Sustainably maintain and protect trees using GIS

TyssenKrupp钢铁欧洲AG)和它的前身公司mpanies have been active in their core location of Duisburg for more than 120 years. Together with its subsidiaries, the company supplies a wide range of steel processing sectors. The individual locations, therefore, set benchmarks in terms of environmental impact, but not just in Germany. The company is active in the sustainable preservation of the environment. In this context and due to statutory requirements, two years ago the task was formulated to complete the entire tree population of Duisburg in the company's GIS using a field comparison process and other valuable data for preservation and care.

目的是在公司校园的800公顷（2,000英亩）区域中实现和维持均匀且可见的树木景观。计划每年审查规定的树木伤害评估和适当的树木护理。此外，2014年的毁灭性风暴很明显校园的树木的安全至关重要。数据将用作这些措施的招标基础，并将包括该场所所有绿色空间的更新版本。与铺路区和绿色区域有关的确切数字将提供给适当部门的排水费用，并授予绿色护理措施的合同。对位于工厂场所的大型工业管道系统（包括管道路线和适当的支持号码）的所有支持记录了该公司的GIS。

The right equipment saves time
To perform this task economically and to complete it in a reasonable period of time, it was decided to work with the graphic field book FX Collector made by Frox IT Factory before the start of the project. The hardware platform consists of a Panasonic Toughpad FZ-G1 attached with a Leica Zeno GG03 GNSS SmartAntenna and a Leica CS25 GNSS plus with helix antenna.

用高度精确的Leica Zeno gnss smartantenna鉴定了要记录的对象，并使用众多FX Collector可用的绘图功能组成。另外，使用了混合方法。FX收集器的快速相互作用与Leica Zeno GNSS Smartantenna结合使用。该方法很快提供了位置数据辅助点，然后将其用于在平板电脑上构造难以到达的对象。

所有背景数据（航空照片，网络地图服务，CAD数据）均以FX Collector的地理参考格式存储。因此，检查表面和现有树木，对管支撑的测量以及位置的方向进行了大大简化。因此，可以快速和高质量地创建广泛的数据集。

“ThyssenKrupp Steel Europe AG is totally satisfied with the combination of the FX Collector, Leica CS25 GNSS plus and Leica Zeno GG03 SmartAntenna,” said Klaudius Drass, Dipl.-Ing Geography at ThyssenKrupp Steel Europe AG, and the person responsible for the in-house GIS. “Efficiency was increased by about 30 percent compared to conventional field comparison method.”

High mobility and data storage in the cloud
这是先进ntageous to work with the graphic field book, especially in the densely wooded areas. It’s the most efficient method for allowing continuous on-the-spot visual checks to be made regarding the completeness of the data. The advantage of the system is the high degree of mobility and the fact that the system can be operated without cumbersome field sketches, additional maps or additional equipment.

特别是，Leica CS25 GNSS Plus与螺旋天线结合使用，可靠性，易用性，迁移率和递减精度。在需要更高精确度的所有其他区域中都使用了杆子上的松下pad fz-g1，带有Leica Zeno GG03 Smartantenna。

The project was backed up on site to the cloud daily so preliminary results could be available immediately to office staff. FX Collector's Session feature was used in this context to allow the data to be exported on a daily basis without having to create a new project each day.

The results were provided in digital form. Trees and pipe supports were exported using FX Collector's table-driven interfaces so that they could be read directly into ThyssenKrupp's GIS system. The changed green spaces as well as the new green spaces were replaced or supplemented in GIS.

“The weatherproof CS25 GNSS plus is resistant to rain, wind and dirt. The computer and the antenna were easy to carry throughout the day,” said Drass. “The batteries lasted all day and were fully charged by morning due to the short charging period. The ‘fixed’ solution was achieved extremely ‘quick’ – there was hardly any waiting time.”

Reduction of office work to a minimum
A large portion of the planning preparation was conducted in the field, reducing post-processing in the office to a minimum due to the standardised high quality of recorded data. The office staff was able to import the data quickly and easily into the client's GIS. This further emphasises the efficiency of the entire process.

“The Leica CS25 GNSS plus offers a good platform for the FX Collector. The Leica Zeno GG03 SmartAntenna was connected with the two tablets via Bluetooth. Measuring was done quickly and easily, and a fixed position was returned within a short period,” said Drass. “Shaded areas were processed quickly using measured auxiliary points via GNSS and the numerous design features.”

Written by Johannes Grösbrink