The invention relates to the technical field of traffic management, and discloses a crossroad anti-collision early warning method based on trajectory prediction, and the method comprises the following steps: 1, a data collection module is connected with a monitoring device to obtain image data of driving trajectories of all traffic participants in a crossroad, and the image data are screened to form a trajectory data set; step 2, the data acquisition module performs analysis to obtain prediction trajectories of all traffic participants in the next 8s, and forms a prediction data set; step 3, the conflict detection module calculates and generates trajectory coincidence points, analyzes to obtain traffic participant data with intersecting trajectories, and judges whether the trajectory coincidence points have conflict points or not through time limitation, so that the accuracy of predicting trajectory conflicts is high; 4, if a conflict point exists, a conflict detection module calculates collision arrival time; and step 5, the anti-collision early warning module calculates and generates an early warning threshold value, compares the collision arrival time with the early warning threshold value and outputs a corresponding early warning signal, and two-stage early warning is high in driving safety.

    本发明涉及交通管理技术领域,且公开了一种基于轨迹预测的十字路口防撞预警方法,该方法包括以下步骤:步骤一、数据采集模块连接监控装置获取十字路口中所有交通参与者行驶轨迹的影像数据,筛选组成轨迹数据集;步骤二、数据采集模块分析得到所有交通参与者未来8s的预测轨迹,并组成预测数据集;步骤三、冲突检测模块计算生成轨迹重合点,分析得到轨迹相交的交通参与者数据,再经过时间限定,判断轨迹重合点是否存在冲突点,预测轨迹冲突准确度高;步骤四、若存在冲突点,冲突检测模块计算碰撞到达时间;步骤五、防撞预警模块计算生成预警阈值,再将碰撞到达时间对比预警阈值,并输出对应的预警信号,两级预警行车安全性高。


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    Title :

    Crossroad anti-collision early warning method based on trajectory prediction


    Additional title:

    一种基于轨迹预测的十字路口防撞预警方法


    Contributors:
    LI YANFENG (author) / BU YUN (author) / GUO LEITAO (author) / WU HUITIAN (author) / YANG YANG (author) / FENG PEILIN (author)

    Publication date :

    2024-12-06


    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 / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



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