Drone monitoring

With drone surveys we capture large and hard-to-reach zones across their full surface. By comparing periodic flights, we accurately map volume changes, subsidence and erosion — ideal where point measurements fall short.

Area-wide instead of point-by-point

Where a total station measures individual points, a drone delivers millions of measurement points across an entire surface. Using photogrammetry or LiDAR we build a detailed 3D model and orthophoto of the terrain.

• High-resolution orthophotos and digital terrain models
• Volume calculations of stockpiles and earthworks
• Difference models between successive flights
• Visual inspection of roofs, façades and structures

Accurate and repeatable

By surveying ground control points (GCPs) with GNSS and using RTK positioning on the drone, we achieve accuracy down to a few centimetres. Fixed flight plans ensure every campaign is comparable.

Applications

• Quarries and landfills
• Earthworks and cut/fill balance
• Dykes and banks
• Erosion and subsidence monitoring
• Inspection of hard-to-reach structures

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