Terra Drone has successfully conducted a long-distance power line inspection for Electricity Generating Authority of Thailand and a power energy distributor in Poland and completed 12km power line mapping in a day, the company announced on 14 February.
The mission was carried out using a fixed wing RTK UAS equipped with a Sony RX1R II (full-frame 42-Mpix camera). The project aimed to research the distance between power lines and the surrounding vegetation and to create tree-trimming report. The inspection provided high-quality images of power line with about 1cm ground sampling distance and a detailed tree-trimming report.
Several flights with a maximum flight time of one hour per flight have completed a power line inspection with a distance of 50km in total. The company’s in-house 3D power line-recognition algorithm processes the data acquired from the flights, which is difficult to achieve with normal images, and measures the distance of obstacles to the power lines.
The acquired 3D mapping data and a detailed report will allow infrastructure inspection and management to be more accurate compared to the conventional visual inspection done by helicopter.
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