Research of Ultrasonic Distance Measurement Device

This paper describes in detail the basic principle of ultrasonic measurement distance system and designs a kind of ultrasonic distance measurement system used in the car . The system includes the lower microcomputer system and the upper microcomputer system. The lower microcomputer system is mainly composed of ultrasonic transmitting circuit, receiving circuit, wireless communicating module and microcomputer. The data from the lower microcomputer system is transmitted to the upper microcomputer system by the wireless way. The design principle of ultrasonic distance measurement circuit is analyzed. The design idea that the data transmitted is also introduced. The system is the characteristics of measurement convenience, fast response and stability.