用GNSS漫游者测量点云
Takeaways from JTRS Registered Surveyor on the Leica GS18 I GNSS RTK Rover
Author: Renata Barradas
We measure the point cloud.
这是JTR注册测量师的口号，这是新加坡的一家专业土地测量公司，可提供3D激光扫描，土地调查，空中映射和检查，摄影测量和成像服务。JTRS一直在寻找创新和创新的方法来改善公司提供的测量服务。
是该公司最新的技术飞跃to measure the georeferenced point cloud and points with its brand new tech acquisition – theLeica GS18 iGNSS RTK Rover。
“从单个乐器中实时定位同时捕获图像的能力确实改变了我们进行测量的方式 - 这是一个现实捕获概念，”亚博ag真人规律JTRS的所有者Jimmy Tan解释说。
此外，借助随之而来的倾斜补偿，它有助于获得RTK观察并迅速进行记录，这在夜间工作时像我们必须在机场跑道或MRT高架桥一样有用。我不需要额外的双手来握住手电筒在我平整杆子时发光的泡沫。”
除了测量点云外，GS18我还用功能强大的RTK漫游器授权JTR，结合了快速的RTK初始化，倾斜补偿的测量和视觉定位，这都是一个工具。借助GS18，我添加了他们的投资组合，JTRS能够提供新服务并改善公司的当前服务。
防弹工作流程
JTRS主要使用GS18 I进行公用事业和建筑项目中的控制调查和质量检查。紧密的精度需要从50mm到100mm，对于大多数QC项目，需要40mm。对于每个项目，此通用RTK GNSS Rover的工作流程是：
- 使用GS18 I和Leica Captivatefield software
- 使用办公软件的数据处理Leica Infinity
- 使用以下方式创建可交付成果（要处理图像到点云），Leica JetStream（发布点云）和3D Reshaper（基于点云进行网格建模）。
用棕褐色的话"With the GS18 I, I just need to point the camera onto the subject that I want to capture while walking. For example, in one of my projects, the time taken to survey the trial pit with the GS18 I was no more than five minutes. The time taken to post-process in the office using Infinity software was 30 minutes. I can produce true colourised point clouds, which I can export to orthophotos and also create digital surface models. It is also possible to create hundreds of topo points from the georeferenced images quickly and efficiently."
试验坑中的安全性和速度
Carrying out trial pit or as-built trench surveys can be very challenging. Surveyors usually need to follow the site contractors' workflow and schedule as the trench needs to be backfilled, and the road lane needs to be re-opened as quickly as possible.
When JTRS was tasked with a utility trench documentation, they saw it as an opportunity to put their new GNSS rover into a true test. Besides doing an as-built survey of trial pits and the underground utilities, the GS18 I allowed them to create a 3D point cloud and sequence it into a 3D mesh model.
The freedom of using both the pole tip and Visual Positioning to measure in the field and using simple workflow for processing in the office, pushes the boundary of surveying for JTRS to another level.
质量控制检查调查的信心和准确性
对于一个包括1200个块的3D扫描的建筑物和扫描项目，JTRS与GS18 I一起进行了地理参与式扫描数据的质量检查。。“在我们与HDB（住房开发委员会）的一个项目中，我能够在步行过程中使用视觉定位在步行过程中捕获的积分坐标。使用GS18 I，它很方便，可以快速进行调查，我可以立即获得结果离开网站。
When it was not possible to use the pole tip because it was too close to the building's edge and the RTK signal couldn't initialise we used the Visual Positioning method and walked further away from the building where there is RTK signal. Most of the time, we would use both methods if the site condition enables us to do so,"describes Tan.
柔滑的工作流 +更高质量可交付成果=自信客户
JTRS is now able to work safer and save costs on manpower as the GNSS antenna is operated by only one person. To get ready to use the GS18 I on the field, the team needed no training and just one short introduction on how to process the images in Infinity was required.
"Clients are more confident in the quality of the deliverables. With Infinity, I am able to process the images into true point clouds with accurate georeferencing. With Visual Positioning, I can capture two images per second as I walk, and each image comes with global coordinates from a single source – the GS18 I. It is like flying the drone installed with a GNSS antenna and camera, except we are walking,"sustains Tan.
"Clients are more confident in the quality of the deliverables. With Infinity, I am able to process the images into true point clouds with accurate georeferencing. With Visual Positioning, I can capture two images per second as I walk, and each image comes with global coordinates from a single source – the GS18 I. It is like flying the drone installed with a GNSS antenna and camera, except we are walking,"sustains Tan.
通过衡量点云来打开新的机会
JTRS通过3D激光扫描和摄影测量法专门亚博ag真人规律研究现实捕获。我将GS18添加到公司的座右铭，该座右铭是使用天线，该天线使测量师可以自由，安全地捕获站点，将QC携带几乎所有数据并创建多个可交付成果。
“我们可以将点云进一步发展为3D网格模型 - 这是现实捕获，并且在可视化方面非常有帮助 - 多次比单点，单行或2D绘图好。使用Infi亚博ag真人规律nity，您还可以创建数字表面模型。对于可以在其设计工作中使用这种锡型模型并轻松提取高度和轮廓，水流等的工程师或设计师有益。”谭说。
GS18我不仅在帮助改善JTRS提供的当前服务，还可以帮助公司提供新服务。能够更快地创建多个可交付成果，并减少资源，从而带来了更多的项目机会。
“我们可以将点云进一步发展为3D网格模型 - 这是现实捕获，并且在可视化方面非常有帮助 - 多次比单点，单行或2D绘图好。使用Infi亚博ag真人规律nity，您还可以创建数字表面模型。对于可以在其设计工作中使用这种锡型模型并轻松提取高度和轮廓，水流等的工程师或设计师有益。”谭说。
GS18我不仅在帮助改善JTRS提供的当前服务，还可以帮助公司提供新服务。能够更快地创建多个可交付成果，并减少资源，从而带来了更多的项目机会。
If you want to hear and see more,听我们的网络研讨会与吉米·谭（Jimmy Tan）。
Leica GS18 i
具有视觉定位的多功能，调查级GNSS RTK RTK ROVER。在现场或以后的办公室中，在图像和测量点中捕获该站点。
环境，社会和治理影响：工人安全
工人安全可能是特定调查任务的主要问题。例如，在沟渠中或附近工作可能是危险的：风险包括掉入沟渠，暴露于有毒烟雾中，接触埋藏的服务线，被机械击中等等。任何需要更少的人，现场时间更少的技术都可以确保工人的安全。我是为希望快速捕获环境的测量师设计的。他们稍后可以在办公室中确定要测量和这样做的点，从而节省昂贵且可能有风险的现场时间。
工人安全可能是特定调查任务的主要问题。例如，在战es中或附近工作可能是危险的：风险包括掉入战trench，...