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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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Применить Всего найдено 5. Отображено 5.
04-04-2023 дата публикации

Transformer fault diagnosis and prediction method and system

Номер: CN115905936A
Автор: XU MINGKAI, REN ZHIGANG, HOU JUN, HU XURAN, WANG SIYUAN, CUI QIHUI, HUANG RUI, LI CONG, BAO XIN, CHU ZHUANGZHUANG, ZHOU XINGFU, JIANG CHAO, WEI LIANG, LIU CHUNMING, XIE XIANGYAN, ZHENG YIBIN, YANG JIE
Принадлежит:

The invention provides a transformer fault diagnosis and prediction method and system, and the method comprises the steps: obtaining updatable historical data of a transformer oil chromatography, and dividing the updatable historical data into a training set and a prediction set; inputting the training set into a pre-established neural network, and calculating an initial weight and neuron bias; then iterative loop forward propagation is carried out, and a training set is adopted to train a full connection layer of the neural network to calculate an error between actual output and expected output; if the error does not meet the requirement, performing back propagation to update neuron bias; inputting the initial weight into the whale optimization algorithm to update the initial weight; and performing iterative operation again by using the updated neuron bias and the initial weight, obtaining prediction set data, and inputting the prediction set data to the updated neural network to complete ...

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Номер записи: 1
09-05-2023 дата публикации

Electrical equipment oil leakage image recognition method and system

Номер: CN116091395A
Автор: WANG SIYUAN, LI CONG, LIU XIAO, BAO XIN, ZHANG YUWEI, LI BIN, ZHANG DECAI, ZHOU XINGFU, JIANG CHAO, WEI LIANG, LIU CHUNMING, XIE XIANGYAN, ZHENG YIBIN, YANG JIE
Принадлежит:

The invention provides an electric power equipment oil leakage image identification method and system. The method comprises the steps of obtaining an original image of an electric power equipment oil leakage area; histogram equalization processing is carried out on the original image to enhance the contrast ratio of a detection area and a background in the original image, sharpening processing is carried out on the original image to enhance the edge part of the detection area, and a basic image is obtained after processing; and inputting the basic image into a semantic segmentation model to obtain information of the oil stain area, and generating a final image. Based on the electrical equipment oil leakage image recognition method, the invention further provides an electrical equipment oil leakage image recognition system. According to the method, the recognition result is further refined on the basis of the basic image through the semantic segmentation model, namely, pixel-level foreground ...

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Номер записи: 2
13-07-2016 дата публикации

Ground connection stake earth connection alarm device

Номер: CN0205384701U
Автор: BAO XIN, SONG PENGYUE, AN YUQUAN
Принадлежит:

... 本实用新型公开了种接地桩接地线报警装置，属于施工检修设备领域。其技术方案为：包括长方体的外壳、绑带和设置于外壳内的报警系统，外壳包括相互扣合的顶盖及盒体，顶盖上设置有光敏开关开孔与红外感应探头，顶盖侧与绑带端连接，盒体底部设置有扩音口，盒体侧设置有充电插口与警示灯插口，警示灯插口与警示灯相连接；报警系统包括依次连接的红外感应模块、控制模块、光敏开关及警示灯模块，控制模块还连接有语音模块。本实用新型的有益效果为：设计合理，结构简单，利用红外人体感应技术对靠近的人进行警示，在语音警示的基础上增加光警示效果，采用警示灯带，可以把警示灯带缠绕在比较醒目的位置，从而起到很好的警示效果。 ...

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Номер записи: 3
09-05-2023 дата публикации

Intelligent anti-misoperation electric crank for transformer substation switch cabinet handcart and anti-misoperation method of intelligent anti-misoperation electric crank

Номер: CN116093799A
Автор: DUAN CHENGJIN, FAN YAN, HU XURAN, WANG SIYUAN, BAO XIN, WANG ZHONG, WANG FENG, WANG LIN, LIU XIAO, ZHANG YUWEI, CHU ZHUANGZHUANG, SU XIN, WANG HAO, LIU MENGQI
Принадлежит:

The invention discloses an intelligent anti-misoperation electric crank for a transformer substation switch cabinet handcart and an anti-misoperation method of the intelligent anti-misoperation electric crank, and mainly relates to the technical field of power transformation operation and maintenance of a power system. Comprising a servo motor, a translation system and a shell, the output end of the servo motor is connected with an electric spindle, a crank connector is arranged at the top end of the electric spindle, the translation system is arranged at the tail end of the servo motor, and the shell is of a hollow cuboid structure with openings in the two ends; and the servo motor and the translation system are sleeved in the shell and are in sliding fit with the shell. The switch cabinet handcart has the beneficial effect that the switch cabinet handcart can be quickly, smoothly and safely operated.

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Номер записи: 4
22-08-2023 дата публикации

Transformer ultrahigh frequency partial discharge positioning method and system based on SSA optimization

Номер: CN116626457A
Автор: LIU ZHAO, WANG SIYUAN, QU HANBING, REN ZHIGANG, XU MINGKAI, YU GUANGYUAN, HU XURAN, BAO XIN, MAO CHUNCHUN, JIANG CHAO, JIANG XIUCHEN, XU YONGPENG
Принадлежит:

The invention discloses a transformer ultrahigh frequency partial discharge positioning method and system based on SSA optimization, and belongs to the technical field of power equipment fault localization, and the method comprises the following steps: collecting transformer partial discharge UHF signals, and carrying out the noise reduction of the transformer partial discharge UHF signals; performing cross-correlation calculation on the transformer partial discharge UHF signal after noise reduction processing, and determining a UHF signal time difference; establishing a partial discharge source objective function constraint equation, substituting the partial discharge source objective function constraint equation into the UHF signal time difference, and solving by using an SSA algorithm to obtain a plurality of positioning solutions; performing clustering analysis on the obtained positioning solution by using a K-means algorithm to obtain a clustering center; and calculating an optimal ...

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Номер записи: 5