單片機(jī)短消息收發(fā)系統(tǒng)

電子信息工程論文編號(hào):DZXX030  論文字?jǐn)?shù):14135,頁數(shù):42

   目   錄
摘要 I
ABSTRACT II
第一章  緒論 1
1.1課題提出的背景和意義 1
1.2本課題的研究現(xiàn)狀和發(fā)展方向 1
1.3本課題的主要設(shè)計(jì)工作 2
第二章 監(jiān)控終端硬件設(shè)計(jì) 3
2.1系統(tǒng)描述 3
2.2 AT89C51模塊 4
2.2.1 主要性能參數(shù) 4
2.2.2 各引腳功能概述 5
2.3 接口模塊 7
2.4 RS-232接口簡(jiǎn)介 8
2.5 無線GSM模塊 11
2.6 外圍電路設(shè)計(jì) 11
2.6.1 復(fù)位設(shè)計(jì) 11
2.6.2 獨(dú)立式按鍵 12
2.6.3 動(dòng)作部分電路 14
2.6.4 電源部分電路 14
2.7小結(jié) 14
第三章  AT命令介紹 16
3.1 AT命令簡(jiǎn)介 16
3.2 PDU數(shù)據(jù)格式分析 17
3.3 常用AT命令詳解 20
3.3.1.短信中心設(shè)置命令：AT+CSCA 20
3.3.2.選擇短信息格式命令：AT+CMGF 20
3.3.3短信息到達(dá)提示命令：AT+CMGS 20
3.3.4閱讀短信息命令：AT+CMGR 21
3.3.5短信息發(fā)送命令：AT+CMGS 21
3.3.6刪除短信息命令：AT+CMGD 22
3.3.7 通信設(shè)置 22
第四章 系統(tǒng)軟件設(shè)計(jì) 23
4.1系統(tǒng)軟件功能 23
4.2 軟件開發(fā)環(huán)境介紹 24
4.3系統(tǒng)軟件流程 24
4.3.1主程序 24
4.3.2鍵盤掃描和去抖動(dòng)子程序 24
4.3.3短信息發(fā)送子程序 25
4.3.4短信息接收子程序 26
第五章 系統(tǒng)調(diào)試 28
5.1 系統(tǒng)硬件調(diào)試 28
5.2 系統(tǒng)軟件調(diào)試 28
第六章  系統(tǒng)設(shè)計(jì)總結(jié) 29
致謝 30
參考文獻(xiàn) 31
附錄1源代碼 32

摘要
 隨著移動(dòng)通信技術(shù)的迅猛發(fā)展以及用戶數(shù)量的急劇增加，利用移動(dòng)通信技術(shù)實(shí)現(xiàn)遠(yuǎn)程控制越來越具有研究?jī)r(jià)值。本文介紹了基于GSM網(wǎng)絡(luò)利用SMS的無線遠(yuǎn)程監(jiān)控終端的原理及其簡(jiǎn)化系統(tǒng)的設(shè)計(jì)實(shí)現(xiàn)。它由一個(gè)無線GSM模塊和一個(gè)以單片機(jī)為核心的監(jiān)控單元組成。無線GSM模塊作為中介通過發(fā)送和接收短信來建立用戶手機(jī)和單片機(jī)控制系統(tǒng)的遠(yuǎn)程通信，而單片機(jī)控制系統(tǒng)則運(yùn)用AT指令通過串口與無線GSM模塊建立通信，達(dá)到實(shí)現(xiàn)系統(tǒng)功能的目的。
 該系統(tǒng)可以通過改進(jìn)應(yīng)用于生產(chǎn)生活的各個(gè)領(lǐng)域，其最突出的優(yōu)點(diǎn)在于它能實(shí)現(xiàn)準(zhǔn)確實(shí)時(shí)的雙向通信，而且由于GSM網(wǎng)絡(luò)覆蓋范圍極為廣泛，因此該系統(tǒng)不受地域環(huán)境的影響，同時(shí)對(duì)于用戶來說該系統(tǒng)的操作極為方便，成本低，效益高。
 本文首先詳細(xì)闡述了單片機(jī)短消息收發(fā)系統(tǒng)的硬件組成和設(shè)計(jì)結(jié)構(gòu)以及單片機(jī)與無線GSM模塊的接口方式，同時(shí)也詳細(xì)介紹了短消息控制指令和短消息收發(fā)的協(xié)議數(shù)據(jù)單元格式進(jìn)行了闡述。最后討論了軟件部分的結(jié)構(gòu)設(shè)計(jì)和所能達(dá)到的功能。
 
 關(guān)鍵詞：無線GSM通信模塊，TC35，AT命令，單片機(jī)AT89C51
 
 
ABSTRACT
 Along with the mobile communication technology swift and violent development as well as the user quantity sharp growth, more and more has the research value using the mobile communication technology realization long-distance control. This article introduced uses SMS based on the GSM network the wireless long-distance monitoring terminal principle and its the simplification system design realization. It is composed by a wireless GSM module and take the monolithic integrated circuit as the core monitoring unit. The wireless GSM module took intermediary establishes the user handset and the monolithic integrated circuit control system long-distance correspondence through the transmission and the receive short note ,but the monolithic integrated circuit control system utilizes the AT instruction through the string mouth with the wireless GSM module establishment correspondence, achieves the realization system function the goal.
 This system may apply through the improvement to production and life, its most prominent merit lies in it to be able to realize the accurate real-time twp-way communication, moreover because the GSM network cover scope is extremely widespread, Therefore this system the region environment influence, simultaneously regarding the user was not said this system operation extremely convenient, cost low, the benefit is high.
 This article first in detail elaborated the monolithic integrated circuit short news receiving and dispatching system hardware composition and the design structure as well as the monolithic integrated circuit and the wireless GSM module connection way ,simultaneously also in detail introduced the short news control command and the short news receiving and dispatching protocol data unit form has carried on the elaboration. Finally discussed the function which the software partial structural design and can achieve.

 Keywords: Wireless GSM telecommunication Module ，TC35，AT command，
 Single-chip microcomputer ，AT89C51