"基于AT89S52与HC-SR04的超声波测距系统设计与实现"

hly and convenient, simple calculation, easy to achieve real-time control, and can achieve industrial practical requirements in terms of measurement accuracy, so it has been widely used in the measurement of liquid level, well depth, pipeline length, mobile robot positioning, obstacle avoidance and other fields. Based on this, this design attempts to use the AT89S52 with HC-SR04 module to achieve ultrasonic measurement, combined with peripheral circuit modules to achieve distance display and alarm to form an ultrasonic ranging system. This ultrasonic ranging system consists of a single-chip microcomputer timing and control circuit, ultrasonic transmission and reception module, distance measurement display circuit, and alarm circuit. The detailed introduction of the ultrasonic ranging module and the ranging principle of the AT89S52 single-chip microcomputer are provided. The HC-SR04 ultrasonic ranging module is used as the core to realize the transmission and reception of ultrasonic waves. The display circuit adopts digital tubes and transistor display control, and the alarm circuit is composed of a buzzer and transistor. The overall circuit structure is simple, low cost, stable operation, and the measurement accuracy also meets practical application requirements. Keywords: ultrasonic, ranging, single-chip microcomputer, HC-SR04 Overall, this design document provides a comprehensive overview of the ultrasonic ranging system based on single-chip microcontrollers. It outlines the use of ultrasonic waves for distance measurement, and the specific components and circuits used to achieve this. The document also emphasizes the practical applications of ultrasonic ranging, as well as the benefits of using single-chip microcontrollers in such systems. It serves as a valuable resource for engineers and technologists looking to implement similar systems in various industrial and robotics applications.