The invention discloses a rear-end collision prevention system and method for rail transit vehicles in a tunnel, the rear-end collision prevention system comprises two rear-end collision prevention mechanisms respectively arranged at the head and the tail of a train, the rear-end collision prevention mechanism arranged at the head is used as an inquiry mechanism, the rear-end collision preventionmechanism arranged at the tail is used as a response mechanism, and the two rear-end collision prevention mechanisms are connected through a vehicle bus. The rear-end collision prevention method comprises the following steps: defining attributes of a rear-end collision prevention mechanism, searching and selecting a to-be-tracked response mechanism, sending a tracking inquiry signal at a fixed frequency by an inquiry mechanism, receiving the tracking inquiry signal by the to-be-tracked response mechanism, sending a tracking response signal, receiving the tracking response signal by the inquirymechanism, and carrying out distance calculation. And the main control system compares the resolving distance with an alarm threshold and carries out early warning on an over-threshold condition. Thesystem can meet the application requirement of the maximum tracking distance of the current high-speed train, improves the measurement precision, can be applied to various urban rail transit vehicletypes including the high-speed motor train unit, and is wide in application range.

    本发明公开一种隧道内轨道交通车辆防追尾系统和方法,防追尾系统包括分别设于列车头部和尾部的两个防追尾机构,头部所设防追尾机构作为问询机构,尾部所设防追尾机构作为应答机构,两个防追尾机构之间通过车辆总线相连,防追尾方法包括进行防追尾机构属性定义、待跟踪应答机构的搜索和选定、问询机构以固定频率发送跟踪询问信号、待跟踪应答机构收到跟踪问询信号并发送跟踪应答信号、问询机构接收跟踪应答信号并进行距离解算、主控系统将解算距离与报警门限进行比较并对超门限状况进行预警。本发明能够满足当前高速列车最大跟踪距离的应用要求,且提高了测量精度,同时能够应用于高速动车组列车在内的多种城市轨道交通车型,应用范围广泛。


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    Titel :

    Rear-end collision prevention system and method for rail transit vehicles in tunnel


    Weitere Titelangaben:

    一种隧道内轨道交通车辆防追尾系统和方法


    Beteiligte:
    ZHU MENGXIANG (Autor:in) / LIU YOUWEI (Autor:in) / LI JIANFENG (Autor:in)

    Erscheinungsdatum :

    2021-03-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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