面向移動用戶的城市空間信息服務(wù)平臺關(guān)鍵技術(shù)與方法的研究.pdf

1、華東師范大學(xué)碩士學(xué)位論文面向移動用戶的城市空間信息服務(wù)平臺關(guān)鍵技術(shù)與方法的研究姓名：閔曉瑜申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：王成道20050501AbstractWiththerequirementofthe863一programShanghaiSpatialInformationApplicationPlatformBasedonSIG——theSubsystem／orMobileUsertoCollectingInfo

2、rmation＆UsingtheSpatialInformation，thispaperdiscussedthetechnologies&methodsusedintheservicesplatform，akeycomponentinthesubsystemAsweknown，urbanGIShasthenaturesuchasthevarioussourceofdata，variousplatformsandmessdatawhich

3、cannotmatchthenatureofthewirelessenvironment，whichhasafeasiblenetworksconnection，narrowbandwidthandthelimitationofthecomputerrescourseSothispaperfocuseonhowtoeasethemobileusertousethespatialinformationassameasthetraditio

4、naluserdoThispaperdiscussedtheproblemsonfouraspects：thearchitectureoftheservicesplatform；theprotocolusedbymobileuser；theinformationandservicesintegrationtechnologybaseonthe“pointsource”methodandWebServicestechnology；thec

5、ompressiontechnologyusedbyspatialinformationThispaperintroducedthe“blackboard”structureintotheGISfield，andconstructedtheplatformwhichfitstherequirementsofmobileuserandcityspatialinformationintergration；Also，thispaper，pro