Shooting guiding type dynamic detection system for wind power blade defect of unmanned aerial vehicle and method thereof

Abstract

The invention discloses a shooting guiding type dynamic detection system for a wind power blade defect of an unmanned aerial vehicle. The detection system comprises a global blade motion measurement system, a local unmanned aerial vehicle station blade damage detection system, an information processing analysis and control system, and a field comprehensive support and support system. In addition,the invention also discloses a detection method based on the system. Camera calibration is carried out; the global measurement system collects an image of the rotating blade, full-field displacement and strain information of the blade is obtained, and the contour of the rotating blade is extracted; short-distance local observation of the unmanned aerial vehicle is controlled and planned, high-resolution images of local areas of interests of the blade at different positions under different stress states are obtained; and artificial or semi-automatic fault detection analysis is performed according to the displacement of the feature points on the blade and image changes. The detection process is stable; the high-precision detection of the global and local surfaces of the large-scale wind power blade is realized; the detection efficiency is high; the functions are diversified; the system is easy to control; and lots of manpower is saved.

Description

Technical field [0001] The invention relates to a camera measurement technology and a moiré detection technology, in particular to a camera-guided dynamic detection system and method for the bubbling and surface defects of UAV wind power blades. Background technique [0002] As my country's comprehensive national strength continues to increase, the country's demand for energy continues to rise. The use of wind energy to generate electricity has become a reliable clean energy source. my country started the exploration and demonstration of wind power projects in the 1980s. It is expected to meet 17% of domestic electricity demand by 2050. Large-scale wind farms are mostly built in remote mountainous areas or offshore areas, with inconvenient transportation and high-altitude units. Once some components of the unit fail, not only will the long-term shutdown cause loss of power generation, but also the re-hoisting and component replacement of the entire unit. Both require a lot of ...

AI Technical Summary

Problems solved by technology

Practical blade inspection methods require the use of telescopes and rope spiders for visual inspection when the instrument is stopped. There are few inspection items, low efficiency, and low reliability. Mechanical failures in blades and other structures cannot be found in time, which seriously hinders the wind power industry. sustainable development

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