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1、山東大學(xué)碩士學(xué)位論文基于ARM的GPRSDTU的研發(fā)姓名：劉慶敏申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：信號(hào)與信息處理指導(dǎo)教師：田嵐20090427山東大學(xué)碩士學(xué)位論文ABSTRACTNowadays，embeddedsystemsareoneofthemostpopularresearchfieldsandwillbethemostpromisingdirectionofthePost-PCEra．It’SwidelyusedinInformationAppliances(IA)，hand-heldcommunicationsequipment，instrumentation，a
2、utomotive，aerospace，industrialcontrol，dataacquisitionandSOon．Ithasbroughtgreatconvenienceforpeopletoworkandlive．GPRSDTUisanimportantapplicationofembeddedsystemsinthefieldsofindustrialcontrolanddataacquisition．ItsfunctionistotransmissserialdatathroughGPRSnetworkandtoprovideawirelessback
3、uplink．Thereforeitimprovesthereliabilityofdatatransmission．Withthegrowingdemandforintelligence，theconceptofintelligentGPRSDTUisputforward．Inadditiontotheoriginalbasicfunctions，moreintelligentmodulesneedtobeprovided，suchasmaintainingapermanenton-linebyautomaticheartbeat，remoteaccess，web
4、remotemanagement，automaticupdatesandSOon．ItcouldsavethecostofmaintenanceandiSmorecost-effectiveandthereforetheresearchonintelligentGPRSDTUhasbroadsenseandgoodbusinessprospects．ThispaperisaimedtodesignandimplementGPRSDTUintelligentapplicationplatformandtodeeplyanalyzethekeytechnologyoni
5、ntelligentfunctions．Firstofall，thebasicconceptanddesignprocessofembeddedsystemsareintroducedbasedonthetheoreticallevel，andsomemethodsaresummedup，suchasseizingtheessence，hierarchicalintegration，coordinationdivision，sceneanalysisandSOon；second，introduceGPRSDTUhardwareplatform，whichadopts
6、ATMEL'sAT91RM9200ascorecontr01unitandTelit’SGM862asGPRSmoduleinordertoachieveindustrial—levelrequirement；third，sumupthemethodtoconvertLinuxELFformatfiletoabinaryfile，andthenfocusoncorrectingU-boot’SunreasonableapplicationonAT91RM9200’SremapmechanismandrealizingtheindependenceofU-boot’S
7、bootmode；fourth，anembeddedhybridfilesystem(Cramfs+JFFS2+Initramfs)for2山東大學(xué)碩士學(xué)位論文intelligentGPRSDTUdesignschemeisproposed．whichisakeymoduleofintelligentGPRSDTU．Meanwhile，portandcustomizeLinux-2．6．20kernelbasedontheneedsofEFSandapplications；finally,illustratethebasictheorialmodelofappl
