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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004 
AEROTOPOL CONTROL — AERIAL INSPECTION WORK 
  
Helicopters are frequently used for the control of power lines, 
pipelines and other sensitive objects. Not only the control 
also first repairing from helicopters on the power line are 
undertaken, where exact navigation has to take place. 
This application is the most near to classical GIS but with 
even simplified and easy to use menus. GPS is used for 
precise navigation and vector data capturing with predefined 
database fields are base for the data collection. Special 
features like length-splitting, intersection and others are used 
for this work. Especially for pipelines, which are under the 
soil, navigation is very important to detect dangerous 
activities near the pipeline. In Germany already Gas-pipelines 
are controlled by such a system. 
Electric power lines easily can be seen, but often several lines 
are going parallel and here an exact navigation with 1 m 
accuracy is needed do detect problems on the correct line. 
One big advantage of the application is the possibility, to 
update the already collected data. More less automatically the 
existing database can be opened if such an inspection-point is 
reached. By this way the history can be observed which gives 
a good information about the problem. 
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Figure 8: photo of a helicopter of the company Rotorflug 
GmbH during an inspection of powerlines, already 
operation with an Aerologger system 
Figure 9: Main screen of the navigation and 
controlling 
system 
AeroTopoL Control 
while inspecting a gas-pipeline