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基于深度学习和图匹配的接线图检测与校核

李昊 王杉 耿玉杰 王黎 孙文昌 苗纯源

李昊, 王杉, 耿玉杰, 等 . 基于深度学习和图匹配的接线图检测与校核[J]. 北京航空航天大学学报, 2021, 47(3): 539-548. doi: 10.13700/j.bh.1001-5965.2020.0478
引用本文: 李昊, 王杉, 耿玉杰, 等 . 基于深度学习和图匹配的接线图检测与校核[J]. 北京航空航天大学学报, 2021, 47(3): 539-548. doi: 10.13700/j.bh.1001-5965.2020.0478
LI Hao, WANG Shan, GENG Yujie, et al. Wiring diagram detection and check based on deep learning and graph matching[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(3): 539-548. doi: 10.13700/j.bh.1001-5965.2020.0478(in Chinese)
Citation: LI Hao, WANG Shan, GENG Yujie, et al. Wiring diagram detection and check based on deep learning and graph matching[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(3): 539-548. doi: 10.13700/j.bh.1001-5965.2020.0478(in Chinese)

基于深度学习和图匹配的接线图检测与校核

doi: 10.13700/j.bh.1001-5965.2020.0478
基金项目: 

国网山东省电力公司科技项目 5206021900TW

详细信息
    作者简介:

    李昊  男,硕士,工程师。主要研究方向:电力调度自动化

    王杉  男,技师。主要研究方向:电力调度自动化

    耿玉杰  男,硕士,高级工程师。主要研究方向:电力调度自动化

    王黎  女,硕士,高级工程师。主要研究方向:电力调度自动化与继电保护

    孙文昌  男,硕士研究生。主要研究方向:计算机视觉

    苗纯源  男,硕士研究生。主要研究方向:计算机视觉

    通讯作者:

    李昊, E-mail: lihao-0717@163.com

  • 中图分类号: TP399;TM734

Wiring diagram detection and check based on deep learning and graph matching

Funds: 

Science and Technology Project of State Grid Shandong Electric Power Company 5206021900TW

More Information
  • 摘要:

    传统的厂站一次接线图的绘制和管理主要依靠电网运行人员,费时费力且缺乏科学可校核的参考标准。提出了一种基于深度神经网络和数字图像处理相结合的厂站一次接线图的自动检测、识别和校核算法。首先,使用目标检测Faster R-CNN模型检测厂站接线图中的电器元件,并达到92%的检测准确率,同时使用端到端的文字检测识别模型识别厂站接线图中的文字信息,并达到94.2%的文字检测准确率和92%的文字识别准确率;然后,使用数字图像处理技术进行厂站接线图连接线、拓扑关系识别;最后,使用改进的VF2算法进行厂站一次接线图和人工维护的厂站一次接线图拓扑关系匹配校核,将拓扑数据抽象为无向图,通过轮廓序号得到元件的相对位置信息,根据改进的VF2算法得到2张图的匹配率,并通过匹配率与设定好的阈值来帮助核验,相比于节点遍历的匹配方法,核验准确率提高了37.5%。基于某供电公司提供的部分变电站的厂站一次接线图标注了接线图电器元件,贡献了一个小型接线图数据集。

     

  • 图 1  厂站一次接线图识别流程

    Figure 1.  Identification flowchart of primary wiring diagram of plant and station

    图 2  厂站接线图多尺度融合检测算法

    Figure 2.  Multi-scale fusion detection algorithm for wiring diagram of plant and station

    图 3  厂站接线图文字识别流程

    Figure 3.  Text recognition process of wiring diagram of plant and station

    图 4  厂站接线图文字识别分割

    Figure 4.  Text recognition segmentation of wiring diagram of plant and station

    图 5  电子图示例

    Figure 5.  Example of electronic wiring diagram

    图 6  人工图示例

    Figure 6.  Example of manual wiring diagram

    图 7  电子图匹配结果

    Figure 7.  Matching results of electronic wiring diagram

    图 8  人工图匹配结果

    Figure 8.  Matching results of manual wiring diagram

    表  1  电器元件识别实验结果对比

    Table  1.   Comparison of electrical component recognition experiment results

    类别 检测准确率/%
    YOLOv3 Faster R-CNN Faster R-CNN融合算法
    断路器 100 84 85.6
    接地刀闸 92.7 90.5 96.6
    接地 85.6 72.7 87.6
    电抗 85.2 89.3 97.9
    刀闸 95.3 86.7 94.8
    变压器 96.9 100 100
    避雷器 93.1 80 94.4
    母线 87.5 85.9 97.2
    手车开关 89.1 95.1 96
    熔断器 93.9 92.7 93.3
    电容 82.6 66.5 88.8
    隔离手车1 87.2 0.72 76
    隔离手车2 92.2 58.4 81.8
    所变 94.6 86.1 88.9
    电压互感器 96.4 88.6 85.7
    电力电感器 75.4 83.3 94.4
    忽略部件 80 66.7 80
    平均 89.5 83.5 92
    下载: 导出CSV

    表  2  文字识别实验结果对比

    Table  2.   Comparison of text recognition experiment results

    检测算法 文本区域检测准确率/% 文本识别准确率/%
    Advanced EAST+Tesseract OCR 76.6 78
    Attention-OCR 94.2 92
    下载: 导出CSV

    表  3  拓扑关系识别测试结果

    Table  3.   Test results of topological relation recognition

    图片名称 正确的连接关系数 连接关系总数 准确率/%
    10097 71 85 83.53
    10099 115 119 96.64
    10125 93 103 90.29
    10129 67 80 83.75
    20008 88 92 95.65
    20009 68 104 65.38
    20014 149 151 98.68
    下载: 导出CSV

    表  4  两种方法的匹配率结果

    Table  4.   Matching rate results of two methods

    测试组别 匹配率/%
    节点遍历方法 改进的VF2算法
    第1组 27.97 55.95
    第2组 37.50 51.61
    第3组 0.74 54.74
    第4组 62.07 63.49
    第5组 24.42 76.67
    第6组 9.33 92.00
    第7组 93.24 92.86
    第8组 0 71.69
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-08-31
  • 录用日期:  2020-09-11
  • 刊出日期:  2021-03-20

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