基于单片机的直流电机的-外文文献

JournalofHarbinInstituteofTechnologyNewSeriesVol．21No．32014IntelligentTemperatureControlSystemDesignBasedonSingle-ChipMicrocomputerJunLi1Xian-LinMeng2Wen-LongSong11．CollegeofMechanicalandElectricalEngineeringNortheastForestryUniversityHarbin150040China2．SchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150001ChinaAbstractAdesignmethodofanintelligenttemperaturecontrolsystembasedonsingle-chipmicrocomputerispresentedinthispaper．Theintelligenttemperaturecontrolsystemisdividedintofourpartsmonitorheatercontrolledprocessandfeedbackloop．Amongthemthetemperaturedetectioncircuitisdesignedwiththeconductivityofwaterbysensordetection．TheopticalcouplerMOC3041isusedtoimplementthepowercontrolcircuitwhosecontrolobjectis1kWelectricheaterwiththe220ValternatingcurrentpowerkeyboardanddisplaycircuitSMC1602AincludefourbuttonsandLCDdisplaytoachievehuman-computerinteractionBasedonsingle-chipsystemSTC89C52thesensorsignalandkeyboardsettargettemperaturearecomparedtothepowerautomaticallyinordertofinishthewatertemperaturecontrol．Throughthestaticanddynamicdatatestingtheresultsshowthattheproposedmethodprovidesaneffectivewaytorealizethereal-timeacquisitionandcontroloftemperature．KeywordsmicrocontrollertemperaturesensorspowercontrolSCＲCLCnumberTP29DocumentcodeAArticleID1005-9113201403-0091-041IntroductionTemperatureistherepresentationofaphysicalquantityofhotandcoldobjectsandoneofthemostbasicphysicalquantityinourproductionandlife．Temperaturemeasurementisrelatedtovariousfieldsofindustryandagriculturalproduction．Temperaturecontrolisofcriticalimportancetoensuretheeffectivenessoftheindustrialproduction．Temperaturecontrolsystemalsoisanimportantpartofvacuumsmeltingprocess1．Thereforethetemperaturecontrolsystemiswidelyusedsuchasindustrializedculture2greengranary3Fumigationtherapy4air-conditioningsystem5andsoon．Howtoselectanapproximatelyoptimalcontrolstrategythroughreal-timemonitoringdatabecomesakeyfactorfortheenergy-savingoperation6－7．Variousstrategieshavebeenappliedonthetemperaturecontrolsystem．Thefuzzyself-tuningproportional-integral-derivativePIDalgorithmwhichiseasytoimplementandbeeffectivehasbeenwidelyusedinthetemperaturecontrolsystem8．AnoptimalapproachtemperatureOATcontrolstrategyisproposedforresettingthecondensingwatertemperaturehourlysotomaximizetheperformanceofthecombinedwaterchillerandcoolingtowersystem9．Zhenproposedatypicalmulti-variablelargetimedelayandnonlinearsystemself-extractingrulesfuzzycontrolSEＲFCmethodtomaintainastabletemperaturevalueinabuiltenvironmentchamberwithsupplyairsystemandhot-watersystem10．Basedonthemodifiedoutput-inputfeedbackOIFElmanneuralnetworksandthepredictionprincipleanadaptivePIDdecouplingcontrollerisdesignedtoachievetherapidpreciseandespeciallyindependentcontrolfortheupstreamanddownstreamtemperaturesofthedouble-levelairflowfielddynamicvacuumDAFDVcouplingsystem11．Thepresentstudyfocusesonsoftwaredesignsincludingapproachesandstrategiestocontroltemperaturechangesindifferentapplicationfieldsandtheresearchworkoftemperaturecontrolsystemhardwaredesignarerelativelysmallamount．Howeverifthereisnocorrespondinghardwaresupportagoodmethodisalsounabletobeused．Inthispaperthemainworkistodesignforthehardwarecircuit．Weusesinglechipmicrocomputertodevelopintelligenttemperaturecontrolsystemwhichhasahighercontrolconvenientlowcostflexibilityadvantages．ItisＲeceived2014－02－17．SponsoredbytheFundamentalＲesearchFundsforHeilongjiangPostdoctoralGrantGrantNo．LＲB11-334NaturalScienceFoundationofHeilongjiangProvinceGrantNo．QC2013C035HeilongjiangProvinceEducationDepartmentofScienceandTechnologyＲesearchFoundationGrantNo．12533014andtheFoundamentalＲesearchFundsfortheCentralUniversitiesGra[e-mail]．·19·JournalofHarbinInstituteofTechnologyNewSeriesVol．21No．32014provedintheexperimentthatthedesignhastheobviouseffectfortechnicalindicatorstoimprovethetemperaturecontrol．Asthehardwaresupportourcontrolsystemwillbefitforothertemperaturecontrolmethods．2SystemStructureDesignThecontrolsystemincludesfourunitssuchasmonitorheatercontrolledprocessstoragetankandfeedbacklooptemperaturedetectioncircuit．Fig．1showsthediagramofthedesignedcontrolsystem．InFig．1thewatertankisthecontrolledobjectthetemperatureofthewatertankisdetectedbythetemperaturesensorandthenthesignalistransmittedtothesinglechipmicrocomputer．ThefeedbacksignalandtheprefabricatedsignalarecomparedwithSCMwhichwillgivethequantityoftemperaturecontrol．Theheaterwillreceiveheatinginstructions．Finallythepowercontrollercancontroltheheatingpoweroftheheatingpipeandthetemperaturewillbecontrolledinoursystem．Heretheinterferencesignalismainlyduetotheheatingpowerchangescausedbycontactwithotherobjects．!#$%&’(%)#*)#+,#%)-#./0’)/1#%)#2##*&%(34//,5)/%6#)%0370)#$##0(#8’60%49-#)#+,#%)-#Fig．1Thesystemstructurediagram3SystemCircuitDesignAccordingtothestructurediagramofcontrolsystemwecanbuildthecircuitprinciplediagramasshowninFig．2．!#$%#&’($)*$%#+%$,$#$-#./&-.%-+.#0/1$%-/&#%/2-.%-+.#!#$%2$3$2,$#$-#./&-.%-+.#42%).&54(06789:;$=/%,.&*+#.?+.,-%@#2,.@*