大范圍液位實(shí)時(shí)跟蹤測(cè)量系統(tǒng).pdf

1、天津大學(xué)碩士學(xué)位論文大范圍液位實(shí)時(shí)跟蹤測(cè)量系統(tǒng)姓名：徐馳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：儀器科學(xué)技術(shù)指導(dǎo)教師：孫長庫201112ABSTRACTInconsiderationoftidemeasuringinstrumentwhosecharacteristicarelargemeasuringscale，highaccuracyandfastermeasuringspeed，wedesignasetofheightmeasuringsyste

2、mbasedondigitalimageprocesstheoryThesystemmainlyincludesvisionmeasurementpart，trackingcontrolpartandtidalsimulationpartthreecomponentsTheexperimentalresultsshowthatthissystemhassuperiorperformanceoverthemeasurementoflarg

3、escalewaterlevelwithgoodrobustnessanditCOHldcompleteameasurementwithhighaccuracyThemainresearchcontentsinclude：1Analysisthecurrentsituationofthemeasuringmethodofliquidlevelathomeandabroad，elaboratingtheresearchbackground

4、andsignificanceofthelargerangeliquidlevelrealtimemeasuringsystemdesignedinthistopic2Completethelargerangeliquidlevelrealtimemeasuringsystemdesigning，throughprocessingtheimageofrulerandwatertubecapturedfromCCDcameratocomp

5、letethetaskofhighaccuracymeasurementThetechnicalindicatorsofthissystemare0～8mmeasuringrange，01mmmeasurementresolutionandlmmmeasurementprecision3Writethecommunicationprogramgettingthemeasuringresultoftheenvironmentsensors

6、includingtemperature—humiditysensorandatmosphericpressuresensorSOwecanmonitorthechangeoftheexperimentenvironment4Designthevisualdetectionpartofthismeasuringsystemandcompletethe3patternrecognitiontasksincludingtheidentifi

7、cationofrulerscribedlineandtheidentificationoftheliquidlevelpositionDuringtherecognitionofrulernumberweusetemplatematchingmethodwithrespecttotherobustnessofalgorithmandstabilityofthemeasuringsystemAstOtheidentificationof

8、rulerscribedlinewemakefulluseofthegrayfeaturesoftheimageandstructurecharacteristicsoftherulerWeusetheedgedetectionoperatortoidentifythepositionofliquidlevel5Inordertorealizethereal—timemeasurementoftheheightofliquidlevel