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1、西南交通大学研究生学位论文车辆制动检测装置的研制年姓级二00四级名高敏申请学位级别硕士专业测试计量技术及仪器指导教师王雪梅副教授二oO七年五月西南交通大学硕士研究生学位论文第J}页ABSTRACTWithfastdevelopmentofthehigh-speedcoachandtheheavy-loadfreightcar,thereisofhigherdegreerequirementforreliabilityandsecurityofWainbrakingsystem.Inhistory,theaccidentsofbrakefailurecreatedlargelossfor
2、lifeandproperty.Withthedevelopmentofcomputerdetectiontechnology,installingthereal-timedetectiondevices011thebrakingsystemisalleffectivetechnologicalmeasul"etomakethebrakingsystemworknormally.Thedetectinganddiagnosingdevicecangivewarnswhenthebrakingsystembrakedown,andprovidedatabasisforattendants
3、tosolveproblems,thereforeeilhauceefficiencyoffieldprocessing.Inaddition,becausooftheuarepeatablebrakingfailures,whichOCCtll"duringtrainnmning,thetrainmaintenanceismoredifficultwhenthetraingobacktovehicled印artment.Sothispaperresearchesonthevehiclebrakingdetector,whichisusedtomonitortheworkofthebr
4、akeonrealtimeduringthea.血nmning.Thedesigneddetectorcallstoremassmountofdata,processthedetecteddataandgivewarning.Ithaspositiveeffectontrafficsafetyandcallellha,ucevehiclemaintenancetechnology.Becauseofspecializationoftrain’Sapplication,thevehiclesmayrunthroughseveraldaysfromstartstationtodestina
5、tionandreturntooriginalstation.Inordertomonitortheworkingstatusofthebrakeduringthewholerunningprocedure,large-eapaeitystoragemustbesolvedfirstly.What’smore,consideredagoodhuman-machineintcrfacc,thcembeddedmicroprocessor$3C2410XbaseonARM9ischosenatlast.Thewholedeviceisthree—layersuperimposedstruc
6、ture.Thetop1ay髓isLCD,whichdisplaysstateinformationofbrakingsystemandprovidesgoodhuman-machineinterface.ThesecondlayerisCPUmodule,whichfunctionsarecollecting,processing,diagnosingandstoring.Thelastlayerissignal-conditioningmodule,whichrealizessignalamplificationandfiltering.Thecorrespondingcireui
7、tsarealsodesignedandmade,whichconsistofCPUcoremodule,LCD&TSPinterface,SDinterface,UARTinterface,powerconversionmodule,signalconditioningmoduleandcollectingmoduleetc.BasedonpC/OS-Ⅱreal-timeembeddedoperationsystem,therelatives