基于DSP的溫室黃瓜幼苗缺水信息檢測系統(tǒng)的研究.pdf

1、華中農(nóng)業(yè)大學(xué)碩士學(xué)位論文基于DSP的溫室黃瓜幼苗缺水信息檢測系統(tǒng)的研究姓名：張曉龍申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)機械化工程指導(dǎo)教師：樊啟洲20070501摘要ABSTRACTWiththedevelopingofagriculturalautomaticmechanism，moreandmoremodemtechnologysuchasimageprocessingisinvolvedinagriculture1nhcimageproce

2、ssingandmachinevisionithaveawidevarietyofapplicationItcanbeusedtoanalyzethewatersupplystatusofcucumber111eresultcanimprovetheautomaticirrigationsystemAccordingtomanyresearch，thewatersupplystatusofcucumbercanbeseenfromthe

3、appearanceWealsoverifythispointwiththeexperimentAfterthat，wemakeamodeloftherelationshipbetweenthewatersupplyandcucumberappearance。Weanalyzethecoloreigenvalueofthecucumberleafandthewatercontentinthesoil1nheresultshowsthat

4、theyarchighlycorrectiveandreachtoaconfidencelevelHereisourresearch(1)11IisthesismakeswatercontrolledcucumbergrowthtestingreenhouseandcollecttheleafpictureundernaturalrayconditionSomeresearchillustratethatthecucumbercould

5、beconsideredaslackofwaterwhenthesoilmoisturebelow90％Sotheamountofwaterinthistestisdesignedto4levels：80％，70％，60％and50％neothersupplementsareincommonmethodncimagecollectionisperformedwithCCDACl200whichismanufacturedbyJiaHen

6、gWechosethethirdleaffromthetopasthesample(2)T1Icthresholdsegmentationmethodandcdgcdetectionsegmentationmethodforstillimagearcdeeplyresearchedinthisthesis，andseveralexperimentsarerealizedAccordingtotheresultofexperimentth

7、estatusofwatersupplyofcucumbercouldbeanalyzedfromtheimage(3)11listhesisdesignedandrealizedaopenhardwaresystembasedonDSPtoapplythisnewimageprocessingandcontr01ThissystemusedTMS320DM642tocomputethedigitalimage，andusedFPGAt

8、ocontrolthesystemscheduleItachievesthepurposetoanalyzethewatersupplystatusofcucumberTMS320DM642hasHarvardbusstructureanditprovidespipeliningprocessing(4)AccordingtothehardwarestructureofTMS320DM“2，Weoptimizedthesoftwarea

9、ndtheprocessmethodteducethetimeonprocessingandtoincreasethetestaccuratenessAftertheoptimization，thesystemcanworkinarealtimeenvironment111ereorganizationrateis94％、96％、100％和98％comparewiththesampleof50％80％Keywords：DSP；soilm