The combination of surveying and machine control technology helps Ängö Entreprenad to be on time, on specs and on budget

作者：Per Norell

Ängö Entreprenad AB is a Swedish company specialized in earthworks for housing development, plumbing and drainage for residential areas. The company was founded back in the 1980’s by Dan Johansson. Today, the company employs approximately 25 people and a handful of independent contractors.

We meet the crew on a sunny Wednesday in September on a job site close to Gothenburg, Sweden. Five people work here full time on preparing the construction of four semi-detached houses. The project was started in the spring of 2020 and must be finished by autumn 2021.

“这在多种方面都充满挑战”。explains Mikael Persson who works as surveyor on the project.

地形是山区的，狭窄，位于现有住宅区的中间，但直到现在，一切都按照计划进行。我们有好人，我们的机器配备了最新的机器控制技术，Leica MCP80控制面板和MC1软件。我们还拥有Leica GeoSystems的POL，ICG70 T GNSS Rovers和CC80平板电脑，使我们能够连续进行销售，以便我们的挖掘机操作员一直都知道该怎么做，这要归功于机器控制上的实时可用信息控制板。

Staking out much faster and safer

Ängö Entreprenad started with measuring and stake-out in 2009, but it was not before 2014 when the company truly understood and experienced all of the benefits of digitalisation. Today, they have six of their excavators equipped with machine control solutions from Leica Geosystems and two surveying poles with iCG70 T GNSS rovers and iCON CC80 field tablets. This allows the company to perform measurements themselves in addition to the surveying services they currently outsource.

“We purchased the new iCG70 T rover and CC80 field tablet in 2009. Before that, we used the GS14 GNSS smart antenna and CS35 tablet controller from Leica Geosystems",explains Persson.“新模型iCG70 T,倾斜补偿a major improvement for me, who only works with measuring. I get a perfectly precise measurement without even having to hold the pole straight. This GNSS roversolution is very easy to use, and I can stake out much faster and safer, when I don’t have to hold the pole vertical at the exact point. It’s enough that the tip of the two-meter long carbon pole is placed at the measuring point, saving us a lot of climbing”.

Sharing real-time data with the entire team

All the data that Persson measures with his equipment is shared directly with the machine operators via Leica ConX, a cloud-based collaboration platform, as well as with his colleague that works with the other GNSS rover.

This gives a very good overview and transparency of the construction site and what needs to be done and where, as Persson and his colleague supplement each other depending on who is closest to the actual location.

“我实际上不是数据专家，但是Leica Geosystems的解决方案是如此准确，合乎逻辑和用户友好，以至于我很容易学习如何使用它们。”said Persson.“Our surveying equipment communicates directly with the machine control solutions through ConX, as well as, we, who are responsible for the measurement can also communicate with each other through the cloud-based services. In addition, Leica Geosystems offers a platform called ‘myWorld’ that gives a really good overview of all the products that we have, when they need service and the subscriptions that are available. It sounds more complicated that it is,”assures Persson. “If there any questions, Leica Geosystems offers excellent support.”

通过机器控制独立工作，更有效

One of the excavators on site is a Volvo ECR235EL equipped with the latest technology from Leica Geosystems. The control panel mounted on the excavator is the MCP80 where the one-for-all MC1 software is running. Henrik Wirkstrøm is in charge of the excavators, and he has worked for Ängö Entreprenad for five years.

“I have been driving excavators for approximately 15 years, but I only came into contact with machine control five years ago, when I started here,”says Wirkstrøm.“通常，机器控制使我能够更加独立地工作，从而使我更加高效。我可以在网站上四处走动而无需等待利益，导致停机时间很少。我真的很喜欢旧的挖掘机系统，但是新的解决方案更有效。”

Wirkstrøm还将继续与倾斜旋转器传感器的直接通信以及面板的用户界面的设计。

“The biggest difference is that MC1 now communicates with the sensor for tilt rotator, which is a great advantage because I use the tilt rotator 99% of the time. It’s also nice that the panel is bigger. It’s easier to see and press the right button. What is most important for me is that the remote support from Leica Geosystems works well and they are always there if we run into any issues,”concludes Wirkstrøm.

Hexagon’s Heavy Construction portfolio, including Leica Geosystems, offers several tools that will increase the productivity of your team, make your construction site, communication and workflows more transparent and seamlessly integrated. With the combination of the right surveying tools, such as the Leica iCON iCG70 T GNSS rover, the multipurpose Leica MC1 3D machine control solution and with the cloud-based collaboration platform, Leica ConX, you are able to work more efficient, accurate thus saving time, costs and extra climbing.