The invention provides a vehicle-mounted ceiling screen which comprises a ceiling screen body, a turnover driving motor and a control circuit board arranged in the ceiling screen body, the ceiling screen body and the turnover driving motor are installed on a roof in a compartment, and the control circuit board is in communication connection with the ceiling screen body and the turnover driving motor. The Hall sensor is used for detecting the real-time angular speed of the turnover driving motor, the acceleration sensor is used for detecting the acceleration of the vehicle in the XYZ direction, the Hall sensor is in communication connection with the control circuit board, and the acceleration sensor is in communication connection with the control circuit board. The control circuit board receives monitoring data of the Hall sensor and the acceleration sensor in real time; the angular acceleration is calculated in real time through the control circuit board so as to control the overturning driving motor to provide the reverse angular acceleration, so that the angular acceleration approaches zero, and the ceiling screen is overturned at a constant speed as far as possible; the acceleration sensor detects extreme conditions and controls the turnover driving motor to quickly fold the ceiling screen under the extreme conditions, so that collision with passengers in a compartment is prevented.

    本发明提供了一种车载吸顶屏,包括吸顶屏和翻转驱动电机,吸顶屏和翻转驱动电机安装于车厢内车顶,以及设于吸顶屏中的控制电路板,控制电路板与吸顶屏和翻转驱动电机通信连接,还包括用于检测翻转驱动电机实时角速度的霍尔传感器和用于检测车辆X\Y\Z方向加速度的加速度传感器,霍尔传感器与控制电路板通信连接,加速度传感器与控制电路板通信连接,控制电路板实时接收霍尔传感器和加速度传感器的监测数据;通过控制电路板实时计算出角加速度,以控制翻转驱动电机提供反向的角角度速,以使角加速度趋近于0,使得吸顶屏尽可能接近于匀速翻转;加速度传感器检测极端情况,在极端情况下控制翻转驱动电机快速收起吸顶屏,防止与车厢内乘客发生碰撞。


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    Title :

    Vehicle-mounted ceiling screen


    Additional title:

    一种车载吸顶屏


    Contributors:
    LIU ANQING (author) / REN KANG (author) / PAN CHENGLONG (author) / WEN ZHIHAI (author) / LI ZHIQIANG (author) / CHEN PENG (author)

    Publication date :

    2024-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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