3、ystemforGreenhouse100697216LiMingjieTeacher:SuYanpingAbstractGreenhouseis the basicequipment necessaryfortheproduction of modernagriculture,Useitcaneffectivelycontrolthetemperature,humidityandilluminationofthegreenhouse,anditisthepremiseofchangedforplantgrowthtocreatethebestcond
4、itions,avoidchangingseasonsandsevereweatheroutsideofitsimpact.Thethesismainlyfocuson:thebaseblockdiagram,workingprincipleandthedesignofrelaycontrolwhichusetheSCMSTC89C52asthecoreofthesystemtocollect,handle,displaythedataoftheairtemperature,soilhumidityandlightilluminance.The mai