基于历史建筑修缮与保护需求的地面三维激光扫描仪点距精度实验分析  

Experimental Analysis of Point Distance Accuracy of Terrestrial 3D Laser Scanner Based on the Need for Repair and Protection of Historical Buildings

作　　者：王莎 孙建刚 吴育建 WANG Sha;SUN Jiangang;WU Yujian(School of Civil Engineering,Dalian Minzu University,Dalian 116600,China;College of Transportation Engineering,Dalian Maritime University,Dalian 116031,China)

机构地区：[1]大连民族大学土木工程学院,辽宁大连116600 [2]大连海事大学交通运输工程学院,辽宁大连116031

出　　处：《测绘与空间地理信息》2024年第6期221-224,共4页Geomatics & Spatial Information Technology

摘　　要：为研究地面激光扫描技术对历史建筑修缮与保护的实用意义,满足对历史建筑修缮与保护的需要,本文采用Focus3D X330地面激光扫描仪(Terrestrial Laser Scanning,TLS)对扫描距离、水平入射角2个影响因素进行点距精度实验分析,以扫描仪内外符合精度作为站点布设依据,寻求扫描仪的最佳数据区间,得到符合精度要求的高质量测量数据。实验结果表明,扫描距离在5—15 m内,内外符合精度中误差均不超过4 mm,超过15 m后内外符合精度中误差急剧上升且波动较大;水平入射角为75°—90°时,内外符合精度中误差均不超过2 mm,在15°时中误差出现最大值且波动大。上述结果可为历史建筑的修缮与保护所需的数据采集提供参考依据。In order to study the practical significance of terrestrial laser scanning technology for the repair and protection of historical buildings,and to meet the needs of the repair and protection of historical buildings,this paper uses the Focus3D X330 terrestrial laser scanner(TLS)to measure the scanning distance and horizontal incident angle.The experimental analysis of point distance accuracy is carried out on these influencing factors,and the internal and external coincidence accuracy of the scanner is used as the basis for site layout to seek the best data interval of the scanner,and obtain high-quality measurement data that meets the accuracy requirements.The experimental results show that when the scanning distance is within 5—15 m,the error of the internal and external coincidence accuracy is not more than 4 mm.After more than 15 m,the error of the internal and external coincidence accuracy increases sharply and fluctuates greatly;when the horizontal incident angle is 75°—90°,the the error of the internal and external coincidence accuracy is not more than 2 mm,and the maximum error occurs at 15°and the fluctuation is large.The above results can provide a reference for data collection required for the restoration and protection of historical buildings.

关 键 词：历史建筑 地面激光扫描仪(TLS) 点距精度 扫描距离 水平入射角 内外符合精度 

分 类 号：P208[天文地球—地图制图学与地理信息工程]