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智慧矿山挡墙状态检测方法

许联航 李曦 郭叙森 李静

许联航,李曦,郭叙森,等. 智慧矿山挡墙状态检测方法[J]. 工矿自动化,2023,49(8):121-126.  doi: 10.13272/j.issn.1671-251x.2023040036
引用本文: 许联航,李曦,郭叙森,等. 智慧矿山挡墙状态检测方法[J]. 工矿自动化,2023,49(8):121-126.  doi: 10.13272/j.issn.1671-251x.2023040036
XU Lianhang, LI Xi, GUO Xusen, et al. Method for detecting the status of retaining walls in intelligent mines[J]. Journal of Mine Automation,2023,49(8):121-126.  doi: 10.13272/j.issn.1671-251x.2023040036
Citation: XU Lianhang, LI Xi, GUO Xusen, et al. Method for detecting the status of retaining walls in intelligent mines[J]. Journal of Mine Automation,2023,49(8):121-126.  doi: 10.13272/j.issn.1671-251x.2023040036

智慧矿山挡墙状态检测方法

doi: 10.13272/j.issn.1671-251x.2023040036
详细信息
    作者简介:

    许联航 (1979—) 男, 陕西兴平人,高级工程师,研究方向为煤矿工程机械,E-mail:xlh573@163.com

    通讯作者:

    李静(1990—),女,山西忻州人,硕士, 研究方向为车路协同、智慧矿山,E-mail:jing.li@waytous.com

  • 中图分类号: TD634

Method for detecting the status of retaining walls in intelligent mines

  • 摘要: 无人驾驶车辆在矿山行驶过程中,如果矿区挡墙出现破损而没有被及时发现并修复,车辆在行驶或卸载时超出挡墙安全范围,易造成安全事故。现有的挡墙状态检测方法多是基于车端、无人机传感设备采集的点云数据,视野有限,稀疏性较大,稳定性差,且缺乏针对挡墙状态完整性检测的方法。针对上述问题,提出了一种基于路侧激光雷达传感器的挡墙状态完整性检测方法。采用分辨率较高的路侧激光雷达传感器采集车辆行驶区域的挡墙点云数据,采用多边形区域滤波及体素栅格化获得完整的挡墙点云数据。采用滑动寻迹搜索技术,沿着挡墙延伸方向将其划分成子单元,以适应不同形状挡墙。针对矿区场地不平整及远处点云数据稀疏带来的误检问题,采用高度差阈值和密度阈值双阈值法,通过检测子单元的缺陷情况得到整个挡墙状态的完整性检测。采集了内蒙古某矿区“L”型、“S”型挡墙的点云数据,并在有遮挡和无遮挡的场景下进行现场试验,结果表明,该检测方法对不同形状挡墙的缺陷均具有较强的检测能力,能够实时识别并标记出点云数据的破损部位。

     

  • 图  1  智慧矿山挡墙状态完整性检测方法流程

    Figure  1.  Intelligent mine retaining walls integrity detection method process

    图  2  主要步骤效果可视化

    Figure  2.  Visualization of main step effects

    图  3  步进点方向夹角

    Figure  3.  Stepping point direction angle

    图  4  检测框几何表示

    Figure  4.  Geometric representation of detection box

    图  5  “L”型挡墙状态检测效果可视化

    Figure  5.  Visualization of the detection effect of the "L" type retaining wall

    图  6  “S”型挡墙状态检测效果可视化

    Figure  6.  Visualization of the detection effect of the "S" type retaining wall

    图  7  被遮挡的场景检测效果可视化

    Figure  7.  Visualization of occluded scenarios detection effect

    表  1  “L”型挡墙缺陷区域采样统计

    Table  1.   Sampling and statistics of defect areas in the "L" type retaining wall m

    序号hk-maxhk-minΔh挡墙状态
    10.700.180.52塌方
    21.190.590.60塌方
    31.280.650.63塌方
    41.100.760.34塌方
    51.541.150.39塌方
    62.271.650.62塌方
    下载: 导出CSV

    表  2  “S”型挡墙缺陷区域采样统计

    Table  2.   Sampling and statistics of defect areas in the "S" type retaining wall m

    序号hk-maxhk-minΔh挡墙状态
    1−0.02−0.610.59塌方
    2−0.08−0.540.46塌方
    3−0.04−0.660.62塌方
    4−0.27−0.580.31塌方
    5−0.52−0.620.10塌方
    6−0.38−0.940.56塌方
    下载: 导出CSV

    表  3  被遮挡场景挡墙缺陷区域采样统计

    Table  3.   Sampling and statistics of retaining wall defect areas in occluded scenarios m

    序号hk-maxhk-minΔh挡墙状态
    1−0.11−0.580.47塌方
    2−0.04−0.650.61塌方
    3−0.29−0.620.33塌方
    4−0.49−0.700.21塌方
    5−0.33−0.930.60塌方
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-04-17
  • 修回日期:  2023-08-21
  • 网络出版日期:  2023-09-04

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