機(jī)電伺服觸覺(jué)式秸稈導(dǎo)向系統(tǒng)試驗(yàn)研究.pdf

1、Y77354L分類呼：密緩：。專蛾差≮夭等’學(xué)位論文單位代碼：10019學(xué)號(hào)：B02368機(jī)電伺服觸覺(jué)式秸稈導(dǎo)向系統(tǒng)試驗(yàn)研究Studyonfeelerbasedguidancesystemwithelectro—Mechanical研究指導(dǎo)servofollowingstubble合作指導(dǎo)教師：申請(qǐng)學(xué)位門類級(jí)別：墨鱟譴一稱：盤些墊熊垡蘭垂向：墊熊蓮查生鹽蓮墊型蕉院：墨鱟瞳2005年6月名方學(xué)業(yè)究在專研所AbstractPlantingw

2、heatwithouttillageaftermaiTmharvestingisahardproblemthroughtheextensionofconservationtillagetechnologysysteminthedistrictoftwocropsoneyearinnorthchinaForthisproblem，allideaofsowingwheatfollowingthemaizerOWSispresentedbyc

3、onservationtillageresearchcenterinChinaAgriculturalUniversityAnotillwheatplanterfollowingthiscenceptisdesignedoutwithopenermovingaheadbetweentwowsofmaizestubbleandpreventingfromimpactingthemThisobjectionachievedrelayingo

4、nthedriverandhisexperienceThemaizerowspaceis600mmandthatofwheatis150mmThreolOWSofwheatissownbetweentwomaizerowsandthespacefromopeneroutboardsidetomaizestubbleistheoreticallyabout150ramInviewofrootradiusofabout30～50mmofth

5、estubble。individualmaizeoffsetfrombeelineisabout20mmresultinginthesteeringoffsetbydriverswithinlOOmmIfplanterissteeredoverthisoffsetdistance，itisfrequenttooocilrwithstubbleimpactionbytheopenerandimplementblockageandplant

6、ingqualitydegradationButsonalTowoffsetistoohardt0cnsul℃evenbythemostexperienceddriverunderhighconcentrationTosolvethisproblemafeelerbasedguidancesystemfollowingstubblewitllelectromechanicalservoisestablishedThesystemisut

7、ilizedonthenotillwheatplanterwiththefollowingresultsandconclusionthoughsomeexperiments：1ItisthefirstresearchtoutilizefeelerbasedguidancesystemtoimprovelinearityofplantingoperationinchinaTheguidancesystemisdesignedwiththe

8、referenceofstandingmaizestraworstubbleinthefieldaccordingtotheenvironmentandtheoperationrequestofnotillplantingandtheprincipleofnotillwheatplanterfollowingrowsTheresearchisdevelopedoilthebaseofanalysisdetectionmethodfora

9、griculturalvehicleandprovidedtechnologicalsupportforfurtherimprovementofwheatnotillplantingqualityfollowingstandingmaizestrawinstubblecoverfield2AunitofsignalprocessingbasedonmicrochipcontrollerisdesignedItiscomposedofsi

10、gnalinputchannel∽transfermodule)signalprocessor(microchipcontroller)，signaloutputchannelfD／Atransfermodule)andwires，ete3AsteeringcontrolsystemisdesignedonthebaseofhydraulicelectronicSCWOandfeedbackcontrolwiththecomponent

11、sofsignalreceiversteeringforceproducerandtransmittersteeringexecutorandfeedbackcontrollerere4TheparameterandperformancetestoftheguidancesystemTheforcethatmaizestrawgotanddistributionallinearityofstrawhasanalysisTherelati

12、ondiagramofinputpulsenumberandstearingangleoffrontwheelandfunctionplotoftwovariablesisgotthoughmeasurementofrelationbetweenrotationangleofwalkingmotorandfrontwheelTherelationcoefficientofinputpulsenumberandsteeringangleo

13、ffrontwheelis09907withthemeaningofmarkedcorrelationbetw∞ntwopartsButinterceptis10728fromtheregressequationwhichimplyimitationlinenotgothoughtheoriginofcoordinateandthedeflectionangleis10728Theminusinthefrontimplythereisa