首页|期刊导航|湖北电力|风机叶片表面缺陷检测的WTB-YOLO模型

风机叶片表面缺陷检测的WTB-YOLO模型OA

WTB-YOLO Model for Surface Defect Detection of Wind Turbine Blades

中文摘要英文摘要

针对复杂环境下风机叶片表面缺陷检测中存在的小目标缺陷检测精度不够等问题,提出了一种高效的风机叶片缺陷检测方法,旨在提升检测精度并减少计算量和模型参数.结合可变形注意力机制增强复杂场景下的特征提取能力;设计了一种新的NSC2f模块,将归一化注意力模块与SE注意力机制应用在C2f模块中,抑制非显著特征提高小目标的检测能力;使用Slim Neck网络模块来简化颈部网络并引入动态上采样算子,减少冗余信息干扰获取更丰富的语义信息;最后对改进后的网络进行基于幅值的层自适应稀疏化剪枝,进一步减小模型参数及计算量.实验结果表明,WTB-YOLO模型检测精度达到了86.8%,mAP@0.5达到了88.7%,相比原始YOLOv8n模型检测精度提升2.1%,mAP@0.5提高了2.6%,参数量减少了46.7%,计算量减少了48.1%,模型尺寸减少了42.9%,在提高精度的同时实现了较好的轻量化性能.

In order to address the problems of insufficient detection accuracy for small target defects in wind turbine blade surface defect detection under complex environmental conditions,this paper proposes an efficient method for detecting defects in wind turbine blades,aimed to enhance detection accuracy and reduce computational load and model parameters.In the method,feature extraction in complex scenarios is improved by integrating a deformable attention mechanism;a novel NSC2f module is designed,which combines a normalized attention module with the SE attention mechanism within the C2f structure,effectively suppressing non-significant features and enhancing the detection capability for small targets.Additionally,the Slim Neck network module is employed to simplify the neck architecture and introduce a dynamic upsampling operator,thereby reducing interference from redundant information and capturing richer semantic features.Finally,the improved network is pruned by using magnitude-based layer adaptive sparsification pruning to further reduce both model parameters and computational load.Experimental results are demonstrated as follows:The WTB-YOLO model achieves a detection accuracy of 86.8%and an mAP@0.5 of 88.7%.Compared to the original YOLOv8n model,detection accuracy has been improved by 2.1%,mAP@0.5 increased by 2.6%,model parameters decreased by 46.7%,computational load reduced by 48.1%,and model size shrunk by 42.9%,achieving superior lightweight performance while maintaining improved detection accuracy.

FAN Wentian

School of Electrical Engineering and New Energy,China Three Gorges University,Yichang Hubei 443002,China

信息技术与安全科学

风力发电风机叶片小尺度缺陷检测深度学习YOLOv8注意力机制新能源可再生能源

wind power generationwind turbine bladessmall-scale defect detectiondeep learningYOLOv8nattention mechanismnew energyrenewable energy

《湖北电力》 2025 (2)

46-55,10

10.3969/j.issn.1006-3986.2025.02.006

评论