Special ultrasonic collision avoidance warning design for reversing

This article introduces an ultrasonic wireless distance measurement system used for car reversing and collision avoidance. The system consists of two parts, the lower computer and the upper computer. The lower computer is mainly composed of ultrasonic transmitting circuit, ultrasonic receiving circuit, wireless transceiver module and single chip microcomputer. The upper computer is composed of single chip microcomputer, wireless transceiver module, display circuit, etc. The difference between the lower computer and the upper computer is Information is transmitted through the wireless transceiver module. This article analyzes the design method of ultrasonic ranging circuit and describes the design idea of ​​using wireless communication technology to realize remote data transmission. The system is convenient, flexible and stable for measuring distance.