GPRS MODEM動(dòng)態(tài)鏈接庫(kù)的設(shè)計(jì)與開(kāi)發(fā)

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摘要

隨著計(jì)算機(jī)信息技術(shù)、通信技術(shù)的發(fā)展，原來(lái)基于有線傳輸?shù)耐ㄓ嵎绞皆絹?lái)越不能滿足實(shí)際通訊中的需要，它的覆蓋范圍、服務(wù)質(zhì)量等弊端也越來(lái)越顯露出來(lái)，特別是對(duì)于某些大型應(yīng)用系統(tǒng)如遠(yuǎn)程數(shù)據(jù)采集系統(tǒng)、遠(yuǎn)程監(jiān)控系統(tǒng)等，實(shí)現(xiàn)更是困難重重。
近些年來(lái)，GSM無(wú)線通訊網(wǎng)絡(luò)發(fā)展迅速，目前基本上覆蓋全國(guó)，網(wǎng)絡(luò)質(zhì)量也在不斷提高。利用GSM網(wǎng)絡(luò)來(lái)實(shí)現(xiàn)遠(yuǎn)程的數(shù)據(jù)通訊，對(duì)于我們實(shí)現(xiàn)無(wú)線通信有著十分重要的意義。
利用GSM/GPRS MODEM來(lái)實(shí)現(xiàn)遠(yuǎn)程通訊，是最基本，也是最主要的方式，本設(shè)計(jì)主要設(shè)計(jì)和實(shí)現(xiàn)GSM/GPRS MODEM的動(dòng)態(tài)鏈接庫(kù)。負(fù)責(zé)底層通訊的動(dòng)態(tài)鏈接庫(kù)用于實(shí)現(xiàn)串口與數(shù)據(jù)庫(kù)之間的數(shù)據(jù)傳遞，采用Visual C++6.0開(kāi)發(fā)。動(dòng)態(tài)鏈接庫(kù)提供通用的函數(shù)借口，其他程序可以直接調(diào)用。
該設(shè)計(jì)為利用GSM/GPRS MODEM來(lái)實(shí)現(xiàn)無(wú)線通訊的系統(tǒng)提供了良好的技術(shù)支持。

關(guān)鍵詞：GSM/GPRS MODEM；動(dòng)態(tài)鏈接庫(kù)；無(wú)線通信

部分參考文獻(xiàn)

[13]肖宏偉．Visual C++6．0實(shí)效編程百例[M]．北京：人民郵電出版社，2002。
[14]王建華，張煥生，等（譯）。MFC Visual C++6 編程技術(shù)內(nèi)幕[M]．北京：機(jī)械工業(yè)出版社，2002。
[15]北京博彥科技發(fā)展有限公司（譯）。Microsoft Corporation.Visual C++6.0 MFC應(yīng)用程序開(kāi)發(fā)[M]。北京：清華大學(xué)出版社，2002。


















Abstract

As the computer information technology and correspondence technology develop, the former correspondence way which is on basis of wired transportation becomes more and more unsatisfied with actual communication, and its coverage and service quality etc. shortages have more and more appeared, especially the realization of some large applied systems such as long-distance data collection, remote monitor are difficult to achieve.
In recent years, GSM wireless communication network has developed fast. At present, it covers the whole country and its network quality has been improving constantly. Making use of GSM network to achieve long-distance data communication plays an important roll in realization of wireless communication.
This design offers a good support to realize wireless correspondence by taking advantages of GSM/GPRS MODEM.

KEY WORDS：GSM/GPRS MODEM；Dynamic Link Library;Telecommunication













目錄
第一章 緒論________________________________________________________________1
1.1 課題背景______________________________________________________1
1.2 本設(shè)計(jì)的目的和意義____________________________________________2
1.3 數(shù)據(jù)通訊傳輸方式的選擇________________________________________4
第二章 GSM系統(tǒng)和GPRS網(wǎng)絡(luò)________________________________________________7
2.1 GSM系統(tǒng)_______________________________________________________7
2.1.1 GSM系統(tǒng)概述_______________________________________________7
2.1.2 GSM短信業(yè)務(wù)_______________________________________________8
2.1.3 GSM數(shù)據(jù)業(yè)務(wù)______________________________________________10
2.2 GPRS網(wǎng)絡(luò)_____________________________________________________11
2.2.1 概述_____________________________________________________11
2.2.2 GPRS網(wǎng)絡(luò)及其主要優(yōu)勢(shì)_____________________________________11
第三章 GSM/GPRS MODEM介紹______________________________________________13
3.1 基于GPRS的無(wú)線數(shù)據(jù)傳輸方式______________________________________13
3.1.1 GPRS無(wú)線通信實(shí)現(xiàn)原理_____________________________________13
3.1.2 GPRS基本工作流程_________________________________________14
3.2 GPRS調(diào)制解調(diào)器與AT指令集_______________________________________15
3.2.1 GSM/GPRS調(diào)制解調(diào)器_______________________________________15
3.2.2 AT指令___________________________________________________17
第四章 動(dòng)態(tài)鏈接庫(kù)（DLL）_______________________________________________20
4.1 DLL的概念__________________________________________20
4.2 動(dòng)態(tài)鏈接庫(kù)HRHGSM.dll的創(chuàng)建___________________________21
4.3 DLL的鏈接____________________________________________23
結(jié)束語(yǔ)________________________________________26
致謝__________________________________________27
參考文獻(xiàn)___________________________________________________________________28
附件1動(dòng)態(tài)鏈接庫(kù)使用程序說(shuō)明_____________________________________________29
附件2 GSM MODEM演示程序_________________________________________________31