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1、激光点云的多功能风洞施工量测与分析郑渊茂何原荣余建伟厦门理工学院计算机与信息工程学院中国科学院城ffi中山大学地理科学与规划学院针对传统皮尺测绘、全站仪在结构复杂的多功能风洞中存在采集作业难、数据精度低、信息不完整等局限性,提出基于高精度、高密度的点云数据开展对风洞施工量测的研宄。通过对点云进行预处理及算法的运用,解决风洞数据获取难、信息不完整瓶颈,实现施工量测数据的有效获取及分析。基于点云预处理数据,可获取风洞的二维线划图、立而图、三维信息模型及统计分析等成果;基于点云数据运用算法,能够快速、淮确地对风洞内墙面的平整
2、度提取分析,判断施工是否符合要求,这是传统测绘方法无法获取的,验证该技术方法在多功能风洞测量的优越性和必要性。应用结果表明,地面三维激光扫描技术对该风洞的施工量测及建筑信息提取均优于传统方法,成效明显。关键词:激光点云;多功能风洞;施工量测;::维线划图;平整度分析;郑渊茂(1991一),男,福建漳州人,研宄生,主要研宄方向为三维激光扫描技术及应用。E-mail:zhengyuanmao@yeah.net何原荣副教授E-mail:heyuanrong@126.com2017-01-12基金:W家自然科学基金面上项目(4
3、1574011)Constructionmeasurementandanalysisofmulti-functionalpneumaticbasedonthelaserscannedpointclouddataZHENGYuanmaoHEYuanrongYUJianweiCollegeofComputerandInformationEngineering,XiamenUniversityofTeachnology;CollegeofGeographyandPlanning,SunYat-senUniversity;Ab
4、stract:Accordingtothetraditionaltapesurveying,totalstationarecollectingoperationinmultifunctionalwindtunnelstructureinthecomplexdifficult,lowdataprecision,incompleteinformationandotherlimitations,theresearchisproposedinthispaper,whichcarriedoutconstructionmeasur
5、ementofwindtunnelbasedonthepointclouddataofhighprecisionandhighdensity.Bythestudyofpretreatmentandtheuseofalgorithmbasedonpointcloud,whichsolvethewindtunneldataacquisition,incompleteinformationbottlenecks,andachievetheeffectivecapturedataandanalysisofthewindtunn
6、elconstruction.Theresultshadacquiredbasedonpointclouddatapreprocessing,suchas,multifunctionalwindtunnel2Dlinerowfigure,elevation,3Dinformationmodelandstatisticalanalysis.Inaddition,multi-functionwindtunnelwallflatnesscanbeextractedandanalyzedquicklyandaccurately
7、byapplicationalgorithmbasedonthebasedonpointclouddata,whichisunavailablebytraditionalmethodofsurveyingandmapping,andverifythatthetechnicalmethodsinthesuperiorityandnecessityofmultifunctionalwindtunnelmeasurement.Applicationshowthattheterrestriallaserscanningtech
8、nologyissuperiortotraditionalmethodsinthewindtunnelconstructionandconstructioninformationextractionwithexcellentresults.Keyword:laserpoint-cloud;multifunctionalwindtu