If a gyroscope detects and judges that a vehicle backs up, a main control unit maps the positioning information of the backed-up vehicle to an off-line map to obtain the number Road of the adjacent road. One side of the road where the reversing vehicle is located is used as a reference system, and the driving direction of the vehicle on the side is determined to be Dir. A rectangular coordinate system is established with the center line of the road Road as the Y axis and a straight line perpendicular to the Y axis and passing through the coordinates of the reversing vehicle as the X axis, the X axis direction points to the coordinates of the reversing vehicle, the Y axis direction is the same as the Dir direction, and the road is divided into four areas. And a map server is accessed, and information of all driving vehicles within 100 meters of a second quadrant and 100 meters of a fourth quadrant of a corresponding road coordinate system is read. And the distance and the intersection time between the vehicles and the reversing vehicle are calculated and then displayed on the LCD display unit, and meanwhile, the vehicle is marked to be red. And the voice prompt unit plays the information of the vehicle with the shortest intersection time with the reversing vehicle. Therefore, when the driver backs up and enters the road, safety prompt is given to the driver in time, and the backing-up safety prompt service is closed after backing-up of the vehicle is finished.
若通过陀螺仪检测并判断车辆倒车时,主控单元将倒车车辆的定位信息映射到离线地图获取邻近道路的编号Road。以倒车车辆所在道路的一侧为参照系,确定该侧车辆行驶方向为Dir。以道路Road的中线为Y轴,以垂直于Y轴并经过倒车车辆坐标的直线为X轴建立直角坐标系,X轴方向指向倒车车辆的坐标,Y轴方向与Dir方向相同,将道路划分成四个区域。访问地图服务器,读取对应道路坐标系第二象限100米和第四象限100米内所有行驶车辆信息。计算这些车辆与倒车车辆的距离和交汇时间后在LCD显示单元上显示,同时将这车辆标记成红色。语音提示单元播放与倒车车辆交汇时间最短的车辆的信息。以此,在驾驶员倒车进入道路时,及时对驾驶员进行安全提示,在车辆倒车结束后关闭倒车安全提醒服务。
Reversing safety reminding system based on satellite positioning
基于卫星定位的倒车安全提醒系统
2021-05-07
Patent
Electronic Resource
Chinese
Commercial truck reversing visual auxiliary reminding device
European Patent Office | 2022
|Reversing reminding method and device, vehicle and storage medium
European Patent Office | 2022
|VEHICLE SAFETY REMINDING DEVICE AND VEHICLE SAFETY REMINDING METHOD
European Patent Office | 2017
|