The Geoscan Group of Companies provides monitoring with an unmanned aerial vehicle (UAV).

Monitoring with an UAV equals in-situ one and sometimes surpasses it. For instance, when determining the distance between overhead line towers, data inaccuracy with an UAV is less than 10 cm while manual GPS receivers may contain inaccuracy up to 5 m.

Since 2016 the Geoscan Group of Companies has carried out projects on aerial survey of PTL for Russian and foreign companies by using their own UAVs. The whole length of surveyed PTL is more than 20 000 km.

As a result, you receive:


In jpeg format
(resolution is 5 cm/pix and higher)


In kmz format
(accuracy is not lower than 15 cm)

Digital terrain models
Digital terrain models

In tif, kmz formats
(height accuracy is not lower than 16 cm)

Reporting tables with data
Reporting tables
 with data

In xls format

Besides the report and described data, specialized “Sputnik LEP” GIS with uploaded results of the survey is provided.

Sputnik LEP is a convenient instrument to analyse and inspect PTL.


  • Measure dimensions and slack of the wire;
  • Measure the forestry area;
  • Find out the vegetation dangerous to wires;
  • Measure distances with respect to terrain;
  • Measure slops, difference of height, ground distance;
  • Measure the area on digital terrain model (DTM) and digital surface model (DSM);
  • Export the reports as XML file;
  • Render the trees impact zones.
Измерение площадей
Измерение габарита провода
Визуальзация зоны падения деревьев
Визуальзация зоны падения деревьев 2
Поиск растительности угрожающей падением на провода (красные точки)
Определение площади залесенности
Измерение стрелы провеса провода
Измерение расстояний

Application fields:

Prevention of emergency situations (dangerous vegetation, wire slack)
  • Monitor trees and shrubs dangerous to wires
  • Define the compliance of wire slack
  • Model the trees impact zones
Scheduled monitoring
  • Detect irregularities within exclusion zones of HVL
  • Monitor trees and shrubs growth
  • Measure wire clearance to earth
Power lines maintenance (maintenance, lines reengineering)
  • Plan the forest corridors widening
  • Plan ground maintenance
  • Plan power lines reengineering
  • Count the number of trees growing in exclusion zone
  • Measure the trees height and diameter of trunks
  • Zone trees and shrubs by height
  • Value the cut and slash

Projects implemented