An intersection left turn auxiliary early warning method based on vehicle infrastructure cooperation comprises the steps that S1, a left turn lamp is turned on, left turn auxiliary enabling is turned on, and MAP information is acquired; s2, obtaining an intersection vehicle list, and screening vehicles with collision risks; and S3, calculating the time difference between the vehicle and the coming vehicle arriving at the collision point, and if the time difference is smaller than a preset value, sending a left-turn auxiliary safety prompt to the main vehicle. According to the invention, vehicle information and map information are obtained in real time by using a vehicle-road cooperation technology, and a rich data basis is provided for vehicle early warning and reminding; a vehicle edge collision point model is established, and the vehicle edge point collision distance precision is improved; the method achieves the precise calculation of the collision point through the prediction and analysis of the track of the left-turning vehicle through the map information, improves the collision risk early warning accuracy, and is good in applicability at a cross-shaped intersection or an X-shaped intersection.

    一种基于车路协同的交叉口左转辅助预警方法,包括步骤S1,开启左转向灯,开启左转辅助使能,获取MAP信息;步骤S2,获取路口车辆列表,筛选具有碰撞风险的车辆;步骤S3,计算本车与来向车辆分别到达碰撞点的时间差,时间差小于预设值则给主车发出左转辅助安全提醒。本发明利用车路协同技术,实时获取车辆信息和地图信息,为车辆预警提醒提供丰富数据基础;建立车辆边缘碰撞点模型,提高车辆边缘点碰撞距离精度;通过利用地图信息对左转车辆轨迹的预测分析,实现了碰撞点的精准计算,提高碰撞风险预警准确性,在十字型交叉口或X型交叉口均具有良好的适用性。


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    Title :

    Intersection left turn auxiliary early warning system and method based on vehicle infrastructure cooperation


    Additional title:

    一种基于车路协同的交叉口左转辅助预警系统和方法


    Contributors:
    LUO MINGBO (author) / WANG QIAN (author) / ZHU YUN (author)

    Publication date :

    2022-04-29


    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 / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein




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