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当前汽车安全距离自动检测系统存在各有不足,利用激光成像技术优点,设计了激光成像的汽车安全距离自动检测系统。采用激光测距仪采集汽车与障碍物之间的距离数据,并通过激光发送装置和通信总线传入信号调制器,然后信号调制器估计汽车与障碍物之间的相对速度,并反馈给激光测距仪,根据时间检测安全距离是否合理,最后将目标安全距离及其相对速度展示在显示屏上。实验结果表明,该系统的测距误差低于1%的,可以满足实际应用要求。
At present, there are many deficiencies in the automatic detection system of vehicle safety distance. By using the advantages of laser imaging technology, an automatic laser safety imaging system is designed. The laser range finder is used to collect the distance data between the car and the obstacle, and is transmitted to the signal modulator through the laser sending device and the communication bus. Then, the signal modulator estimates the relative speed between the car and the obstacle and feeds back the laser to the laser From the instrument, according to the time to detect the safety distance is reasonable, and finally the target safety distance and its relative speed is displayed on the display. Experimental results show that the system’s ranging error is less than 1%, which can meet the practical application requirements.