【正文】 變電站視頻監(jiān)控系統(tǒng)設(shè)計(jì)研究實(shí)施分析 (作者姓名 ) 指導(dǎo)教師 : 摘要 隨著科學(xué)技術(shù)和經(jīng)濟(jì)水平的飛速發(fā)展，人們對安全防范要求也越來越高。近年來網(wǎng)絡(luò)通信技術(shù)、數(shù)字視頻處理技術(shù)的發(fā)展以及國內(nèi)電力變電站的網(wǎng)絡(luò)基礎(chǔ)設(shè)施建設(shè)的日益完善，大大促進(jìn)了數(shù)字視頻監(jiān)控系統(tǒng)的研究和發(fā)展。 遠(yuǎn)程數(shù)字視頻監(jiān)控系統(tǒng)是一個(gè)綜合的集成系統(tǒng)，涉及到通訊技術(shù)、計(jì)算機(jī)技術(shù)、網(wǎng)絡(luò)技術(shù)、自控技術(shù)、圖像壓縮技術(shù)、安防監(jiān)控技術(shù)和弱電集成技術(shù)等各方面的綜合技術(shù)，本文根據(jù)視頻監(jiān)控在計(jì)算機(jī)網(wǎng)絡(luò)傳輸?shù)脑?，運(yùn)用 Winsock 控件，采用模塊化設(shè)計(jì)，討論了基于TCP/工 P 和 MPEG4 的數(shù)字圖像壓縮的遠(yuǎn)程實(shí)時(shí)視頻監(jiān)控系統(tǒng)。 本文介紹了本系統(tǒng)的方案設(shè)計(jì)以及各個(gè)模塊的開發(fā)實(shí)現(xiàn)，其中包括 :網(wǎng)絡(luò)傳輸模塊、MPEG4 圖像服務(wù)模塊、數(shù)據(jù)庫模塊、歷史記錄模塊以及聲音對講模塊等，設(shè)計(jì)方案是一套專門面向電力行業(yè)的變電站遙視系統(tǒng)。 關(guān)鍵詞 : TCP/IP 數(shù)字視頻監(jiān)控客戶機(jī) /服務(wù)器網(wǎng)絡(luò)傳輸雙向語音 Abstract Recent years,with the highspeed development of the puter work technique,multimedia image pressing technique and digital munication technique,the Digital Video Monitor System gained giant progress. The Remote And Digital Video Monitor System is an integrated system relates to the munication control, puter control,work control, autocontrol,image pressing technique,monitor technic and positive technic and so thesis is based on the theory of puter transmission about video monitor, exerts the Winsock ,designs by means of the modules,discusses the longdistance and realtime video monitor system based on TCPIIP and MPEG4 about digital image pressing. This thesis introduces the whole project and each module on exploitation, for instance: transmission module,MPEG4 image serve module,database module, history track record module,sound talkback module and so on .This system is a remote surveillance system of transformer substation in power system. Key Words: MPEG4 TCPIIP Digital Video Monitor Client/Seve TalkBack Net Transmission 緒論 ................................................................................................................................. 5 引言 .................................................................................................................... 5 遠(yuǎn)程電視 監(jiān)控系統(tǒng)的需求背景 .............................................................................. 5 1. 3 視頻監(jiān)控系統(tǒng)的發(fā)展 ........................................................................................... 6 1. 4 本論文研究的目的和意義 .................................................................................... 7 1. 5 本文研究的內(nèi)容 .................................................................................................. 7 2 系統(tǒng)采用的基本技術(shù)簡介 .............................................................................................. 8 ................................................................................................ 8 2. 2 數(shù)字視頻的通信 .................................................................................................. 9 2. 2. 1 網(wǎng)絡(luò)傳輸介質(zhì) ........................................................................................... 9 2. 2. 2 傳輸網(wǎng)絡(luò) .................................................................................................. 9 TCP/IP 協(xié)議族 .................................................................................................... 10 Winsock編程原理 .............................................................................................. 10 2. 4. 1 套接字 (Sockets) ...................................................................................... 10 客戶機(jī) /服務(wù)器模型 ................................................................................... 11 3 整個(gè)系統(tǒng)的方案設(shè)計(jì) ................................................................................................... 12 3. 1 系統(tǒng)的方案設(shè)計(jì) ................................................................................................ 12 3. 2 系統(tǒng)整體組成功能 ............................................................................................ 13 3. 2. 1 變電站端組成功能 .................................................................................. 13 3. 2. 2 監(jiān)控中心組成功能 .................................................................................. 13 3. 3 系統(tǒng)的安全設(shè)計(jì) ................................................................................................ 14 3. 3. 1 系統(tǒng) 安全管理設(shè)計(jì) .................................................................................. 14 3. 3. 2 系統(tǒng)防病毒軟件設(shè)計(jì) .............................................................................. 14 3. 3. 3 系統(tǒng)防火墻設(shè)計(jì) ..................................................................................... 15 3. 3. 4 物理隔離設(shè)計(jì) ......................................................................................... 15 獨(dú)特的看門狗設(shè)計(jì) .................................................................................... 15 4 遠(yuǎn)程監(jiān)控系統(tǒng)的軟件模塊設(shè)計(jì) ..................................................................................... 16 4. 1 傳輸信道選擇 ................................................................................................... 16 4. 2 面向?qū)ο蟮某绦蜷_發(fā)方法 .................................................................................. 16 4. 2. 1 面向?qū)ο蟮幕靖拍? .............................................................................. 16 4. 2. 2 面向?qū)ο蟮某绦蛟O(shè)計(jì) .............................................................................. 18 4. 3 系統(tǒng)軟件模塊設(shè)計(jì)與實(shí)現(xiàn) .................................................................................. 18 4. 3. 1 網(wǎng)絡(luò)傳輸模塊 ......................................................................................... 18 4. 3. 3 MPEG4圖像服務(wù)模塊，圖像客戶模塊 .................................................... 19 4. 3. 4 錄像文件刪除模塊 .................................................................................. 20 4. 3. 6 聲音對講模塊 ......................................................................................... 20 4. 3. 7 網(wǎng)絡(luò)檢測 ................................................................................................ 20 4. 3. 8 看門狗設(shè)計(jì) ............................................................................................ 20 4. 3. 9 錄像管理模塊 ......................................................................................... 21 4. 3. 10電子地圖模塊 ...................................