文档介绍：摘要
随着通信技术的日益发展,电源的控制从以前单一的有线开关控制方式,逐步转变到有线和无线等多种控制结合的方式。因此利用无线电技术开发一种有效、节能、便捷的电源控制系统是很有必要的。论文介绍了一种无线电源控制系统的研究与设计,系统采用AT89C2051型单片机控制,利用RS-232C串口,MAX813L看门狗计数器,由TDQ-3型的高频调谐器和TA7680组成的中频放大、同步检波电路,实现了定时发射无线电波来控制电源的开关。论文首先介绍了无线遥控的基本理论和发展应用,接着进行系统的硬件设计,在天线发射电路的设计中,通过设计编码电路、无线发射模块、天线的设计来实现无线电在单片机中的编码与发射功能;在无线接收电路中,通过设计接收电路、无线接收电源电路、解码电路、驱动电路、固态继电器的应用来实现无线电信号的接收与解码,来控制电源的开关功能。然后进行系统的软件设计,通过研究设计发射部分和接收部分的流程图与程序,来实现软件在硬件当中的应用,实现其功能。最后进行系统抗干扰的设计,通过研究一些干扰源的原理,来了解它们的特性,并在系统中克服各种干扰,使系统的安全性、稳定性更高。
关键词:无线电;89C2051单片机;电源控制
ABSTRACT
Along munication flourishing more and more daily, the power source control from before sole wired switch control mode, transformed gradually to wired and wireless and so on many kinds of control union uses the radio technical development one kind effective, the energy conservation, the convenient power source control system has the necessity very paper introduced one kind of wireless power source control system research and the design, the system uses at89C2051 monolithic integrated circuit control, uses the RS-232C serial port, the MAX813L watch-dog counter, posed the supersonic amplification, the synchronization detecting circuit by the TDQ-3 high frequency tuner and TA7680, realized has fixed time launched the radio wave to control the power source the switch. The paper first introduced the wireless remote control elementary theory and the development application, then carry on the system the hardware design, in the antenna transmission circuit design, through the design code electric circuit, the wireless launch module, the antenna design realizes radio in the monolithic integrated circuit code and the launch function; In the wireless accepting circuit, through the design accepting circuit, the wireless receive power circuit, decodes the electric circuit, actuates the electric circuit, the solid state relay application to realize the radio signal receive and the decoding, controls the power source the switch c