農(nóng)藥藥水在線混合效果的數(shù)字圖像處理技術(shù)研究.pdf

1、南京林業(yè)大學碩士學位論文農(nóng)藥藥水在線混合效果的數(shù)字圖像處理技術(shù)研究姓名：郭敬坤申請學位級別：碩士專業(yè)：機械設(shè)計及理論指導教師：徐幼林20080601ABSTRACTNowadaystheplantdiseasesandinsectpestsarethreateningthea酊culturala11dforest叫productioninC11inaauldthepesticideapplicationisinemcientaSthem

2、ainpreventionandcontrolmeaIlsItwas1essthan35％oftotalpesticidethatcantakeeffectbecauseofthelowe瓶cient印plic“on，the仃aditionalplantprotectionmachineries，a11dthepoor印plicationtecIulology(especiallythemixingofpesticideandwater

3、)，whichbroughtaboutthepesticidewaste，environInentp011ution，pesticideresidueandpesticideresistance，butalsothelifesa如tyt11reateningofpeopleandanimalsTherefore，itisimpoIrcamtostudytheprecisionpesticideapplicationtechnologyb

4、asedonthedirectinjectionsystemforpesticidesprayer，whic_hcandecreasetllepesticidecostofplantdiseasesa11dinsectpreventionandconnol，improvethee銜ciencyofpesticideapplication，andprotectec0109icalenvirollnlentandthelifesafe毋an

5、dhealthofpesticideapplicationoperatorsFirstly’memeasurementsystemandimage。collectingsystemofdirectinjectionsystem、VasimprovedforpesticidesprayerTheexperimentalsystemincludedthreesub—systems：theliquid—providingsystem，them

6、ixeranddetectionsystem，theimageacquiringandprocessingsVstemAtDresent，mestudiesonmixersbominChinaandabroadmostlyfocusedonnumericalsimulationButthehi曲一speedc鋤eraandthedigitalimageprocessingtechnologywerefirstlyappliedtostu

7、dythemixingefrectofthemixerThep01ystyrene、vaschosenasme仃acingpanicletofollowthenowoftheliquidpesticide，aIldthemixingimageswereacquiredasthe、vorkconditionsofthep啪pwerechangedAndamethodforrecti母ingbaddegreeofuniforInityofb

8、ackgroundwaSbrou曲tfonvardtosolvethebadconditionofthepanicleimageThebubblesa11dthetracingpaniclesweresuccess向llyseparatedt11rou曲themethodofMathematicalMorphol02v’andmenthecentroidcoordinateofparticleswasobtained。Atlast，th

9、eresultsofthemixin2perfomlance、Verea11alyzedandcalculated，anditwasfoundthatnotonlythedi腩rent、Vorkconditionsofthepumphaddifferentefrectsonthemixingperformance，butmedistributionofthepanicleshadthee虢ctsonthemixingperfonn舶【c

10、eofthemixerTheveloci餌fieldofthemixer’sexitwaSsimulated，andtherelationshipbetweenvelocit)，fielda11defrectofmixing、vas矗J】曲erstudiedInordertoextendthe印plicationofthedigitalimageprocessinginefrectofmixers，t11emixingimageproc