The invention discloses a radar trajectory data-based expressway easy confusion event discrimination method, which comprises the following steps of: collecting the driving trajectory of each vehicle and the position information of real-time vehicles on the current road surface, judging whether the vehicles stop, storing the stopped vehicles into a set, stopping the vehicles, counting the number of vehicles around the stopped vehicles, and if a vehicle multi-constraint condition is met, judging whether the vehicles stop or not; if yes, continuing to judge the average speed of the surrounding vehicles, judging whether the vehicle is in a congestion state according to the speed, and entering the step 4; if the vehicle multi-constraint condition is not met, entering the step 5; a deceleration grading mode is adopted, so that the distinction degree of each event is improved; a multi-dimensional analysis and discrimination mode of factors such as traffic flow, deceleration, distance, parking duration, deceleration duration, course angle, pedestrians and the like is adopted for each event, a hierarchical analysis method is adopted, congestion, vehicle accidents, vehicle road accidents and illegal parking are discriminated more comprehensively and carefully, and the purposes of low cost, high reliability, high precision, all weather and full coverage discrimination of easy confusion events are achieved.
本发明公开了一种基于雷达轨迹数据的高速公路易混淆事件判别方法,收集各车的行驶轨迹及当前路面上实时车辆的位置信息,判断车辆是否停驶,将停驶车辆存入集合,有车辆停驶,统计停驶车辆周围车辆的数量,若符合车多约束条件,则继续判断周边车辆的平均速度,依据速度判断是否为拥堵状态,进入步骤步骤4;若不符合车多约束条件,进入步骤5;采用对减速度分级的方式,提高各事件的区别度;对各事件采用车流量、减速度、距离、停车时长、减速时长、航向角、行人等因素多维度分析判别的方式,采用分级分析的方法,更全面细致的判别拥堵、车车事故、车路事故、违停,实现低成本、高可靠性、高精度、全天候、全覆盖判别易混淆事件的目的。
Radar trajectory data-based expressway easy-to-confuse event discrimination method
一种基于雷达轨迹数据的高速公路易混淆事件判别方法
2023-10-10
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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