Article(id=1156949463525843171, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156949362480861758, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2309161, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1700496000000, receivedDateStr=2023-11-21, revisedDate=1730736000000, revisedDateStr=2024-11-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1753767847186, onlineDateStr=2025-07-29, pubDate=1738944000000, pubDateStr=2025-02-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753767847186, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753767847185, creator=13701087609, updateTime=1753767847185, updator=13701087609, issue=Issue{id=1156949362480861758, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='4', pageStart='1312', pageEnd='1751', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753767823094, creator=13701087609, updateTime=1755171161273, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1162835389472424814, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156949362480861758, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1162835389472424815, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156949362480861758, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1563, endPage=1572, ext={EN=ArticleExt(id=1156949464003993845, articleId=1156949463525843171, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Train Connection Handle Recognition Method Based on YOLOv5 and Its Application in Automatic Unhook Machine, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
Accurately identifying the connecting handle of the train coupler is of great significance for the operation of the uncoupling robot. A train connection handle target recognition algorithm based on improved YOLOv5 was proposed to address this issue. The C_switchable atrous convolution(C_SAC) module was integrated into the backbone feature extraction network, and the wise intersection over union(WIOU) function was introduced as a new bounding box loss function to enhance the feature extraction ability of the backbone network, improve the model’s generalization ability and convergence rate. Then, images of the connecting handles of train couplers in different environments and positions on the production site were collected for recognition. The experimental results show that the improved YOLOv5 algorithm achieves a target recognition rate of 96.6% for the connecting handles of train couplers. Compared with the original algorithm, it shows significant improvements in accuracy, recall, average accuracy, and other aspects. Finally, it was applied in the development of an automatic uncoupling robot for train carriages, greatly improving the accuracy and effectiveness of automatic uncoupling.
, correspAuthors=Shu-ting WAN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Lei LIU, Ye WANG, Chang-he TIAN, Jia-yi DING, Fan DONG, Shu-ting WAN), CN=ArticleExt(id=1156949551681724698, articleId=1156949463525843171, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=基于YOLOv5的火车连接手柄识别方法及在自动摘钩机器的应用, columnId=1156262729783567290, journalTitle=科学技术与工程, columnName=论文·自动化技术、计算机技术, runingTitle=null, highlight=null, articleAbstract=
能否准确识别火车车钩的连接手柄对摘钩机器人的工作具有重大意义。针对这一问题,提出一种基于改进YOLOv5的火车连接手柄目标识别算法,在主干特征提取网络中融入C_SAC(C_switchable atrous convolution)模块,并引入WIOU (wise intersection over union)函数作为新的边界框损失函数,增强主干网络的特征提取能力,提高模型的泛化能力和收敛速率。然后采集生产现场不同环境、不同位置下的火车车钩连接手柄图片进行识别,实验结果表明改进的YOLOv5算法对火车车钩连接手柄的目标识别率达到96.6%,相比于原始算法效果在准确率、召回率、平均精度等方面均有较大提升。最后应用于研制的火车车厢自动摘钩机器人中,极大提高了自动摘钩的准确性和有效性。
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刘雷(1988—),男,蒙古族,内蒙古赤峰人,工程师。研究方向:港口机械智能识别技术。E-mail:15847503518@163.com。
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刘雷(1988—),男,蒙古族,内蒙古赤峰人,工程师。研究方向:港口机械智能识别技术。E-mail:15847503518@163.com。
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2 华北电力大学河北省电力机械装备健康维护与失效预防重点实验室, 保定 071003, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1225944421145952611, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, xref=2, ext=[AuthorCompanyExt(id=1225944421154341221, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, companyId=1225944421145952611, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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摘钩机器人工作示意图 1为摘钩机械手臂;2为连接手柄;3为摄像头
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Schematic diagram of YOLOv5 model improvement, figureFileSmall=USjDcS6Z518igWQG9otkwQ==, figureFileBig=N4lQinR/vhVBbB9xUqMkWw==, tableContent=null), ArticleFig(id=1225944428053971885, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图2, caption=
YOLOv5模型改进结构示意图 CBS为基础卷积模块,由单个卷积层构成;C3_1、C3_2为相同卷积模块,由三层卷积层构成;SPPF:空间金字塔池化层;Upsample为上采样操作;Concat为拼接模块
, figureFileSmall=USjDcS6Z518igWQG9otkwQ==, figureFileBig=N4lQinR/vhVBbB9xUqMkWw==, tableContent=null), ArticleFig(id=1225944429387760567, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.3, caption=
Overall architecture of C_SAC, figureFileSmall=z845hdyHSZDK/qOyOJ7mjA==, figureFileBig=9g0TO01G45W9Mfxj+rMKzQ==, tableContent=null), ArticleFig(id=1225944429601670082, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图3, caption=
C_SAC总体架构 Global AvgPool为全局平均池化层;AvgPool为平均池化层;Conv为卷积;Input为输入;Output为输出;GC为Global AvgPool模块与Conv 1×1模块的组合;AC为Avgpool(5×5)模块与Conv 1×1模块的组合;在C_SAC结构中,Atrous为膨胀卷积(dilated convolution),它通过在卷积核元素之间引入空洞来扩大感受野,而无须增加计算量;膨胀因子控制卷积核之间的空隙,从而捕捉更广泛的上下文信息
, figureFileSmall=z845hdyHSZDK/qOyOJ7mjA==, figureFileBig=9g0TO01G45W9Mfxj+rMKzQ==, tableContent=null), ArticleFig(id=1225944429882688470, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.4, caption=
Schematic diagram of the operation handle, figureFileSmall=W3OoEFf3bxBwPIR+K023xg==, figureFileBig=Otsfp6GcdRwLJTaY8iYfow==, tableContent=null), ArticleFig(id=1225944430046266344, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图4, caption=
操作手柄的示意图, figureFileSmall=W3OoEFf3bxBwPIR+K023xg==, figureFileBig=Otsfp6GcdRwLJTaY8iYfow==, tableContent=null), ArticleFig(id=1225944430293730300, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.5, caption=
Data expansion processing, figureFileSmall=x8/wjiMJPDPZmytZq84x+w==, figureFileBig=656dFccFRZsENd5qFOYq/A==, tableContent=null), ArticleFig(id=1225944430423752708, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图5, caption=
数据扩充处理, figureFileSmall=x8/wjiMJPDPZmytZq84x+w==, figureFileBig=656dFccFRZsENd5qFOYq/A==, tableContent=null), ArticleFig(id=1225944430633467922, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.6, caption=
Comparison of evaluation standards, figureFileSmall=zYOo95iWJ/ohwt40Fd102A==, figureFileBig=hNYE03eQjLF8Mm6dZNBetA==, tableContent=null), ArticleFig(id=1225944430792851489, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图6, caption=
评测标准对比, figureFileSmall=zYOo95iWJ/ohwt40Fd102A==, figureFileBig=hNYE03eQjLF8Mm6dZNBetA==, tableContent=null), ArticleFig(id=1225944430931263534, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.7, caption=
Loss curve, figureFileSmall=rrrOuwcigFT4G6eNI4KW0Q==, figureFileBig=S95P9NaRVivV5msZWw5ABA==, tableContent=null), ArticleFig(id=1225944431111618618, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图7, caption=
损失曲线, figureFileSmall=rrrOuwcigFT4G6eNI4KW0Q==, figureFileBig=S95P9NaRVivV5msZWw5ABA==, tableContent=null), ArticleFig(id=1225944431271002184, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.8, caption=
Change curves of various evaluation indicators, figureFileSmall=z4X33PWkZbQnFT7pp9GTJQ==, figureFileBig=IAXmAdrpKs2vLDJTrdSC8g==, tableContent=null), ArticleFig(id=1225944431468134490, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图8, caption=
各评价指标变化曲线, figureFileSmall=z4X33PWkZbQnFT7pp9GTJQ==, figureFileBig=IAXmAdrpKs2vLDJTrdSC8g==, tableContent=null), ArticleFig(id=1225944431635906666, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.9, caption=
Comparison of confusion matrix, figureFileSmall=0op+g9TiSo5Gg8F4dKwq+A==, figureFileBig=zJs4vrgYYWCwtk6sp5/i0Q==, tableContent=null), ArticleFig(id=1225944431774318712, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图9, caption=
混淆矩阵对比, figureFileSmall=0op+g9TiSo5Gg8F4dKwq+A==, figureFileBig=zJs4vrgYYWCwtk6sp5/i0Q==, tableContent=null), ArticleFig(id=1225944431971451021, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.10, caption=
Comparison of detection results of the improved algorithm, figureFileSmall=y0G+oyjcR2IGRCGpzYKC+Q==, figureFileBig=KYpfrjnBS0qD/tBgkjG1nw==, tableContent=null), ArticleFig(id=1225944432122445977, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图10, caption=
改进算法检测结果对比, figureFileSmall=y0G+oyjcR2IGRCGpzYKC+Q==, figureFileBig=KYpfrjnBS0qD/tBgkjG1nw==, tableContent=null), ArticleFig(id=1225944432286023847, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Fig.11, caption=
Overall flow chart of unhook robot, figureFileSmall=LN+lFaCvaXY8xWsC5dgVEg==, figureFileBig=RsY6zwREpvhZavLSA7zdJQ==, tableContent=null), ArticleFig(id=1225944432453796016, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=图11, caption=
摘钩机器人摘钩整体流程图, figureFileSmall=LN+lFaCvaXY8xWsC5dgVEg==, figureFileBig=RsY6zwREpvhZavLSA7zdJQ==, tableContent=null), ArticleFig(id=1225944433808556223, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Table 1, caption=
Training parameters
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| 训练参数 | 数值 |
| 输入图片尺寸 | 640×640 |
| 初始学习率 | 0.01 |
| 优化器 | SGD |
| 优化器动量 | 0.937 |
| 训练批次数 | 8 |
| 迭代周期数 | 200 |
| 预训练权重 | YOLOv5n.pt |
), ArticleFig(id=1225944433988911307, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=表1, caption=
训练参数
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| 训练参数 | 数值 |
| 输入图片尺寸 | 640×640 |
| 初始学习率 | 0.01 |
| 优化器 | SGD |
| 优化器动量 | 0.937 |
| 训练批次数 | 8 |
| 迭代周期数 | 200 |
| 预训练权重 | YOLOv5n.pt |
), ArticleFig(id=1225944434227986648, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Table 2, caption=
Add C_SAC modules in different positions
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| 方法 | 平均精度 | mAP50-95 | 参数量/B |
| YOLOv5 | 0.929 | 0.749 | 1 761 871 |
| YOLOv5+C_SAC+one | 0.953 | 0.771 | 1 942 736 |
| YOLOv5+C_SAC+two | 0.953 | 0.766 | 2 083 299 |
| YOLOv5+C_SAC+three | 0.949 | 0.772 | 2 186 262 |
), ArticleFig(id=1225944434345427167, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=表2, caption=
不同位置C_SAC模块添加
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| 方法 | 平均精度 | mAP50-95 | 参数量/B |
| YOLOv5 | 0.929 | 0.749 | 1 761 871 |
| YOLOv5+C_SAC+one | 0.953 | 0.771 | 1 942 736 |
| YOLOv5+C_SAC+two | 0.953 | 0.766 | 2 083 299 |
| YOLOv5+C_SAC+three | 0.949 | 0.772 | 2 186 262 |
), ArticleFig(id=1225944434555142375, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Table 3, caption=
Comparison of effects of different modules
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| 方法 | 准确率 | 召回率 | 平均精 度 | mAP50-95 |
| YOLOv5 | 0.946 | 0.875 | 0.931 | 0.749 |
| YOLOv5+C_SAC | 0.980 | 0.898 | 0.953 | 0.771 |
| YOLOv5+C_SAC+WIOU | 0.978 | 0.922 | 0.966 | 0.782 |
), ArticleFig(id=1225944434680971503, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=表3, caption=
不同模块效果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 准确率 | 召回率 | 平均精 度 | mAP50-95 |
| YOLOv5 | 0.946 | 0.875 | 0.931 | 0.749 |
| YOLOv5+C_SAC | 0.980 | 0.898 | 0.953 | 0.771 |
| YOLOv5+C_SAC+WIOU | 0.978 | 0.922 | 0.966 | 0.782 |
), ArticleFig(id=1225944434819383545, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=EN, label=Table 4, caption=
Comparison of different algorithms
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| 方法 | 参数量/B | 最佳权重/kB | 平均精度 |
| SSD | 26 285 486 | 93 303 | 0.820 8 |
| Fasterrcnn | 137 098 724 | 0.898 | 0.836 2 |
| YOLOv8 | 3 006 038 | 6 111 | 0.855 0 |
| YOLOv10 | 2 695 196 | 5 644 | 0.815 0 |
| 改进算法 | 1 942 736 | 4.2 | 0.966 0 |
), ArticleFig(id=1225944434949406979, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156949463525843171, language=CN, label=表4, caption=
不同算法对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 参数量/B | 最佳权重/kB | 平均精度 |
| SSD | 26 285 486 | 93 303 | 0.820 8 |
| Fasterrcnn | 137 098 724 | 0.898 | 0.836 2 |
| YOLOv8 | 3 006 038 | 6 111 | 0.855 0 |
| YOLOv10 | 2 695 196 | 5 644 | 0.815 0 |
| 改进算法 | 1 942 736 | 4.2 | 0.966 0 |
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