基于单片机温度监测系统设计的外文翻译

外文文献资料DistributedTemperatureSensor1.Sensorintroduction1.1TemperaturesensorbackgroundInthehumanlivingenvironment,temperatureplayinganextremelyimportantrole。Nomatterwhereyoulive,engagedinanywork,ever-presentdealtwithtemperatureunder.Sincethe18thcentury,industrysincetheindustrialrevolutiontowhethercanmastersendexhibitionhastheabsolutetemperaturetouch.Inmetallurgy,steel,petrochemical,cement,glass,medicineindustryandsoon,cansayalmosteightypercentofindustrialdepartmentshavetoconsiderthefactorswithtemperature.Temperatureforindustrialsoimportant,thuspromotingthedevelopmentofthetemperaturesensor.1.2TemperaturesensordevelopmentMajorgeneralthroughthreesensordevelopmentphase:analogintegratedtemperaturesensor.Thesensoristakenwithsiliconsemiconductorintegratedworkmanship,thereforealsocalledsiliconsensorormonolithicintegratedtemperaturesensor.Suchsensinginstrumentshavesinglefunction(onlymeasuringtemperature),temperaturemeasurementerrorissmaller,pricelow,fastresponse,thetransmissiondistance,smallvolume,micro-consumptionelectronicetc,suitableforlongdistancemeasurementtemperature,temperaturecontrol,donotneedtoundertakenonlinearcalibration,peripheralcircuitissimple.Itiscurrentlythemostcommonapplicationathomeandabroad,anintegratedsensor。TypicalproductshaveAD590AD592,TMP17,LM135,etc.jAnalogintegratedtemperaturecontroller.Analogintegratedtemperaturecontrollermainlyincludetemperaturecontrolswitch,programmabletemperaturecontroller,atypicalproducthaveLM56,AD22105andMAX6509.Someincreasestrengthtypeintegratedtemperaturecontroller(forexampleTC652/653)alsocontainstheA/Dconverterandcuregoodsequence,thisprocesswiththeintelligenttemperaturesensorsomesimilarities.Butitisnotitssystem,workbymicroprocessingdevicecontrol,thisisthemaindifferencebetween.Intelligenttemperaturesensor.intelligenttemperaturesensor(alsocalleddigitaltemperaturedegreessensor)isinthemid1990slaunch.Itismicroelectronicstechnology,computertechnologyandthedynamictestingtechnology(ATE)crystallization.Intelligenttemperaturesensorinternalcontaintemperaturesensor,A/Dconverter,signalprocessor,memory(orregisters)andinterfacecircuit.Someproductsstilltakemultiplexer,centralcontrolsystemdevice(CPU),randomaccessmemory(RAM)andreadonlymemory(ROM).Intelligenttemperaturesensorischaracteristicoftemperaturedataandrelevantcanoutputthetemperaturecontrolofthequantity,adaptationvariousmicrocontroller(MCU);1.3SinglepointandmoretemperaturesensorThedevelopmenttrendofthetemperaturesensor.Inthe21stcentury,thetemperaturesensorisheadedinhighprecision,multi-function,bus,standardization,highreliabilityandsafety,developmentofvirtualsensorandnetworksensor,researchmonolithictemperaturemeasuringsystemandotherhigh-techdirectiondeveloprapidly.Sensorsintheapplicationtemperaturecontrollingsystem.Currentmarketexistsmainlysinglepointandmoretwotemperaturemeasurement.Forsinglepointtemperaturefoundmentinstrument,mainlyadoptsthetraditionalanalogintegratedtemperaturesensor,whichheatresistance,thermocouplesensorsmeasuringaccuracy,highmeasurementrange,andgotthegeneralapplication.Thisproductistemperaturemeasuringrange℃~200mostlybetween800℃,resolution12th,andleastdistinguishabletemperaturein0.001~0.01between.CabinLEDdisplaymodule,showsrangingfrom4to16.Someinstrumentsalsohasmemoryfunction,canstoreseveralhundredtoafewthousandsetsofdata.Thisinstrumentcanbeverygoodmeetasingleusersingle-pointmeasurementneeds.Moretemperaturemeasurement,relativeandsinglepointmeasurementprecisionhascertaingap,althoughrealizedthemulti-channeltemperaturemeasurementandcontrol,butthepriceisexpensive.Inviewofthepresentmarketsituation,proposedthistopiccansatisfyrequirements,scalableandcost-effectivesingle-chipmulti-channeltemperaturemeasuringsystem.ThroughthefirsttemperaturesensorDS18B20acquisition,andthenthroughtheC51SCMprocessinganddisplayedonthedigitaltube,canbecollectedindoororagreenhousearoundindifferentlocationsofthetemperature,withfourdigitaltubetodisplay.Thefirstdigitalpipedisplayacquisitioniswhichway,whichchannel.Threedigitalpipedisplayaftertheacquisitionchannelbytemperature,accurateto0.1degrees.2.Thesystemrealizedandrelatedtechnologies2.1.ThesystemisrealizedBythewholecontrolsystemforcoreAT89C51,usingfourwaysoftemperaturesensorDS18B20inproductionsitefordistributionareaoffourdifferenttemperaturemeasurementresultwiththechipchecking,collationstoreanddisplay,andthroughthebuttoncontrol,temperaturewillprocessaftertheLEDdigitaldisplaytocomeout,andthesoftwareassurancesystemanti-interferencecapacity。fourDS1820connectedtoMCUrespectively,thisschemefourIOmouthoccupyMCUfourIOthough,butthemicrocontrollerIOmouthundertheconditionofmouthnotshortagebythisschemegreatlysimplifyprogrammingdifficulty,shortenthedesigncycle,alsocanguaranteethestabilityofthesystem.Amultipointconnectionasshown“1-1”1-1multipointconnection2.2.AT89C51ChipintroductionAT89C51isa4KbytesFLASHMemory(ErasableProgrammableandFPEROM-FLASHforthecampaignswith)lowvoltage,high-performanceCMOSeightmicroprocessors,commonlyknownasthemicrocontroller.AT89C2051isa2Kbyteswithflashmemorycanbeerasedprogrammab