自动封皮检测系统 毕业论文外文翻译

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1、自动封皮检测系统AutomaticenvelopemeasuringsystemABSTRACTAsystemforautomaticallymeasuringaclearanceenvelopeaboutapathoftravelinaspecificembodimentincludesalaserandarotatingreflectormountedonamovingvehicleforradiallyscanningtheregionaroundthepathoftravelinadirectiongenerallyperpend

2、iculartothepathoftravel.Atelevisioncameraismountedonthevehicleandisresponsivetolightfromthelaserthathasbeenreflectedbyobjectslocatedwithintheviewingfieldofthecamera.Thetelevisioncameraisradiallyscannedandprovidesanalogvideosignalsrepresentativeoftheradialdistancesbetweent

3、hereflectorandthescannedobjects.Ananalogvideotaperecorderisutilizedtorecordonvideotapethedistancerepresentativevideosignalstogetherwithbinarycodesoridentificationnumbersidentifyingthecameraradialscanninginformation.Thevideotapemaybeplayedatacentralorhomeofficewherethedist

4、ancerepresentativeanalogvideosignalsmaybeconvertedtodigitalcomputercompatiblebinaryformforsuitableprocessingandstoringbythecomputer.AUTOMATICENVELOPEMEASURINGSYSTEMBACKGROUNDOFTHEINVENTIONA.FieldoftheInventionThepresentinventiongenerallyrelatestomeasuringsystemsand,morepa

5、rticularly,tosystemsfordetermininganenvelope,suchasaclearanceormaximumcargoenvelope,aboutapathoftravel,forexample,asectionofrailroadtracks.B.DescriptionofthePriorArtAneedexistsforrailroadstodeterminethemaximumcargosizethatmaybetransportedonarailroadcaralongasectionofrailr

6、oadtrackoralongaspecificrailroadroute.Thisneedparticularlyexistswhenitisdesiredtotransportanoversizeloadonarailroadcar.Theclearanceormaximumcargoenvelopeabouttherailroadtrackoveraparticularsectionoralonganentireroutemustbeknownbeforeanoversizeloadcanbeshippedwithoutfearof

7、damage.Inthepast,efficient,inexpensiveandrapidsystemshavenotbeenavailablefordeterminingclearanceormaximumcargoenvelopesaboutsectionsofrailroadtracks.TwopriorartdevicesorsystemsaredescribedinU.S.Pat.Nos.3,168,023(Harmonyand3,705,772:(Andreas).ThedevicedescribedintheHarmonp

8、atentutilizesahighpressurearclampmountedonarailroadvehicleforprojectingaplaneoflightradiallyalon