摘  要


本文設(shè)計(jì)的是基于SMS短消息的遠(yuǎn)程無(wú)線數(shù)據(jù)傳輸系統(tǒng)，系統(tǒng)以GSM網(wǎng)絡(luò)為平臺(tái)，通過(guò)SMS短消息技術(shù)進(jìn)行數(shù)據(jù)傳輸。文中首先對(duì)GSM網(wǎng)絡(luò)和SMS短消息業(yè)務(wù)技術(shù)做出簡(jiǎn)要的介紹，進(jìn)而給出了能夠?qū)崿F(xiàn)遠(yuǎn)程無(wú)線數(shù)據(jù)傳輸?shù)南到y(tǒng)設(shè)計(jì)方案。本文詳細(xì)介紹了以AT89C51為核心控制器，TC35i為短信收發(fā)引擎的短信收發(fā)器，用它把系統(tǒng)接入GSM網(wǎng)絡(luò)來(lái)完成無(wú)線數(shù)據(jù)傳輸，最后給出了系統(tǒng)實(shí)現(xiàn)的硬件結(jié)構(gòu)圖和軟件流程圖。

本系統(tǒng)具有技術(shù)先進(jìn)、適用范圍廣、運(yùn)行成本低的特點(diǎn)。只要在GSM網(wǎng)絡(luò)覆蓋的范圍之內(nèi)，就可以利用SMS進(jìn)行遠(yuǎn)程數(shù)據(jù)的傳輸，無(wú)需昂貴的無(wú)線網(wǎng)絡(luò)架設(shè)投資，可以大大降低成本。系統(tǒng)較好地利用了GSM網(wǎng)絡(luò)系統(tǒng)覆蓋范圍廣，通信誤碼率低，費(fèi)用少等特點(diǎn)，實(shí)現(xiàn)了一個(gè)經(jīng)濟(jì)、高效的遠(yuǎn)程數(shù)據(jù)傳輸系統(tǒng)平臺(tái)。

關(guān)鍵詞：SMS；遠(yuǎn)程傳輸；TC35i模塊；AT89C51單片機(jī)


 


 


 


 


 


 


 


 




Abstract


This design is Remote Wireless Data Transmission System based on the SMS short message.This system uses GSM network as a platform,though SMS short message technology transferring data.First of all this paper makes a brief introduction about the GSM network and SMS short message service technology,then gives a system design method toachieve remote wireless data transmission.This paper describes the SMS Transceiver which regards AT89C51 MCU as the core controller,TC35i module as the messaging engine.Using it can access the system to the GSM network to complete wireless data transmission.Finally we obtain hardware structure and software flow chart.

This system has the characteristic including advanced technology,wide application and low running costs.As long as it is within the scope of the GSM network covering,we can use SMS for remote data transmission,and without expensive wireless network investment,this system can significantly reduce the cost.System better using the GSM network wide range,low communication error rate,low cost achieve an economic and efficient platform for remote data transmission system.

Keywords:SMS; remote data transmission;TC35i module;AT89C51 MCU


 


 


 


 


 


 




目  錄


引  言 1

第一章 GSM網(wǎng)絡(luò)和SMS服務(wù)介紹 3

1.1 GSM網(wǎng)絡(luò) 3

1.2 SMS簡(jiǎn)介 3

1.2.1 SMS的定義 4

1.2.2 SMS體系結(jié)構(gòu) 4

1.2.3 SMS數(shù)據(jù)通訊原理 5

1.2.4 SMS的特點(diǎn) 6

第二章 基于SMS遠(yuǎn)程數(shù)據(jù)采集系統(tǒng)的設(shè)計(jì)方案 7

2.1 概述 7

2.2 系統(tǒng)方案的設(shè)計(jì) 7

2.3 短信收發(fā)模塊 7

第三章 系統(tǒng)的硬件設(shè)計(jì) 9

3.1 GSM模塊的電路設(shè)計(jì) 9

3.1.1 GSM模塊TC35i簡(jiǎn)介 9

3.1.2 TC35i的硬件設(shè)計(jì) 11

3.2 AT89C51的電路設(shè)計(jì) 12

3.2.1 AT89C51單片機(jī) 12

3.2.2 AT89C51的復(fù)位電路 14

3.2.3 AT89C51的時(shí)鐘電路 14

3.3 電源電路 15

3.4 AT89C51與TC35I連接圖 16

3.5 AT89C51的串口擴(kuò)展 17

第四章 系統(tǒng)的軟件設(shè)計(jì) 18

4.1 軟件的設(shè)計(jì)思想 19

4.2 軟件的主流程圖 19

4.3 模塊中與SMS相關(guān)的AT指令介紹 20

4.3.1 AT命令簡(jiǎn)介 20

4.3.2 PDU編碼規(guī)則 21

結(jié)  論 23

參考文獻(xiàn) 24

謝  辭 26