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1、RelatedTechnologyResearchonNavigationElectronicMapLinLiu1,2,a,WanwuLi11ShandongUniversityofScienceandTechnology,QingdaoShandong,266510,China2Island(reef)NationalMappingBureauofSurveyingandMappingTechnologyKeyLaboratory,QingdaoShandong,266510,Chinaaemai
2、l：liulin2009@126.comKeywords:NavigationElectronicMapSystem;NavigationDataAcquisition;NavigationDataUpdating;ProductionProcessoftheNavigationElectronicMapAbstract.Thepaperdiscussesthemaindifferencebetweenthenavigationelectronicmapandthegeneralelectronic
3、map,analyzesthestructureofthenavigationelectronicmapsystemfromthefunctionandconstitution,discussesthedomesticnavigationelectronicmaponthemainsourceofdataaswellastheacquiremethod,putsforwardtwonavigationdataupdatingmethods:theversion-incrementalnavigati
4、ondataupdatingmethodandthepushtypeservice-onlinedatadynamicupdatingmethod,offerstheproductionprocessofnavigationelectronicmapandlooksaheadtothedevelopmenttrendofthedomesticnavigationelectronicmap.1.Introduction1Electronicmapisthevideoshowmapwhichisesta
5、blishedbytheappliedelectronicsandcomputertechnology.Electronicmapisavisualizationproductwhichisbasedonthedigitalmapandcanreal-timedisplaythemapdatawithcomputerscreenfromaprofessionalpointofview.Navigationelectronicmapisabranchofelectronicmap,its’mainfe
6、atureisthedifferentrequirementstodataelements.Onthebasisofcommonelectronicmap,thenavigationelectronicmapremovesthemapelementssuchasterrainheightandnaturalelementwhicharenotrelatedtonavigationcloselyandaddstheelementssuchasspacecoordinates,roadtopologyr
7、elationandroadpropertiesrelatingtonavigationclosely[1],especiallythedetailedtrafficinformation.Alsothenavigationelectronicmapisdesignedonthedatamodelanddatastructurespecificallyandrealizesthefunctionsofefficientpathcalculationandrouteguidancewhichapply
8、totheneedofnavigation.2.StructureofNavigationElectronicMapSystemNavigationelectronicmapistheextremelyimportantspatialinformationproductinthemapfield.Theconstructionsofdata,hardwareandsoftwareareformingacomprehensivesystemofelectronicmap
