在室内工作的机器控制，由Leica Geosystems的两个总站指导亚博5分钟快三

Author & Photographer: Arne Forsell

Impressive…very impressive…!

当您看到从森林后面涌现出巨大的建筑时，这是进入您脑海的第一个单词。瑞典批发公司达加布（Dagab）在斯德哥尔摩（Stockholm）西北50公里的贝尔斯塔（Bålsta）市的新杂货中心将成为北欧最大的建筑之一。该建筑物的长度为575 m，地板面积为100,000平方米，相当于15个足球场，天花板高度为15米，储藏室的温度区域不同，建筑物是由强烈的聚焦环境建造的。

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

The construction company卡纳纳登is 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!

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.

使用Skid转向进行精细分级

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.

丹尼斯在混凝土基础之间的狭窄空间中安全地操纵了某些人称之为奇怪而难以描述的机器的混合体。机器下方的刀片将填充材料拖动到用于后续楼层基础的最后一层中，并以坚定的精度将其放置。丹尼斯（Dennis）证明，在机器内的操纵杆后面，他是一位真正的艺术家。

Dennis is assisted by his machine control solution from Leica Geosystems.

- 丹尼斯说，我们在所有机器上都从莉卡（Leica Geosystems）拥有机器控制。
- 我们只想使用最好的工作，因此我们在MCP80面板上使用MC1软件。我们的客户和我们对此感到非常满意，我不想其他系统！

The work under the massive roof and between the obstructing piles has created new challenges for Dennis and the handling of his machine.

- 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轻松从双TPS切换到双激光解决方案

- 但这没关系。结果的高度几乎相同。我以5毫米的边距为5mm，上下行驶，没有任何问题。我可以自己做一切！我放置了总站，自己做工作亚博5分钟快三！当我工作亚博5分钟快三时，总站给我带来了安全感。只要模型正确，就可以正确执行作业。

Dennis Larsson claims that he sometimes finds it hard to learn new technology, but he immediately realises:

- 我已经学会了使用GPS，当您看到高度时，工作变得更加有趣。可能是年轻人，他们一直在机器上使用GPS，没有像我一样的快乐，但是我从事这项业务已经很长时间了……学习MC1绝对不是问题！

Machine control is used for high precision excavation

In another part of the giant warehouse, Simon Sundkvist works in his Volvo EW160E signed Granlunds Grävmaskiner. The company started in 2001 when Andreas Granlund bought an excavator for his one-person company and stating that “the rest is history” is a bit of a cliché, but also true underlined by the fact that the company today has 45 employees and machines for construction work, earthmoving, and transportation.

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.

- 我参加了Leica Geosystems提供的GNSS课程，并认为机器控制既酷又有趣，那就是他说并在胡须上大笑。我继续使用它，对其进行了调整，并学到了越来越多的东西，而Leica系统易于使用。

西蒙（Simon）和他的挖掘机几乎像大教堂一样的环境，搭配光滑，明亮的混凝土墙壁，将目光向上驶向天花板的环境几乎造成了全部无线电阴影。在他与地板区域的合作中，西蒙的指导下的两个总站都以坚定的准确性抓住机器上的棱镜，并帮助他以精确的倾斜和正确的高亚博5分钟快三度将水桶放在水桶上。

On one of the short sides of the area that he is working on, he has dug several holes to give room for future installations in the room. Beautiful, sharp-cut edges, holes with millimeter tolerances, and razor-sharp angles are a silent testimony about the accuracy of the machine control solution – when it is performed by a competent machine operator.

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.

- I start every day by positioning the two iCR80 total stations. I did it very thoroughly in the beginning, but that didn’t work. It was too accurate for the machine control solution. Vibrations and even the air pressure level in the machine’s tires were enough to influence the machine control, and it didn’t function. Now, I only use two decimals, and it works a lot better.

西蒙认为,它节省了a lot of time because he now works independently.

- It is a question of hours, he says. And it is nice to work autonomously as well.

他只有在描述他与Leica Geosystems的关系时才受到赞扬。

- 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.

It is an impressive location, and machine control from Leica Geosystems has played an essential role in its construction!