基于AT89C52红外通信系统的设计实现

通过单片机控制红外发射管和红外接收管实现音频信号和温度信号的红外通信。语音信号经过转换后变换成数字信号,单片机AT89S52控制红外发射管向外发送,在接收端经过D/A转换,运算放大处理后,输出端通过喇叭还原声音,实现语音通信;温度信号采集使用数字温度传感器DS18B20专用芯片。得到的数据直接通过红外发送,接收端将会对语音数据和红外数据进行识别,然后进行分离,并将温度信号送往显示屏显示。

Design and implementation of infrared communication system based on AT89C52

The infrared communication of audio signals and temperature signals is achieved by using single chip microcomputer to control the infrared transmitting tube and infrared receiving tube. The speech signal can be converted into digital signal, and the single chip microcomputer AT89S52 controls the infrared transmitting tube to send the signal. At the receiving end, through D/A conversion, operation and amplification, the output end reduces the voice with the loudspeaker to realize the voice communication. The temperature signal acquisition uses the special chip of digital temperature sensor DS18B20. The received data are sent via infrared directly. The receiver will identify the voice data and infrared data first, then separate the data and send the temperature signal to the display screen.