Design of Ultrasonic Reversing Distance Meter with Temperature Compensation

摘要

This paper introduces the structure and hardware circuit design of reversing radar system. The real-time display of reversing distance is made by LCD, and different voice prompts are made for different distance sections by voice alarm circuit. In the data processing part, temperature compensation is used to eliminate the effect of temperature on sound velocity and improve the ranging accuracy. It has the advantages of high reliability, simple peripheral circuits, and strong practicability.