The invention relates to the field of intelligent traffic systems, in particular to a curve intersection vehicle meeting collision early warning method and system, and the method comprises the steps: collecting a plurality of vehicle operation data sequences and a curve intersection environment interference degree; obtaining a vehicle state disorder factor according to the vehicle operation data sequence; obtaining a collision risk factor according to the vehicle state disorder factor; obtaining an abnormal factor according to the environment interference degree of the curve intersection; acquiring a plurality of contrast operation data; obtaining a relative noise factor according to the contrast operation data and the collision risk factor; obtaining a predicted collision coefficient according to the relative noise factor and the abnormal factor; obtaining a vehicle collision state estimation value according to the predicted collision coefficient; and performing early warning according to the vehicle collision state estimation value. According to the invention, the possibility that normal vehicle operation data are mistakenly considered as noise is reduced, and the accuracy of vehicle collision early warning is improved.
本发明涉及智能交通系统领域,具体涉及一种弯道路口会车碰撞预警方法及系统,包括:采集若干车辆运行数据序列以及弯道路口环境干扰度;根据车辆运行数据序列得到车辆状态紊乱因子;根据车辆状态紊乱因子得到碰撞风险因子;根据弯道路口环境干扰度得到异常因子;获取若干对照运行数据;根据对照运行数据以及碰撞风险因子得到相对噪声因子;根据相对噪声因子以及异常因子得到预测碰撞系数;根据预测碰撞系数得到车辆碰撞状态估计值;根据车辆碰撞状态估计值进行预警。本发明降低了正常的车辆运行数据误认为噪声的可能性,提高了车辆碰撞预警的准确性。
Curve intersection meeting collision early warning method and system
一种弯道路口会车碰撞预警方法及系统
2024-03-15
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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