【正文】 五邑大學(xué)本科畢業(yè)設(shè)計(jì) I 摘要 隨著通信行業(yè)的不斷發(fā)展，串口通信越來(lái)越成熟。人們對(duì)于信息的依賴程度也變得越來(lái)越高，所以信息的傳播速度、傳播方式、傳播范圍都有著廣闊的發(fā)展前景。應(yīng)用的范圍也越來(lái)越廣。本章主要研究串口通信在短信訂票行業(yè)的應(yīng)用。雖然手機(jī)短信在我們生活中是必不可少的的通訊方式，但卻由于 SIM 卡的有限容量，使得我們要對(duì)短信進(jìn)行清理，所以開(kāi)發(fā)一套軟件對(duì)短信的自動(dòng)接收并自動(dòng)刪除變得尤為重要。本系統(tǒng)主要是探討利用 GSM模塊進(jìn)行自動(dòng)接收、存儲(chǔ)、查找信息的功能。能夠利用 VB 語(yǔ)言設(shè)置串口參數(shù)，能夠?qū)?shù)據(jù)庫(kù)進(jìn)行收集信息，能實(shí)現(xiàn)手機(jī)與數(shù)據(jù)庫(kù)的 聯(lián)系。系統(tǒng)中采用了西門子的 GSM 模塊的功能，能夠管理短信，通過(guò) RS232 串口進(jìn)行連接 GSM 模塊和電腦，就能夠 Point to Point 接收中英文短信?？蛻粢部梢酝ㄟ^(guò)手機(jī)簡(jiǎn)單地發(fā)送一條短信訂到車票，系統(tǒng)管理員也可以通過(guò)數(shù)據(jù)庫(kù)查到相應(yīng)的客戶需求。 關(guān)鍵詞 AT 指令 串口通信 PDU解碼 GSM 模塊 五邑大學(xué)本科畢業(yè)設(shè)計(jì) II Abstract With the continuous development of the munications industry, serial munication is more and more mature. People39。s dependence on information has bee increasingly high, so the speed of information dissemination, dissemination, dissemination scope has the broad prospects for development. More and more wide range of applications. This chapter mainly studies the application of serial munication in the SMS booking industry. Although mobile phone text messages in our lives is essential means of munication, but due to the limited capacity of SIM card, so we want to clean up the message, so automatically receive a set of software is developed for text messages and automatically deleted bees particularly important. The system is mainly to automatically receive, storage, searching information using GSM module. Can use VB language set the serial parameters, which can collect information on the database, can realize the mobile phone contact with the database. The system uses the GSM module Siemens39。s function, can manage SMS, are connected with the GSM module and the puter through the RS232 serial port, it can receive messages point to point in English. Customers can also send a text message through a mobile phone to book the tickets, the system administrator can also check to the corresponding customer needs through the database. Key words The AT instruction Serial munication PDU decoding The GSM module 五邑大學(xué)本科畢業(yè)設(shè)計(jì) III 目 錄 摘要 ............................................................................................................................................. I Abstract ................................................................................................................................... II 第 1 章 緒論 ............................................................................................................................... 1 課題背景以及建立的意義 ........................................................................................... 1 課題主要工作內(nèi)容 ....................................................................................................... 1 本章小結(jié) ....................................................................................................................... 2 第 2 章 串口通信 ....................................................................................................................... 3 串行接口標(biāo)準(zhǔn)簡(jiǎn)介 ....................................................................................................... 3 GSM 模塊 ...................................................................................................................... 3 MSComm 控件的實(shí)現(xiàn) ................................................................................................. 4 MSComm 控件的簡(jiǎn)述 ....................................................................................... 4 MSComm 控件屬性 ........................................................................................... 4 MSComm 控件的觸發(fā)事件 ............................................................................... 5 AT 指令的應(yīng)用 .............................................................................................................. 5 短信 PDU模式與 TEXT 模式 ..................................................................................... 7 本章小結(jié) ....................................................................................................................... 8 第 3 章 設(shè)計(jì)思路 ....................................................................................................................... 9 系統(tǒng)硬件與軟件 ........................................................................................................... 9 短信接收的流程圖 ........................................................................................................ 9 系統(tǒng)總的流程圖 ........................................................................................................... 9 本章小結(jié) ..................................................................................................................... 10 第 4 章 Visual Basic 及數(shù)據(jù)庫(kù)的應(yīng)用 ................................................................................ 11 Visual Basic 的應(yīng)用 ..................................................................................................... 11 Visual Basic 的工程建立 ................................................................................. 11 屬性、方法、事件、內(nèi)部字符函數(shù) .............................................................. 11 模態(tài)窗體 .......................................................................................................... 12 Microsoft SQL Server 數(shù)據(jù)庫(kù)的應(yīng)用 ......................................................................... 13 Visual Basic 中的 ADO 控件 .......................................................................... 13 Microsoft SQL Server 中的 SELECT 查詢操作 ............................................ 13 Microsoft SQL Server 數(shù)據(jù)導(dǎo)出 ................................................................................. 13 本章小結(jié) ..................................................................................................................... 14 第 5 章 系統(tǒng)的設(shè)計(jì) ................................................................................................................. 15 GSM 模塊串口的啟動(dòng)設(shè)置 ...............