激光扫描旅行

As the world population grows and global changes in building and infrastructure construction become more rapid, our need to document this growth and change increases. Referred to as wearable reality capture sensor systems, this new concept is shaping how measurement professionals come to understand and shape the world among them. The Leica Pegasus:Backpack was invented as part of this generation of new wearable reality capture sensor systems in response to the growing global changes. The Prisma Group was the first company to utilise the Pegasus:Backpack in its recent infrastructure project.

Based in the Netherlands, the Prisma Group consists of three companies: Prisma Meten, Prisma Geocensus and Prisma Van Steenis. The company has a variety of specialities including survey (rail, infrastructure, utility), industry (offshore and onshore), GIS, hydrography, geodetic measurements, 3D laser scanning, monitoring and mobile mapping.

The Prisma Group has always been a brand advocate of Leica Geosystems, relying on the quality products that generate quality services. One of the Prisma Group’s goals is to develop the international market. With rapid progress in the field of 3D laser scanning, the Prisma Group was keen to work closely with Leica Geosystems to achieve its goal and to become No. 1 in the field of scanning.

Concentrating on scanning rails
通过合作伙伴关系，Prisma van Steenis是荷兰的第一位3D专家，他与Pegasus：Pegasus：Backpack进行了3D扫描，在荷兰珀尼斯·鹿特丹的铁轨。Prisma van Steenis于2015年11月与Leica Geosystems接触，以帮助这项具有挑战性的项目。该项目是由政府委托为铁路承包商首先核实采购原则的，然后评估存在哪些材料，例如镇流器，卧铺和铁路等材料。Prisma van Steenis被委托进行铁路项目。

The project scope entailed the scanning of the position and height of the rail tracks because the contractor was looking to renew his contract and was keen to impose the new alignment of the railway track. Before any measurements could be taken, there was an initial analysis of the project interfaces and overlaps, and the risks carried out with the scan data and the 360-degree shots. The area that was scanned was a yard with numerous tracks and switches, containing 1.5 kilometres of industrial freight, which was in full use by several carriers and companies. The complete 3D scan will be used for reverse engineering, to help with lay-plans, ballast volumes and profiles. The captured 3D data can be used to build a reliable design of a new railway track layout, delivered as a 3D model, and can also be used for BIM and quantity determination.

Mobility in a difficult space
在该项目期间试图捕获现实数据的同时，在铁路环境中有许多挑战。从低悬挂的电线到火车车周围的狭窄空间，在这种环境中，经典的测量方法可能非常有限。在进行铁路项目的同时，Prisma Van Steenis必须在使用院子的同时进行测量，因此，碰撞的真正风险和个人健康和安全的风险很高。根据法律，风险区域（铁路轨道）不是测量师的可访问区域，通常被禁止进行检查。Prisma Van Steenis需要一个安全，快速，准确的解决方案，以收集该扫描项目所需的点云和360度图片。需要迅速收集调查，以减少成本和交货时间。

The deployment of the Pegasus:Backpack provided numerous advantages over traditional methods for the Prisma Group. The surveyors were a lot safer on the tracks and ran much less risk to their health because they did not have to enter the risk area. In addition to this, the surveyors did not have to perform any measurements during nightfall, which is a hazard in itself with limited visibility causing many hazards of its own. The Pegasus:Backpack was the perfect solution. Distances could be measured without entering dangerous areas with maximum effect. With one measurement from the Pegasus:Backpack, the surveyor was provided with the correct, current and complete information on the same day. The quality of the measurements from the Pegasus:Backpack are highly accurate and best in class.

该项目的结果与传统的地面测量进行了比较，该测量需要几天才能完成，而Pegasus：背包的结果令人印象深刻。背包扫描与数字测量之间的差异约为3厘米，相对结果甚至更好（MM级别）。捕获的3D数据可用于构建新的铁轨轨道布局的可靠设计。较新的技术还允许测量专业人员在三个小时内进行整个调查，通常需要五天。承包商也节省了近50％的成本。扫描的优点是您捕获了整个情况，因此，如有必要，可以在以后的点云中获得任何遗忘的细节。

Prisma总监Klaas debob综合app赌博 Weerd说：“使用可穿戴现实的捕获使我们能够实现与传统测量技术相比的许多好处。”“有了Leica Pegasus：背包，可以到达铁路场的每个地方。我们也不必实施额外的安全措施，因为我们不需要进入高风险领域：我们可以简单地从安全距离捕获数据。最后，由于无错误的数据获取，我们在基线调查中看到了大量节省的时间，这将使我们能够准确监视将来设计的任何更改。”

由Natalie Binder撰写