The invention relates to a method for autonomously judging whether the running speed of a vehicle on an expressway is lower than the minimum speed limit or not and providing a warning for a driver. The method relates to vehicle-mounted equipment with satellite positioning, and 5G communication functions and a vehicle-mounted camera interface; the vehicle-mounted equipment carries out processing according to a video image of a vehicle-mounted camera in an environment where positioning information cannot be received, and calculates and judges the speed per hour and the speed change trend of thevehicle according to the time when adjacent mileage marks or milestones appear in a video, and givens a warning to the driver to remind the driver to drive within the specified speed range when the vehicle has the trend of being lower than the lowest speed per hour, and meanwhile, uploading related information to a traffic management system after the vehicle runs at a speed lower than the minimumspeed for more than specified time.
本发明涉及高速公路上车辆自主判定其行驶速度是否低于最低限速以及向驾驶员提供警示的一种方法。所述方法涉及一种具有卫星定位、5G通讯以及车载摄像机接口的车载设备,所述车载设备在无法接收定位信息的环境根据车载摄像头的视频图像进行处理,并通过视频中出现相邻里程标志或里程碑的时间来计算判定所述车辆的时速以及车速变化趋势,在所述车辆有低于最低时速的趋势时,给予驾驶员警示,提示其在规定速度范围内行驶。同时,在所述车辆低于最低时速行驶超过规定时间后将相关信息上传交管系统。
Monitoring and warning method for low-speed driving on expressway
一种对高速公路上低速行驶的监测及警示方法
2021-03-05
Patent
Elektronische Ressource
Chinesisch
Expressway vehicle driving distance early warning device
Europäisches Patentamt | 2021
|Driving vehicle safety early warning method and system for expressway
Europäisches Patentamt | 2023
|