2摘要:随机单片机及通信技术发展,家庭智能化系统应运而生,主要功能集中在家庭安全报警、电话远程控制、红外集中遥控、自动抄表控制等方面。本课题研究利用电话线路实现对家电的远程遥控装置的设计与构造。该装置主要由单片机构成主控部分,进行信息处理,接收外部操作指令完成对各种信息的识别,形成多种控制信号,依靠接口电路完成对单片机与电话外线和电器设备的接口控制。从而到达电话远程无线遥控家电的目的,实现家电的智能化控制。关键词:电话遥控 单片机控制 双音频解码 语音提示 编码无线发射 液晶显示 温度测量英文介绍:Random single-chip microcomputer and communicationstechnology development, the family of intelligent system cameinto being, the main feature on the home security alarm,telephone remote control, infrared remote control to focus,control, automatic meter reading. Research use of thetelephone lines to achieve remote control of home appliancesDesign and Construction. The device is constituted mainly bythe single-chip control of information processing, theexternal operation command receiving all kinds of informationto complete the identification, the formation of a variety ofcontrol signals, relying on the completion of the single-chipinterface circuit and telephone line interface and electricalequipment control. In order to reach the phone long-distancewireless remote control for the purpose of home appliances,to achieve the intelligent control of household appliances.原理介绍:1. 电源:采用变压器将市电变为交流16V,利用稳压电路为系统提供稳定的+5V与12V直流工作电压。2.振铃监测电路:利用光耦合器将电话线路中的响铃信号变为易于单片机识别的数字信号,供系统计数使用。