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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.
07-04-2023 дата публикации

Cable defect time-frequency analysis method and system based on improved Wigner distribution, and medium

Номер: CN115932470A
Автор: YANG FAN, HE JIAXING, BANG GUN, WANG HONGBIN, HAN JIE, TONG RUI, HUANG BAI
Принадлежит:

The invention discloses a cable defect time-frequency analysis method and system based on improved Wigner distribution and a medium, and the method comprises the following steps: generating a Gaussian envelope frequency-adjustable signal as an incident signal by using a signal generator, transmitting the incident signal at the head end of a cable to be detected after setting the parameters of the incident signal, and collecting a reflected signal by using a signal collector; carrying out denoising and filtering processing on the incident signal and the reflected signal to obtain an incident reflected signal time domain superposed signal and a waveform; performing time-frequency domain expansion analysis on the time-domain superposed signal by adopting an improved Wigner distribution algorithm to obtain time-frequency distribution and waveform of the time-domain superposed signal; and solving a time-frequency domain cross-correlation function by using the time-frequency distribution of the ...

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Номер записи: 1
16-05-2023 дата публикации

Guide rail type mobile robot for carrying switch cabinet

Номер: CN116119268A
Автор: BANG GUN, MO WENXIONG, YIN KUANG, WANG HONGBIN, HE JIAXING
Принадлежит:

The invention relates to the technical field of switch cabinet detection, and particularly discloses a guide rail type mobile robot for carrying a switch cabinet to move, a rack is laid on a working station plane, the working cabinet is placed on a rotating mechanism, and a driving gear is driven to rotate so as to drive a driven gear to rotate; the driven gear drives the rotating mechanism and the switch cabinet on the rotating mechanism to move along the rack, after the switch cabinet is conveyed to a detection point, the robot stops walking, at the moment, the rotating mechanism is controlled to drive the switch cabinet to rotate, the detection surface of the switch cabinet rotates to be opposite to detection equipment, and detection work can be started; as the switch cabinet has high requirement on position precision during detection, the stop position and angle of the switch cabinet can be ensured to meet the state requirement required by the detection equipment through the high-precision ...

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Номер записи: 2
30-05-2023 дата публикации

Air tightness detection device and air tightness detection method

Номер: CN116183129A
Автор: HE JIAXING, ZENG WEI, HE GUOWEN, HE LIUQING
Принадлежит:

In order to solve the problem of inaccurate detection in the field of air tightness detection, the invention discloses an air tightness detection device, which comprises a base, the blocking piece is arranged on the base, a first vent hole and a second vent hole are formed in the blocking piece, and the first vent hole and the second vent hole are used for being communicated with the two ends of the workpiece inner cavity pipeline respectively; the pressing power piece is used for driving the workpiece to be attached to the plugging piece so that the plugging piece can seal a pipeline of the workpiece, the pressing power piece is provided with a pressure sensor, and the pressure sensor is used for detecting the pressure of an inner cavity of the workpiece; the ventilation mechanism comprises an air source, a plurality of airflow control valves and a flow sensor, the airflow control valves communicate with the first ventilation holes, the flow sensor is used for detecting the airflow flow ...

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Номер записи: 3
21-07-2023 дата публикации

Single switch circuit based on relay coil wireless charging system and control method

Номер: CN116470657A
Автор: HE JIAXING, ZHOU FENGXIANG, WANG HONGBIN, BANG GUN, YANG FAN, ZHANG MIN
Принадлежит:

The invention discloses a single switch circuit based on a relay coil wireless charging system and a control method. The circuit comprises a direct-current voltage source, a high-frequency inverter, a transmitting coil L1, a repeating coil L2, a receiving coil L3, a full-bridge rectifier and a single-switch electric energy converter, by introducing a switch tube and an output filter capacitor, compared with a traditional DC/DC converter, the number of switch tubes and the number of filter inductors are reduced, so that the cost, the weight and the size of a system are greatly reduced; in addition, the control method does not need to establish communication between the energy transmitting side and the energy receiving side, the control effect is good, and implementation is easy. The wireless charging system based on the relay coil and the single-switch electric energy converter are modeled, the relation between the input voltage of the wireless charging system and the output voltage of the ...

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Номер записи: 4
11-04-2023 дата публикации

Electromagnetic head and electromagnetic valve

Номер: CN115949796A
Автор: HE JIAXING, HE QIBIN
Принадлежит:

The invention relates to the technical field of automatic control of valves, and discloses an electromagnetic head and an electromagnetic valve. The motor comprises a shell, a motor base, a circuit board, a coil and a shielding layer, the coil is provided with an inner cavity and is provided with a first connecting end and a second connecting end; the electrode part is provided with a common pin and connecting pins, the electrode part is arranged in the shell, the common pin is electrically connected with the first connecting end of each coil at the same time, and each connecting pin is electrically connected with the corresponding second connecting end; and the circuit board is arranged in the shell and is provided with a voltage-regulating anti-interference module. The structure that at least two coils share one common pin is adopted, the number of the pins can be reduced, and the size of the whole electromagnetic head is reduced; the electromagnetic mutual inductance interference between ...

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Номер записи: 5
21-07-2023 дата публикации

Wireless charging device configuration method, device and equipment and readable storage medium

Номер: CN116470624A
Автор: HE JIAXING, BANG GUN, YANG FAN, ZHOU FENGXIANG, ZHANG MIN
Принадлежит:

The invention provides a wireless charging device configuration method, device and equipment and a readable storage medium, when a battery of a sensor of a cable channel needs to be charged, an equivalent output load of a three-coil wireless energy transfer system can be adjusted by using a three-coil wireless charging equivalent model; the output voltage of the system reaches the rated charging voltage of a battery of a sensor of the wireless charging device by adjusting the switch duty ratio of a direct-current converter of the wireless charging device; after the rated charging voltage of the battery of the sensor of the wireless charging device is adjusted, the output power and efficiency of the system can be determined by using the three-coil wireless charging equivalent model; determining the three-coil wireless energy transfer system and each loop current according to the efficiency and the output power of the three-coil wireless energy transfer system; therefore, the withstand voltage ...

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Номер записи: 6
02-06-2023 дата публикации

Distribution network stripped cable live-line fault detection and risk assessment system and method

Номер: CN116203468A
Автор: YANG FAN, WANG HONGBIN, HAN JIE, BANG GUN, TONG RUI, HE JIAXING, HUANG BAI
Принадлежит:

The invention discloses a distribution network stripped cable live-line fault detection and risk assessment system and method. The system comprises a field information input module, a fault online detection module and a risk assessment module. The field information input module comprises a project information input unit, a cable information input unit and a system setting information unit; the fault online detection module comprises a communication parameter setting unit, a detection parameter setting unit, a detection waveform display unit and a fault information display unit; the risk assessment module comprises a cable parameter display unit, a life prediction unit, a risk assessment result unit and a function operation unit. According to the invention, by creating a detection item, on-line fault detection and risk assessment are carried out on the distribution network stripped cable, and health management of the stripped cable is realized; meanwhile, the cable state can be monitored ...

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Номер записи: 7
14-07-2023 дата публикации

Power distribution network multi-element source load prediction method based on cloud simulation platform

Номер: CN116435990A
Автор: HE JIAXING, ZHOU FENGXIANG, WANG HONGBIN, BANG GUN, YANG FAN, ZHANG MIN
Принадлежит:

The invention relates to a power distribution network multi-element source load prediction method based on a cloud simulation platform. The power distribution network multi-element source load prediction method comprises the following steps: S1, analyzing factors influencing charging of an electric vehicle; s2, analyzing charging modes of various electric vehicles; s3, utilizing Monte Carlo simulation to establish an electric vehicle charging load prediction model, obtaining charging load curves of various types of electric vehicles, and superposing the charging load curves to obtain a total load curve; s4, analyzing influence factors of the generated power; s5, establishing a generation power prediction model by using a BP neural network; and S6, verifying the prediction model by using a cloud simulation platform. According to the method, accurate prediction of regional photovoltaic and electric vehicle loads is realized, the method has important significance on optimal power flow of a ...

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Номер записи: 8
28-07-2023 дата публикации

Active power distribution network voltage control method and system based on deep learning, and medium

Номер: CN116505575A
Автор: HE JIAXING, ZHOU FENGXIANG, ZHANG MIN, YANG FAN, WANG HONGBIN, BANG GUN
Принадлежит:

The invention relates to the technical field of power distribution network optimization, in particular to an active power distribution network voltage control method and system based on deep learning and a medium. According to the active power distribution network voltage control method, a distributed power supply and energy storage system power flow constraint model is established in a power distribution network, active power distribution network voltage control of day-ahead and intra-day time scales is carried out on the basis, and reactive power output of the distributed power supply and charging and discharging of the energy storage system are scheduled. And a deep learning long-short-term memory network is adopted as a solving algorithm, so that under the condition of separating from a complex mathematical model, the precision of optimization control is ensured, and meanwhile, rapid scheduling can be realized.

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Номер записи: 9
07-04-2023 дата публикации

Cable low-cost repair decision-making method

Номер: CN115936669A
Автор: YANG FAN, WANG HONGBIN, BANG GUN, HE JIAXING, HUANG BAI, HAN JIE, LIANG GUOKAI
Принадлежит:

The invention relates to the field of power cable engineering, in particular to a low-cost cable repair decision-making method, which comprises the following steps of: monitoring the insulation state of a cable on line through a spread spectrum time domain reflection method, recording the end-of-life time of the cable, and collecting the end-of-life time of a plurality of different cables; establishing a cable reliability model according to the Weibull distribution rule of the end-of-life time of the plurality of different cables; establishing an average cost rate model according to the preventive repair probability, the fault probability, the preventive repair cost and the fault repair cost; and introducing the chaos factor into a mathematical model of a chimpanzee optimization algorithm, performing optimization solution on the target function through the chaos chimpanzee optimization algorithm according to the preventive repair cost and the fault repair cost to obtain a minimum average ...

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Номер записи: 10
06-06-2023 дата публикации

FDR test line automatic switching device and head end impedance mismatching elimination method and system thereof

Номер: CN116223981A
Автор: YANG FAN, HE JIAXING, HAN JIE, TONG RUI, ZHOU QILIN, WANG HONGBIN, BANG GUN
Принадлежит:

The invention discloses an FDR test line automatic switching device and a head end impedance mismatching elimination method and system thereof. The device comprises an upper computer, a control CPU (Central Processing Unit), a three-phase connecting line and a plurality of line control relay switches, the control CPU is in communication connection with the upper computer, and the control CPU is respectively connected with the line control relay switches; the line control relay switch is used for controlling the on-off of a three-phase connecting line; the three-phase connecting line is respectively connected with the A phase, the B phase and the C phase of the cable to be tested. Due to the fact that a difference exists between a measured value and a theoretical value of a head-end reflection coefficient spectrum due to access of the device and a test clamp, the invention further provides a head-end impedance mismatching elimination method. The method comprises the steps that a head-end ...

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Номер записи: 11