1、分類號TP273學校代碼10129UDC621.3學號2009205036太陽能干燥裝置多點溫濕度檢測系統(tǒng)的研究ResearchOnTheMeasuringsystemOfTheMultiplepointTemperatureHuityFSolarDryingequipment申請人：吳克勤學科門類：工學學科專業(yè)：農業(yè)電氣化與自動化研究方向：電子技術應用指導教師：錢珊珠教授論文提交日期：二〇一二年五月ResearchOnTheMeasu

2、ringsystemOfTheMultiplepointTemperatureHuityFSolarDryingequipmentAbstractInagriculturalproductsdryingtemperaturehuitytestinghasbeenverywidespreadapplicationespeciallytemperaturehuityintheovensolarcollectaretwoveryimptant

3、factsoachievingmultipointtemperaturehuitytestingintheovensolarcollectsisanimptantfunctionfthedryingequipmentofagriculturalproducts.Departurefromthestatusofthedevelopmentofdomesticfeignagriculturalproductssolardryingdevic

4、ecombiningtheacteristicsofthecurrentlypopularonthemarkettemperaturehuitysenssIhasdesignedbasedonthesolardryingdeviceofmultipointtemperaturehuitydetectionbytheC8051F020MCUincludinghardwarecircuitdesignbetweenthesinglechip

5、peripheraldevicessensreadingwritingprogramtheLCDcycleprogramaprogramofthesinglechipwritingdatatoUdiskaswellasaprogramofaPCreadingUdiskdata.TheusercantakeaUdisktostetemperaturehuitydatatoopenbyatextfmatonaPCtoviewtemperat

6、urehuitydataindifferentlocationsatdifferenttimeperiodswithintheovencollecttodisplaythetemperaturehuitydatainrealtimeatthescene.FromtwofactsthesystemfunctionalitymaterialcostsIhasusedMCUC8051F020asthecontrolleredaDHT21dig

7、italtemperaturehuitysenstomeasuretakenSiliconAbatiesIDEcombiningKeilVsion3assoftwaredevelopmentplatfmfsystemdevelopmentusedtheC51programminglanguageutilizedCH372USBconversionchiptorealizethetemperaturehuitydataacquisitio

8、nstage.Thispaperhasdonewkasfollows:1）IhasdesignedameasuresystemoftemperaturehuityofsolarenergydryingdevicebasedonC8051F020MCUusedDHT21digitalsensstodetecttemperaturehuitywhichhasafastresponsehighreliabilityexcellentlongt

9、ermstability.2）Ihasdesignedakindofpowersupplycircuitwhichcangenerate5V3.3VDCvoltageakindofresetcircuitwhichcanrealizepoweronresetswitchresetfunctionamatrixkeyboardcircuitasoundlightalarmcircuitakindofthetemperaturehuitys