The present disclosure relates to a passenger communication output control circuit for an unmanned metro train. The unmanned metro train is installed with passenger emergency communication units each having a communication button and a communication relay. The communication relay has a normally-closed contact pair and is linked with the communication button in a one-to-one correspondence. When the communication button is pushed down, the communication relay is energized to disconnect the normally-closed contact pair. The normally-closed contact pairs of all the coaches are connected in series to form an emergency communication circuit. Two terminals of the emergency communication circuit are respectively connected to a train power supply and an input/output module of a TCMS in the coach. When the passenger information system works normally, both a communication network and hardwire can transmit the communication signal. When the two communication signals are inconsistent, the communication signal transmitted by hardwire shall prevail.


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    Title :

    PASSENGER COMMUNICATION OUTPUT CONTROL CIRCUIT FOR UNMANNED METRO TRAIN


    Contributors:
    LIU GUOFEI (author) / GAO QI (author) / SHI MENG (author) / PAN XIANING (author) / LIANG RUJUN (author) / ZENG YAOZHENG (author)

    Publication date :

    2021-10-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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