KlauPPK has supplied its high precision drone surveying technology to Strabag for construction services support.
European construction services company Strabag trialled the KlauPPK system deployed on a DJI Inspire 2 UAS with a Klau-calibrated X4s camera. Fourteen control points were placed throughout the 17 hectare test area and surveyed by a ground vehicle. The KlauPPK software was then used to compute the locations in a European geoid model and coordinate system using the available national VRS correction network without running a local base station GPS receiver.
According to the company, the residual errors for all 14 control points partly were in the sub-centimetre area, with a calculated total error of 2.45cm (RSME), which is well beyond the claim of 3cm absolute in X/Y/Z.
Based on this successful trial Strabag has ordered a KlauPPK add-on for an existing DJI-Matrice-M210 copter, and has begun a road construction project with a leased system until the new unit arrives.