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基于 at89c51 温度 监测 系统 中文

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基于AT89C51的温度监测系统【中文2322字】,基于,at89c51,温度,监测,系统,中文

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DJINANDSLINEDSCSISE2011,AISC104,PP601605,2011SPRINGERLINKCOMSPRINGERVERLAGBERLINHEIDELBERG2011TEMPERATUREMONITORINGSYSTEMBASEDONAT89C51XINGRUILIU1ANDGUOHONGGAO21NETWORKMANAGEMENTCENTERXINXIANGUNIVERSITY,HENANXINXIANG,CHINAG14G245300349046838QQCOM2SCHOOLOFINFORMATIONENGINEERHENANINSTITUTEOFSCIENCEANDTECHNOLOGY,HENANXINXIANG,CHINA,453003GGH75QQCOMABSTRACTTHISPAPERPRESENTSALOWCOSTTEMPERATUREDETECTIONANDCONTROLDESIGNINCOMPOSITEFILMSOFTHEMATERIALPRODUCTIONBASEDONAT89C51THESYSTEMUSESNICKELCHROMIUMNICKELALUMINUMTHERMOCOUPLEASATEMPERATURESENSINGELEMENT,THEICL7135ASTHEADCONVERTER,DISPLAYINGTHEDETECTEDTEMPERATURETHROUGHTHELEDTHISPAPERFOCUSESONTHECOMPONENTSOFTHESYSTEMHARDWARE,THEDESIGNMETHODOFMICROCONTROLLERINTERFACECIRCUITANDSOFTWAREIMPLEMENTATIONPROCESSAFTERTESTING,THESYSTEMISACCURATEANDRELIABLEKEYWORDSAT89C51,TEMPERATUREMEASUREMENT,ICL7135,TEMPERATURECONTROL,MATERIALS1INTRODUCTIONTEMPERATUREISONEOFTHEMAINACCUSEDPARAMETERSINTHEINDUSTRIALOBJECT,ESPECIALLYINMETALLURGY,CHEMICALINDUSTRY,BUILDINGMATERIALS,MACHINERY,FOOD,PETROLEUMANDOTHERINDUSTRIES,THEFURNACE,HEATTREATMENTFURNACEANDREACTORAREWIDELYUSED,SOSTOVESANDHEATINGFUELAREDIFFERENT,SUCHASGAS,NATURALGAS,OILANDELECTRICITYTHEPROCESSANDTHETEMPERATURESREQUIREDAREDIFFERENT,ANDTHUSTHETEMPERATURESENSORSANDTHETEMPERATUREMETHODSAREDIFFERENTPRODUCTPROCESSISDIFFERENT,SOTHEPRECISIONOFTEMPERATURECONTROLISALSODIFFERENTTHUSTHEPRECISIONOFTHEDATAACQUISITIONA/DCONVERSIONANDCONTROLALGORITHMSAREALSODIFFERENTBUTASCONCERNEDTHEDYNAMICCHARACTERISTICSOFTHECONTROLSYSTEM,THATISBASICALLYTHELAGGINGPARTFORSUCHALINK,IFDELAYTIMEISSHORTER,PIDCONTROLCANBEUSEDIFALONGERDELAYTIME,DAHLINALGORITHMCANBEUSEDIFTHEDELAYTIMEANDTIMECONSTANTCHANGESLARGELYTHEPARTOFTHEAPPROVEDAMOUNTOFINVESTMENTVARIESGREATLY,ADAPTIVECONTROLALGORITHMCANBEUSEDINTHEPLASTICPACKAGINGALSOKNOWNASFLEXIBLEPACKAGINGINDUSTRY,ITISNECESSARYTOPUTANADDITIONALLAYEROFPUREWHITEORSILVERALUMINUMFOILONTHEBACKOFTHEEXQUISITEDESIGNSOFPRINTEDPLASTIC,WHICHNEEDSTOUSETAPELAMINATINGMACHINEITSMAINPRINCIPLEISTHATAFTERHEATINGITTOMELTRAWMATERIALSPRINTEDONTHEBACKATTACHEDTOFORMAPROTECTIVEFILMTOAVOIDSCRATCHINGPATTERNSLAMINATINGMACHINESNOWAREGENERALLYUNIVERSALTEMPERATURECONTROLDEVICES,ANDHAVEALARGERANGEOFTEMPERATURECONTROLANDLOWACCURACYASTHERESPONSESPEEDANDCONTROLACCURACYARELESSTHANTECHNICALREQUIREMENTS,GENERAL602XLIUANDGGAOTEMPERATURECONTROLDEVICESONTHELAMINATINGPROCESSWILLRESULTINTHELOWFIRMOFCOMBINEDPRODUCTSANDPOORHEATSEALINGTHISDESIGNIMPLEMENTSASPECIALTEMPERATURECONTROLDEVICEASTHETEMPERATURECONTROLPARTFORLAMINATINGMACHINETOSOLVETHEFLEXIBLEPACKAGINGINDUSTRYSLAMINATINGPROCESSESPROPYLENEMELTINGFURNACETEMPERATURECONTROLISTOINCREASEREACTIONSPEEDANDCONTROLACCURACY,THEREBYIMPROVINGPRODUCTQUALITYANDENTERPRISEEFFICIENCY2SYSTEMDESIGNTHEBASICREQUIREMENTSOFSYSTEMDESIGN1SYSTEMSHOULDBEABLETOSETTHEDESIREDTEMPERATUREPARAMETERSTHERANGEOFPARAMETERS04000C,ANDBEDISPLAYEDTHROUGHTHELEDDISPLAY2TEMPERATURECONTROLSYSTEMSHOULDBEABLETOACCURATELYDETECTTHEACTUALTEMPERATUREOFTHEOBJECTANDBEDISPLAYEDINTHELEDDISPLAY3THESYSTEMSHOULDBEABLETODETECTTHETEMPERATUREOFTHEACTUALPARAMETERSOFTHESIGNALSENTTOTHEPROCESSORAFTERTREATMENT,THEPROCESSORSHOULDBEABLETOGIVETIMELYANDSAFETEMPERATUREDIFFERENCEBETWEENPREALGORITHMPARAMETERS,ANDGIVECONTROLSIGNALSANDIMMEDIATELYADJUSTTHETEMPERATURE4SYSTEMSHOULDBEABLETOSTORETHEPARAMETEROFTHESYSTEMSETTINGSINTHISVALUETONORESETTINGTHENEXTTIME5AFTERTHESYSTEMDESIGNISCOMPLETE,THEACTIONSHOULDBESTABLE,CONTROLACTIONSHOULDBECORRECT,CONTROLACCURACYSHOULDBEWITHIN5TOMEETTHEBASICREQUIREMENTSABOVEMENTIONED,TEMPERATURECONTROLSYSTEMUSESTHEAT89C51MICROCONTROLLERASTHEMAINCHIPTOACHIEVEICL7135ADCONVERSION,COMBINEDWITHTHEEXTERNALMCUCLOCKCIRCUITSMATURE,HIGHPRECISIONVOLTAGEREGULATOR,BUSDRIVERSANDOTHERDEVICESASSHOWEDINFIGURE1FIG1SYSTEMSTRUCTUREDIAGRAMINFIGURE1,THEMELTINGFURNACEISTHECONTROLLEDOBJECT,THECONTROLPARAMETERISTHEMELTINGFURNACETEMPERATURESYSTEMOUTPUTYCHANGINGTHEGAININGANDLOSINGSTATEOFSINGLEPHASEOFSOLIDPOWERLOOPDC432VCANCONTROLTHEHEATOFHOTPLATEANDTEMPERATURETHETEMPERATUREISDETECTEDBYTHETHERMOCOUPLETHETHERMOCOUPLEOUTPUTISUNDER100MV,AFTERASIGNALCONDITIONINGCIRCUITINTOA02VSIGNAL,THENTHEA/DCONVERTERTRANSFERSITINTOADIGITALSIGNALSENDTOMICROCONTROLLERAT89C51THETEMPERATUREMONITORINGSYSTEMBASEDONAT89C51603MICROCONTROLLERUSESTHESETTEDTEMPERATUREANDACTUALTEMPERATUREOFTHEFURNACESYSTEMTOOBTAINE,ANDTHENUSESPIDALGORITHMOUTPUTTOGETUKDIGITAL,WHICHISADDEDTOTHECONTROLLINEBBYTHED/ACONVERTERINTOANALOGAMPLIFICATION,THEREBYCHANGINGTHEMELTINGFURNACETEMPERATURETEMPERATURERANGE0400G19G38TECHNICALREQUIREMENTIS0400G19G38,TEMPERATURECONTROLACCURACY05EPROMISUSEDFORSTORINGPROGRAMSANDFORMSRAMISUSEDFORSTORINGDATATEMPORARILY8255AISUSEDTOEXTENDTHEPARALLELPORTFORCONNECTINGPRINTERSANDOTHEREXTERNALDEVICESKEYBOARDORDISPLAYPANELISUSEDFORINPUTTINGANDDISPLAYINGDEVICEPARAMETERANDTHESETTINGAMOUNTSERIALPORTISUSEDFORCOMMUNICATINGWITHOTHERCOMPUTERSASTHETEMPERATUREOFMELTINGFURNACEIS0400G19G38,SOTHEDESIGNUSESNICKELCHROMIUMNICKELALUMINUMTHERMOCOUPLEASDETECTIONCOMPONENTS,SUBDEGREENUMBERISEU,THEOUTPUTSIGNALIS04132MVELECTRONICCONTROLTRANSMITTERUSESTHETRANSMITTERMA,THEOUTPUTIS010MA,ANDTHENGOESTHROUGHTHECURRENTVOLTAGECONVERTERCIRCUITTOTRANSFORMINTO02VSIGNAL,THENGOESTOA/DCONVERSIONTHROUGHTHEA/DCONVERSIONCIRCUITA/DCONVERTERADOPTSDOUBLEINTEGRALA/DCONVERTERICL7135,WITHARESOLUTIONOF1/20000,THATIS0005G19G38,FULLYMEETINGPRODUCTPROCESSREQUIREMENTSHEATUSESSINGLEPHASEAC220V,2500WHEATINGPLATETOSUPPLYHEATFORMELTINGFURNACETHECONTROLDEVICEUSESSINGLEPHASE432VDCCONTROLLEDSOLIDSTATERELAYSSYSTEMMASTERSCHEMATICISSHOWEDINFIGURE2FIG2THEMAINCONTROLCIRCUITPRINCIPLEDIAGRAM604XLIUANDGGAO3SOFTWARECONTROLALGORITHMDESIGNINTHEDESIGN,INORDERTOIMPROVETHESYSTEMPRECISION,THEGEARSHIFTINTEGRALPIDCONTROLALGORITHMISADOPTEDINTHEHYPOTHESISTOKEEPTHETEMPERATUREFOR400C,WHENTHEDEVIATIONISMORETHAN5,TOABANDONINTEGRALITEMSTOTALLYWHENDEVIATIONLESSTHAN1,TOKEEPALLINTEGRALITEMSWHENDEVIATIONISBETWEEN1TO5,TOINCREASEINTEGRALITEMSINDIMINISHINGWHENTHEDEVIATIONIS1,EQUIVALENTTO4C,CORRESPONDINGTOTHEBINARYNUMBERB1WHENTHEDEVIATIONIS5,EQUIVALENTTO20C,CORRESPONDINGTOTHEBINARYNUMBERB2B2B1B3THEPOSITIONALOUTPUTOFINCREMENTALGORITHMOFPIDCONTROLSGEARSHIFTINTEGRALDIFFERENTIALEQUATIONISASFOLLOWSG1612UKKPEKNKIEKKDEK2EK1EK2UKUK1G1612UKN1|EK|B2G3240NB2EK/B2B1B11,1B2N0|EK|B1EKXYKK1KPT/T1,TISTHESAMPLINGPERIODS,T1ISINTEGRALTIMES,KISSCALECOEFFICIENTSKDKPTD/T,TDISDIFFERENTIALTIMESEKISTHEDEVIATIONXISTHEBINARYNUMBERSSYSTEMGIVENYKISCORRESPONDINGTOTHEA/DCONVERTERSOUTPUTBINARYNUMBEREK1ISTHELASTSYSTEMDEVIATION,EK2ISTHEMORELASTDEVIATIONTHEUK1ISTHELASTUKVALUECALCULATIONRESULT4SYSTEMTESTANALYSISAFTERTHETEMPERATUREMEASUREMENTANDCONTROLSYSTEMISCOMPLETED,THEWHOLESYSTEMISCONDUCTEDFIVETESTSITCANBESHOWNTHROUGHTHETESTRESULTS,INTHESYSTEMALLOWEDSETTEMPERATURERANGE0400G19G38,THATTHESYSTEMCONTROLPRECISIONCANBEINBETWEEN05AND05,WHICHCANCOMPLETELYSATISFYTHEPRODUCTTECHNIQUEREQUIREMENTSASSHOWNINTABLE1TABLE1THETESTRECORDRESULTSOFFIVETIMESTIMESSETTEMPERATURE0CINITIALTEMPERATURE0CDISPLAYTEMPERATURE0CRESPONSESPEEDSCONTROLPRECISION12182142173004229727829611003334231234365024359352361560275384364385125026TEMPERATUREMONITORINGSYSTEMBASEDONAT89C516055CONCLUSIONTHISDESIGN,BASEDONTHESINGLECHIPASTHEKEYCONTROLPARTS,ADOPTSADVANCEDTEMPERATUREMEASURINGELEMENTANDSCIENTIFICDATAACQUISITIONANDPROCESSINGTECHNOLOGYANDADVANCEDHEATINGCOMPONENTSANDCONTROLMETHOD,WHICHISHELPFULFORIMPROVINGTEMPERATUREMEASUREMENTANDCONTROLPRECISIONANDEFFECTIVELYIMPROVINGTHERESPONSESPEEDOFSYSTEMWHATSMORE,