Working indoor with machine control guided by two total stations from Leica Geosystems

作者和摄影师：Arne Forsell

令人印象深刻…非常令人印象深刻…！

This is the first word that enters your mind when you see the enormous building emerging from behind the forest. The Swedish wholesale company Dagab’s new logistic centre for groceries in the city of Bålsta 50 kilometers northwest of Stockholm, will become one of North Europe’s largest buildings. With a length of 575 m and a floor area of 100,000 m2, which is the equivalent of 15 football stadiums and a ceiling height of 15 meters, storage rooms with different temperature zones, the building is constructed with a strong focus environment.

Dagab can close down six existing facilities and move their activities to Bålsta when the project is completed in 2023.

Using machine control for creating one of North of Europe’s largest buildings

建筑公司Kanonaden负责土方工程 - 一个涉及地面稳定和堆积的项目。卡纳纳登（Kanonaden）收集了分包商的良好发条，以确保工作流程的平稳执行。这些必不可少的，尖锐和独特的发条齿轮是丹尼斯·拉尔森（Dennis Larsson）和西蒙·桑德克维斯（Simon Sundkvist）。丹尼斯（Dennis）驾驶打滑的转向机，并在其中一侧的一侧钉住钉子的森林中的最后一层。33岁的丹尼斯（Dennis）是家族拥有的SannaGrävAB中的第三代。他的绿色安全背心和黑色T恤表明他为SannaGräv工作 - 如果有人怀疑！

Soil sanitation, sewage systems, surface geothermal heat and even archaeological excavations, adjustment of asphalt and concrete are some of the activities that the company has focused on since the beginning of 1973. The customers are mainly larger companies in the area of Mälardalen. The machine fleet includes, besides the skid steer, tire tractors, excavators, and dumpers.

Using skid steer for fine grading

Dennis' career in the heavy construction industry started with a summer job at the age of 13, so it is a very experienced machine operator that operates the CAT299D2 for fine grading of the final surface layer of the future warehouse.

This hybrid of a machine that some people would call strange and find difficult to describe is maneuvered safely by Dennis in the narrow spaces between the concrete foundations. The blade underneath the machine drags the filling material that is transformed into the final layer used for the foundation for the subsequent floor and deposits it with unfailing precision. Dennis demonstrates that behind the joysticks inside the machine, he is a true artist.

丹尼斯（Dennis）得到了Leica Geosystems的机器控制解决方案的帮助。

- We have machine control from Leica Geosystems on all of our machines, says Dennis.
- We only want to work with the best, so we use the MC1 software on the MCP80 panel. Our customers and we are very satisfied with it, and I wouldn’t want any other system!

在巨大的屋顶下以及障碍物堆之间的工作为丹尼斯和他的机器处理带来了新的挑战。

- When I work under a roof, it is advantageous to use dual TPS because the surface has so many different heights, and it is essential to know exactly what the height differences are. Thanks to the two iCR80 total stations, I never have to think about moving the machine because they track the machine all the time. That makes a big difference compared to using just one TPS and cross slope function. I can’t use the total station all the time because of all the blocking things. Then I switch to the laser solution instead, he says.

Dennis switches easily from dual TPS to a dual laser solution

- But it doesn’t matter. The result is almost the same as long as the height is constant. I drive with a margin of 5mm, up or down, without any problems. I can do everything myself! I place the total stations and do the job myself! The total stations give me a sense of security, when I work. As long as the model is correct, the job will be performed correctly.

丹尼斯·拉尔森（Dennis Larsson）声称，他有时很难学习新技术，但他立即意识到：

- I have learned to use GPS, and it has become a lot more fun to work when you can see the heights. It might be that younger people, who have always used GPS on their machines, don’t feel the same joy as I do, but I have been in this business for a long time… To learn MC1 has definitely not been a problem!

机器控制用于高精度发掘

在巨型仓库的另一部分中，西蒙·桑德克维斯特（Simon Sundkvist）在他的沃尔沃EW160E中签署了GranlundsGrävmaskiner。该公司始于2001年，当时安德烈亚斯·格兰伦德（Andreas Granlund）为他的单人公司购买了挖掘机，并指出“其余的就是历史”有点陈词滥调，但同样如此强调，如今该公司拥有45名员工和机器的机器建筑工程，越野运输和运输。

Simon Sundkvist worked initially as a truck driver, but his uncle had worked as an excavator operator for about 50 years and inspired him to switch career 8 years ago.

——我花了GNSS徕卡提供的混沌之间and thought that machine control was cool and interesting, and that was that he says and laughs through the beard. I have continued with it, adjusted it a little, and learned more and more, and the Leica systems are easy to use.

The almost cathedral-like environment that Simon and his excavator work in with the smooth, bright concrete walls that lead the gaze upwards towards the ceiling creates almost total radio shadow. In his work with floor area Simon is guided by the two total stations that catch the prisms on his machine with unfailing accuracy and help him place the bucket with the exact tilt and correct height.

在他正在工作的区域的一侧之一上，他挖了几个孔，为房间里的未来安装留出了空间。美丽，锋利的边缘，带有毫米公差的孔和剃须刀角度是关于机器控制解决方案的准确性的无声证词 - 当它由主管机器操作员执行时。

The solution allows Simon to work independently. He rarely needs help from surveying engineers for stake-out, and the job is a lot more efficient and cost-effective.

- 我每天通过将两个ICR80总站放置来开始。亚博5分钟快三我一开始就做得非常彻底，但这没用。对于机器控制解决方案而言，它太准确了。机器轮胎中的振动甚至气压水平也足以影响机器控制，并且无法正常工作。现在，我只使用两个小数，而且效果更好。

Simon thinks that it saves a lot of time because he now works independently.

- 他说，这是一个小时的问题。自主工作也很不错。

He has only praise when it comes to describing his relations with Leica Geosystems.

- If I need something, I have a direct phone number of people at Leica. It works really well!

Surveying manager Jerker Wretman fully trusts the accuracy of the machine control solutions

Jerker Wretman works as surveying manager in the company Kanonaden Mälardalen, which is the department that takes over the project from the mother company Kanonaden. He has been with the company since 2017 and is one of 80 employees. Jerker says that Dagab logistics center is the largest project that the company has worked on until now. Still, he feels safe in the role despite the size of the project and specific challenges with the height differences on the site and the very tight deadlines.

Surveying manager Jerker Wretman

- Having the machine control solution from Leica Geosystems is of great value to us. I trust it fully, and the fact that we don’t need to call for surveying engineers makes the process a lot faster and more efficient. The result is highly accurate regardless of using total stations or lasers.

The Dagab project in Bålsta is a project built for the future. From here, groceries will be delivered to several grocery store chains. The storage space is also built for the handling of e-business in the future distribution of groceries.

这是一个令人印象深刻的位置，Leica Geosystems的机器控制在其构建中发挥了重要作用！