家庭远程控制系统研究

A Family Remote Control System Research

文章采用以STC单片机为控制核心,通过硬件电路和软件编程设计,实现远程用户对家电的远程控制。远程用户电话信号经过振铃检测、模拟摘挂机电路后,双音多频解码芯片将电话线上的DTMF信号解码并传送到单片机,单片机控制语音芯片播放语音提示远程用户通过电话按键输入相应的电器控制信号,控制信号通过电话线送到DTMF解码被单片机识别,单片机控制继电器来控制家电。

Uses the remote control system which takes the STC single chip microcomputer as the control core,through the hardware circuit and the software programming design,carries out the purpose of controlling the domestic electric appliances by the remote subscriber.That is after the telephone signal from the remote subscriber running through the ringing signal detection circuit and analog hook circuit,the DTMF signal which is on the telephone line will be decoded by using dual tone multi-frequency decoder chip,and then the decoded signal will be sent to the Single Chip Microcomputer which will control the voice chip playing to prompt the remote subscriber who will input corresponding electric appliance control signal through the telephone pressed key.When the control signal is delivered to the DTMF through the telephone line,it will be decoded,and then the decoded signal will be recognized by the Single Chip Microcomputer which will finally operate the relay to control the electrical appliances.