论文部分内容阅读
本系统实现了将模拟音频信号与温度数字信号通过信号放大处理并且滤波以后;将混合信号加载到红外管上进行调制;并将调制信号经红外线发射且传输距离至少2m;将调制信号通过红外光通信中继进行转发;再通过红外线接收电路将调制信号接收到并解调;语音模块对声音进行处理并无失真的通过喇叭放出声音;温度通过单片机显示在1602上面等等功能。本系统采用单片机AT89S51系统为控制核心,红外光通信装置总体设计包括微处理器主控模块、显示电路、红外发射模块、红外接收模块、温度处理模块、红外光通信中继转发模块、声音放大滤波模块等等。
The system realizes the analog audio signal and temperature digital signal through the signal amplification processing and filtering; the mixed signal is loaded on the infrared tube to modulate; and the modulated signal is transmitted by infrared and the transmission distance of at least 2m; the modulated signal through the infrared light Communication relay for forwarding; and then through the infrared receiver circuit to receive and demodulate the modulation signal; voice module to deal with the sound without distortion through the speaker release sound; temperature through the single-chip display above 1602 and so on. The system uses single-chip microcomputer AT89S51 system as the control core, the overall design of infrared communication devices including microprocessor master control module, display circuit, infrared transmitter module, infrared receiver module, temperature processing module, infrared optical communication relay module, audio amplification filter Modules and more.