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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 10. Отображено 10.
25-04-2023 дата публикации

Single target tracking method and system based on deep learning

Номер: CN116012777A
Автор: LIU WENTAO, MA HUAN, ZHU ZHONGXIAN, LIU XIN, ZHU YUANFU, WANG YUN, WANG WEIWEI, WU XIANG, DU PENG, GUO ZHENYU, PU DAOJIE, CAI KEWEI, HUANG DAOJUN, ZHANG XUEYOU, GUO LONGGANG, DU YAO, CHANG WENJING, XU MENGFU, ZANG CHUNHUA, CHEN YING, WENG LING, YANG NAIQI, SHAO HUA, SHEN GUOTANG, WEI NAN, SHI WEN
Принадлежит:

The embodiment of the invention provides a single-target tracking method and system based on deep learning, and belongs to the technical field of monitoring of an electric power operation and maintenance site. The single-target tracking method comprises the following steps: acquiring gray-scale pictures of historical static pictures on site to serve as an initial training set; training a first deep learning network by adopting the initial training set; acquiring a historical single target gray scale picture of the scene to serve as a target training set; training a second deep learning network by adopting the target training set; obtaining video data of a current site; intercepting pictures in the video data according to preset frame number time; inputting the picture into the first deep learning network to obtain a background image; determining a difference image according to the background image and the picture; inputting the difference image into the second deep learning network to obtain ...

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Номер записи: 1
15-07-2009 дата публикации

Voltage equalizing protection control circuit for series IGBT

Номер: CN0101483334A
Автор: ZHANG XING, PU DAOJIE, SUN RONGBING, LIU CHUN, XING ZHANG, DAOJIE PU, RONGBING SUN, CHUN LIU
Принадлежит:

The present invention discloses a voltage sharing protection control circuit of series IGBT, and the structural feature is the setup of the voltage change rate control circuit and the terminal voltage clamp control circuit, wherein the voltage change rate control circuit is composed by a one-way conducting diode D2, a charge-discharge capacitance C1 and a resistance R2; during switch off time of the IGBT, the conducting diode D2 and the capacitance C1 in charged state constitute IGBT external capacitance parallel to CG end of the IGBT; during conducting time of the IGBT, the capacitance C1 takes resistance R2 as discharge path; the terminal voltage clamp circuit is composed by a triode T1 and T2, the clamp state is that DC passes through triode T2, diode D3 and charge grid capacitance of the IGBT. The present invention constitutes control circuit with simple analog elements, realizes IGBT switch voltage waveform similar to standard curve, and realizes different voltage change rate in different ...

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Номер записи: 2
04-06-2014 дата публикации

Piezoelectric sensor

Номер: CN103837227A
Автор: HUANG SHILEI, PU DAOJIE
Принадлежит:

The invention provides a piezoelectric sensor which comprises a piezoelectric transducer and a fixing device. The fixing device is provided with a groove, the lower portion of the piezoelectric transducer is arranged in the groove, the upper portion of the piezoelectric transducer protrudes out of the outer surface of the fixing device, and the upper portion of the piezoelectric transducer is provided with an attaching face attached to the outer wall of a GIS, so that in use, the piezoelectric transducer with the attaching face tightly attached to the outer wall of the GIS can be selected, the piezoelectric transducer is embedded in the fixing device, and then the fixing device is fixed on the surface of the outer wall of the GIS, and therefore internal discharging of the GIS can be detected and accurately located. The technical problems that in the prior art, the piezoelectric sensor only is suitable for the condition that the outer wall of the GIS is planar, and is poor in flexibility ...

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Номер записи: 3
05-02-2014 дата публикации

Portable pneumatic circuit grounding device of transformer substation

Номер: CN103560421A
Автор: WU SHENG, LIAO JUN, PU DAOJIE, JING YAO, WU DONGHUI
Принадлежит:

The invention discloses a portable pneumatic circuit grounding device of a transformer substation, and relates to a transformer substation circuit grounding device. The portable pneumatic circuit grounding device of the transformer substation comprises a pneumatic mast (1), a switch blade working cylinder (2) and moving contacts (3), wherein the pneumatic mast (1) is formed by connecting and combining multiple levels of air cylinders, the bottom of the lowest level of air cylinder is provided with an air inlet-outlet valve (11), the switch blade working cylinder (2) is fixed to the top of the pneumatic mast (1), the switch blade working cylinder (2) is internally provided with a switch blade transmission rod (4) and a piston (21) connected with the piston, the bottom of the switch blade working cylinder (2) is provided with an air inlet-outlet hose (22), the number of the moving contacts (3) is two, and the moving contacts (3) are arranged at the tops of two clamping arms (51) of a moving ...

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Номер записи: 4
04-04-2023 дата публикации

Close-shot image acquisition device for electrical equipment

Номер: CN115914796A
Автор: ZHU YUANFU, MA HUAN, LIU WENTAO, ZHU ZHONGXIAN, LIU XIN, DU PENG, GUO ZHENYU, PU DAOJIE, CAI KEWEI, HUANG DAOJUN, ZHANG XUEYOU, GUO LONGGANG, WANG YUN, WANG WEIWEI, WU XIANG, DU YAO, CHANG WENJING, XU MENGFU, WENG LING, YANG NAIQI, SHAO HUA, SHEN GUOTANG, WEI NAN, SHI WEN, ZANG CHUNHUA, CHEN YING
Принадлежит:

The embodiment of the invention provides a close-range image acquisition device for electrical equipment, and belongs to the technical field of electric power operation and maintenance. The acquisition device comprises a sealed cabin which is fixed on the outer surface of the electrical equipment and is provided with an opening, and the opening is attached to the outer surface of the electrical equipment; the short-focus image acquisition equipment is arranged on the outer surface of the electrical equipment and is used for acquiring a close-shot image of the electrical equipment; and the lighting equipment is arranged in the sealed cabin and is used for lighting so that the short-focus image acquisition equipment can acquire the close-shot image. According to the technical scheme, the close-shot image acquisition device for the electrical equipment is arranged in the sealed cabin, so that the influence of factors such as external light and dust in the image acquisition process is avoided ...

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Номер записи: 5
18-04-2023 дата публикации

Automatic inspection route planning method for transformer substation

Номер: CN115981363A
Автор: MA HUAN, LIU WENTAO, ZHU ZHONGXIAN, LIU XIN, ZHU YUANFU, WANG YUN, WANG WEIWEI, WU XIANG, DU PENG, GUO ZHENYU, PU DAOJIE, CAI KEWEI, HUANG DAOJUN, ZHANG XUEYOU, GUO LONGGANG, DU YAO, CHANG WENJING, XU MENGFU, ZANG CHUNHUA, CHEN YING, WENG LING, YANG NAIQI, SHAO HUA, SHEN GUOTANG, WEI NAN, SHI WEN
Принадлежит:

The embodiment of the invention provides a substation automatic inspection route planning method, and belongs to the field of substation inspection. The method comprises the following steps: acquiring a three-dimensional model of a transformer substation; generating a corresponding three-dimensional laser point cloud model according to the three-dimensional model of the transformer substation; marking the three-dimensional coordinates of the equipment in the transformer substation in the three-dimensional laser point cloud model; generating aerial photography points according to the three-dimensional coordinates of the equipment in the three-dimensional laser point cloud model; selecting equipment to be inspected and an aerial photography point corresponding to the equipment; acquiring an inspection entrance and an inspection exit of the transformer substation; and according to the aerial photography point, the inspection entrance and the inspection exit which need to be inspected, generating ...

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Номер записи: 6
16-05-2023 дата публикации

Method and system for high-precision landing of unmanned aerial vehicle and readable storage medium

Номер: CN116126013A
Автор: ZHU ZHONGXIAN, MA HUAN, LIU WENTAO, ZHU YUANFU, WU XIANG, WANG YUN, WANG WEIWEI, LIU XIN, DU PENG, GUO ZHENYU, PU DAOJIE, CAI KEWEI, HUANG DAOJUN, ZHANG XUEYOU, GUO LONGGANG, DU YAO, CHANG WENJING, XU MENGFU, ZANG CHUNHUA, CHEN YING, WENG LING, YANG NAIQI, SHAO HUA, SHEN GUOTANG, WEI NAN, SHI WEN
Принадлежит:

The embodiment of the invention provides an unmanned aerial vehicle high-precision landing method and system and a readable storage medium, and belongs to the technical field of unmanned aerial vehicles. The method comprises the following steps: acquiring a real position of a base station; acquiring a comparison between satellite positioning and the real position of the base station; obtaining a positioning error according to the comparison of the satellite positioning and the real position; the unmanned aerial vehicle obtains the current position of the unmanned aerial vehicle according to the positioning error; transferring the current position of the unmanned aerial vehicle into a three-dimensional coordinate system; acquiring a landing point where the unmanned aerial vehicle needs to land; transferring the landing point into the three-dimensional coordinate system; determining a flight path of the unmanned aerial vehicle according to the positions of the unmanned aerial vehicle and ...

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Номер записи: 7
04-04-2023 дата публикации

Obstacle identification method

Номер: CN115909275A
Автор: WANG WEIWEI, LIU WENTAO, MA HUAN, ZHU YUANFU, LIU XIN, WU XIANG, WANG YUN, ZHU ZHONGXIAN, DU YAO, DU PENG, GUO ZHENYU, PU DAOJIE, CAI KEWEI, HUANG DAOJUN, ZHANG XUEYOU, GUO LONGGANG, CHANG WENJING, XU MENGFU, ZANG CHUNHUA, CHEN YING, WENG LING, YANG NAIQI, SHAO HUA, SHEN GUOTANG, WEI NAN, SHI WEN
Принадлежит:

The embodiment of the invention provides an obstacle recognition method, and belongs to the field of target recognition. The method comprises the following steps: acquiring a left image pair and a right image pair of the same object at the same moment; extracting feature points in the left and right image pairs; matching the feature points in the left and right image pairs; calculating the parallax of the feature point of the target point in the left and right image pairs; calculating the depth of the target point according to a triangular relationship and the parallax; and converting the depth information of the target point into a world coordinate system to obtain the position of the target point in the world coordinate system. The method can quickly determine the position of the obstacle.

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Номер записи: 8
07-07-2010 дата публикации

General constant-power electronic ballast for high-intensity gas discharge lamp

Номер: CN0101772248A
Автор: DAOJIE PU, LIYAN TANG, LIN TIAN, PU DAOJIE, TANG LIYAN, TIAN LIN
Принадлежит:

The invention discloses a general constant-power electronic ballast for a high-intensity gas discharge lamp. The electronic ballast is characterized in that: the electronic ballast adopts a three-stage structure and consists of an active power factor correction (APFC) circuit, an average input current outer ring-based and peak current inner ring-based buck converter and a resonant full bridge inverter circuit; and 220V alternating current is filtered by EMI, the filtered alternating current is connected to the APFC circuit and converted into direct current, the direct current is converted into 0 to 150V adjustable direct current voltage by the buck converter, and the adjustable direct current voltage is converted into a frequency-adjustable alternating current square-wave voltage serving as an HID lamp driving signal by the resonant full bridge inverter circuit. The electronic ballast can obtain good constant-power characteristic and prolong the service life of an HID lamp, and can be matched ...

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Номер записи: 9
13-06-2012 дата публикации

Voltage equalizing protection control circuit for series IGBT

Номер: CN0101483334B
Автор: ZHANG XING, LIU CHUN, PU DAOJIE, SUN RONGBING, XING ZHANG, CHUN LIU, DAOJIE PU, RONGBING SUN
Принадлежит:

The present invention discloses a voltage sharing protection control circuit of series IGBT, and the structural feature is the setup of the voltage change rate control circuit and the terminal voltage clamp control circuit, wherein the voltage change rate control circuit is composed by a one-way conducting diode D2, a charge-discharge capacitance C1 and a resistance R2; during switch off time of the IGBT, the conducting diode D2 and the capacitance C1 in charged state constitute IGBT external capacitance parallel to CG end of the IGBT; during conducting time of the IGBT, the capacitance C1 takes resistance R2 as discharge path; the terminal voltage clamp circuit is composed by a triode T1 and T2, the clamp state is that DC passes through triode T2, diode D3 and charge grid capacitance of the IGBT. The present invention constitutes control circuit with simple analog elements, realizes IGBT switch voltage waveform similar to standard curve, and realizes different voltage change rate in different ...

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Номер записи: 10