The application provides a method, apparatus and electronic device for monitoring tower clearance. The method for monitoring tower clearance includes: obtaining a distance to an obstacle measured by a laser ranging device; calculating a measured clearance value of each laser based on a first distance of the laser; compensating the measured clearance value of each laser by a preset compensation formula to obtain a compensated clearance value of the laser; comparing a minimum compensated clearance value among N lasers with a preset clearance threshold; and performing safety protection for the wind turbine based on a comparison result.

An aerial vehicle obtains information regarding the external condition of a wind turbine. The wind turbine includes a tower, a nacelle rotatably supported by the tower, and a wireless charging device provided in the nacelle for charging the aerial vehicle. The aerial vehicle charged by the wireless charging device can stably acquire information regarding the appearance of the wind turbine without being limited in an available flight time.

A method for improving quality of a rotor blade of a wind turbine includes receiving, via a data acquisition module of a controller, image data relating to the rotor blade. The image data is collected during or after manufacturing of the rotor blade before the rotor blade is placed into operation on the wind turbine. The method includes identifying, via a processor of the controller, an anomaly on the rotor blade using the image data relating to the rotor blade. The method also includes determining, via the processor, a location of the anomaly of the rotor blade using a combination of at least two of the following: an estimated location of an imaging device when the image data was collected, a known location of a pixel as represented by multiple angles that describe a location of the pixel and the anomaly within the image data as projected onto a spherical shell, Light Detection and Ranging (LIDAR) data of a cross section of the rotor blade at a time and location when the image data was collected, a specific internal cavity that the imaging device is in when the image data was collected, or a computer-aided design (CAD) model of the rotor blade. Further, the method includes displaying, via the processor, the location of the anomaly of the rotor blade. Moreover, the method includes implementing, via the processor, a corrective action for a subsequent manufacturing process of another rotor blade based on the location of the anomaly of the rotor blade.

Provided are a panoramic stitching method for infrared images of a wind turbine blade, a device, a storage medium, and a product. The stitching method includes: performing coarse registration on each frame of visible image and infrared image; separately performing background subtraction on a coarsely-registered visible image and a coarsely-registered infrared image to obtain a foreground mask visible image, a foreground mask infrared image, a background-subtracted blade visible image, and a background-subtracted blade infrared image; performing fine registration on the foreground mask visible image and the foreground mask infrared image to obtain a relative displacement; stitching a plurality of frames of blade visible images to obtain a pixel increment; calculating a pixel increment when two adjacent frames of blade infrared images are stitched; and stitching two corresponding adjacent frames of background-subtracted blade infrared images, to obtain an infrared panoramic image of the wind turbine blade.