The invention provides a rearview mirror multistage anti-dazzling logic circuit and an anti-dazzling method. The rearview mirror multistage anti-dazzling logic circuit comprises a power supply processing circuit, a reversing signal processing circuit, an external illumination condition acquisition circuit, a single-chip microcomputer module and a lens voltage driving circuit. The reversing signal processing circuit converts reversing signals input by the whole vehicle into electric signals capable of being collected by the single-chip microcomputer module. The external illumination condition acquisition circuit converts the external illumination intensity change into an output voltage signal and inputs the output voltage signal to the single-chip microcomputer module; the single-chip microcomputer module controls whether to apply voltage to the two ends of the lens based on the level signal; the single-chip microcomputer module sends a reference voltage for supplying power to the lens to the lens voltage driving circuit based on the voltage signal; the lens voltage driving circuit controls a voltage across the lens based on a reference voltage. By adopting the multi-stage anti-dazzling logic circuit, the dazzling effect of the rearview mirror can be automatically adjusted based on different environments in the using process of the rearview mirror.

    本发明提供了一种后视镜多级防眩目逻辑电路和防眩目方法,包括:电源处理电路、倒车信号处理电路、外部光照条件采集电路、单片机模块和镜片电压驱动电路;倒车信号处理电路将整车输入的倒车信号转化为单片机模块可采集的电信号;外部光照条件采集电路将外部光照强度变化转化为输出电压信号输入至单片机模块;单片机模块基于电平信号控制是否向镜片两端施加电压;以及单片机模块基于所述电压信号向镜片电压驱动电路发送镜片供电的参考电压;镜片电压驱动电路基于参考电压控制镜片两端的电压。通过采用多级防眩目逻辑电路,使得在使用后视镜的过程中可以基于不同的环境自动调整后视镜的眩目效果。


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    Title :

    Rearview mirror multistage anti-dazzling logic circuit and anti-dazzling method


    Additional title:

    一种后视镜多级防眩目逻辑电路和防眩目方法


    Contributors:
    HE CANQUN (author) / LI ZHENGSHENG (author) / MEI YEXIONG (author)

    Publication date :

    2024-05-28


    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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