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Greenhousecontrolsystemone,automaticcontrol.Usingthecomputertechnologyandthemoderncontroltheorytothegreenhouseeachkindofenvironmentfactor,includingthetemperature,theillumination,thehumidity,theCO2densityandappliesfertilizerandsoon,carriesontheautomaticcontrolandadjustsintothegreenhousecontrolthefundamentalmode.Accordingtothegreenhousecropshabitofgrowthandthemarketneed,thepartevencompletelygetsridofthenaturalenvironmenttherestraint,makestheartificialcreationbeingsuitablecropstogrowthebestenvironmentautomaticcontroltechnologicalmeanstobecomethemainstream.Thistimesgreenhousehasthequitecompletecontrolsystem,haseachkindofsensortogatherthegreenhouseenvironmentaldata,thesupervisorysystemreal-timemonitorenvironmentalvariationandthecontrolimplementingagencymovement,thegoodman-machinecontactsurfacecausesgrowersoperatingprocessimagemoreovertobesimple.Thiskindofcontrolsystemneedsthegrowertoinputthegreenhousecropstogrowneedstheenvironmentthetargetcomponent,thecomputerwiththetargetvaluewhichestablishesbeforehandcarriesonthecomparisonaccordingtosensorsactualobservedvalue,decidedthatthegreenhouseenvironmentfactorthecontrolledprocess,thecontrolcorrespondingorganizationcarriesontheheating,todecreasetemperatureandtoventilateandsoonmovements.Thecomputerautomaticcontrolsgreenhousecontroltechnologyhasrealizedtheproductionautomation,suitstheformalizationproduction,thelaborproductivityhastheenhancement.Throughchangesthegreenhouseenvironmenthypothesistargetvalue,maycarryonthegreenhouseinnerrimboundaryclimatecontrolautomatically,butthiscontrolmodemakestheresponsepromptlywithdifficultytothecropsgrowthconditionschange,involvestheinherentlawswhichwithdifficultythecropsgrow.Atpresentourcountrymajorpartindependentdevelopmentslarge-scalemodernizedgreenhouseandtheintroductionoverseasequipmentbelongstothiscontrolmode.Second,intellectualizedcontrol.Thisisinthegreenhouseautomaticcontroltechnologyandintheproductionpracticefoundation,throughthesummary,thecollectionagriculturedomainknowledge,thetechnologyandeachkindoftentativedataconstructstheexpertsystem,takeestablishestheplantgrowththemathematicalmodelasthetheorybasis,onekindwhichtheresearchdevelopsthegreenhouseexpertcontrolsystemtechnologywhichsuitsthedifferentcropstogrow.Thiskindofintellectualizationscontroltechnologytheagronomistsystemandthegreenhouseautomaticcontroltechnologyorganicsynthesis,takesbythegreenhousecombinedenvironmentfactorgatheringandtheanalysisobject,throughexpertsystemsconsultationandthedecision-making,givesthebestenvironmentparameterwhichthedifferenttimecropsgrowneed,andrestsonthisoptimumparametertothedatawhichreal-timeobtainstocarryonfuzzyprocessing,theautomaticselectionisreasonable,theoptimizedadjustmentscheme,thecontrolimplementingagencyscorrespondingmovement,realizesthegreenhouseintellectualizedmanagementandtheproduction.Theagronomistsystemhasprovidedonebrand-newprocessingcomplexagriculturequestionthinkingmethodandthetechnologicalmeansforus.Itcanactaccordingtothegreenhouseenvironmentalconditionandthecropsgrowthcondition,appliesthesuitableknowledgeexpressionandtheregularization,theinferencedecision-makingleavesmostsuitsthegreenhouseenvironmentwhichthecropsgrow.Appliestheagronomistsysteminthegreenhousereal-timemonitoringandtheautomaticregulationisthegreenhousedevelopmentnewluminescentspot.Thiscontrolmodebothcanmanifesttheinherentlawswhichthecropsgrow,thedisplayagronomistsinagriculturalproductioninstructionfunction,andmayusethecomputertechnologyfullythesuperiority,causessystemsregulationtobeconvenientandeffective,realizesthegreenhousecompleteintellectualizedcontrol.Therefore,thegreenhouseexpertcontrolsystemtechnologyisonekindisquiteideal,thecomparisontohavethecareerdevelopmentcontrolmode.Modernlarge-scalegreenhousetoachieveintelligentcontrol,computercontrolsystemmusthavenaturalventilationsystem,externalshadingsystems,internalinsulationandfinishsystems,wetcurtain/fanforcedcoolingsystem,CO2AirSystem,micro-mistsystem,premiumopticalsystem,irrigation/fertilizationsystem,breedingsystem,top-spraysystem,heatingsystem,plantprotectionsystems,lightingsystems,pickingsystemsequipment.Asavectorcontrolgreenhousecontrolsystemfromthecontrollersadvancedandreliableperformanceofthesensor,asound-artcontrolprocedures,suchasprintersandmonitors,toachievetheabove-mentionedgreenhouseequipmenttomonitortheoptimaloperation.Changringdevelopedautomatedcontrolsystemtoautomaticmeasurementofgreenhouseclimateandsoilparameters,andallgreenhouseequipmentcanbeconfiguredtoachieveoptimaloperationofautomaticcontrol,suchaswindows,heating,cooling,humidity,light,CO2supplementedirrigation,fertilization,andcirculationandsoon.Changringgreenhousedevelopedintelligentcontrolsystemclosed-loopcontrolmethodofoutdoorwindspeed,winddirection,sunlightradiation,temperatureandindoortemperatureandhumidityfactors,suchascollection,processingthroughthecontrollerwillcontroltheoutcomeofreturntothesceneandadjustthesceneimplementingagencies,theclimaticfactorsontheindoorreal-timecontrolimplementation,inordertoguaranteethecontrolofthereliabilityofprecisionandcontrol.Intelligentcontrolsystemofgreenhousegreenhouseenvironmentcontrolprocessparametersandoperatingparametersoftheexecutingagencyandotherinformationthroughthesensorintoelectricalsignalssenttothecomputer,theagriculturalexpertsystembasedondifferentcropsatdifferenttimesofthephysiologicalneedsofcropgrowthindifferentperiodsoftimesetautomaticallytemperature,humidity,lightandCO2concentrationasanidealrangeofthebestdataandtheactualtestingdataanddeviationsfromtheidealdatafortheregulationoftheamountofgreenhousegases.Whenthegreenhousetemperaturedeviationovertheupperlimitset,theissueofregulationofcomputerinstructions,theexecutingagencytoopentheventilationcoolingsystem;ifthegreenhousetemperaturebelowthesetminimumdeviation,theissueofregulationofcomputerinstructions,opentheventilationsystem;whenthehumidityislowerthanforHumiditywillbeunderthelimit,theissueofregulationofcomputerinstructions,openthehumidificationheatingsystem;whenCO2concentrationsexceedingtherangelimit,thecomputerautomaticallyswitchesventilationsystemandtheCO2generator.Greenhousecontrolsystemintelligentgreenhouseprospectsforthedevelopmentofstrategiesforsustainabledevelopmentintheopen,undertheguidanceofthenewdirectionofagriculture.Cropyieldsfromthepointofview,ithasahighoutputvalueperunitarea;onenvironmentalprotectionpointofview,itcannotonlyoutputcleanfruitsandvegetables,andasaresultofprecisecontrolofchemicalfertilizersandotheradditivesusedalsotoavoidtheonsoilandgroundwaterpollution.Greenhousevegetableproductionhasbeenextendedfromtheflowers,fruitsandlivestock,aquaculture,forestnursery,mushroom,Chineseherbalmedicineandotherfields.ThemodernizationofChinasgreenhouse,withtheexceptionofintelligentcontrolsystems,thebasichardwaresystemtoachievesynchronizationwiththeinternationallevel.Canbeseenthattheagriculturalexpertsystemappliedtoreal-timegreenhousemonitoringandautomaticcontroltechnologyisnodoubtanewbrightspotinthegreenhouse,thegreenhouseisalsoatrendinthedevelopmentofcontroltechnology.Itsdevelopmentpotentialandapplicationofalargespace,theactualproductionofthefarmersareveryimportantguidingsignificance.Meettheneedsofthegreenhouseproductionandeasethecontradictionbetweenthelackofexpertsinthefield,therebygreatlyimprovingtheconversionrateofscienceandtechnology,inplaceandthepenetrationrate.溫室控制系統(tǒng)一、自動控制。利用計算機技術及現(xiàn)代控制理論對溫室內(nèi)的各種環(huán)境因子,包括溫度、光照、濕度、CO2濃度和施肥等,進行自動控制和調(diào)節(jié)成為溫室控制的主要方式。根據(jù)溫室作物的生長習性和市場的需要,部分甚至完全擺脫自然環(huán)境的約束,使人為創(chuàng)造適宜作物生長最佳環(huán)境的自動控制技術手段成為主流。此時的溫室有比較完整的控制系統(tǒng),有各種傳感器采集溫室環(huán)境數(shù)據(jù),監(jiān)控系統(tǒng)實時監(jiān)測環(huán)境變化及控制執(zhí)行機構的動作,良好的人機界面使種植者的操作過程形象而且簡便。這種控制系統(tǒng)需要種植者輸入溫室作物生長所需環(huán)境的目標參數(shù),計算機根據(jù)傳感器的實際測量值與事先設定的目標值進行比較,以決定溫室環(huán)境因子的
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