基于GSM的GPS車輛監(jiān)控系統(tǒng)車載終端的設(shè)計.pdf

1、華中科技大學(xué)碩士學(xué)位論文基于GSM的GPS車輛監(jiān)控系統(tǒng)車載終端的設(shè)計姓名：彭寧昆申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：盧益民2002.4.28華中科技大學(xué)碩士學(xué)位論文AbstractGSMbasedautomobilelocationsystemisthecombinationofcomputernetwork、sensorstechnologyandembeddedsystemComparedwiththetradition

2、alsystemswhicharebasedontrunkingsystemorsinglechannelradiosystem，ithasmeritsasfollowing：networkorganizedeasily，widemonitoringrange，largesystemcapacityTheGSMmobilecommunicationsystemispopularizedandtheShortMessageService’

3、SexpensesareverylowthismaketheGSMbasedautomobilelocationsystemhasthebroadfutureAutomobilelocationsystemstudiedinthispaperisseparatedintotwoparts：themobileterminaloncarandthemonitoringcenterThemobileterminaloncarisdevelop

4、edusingembeddedoperationsystembasedRABBIT2000microcomputerunit，itsefficiencyandreliabilityisveryhigh，anditcaneasilyexecutemultitaskprogramThesystemusedtheripeindustrialGSMmodule，andthemodulecanbecontrolledbyATcommandTheo

5、perationisconciselyandcanbeeasilyunderstoodThesystemused12channelhighreliabilityGPSOEMboardItcantrack12satellitemaximallyatonetime，thismadeUScangetthebestGPSsatellitesignalinbadweatherandtrafficenvironmentInthesoftwarede

6、veloping，Wedividethesystembasedonmodularizationdevisingmethod，andgivesomeschemesofvariousmodule—realizationThispaperhasanalyzedthemeritsoftheGPSdatatransmissionbyGSMShortMessageService，andhascomparedmeritsanddemeritsbetw

7、eenGSM、Trunkingsystem、SinglechannelradiosystemTheGSMShortMessageServicehasfollowingmerits：theGSMnetworkiswide，andneednotconstructanewcommunicationnetwork；lowerrorprobability；largesystemcapacity；lowexpensesonsendingSMSAnd

8、itsdemeritsare：itsreal—timeperformanceisnotbetterthanthetrunkingsystemandsingle—channelradiosystem；itsuseisrestrictedbyChinaMobileCommunicationCompanyandUnicorn；usersofCMCCandUnicorncannotsendcellbroadcastSMS，SOwecannotb