Using a drone-mounted polarimetric camera, the authors report 91.5% and 96.7% success rates for detecting heliostat mirror edges in sky-vs-sky and ground-vs-ground scenes, respectively, where visible cameras struggle.
Commonly, a CSP field consists of one or more central towers surrounded by hundreds to over 100,000 heliostats (e.g., the Ivanpah Solar Power Facility)
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Heliostat Optical Error Inspection with Polarimetric Imaging Drone
Using a drone-mounted polarimetric camera, the authors report 91.5% and 96.7% success rates for detecting heliostat mirror edges in sky-vs-sky and ground-vs-ground scenes, respectively, where visible cameras struggle.