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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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Применить Всего найдено 5. Отображено 5.
22-08-2023 дата публикации

Model predictive current control method for magnetic flux switching motor

Номер: CN116633228A
Автор: ZHAO GUISHU, ZHOU YUHENG, DING SHUYE, LUO JIAN, ZHANG QINJIE
Принадлежит:

The invention relates to a model predictive current control method for a magnetic flux switching motor. The method comprises the following steps: acquiring a three-phase armature current, a rotor angle and a three-phase armature voltage of the magnetic flux switching motor at a KT moment; the three-phase armature current and the three-phase armature voltage are converted into d-axis and q-axis components through Clark conversion and Park conversion, and the rotor angle is converted into the mechanical angular velocity of the motor through a differential module; the method comprises the following steps: acquiring a positioning torque of a magnetic flux switching motor, performing Fourier analysis to obtain a harmonic wave with a large proportion, calculating to obtain a q-axis injection harmonic current, and transmitting the q-axis injection harmonic current to a model prediction current control algorithm module; and constructing a magnetic flux switching motor model, writing q-axis injection ...

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Номер записи: 1
04-12-2014 дата публикации

METHOD AND DEVICE FOR ACTIVATING AND DEACTIVATING SECONDARY COMPONENT CARRIER IN CARRIER AGGREGATION

Номер: WO2014190885A1
Автор: ZUO, Xiao, ZHANG, Long, ZHOU, Yuheng, MAO, Boya, ZHAO, Yingrui
Принадлежит:

The present invention relates to communication technology. Disclosed are a method and device for activating and deactivating a secondary component carrier (SCC) in carrier aggregation. When the cache data volume reported by an RLC reaches an activation data volume threshold, increasing the count value of an SCC activation counter instead of directly activating an SCC; when determining that a monitor condition is met, and if the ratio of the count value of the SCC activation counter and the report times of the RLC reaches a set activation threshold, then indicating that the cache data volumes reported for multiple times all reach the activation data volume threshold, and then activating the SCC, thus avoiding multiple activations and deactivations during a short time, and improving SCC rate stability.

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Номер записи: 2
22-06-2016 дата публикации

Multi -functional electric power safety helmet of available bluetooth control

Номер: CN0205321341U
Автор: WU XICHUN, LI YANG, CHEN CHANG, CHEN XIAODONG, ZHOU YUHENG
Принадлежит:

... 一种可用蓝牙控制的多功能电力安全帽，包括安全帽本体，安全帽本体上设置有电源模块、单片机模块、超声波测距模块、电场测量模块、LED照明模块、蜂鸣器报警模块、语音提示报警模块、蓝牙模块。所述单片机模块分别连接超声波测距模块、电场测量模块、LED照明模块、蜂鸣器报警模块、语音提示报警模块、蓝牙模块。安全帽本体上外侧安装有功能开关。本实用新型一种可用蓝牙控制的多功能电力安全帽，各个功能模块可以在安全帽本体上控制，也可以借助蓝牙设备，比如：戴在手上的智能手环控制各个功能模块：各个功能模块都可单独投入或退出，方便作业人员根据实际需要开启相应的功能，同时还可增加系统的续航能力。 ...

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Номер записи: 3
18-04-2023 дата публикации

Track traffic device and method for troubleshooting and safe state keeping

Номер: CN115973239A
Автор: ZHANG HUI, GENG JINLONG, FENG HU, HU ZHENHUA, QIN JIEXIN, ZHOU YUHENG
Принадлежит:

The invention discloses a rail transit device and method for troubleshooting and safe state keeping. The rail transit device comprises a collecting unit, a processing unit and a driving unit. The acquisition unit acquires the state of an external object and sends acquired data to the processing unit; the processing unit is used for receiving and processing acquired data of the acquisition unit and external safety communication data, and sending a driving control command to the driving unit; the driving unit drives an external driving object according to the driving control command; when a single safety-related fault occurs, the device can be restarted safely and controllably, so that the availability of the system is enhanced.

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Номер записи: 4
23-06-2023 дата публикации

Preparation method of membrane electrode

Номер: CN116314980A
Автор: ZHUANG LIN, GE CHUANGXIN, ZHOU YUHENG
Принадлежит:

The invention discloses a preparation method of a membrane electrode, which comprises the following steps: firstly, coating or spraying catalyst slurry on a substrate, and drying to form a membrane to obtain a substrate covered with a catalyst membrane; placing the substrate covered with the catalyst film in a substrate stripping agent, and separating the catalyst film from the substrate to obtain the catalyst film; then placing the catalyst membrane in water, taking another electrolyte membrane, placing the electrolyte membrane in water below the catalyst membrane, moving from bottom to top to fish up the catalyst membrane, and attaching the catalyst membrane to the electrolyte membrane under the action of surface tension of water; and finally, attaching a layer of catalyst membrane on the other side of the electrolyte membrane in a manner of fishing up below the catalyst membrane in water by adopting the same manner, so as to obtain the membrane electrode capable of being used for assembling ...

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Номер записи: 5