資源描述:
《安防監(jiān)控系統(tǒng)中視頻存儲(chǔ)技術(shù)的研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、華中科技大學(xué)碩士學(xué)位論文安防監(jiān)控系統(tǒng)中視頻存儲(chǔ)技術(shù)的研究姓名:楊康申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):光學(xué)工程指導(dǎo)教師:胡必春20080528摘要隨著計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)的迅猛發(fā)展,視頻監(jiān)控系統(tǒng)目前正處于以DVR數(shù)字硬盤錄像機(jī)為代表的數(shù)字視頻監(jiān)控系統(tǒng)全面向以NVS網(wǎng)絡(luò)視頻服務(wù)器、IPCamera網(wǎng)絡(luò)攝像機(jī)為代表的網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)轉(zhuǎn)型階段,在此過渡階段,絕大多數(shù)的應(yīng)用是數(shù)字與網(wǎng)絡(luò)混合型的系統(tǒng)。相比數(shù)字視頻監(jiān)控而言,以IP協(xié)議為基礎(chǔ)的網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)可以構(gòu)建出更大規(guī)模、更復(fù)雜、更靈活、更具有擴(kuò)展性的應(yīng)用體系,其核心部分是一套具有廣泛兼容性和高度集成性的智能視頻監(jiān)控管理軟件,將監(jiān)控系統(tǒng)和計(jì)
2、算機(jī)網(wǎng)絡(luò)/信息管理系統(tǒng)連接起來,使兩個(gè)相互獨(dú)立的系統(tǒng)走向融合,從而實(shí)現(xiàn)真正的三網(wǎng)合一(數(shù)據(jù)、語音和視頻圖像)。在網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)中,音視頻流的傳輸是基于IP網(wǎng)絡(luò)的,在存在大量音視頻流傳輸?shù)那闆r下,如何有效地實(shí)現(xiàn)對(duì)音視頻數(shù)據(jù)的存儲(chǔ),和對(duì)多個(gè)用戶檢索回放視頻文件的管理是一個(gè)重要的課題。因此,本文就對(duì)網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)的存儲(chǔ)技術(shù)進(jìn)行了探討,給出了一種音視頻存儲(chǔ)服務(wù)器軟件的設(shè)計(jì)方案和具體實(shí)現(xiàn)。該視頻存儲(chǔ)服務(wù)器軟件滿足TCP/IP協(xié)議,并且可擴(kuò)展SIP協(xié)議。存儲(chǔ)的視頻數(shù)據(jù)格式為MPEG4編碼格式,具有CIF或D1的圖像分辨率。支持圖像存儲(chǔ)、網(wǎng)絡(luò)回放的雙工模式,最大可以同時(shí)對(duì)32路
3、視頻進(jìn)行錄像,最多支持32個(gè)用戶同時(shí)在線檢索回放歷史數(shù)據(jù),可以根據(jù)圖像的來源、記錄時(shí)間、報(bào)警事件類別等多種方式對(duì)存儲(chǔ)的圖像數(shù)據(jù)進(jìn)行檢索。關(guān)鍵詞:網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)網(wǎng)絡(luò)存儲(chǔ)服務(wù)器會(huì)話初始化協(xié)議套接字IABSTRACTWiththerapiddevelopmentofthecomputernetworktechnology,videosurveillancesystemsarenowintransitionstagefromtheDigitalVideoSurveillanceSystemrepresentedbydigitalvideorecorder(DVR)to
4、networkvideosurveillancesystemrepresentedbythenetworkvideoserver(NVS),networkcameras(IPCamera).Inthistransitionalphase,thevastmajorityofapplicationsaremixedwithdigitalandnetwork-basedsystem.Comparedtodigitalvideosurveillance,IPprotocol-basednetworkvideosurveillancesystemcanbuildalarger,
5、morecomplex,moreflexible,moreexpansiveapplicationsystem.thecorepartofthesystemisasetofintelligentvideosurveillancemanagementsoftwarewithabroadcompatibilityandahighdegreeofintegration,whichwilllinkupmonitoringsystemandcomputernetwork/informationmanagementsystem,sothattwomutuallyindepen
6、dentsystemsaremovingtowardintegration,thusrealizingintegrationofthetriplenetwork(data,voiceandvideoimages).Inthenetworkvideosurveillancesystems,transmissionofaudioandvideostreamingisbasedontheIPnetwork.Inthepresenceofalargenumberofaudioandvideostreaming,howtoachievetheaudioandvideodatas
7、torage,andhowtomanageofretrievalandplaybackofvideofilesareimportantissues.Therefore,inthispaper,thestoragetechnologyinthenetworkvideomonitoringsystemisdiscussedandthedesignandrealizationofaudio-videostorageserversoftwareisputforward.ThevideostorageserversoftwaremeetstheTCP/IPpr