基于嵌入式Linux的视频监控系统设计与实现(3)

2021-02-21 13:42

嵌入式 linux

西南交通大学硕士研究生学位论文第1I页

Abstract

LinuxandEmbeddedSystemarebothhotpointsintheacademicfieldofcomputertechnology.Thecombinationofthemtwofurtherexpandstheirrespectivedevelopmentarea.Withtherapiddevelopmentoftheelectronictechnology,multimediatechnologyandnetworktechnology,videosurveillancesystemisgoingtotheembedded,digital,networkeddirection.TakingfulladvantageofLSIandnetworksofscientificandtechnolo百calachievements,theembeddedvideosurveUlancesystemachievesdelicatevolume,stableperformance,facilitatesthecommunicationofthesurveillanceequipment.

Theprojectisinarnlmicroprocessorplatform,andportingembeddedLinuxsysteminit.Itcompletesvideocapturing,compression,transmissionandcontroltasks.BasedonthearchitectureandwiththeopensourcesoftwareinLinux,thewholeembeddedvideosurveillancesystemisimplementedandtested.

ARM9(S3C2410)alethemainprocessorinthesystem.usingUSBwebcamasvideocapturingequipment,thevideostreamdataarecompressedwithMPEG一4standardbywayoftransplantprojectffmpeg,SOtheremotemonitoringisactualized.Inaddition,themovingobjectdetectingwhichthispaperpresentsisappliedtotheembeddedvideosurveillancesystem.Thesurveillancesystemwillgiveanalarmtouserduringshortmessagewhensomeobjectarecomingintothefieldofview.

Thisdissertationintroducesthedevelopmentandresearchstatusofthevideosurveillancesystematfirst,thenintroducesthetheoryoftheembeddedvideosurveillancesystem.Afterthat,itpresentsthehardwareandsoftwareprojectoftheembeddedsystembasedonthemicroprocessor¥3C2410.ItanalysescarefullythetechnologyofembeddedLinuxsysteminvolvedthebootloader,Linuxkernel,GUIandfilesystem,anddiscusseshowtodrivetheUSBwebcaminembeddedLinuxsystem,itdesignsandimplementsthesoftwareoftheembeddedvideosurveillancesystemincludingthevideocapturing,movingobjectdetectionandtherealtimevideomonitormodule.

KeyWords:EmbeddedLinux;videosurveillance;S3C2410;ffmpeg;


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