基于超声波测距汽车倒车防撞雷达研究

Research on Car Reversing Aid System Based on Ultrasonic Detection

通过声音或更直观的显示告知驾驶员周围障碍物的位置情况,帮助驾驶员扫除视野的死角和视线模糊的缺陷。介绍了一种低成本、高精度、微型化,并有数字显示和声光报警功能的倒车雷达,该倒车雷达根据超声波测距原理研制,采用温度补偿技术、开机自检技术和优化的软硬件技术,将测得的结果送至数码管显示,进行三级声光报警。使驾驶员做到心里有数,提高了泊车和倒车时的安全和效率。

It can use sound or a more direct demonstration to show the driver the obstacle situation around, thus relieving the difficulty of looking forth and back when parking or starting vehicles, and helping the driver to eliminate the dead angle of the field of vision and the flaw of sight. This paper introduces a lowcost, high-accuracy, micro-miniaturized, digital display and acoustic-optics alarm intelligent parking radar. The back-draft radar is developed on the basis of ultrasonic ranging principle. It uses the temperature compensation technology, the opening machine self-checking technology and the optimized software technolo- gy. The results obtained will be delivered to the digital tube for display so as to give three-level acousticoptics alarm. The driver will only sit in the cab efficiency are enhanced enormously. and can know fairly well. Hence the driving security and