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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.
23-07-2014 дата публикации

Handheld electric forecast monitoring system

Номер: CN103944267A
Автор: REN WEIJIAN, HUO FENGCAI, KANG CHAOHAI, LI DESHENG, YU DI, GAO HONGYU, JIANG YINLING
Принадлежит:

The invention discloses a handheld electric forecast monitoring system which comprises a CPU processor, a power circuit, a key, a touch display screen, a reset circuit, a bar code scanning module, a Wi-Fi interface, a loudspeaker circuit, an internal memory, an RS232 interface, a GPRS circuit, an SD card interface and a USB interface. The system is a standardization system combined with service need development on mobile terminal equipment (PDA), a handheld forecast monitoring terminal is developed by analyzing power line repair and other work procedures, operating process forecast, voice prompting, work ticket inquiry, operating data output and other functions on handheld equipment are achieved based on the wireless communication technology and the bar code recognition technology, power dispatching can be assisted in collecting the operating data of a pole tower, a cable and other electric equipment, an electric equipment database is built, the defects of a traditional mode are thoroughly ...

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Номер записи: 1
01-07-2015 дата публикации

Water drive development oil reservoir well pattern injection-production relation determination method

Номер: CN104747147A
Автор: YU DI, HUO FENGCAI, KANG CHAOHAI, HU SHAOBIN, GAO HONGYU, REN WEIJIAN, GUAN XUEZHONG
Принадлежит:

The invention provides a water drive development oil reservoir well pattern injection-production relation determination method. The method comprises the steps of a first step of determining injection rate sample data of injecting wells and output sample data of producing wells or a producing well set according to production data of a water injection well in an oilfield and an oil producing well; a second step of performing filtering processing on the injection rate sample data of the injecting wells and the output sample data of the producing wells or the producing well set respectively to determine output responses of the producing wells or the producing well set corresponding to the step change of injection rates of the injecting wells; a third step of determining the injection-production relation of each injecting well and the corresponding producing well or the producing well set according to the output responses of the producing wells or the producing well set corresponding to the ...

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Номер записи: 2
23-07-2014 дата публикации

Binary system algorithm and two-dimensional straight line cross entropy combined image segmentation method

Номер: CN103942815A
Автор: HUO FENGCAI, KANG CHAOHAI, REN WEIJIAN, WANG YANQIN, YANG LI, ZHANG HUIZHEN, WANG TINGTING
Принадлежит:

The invention discloses a binary system algorithm and two-dimensional straight line cross entropy combined image segmentation method. Compared with the prior art, firstly, a gray level-neighborhood averaging two-dimensional grey level histogram of an image is calculated to establish a two-dimensional straight line cross entropy, and the image is divided into a target portion and a background portion by a straight line perpendicular to a main diagonal; secondly, individual encoding is performed by utilizing a binary system, the two-dimensional straight line cross entropy serves as a fitness function, a mechanism of a bee colony algorithm updating formula is analyzed, and a binary system bee colony algorithm based on a genetic mechanism is provided. By adopting the algorithm, a threshold value is obtained in a self-adaptive mode, and a linear equation for segmentation is confirmed; finally, an optimum solution is selected by adjusting algorithm parameters according to regular rules in a self-adaptive ...

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Номер записи: 3
04-08-2023 дата публикации

Mobile robot path planning method based on motion constraint improved ant colony algorithm

Номер: CN116540738A
Автор: HUO FENGCAI, DONG HONGLI, ZHU SHUAI, REN WEIJIAN, KANG CHAOHAI, LU JINGYI, ZHANG HUIZHEN
Принадлежит:

The invention relates to a mobile robot path planning method based on a motion constraint improved ant colony algorithm. The mobile robot path planning method comprises the following steps: carrying out rasterized modeling on a working environment map of a mobile robot; considering the distance between the to-be-selected node and the target point in the heuristic function, fusing the corner penalty factor, and calculating a heuristic function pheromone matrix; calculating a state transition matrix, and selecting a next node according to a roulette principle; taking two evaluation indexes of path length and turning energy consumption as constraint conditions of a multi-objective function, and converting a path planning problem into a multi-objective optimization problem; when the number of ants reaches the preset maximum number of ants, the pheromones are updated according to a double-layer pheromone updating mode; if the number of iterations reaches the preset maximum number of iterations ...

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Номер записи: 4
02-09-2015 дата публикации

Tent mapping improved bee colony algorithm for image threshold segmentation

Номер: CN104881703A
Автор: HUO FENGCAI, DONG HONGLI, REN WEIJIAN, LU YANG, WANG YANQIN, KANG CHAOHAI, YU DI, ZHANG HUIZHEN
Принадлежит:

The object of the invention is to provide a Tent mapping improved bee colony algorithm for image threshold segmentation. The method includes: employing Tent mapping to initialize the individuals of the algorithm; employing the Tent mapping to uniformly distribute initial values in a solution space; employing the standard manual bee colony algorithm to search a new nectar source near a nectar source; updating the position of the new nectar source, maintaining the position of the new nectar source if the position is better than the position of the original nectar source, and otherwise maintaining the position of the original nectar source; updating the position of the new nectar source aiming to a following bee according to the method of step 3 and the selection probability of roulette, maintaining the position of the new nectar source if the position is better than the position of the original nectar source, and otherwise maintaining the position of the original nectar source; updating the ...

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Номер записи: 5