Drone and photogrammetry
Elevation readings and distance measurements.
Accurate topography of large areas
Drone topography allows to carry out very precise elevation readings and distance measurements. It is used to map very large or hard-to-reach areas quickly and safely.
Drone topography methodology
Drone topography : speed, safety and precision
Mapping of multiple sectors
Drone topography offers great speed of action and maximum safety. It allows to map very large, difficult to access or dangerous sectors without risk.
Data acquisition is done by flying over the area to be mapped and taking numerous shots by the drone. The aircraft is equipped with a GPS RTK with a centimetric accuracy.
This references each point of an image in relation to one or more targets, previously installed on fixed points whose GPS coordinates are known.
Post-processing and extraction of topographic data
Our expertise allows us to extract a very precise topographic plan, including side points and contour lines.If necessary, a georeferenced orthophotograph is superimposed to add an aerial visual.
We can also produce a digital terrain model or DTM which is a 3D modeling of the terrain. It is then possible to easily establish topographic profiles or perform cubature calculations.
Application of drone topography
Concrete applications of drone topography
- 5To establish detailed maps, including precise altimetric data, to study the location of buildings or the integration of large-scale developments into the relief: water reservoir, bridge, road, etc.
- 5To evaluate the costs of earthworks for large-scale projects very precisely
- 5To carry out reliable calculations for the evacuation of cuttings or the needs for backfill materials