用单片机实现电话远程控制家用电器-毕业设计.

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（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

Telephone remote control with MCU appliances Abstract :At present , people's 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 principles . 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 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 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 safety. The system design practical, functional flexible , high reliability , easy operation, can be widely used in home or other place of intelligent control.

Keywords: AT89S51 remote telephone control DTMF smart appliances

目录

前言 (1)

1 电话远程控制的背景 (1)

1.1本课题研究的背景 (1)

1.2远程控制的内容 (2)

1.3总体设计分析 (3)

1.3.1 系统总体设计分析 (4)

1.3.2 单片机简介 (4)

2 硬件电路部分 (5)

2.1模拟摘机电路 (5)

2.2振铃检测电路 (6)

2.3控制部分电路 (7)

2.4双音解码电路 (7)

2.5语音提示电路 (9)

2.6电器控制电路 (9)

3 软件模块 (10)

3.1单片机初始化 (11)

3.2振铃计数模块 (11)

3.3语音提示模块 (11)

3.4密码检测模块 (11)

3.5密码修改模块 (12)

4 硬件制作、调试说明 (12)

4.1系统使用说明 (12)

4.2系统应采取的措施 (12)

5 结束语 (12)

附录：整体流程图 (14)

参考文献 (15)