Lidar data acquisition of power lines
Profile generation, inventory and analysis of spacing to vegetation
In 2012, the Eiffage-Énergie / BSF Swissphoto bidding consortium won the tender by the French RTE (Réseau de transport d'électricité) to carry out an aerial survey over parts of the French high-voltage power line network. This would encompass roughly 2000km of 63kV – 400kV power lines over a corridor width of 70 to 120m.
For this mission an airborne lidar system and a digital medium format camera were simultaneously operated from a helicopter. The acquired data has a point density of more than 20 Pts/m2 while the resolution of the images lies around <10 cm.
The final products are a classified point cloud, a digital terrain- and surface model (DTM/DSM) and a digital orthophoto (DOP). A profile is generated along the cable lines, allowing the measurement and documentation of the safety spacing of the power lines to obstacles.
Services of the consortium:
- Flight planning, mobilisation and flight initialisation
- Laser- and image data capture: oblique and vertical imagery
- Georeferencing and classification of the lidar data
- Generation of a DTM, a DSM and a DOP
- Generation of profiles
- Analysis of spacing to objects
- Quality control
- Technical documentation
Further referencesAll references
Digital oblique images for Cyclomedia
Lidar data and aerial images for Finland
Aerial data acquisition at Shiphol airport
Digital orthophoto Netherlands
Overeenkomst und Schaduwovereenkmomst, Netherlands
National Elevation Model Sweden
Elevation models and orthophotos in Africa
Senegal and Liberia