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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.
08-04-2015 дата публикации

Wireless WiFi signal source orientation method

Номер: CN104502890A
Автор: XIE NIAN, XUN PIANZHEN, HE FENG, LYU YUAN
Принадлежит:

The invention discloses a wireless WiFi signal source orientation method. Wireless WiFi signals received by use of a directional antenna are analyzed, through combination with the inherent parameters, the horizontal radiation receiving angle and the vertical radiation receiving angle of the directional antenna, the orientation of a WiFi signal source is determined, and a plane wireless WiFi signal orientation radar map and a received signal list and specific physical information of each signal are given. According to the invention, the signal orientation is accurately determined, and the method is simple and practical and is fast in response.

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Номер записи: 1
02-09-2015 дата публикации

A infrared light source pulse constant-current drive circuit for two-phase flow measuring device

Номер: CN0204616135U
Автор: XUN PIANZHEN, HE FENG, XIE FENG, CAO YONGQUAN, LIU YOUQING
Принадлежит:

The utility model discloses an infrared light source pulse constant-current drive circuit for two-phase flow measuring device, produce the circuit including reference voltage, reference voltage produces the circuit output and is connected with the reference voltage modulated circuit input, the reference voltage modulated circuit output is connected with pulse constant current source circuit input end, pulse constant-current source circuit output is connected with infrared light source. The utility model discloses simple structure, measurement accuracy are high, luminous intensity is stable, the response is fast, the low power dissipation, and stability is good.

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Номер записи: 2
15-10-2014 дата публикации

Infrared detecting circuit for gas-liquid two-phase flow measuring device

Номер: CN104101578A
Автор: XUN PIANZHEN, HE FENG, XIE FENG, CAO YONGQUAN, LIU YOUQING
Принадлежит:

The invention discloses an infrared detecting circuit for a gas-liquid two-phase flow measuring device. The infrared detecting circuit comprises a voltage-current converting circuit, a sampling holding circuit, a filter circuit and a secondary amplifying circuit, which are connected in sequence; the input end of the sampling holding circuit is connected with the output end of a light source driving signal delay circuit, and the light source drive signal delay circuit is used for receiving light source driving signals emitted by a light source. The infrared detecting circuit provided by the invention has the advantages that the circuit structure is simple, the detection precision is high, the respond is fast, the power consumption is low, and the stability is good; meanwhile, the infrared detecting circuit has the characteristics that the infrared detecting circuit is not influenced by light source drive duty cycle and pre-stage circuit rate; moreover, the defects of the conventional circuit ...

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Номер записи: 3
14-07-2023 дата публикации

Alarm method for low electric quantity of button cell

Номер: CN116435631A
Автор: KUANG SAIWEN, XUN PIANZHEN
Принадлежит:

The invention relates to the technical field of electronics, and discloses a button cell low-power alarm method, which is used for solving the technical problem that the low power of a button cell cannot be timely and accurately judged at the present stage. According to the method, the radio frequency system circularly runs according to the sequence of radio frequency dormancy, radio frequency awakening and radio frequency working stages, and the minimum voltage value in one cycle is obtained by continuously collecting the voltage in the radio frequency awakening and radio frequency working stages. And calculating a minimum voltage difference value between the minimum voltage value of the first cycle and the minimum voltage value in each subsequent cycle. And finally, setting a continuous number of times as at least four alarm thresholds, and periodically calculating an average minimum voltage difference value of the minimum voltage difference values in the period T according to the period ...

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Номер записи: 4
06-06-2023 дата публикации

Method for monitoring electric quantity of button cell

Номер: CN116224094A
Автор: XUN PIANZHEN, KUANG SAIWEN, KONG GAOMIN
Принадлежит:

The invention relates to the technical field of electronics, discloses a button cell electric quantity monitoring method, and is used for solving the technical problems that a current cell electric quantity monitoring method cannot accurately monitor the electric quantity of a button cell and the service life of the cell is affected due to too complex monitoring circuit. According to the method, the battery discharge curves corresponding to different temperatures are measured at first, so that the battery electric quantity measurement precision in the temperature variable environment can be effectively improved, and meanwhile, the discharge process is subdivided into three discharge stages according to the change trend of the discharge voltage in the discharge curves; obtaining a battery remaining capacity calculation relational expression corresponding to the three discharge stages according to the discharge curve relation, and calling the corresponding calculation relational expression ...

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Номер записи: 5