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With the rapid development of ultra high voltage direct current(DC) power transmission technology, the stability of valve base electronics (VBE) device is crucial for ensuring the reliability and efficiency of DC power transmission. The defects in VBE device circuit boards, such as short circuits and failed components, directly affect the system stability. However, the existing detection methods including manual microscopic inspection and automatic detection algorithms are often limited by their low efficiency and insufficient accuracy. In this paper, an automatic visual inspection method based on point pattern matching is proposed to address these challenges. This method significantly improves its detection accuracy and efficiency by generating point patterns that represent key areas and further matching them, which is particularly suitable for rapid quality control on production lines. Experimental validation shows that the proposed method significantly outperforms the traditional methods in terms of detection speed and accuracy, providing an effective technical solution for improving the quality of DC power transmission equipment and demonstrating important practical value.
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随着特高压直流输电技术飞速发展,换流阀阀基电子VBE(valve base electronics)设备的稳定性对于保障直流输电的可靠性和效率至关重要。VBE 设备电路板缺陷,如短路和失效元件,直接影响直流系统稳定性,而现有的检测方法,包括人工显微镜检查和自动检测算法,常受限于效率低和准确性不足。针对该问题,提出一种基于点模式匹配的自动视觉检测方法,通过生成代表关键区域的点模式并进行匹配来提高检测的效率和准确率。通过实验验证,所提方法在检测速度和准确性方面相较于传统方法有显著提升,适合于生产线上的快速质量控制,为提高直流输电设备的质量提供了有效的技术方案。
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 |
刘隆晨(1987-),男,通信作者,博士研究生,高级工程师。研究方向:高压直流输电及换流阀检测试验技术。E-mail: liulongchen@live.cn。 |
杨玥坪(1995-),男,硕士研究生,工程师。研究方向:柔性直流输电技术。E-mail: yangyp0018@sc.sgcc.com.cn。
陈少卿(1973-),男,博士研究生,教授级高级工程师。研究方向:特高压直流输电技术。E-mail: chensq1616@sc.sgcc.com.cn。
张鹏(1985-),男,本科,高级工程师。研究方向:特高压直流运检技术。E-mail: zhangp0077@sc.sgcc.com.cn。
曹运龙(1984-),男,本科,高级工程师。研究方向:晶闸管换流阀运维技术。E-mail: caoyl1318@sc.sgcc.com.cn。
余人(1991-),男,本科,工程师。研究方向:换流阀阀控系统测试技术。E-mail: yur0015@sc.sgcc.com.cn。
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刘隆晨(1987-),男,通信作者,博士研究生,高级工程师。研究方向:高压直流输电及换流阀检测试验技术。E-mail: liulongchen@live.cn。
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刘隆晨(1987-),男,通信作者,博士研究生,高级工程师。研究方向:高压直流输电及换流阀检测试验技术。E-mail: liulongchen@live.cn。
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杨玥坪(1995-),男,硕士研究生,工程师。研究方向:柔性直流输电技术。E-mail: yangyp0018@sc.sgcc.com.cn。
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杨玥坪(1995-),男,硕士研究生,工程师。研究方向:柔性直流输电技术。E-mail: yangyp0018@sc.sgcc.com.cn。
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陈少卿(1973-),男,博士研究生,教授级高级工程师。研究方向:特高压直流输电技术。E-mail: chensq1616@sc.sgcc.com.cn。
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陈少卿(1973-),男,博士研究生,教授级高级工程师。研究方向:特高压直流输电技术。E-mail: chensq1616@sc.sgcc.com.cn。
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张鹏(1985-),男,本科,高级工程师。研究方向:特高压直流运检技术。E-mail: zhangp0077@sc.sgcc.com.cn。
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张鹏(1985-),男,本科,高级工程师。研究方向:特高压直流运检技术。E-mail: zhangp0077@sc.sgcc.com.cn。
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2 Ultra High Voltage DC Center, State Grid Sichuan Electric Power Company Chengdu 610000 China
3 Power Internet of Things Key Laboratory of Sichuan Province Chengdu 610041 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154049488504213916, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, authorId=1154049488361607576, language=CN, stringName=曹运龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 国网四川省电力公司特高压直流中心 成都 610000
3 电力物联网四川省重点实验室 成都 610041, bio={"content":"
曹运龙(1984-),男,本科,高级工程师。研究方向:晶闸管换流阀运维技术。E-mail: caoyl1318@sc.sgcc.com.cn。
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曹运龙(1984-),男,本科,高级工程师。研究方向:晶闸管换流阀运维技术。E-mail: caoyl1318@sc.sgcc.com.cn。
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2 Ultra High Voltage DC Center, State Grid Sichuan Electric Power Company Chengdu 610000 China
3 Power Internet of Things Key Laboratory of Sichuan Province Chengdu 610041 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154049488697151906, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, authorId=1154049488562934174, language=CN, stringName=余人, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 国网四川省电力公司特高压直流中心 成都 610000
3 电力物联网四川省重点实验室 成都 610041, bio={"content":"
余人(1991-),男,本科,工程师。研究方向:换流阀阀控系统测试技术。E-mail: yur0015@sc.sgcc.com.cn。
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余人(1991-),男,本科,工程师。研究方向:换流阀阀控系统测试技术。E-mail: yur0015@sc.sgcc.com.cn。
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Flow chart of improved point pattern matching algorithm ${}^{\left\lbrack {12}\right\rbrack }$, figureFileSmall=fJEdc7HBLzla4XscYx69Qw==, figureFileBig=c70HM7X4AY2JQNsTv8lLRg==, tableContent=null), ArticleFig(id=1154049490282598830, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=CN, label=图1, caption=
改进点模式匹配算法流程 ${}^{\left\lbrack {12}\right\rbrack }$, figureFileSmall=fJEdc7HBLzla4XscYx69Qw==, figureFileBig=c70HM7X4AY2JQNsTv8lLRg==, tableContent=null), ArticleFig(id=1154049490345513391, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 2, caption=
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Flow chart of image preprocessing, figureFileSmall=yY9Jq1P+NXmVzc22i+prHw==, figureFileBig=mHd/7DthofT42yPLGpf8BQ==, tableContent=null), ArticleFig(id=1154049490530062770, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=CN, label=图3, caption=
图像预处理流程, figureFileSmall=yY9Jq1P+NXmVzc22i+prHw==, figureFileBig=mHd/7DthofT42yPLGpf8BQ==, tableContent=null), ArticleFig(id=1154049490584588723, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 4, caption=
Image grayscale processing, figureFileSmall=I/6ztFELxcxrtBcHVlCOBg==, figureFileBig=q/MBJfYlb0+RmyKzKqkdxw==, tableContent=null), ArticleFig(id=1154049490643308980, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=CN, label=图4, caption=
图像灰度化处理, figureFileSmall=I/6ztFELxcxrtBcHVlCOBg==, figureFileBig=q/MBJfYlb0+RmyKzKqkdxw==, tableContent=null), ArticleFig(id=1154049490697834933, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 5, caption=
Effect of implementing Canny operator, figureFileSmall=ZZSMmZMGAMjlE1b2qHKaNw==, figureFileBig=esdbsou83Hz9FFicvbIsFQ==, tableContent=null), ArticleFig(id=1154049490790109622, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=CN, label=图5, caption=
Canny 算子实现效果, figureFileSmall=ZZSMmZMGAMjlE1b2qHKaNw==, figureFileBig=esdbsou83Hz9FFicvbIsFQ==, tableContent=null), ArticleFig(id=1154049490865607095, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 6, caption=
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不同算法随迭代次数变化的均方误差, figureFileSmall=AhR5C1iMgG0UTOYVP96R5w==, figureFileBig=BOqgNpjlLee/5g0F3zR0zQ==, tableContent=null), ArticleFig(id=1154049490999824825, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 7, caption=
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不同算法准确率对比效果, figureFileSmall=yc8ZQiVmQPbihC7xfN1arg==, figureFileBig=QURgckJWDnXJCS2OMo0x4A==, tableContent=null), ArticleFig(id=1154049491113071035, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 8, caption=
Comparative effect of recall rate for different algorithms, figureFileSmall=I3XPdvNESkK3Vh92LQLP6w==, figureFileBig=8YEOnO9Oi3UxBouGta+oWQ==, tableContent=null), ArticleFig(id=1154049491171791292, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=CN, label=图8, caption=
不同算法召回率对比效果, figureFileSmall=I3XPdvNESkK3Vh92LQLP6w==, figureFileBig=8YEOnO9Oi3UxBouGta+oWQ==, tableContent=null), ArticleFig(id=1154049491255677373, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154049452215095522, language=EN, label=Fig. 9, caption=
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