The invention relates to the technical field of automobile control, in particular to a ramp speed limit recognition method. The method comprises steps of judging whether the vehicle runs at a high speed or an elevated road; if yes, the lane position where the vehicle travels is judged; and if the vehicle runs on the rightmost lane, judging whether the currently recognized speed limit sign is a ramp speed limit sign or not according to the change condition of the right lane line of the vehicle, the running condition of the vehicle and the comparison condition of the currently recognized speed limit sign and the previous recognized speed limit sign. The ramp speed limit recognition method is simple and small in logical operation amount, does not cause burden to a control system, can accurately and quickly recognize ramp speed limit, is high in accuracy, and has great popularization value.

    本发明涉及汽车控制技术领域,具体地指一种匝道限速识别方法。判断车辆是否行驶于高速或是高架;若是,判断车辆行驶的车道位置;若车辆行驶在最右侧车道,且根据车辆右侧车道线变化情况、车辆运行情况、当前识别的限速标志与前一个识别的限速标志对比情况来判断当前识别的限速标志是否为匝道限速标志。本发明的匝道限速识别方法简单,逻辑运算量小,不会给控制系统造成负担,能够准确对匝道限速进行快速识别,准确度高,具有极大的推广价值。


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    Title :

    Ramp speed limit identification method


    Additional title:

    一种匝道限速识别方法


    Contributors:
    CHEN SONG (author) / LI HONGLIN (author) / ZHANG HUASANG (author)

    Publication date :

    2020-08-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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