【正文】 ....................................................................................................... III 目 錄 ................................................................................................................... I 1 緒論 ................................................................................................................ 1 項(xiàng)目背景及研究的目的和意義 .............................................................. 1 項(xiàng)目的國(guó)內(nèi)外研究現(xiàn)狀 ......................................................................... 1 論文的主要研究?jī)?nèi)容 ............................................................................. 2 論文的組織結(jié)構(gòu) .................................................................................... 3 2 需求分析 ......................................................................................................... 5 系統(tǒng)要解決的問(wèn)題 ................................................................................ 5 遠(yuǎn)程 監(jiān)測(cè)終端的要求 ................................................................... 5 計(jì)算機(jī)監(jiān)控中心的要求 ............................................................... 5 遠(yuǎn)程 監(jiān)測(cè)終端功能分析 ......................................................................... 6 計(jì)算機(jī) 監(jiān)控中心軟件功能分析 .............................................................. 6 系統(tǒng)技術(shù)參數(shù) ........................................................................................ 7 運(yùn)行環(huán)境 ...................................................................................... 7 測(cè)量參數(shù)及要求 .......................................................................... 7 無(wú)線通信范圍 .............................................................................. 7 3 總體設(shè)計(jì)方案 ................................................................................................. 8 設(shè)計(jì)原則 ............................................................................................... 8 系統(tǒng)方案 ............................................................................................... 8 遠(yuǎn)程監(jiān)測(cè)終端的結(jié)構(gòu) ................................................................... 9 計(jì)算機(jī)監(jiān)控中心的結(jié)構(gòu) ..............................................................10 系統(tǒng)方案的可行性 ...............................................................................10 系統(tǒng)開(kāi)發(fā)涉及的相關(guān)內(nèi)容 ....................................................................12 GPRS 網(wǎng)絡(luò) ...................................................................................12 GPRS 模塊選型 ...........................................................................16 M23A GSM/GPRS 模塊 ................................................................16 AT 指令集 ....................................................................................18 遠(yuǎn)程監(jiān)測(cè)終端的外設(shè)備選型 .......................................................19 遠(yuǎn)程監(jiān)測(cè)終端的微控制器 ..........................................................24 開(kāi)發(fā)工具 .................................................................................... 27 4 遠(yuǎn)程監(jiān)測(cè)終端的硬件電路設(shè)計(jì) ...................................................................... 29 系統(tǒng)電源設(shè)計(jì) ...................................................................................... 30 數(shù)據(jù)采集模塊的電路設(shè)計(jì) .................................................................... 31 微控制器外圍電路 ..................................................................... 31 實(shí)時(shí)時(shí)鐘電路 ............................................................................. 34 數(shù)據(jù)采集模塊的供電電路 .......................................................... 34 數(shù)據(jù)采集模塊的串行通信電路 .................................................. 35 模擬信號(hào)采集電路 ..................................................................... 36 開(kāi)關(guān)量輸入處理電路 ................................................................. 37 開(kāi)關(guān)量輸出處理電路 ................................................................. 38 LED 及蜂鳴器電路 ..................................................................... 38 SD 卡接口電路 ............................................................................ 39 GPRS 通信貓的電路設(shè)計(jì) ..................................................................... 41 M23A 模塊 供電電路 ................................................................... 41 M23A 模塊 啟動(dòng)電路 ................................................................... 41 M23A 模塊 通信接口電路 ............................................................ 42 SIM 卡 接口電路 .......................................................................... 43 鍵盤與顯示模塊的電路設(shè)計(jì) ................................................................ 44 5 遠(yuǎn)程監(jiān)測(cè)終端的軟件設(shè)計(jì) ............................................................................. 47 軟件設(shè)計(jì)方法 ...................................................................................... 47 有限狀態(tài)機(jī) ................................................................................ 48 事件驅(qū)動(dòng)的程序設(shè)計(jì)方法 .......................................................... 49 遠(yuǎn)程 監(jiān)測(cè)終端底層驅(qū)動(dòng)程序設(shè)計(jì) ........................................................ 52 STM32 固件庫(kù) ............................................................................. 52 系統(tǒng)時(shí)鐘節(jié)拍驅(qū)動(dòng)程序 .............................................................. 54 串口底層驅(qū)動(dòng)程序 ..................................................................... 55 M23A GPRS 通信驅(qū)動(dòng)程序 ......................................................... 57 圖像采集驅(qū)動(dòng)程序 ..................................................................... 63 開(kāi)關(guān)量采集驅(qū)動(dòng)程序 ................................................................. 64 模擬量采集驅(qū)動(dòng)程序 ................................................................. 65 SD 卡驅(qū)動(dòng)程序 ............................................................................ 66 鍵盤與顯示驅(qū)動(dòng)程序 ................................................................. 68 遠(yuǎn)程 監(jiān)測(cè)終端應(yīng)用層程序設(shè)計(jì) .............................................................71 6 計(jì)算機(jī) 監(jiān)控中心的軟件開(kāi)發(fā) ..........................................................................75 數(shù)據(jù)庫(kù)的選擇 ................................................................