【正文】 ................................................. 6 系統(tǒng)技術(shù)參數(shù) ........................................................................................ 7 運行環(huán)境 ...................................................................................... 7 測量參數(shù)及要求 .......................................................................... 7 無線通信范圍 .............................................................................. 7 3 總體設(shè)計方案 ................................................................................................. 8 設(shè)計原則 ............................................................................................... 8 系統(tǒng)方案 ............................................................................................... 8 遠程監(jiān)測終端的結(jié)構(gòu) ................................................................... 9 計算機監(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 遠程監(jiān)測終端的外設(shè)備選型 .......................................................19 遠程監(jiān)測終端的微控制器 ..........................................................24 II 開發(fā)工具 .................................................................................... 27 4 遠程監(jiān)測終端的硬件電路設(shè)計 ...................................................................... 29 系統(tǒng)電源設(shè)計 ...................................................................................... 30 數(shù)據(jù)采集模塊的電路設(shè)計 .................................................................... 31 微控制器外圍電路 ..................................................................... 31 實時時鐘電路 ............................................................................. 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 模擬信號采集電路 ..................................................................... 36 開關(guān)量輸入處理電路 ................................................................. 37 開關(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 ..................................................................... 41 M23A 模塊 供電電路 ................................................................... 41 M23A 模塊 啟動電路 ................................................................... 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 ................................................................ 44 5 遠程監(jiān)測終端的軟件設(shè)計 ............................................................................. 47 軟件設(shè)計方法 ...................................................................................... 47 有限狀態(tài)機 ................................................................................ 48 事件驅(qū)動的程序設(shè)計方法 .......................................................... 49 遠程 監(jiān)測終端底層驅(qū)動程序設(shè)計 ........................................................ 52 STM32 固件庫 ............................................................................. 52 系統(tǒng)時鐘節(jié)拍驅(qū)動程序 .............................................................. 54 串口底層驅(qū)動程序 ..................................................................... 55 M23A GPRS 通信驅(qū)動程序 ......................................................... 57 圖像采集驅(qū)動程序 ..................................................................... 63 開關(guān)量采集驅(qū)動程序 ................................................................. 64 模擬量采集驅(qū)動程序 ................................................................. 65 SD 卡驅(qū)動程序 ............................................................................ 66 鍵盤與顯示驅(qū)動程序 ................................................................. 68 基于 GPRS 的分布式油田原油計量和防盜系統(tǒng)設(shè)計 III 遠程 監(jiān)測終端應(yīng)用層程序設(shè)計 .............................................................71 6 計算機 監(jiān)控中心的軟件開發(fā) ..........................................................................75 數(shù)據(jù)庫的選擇 .......................................................................................76 功能模塊的設(shè)計 ...................................................................................77 用戶管理模塊 .............................................................................77 系統(tǒng)查詢模塊 .............................................................................79 7 結(jié)論 ...............................................................................................................81 致 謝 .................................................................................................................82 參考文獻 ............................................................................................................83 附錄 A：數(shù)據(jù)采集板原理圖 11 ........................................................................86 附錄 B：數(shù)據(jù)采集板原理圖 12 ........................................................................87 附錄 C： GPRS 通信貓原理圖 ..............................................................................88 附錄 D：鍵盤顯示板原理圖 ...............................................................................89 攻讀學(xué)位期間發(fā)表的論文目錄 ..........................................................................90 攻讀學(xué)位期間參與的項目 ..................