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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.
16-05-2023 дата публикации

Multi-sensor fusion grid map-based obstacle avoidance method, system, medium and device

Номер: CN116125978A
Автор: JIANG LIANG, HU BO, DU YUTONG, FAN PENGHUI, SUN MENG, LI CHANG
Принадлежит:

The invention relates to an obstacle avoidance method, system, medium and device based on a multi-sensor fusion grid map, belongs to the technical field of navigation obstacle avoidance, and can solve the contradiction between low system depth image perception frequency and low frame rate processing speed and real-time performance. The method comprises the following steps: S1, constructing a local three-dimensional grid map according to a current unmanned aerial vehicle pose and a current frame depth map, and accumulating the constructed current local three-dimensional grid map into a previous grid map to obtain an accumulated grid map; s2, estimating to obtain the next position and the next attitude of the unmanned aerial vehicle; s3, determining a grid map area to be subjected to obstacle avoidance according to the pre-estimated next position and the pre-estimated next pose; s4, converting image points in the grid map area to be subjected to obstacle avoidance into a body coordinate system ...

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Номер записи: 1
02-05-2023 дата публикации

Connecting fastener device for laying and recycling submarine cable

Номер: CN116054032A
Автор: CAO WEIXUE, ZHANG XUDONG, GAO CHANG, SUN RUN, DU YUTONG
Принадлежит:

The invention discloses a connecting fastener device for laying and recycling submarine cables, which comprises a main body part and a connected piece, the left end and the right end of the main body part are respectively connected with a threaded rod, the middle of the main body part is provided with a rectangular through groove penetrating through a main body structure, and an L-shaped groove hole is arranged between the through groove and the outer surface of the main body structure as an interface channel; the connected piece is provided with an end part, a thick-neck cylinder structure and a thin-neck cylinder structure at the same axis position, the diameters of the end part, the thick-neck cylinder structure and the thin-neck cylinder structure are sequentially reduced, the thin-neck cylinder structure is provided with a mechanical device capable of axially sliding, and the end part is provided with a thread. When in use, the end part of the connected piece is in threaded connection ...

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Номер записи: 2
24-12-2014 дата публикации

Novel lactic acid bacteria enrichment culture medium and preparation method thereof

Номер: CN104232550A
Автор: DU LEI, YUAN CHAO, YUAN YANRU, GUO XIPING, DU YANG, LI BIN, ZHAO LIN, DU YUTONG
Принадлежит:

The invention discloses a novel lactic acid bacteria enrichment culture medium. 1L of the lactic acid bacteria enrichment culture medium consists of the following components: 10-30 g of corn starch and black sugar, 30-50 g of soybean milk and egg yolks, 120-180 mL of corn juice, 120-180 mL of beer, 70-130 mL of carrot juice and the balance of distilled water for supplementing to 1L. The raw materials of the formula are low in price, so that the cost of the culture medium is lowered, and the production cost of an enterprise is lowered.

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Номер записи: 3
01-12-2017 дата публикации

Inductive high-voltage electrification detection displaying and locking device

Номер: CN0107422174A
Автор: DU YUTONG
Принадлежит:

The invention relates to an inductive high-voltage electrification detection displaying and locking device. The system comprises an indicating device, an electronic circuit, a sensor signal terminal, an interlocking signal terminal, a key electricity verification interface, a signal processing unit, an electricity verification display unit, an equipment self-inspection unit, a power supply unit and an output contact unit, and is characterized in that the indicating device and the sensor signal terminal are connected with the electronic circuit, the electronic circuit is provided with the interlocking signal terminal, the key electricity verification interface is connected with the signal processing unit, the electricity verification display unit is connected with the equipment self-inspection unit, an adjustable switching power supply is provided with an electric leakage protection device, the electric leakage protection device is connected with the ground, and the adjustable power supply ...

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Номер записи: 4
25-07-2023 дата публикации

Axle load balancing device for double-front-axle automobile

Номер: CN116476590A
Автор: SHEN BAOSHAN, ZOU YE, KIM JUN-JUN, CUI HONGFEI, DU YUTONG
Принадлежит:

The invention relates to an axle load balancing device for a double-front-axle automobile, and relates to the field of heavy trucks. According to the device, a first hydraulic oil cylinder and a second hydraulic oil cylinder are hinged to the bottoms of a first plate spring support and a second plate spring support correspondingly, a first plate spring and a second plate spring are hinged to the bottoms of the first hydraulic oil cylinder and the second hydraulic oil cylinder, and a first hydraulic cavity communicates with a second hydraulic cavity through an oil pipe; the problem that axle loads of double front axles are not uniform is solved, the hydraulic oil cylinder is used for replacing a plate spring connecting support in the prior art, the axle loads of the two steering shafts are equal, generalization of the front axles is improved, and the service life of the front axles, a frame, tires, a steel plate spring and accessories of the front axles is prolonged.

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Номер записи: 5
01-12-2017 дата публикации

Warehouse management software system based on mobile phone clients

Номер: CN0107423922A
Автор: DU YUTONG
Принадлежит:

The invention relates to a warehouse management software system based on mobile phone clients, which comprises storage units, a goods transport unit, a goods management and control unit, mobile phone client software and monitoring systems, and is characterized in that a plurality of pieces of mobile phone client software are connected with the goods management and control unit through wireless information, a plurality of storage units and the goods transport unit are connected with the goods management and control unit through wireless information, and the monitoring systems and the mobile phone clients are in one-to-one correspondence. The warehouse management software system adopts a mobile phone to control storage and delivery of the goods, realizes intelligentization and informationization of the containerized goods and has the characteristics of wide transmission range, convenient communication, simple use, easy popularization and the like.

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Номер записи: 6
04-07-2023 дата публикации

Local matching-based unmanned aerial vehicle positioning optimization method, system and device

Номер: CN116380064A
Автор: JIANG LIANG, HU BO, FAN PENGHUI, MA XIANGSEN, WU GUOQIANG, DU YUTONG
Принадлежит:

The invention relates to an unmanned aerial vehicle positioning optimization method, system and device based on local matching, belongs to the technical field of navigation positioning, can solve the problem of high calculation complexity of an SLAM (Simultaneous Localization and Mapping) algorithm, and realizes indoor precise positioning based on laser scanning ranging. According to the method, feature line segments and feature points capable of representing a positioning environment are extracted from laser scanning data, and the feature line segments and the feature points are used for replacing laser scanning points for iterative matching to realize positioning, so that the calculation amount in the iterative matching process is greatly reduced; the method comprises the following steps: S1, acquiring laser point cloud data and current IMU data of an unmanned aerial vehicle, and performing motion filtering compensation; s2, performing feature extraction on the filtered target frame; ...

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Номер записи: 7
25-08-2023 дата публикации

Terminal box for rapid switching of secondary signals of transformer and switching method

Номер: CN116646154A
Автор: LIU LIQIANG, YANG XIN, CHENG CONGMING, WANG ERTAO, DU YUTONG, SUN LIANG, WANG YUYAO, CHENG WENTAO, WANG XIAOMENG, WU GUOYING
Принадлежит:

The invention relates to a terminal box for rapid switching of secondary signals of a transformer and a switching method, and belongs to the technical field of transformers. According to the technical scheme, body secondary signal lines of a first A-phase transformer (15), a first B-phase transformer (16) and a first C-phase transformer (17) of an A-group transformer (14) are connected with an A-phase terminal strip (8), a B-phase terminal strip (10) and a C-phase terminal strip (12) respectively, and a standby-phase transformer (25) is connected with a standby-phase quick plugging connector; and a signal line of a user control room is respectively connected with the A-phase quick plugging connector, the B-phase quick plugging connector and the C-phase quick plugging connector. The method has the positive effects that all wiring work can be quickly switched through the quick plugging connector; moreover, one standby phase transformer can be used for multiple purposes, wire removal and wiring ...

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Номер записи: 8
18-04-2023 дата публикации

Perforating device for infrared equipment production

Номер: CN115971693A
Автор: DU YUTONG, LU XUAN, DU KE
Принадлежит:

The invention discloses a punching device for infrared equipment production, and belongs to the technical field of infrared equipment production, the punching device comprises a processing platform, a support frame and a laser-beam drilling machine, the support frame is welded at the bottom of the processing platform, and the laser-beam drilling machine is installed at the center position of the top of the processing platform through a fixing support arranged on the side face; a laser drilling head is arranged at the bottom of the laser drilling machine, the sliding frame is welded to the side wall of the top of the machining platform, the reciprocating type movement control assembly and the multi-contact intelligent clamping control mechanism are both installed in the sliding frame, and the reciprocating type movement control assembly and the multi-contact intelligent clamping control mechanism are arranged on the side wall of the top of the machining platform. The clamping effect is flexible ...

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Номер записи: 9
30-06-2023 дата публикации

Amino acid fertilizer prepared from mixed animal and plant source protein and application of amino acid fertilizer

Номер: CN116354747A
Автор: MAO XIANGCHAO, SUN JIAN'AN, DU YUTONG, ZHAO QIANG, HU ZELIN
Принадлежит:

A preparation method of the amino acid fertilizer comprises the following steps: (1) mixing fish soluble pulp and corn steep liquor dry powder according to the weight ratio of 1: (0.3-3), and adding water to prepare a mixed solution with the concentration of 30%-50%; adding compound protease, and carrying out enzymolysis at 50-60 DEG C for more than 10 hours to obtain enzymatic hydrolysate; the compound protease consists of acid protease and neutral protease; and (2) centrifuging the enzymatic hydrolysate, taking supernatant, and heating, deactivating enzyme and sterilizing to obtain the amino acid fertilizer. The amino acid fertilizer is applied to plant growth promotion and is applied to preparation of a fertilizer with the effect of promoting plant growth. The plants are crops, commercial crops or vegetables. The amino acid fertilizer can promote plant growth to different degrees, increase the yield and improve the plant quality, meanwhile, the nitrate nitrogen content in plants is reduced ...

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Номер записи: 10
14-07-2023 дата публикации

Underwater target passive tracking method and device

Номер: CN116430370A
Автор: CHEN JIANFENG, YIN HAN, ZHANG DONGZHE, DU YUTONG, WANG SHUANG, HUI DONGXING, GAO JIAWEN, WANG YING, XU KE, ZHAO YARONG
Принадлежит:

The invention relates to the technical field of underwater target passive tracking, in particular to an underwater target passive tracking method and device. The problem that in order to achieve expected orientation precision, system complexity and cost are high is solved. The method comprises the following steps of: filtering and amplifying a received underwater sound signal by adopting a special device, then converting the underwater sound signal into an underwater sound digital signal in an analog manner, then carrying out refined frequency spectrum estimation to obtain a frequency corresponding to a signal amplitude maximum value of the signal in a specific frequency band, and calculating a signal-to-noise ratio of the signal at the frequency; performing target detection; doppler frequency shift is calculated and a target azimuth angle is estimated; estimating a motion trend relative to the target; and calculating a rudder angle, sending the rudder angle to a main control computer of ...

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Номер записи: 11