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1、摘要基于嵌入式ARM的遠程視頻監(jiān)控系統(tǒng)研究摘要隨著科技的進步,視頻監(jiān)控系統(tǒng)正在向嵌入式、數(shù)字化、網(wǎng)絡化方向發(fā)展。嵌入式視頻監(jiān)控系統(tǒng)充分利用大規(guī)模集成電路和網(wǎng)絡的科技成果,實現(xiàn)了體積小巧、性能穩(wěn)定、通訊便利的監(jiān)控產(chǎn)品。本文以$3C2410為核心硬件平臺開發(fā)了基于嵌入式的遠程視頻監(jiān)控系統(tǒng),并對關鍵技術進行了論述和研究。首先給出了系統(tǒng)總體軟硬件設計方案,針對本系統(tǒng)硬件對vivi進行了修改和移植,對編譯和移植Linux內(nèi)核以及制作YAFFS文件系統(tǒng)也做了深入的研究,重點討論了在嵌入式Linux操作系統(tǒng)下開發(fā)USB接口攝
2、像頭驅動程序和利用linux提供的Vide04LinuxAPI函數(shù)實現(xiàn)視頻數(shù)據(jù)采集,其次采用背景差法實現(xiàn)了對視頻圖像中運動目標的檢測,然后通過MJPEG壓縮算法實現(xiàn)了視頻數(shù)據(jù)壓縮,接著介紹了在Linux下基于TCP/IP協(xié)議的socket編程,實現(xiàn)了視頻數(shù)據(jù)的網(wǎng)絡發(fā)送。最后著重論述了嵌入式Web服務器的設計,編寫了視頻監(jiān)控主界面程序,并實現(xiàn)了基于B/S模式的視頻監(jiān)控系統(tǒng)結構。本系統(tǒng)采用模塊化設計方法,使得設計更加簡潔、高效,具有良好的擴展性和易用性,有利于系統(tǒng)升級。另外采用嵌入式的方法,系統(tǒng)成本較低,易于推廣使
3、用。關鍵詞:ARM,嵌入式Linux,USB攝像頭,Vide04Linux,嵌入式Web服務器Abstract碩士論文Withthedevelopmentoftechnology,thevideosurveillancesystemisdevelopingtothedirectionofembedded,di百tal,andnetworked.Theembeddedofvideomonitoringsystemmakesfulluseoflarge-scaleintegratedcircuitsandscien
4、tificandtechnologicalachievementsofnetwork,realizingcompactable,stable,convenientmonitoringproducts.Inthispaper,theembeddedofremotevideomonitorsystembasedon$3C2410ofcorehardwareplatformhasbeensuccessfullydeveloped,andthekeytechnologieshavebeenresearchedanddi
5、scussed.Firstly,theoverallhardwareandsoftwaresystemdesignaregiven,vivihasbeenmodifiedandtransplantedforthehardware.ThetransplantationofthecompilerandproductionofLinuxkemel,filesystemofYAFFSalsobestudiedindetail.ItisfocusedonthedevelopingofUSBcamerainterfaced
6、riverundertheembeddedLinuxoperatingsystem,gatheringvideodatausedVide04LinuxAPIfunction.Secondly,thetechnologyofvideomotiondetectionwhichusedthebackgrounddifferencemethodisreseached,videodatacompressionwhichusedMJPEGalgorithmisimplement,andthenthevideodatawhi
7、chbasedonTCP/IPprotocolofthesocketprogrammingsentoverinthenetwork.Finally,thepaperfocusesontherealizationoftheembeddedWebserverdesign,compilingthehomepageprogramofvideosurveillance,implementingthestructureofthemonitoringsystembasedonB/Smodel.Themodulardesign
8、approachisusedinthesystemwhichmakesthedesignmorecompactable,efficient,andeasetoupgrade.themethodofembeddedforthesystemmakes10Wercost,easytouseinpromote.Keywords:ARM,EmbeddedLinux,USBcamera,Vide0