The invention discloses a low-speed vehicle grading early warning method oriented to an expressway scene. The method comprises the steps that data of ETC gantries are collected and fused to obtain a to-be-processed data set; performing section passing speed feature recognition according to the driving speeds of the vehicles of different vehicle types under the condition of different sections to obtain a section passing speed feature data set; calculating the time difference when the vehicle passes through the service area and updating the passing time length data in the track data; calculating a vehicle passing speed and comparing the vehicle passing speed with a road passing speed under the same condition to judge whether a low-speed vehicle exists; constructing a subminiature membership function to calculate the membership of the current vehicle; calculating weight vectors of the driving behavior safety factors based on the scale table of the mutual proportions of the driving behavior safety factors; and calculating a vehicle section driving behavior score based on the vehicle membership degree and the weight vectors of the factors influencing the driving behavior safety so as to divide different early warning levels. According to the invention, low-speed vehicles are accurately identified and graded early warning is performed.

    本发明公开了一种面向高速公路场景下的低速车辆分级预警方法,方法为:对各ETC门架数据进行采集并进行融合得到待处理数据集;根据不同车辆类型的车辆在不同区段的条件下的行驶速度进行区段通行速度特征识别得到区间通行速度特征数据集;计算车辆经过服务区的时间差并更新轨迹数据中通行时长数据;计算车辆通行速度并与相同条件下的道路通行速度比较判断是否低速车辆;构建偏小型隶属度函数计算当前车辆隶属度;基于影响驾驶行为安全因素相互间比例标度表计算得到影响驾驶行为安全因素的权重向量;基于车辆隶属度和影响驾驶行为安全因素的权重向量计算车辆区段驾驶行为评分,以便划分不同预警等级。本发明准确识别低速车辆并分级预警。


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    Titel :

    Highway scene-oriented low-speed vehicle grading early warning method


    Weitere Titelangaben:

    一种面向高速公路场景下的低速车辆分级预警方法


    Beteiligte:
    MOU HONGLIN (Autor:in) / WANG YANGSHENG (Autor:in) / ZENG JUNCHENG (Autor:in) / MA WENHUA (Autor:in) / WANG XINYUAN (Autor:in) / LUO YONGYU (Autor:in) / HUANG ZHANGWEN (Autor:in) / ZHU HUIXIAN (Autor:in) / TIAN JUNSHAN (Autor:in)

    Erscheinungsdatum :

    16.05.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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