基于89S52的超声波测距仪设计

采用超声波传感器设计了一种非接触波测距仪,该系统以89S52为核心处理器产生40kHz振荡频率作为超声波发射信号,采用集成电路CX20106A作为超声波信号接收芯片,同时计算超声波行驶距离并在LCD上实时显示,具有蜂鸣器报警功能,通过仿真及实物调试后,改设计测量精度较高,性能稳定特点。

This paper primarily designs a kind of ultrasonic parking sensor system, based on AT89S52 microprocessor and ultrasonic rang finder. This system can measure certain distance through reflected wave on the fixed condition of the transmitting speed of wave in the air. It has the ultrasonic transmitter and receiver module as the signal generation unit, and it processes the data through the 89S52 microprocessor. It can realize the real-time display on LCD with the extending buzzer alarm. This design has been realized through simulation and physical debugging, and it has the characteristics of high accuracy, stable performance.