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A Method for Extracting Wind Turbine Blade Surface Image in Complex Background Environment

A technology for wind turbine blades and complex backgrounds, applied in the field of wind turbine blade surface image extraction, can solve problems such as difficult blade images, difficult image data, and reduced recognition accuracy, achieving low complexity, reduced workload, and light sensitivity Reduced effect

Active Publication Date: 2017-09-26
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

For wind turbine blades, it is difficult to obtain image data first, and secondly, due to the large length of wind turbine blades, it is difficult to ensure that a complete blade image can be obtained within the camera field of view during the recognition process, which leads to a decline in recognition accuracy.

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  • A Method for Extracting Wind Turbine Blade Surface Image in Complex Background Environment
  • A Method for Extracting Wind Turbine Blade Surface Image in Complex Background Environment
  • A Method for Extracting Wind Turbine Blade Surface Image in Complex Background Environment

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0034] The invention provides a method for extracting an image on the surface of a wind turbine blade, which pastes or sprays a mark on a suitable position on the surface of the wind turbine blade, and then uses a camera device to randomly capture images of the environment that may contain the blade, and monitors whether the mark on the blade surface is in the image. The area of ​​the leaf image...

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Abstract

The invention discloses a method for extracting a surface image of a wind turbine blade in a complex background environment, which includes the following steps: (1) setting a square black and white grid mark map on the windward side of each blade of the wind turbine, and the pasting position is a plane And parallel to the windward side of the blade, and then use the attitude of the marker map to replace the attitude of the blade; (2) Use the camera to collect the running image of the wind turbine, and transmit the collected image to the industrial computer in real time; (3) Collect the image collected by the camera The image information of the wind turbine is processed to obtain the surface image of the blade, and the blade information of the wind turbine is obtained according to the marking image on the blade. The invention can realize the extraction of the blade image of the running wind turbine in the field environment, simplifies the analysis and processing process, and accelerates the analysis speed.

Description

technical field [0001] The invention belongs to the technical field of wind turbine operation maintenance and image processing, and more particularly relates to a method for extracting a surface image of a wind turbine blade in a complex background environment. Background technique [0002] Faults on the surface of wind turbine blades include cracks, sand holes, surface contamination, icing, etc. If allowed to develop, it will lead to serious consequences, such as blade breakage, power generation efficiency decline, and affect the operation safety of the transmission chain. The image of the blade surface is monitored by camera equipment, which can detect faults at an early stage and arrange repairs reasonably to avoid further losses. [0003] Patents CN201410172548.4, CN201410157662.X, and CN201410171787.8 design how to divide the surface of the wind turbine blade and extract the type and location of the fault on the blade surface, all of which are based on the assumption th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/20G06T7/00G06T7/136
CPCG06T7/0004G06T2207/30164G06V10/22
Inventor 杨涛张磊黄树红高伟郭盛张琛李友良刘一帆
Owner HUAZHONG UNIV OF SCI & TECH
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