The invention discloses an early warning critical distance and braking critical distance determination method and a vehicle cooperative safety interaction system fusing a 4D millimeter wave radar and a monocular vision camera, and belongs to the technical field of vehicle-road cooperative safety interaction. The problems that an existing method for determining the early warning critical distance and the braking critical distance is large in actual error and a vehicle collaborative safety interaction system is lacked at present are solved. The method is divided into three conditions based on a Berkley model and the driving state of a front vehicle, and an early warning critical distance and a braking critical distance are calculated according to the constant speed, deceleration and static conditions of the front vehicle; according to the system, firstly, the front vehicle is recognized, the driving speed information of the front vehicle and the vehicle is obtained, the real-time distance between the vehicle and the front vehicle is monitored, whether the vehicle exceeds the activation critical vehicle speed or not is judged, and then it is determined that the early warning information calculation unit is in a resting or active state; and when the vehicle is active, calculating an early warning critical distance and a braking critical distance and performing corresponding early warning, and if an accident occurs, sharing accident related information.
预警临界距离、制动临界距离确定方法及融合4D毫米波雷达和单目视觉摄像头的车辆协同安全交互系统,属于车路协同安全交互技术领域。解决现有的预警临界距离、制动临界距离确定方法存在与实际误差较大的问题,以及目前缺少一种车辆协同安全交互系统的问题。本发明基于伯克利模型基于前车行驶状态分为三种情况,针对前车匀速、减速、静止情况分别计算得到预警临界距离与制动临界距离;本发明的系统首先对前车进行识别并获取前车与本车的行驶速度信息,监测实时本车和前车车距,判断是否超过激活临界车速进而确定预警信息计算单元处于静息或活跃状态,活跃时计算预警临界距离与制动临界距离并进行相应的预警,若发生事故则对事故相关信息进行共享。
Early warning critical distance and braking critical distance determination method and vehicle cooperative safety interaction system integrating 4D millimeter wave radar and monocular vision camera
预警临界距离、制动临界距离确定方法及融合4D毫米波雷达和单目视觉摄像头的车辆协同安全交互系统
23.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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