短信記錄機系統(tǒng)的設計與實現(xiàn)

電氣自動化論文編號:ZD327  論文字數(shù):8720,頁數(shù):29

目    錄
 
一緒論 1
二相關知識 2
 2.1短消息 2
 2.2 GSM通訊 2
 2.3 AT指令 2
 2.4 Unicode編碼 3
 2.5 GB2312編碼 3
 2.6 串口通信 4
 2.7小結(jié) 4
三系統(tǒng)硬件設計 5
 3.1 系統(tǒng)總體框圖 5
 3.2電源轉(zhuǎn)換 5
 3.3單片機與GSM模塊的連接 6
 3.4單片機與打印機的連接 7
 3.5串口電路 7
 3.6多串口的實現(xiàn) 9
 3.7小結(jié) 10
四系統(tǒng)軟件設計 11
 4.1程序流程圖 11
 4.2串口的初始化 12
 4.3 GSM模塊的設置 12
 4.4 Unicode碼到GSM碼的轉(zhuǎn)換 11
 4.5小結(jié) 14
五系統(tǒng)調(diào)試 15
 5.1編程軟件Keil  15
 5.2程序下載 15
 5.3調(diào)試結(jié)果 15
六結(jié)論 17
謝辭 18
參考文獻 19
 附錄 20

摘    要

 該裝置是基于西門子TC35i系列GSM模塊設計的短信記錄機系統(tǒng)，它能夠接收手機短消息，并且通過連接的微型打印機實現(xiàn)將接收到的短消息內(nèi)容格式化打印。系統(tǒng)由短信接收部分、單片機控制、打印部分三個模塊組成。設計中采用單片機作為控制器件，通過C語言編寫控制程序，利用AT指令對GSM模塊進行初始化控制，將SIM卡插入GSM模塊內(nèi)，通過GSM模塊接收短消息，并通過微型打印機將短消息的內(nèi)容、發(fā)信人、及時間打印出來。設計中采用4052芯片對單片機串行接口進行擴展，得到兩個串行接口，分別與GSM模塊和微型打印機相連。系統(tǒng)中采用異步串行傳輸數(shù)據(jù)，接口電路簡單易懂。該裝置可方便地進行遠距離消息的無線接收與記錄，實現(xiàn)了用手機收發(fā)傳真的功能。

關鍵詞：GSM模塊  微型打印機  單片機  AT指令  短信息 

Design and Implementation of SMS Records System
 ABSTRACT

 The system is a SMS records system which is based on Siemens TC35i series of GSM module, It can receive mobile phone text messages, and print the short message by micro printer formatted. The syetem includes three modules:the receiving of message, microcontroller and printer. Microcontroller is the control device in the design,which is programmed by C language, and use AT commands to initialize and control the GSM module. A SIM card is inserted into GSM module to receive text messages, and micro-printer prints the messages content, the sender and the time received. In the design , it uses 4052 chip to expand the microcontroller serial interface ,so we can get two serial interfaces, and connect with GSM modules and micro printer. The system uses asynchronous serial to transmist the data, and the interface circuit is easy-to-understand. The system can receive nd record SMS easily through long-distance and wireless, and achieve the function that uses a mobile phone to send and receive faxes.
 
Key words: GSM module  Micro Printer  microcontroller  AT Directive  Short Message