). One end of the fixture conveying belt (7) is connected with the product assembly device (2), and the other end of the fixture conveying belt(7) is connected with the product discharging device (8). The air source ...

Method for designing vulcanization furnace based on heat flow coupling analysis technique

The invention relates to the technical field of vulcanization furnace design methods, particularly relating to a method for designing a vulcanization furnace based on a heat flow coupling analysis technique. The method comprises the following steps: 1, establishing a vulcanization furnace thermal equilibrium model; 2, carrying out field thermotechnical test on the existing old furnace; 3, establishing an old furnace thermal equilibrium sheet according to the data obtained through field thermotechnical test; 4, establishing a three-dimensional model for the old furnace based on ANSYS simulation software; 5, carrying out heat flow coupling analysis based on a CFD (computational fluid dynamics) module of the ANSYS simulation software, then designing a vulcanization furnace; and 6, carrying out performance evaluation on the designed vulcanization furnace. According to the design method provided by the invention, the specific data is subjected to independent accounting according to formulas, ...

Roller of tubular strander

The invention relates to the technical field of tubular strander equipment, in particular to a roller of a tubular strander. The roller of the tubular strander comprises a roller body, wherein a plurality of through holes are formed on the roller body and uniformly distributed on the outer wall of the roller body; a noise reducing structure is arranged on the inner tubular wall of the roller body on the two sides of every through hole, and is a frame-shaped body which consists of two axial ribs and two vertical ribs; the vertical ribs are arranged on the inner tubular wall on the two sides of the through hole along the axis direction of the roller body; and transverse steel bars are arranged along a direction which is vertical to the axis of the roller body, and are connected with the ends of the vertical ribs. Through the combination of the vertical ribs arranged along the axis direction of the roller and the transverse steel bars arranged in the direction which is vertical to the vertical ...

Composite stabilizer for aspartate aminotransferase assay kit

The invention discloses a composite stabilizer for an aspartate aminotransferase assay kit. The composite stabilizer comprises trihydroxymethyl aminomethane, disodium ethylenediaminetetraacetate, trehalose, gelatin, propylene glycol, a surfactant Brij-35 and a liquid biological preservative Proclin300. Through the technical scheme, the composite stabilizer for the aspartate aminotransferase assay kit comprises the components of a buffer solution, a stabilizer, a chelating agent, an organic solvent, a surfactant and a preservative and the like. After the composite stabilizer is added into the aspartate aminotransferase assay kit in a certain volume ratio, not only the accuracy of an assay result can be ensured, but also the stability thereof is higher, and the expiry date after the aspartate aminotransferase assay kit is opened can be effectively prolonged.

Dissimilar material connecting method of nickel titanium shape memory alloy and copper alloy and clamp thereof

The invention relates to a laser welding method of nickel titanium shape memory alloy and copper alloy in the technical field of materials, machines, electrical engineering and the like, belongs to the technical field of dissimilar material connecting. According to the method, the functions of a sensor, an executor and the like are achieved through the high conductivity of copper and the superelasticity or shape memory character of nickel titanium alloy. The method comprises the process steps that after the to-be-welded face of a nickel titanium shape memory alloy and copper alloy wire or belt or plate is polished and washed, the lap-joint or butt-joint mode is adopted, a designed clamp is utilized, the nickel titanium shape memory alloy part or the connecting position is heated through a Nd:YAG laser device, and a high-strength, defect-free and low-impedance dissimilar material welding connector can be obtained by adjusting laser and heat treatment process parameters.

Bidirectional energy transfer circuit

The invention discloses a bidirectional energy transfer circuit, solving the problems of inversion and charging which are realized by two independent circuits, single direction energy transfer, low voltage transferring efficiency and large filter circuit size in the existing direct current supply. The direct current supply is connected with a front axle which is connected with a primary side of a high-frequency transformer and consists of four transistors; a secondary side of the high-frequency transformer is connected with a rear axle which consists of eight transistors and is connected with a load through a first and a second commutation circuit; the load is connected with a commercial power input end through a third commutation circuit; output and input of a rectifier bridge are respectively connected with the secondary side of the high-frequency transformer and with the load through the first commutation circuit; a controller is respectively connected with the commutation circuits and ...

Bidirectional energy transfer circuit

The invention discloses a bidirectional energy transfer circuit, solving the problems of inversion and charging which are realized by two independent circuits, single direction energy transfer, low voltage transferring efficiency and large filter circuit size in the existing direct current supply. The direct current supply is connected with a front axle which is connected with a primary side of a high-frequency transformer and consists of four transistors; a secondary side of the high-frequency transformer is connected with a rear axle which consists of eight transistors and is connected with a load through a first and a second commutation circuit; the load is connected with a commercial power input end through a third commutation circuit; output and input of a rectifier bridge are respectively connected with the rear axle through the first commutation circuit; a controller is respectively connected with the commutation circuits and a drive circuit; output of the drive circuit is respectively ...

Rotary and linear dual-purpose ultrasonic motor

The invention discloses a rotary and linear dual-purpose ultrasonic motor, which comprises a square plate body type stator with a rack shaped center hole, a combined rotor positioned in the center hole, and an annular piezoelectric ceramic plate arranged on the bottom surface of the stator. The ceramic plate is divided into four electrode areas in equal radian, two center-symmetric electrode areas with opposite polarities are set into a group, and the middle parts of four sides of the bottom surface of the stator are provided with a wedge-shaped drive leg respectively; when two groups of electrodes are supplied with alternating voltage with given frequency, the motor rotates; when the alternating voltage with corresponding frequency is alternately and separately input to one group of electrodes, the motor performs linear motions with two mutually vertical freedom degrees respectively; therefore, the motor has the characteristics of various functions, strong combination property, large output ...

FPGA (Field Programmable Gate Array) based laser diameter measuring method

The invention discloses an FPGA (Field Programmable Gate Array) based laser diameter measuring method used for detecting the diameter of a cable in real time. The method comprises the following steps of: (1) generating a parallel light, traversing the cable to be measured in the parallel light; (2) partially ejecting the generated parallel light after the parallel light is shielded by the cable to be measured; (3) converging the partially ejected parallel light and converting the light into an analog electric signal by virtue of a photoelectric sensor; (4) receiving and amplifying the analog electric signal; (5) receiving the amplified analog electric signal and carrying out wave treatment; (6) receiving the analog signal subjected to the wave treatment and converting the analog signal into a digital signal; (7) receiving the digital signal and carrying out operation processing; and (8) receiving the digital signal subjected to the operation processing and displaying the digital signal.

Pose estimation method and device of camera equipment, electronic equipment and storage medium

The invention discloses a pose estimation method and device for camera equipment, electronic equipment and a storage medium, and relates to the technical field of electrical digital data processing.The method comprises the steps that image coordinate values and space coordinate values corresponding to multiple entity reference objects are obtained, and a matrix equation set is constructed based on the image coordinate values and the space coordinate values, the matrix equation set represents a mapping relation between image coordinate values and space coordinate values; acquiring a coefficient matrix based on the matrix equation set; decomposing the coefficient matrix based on a singular value decomposition method to determine a projection matrix of the camera device; decomposing an external parameter matrix in the projection matrix into a rotation matrix and a translation vector; and calculating an Euler angle based on matrix elements in the rotation matrix, and determining the Euler angle ...

Roll welding device for producing noble metal composite band

The invention discloses a roll welding device for producing a noble metal composite band. The roll welding device comprises a coiled material feeding mechanism, a leveling mechanism, a composite band feeding disk, a positioning mould, a roll welding wheel, a welding cylinder, a traction mechanism, a coiled material discharging mechanism, a welding power supply and an IPC controller, wherein the coiled material feeding mechanism, the leveling mechanism, the composite band feeding disk, the positioning mould, the roll welding wheel, the traction mechanism and the coiled material discharging mechanism are arranged in order; the welding power supply is connected with the IPC controller; and the IPC controller is connected with the welding cylinder. The roll welding device for producing the noble metal composite band has the advantages of high continuous welding speed, high welding quality and high production efficiency.

An automatic overlapping machine for rectangular porcelain chip

The invention discloses a rectangular ceramic chip automatic laminated machine, which is characterized in that: an underside face plate (2) and an upper surface plate (3) are separately arranged on astander (1); a running cylinder (10) is arranged on the upper surface plate (3); a running cylinder support (20) is fixed with a cylinder bracket (19); the running cylinder is connected with a floating joint (18); the floating joint is connected with a sliding silo (5); the sliding silo slides on a linear guide (14); a slide block (16) and a guide block (15) are arranged on the linear guide; a buffer (17) determines a motion position of the sliding silo; the buffer is fixed on a buffer bracket (13); the buffer bracket is fixed on a buffer support (12); the running cylinder drives the sliding silo to move right and left; an unloading device (8) is arranged on the upper surface plate (3); a disk vibration hopper (7) and a linear vibration hopper (4) are separately arranged on the underside face ...

Mining explosion-proof type anti-collision radar system

The invention discloses an explosion-proof anti-collision radar system for mining. The anti-collision radar system is characterized by comprising an ultrasonic sensor (1), a control circuit (2) and a warning device (6); the control circuit consists of an MCU module (3) and an RS485 module (4) and a CAN bus module (5); the ultrasonic sensor and the warning device are connected with the control circuit which is composed of the RS485 module, the MCU module and the CAN bus module; the ultrasonic sensor is arranged on a bumper at the tail of an engineering truck with the included angle alpha between the ultrasonic sensor and the vertical direction of the bumper being 3-5 degrees; the distance information measured by the ultrasonic sensor is transmitted to a radar controller by an RS485 bus, and the radar controller analyzes and processes data from the sensor, comprehensively processes the generated barrier distance and azimuth information, and transmits the information to the warning device ...

Thin type standing wave rotary ultrasonic motor

The invention belongs to a thin type standing wave rotary ultrasonic motor, which comprises an annular stator provided with a central hole and racks, piezoelectric ceramic plates arranged on the upper ring surface and the lower ring surface of the stator, a combined type rotor for driving a driving shaft, a disk spring positioned between an upper rotor and a lower rotor, a connecting positioning sleeve and a machine base. The motor adopts a threaded connecting positioning sleeve to connect the upper rotor, the lower rotor, the stator and the disk spring into a whole body, transmits power through the pressure contact cooperation of the outer circumferential surface of the stator and the inner ring surface of the stator, adopts the outer bending mode of a toroidal surface of the stator to improve the excited sensitivity, and can achieve the rotation of the motor only by using bending standing waves excited by single-phase alternating voltage; and thus the motor and a driving circuit thereof ...