【硕士论文】基于TMS320DM642的视频监控系统的硬件研究与设计.pdf

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1、西南交通大学硕士学位论文基于TMS320DM642的视频监控系统的硬件研究与设计姓名：赵燕丽申请学位级别：硕士专业：计算机应用指导教师：蒋朝根20060401西南交通大学硕士研究生学位论文第1l页AbstractWi也theimproVementofpeople’slivingstalldardandtheincreasingofsecurityrequirementsinour1ivingandworkingcircumstance，theVideomonitoringsystemisdevelopedr印idl

2、yinrecentyears．Inthepastyearsmostofmonitoringsystemswerebasedonanologtechnology，untiltheendof90’shadtheVideomonitoringbeenenteredfroma110logagetodigitalage，whichnameddigitalvideomon“oringsystem．Nowmostofdigitalvideomonitoringsystemsonthemarketworkbyaimagecaptu

3、ringcardinPCIsocketwhichworkllllstably，priceist00high，andcannotworkinbadcircumstallce，andsoon．ontheotllerhaIld，manypowerfulembeddedpmcessors，suchasTI’sDSPandMot010豫’sPowerPCappe盯，whoseperformanceislli曲erandhi曲ercorreSpondinglypriceislowerandlower．Especially，DS

4、PchipsincludeabundanceofperiphefalinterfaceandhasVeryhighprogrammedability，whichmakethehardwareandsofowareofVideomonitoringsystembeimplementedeasily．Butalso，thisembeddedsystemconquermanydencienciesofthesystembasedonPC．Asaresultoftheincreasingperformance—price—

5、ratio，addinginsmallarea，lowlostandpowerconsumption，theproportionofembeddedchipsinvideomonitoringneldbecomemuchhigher．Thispapermainlyresearchanddesignauniversalembeddedvideomonitoringsystem．ThecemralprocessorisTI’sdedicatedmultimediaprocessor—TMS320DM642，Thissy

6、stemcouldcaptureatmost4一routeVideosignalsatthesametime，whjchbringsdownthecostef先ctively．Thec印tureddataareprocessedandstoredimoIDEharddisk，ortransmittedtoremoteservertostore．Atfirst，theminimalsystemwasdesigned，includingDSP，powercircuit，resetcircuitandclockcircu

7、it．ThentheperipheraldeViceswereeXtended，includingvideocircuit，audi0circuit，localstorecircuit，Ethernettl’ansmitcircuitandUARTcomrolcircuitAt1ast，thisp印erdiscussedsomeproblemsthatneedpaymoreattentiontoduringthedesignprocedural．Keywords：TMS320DM642；DSP；Videomonit

8、or；Timing西南交通大学硕士研究生掌位论文第1页1．1研究背景和意义第l耄绪论在社会、经济、科技迅速发展的今天，无论是在经济发达的国家，还趋在发展中嚣家或欠发达国家，安全

9、’藏题已经成为整个霞际社会关淀的焦点。这就是说，人们解决了自身温饱闽遂之居，人身与社会公共安全阅题已变得臼益突如。菇一方面，伴随着第五次产业革命的浪潮，工业众数的自动化、信息化建设进