基于sim508的车载gps终端设计

《基于sim508的车载gps终端设计》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、JournalofNanchangInstituteofTechnologyISSN1674—007604／15PP18—23Volourne31，Number1，February2012DesignofvehicleGPSterminalbasedonSIM508LIYanhua，XIAOWenguang2(1．DepartmentofElectronicInformation，AnhuiBusinessVocationCoHege，Hefei230041，China；2．AutomobileElectroni

2、cEngineeringCentre，EastChinaResearchInstituteofElectronicEngineering，Hefei230088，China)Abstract：Fromtheperspectiveofoptimizingproductandimprovingcompetitiveness，thispaperpointsoutsomedefectsoftheconllnonvehic1eGPSmonitoringterminals，suchaslowintegrationofhard

3、waremodules，highcost，largesize，andlowreliabili—tv．Thesedefectsleadtohighcostinmaintenanceandlowcustomersatisfaction．AnovelsolutionisproposedinthispapertosolvetheseDroblems．OursdutionadoptsanARM7coreSTR750FV2T6asthehostcontroller，andusesGPS／GPRSmoduleSIM508ast

4、hetransceivertolocateandcommunicate．ThissolutionreducesthecostandsizeofcommonvehicleGPStermi—nalswithahighDerformance．Theexperimentresultshowsthatoursolutionfunctionswellinpracticaluseandcanbereferredinthefurtherresearchonvehiclesafetymonitoringtechnology．Key

5、words：GPS；SIM508；vehiclemonitoring；ATcommands1IntroductionGeneralpacketradioservice(GPRS)basedonGSMsystemprovidesend—to—end，wideareaandwirelessIPconnection．Itsendsdataintheformofpacketwithfastspeed．highcommunicationqualitywithoutdependenceonpublicswitchedtele

6、phonenetwork[¨anddistributesnetworkcapacitywhenitisnecessary．ThevehicleGPStermi—，nalmakesuseofGPRScommunicationnetworktorealizethereliabletransmissionofpositioningdatainformationtomonitorclients．．TheDositioningunitandcommunicationunitarethekeycomponentsofvehi

7、cleGPSterminal，buttheyareof-tenrealizedbvtwoseparatehardwaremodulessuchasGSMmoduleMC39iorMC55ofSiemensCompanyandGPSmoduleLassenIQofTrimbleCompany．Thiskindofdesignisofhighcost，largesizeandlow．reliability．Anovelso—luti0nisDroposedinthispapertosolvetheseproblems

8、．OursolutionadoptsanARM7coreSTR750FV2T6asthehostcontroller．andusesGPS／GPRSmoduleSIM508asthetransceivertolocateandcommunicate．Thissolutionre—ducesthecostandsizeofcommonvehicleGPSterminalsw