摘要
针对大货车等大型车辆中传统的超声倒车雷达只能探测水平方向,无法探测地面以及空中障碍物,很容易发生事故的问题,设计了一种基于超声波测距的多方位倒车辅助系统,系统可根据障碍物的类型发出相应的提示。实验测试结果表明:设计的系统不仅能够探测出水平方向和空中障碍物,还能探测出地面沟壑、凸起等。系统在30～400 cm范围内可以实现准确测距,最大误差不超过1. 6%,具有一定的研究和应用价值。
Aiming at problem that traditional ultrasonic wave reversing radar in large cars such as large trucks can only detect the horizontal direction,but cannot detect obstacles on the ground and in the air,which is prone to hit the aerial obstacles,a multi-directional backup-aided system based on ultrasonic wave ranging is designed,and the corresponding voice prompts are issued according to the types of obstacles. The experimental results show that the system can not only detect obstacle in horizontal direction and in the air,but also can detect ground gully and bulge. The system can realize accurate ranging in the range of 30~ 400 cm,the maximum error is less than 1. 6 %,it has certain research and application value.
作者
潘康福
周西峰
郭前岗
PAN Kang-fu;ZHOU Xi-feng;GUO Qian-gang(College of Automation,Nanjing University of Posts and Telecommunication,Nanjing 210046,China)
出处
《传感器与微系统》
CSCD
2019年第1期117-118,121,共3页
Transducer and Microsystem Technologies
关键词
超声波
倒车
多方位
避障
ultrasonic wave
reversing
multidirectional
obstacle avoidance
