道路少行驶: Innovative Digitisation of a Mountain Road with the Leica Pegasus:Two Ultimate

Raphael Goudard, Business Manager for Mobile Mapping solutions

德国伯奇特斯加德纳（Berchtesgadener Land）的高山路（Alpine Roads）提供了世界上一些最令人叹为观止的景色。作为巴伐利亚东南角的旅游区域的门户，对于当地经济来说，道路保持良好状态至关重要。对此的责任属于Traunstein国家建筑管理局（TSBA）。TSBA除了包括数百公里的联邦和州道路，步行和骑自行车道，桥梁，支撑结构和隧道的网络外，还管理着高山道路。TSBA是使用数字方法的先驱，希望创建该领域的数字记录，以作为计划建筑工作的基础。当局问ingGeovision, surveying and geospatial data management experts, to survey a 3.2 km stretch. After exploring options,ingGeovisionused a Leica Geosystems mobile mapping solution to digitally capture the road and its retaining walls. The project was the first time that mobile mapping had been applied to this type of challenge.

挑战数据捕获的物理约束

在某些地方有23％的坡度，并散落到下面的山谷中，伯奇德纳纳（Berchtesgadener Land）的道路并不容易进行调查。由于它们建在陡峭的茂密的地形上，因此很难进入挡土墙的两侧。由于海拔和偏远度，几乎整个距离的GNSS信号较弱，尤其是在调查区域中包含的五个隧道中。除了身体上的约束之外，还需要迅速进行调查。这条道路不能长时间封闭或封锁，以使旅游巴士的路线免费。然而，由于从调查中获得的数据被用作计划建筑工作的基础，因此需要以最大的准确性来记录道路和墙壁。

移动映射符合所有项目评估标准

ingGeovision团队在整体测量方面经验丰富。他们一直是1000多个成功的激光扫描项目中建筑物，植物和其他基础设施的数字化合作伙伴。对于Berchtesgadener Land项目，他们考虑了各种方法：通过无人机进行激光扫描，测试表测量，静态扫描和移动映射。评估标准包括在现场花费的时间，数据的准确性，检测挡土墙的能力以及高分辨率的道路状况。最后，该方法是否可以用于收集照片文档和一个操作中的云数据。

无人机被排除在外，因为它只能传递照片，转速测量，因为它无法传递照片或点云数据。静态扫描将花费太长时间，无法在许多地方放在墙壁外面。尽管在这种情况下未经测试，但移动映射能够按照每个条件提供。移动映射系统结合了复杂的硬件传感器和软件技术，以将激光扫描扫描静态三脚架，让团队乘坐汽车捕获准确的3D数据。

Unconventional attachment of the scanner solved the site access problem

ingGeovisionput together a scanning solution using the Leica Pegasus Ultimate II mobile mapping platform. Ingeniously, in order to capture both sides of the retaining walls the Leica Pegasus Ultimate II was not only mounted to the roof of a car, but also to the bucket of an excavator. This allowed the scanner to hang over the edge of the wall and capture the exterior, with no risk to human safety. Measurement of control points was done by a tachymeter TS16 and the tunnels were additionally scanned using a static RTC 360, in order to look for a historical drainage system. The data was evaluated using Leica Pegasus Manager, Leica Cyclone and Leica Cyclone 3DR.

交付快速，灵活的扫描

A major benefit of using the mobile mapping solution was the short amount of time on site. It took only half a day for the Leica Pegasus Ultimate II to record the 3.2km of road by car and a further half day to record the difficult sections of retaining wall, when mounted to an excavator. Even during this time, tourist vehicles were still able to use the road, meaning that the inspection had minimum impact on the local economy. Approximately 162 GB of raw data was collected, which resulted in 600 GB of processed data - ultimately delivering the digital terrain model and inventory plans necessary to inform future building work. Meeting TSBA’s requirement for accuracy, the data had an absolute accuracy to within 2 - 3cm.

移动映射的演变：多种用途

TSBA BIM sinc试点建设办公室e 2019. The Authority has managed to bring in a high degree of digitization to the assets under its management, making planning, construction and maintenance more efficient. With this project, complete digitisation of an alpine road was achieved for the first time during a regular build inspection. The willingness ofingGeovision为此目的，TSBA通过移动映射进行创新，为困难和高海拔地形创造了一种新的现实捕获方法。bob综合app赌博可以肯定的是再次使用。

“如今，移动映射是如此高级，也可以用于监视目的。在评估可能的数据捕获解决方案中，Leica Pegasus：两个最终是检测该区域的最快，最准确的解决方案。”Sven Gollub, Project Manager at ing Geovision.