基于GSM和单片机的远程家电控制系统.doc

基于 GSM 和单片机的远程家电控制系统

摘要

GSM (Global System for Mobile communication)移动通信系统是目 前移

动通讯领域中比较成熟、完善、应用最广泛的一种系统。作为 GSM 网络 的基本

服务之一的短消息 SMS (Short Message Service),也受到了越来越 多的系统运

营商和系统开发商的重视，各种基于短信的应用也随之蓬勃发 展起来。本文以

GSM 移动网络作为信息传输平台，设计了一个通过短消息进 行远程家电控制的

组件。

短消息遵循 GSM 的标准 AT 指令集，这里着重介绍了和本课题相关的几条

控制组件的程序采用了前后台的设计方式，由主程序，串口接收中断 服务

程序，定时器中断服务程序等功能模块组成。其中主程序负责和 TC35i 进行短

消息收发。串口接收中断服务程序和定时器中断服务程序共同完成 串口数据的

接收。串口数据接收和 PDU 编码/解码是本软件的两个难点问题。 在软件设计

部分，对这两个问题进行了详细的描述。

本控制模块在软件和硬件上都做了特别的考虑，以保障家电控制的安 全性，

同时支持中文，可以很方便直观的对家用电器进行开关控制。本设 计中，以家

庭的常用电器电饭锅为被控对象，成功的实现了对电饭锅的远 程开启与关闭的

控制。

关键词：短消息家电遥控串口前后台系统

being widely used in Remote Control. During the past several years, system operators

and system developers have been paying more and more attention to the usage of

SMS. This paper designs a remote control component based on SMS.

SMS makes use of standard AT command set of GSM. Here we are interested in

several AT commands of SMS used in the program. This paper completely

implements the standard PDU encoding and decoding functions, and will give a

detailed description later about that

The purpose of this paper is to design a component, which can turn on and turn off

the household appliance by SMS from the host's mobile phone. The hardware of the

component consists of a GSM module named TC35i, a MCU named atmegal6, and a

command included in SMS. The most compelling problems facing the Remote

Control are data receiving of UART and PDU coding/decoding. These problems will

be given a detailed description in the

software designation.

More attention is paid to the designation of the software and the hardware of the

component for nice performance and security. It is friendly with you to control your

home appliance via this component. In this paper we use the microwave oven as an

objection and successfully implement the ON/OFF control on it.

Key Words: SMS Remote Control UART foreground/background system