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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11. Отображено 11.
26-05-2023 дата публикации

Low-voltage distributed photovoltaic metering acquisition communication networking framework and method

Номер: CN116170460A
Принадлежит:

The invention discloses a low-voltage distributed photovoltaic metering acquisition communication networking framework and method. The low-voltage distributed photovoltaic metering acquisition communication networking framework comprises an acquisition master station, a plurality of different networking modules and photovoltaic equipment, the acquisition master station is connected with different photovoltaic devices through the plurality of different networking modules so as to acquire photovoltaic information of the photovoltaic devices. According to the invention, the comprehensiveness and integrity of acquired data information are ensured, and the full coverage of low-voltage distributed photovoltaic high-frequency acquisition communication is completed.

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09-05-2023 дата публикации

Double-control electromagnetic circuit breaker

Номер: CN116092888A
Принадлежит:

The invention belongs to the technical field of circuit breakers, and relates to a double-control electromagnetic circuit breaker, which comprises a circuit breaker body, a control handle is arranged in the circuit breaker body, the control handle is connected with a handle driving component, and the handle driving component is a driving electromagnet; the driving electromagnet comprises an outer frame, a middle partition plate is arranged in the middle in the outer frame and divides the inner space of the outer frame into an upper coil chamber and a lower coil chamber, a guide sleeve is further arranged in the outer frame and penetrates through the middle partition plate, a first coil is arranged on the periphery of the guide sleeve in the upper coil chamber, and a second coil is arranged on the periphery of the guide sleeve in the lower coil chamber. A movable iron core is arranged in the guide sleeve, a first static iron core and a second static iron core are arranged at the two ends ...

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04-07-2023 дата публикации

Multipath digital electric energy metering board card

Номер: CN116381331A
Принадлежит:

The invention discloses a multipath digital electric energy metering board card, which comprises a multipath message access unit, an APSoC unit and an auxiliary unit, the message access unit comprises five 100M SFP interfaces and is used for realizing IEC61850-9-2 protocol sampling value message access and forwarding to the APSoC unit, the APSoC unit is composed of an FPGA core and an ARM core, the FPGA core is connected with the auxiliary unit, and the auxiliary unit is connected with the APSoC unit. The FPGA core analyzes an IEC61850-9-2 protocol message and obtains sampling data, further, intermediate dot product metering and electrical parameter measurement are achieved, a calculation result is sent to the ARM core through an internal AXI bus, overall accumulation calculation, storage management and communication of multi-path electric energy are achieved through the ARM core, and finally synchronous electric energy metering of the maximum five metering points is achieved. The auxiliary ...

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23-06-2023 дата публикации

Method, device and system for calculating theoretical line loss of transformer area

Номер: CN116304526A
Принадлежит:

The invention discloses a transformer area theoretical line loss calculation method, device and system, and the method comprises the steps: constructing a time series data set based on the historical feature data of each transformer area and the corresponding theoretical line loss value; training a line loss prediction model by using the time sequence data set to obtain an initial weight of the line loss prediction model; and obtaining feature data of each transformer area on the current day, inputting the feature data into the line loss prediction model, and predicting a predicted theoretical line loss value on the current day by using the line loss prediction model. According to the method, theoretical line loss analysis of the whole transformer area can be more accurately realized, and transformer area line state operation and maintenance and accurate maintenance are facilitated.

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07-04-2023 дата публикации

USB key device and communication method based on USB key device

Номер: CN115941190A
Принадлежит:

The invention discloses a USB key device and a communication method based on the USB key device, and the device comprises an interface module which is used for adapting to different types of interface devices; the main control processor is used for sending the received first service data to the security calculation module, receiving ciphertext data returned by the security calculation module according to the first service data, and sending the first ciphertext data to the security Bluetooth module; the server is used for receiving second service data sent by the terminal equipment through the secure Bluetooth module, receiving plaintext data returned by the secure computing module according to the second service data, and sending the plaintext data to an upper application; the security calculation module is used for encrypting the first service data; the decryption module is used for decrypting the second service data; and the secure Bluetooth module is used for establishing communication ...

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04-04-2023 дата публикации

Networking interconnection communication method and system for electric energy meters in metering box

Номер: CN115913602A
Принадлежит:

The invention discloses a networking interconnection communication method and system for an electric energy meter in a metering box, and the method comprises the steps: determining an intermediate device at a preset level, and building the communication between the intermediate device and an upper-level master station, a concentrator, and an electric energy meter in a lower-level metering box; the master station sends a meter reading request message to the intermediate equipment, so that the intermediate equipment returns the equipment identifier of the intermediate equipment and the equipment identifier of each meter corresponding to the intermediate equipment to the master station; and the master station acquires a secret key by adopting a transencryption mode based on the received equipment identifier, and performs encrypted transmission of data based on the secret key. By constructing a new electric energy meter acquisition information flow transmission mode, a networking meter reading ...

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15-08-2023 дата публикации

Multi-parameter fusion circuit breaker service life prediction method and system

Номер: CN116595863A
Принадлежит:

The invention discloses a multi-parameter fusion circuit breaker service life prediction method and system. The method comprises the following steps: determining characteristic parameters reflecting the operation state and service life information of a circuit breaker; inputting the characteristic parameters into a trained final machine learning model, and outputting the operation state and service life information of the circuit breaker through the final machine learning model; and predicting the service life of the circuit breaker through the output running state and service life information of the circuit breaker. According to the method, the characteristic parameters reflecting the operation state of the circuit breaker are extracted, so that the calculation amount of a subsequent machine learning algorithm is remarkably reduced, the processing of the operation data of the large-scale low-voltage circuit breaker is avoided, and the calculation speed is higher. The device can be integrated ...

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26-05-2023 дата публикации

Metering and collecting device

Номер: CN116165430A
Принадлежит:

The invention discloses a metering acquisition device, and relates to the technical field of electricity utilization information acquisition. The metering acquisition device comprises an acquisition terminal, an intelligent electric energy meter and an intelligent circuit breaker, the acquisition terminal is installed at the low-voltage side of a transformer, and is used for acquiring a command sent by a master station and energy consumption information of users in a transformer area, and sending the command to the intelligent circuit breaker through the intelligent electric energy meter. The intelligent electric energy meter is installed in a metering box and is used for carrying out electric energy metering and voltage monitoring to generate electric energy data and sending the electric energy data to the acquisition terminal. And the intelligent circuit breaker is installed in the metering box and is used for controlling reclosing and performing overvoltage and undervoltage protection ...

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09-06-2023 дата публикации

Electric power marketing district imaging method and system

Номер: CN116246028A
Принадлежит:

The invention discloses an electric power marketing district imaging method and system in the technical field of big data analysis and electric power marketing. The method comprises the following steps: acquiring a transformer area topological relation of a specified transformer area, coordinates of a metering device and coordinate information along a road; constructing a convex polygon according to the topological relation of the transformer area and the coordinates of the metering device; splitting the officially defined road into subdivided roads according to the coordinate information along the road; and determining subdivided roads on the periphery of the convex polygon, forming a relative relation between a transformer area topological relation and streets, and realizing imaging of the electric power marketing transformer area. According to the invention, the working personnel can be helped to clarify the relative relation between the transformer area topological relation and the ...

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09-05-2023 дата публикации

Method and system for remote comparison of embedded device files

Номер: CN116094741A
Принадлежит:

The invention discloses a method and a system for remotely comparing files of embedded equipment, and the method comprises the following steps: a remote master station sends a to-be-compared file to the embedded equipment, and the remote master station and the embedded equipment store the to-be-compared file and a corresponding file name; the remote master station removes the first file content with the preset length at the random position of the to-be-compared file, and calculates a first check code of the first residual file content; the remote master station sends the file name, the random position and the preset length of the file to be compared to the embedded device; the embedded device removes a second file content with a preset length based on the random position of the file to be compared, and calculates a second check code of a second residual file content; the remote master station obtains second file content and a second check code, performs consistency comparison on the first ...

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09-05-2023 дата публикации

Operating system adaptation method and system for intelligent power utilization terminal

Номер: CN116088869A
Принадлежит:

The invention discloses an operating system adaptation method and system for an intelligent power utilization terminal, and the method comprises the steps: obtaining a target equipment tree source file, and determining a target hardware resource information table matched with the target equipment tree source file; updating the target device tree source file based on a target hardware resource information table; compiling the updated target device tree source file to obtain a device tree mirror image; and updating and covering the device tree mirror image into the device tree partition of the intelligent power utilization terminal to complete the operation system adaptation. According to the method, the equipment tree source file and the hardware resource information table are matched based on the MCU model, and the equipment tree source file is updated, so that rapid adaptation of the operating system is realized, and the problems of large workload and low efficiency of current batch adaptation ...

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