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矿井提升机钢丝绳外观缺陷视觉识别技术研究

王国锋 王守军 陶荣颖 李南 罗自强

王国锋,王守军,陶荣颖,等. 矿井提升机钢丝绳外观缺陷视觉识别技术研究[J]. 工矿自动化,2024,50(5):28-35.  doi: 10.13272/j.issn.1671-251x.2024010080
引用本文: 王国锋,王守军,陶荣颖,等. 矿井提升机钢丝绳外观缺陷视觉识别技术研究[J]. 工矿自动化,2024,50(5):28-35.  doi: 10.13272/j.issn.1671-251x.2024010080
WANG Guofeng, WANG Shoujun, TAO Rongying, et al. Research on visual recognition technology for appearance defects of steel wire rope in mine hoist[J]. Journal of Mine Automation,2024,50(5):28-35.  doi: 10.13272/j.issn.1671-251x.2024010080
Citation: WANG Guofeng, WANG Shoujun, TAO Rongying, et al. Research on visual recognition technology for appearance defects of steel wire rope in mine hoist[J]. Journal of Mine Automation,2024,50(5):28-35.  doi: 10.13272/j.issn.1671-251x.2024010080

矿井提升机钢丝绳外观缺陷视觉识别技术研究

doi: 10.13272/j.issn.1671-251x.2024010080
基金项目: 安徽省自然科学基金项目(1808085QE130)。
详细信息
    作者简介:

    王国锋(1967—),男,安徽淮南人,高级工程师,研究方向为矿井机电运输装备信息化、智能化,E-mail:huamuna@sina.com

  • 中图分类号: TD532

Research on visual recognition technology for appearance defects of steel wire rope in mine hoist

  • 摘要: 针对多根钢丝绳检测部署困难、钢丝绳图像采集质量较低、视觉检测法适应性差、准确性不高等问题,提出了一种基于计算机视觉和深度学习的矿井提升机钢丝绳外观缺陷视觉识别方法。首先构建矿井提升机钢丝绳在线监测系统;其次由地面移动巡检平台和井下本安高速相机采集钢丝绳图像,建立钢丝绳图像数据集;然后考虑井下粉尘影响、相机镜头易受污染、光照不均、钢丝绳高光反射等问题,采用基于Retinex算法的图像去噪方法和基于同态滤波的图像去噪方法对钢丝绳图像进行去噪处理,处理结果表明,基于色彩增益加权的多尺度Retinex(AutoMSRCR)算法为较优方案;最后缺陷检测过程以卷积神经网络为基础,构建基于YOLOv5s的缺陷检测模型,为降低人为因素影响、调参工作量,在YOLOv5s中加入Focus结构对其进行优化,并将改进的YOLOv5s模型作为钢丝绳缺陷检测的预训练模型,以进一步降低模型内存占用率,提高模型加载和检测速度。实验结果表明,所提方法对钢丝绳2处断丝的检测误差分别为1.61%,1.35%,对钢丝绳4处磨损的检测误差分别为2.43%,3.44%,2.11%,3.39%。针对淮河能源控股集团顾北煤矿主井提升机原有钢丝绳安全监测系统的检测精度无法满足现场需求的问题,采用所提方法对原系统进行改进,现场应用效果表明,钢丝绳断丝检测准确率由80%提升至96%,损伤定位误差由500 mm降低至300 mm范围内,损伤定位准确率由75%提升至98%,损伤实时检出率由76%提升至90%,尾绳畸变检出率由70%提升至85%。

     

  • 图  1  矿井提升机钢丝绳在线监测系统组成

    Figure  1.  Online monitoring system composition of mine hoist steel wire rope

    图  2  移动巡检平台

    Figure  2.  Mobile inspection platform

    图  3  Retinex算法处理结果

    Figure  3.  Processing results of Retinex algorithms

    图  4  同态滤波算法处理结果

    Figure  4.  Processing results of homomorphic filtering algorithms

    图  5  钢丝绳缺陷检测实验流程

    Figure  5.  Experimental flow of wire ropes defect detection

    图  6  改进YOLOv5s网络结构

    Figure  6.  Improved YOLOv5s network structure

    图  7  钢丝绳断丝检测结果

    Figure  7.  Breakage detection results of steel wire rope

    图  8  钢丝绳磨损检测结果

    Figure  8.  Surface wear detection results of steel wire rope

    表  1  不同方法的峰值信噪比

    Table  1.   Peak signal-to-noise ratio of different methods

    去噪方法AutoMSRCRMSR高斯滤波指数滤波
    PSNR13.2512.6311.7911.18
    下载: 导出CSV

    表  2  断丝检测定位结果

    Table  2.   Breakage detection and positioning results of steel wire rope

    方法 断丝实际位置/m 检测位置/m 误差/%
    文献[9]方法10.5610.183.60
    11.1210.693.87
    文献[11]方法10.5610.292.56
    11.1211.463.06
    本文方法10.5610.391.61
    11.1210.971.35
    下载: 导出CSV

    表  3  磨损检测定位结果

    Table  3.   Surface wear detection and positioning results of steel wire rope

    方法 磨损实际位置/m 检测位置/m 误差/%
    文献[9]方法 5.75 5.41 5.91
    6.11 未识别
    6.62 6.31 4.68
    6.79 未识别
    文献[11]方法 5.75 5.50 4.35
    6.11 未识别
    6.62 6.37 3.78
    6.79 未识别
    本文方法 5.75 5.89 2.43
    6.11 6.32 3.44
    6.62 6.48 2.11
    6.79 7.02 3.39
    下载: 导出CSV

    表  4  效果对比

    Table  4.   Effect comparison

    比较项目改进前改进后
    断丝检测准确率/%≥80≥96
    损伤定位误差/mm≤500≤300
    损伤定位准确率/%≥75≥98
    损伤实时检出率/%≥76≥90
    尾绳畸变检出率/%≥70≥85
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-01-23
  • 修回日期:  2024-05-15
  • 网络出版日期:  2024-06-13

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