基于PIC单片机的通用胎压监测系统的设计外文翻译完成版.docx

基于PIC单片机的通用胎压监测系统的设计外文翻译完成版.docx

《基于PIC单片机的通用胎压监测系统的设计外文翻译完成版.docx》由会员分享，可在线阅读，更多相关《基于PIC单片机的通用胎压监测系统的设计外文翻译完成版.docx（9页珍藏版）》请在冰豆网上搜索。

基于PIC单片机的通用胎压监测系统的设计外文翻译完成版

毕业设计（论文）外文资料翻译

系别：

电子信息系

专业：

通信工程

班级：

B090310

姓名：

李莎

学号：

B09031038

外文出处：

网络资源

附件：

1.原文；2.译文

2013年03月

原文：

DesignofUniversalTPMSBasedonPICMCU

1Introduction

Withthehighspeedofroadnetworkboomingrise，Trafficisdeveloped，Vehiclespeedincreasing,traffichazardspreventionproblemsimminent,ifbecauseofthetireair-leaksandexplosionetccausetrafficaccident,manyarebytyresworktohightemperatureorunreasonabletirepressurecause.Researchcartirestirepressuremonitoringsystemofmodernautomobiledriving,whentheeconomy,safetyandmanipulationstabilityisparticularlyimportantpracticalsignificance.

HardwareconstitutionandsoftwaredesignmethodoftheuniversalTPMSareintroducedbasedonPICMCU.TheDesignprojectsoftheremotemonitoringmodulebasedoninfineonSPI2sensor,MicrochiprfPIC12F675FwithASK/FSKtransmitterandthecentralreceivermodulebasedonMicrochipPIC16F877Aaredescribed,andhardwarecircuitryandrelatedprogramsflowcharts,communicationprotocolsandalgorithmsaregiven1Thesystemcanmeasurethetire'sinteriortemperature,instantaneouspressure,voltageandaccelerationatanytime,indicatetheblooeytiresandalarmthedrivertoavoidthedanger.It'sofgreatimportanceforthepopularizationandoptimizationoftheTPMSinourcountry.

Asauthoritativeresearchindicates,thekeytoPreventatireblow-outismaintainingstandardtirePressureanddetectingtirefaultbeforehand.Thus,tirePressuremonitoringbecomesmeaningfulandimportant.

TPMS（TirePressureMonitoringSystem），Mainlyusedinautomobiledrivingreal-timemonitoringoftyrepressureautomatically.Currentlydevelopedcountriesofthetirepressureearly-warningsystemmainlydividedintotwotypes:

oneisJiaJieShi,itthroughcarABS（antiholdingbrakesystem）ofthewheelsensorandtyremechanicalmodel,indirectlycalculatedfortyrepressure,inordertoachievethepurpose;monitortyrepressureAnotherkindisdirecttype,itUSESinstalledineachofthetireswithlithiumionbatteryforpowersupplypressuresensortodirectmeasurementoftyrepressure,andthroughwirelessmodulationlaunchtoinstallinsearchofmonitor,andmonitoratanytimedisplayvarioustyrepressure,driverscanintuitiveyunderstandingeachtirepressurecondition,whenthetyrepressureistooloworhaveleakage,thesystemwillautomaticallyalarm,ensuresafety.

TPMSasanewtypeautomobileactivesafetydevicehasbeendevelopingrapidlyinrecentyearsworldwide.Sinceitcouldmonitortirepressureandtemperatureinrealtimeandalertthedriverintime,mosttrafficaccidentscausedbyflattirecouldbeavoidedtoensuresafedriving.ThedevelopmentoftirepressuremonitoringsystemsisreviewedincludingwheelspeedbasedTPMS,pressure-sensorbasedTPMSandthecominggenerationsocallednon-batterypassiveTPMS.ThecomponentsandworkingmechanismoftirepressuremonitoringsystemareintroducedandtheirmeritsanddefectsanalyzedandcomparedwiththeemphasisonthreedominantdirectTPMSsystems,whicharesignificantinitsresearchanddevelopment.Theprospectoffuturedevelopmenttrendislookedahead.Thenon-batteryTPMSisexpectedtoreplacethecurrentoneandbecomethedominant.

Wirelesssignaltransmissionstabilityreliabilityinsufficiency,thebatterylifeproblem,sensorlifeanddurabilityproblem,isthepresentTPMSproductsinthecommonproblem.Thissysteminadditiontothesensor,alluseMicrochipcompanytransceiverchipandmicrocontrolprocessor,lowenergyconsumption,goodcompatibilityandhighreliability.AndutilizeFSKmodulatormode,one-waycommunicationmode,improvingthesystemofsignaltransmissionofanti-interferenceability.CombinedwiththesystemUSEStheSP12sensorandmonitoringmodulemicroprocessorrfPIC12F675Fcharacteristics,adoptLFlow-frequencysenseitechnology,time-sharingsendandreceivedifferentmonitoringmodulerfsignals,thussolvingsignalcollisioninterferenceproblems,andfurtherenergysavingsystem.

2SystemRequirements

Causeaflattireandblowoutreasonsareasfollows:

tyretemperatureisexorbitant,

thetyrepressuretoobig,

tyresusedforalongtime,

tireoverload,

automobiledrivingtoofast.

Forthatcartobeinasafedrivingcondition,driversmustindrivingprocessreal-timeunderstandtyreoverpressure,voltage,temperature,etc.Workofthestate,thesystemhasthefollowingfunctions:

real-timemonitortirepressure,temperatureconditions,

whenatireover-voltage,overheating,automaticsoundandlightalarm,

whenatyreinundervoltagecondition,correspondingtheadvantagesindicatoremitlight.

3HardwareDesign

ThesystemwasdividedintotwoPartsfunctionally:

tirePressuremeasuringblockandcentralmonitoringblock.

Thehaudwarecomposition