1HighHigh--Speed(70mph)Speed(70mph)RealReal--TimePavementInspectionTimePavementInspectionBugaoXuBugaoXuDepartmentofHumanEcology,CollegeofNaturalSciencesDepartmentofHumanEcology,CollegeofNaturalSciencesCenterforTransportationResearch,CollegeofEngineeringCenterforTransportationResearch,CollegeofEngineering2Problem:PavementneedstobeProblem:PavementneedstobeinspectedformaintenanceandrepairinspectedformaintenanceandrepairVisualinspectionsVisualinspectionsOnfootorslowOnfootorslow--movingvehiclemovingvehicleSubjectiveSubjectiveInterruptpublictrafficInterruptpublictraffic23WhataretheproblemswithWhataretheproblemswithautomatedsystems?automatedsystems?Dataanalysisneedsto:Dataanalysisneedsto:BeperformedinrealtimeBeperformedinrealtimeBereplicableBereplicableMeetPMIS/ASSHTOstandardsMeetPMIS/ASSHTOstandardsSpeed(canyoudriveat70mph?)Speed(canyoudriveat70mph?)DifferenttypesofpavementDifferenttypesofpavementFlexible(asphalt)Flexible(asphalt)Rigid(concrete)Rigid(concrete)Lighting(day,night,fog,clouds)Lighting(day,night,fog,clouds)ManytypesofcracksManytypesofcracks4Solution:digitalimagingtechnologySolution:digitalimagingtechnologyVCrackVCracksystemsystemRealReal--timedataanalysistimedataanalysisHighwayHighway--speed(worksat70mph)speed(worksat70mph)Fullcoverage(nomultiplepaths)Fullcoverage(nomultiplepaths)TxDOTTxDOT’’ssTopInnovationAward(2004)TopInnovationAward(2004)35TechnologyoverviewTechnologyoverviewHighHigh--sensitivitylinescancamerasensitivitylinescancameraHighHigh--speedframegrabberspeedframegrabberGPS:positionandspeedGPS:positionandspeedLEDlinearlightingdeviceLEDlinearlightingdeviceCustomizedimageprocessingsoftwareCustomizedimageprocessingsoftware6BenefitsBenefitsVehicledrivenat(upto)70mphVehicledrivenat(upto)70mphMassivecostsavingsMassivecostsavingsImprovedworkersafety(roadway)Improvedworkersafety(roadway)Highlyreliable,objectivesystemHighlyreliable,objectivesystemSubjectiveinspectionseliminatedSubjectiveinspectionseliminatedDataisreplicableDataisreplicableComprehensivedata(PMISandASSHTO)Comprehensivedata(PMISandASSHTO)47WorksinalllightingconditionsWorksinalllightingconditions(clouds,fog,day,night)(clouds,fog,day,night)8TechnologydifferentiationTechnologydifferentiationProprietaryprocessingalgorithmsProprietaryprocessingalgorithmsRealReal--timeprocessingtimeprocessingEliminatesamplingproblems(100%coverage)Eliminatesamplingproblems(100%coverage)HighwayspeedsHighwayspeedsIdentifiesallcracktypesIdentifiesallcracktypesLEDlinearlightingLEDlinearlightingAllowsconsistentimagingregardlessofdaylightAllowsconsistentimagingregardlessofdaylightEliminatesobjectshadowsEliminatesobjectshadows59LEDlinearlightingLEDlinearlightingHighintensityHighintensityUniformdistributionUniformdistributionLowpowerconsumption(200Wvs.8KW)Lowpowerconsumption(200Wvs.8KW)AmbientlightblockedoutbymatchingfilterAmbientlightblockedoutbymatchingfilterCylindricallensCylindricallensLEDarrayLEDarray10VCrackVCrackproducesaproducesacontinuouscontinuous““crackmapcrackmap””……thatgivesvisualinformationaboutthedatathatgivesvisualinformationaboutthedata611VCrackVCrackdetectsalltypesofcracksdetectsalltypesofcracks(e.g.,alligatorcracks)(e.g.,alligatorcracks)Fatiguecausedbyoverweighttraffic12VCrackVCrackcandetectcrackscandetectcracksevenonveryblackpavementevenonveryblackpavement713VCrackVCrackdetectscracksevenwhendetectscracksevenwhenconcretepavementistinedconcretepavementistined14VCrackVCrackproducesreliableresultsproducesreliableresultsFM1625AlligatorCracking0.501.001.502.002.503.00Distance(miles)020406080100120AlligatorK1-1K1-2K1-3K2-1K2-2K2-3K1:daytimeK2:nightMultiplerunsofonevehicle,R95%Multiplerunsofonevehicle,R95%815VCrackVCrackproducesreproducibleproducesreproduciblePMISandASSHTOresultsPMISandASSHTOresults0204060801001611162126313641460.1MileSegmentTransverseV1V2Multiplevehicles(V1andV2):R93%Multiplevehicles(V1andV2):R93%16WhatdoesHighway360WhatdoesHighway360reallylooklike?reallylooklike?Longitudinal0501001502000.01.02.03.04.05.06.07.08.0360Bridge360360&183overpass917StrongmarketneedforStrongmarketneedforimprovedtechnologyimprovedtechnologyCity,state,andfederalagenciesCity,state,andfederalagenciesPrivateroadwaysPrivateroadwaysAirportsAirportsInternationalmarketsInternationalmarkets18NextstepsNextstepsCurrentstatusCurrentstatusPatentapplicationfiledPatentapplicationfiledCopyrightedsoftwareCopyrightedsoftwareBetaproductBetaproductGovernmentcustomer:TXDOT(8vehicles)Governmentcustomer:TXDOT(8vehicles)CommercializationopportunitiesCommercializationopportunitiesStartStart--upcompanyupcompanyTraditionallicenseTraditionallicenseFollowFollow--upmeeting:upmeeting:Tuesday,June14th,1:00Tuesday,June14th,1:00--2:00pm2:00pm