使用Riegl VMX-250移动激光扫描系统进行精确的长隧道测量(中文6000字,英文4200字,英文PDF)
摘要
自2010年7月以来, 我们公司一直在不同的场景中使用 RIEGL VMX-250, 尤其是在与数据采集效率相关的情况下。在本演示中, 我们将介绍一个长隧道测量项目。
西班牙拥有欧洲最长的高速铁路网络。最近, 修建了两条25公里长的平行隧道, 西班牙当局要求进行准确的三维调查。Artescan 使用 RIEGL VMX-250 完成了这项调查。集成的 INS-GNSS 是为1分钟的全球定位系统故障指定的;然而, 在这种情况下, 每个调查项目都是在移动接收机中总 GPS 停机约1小时的情况下实现的。通过结合在隧道内获得的外部 GPS 定位、INS 和里程表测量仪, 实现了2厘米的绝对精度。对于轨迹调整, RiProcess 功能强大的工具被成功地使用。
关键词: 移动激光扫描, 长隧道测量
Precise Long Tunnel Survey using the Riegl VMX-250 Mobile Laser Scanning System
ABSTRACT
Our company has been using the RIEGL VMX-250 since July 2010 in diverse scenarios, especially where data acquisition productivity is pertinent. In this presentation, we will be describing a long tunnel survey project.
Spain has the longest high speed rail network in Europe. Recently, two parallel 25 km long tunnels were built and an accurate 3D survey was demanded by the Spanish authorities.Artescan accomplished this survey using the RIEGL VMX-250. The integrated INS-GNSS is specified for 1 minute GPS outages; however, in this case, each survey project was realized with approximately 1 hour of total GPS outage in the mobile receiver. An absolute accuracy of 2 cm was achieved by using a combination of well acquired exterior GPS positioning, INS and odometer measures inside the tunnel and use of control points. For trajectory adjustment, RiProcess powerful tools were successfully used.
KEYWORDS: mobile laser scanning, long tunnel survey
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