1-三维激光扫描技术在建筑物建模测量中的应用

，63883471000。,。。TP274A1004-6429201205-0095-03●2012-08-161197819984710000591SHANXISCIENCEANDTECHNOLOGY2012275。、、、、、、。、、、、、、、、、。。。。。13D。。。。、。。①。②。③。。xyzreflectivity。1xyz。22。、、、、。3。PxyzSXYZaθ95··。3D、3D、。23D33．1。1。2。3。450m。34。34。4。。。45°。。＞100m＜100m。3．2。1。2。＜100m50m。3。。。4。。。。、。4。。1．D．2005．2．J．20103．SHANXISCIENCEANDTECHNOLOGY20122759996··。2、、、。3PLCPLC。、PLC。/PLC。424h。5－PLC。1．PLCJ．2005483－84．2．LM331J．200417276－77．3．M．200234－37．4．J．200620334－36．5．J．20073478－79．6．M．200540－52．7．M．199562－63．8．M.200196－97．PLCControloftheWet－PadVentilationCoolingSystemofGreenhousesLIRenjieABSTRACTThedesigncalculationintheapplicationofspecificagriculturalenvironmentisexplainedindetail．Accordingtotheprinciplesandrequirementsofthewet－padventilationcoolingsystemandwithPLCtheoperationoftheequipmentofthecoolingsystemisdesignedtobemoreenergyefficientandmoreflexibletomeettherequirementsoftheautomaticalarmingandperiodicalcoolingofgreen－housesinunsupervisedsituations．KEYWORDSgreenhousecoolingwet－padventilationcoolingsystemPLCcontrolsystemPLCtemperaturecontrolPLCsimula－tioncontrol96-PLC2012275Applicationof3DLaserScanningTechnologyintheMeasurementofBuildingModelingLIUWeiWANGAijunABSTRACT3Dlaserscanningtechnologyisanewtechnologyinthepresentspatial3Dmodelingandiswidelyusedinvariousfields．Thepaperproposestheapplicationmethodofthetechnologyintheconstructionofbuildingmodelingandbasedondifferenttypesofbuildingsstudiesthespecificmeasuringplansandanalyzesthecorrespondingparameterconfiguration．Thewholeprocessfromdataobtain－ingtomodelingisalsostudiedbasedonthebasicprinciplesof3Dlaserscanners．KEYWORDS3Dlaserscanningtechnology3Dmodelingpointcloud99··