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1、原文：DesignofUniversalTPMSBasedonPICMCU1IntroductionWiththehighspeedofroadnetworkboomingrise，Trafficisdeveloped，Vehiclespeedincreasing,traffichazardspreventionproblemsimminent,ifbecauseofthetireair-leaksandexplosionetccausetrafficaccident,manyarebytyresworktohightemperatur
2、eorunreasonabletirepressurecause.Researchcartirestirepressuremonitoringsystemofmodernautomobiledriving,whentheeconomy,safetyandmanipulationstabilityisparticularlyimportantpracticalsignificance.HardwareconstitutionandsoftwaredesignmethodoftheuniversalTPMSareintroducedbase
3、donPICMCU.TheDesignprojectsoftheremotemonitoringmodulebasedoninfineonSPI2sensor,MicrochiprfPIC12F675FwithASK/FSKtransmitterandthecentralreceivermodulebasedonMicrochipPIC16F877Aaredescribed,andhardwarecircuitryandrelatedprogramsflowcharts,communicationprotocolsandalgorith
4、msaregiven1Thesystemcanmeasurethetire'sinteriortemperature,instantaneouspressure,voltageandaccelerationatanytime,indicatetheblooeytiresandalarmthedrivertoavoidthedanger.It'sofgreatimportanceforthepopularizationandoptimizationoftheTPMSinourcountry.Asauthoritativeresearchi
5、ndicates,thekeytoPreventatireblow-outismaintainingstandardtirePressureanddetectingtirefaultbeforehand.Thus,tirePressuremonitoringbecomesmeaningfulandimportant.TPMS(TirePressureMonitoringSystem)，Mainlyusedinautomobiledrivingreal-timemonitoringoftyrepressureautomatically.C
6、urrentlydevelopedcountriesofthetirepressureearly-warningsystemmainlydividedintotwotypes:oneisJiaJieShi,itthroughcarABS(antiholdingbrakesystem)ofthewheelsensorandtyremechanicalmodel,indirectlycalculatedfortyrepressure,inordertoachievethepurpose;monitortyrepressureAnotherk
7、indisdirecttype,itUSESinstalledineachofthetireswithlithiumionbatteryforpowersupplypressuresensortodirectmeasurementoftyrepressure,andthroughwirelessmodulationlaunchtoinstallin12searchofmonitor,andmonitoratanytimedisplayvarioustyrepressure,driverscanintuitiveyunderstandin
8、geachtirepressurecondition,whenthetyrepressureistooloworhaveleakage,thesystemwillautomaticallyalarm,ens
