1、 I 用单片机实现电话远程控制家用电器 学生： 指导教师 内容摘要：目前，人们的生活向着智能化，人性化的方向发展着。越来越多的高科 技进入了我们的生活中。其中家用电器的远程控制也正被推广开来。本着低耗能、无污 染、使用方法简单方便的原则。本文设计的是一种基于 AT89S51 单片机的远程电话控制 系统。该系统是以 AT89S51 为核心、通过现在的个人通信手段，实现基于 PLMN（陆基移 动通信网）和 PSTN（公用电话交换网）的电话远程控制系统。根据 CCITT 及我国标准共 同规定，电话远程控制系统（ITRCS），以 PSTN 与 PLMN 通信网作为传输介质，以部分 标准程控交换信令 （
2、DTMF 双音多频型号， 振铃型号， 回铃音信号等） 作为系统控制命令， 使用户实现在远端通过移动电话或者固定电话发送 DTMF 双音多频信号对近端电器设备 进行远程控制。本次设计的电话远程控制系统不需要再进行专门的布线，不占用无线电 频率资源，从而可避免电磁污染。用户只有输入正确的密码才能控制家电，从而提高了 安全性。该系统设计实用，功能灵活多样，可靠性高，操作方便，可以广泛地应用于家 庭或者其它场所的智能控制。 关键词：AT89S51 远程电话控制 DTMF 智能家电 II Telephone remote control with MCU appliancesTelephone remo
3、te control with MCU appliances Abstract :Abstract : At present , peoples lives toward intelligent, humane direction developing. More and more high-tech into our lives . Remote control of appliances which are also being widely. In line with low energy consumption, pollution-free, easy to use principl
4、es . This design is based on AT89S51 microcontroller remote telephone control system. The system is based AT89S51 as the core, through the present personal communication means to achieve on PLMN ( land mobile communication network ) and the PSTN ( Public Switched Telephone Network ) telephone remote
5、 control system . According to CCITT standards and our common provisions , telephone remote control system (ITRCS), to PSTN and PLMN communication network as a transmission medium , to part of the standard program-controlled exchange signaling (DTMF dual tone multi-frequency model , ring type, ring
6、back tone signals ) as the control command that enables users to achieve the remote telephone via mobile phone or fixed send DTMF dual-tone multi-frequency signal on the proximal electrical equipment for remote control. The design of the telephone remote control system do not need to be a special wiring , not occupied radio frequency resources , thereby avoiding electromagnetic pollution . Users only enter the correct password to control home appliances , thereby increasing safe
