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1、Subject:DesignoftheARM-basedEmbeddedLinuxRemoteMonitoringSystemSpecialty:ComputerApplicationTechnologyName:KangTianxia(Signature)Instructor:ZhiJianfeng(Signature)ABSTRACTWiththedevelopingofnetworkcommunicationtechnologyandmultimediatechnology,embeddedvideosur
2、veillancetechnologygraduallyentersanewphaseofthedigitalnetwork.Itiswidelyusedintelecommunications,bankingtransport,power,intelligentbuildingsandmanyotherfields.Currently,thethird-generationnetwork-basedvideosurveillancesystemisontherise,itgraduallybecomethene
3、wtrendwithitsuniqueadvantages.ThenewgenerationofvideocompressionstandardH.264/AVCisdesignedtocompressthesourceimagesandvideoswithlowerdistortion,lessbitratesandhighercompressionratio,andcanbeappliedtomostapplications.H.264/AVCadoptsalotofadvancedalgorithms.Wi
4、ththesealgorithms,itmakesaperfectbalancebetweenthecomputationcomplexityandthecodingperformance.Comparedwiththeprevioustechnologys,H.264/AVChasahighercompressionperformance,andabetternetworkcompatibility.Inthispaper,thesystemisdevelopedbasedonS3C2440Ahardwarep
5、latformandembeddedLinuxplatform,andthefrontUSBvideocapture,videocompression,networktransmissionfunctionsarerealized.Themainresearchcontentandresultsareasfollows:(1)Constructembeddeddevelopmentplatform,includinganalysisofBootLoader,Linuxkernelcuttingandtranspl
6、antation,Linuxdevicedriverdesign,productionoftherootfilesystem.(2)Videocapturingandcompression,mainlyrelatedtotheworkisvideocompressionbasedonH.264/AVC.Thispaperdescribesthevideocompressioncodingtechnologydevelopmentprocess.Andin-depthanalysisofthekeytechnolo
7、giesoftheH.264/AVCvideocoding.Onthisbasis,realizethecollectionofvideoandreal-timeH.264codingprocessing.(3)Networktransmissionofcompressedvideo,becauseofreal-timerequirementofvideonetworktransmission,thepaperdesignsavideoserverbasedonUDPprotocol,describestheCG
8、Iprogramdesignanddevelopment,andimplementstheremotevideosurveillancebasedonB/Smode.Thedesignofthissystemisverysimple,efficient,extensibleandeasytouseandwhat’smoreimportantiseasytoupdatest
