The invention discloses an automatic bus-stop reporting device and belongs to the technical field of voice prompt equipment. The automatic bus-stop reporting device comprises a vehicular receiving module, a central processing unit, a voice playing module, and a power supply module. The voice playing module comprises an environmental noise input unit, an environmental noise processing unit, and a voice output unit. The environmental noise input unit is used for converting an analog environmental noise signal to a digital environmental noise signal. The environmental noise processing unit is used for inverting the digital environmental noise signal in order to obtain another digital environmental noise signal with the same amplitude and an inverted phase and performing gain adjustment on the another digital environmental noise signal. The voice output unit is used for receiving and performing digital-to-analog conversion on the digital environmental noise signal subjected to gain adjustment and then superposing an obtained signal on an audio file in a silent environment and outputting the final signal. The automatic bus-stop reporting device automatically adjusts the volume of the voice playing device according to the environmental noise in a bus, thereby being very intelligent.


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    Title :

    Automatic bus-stop reporting device


    Contributors:
    YE FEI (author) / DING YAN (author) / XIAO YUNGEN (author)

    Publication date :

    2015-11-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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