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

作者和摄影师：Arne Forsell

感人的…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.

达加布（Dagab）可以关闭现有的六个设施，并在2023年完成该项目时将其活动转移到Bålsta。

使用机器控制来创建欧洲最大建筑物的北部之一

建筑公司Kanonadenis responsible for the earthmoving works – a project that involves ground stabilisation and piling. Kanonaden has gathered a well-oiled clockwork of subcontractors to ensure smooth and timely execution of the workflow. Two of these indispensable, sharp, and distinct gears of the clockwork are Dennis Larsson and Simon Sundkvist. Dennis drives a skid steer machine and levels the final layer in a forest of pegs on one side of one of the storage rooms. 33-year old Dennis works as the third generation in the family-owned Sanna Gräv AB. His green-yellow safety vest and his black T-shirt reveal that he works for Sanna Gräv – if anybody should ever doubt that!

自1973年初以来，该公司一直关注的土壤卫生，污水系统，地表地热甚至考古发掘，沥青和混凝土的调整是该公司所关注的一些活动。客户主要是Mälardalen地区的较大公司。机器舰队还包括防滑转向，轮胎拖拉机，挖掘机和卸货器。

Using skid steer for fine grading

丹尼斯（Dennis）在重型建筑行业的职业生涯始于13岁的夏季工作，因此，这是一家经验丰富的机器运营商，经营CAT299D2，用于未来仓库的最终表面层的精细分级。

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。

西蒙·桑德克维斯特（Simon Sundkvist）最初是一名卡车司机，但他的叔叔一直担任挖掘机操作员已有50年的时间，并启发了他8年前转变职业生涯。

- I took a GNSS course offered by Leica Geosystems 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。bob apple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.

- 如果我需要一些东西，我在莱卡（Leica）有一个直接的电话号码。它真的很好！

调查经理Jerker Wretman完全信任机器控制解决方案的准确性

海关检查员Wretman是测量经理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！