列车追踪接近预警系统车载设备优化设计

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1、万方数据j匕塞变通太堂亟±童些堂僮途塞△旦墨!基△￡!ABSTRACTIIl‰developmentofRailways，thesecurityandefficiencyaretwoimportantandimmutablegoals．Existingrailsignalsystemcan’tcompletelyguaranteethesafetyoftrains·Anysmallerrormaycauseunpredictableconsequences．TheproposeroftheWaintracingandapproachingprec

2、autionarysystemisjustbasedonthiscondition．Thissystemisindependentofexistingrailsignalsystem，itcanofferanadditionalauxiliarycollisionavoidanceinformationforansafetyoperationasakindofthecollisionavoidancesystem．Thewholesystemconsistsofthegroundequipment，on-boardequipmentandwire

3、lesscommunicationequipment．On．boardequipment,anindispensablepartofthesystem，Canofferthesensordatafortrainlocation．Itcanalsosendthetrainstatusinformationreal-timelyforthewarningsystemandreceivethesafetywarninginformation．Thendisplaytheinformationtothedriverintheformofinterface

4、．Thispaperchoosestheon—boardequipmentforthetraintracingandapproachingprecautionarysystemastheresearchobject．Thispaperestablishestheresearchstatusoftheon-boardatthefirst，thenitpointoutthedisadvantagesofpresentresearchandproposeefficientoptimizationschemes．Accordingtotheoptimiz

5、ationoftheon—boardequipment，thispapermainlydependsontwosides，thedemandofthemaintenanceandtheimprovementofthewirelesscommunicationfunction．Tomeetthedemandofthemaintenance，wefirstlystudytherecordandmanagementofthelogs，andofferausefulmethodforthem，Secondly，wedesignthemethodwhich

6、canuploadthelogsto却remoteserverbyusingwifi．Bydownloadingandanalyzingthelogsontheserver,wecallgraspthestatusofallthefunctionmodulesoftheon-boardequipment．Toimprovethewirelesscommunicationfunction，werealizetheuseof3Gnetwork，thengivethemethodofwirelesscommunicationhandofftomeett

7、hedemandofthetraintracingandapproachingprecautionarysystemonthedifferentlines．Basedontheresearchanddesigningworkabove，thetestsinthelaboratoryandthefieldtrialsontheShanxiCoalTransportationCompanyrailroadfieldarecarriedouti11thepaper,whichincludethewirelesscommunication，themana

8、gement，uploadandanalysisoftheon—boardequipmentlogs．Andthefeasibility