The invention provides a whole-process monitoring node detection circuit for a motorway, and the circuit comprises an analog-digital conversion circuit. The analog-digital conversion circuit is connected with a first power conversion circuit and a second power conversion circuit, wherein the first power conversion circuit is connected with a current sampling circuit, and the second power conversion circuit is connected with a voltage sampling circuit. The other end of the current sampling circuit is connected with a first rectification operational amplification circuit, and the other end of the voltage sampling circuit is connected with a second rectification operational amplification circuit. The first rectification operational amplification circuit and the second rectification operational amplification circuit are connected with to-be-detected equipment. Through current sampling and voltage sampling, the circuit can monitor the operation condition and current condition of monitoring equipment timely and remotely. When a fault happens to one of a plurality of pieces of equipment or the current of one node is too large, the circuit automatically controls the corresponding equipment to be turned off, thereby guaranteeing the stable operation of each piece of equipment.


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    Title :

    Whole-process monitoring node detection circuit for motorway


    Contributors:
    FENG FENGJIANG (author) / SONG GANG (author) / ZHANG JIALONG (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 / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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