基于AT89C51单片机的家用电器电话遥控装置

电子信息工程论文编号:DZXX060  论文字数:14896,页数:38

目   录

摘　要 I
Abstract II
第一章  绪论 1
1. 1 设计任务及要求 1
1. 2单片机硬件系统设计原则 2
1. 3  AT89C2051单片机简介 3
1.3.1 功能特性和主要引脚概述 3
1.3.2 振荡器特性和SFR以及加密介绍 4
1.3.3  AT89C2051工作模式 5
1. 4  MC15436芯片简单介绍 7
1.4.1一般说明 7
1.4.2  MC145436AP 的内部结构框图 7
1.4.3  MC145436AP的管脚功能图 8
1. 5 ISD33060 10
第二章  硬件设计 13
2．1  系统硬件功能分析 13
2．2  振铃检测电路和自动拾机电路 14
2．3  DTMF 信号解码电路 15
2. 4  语音提示电路 15
2. 5  音频放大电路 16
2. 6  继电器控制电路 18
2. 7 硬件原理图 19
第三章  AT89C51单片机控制家电的软件设计 21
3．1软件系统基本思路 21
3. 2 按键识别 21
3. 3 中断响应程序 23
第四章  系统调试 25
4. 1 系统硬件调试 25
4. 2 软件系统调试 26
4. 3 系统问题及解决 27
第五章 总结 28
第六章 致 谢 29
参考文献 30
附录一:软件程序 31

摘　要
 随着社会的发展和科技的进步，越来越多的家用电器进入了人们的生活，这些家用电器给人们的生活带来了很多的方便和享受，同时随着电话在家庭的普及，电话机的功能将进一步得到开发和利用。利用电话实现家用电器遥控是家电未来的发展方向之一。
 本文介绍了一种基于AT89C51单片机的家用电器电话遥控装置，该装置利用双音多频电话机，可以通过电话对家用电器及其工作状况进行控制。它是一种基于DTMF（双音多频）信号的远程智能控制器。它具有振铃检测和模拟摘机，DTMF信号解调和133秒无响应自动挂机的功能。
 设计以AT89C51 单片机作为控制核心的电话远程控制器，重点介绍该控制器的各模块组成、原理及具体实现的电路，该控制器采用现有的电话线路进行通信，无需重新布线且通信距离不受限制，经实际运行表明，该控制器具有运行可靠、成本低、操作方便，适用性强的特点、可以广泛应用于城市社区，具有较大的推广价值。

关键词 AT89C51 单片机；语音芯片；通信DTMF ；解码
Abstract
 With the development of scientific technology，an increasing number of home appliances have come into people's daily lives. These home appliances have brought in much convenience and enjoyment to people's life. The function of telephones will be further utilized and developed along with the popularization of telephones. Home appliances will probably be controlled by the telephone using the remote control technique in the future.
 This paper gave an introduction of such a device, a phone control of home applicances based on AT89C51 SCM. The device took advantage of the DTMF telephone, which was used to handle the operation of the home applicance. It was a kind of long-distance intelligent controller based on the DTMF signal with multiple functions, such as shake-bell examination，pick-up simulation，DTMF signal demodulation，hang-up after no-answer for 113 seconds，etc.
 A telephone remote controller based on AT89C51 single chip computer was designed in this paper，while the modules principles and circuit s in the controller was mainly introduced. It used the existing telephone line for communication without laying line again and without the limit of communication distance. In fact, the controller showed its great advantages in the practical application, such as a high reliability and applicability but a low cost and easy operation. Therefore, the device could be applied to communities in the city and its well worth doing so. 
 
 
Keywords：AT89C51 single chip computer；phonic-chip；communication DTMF ；decode