Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 24. Отображено 24.
16-07-2014 дата публикации

Three-dimensional angle measuring system based on beam aberration

Номер: CN103925890A
Принадлежит:

The invention relates to a three-dimensional angle measuring system based on beam aberration. The three-dimensional angle measuring system comprises a fixed end and a movable end, wherein the fixed end is connected to a computer or an image processing circuit on the basis of an auto-collimation system device, and comprises a laser light source, a beam expander, a beam splitter prism and a CCD detector, a square hole diaphragm is arranged between the beam splitter prism and the beam expander, the movable end is in linkage with an object to be measured and comprises a cylindrical lens assembly and a tetrahedral reflector, the CCD detector, the beam splitter prism, the cylindrical lens assembly and the tetrahedral reflector are located on a first optical axis, the laser light source, the beam expander, the square hole diaphragm and the beam splitter prism are located on a second optical axis, and the first optical axis is perpendicular to the second optical axis. According to the three-dimensional ...

Подробнее
09-05-2023 дата публикации

Multi-parameter fuzzy constraint remote sensing satellite orbit design method and system

Номер: CN116090165A
Принадлежит:

The invention provides a multi-parameter fuzzy constraint remote sensing satellite orbit design method and system. The method comprises the following steps: receiving input orbit boundary constraint and design constraint; calculating series information of a corresponding orbit according to the orbit height range, the pixel resolution, the revisit constraint and the splicing frequency of the sun synchronous regression circular orbit, and calculating and generating alternative orbit parameters; according to the alternative orbit parameters, related information which can be directly screened by subsequent design constraints is calculated and generated; respectively screening the directly screened related information through the imaging angle constraint, the breadth constraint and the integral time constraint; the orbits are screened through the latitude constraints, and results conforming to the constraints and results not conforming to the constraints are labeled respectively; according to ...

Подробнее
21-07-2023 дата публикации

Key load node identification method and system considering reactive voltage coupling degree

Номер: CN116470512A
Принадлежит:

The invention discloses a key load node identification method and system considering reactive voltage coupling degree, and the method comprises the steps: building a power system weighted undirected graph according to a power system network frame topological structure and initial power flow data, solving the minimum side weight cumulative sum between nodes, obtaining the electrical connection degree between the nodes, and carrying out the recognition of the key load node. And then the reactive voltage coupling degree between the nodes is obtained based on the power flow matrix, weighted summation is carried out on the reactive voltage coupling degree between the nodes and the electrical connection degree between the nodes to obtain a node importance degree evaluation result, and a key load node is identified according to the node importance degree evaluation result. Line impedance, active power and reactive voltage coupling degree are comprehensively considered, and the problem that the ...

Подробнее
04-08-2023 дата публикации

Distributed photovoltaic partitioning and grouping equivalent aggregation method and system

Номер: CN116545016A
Принадлежит:

The invention relates to the technical field of distributed photovoltaic power generation, and discloses a distributed photovoltaic partitioning and clustering equivalent aggregation method and system, and the method comprises the steps: carrying out the partitioning of distributed photovoltaic through calculating the electrical distance from a distributed photovoltaic grid-connected point to a hub node, carrying out the clustering analysis of the distributed photovoltaic in each partition, and carrying out the clustering analysis of the distributed photovoltaic in each partition; obtaining a plurality of distributed photovoltaic groups corresponding to all the partitions, and determining reactive voltage interaction influence degree index values among the distributed photovoltaic groups according to the reactive voltage relationship among the nodes, determining the number and equivalent parameters of equivalent aggregation models required for constructing each distributed photovoltaic ...

Подробнее
25-08-2023 дата публикации

Fire-fighting control system for battery cabinet of electrochemical energy storage station

Номер: CN116637316A
Принадлежит:

The invention discloses a fire control system for a battery cabinet of an electrochemical energy storage station, and relates to the technical field of fire safety. According to the fire-fighting control system for the battery cabinet of the electrochemical energy storage station, the battery cabinet is divided into a plurality of independent sub-battery cabins, so that the problem that all battery modules are damaged due to ignition of one battery module when all the battery modules are stacked in the same space is solved; a plurality of combustible gas sensor modules are used for judging whether combustible gas exists in the sub-battery cabins or not, a plurality of smoke sensing probes are used for judging whether smoke exists in the sub-battery cabins or not, the problem of false alarm is avoided, when the combustible gas exists in the sub-battery cabins, a gas abnormity alarm is given out, and when smoke exists in the battery cabins, an alarm is given out. And when short-circuit signals ...

Подробнее
23-06-2023 дата публикации

Electrochemical energy storage station battery liquid heat dissipation device

Номер: CN116315253A
Принадлежит:

The invention relates to the technical field of electrochemical energy storage station batteries, in particular to an electrochemical energy storage station battery liquid cooling device which comprises a battery cooling supporting plate, two heat exchange plates, two high-density tooth cooling fins, a liquid pump and a controller. A liquid inlet pipeline, a liquid outlet pipeline and a first temperature sensor are arranged in the battery cooling supporting plate; the two heat exchange plates are respectively arranged on two sides of the battery cooling support plate, cooling pipelines are arranged on the heat exchange plates, two ports of the cooling pipelines are respectively connected with a liquid inlet pipeline and a liquid outlet pipeline, and the cooling pipelines, the liquid inlet pipeline and the liquid outlet pipeline form a cooling loop; the high-density tooth radiating fins are tightly propped against the heat exchange plate; the liquid pump is connected to the cooling loop; ...

Подробнее
23-06-2023 дата публикации

Setting value document verification method and device, equipment and medium

Номер: CN116318719A
Принадлежит:

The invention discloses a setting value document verification method and device, equipment and a medium. The method comprises the steps that when a power system setting value document is received, a first digital digest corresponding to an original text in the power system setting value document is calculated; encrypting the first digital digest by using a first private key to obtain a first digital signature and obtain a corresponding signature timestamp; combining the first digital digest with the signature timestamp, and encrypting by using a second private key to obtain a second digital signature; generating an electronic document by adopting the original text, the first digital signature, the signature timestamp and the second digital signature, and transmitting the electronic document to the target power system; when the target power system receives the electronic document, the electronic document is decrypted, and whether the electronic document is tampered or not is judged; and ...

Подробнее
23-05-2023 дата публикации

Aviation hyperspectral image radiation uniformity correction method

Номер: CN116152097A
Принадлежит:

The invention relates to an aviation hyperspectral image radiation uniformity correction method, which comprises the following steps of S1, acquiring an aviation hyperspectral image, and dividing the image to be corrected into a water body and a land surface ground feature; s2, solving a regression coefficient by adopting least square regression, and carrying out band-by-band solar flare correction; s3, calculating an observation angle and an azimuth angle corresponding to each scanning line row by row, establishing a binary quartic experience correction model, and performing normalization correction one by one; s4, calculating to obtain a corrected land radiation brightness value; s5, calculating to obtain a corrected water body radiance value; and S6, repeating the steps S1 to S5, completing image uniformity correction of the multiple air strips, and obtaining seamless mosaic data of the multiple air strips. Compared with the prior art, the non-uniform phenomenon of radiation brightness ...

Подробнее
07-07-2023 дата публикации

Load model composition information determination method and device, equipment and storage medium

Номер: CN116401890A
Принадлежит:

The invention discloses a load model composition information determination method and device, equipment and a storage medium, which are used for solving the technical problem of low accuracy of an existing load model composition analysis result. The method comprises the following steps: acquiring node data of an alternating current system, and establishing a power flow equation matrix of the alternating current system according to the node data; a target area is determined in the alternating current system, hub nodes of the target area and a sub-area corresponding to each hub node are obtained, and each sub-area comprises a plurality of nodes; calculating the reactive voltage influence degree of each node in the sub-region relative to the hub node according to the power flow equation matrix; determining an initial measurement node in the sub-region according to the reactive voltage influence degree; calculating a sensitivity index of each initial measurement node; and determining a target ...

Подробнее
26-05-2023 дата публикации

Load parameter identification method based on disturbance sample generation and parallel learning

Номер: CN116169674A
Принадлежит:

The invention relates to the technical field of load data processing, and discloses a load parameter identification method based on disturbance sample generation and parallel learning, which comprises the following steps: acquiring load parameters of load nodes of a power grid, generating load disturbance data for the load parameters based on an adversarial network, and forming a load parameter sample set; the method comprises the following steps: respectively calculating static load model parameters and motor load model parameters according to a power grid load type and a load parameter sample set, carrying out weighted calculation on the static load model parameters and the motor load model parameters according to a load composition proportion, constructing a comprehensive load model, converting the comprehensive load model into a state equation, and constructing a parallel learning model; and the state variables of the state equation are input into the trained parallel learning model ...

Подробнее
25-07-2023 дата публикации

Typical load composition screening method and system

Номер: CN116484182A
Принадлежит:

The invention discloses a typical load composition screening method and system, and the method comprises the steps: carrying out the clustering of daily load curves of all residential users in a regional power grid, extracting the load curve data of a preset proportion of residential users in each class, and carrying out the refined measurement; based on local measurement information, a mean value estimation method is adopted to calculate a relative error and a confidence interval for measuring a total load mean value by sampling a load mean value, so that a typical load composition is screened out, and the calculation complexity and the equipment installation cost can be reduced on the basis of ensuring the identification precision; the technical problems that when an existing intrusive load measurement identification load composition mode faces massive power load users, the calculation complexity is high, load measurement equipment needs to be installed for all the users, and the installation ...

Подробнее
21-07-2023 дата публикации

Distribution network remote-controllable main ring automatic switch defect verification method and system

Номер: CN116470648A
Принадлежит:

The invention provides a remote-control main ring automatic switch defect checking method and system for a distribution network. The method comprises the following steps: acquiring a ring network point switch and a remote-control main ring automatic switch on a to-be-checked line according to a topological structure of the line; performing remote control closing operation on the ring network point switch; remote control opening operation and remote control closing operation are carried out on any switch in the main ring automatic switches once, and meanwhile, after the remote control operation on each main ring automatic switch is completed, the closing position of the main ring automatic switch on the line to be verified is verified; remote control sub-operation is carried out on all ring network point switches; and automatically listing the switches which fail in remote control and reporting the information of the defective switches. According to the invention, automatic switching-on ...

Подробнее
09-06-2023 дата публикации

Image internal geometric error correction method and device based on yaw imaging

Номер: CN116245742A
Принадлежит:

The invention provides an image internal geometric error correction method and device based on yaw imaging, and the method comprises the steps: obtaining a remote sensing image after a satellite platform carries out 90-degree maneuvering at a yaw angle; detecting straight lines in the image through a straight line detection method, and obtaining pixel coordinates of a starting point and an ending point of each straight line; all straight lines in the yaw image obtained by each detector are detected in the yaw image, coordinates of a starting point and an ending point of each straight line are obtained, and the angle of each straight line is calculated through the coordinates; fitting the angles of all straight lines of each detector to obtain an optimal straight line angle value beta of a yaw image of the detector, and obtaining an angle difference beta'between an actual position and a theoretical position of detector splicing; and according to the angle error of detector splicing, taking ...

Подробнее
25-04-2023 дата публикации

Fire protection method, device and equipment for electrochemical energy storage system

Номер: CN116013049A
Принадлежит:

The invention discloses a fire protection method, device and equipment for an electrochemical energy storage system, and the method comprises the steps: responding to a received protection request, and collecting a plurality of groups of monitoring data of the electrochemical energy storage system through a comprehensive monitoring module; corresponding early warning strategies are selected for polling according to each group of monitoring data, and a plurality of polling results are generated; all polling results are responded, corresponding reminding operation is executed through an audible and visual alarm, and whether protection operation is executed or not is determined; and if the execution is determined, the protection operation is executed through the deflation no-entry indicator lamp and the fire suppression module. In the whole fire protection process of the electrochemical energy storage system, multi-dimensional judgment is carried out through multi-parameter coupling, and the ...

Подробнее
21-07-2023 дата публикации

Energy storage working state non-intrusive monitoring method and system based on multi-core CNN (Convolutional Neural Network)

Номер: CN116470502A
Принадлежит:

The invention discloses an energy storage working state non-intrusive monitoring method and system based on a multi-core CNN, and the method comprises the steps: training an energy storage non-intrusive load monitoring model based on the multi-core CNN through employing the historical total power consumption data and historical energy storage system charging load data of a monitoring region, and obtaining a target energy storage non-intrusive load monitoring model; and then the target energy storage non-intrusive load monitoring model is used for monitoring and identifying the working state of the energy storage system in the monitoring area, so that the working state of the energy storage equipment can be accurately and efficiently monitored and identified, and accurate control and management of the energy storage equipment are realized. The load management capability of the power system can be improved under the background of high-proportion energy storage load injection, and powerful ...

Подробнее
01-08-2023 дата публикации

Load decomposition method and device of electric vehicle, electronic equipment and storage medium

Номер: CN116523681A
Принадлежит:

The invention discloses a load decomposition method and device for an electric vehicle, electronic equipment and a storage medium, and is used for solving the technical problem of low load decomposition accuracy in an existing load decomposition method. The method comprises the steps of obtaining a power sequence data set of a power utilization area, dividing the power sequence data set into a joint training set and a load decomposition test set according to a certain proportion, and performing data preprocessing on the joint training set and the load decomposition test set to obtain a corresponding power consumption training set and a power consumption test set so as to improve the model training accuracy and improve the power consumption test efficiency. And establishing an electric vehicle load decomposition model based on a VGG-16 convolutional neural network, performing model training by using the power consumption training set and the power consumption test set, obtaining total load ...

Подробнее
21-04-2023 дата публикации

Top-down equivalent load model construction method and device and terminal equipment

Номер: CN115994653A
Принадлежит:

The invention relates to a top-down equivalent load model construction method and device and terminal equipment, and the method comprises the steps: obtaining the historical daily load data of n users on a power distribution network, and carrying out the clustering screening of the n users according to the historical daily load data, and obtaining m typical users; acquiring load electrical data of typical users of each household at an interval of time t, performing training and feature matching according to the load electrical data of each household and preset various types of load models, and performing identification to obtain type load models of the typical users; adopting a type load model as a single load model of a corresponding user of the same type as the typical user, and aggregating the n single load models according to the voltage level to construct a low-voltage side comprehensive load model; and performing equivalence processing on the low-voltage side comprehensive load model ...

Подробнее
21-04-2023 дата публикации

Special high-corrosion-resistance reaction kettle for chlorination

Номер: CN115990446A
Принадлежит:

The invention discloses a high-corrosion-resistance chlorination special reaction kettle which comprises a connecting cylinder, a spherical bottom is fixedly welded to one end of the connecting cylinder, a welding structure is arranged on one side of the connecting cylinder and the spherical bottom, a cover plate structure is arranged at the other end of the connecting cylinder, and shaping surfaces are arranged on the side faces of the connecting cylinder and the spherical bottom. The spherical bottom is provided with a shaping surface, the surface of the shaping surface is fixedly compounded with an enamel layer, the welding structure comprises a welding ring and a closed ring, the welding ring is fixedly connected to the outer side surface of the connecting cylinder, and the welding ring is fixedly welded to the surface of the spherical bottom. And a welding structure and a cover plate structure are combined, the strength is guaranteed through welding positioning, meanwhile, split combined ...

Подробнее
18-08-2023 дата публикации

Remote safety measure arrangement method and system for relay protection device of intelligent substation

Номер: CN116613886A
Принадлежит:

The invention discloses an intelligent substation relay protection device remote safety measure arrangement method and system, and the method comprises the steps: obtaining the state of a relay protection device and the state of primary equipment, comprehensively judging the state value of the relay protection device and the state value of the primary equipment according to the current states of the primary equipment and the relay protection device, and carrying out the safety measure enabling. According to a protection state command issued by an operation and maintenance worker through an operation and maintenance main station of an intelligent substation, the relay protection device is controlled to automatically carry out inputting and withdrawing of a soft pressing plate within the broadening time, one-button safety measure arrangement of the relay protection device is achieved, manual operation is replaced, and the safety of the relay protection device is improved. The technical problems ...

Подробнее
04-04-2023 дата публикации

Deflection device special for welding reaction kettle cover

Номер: CN115890120A
Принадлежит:

The invention discloses a special displacement device for welding a reaction kettle cover, which comprises a fixed plate, brackets are arranged at the two ends of the fixed plate, a rotating shaft is rotatably connected to one end of each bracket, an overturning ring is mounted at one end of each rotating shaft, a rotating ring is rotatably mounted in each overturning ring, and an adjusting structure is arranged at one end of each rotating ring. A driving structure is arranged at one end of the rotating shaft, a groove is formed in the other end of the rotating ring, a clamping screw is in threaded connection with the side face of a mounting groove, an annular groove is formed in the side face of the overturning ring, a connecting ring is arranged on the surface of the rotating ring and rotationally installed on the side face of the annular groove, and balls are arranged on the two sides of the connecting ring. According to the scheme, the overturning ring and the rotating ring are installed ...

Подробнее
04-07-2023 дата публикации

Parameter determination method and device of power system load model, equipment and medium

Номер: CN116388180A
Принадлежит:

The invention discloses a parameter determination method and device for a power system load model, equipment and a medium, which are used for solving the technical problems of large error and low accuracy of the existing parameter determination method for the power system load model. According to the method, the model response curve and the off-line mode library of the corresponding parameters are established, the target response curve is determined according to the matching result of the off-line mode library during on-line identification, and then iterative variation is performed on the target response curve according to the fitness index of the target response curve so as to continuously update the fitness index; therefore, the parameters of the load model are continuously adjusted, the difference between simulation output of the load model and an actual response output curve obtained through actual measurement is minimum, the global optimization capacity can be improved, and local optimum ...

Подробнее
07-04-2023 дата публикации

Non-intrusive load identification method and device

Номер: CN115935225A
Принадлежит:

The invention discloses a non-intrusive load identification method and device, and the method comprises the steps: extracting load feature data corresponding to preset novel loads, and the preset novel loads comprise distributed photovoltaic, electric vehicle and household novel loads; and a preset load identification model constructed based on a weighted voting mechanism is adopted to carry out load analysis on the load characteristic data to obtain a load identification result, and the preset load identification model is obtained by carrying out weight optimization through a preset particle swarm algorithm. The preset load identification model is constructed based on a weighted voting mechanism, and the model weight is optimized through the preset particle swarm algorithm, so that the load analysis is more targeted, and the accuracy and reliability of the identification result can be ensured. The technical problems that in the prior art, the novel load is not analyzed, and a classifier ...

Подробнее
09-05-2023 дата публикации

Space-based monitoring system and method for ecological environment pollution emission source

Номер: CN116087119A
Принадлежит:

The invention provides an ecological environment pollution emission source space-based monitoring system and method, and the method comprises the steps: classifying ecological environment pollution emission sources according to actual application demands, and determining a monitoring target, target characteristics and a corresponding space-based monitoring means of each type of pollution emission sources; wherein the ecological environment pollution emission source comprises a water pollution emission source, an air pollution emission source and an ecological pollution emission source; aiming at different monitoring targets and corresponding monitoring means, providing a data processing and application method, and forming a corresponding parameter inversion sub-module; establishing an ecological environment pollution emission source monitoring system, and selecting a combination of different parameter inversion sub-modules according to a specific application scene and a monitoring task ...

Подробнее
04-07-2023 дата публикации

Hyperspectral anomaly detection method of variational background inference generative adversarial network

Номер: CN116385351A
Принадлежит:

The invention relates to a hyperspectral anomaly detection method for a variational background inference generative adversarial network, and the method comprises the following steps: inputting a hyperspectral image into a trained hyperspectral anomaly detection model, carrying out the image reconstruction, calculating a reconstruction error, and obtaining a hyperspectral anomaly detection result, the training process of the hyperspectral anomaly detection model comprises the following steps: 1) constructing a training sample; 2) establishing a variational background reasoning generative adversarial network; 3) obtaining a sampling data latent variable; 4) inputting the latent variable z and the normal distribution sample into a latent variable discriminator, and carrying out adversarial training; 5) inputting the latent variable and the normal distribution sample into a generator, and respectively generating two generation samples; 6) jointly inputting the training sample and the two generated ...

Подробнее