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1、无定向角导线在导线测量中的应用（TheapplicationofundirectedAnglewireinthemeasuringofwire）Abstract:inthispaper,theproblemoftraversemeasurementisdiscussedinthispaper.Keywords:noorientation,rotation,zoomingPreface:Nowurbanconstructionrapiddevelopment,especiallysuchasShanghaiin
2、ternationalmetropolis,high-risebuildingstospringup,thismaymakethecontrolpointsoftheoriginalnolongervisibility,sothatitdidnothavethenecessarytocalculateeachconductorofazimuthorientationAngle,totraverse.Thispaperintroducesamethodtocalculatethetwocontrolpoints
3、.1.ClosedconditionsofsingleundirectedangularconductorsTheessenceofthesingleundirectedangularconductoristhatthesingleechoofthedirectionalAngleisnotobservedatbothends,asshowninfigure1Forasinglewithn-1forfixed-pointastaticAngleofconductor,itsnecessaryobservati
4、onvalueof2(n-1),andtheobservedvalueforn+(n-1),articlenandn-1wiresAngle,sothenumberofredundantobservationforn+(n-1)-2(n-1)=1.DuetotheundeterminedAngleoftheAngle,theredundantobservationconditionisthelengthclosurecondition.2.CalculationideasSinglenoorientation
5、AngleattheendsofthewireorientationAngleobservation,butneedtocalculateeachconductorofazimuthatleastknowaorientationAngle,thisisasingleAngleofnon-directionaltraverseadjustmentdifficultiesofcalculation.Solvewayis:willthefirstwiretheazimuthAngleofhypothesis,hyp
6、othesisazimuthasstartingcoordinateazimuth,usingtheinitialazimuthandtheazimuthAngle,ontheedgeofleadAngleobservationvaluecalculatealllead,calculatedandreuseleadthecoordinatesofobservedvaluecalculation,ontheedgeoftheend.Duetoincorrectorientation(assumption),on
7、theedgeofstartingAngleandwiresandwireandtheinfluenceofobservationalerror,willleadtothecalculationofendpointnotconsistentwiththeactuallevel,toeliminatethecontradiction,canusewirefixededgeABedges(picturedabove)ofknownlengthandazimuthrespectivelyknownasstandar
8、dandorientationofthescaleofthewiretowireforscalingandrotation,sothatthecalculationofendpointisconsistentwiththeactualpoint,inordertoachievethepurposeofasingleAngleofnon-directionaltraverseadjustment.3.
