Wind turbine blade inspection unmanned aerial vehicle based on image recognition and inspection method thereof

Abstract

The invention relates to the field of wind turbine blade inspection, and discloses a wind turbine blade inspection unmanned aerial vehicle based on image recognition and an inspection method thereof.The inspection unmanned aerial vehicle comprises an airborne computer, an optical zoom pan-tilt camera and a wide-angle camera which are installed on an unmanned aerial vehicle body, and the airbornecomputer comprises a flight control unit, an image data processing unit and an optical zoom pan-tilt camera control unit; the image data processing unit is used for calculating an inspection initial position of each wind turbine blade according to the space image of the wind turbine shot by the wide-angle camera; the image data processing unit is used for calculating and processing the image of the wind turbine blade shot by the optical zoom pan-tilt camera, and adjusting the zoom, pitch angle and yaw angle of the optical zoom pan-tilt camera through the optical zoom pan-tilt camera control unit. During inspection, the inspection unmanned aerial vehicle is suspended, and the whole wind turbine blade is shot by changing the zoom, pitch angle and yaw angle of the optical zoom pan-tilt camera.

Description

technical field [0001] The invention relates to the field of inspection of wind turbine blades, in particular to an image recognition-based inspection drone and inspection method for wind turbine blades. Background technique [0002] The blade is the most basic and critical part of the wind turbine, and its good design, reliable quality and superior performance are the decisive factors to ensure the normal and stable operation of the unit. Because the whole is exposed outside and the working conditions are harsh, accidents of blade loss and failure occur from time to time. When a blade failure accident occurs, especially a single-piece fracture accident, the balanced rotation state of the three blades is destroyed, and the generator set vibrates violently instantly; hazard, and may cause the entire unit to burn. [0003] Therefore, it is necessary to conduct regular inspections on the blades, find defects in time, and quickly take effective measures to eliminate or prevent...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the background technology, the present invention provides a wind turbine blade inspection UAV and inspection method based on image recognition. The technical problem to be solved is that when the existing UAV performs inspections on the wind turbine blades It is necessary to fly and shoot at close range on the surface of the blade, which poses a safety hazard

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