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Visual testing system for the damaged area detection of wind power plant blade

For the maintenance of wind power turbine blade, we have researched robot platforms and sensor systems. In this paper, we proposed VT (Visual Testing)-based damage detection system based on pan-tilt zoom camera system. VT is a basic but indispensable NDT (Non-Destructive Testing) for wind turbine blade. Additionally, this fixed-type damage detection system can be applied for robot localization on the wind power blade. Our experiments show that the sensor system using pan-tilt zoom camera can detect damage on the blades, localization algorithm is feasible, and the system can be deployed in wind power farm.