一种车辆驻车开门事故预警系统设计及实现

Design and Realization of an Early Warning System for Vehicle Parking and Door Opening Accidents

为了减少家用轿车驻车期间开门引起的交通事故概率,文章设计一款车门防撞预警系统。该系统首先通过陀螺仪确定汽车处于驻车状态,然后利用多普勒雷达对车辆附近的移动目标进行监测,一旦发现移动目标进入设定的阀值距离,开启摄像头获取移动目标的具体信息,该信息一方面被传输到车辆显示屏提醒车主决策,另一方面与雷达信号进行冗余处理,以及时锁止车门。通过对众泰汽车某型号车辆的标定和实测分析,该系统能够有效识别车辆周边的移动目标,在车主的决策支持下,该系统能够有效解决车辆驻车期间的开门事故问题,具有一定的应用前景。

In order to reduce the probability of traffic accidents caused by door opening of family cars during parking,this paper designs a door collision warning system.The system first determines that the car is in a parked state through the gyroscope,and then uses Doppler radar to monitor the moving target near the vehicle.Once the moving target is found to enter the set threshold distance,the camera is turned on to obtain the specific information of the moving target.On the one hand,the information is transmitted to the vehicle display screen to remind the owner of the decision;on the other hand,it is redundantly processed with the radar signal to lock the door in time.Through the calibration and actual measurement analysis of a certain model of Zotye Automobile,the system can effectively identify the moving targets around the vehicle.With the decision support of the owner,the system can effectively solve the problem of door opening accidents during parking of the vehicle,and has certain application prospects.