Article(id=1222925283523547633, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222925278838513745, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221045, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652716800000, receivedDateStr=2022-05-17, revisedDate=1655481600000, revisedDateStr=2022-06-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1769497708444, onlineDateStr=2026-01-27, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769497708444, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769497708444, creator=13701087609, updateTime=1769497708444, updator=13701087609, issue=Issue{id=1222925278838513745, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='2', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769497707328, creator=13701087609, updateTime=1769497707328, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=150, endPage=153, ext={EN=ArticleExt(id=1222925283871674888, articleId=1222925283523547633, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Monitoring of Tilt Deformation of Substation Column Supported by 3D Laser Point Cloud, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Columns are commonly used in water conservancy project to support the upper structure. In order to ensure the stability of the upper structure, it is necessary to monitor the deformation of the column to ensure that the inclination angle of the column is within the allowable range. The non-contact measurement and high-precision point cloud data acquisition was carried out by the total station scanner used waveform digital ranging technology. During the acquisition process, the three-dimensional coordinates of each observation station were calculated by the rear intersection method, and the observation data was unified into a coordinate system. Data registration avoided the transmission of observation errors. This paper proposed a method for calculating the tilt deformation of the column using the point cloud. After collecting the two phases of the point cloud data, the deformation was calculated based on the true pair of points, and the point and surface optimization algorithm was used to reduce the error, and the tilt angle of the column was calculated. Finally, a simulation test of the tilted deformation of the column was designed to verify the accuracy of the deformation calculation method. The test results show that the actual inclination angle is 0°16'49", the calculated inclination angle is 0°16'57", the algorithm error is less than 20', which meets the requirement of deformation monitoring in high-rise structure. Therefore, the deformation calculation method can be applied to the field of column tilt deformation monitoring.

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水利工程中常用立柱支撑上部结构,为保证上部结构稳定,需监测立柱变形,确保立柱倾斜角度在允许范围内。通过全站扫描仪的波形数字化测距技术进行非接触式测量,采集高精度点云数据,采集过程中通过后方交会法计算各观测站的三维坐标,将观测数据统一到一个坐标系统中,无需数据配准,避免了观测误差的传递。提出利用点云的立柱倾斜形变算法,采集两期点云数据后基于真配对点计算形变量,并通过点面优化算法减少误差,计算得到立柱的倾斜角度。为验证形变算法的精度,设计了仿真试验模拟立柱倾斜变形。试验结果发现,实际倾斜角为0°16'49″,计算倾斜角为0°16'57″,算法误差小于20″,满足高耸结构的变形监测要求。所提形变算法可应用于立柱倾斜变形监测领域。

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张晓春(1979-),女,博士、副教授、硕导,研究方向为全站扫描仪点云数据处理及水工建筑变形监测,Email:
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吴金波(1998-),男,硕士研究生,研究方向为水工建筑变形监测,E-mail:

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吴金波(1998-),男,硕士研究生,研究方向为水工建筑变形监测,E-mail:

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吴金波(1998-),男,硕士研究生,研究方向为水工建筑变形监测,E-mail:

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三维激光点云支持下的变电站立柱倾斜变形监测
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吴金波 1 , 张晓春 1 , 胡伟飞 2 , 陈俊涛 1
水电能源科学 | 水利水电工程 2023,41(2): 150-153
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水电能源科学 | 水利水电工程 2023, 41(2): 150-153
三维激光点云支持下的变电站立柱倾斜变形监测
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吴金波1 , 张晓春1 , 胡伟飞2, 陈俊涛1
作者信息
  • 1.武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉 430072
  • 2.国网浙江省电力有限公司紧水滩水力发电厂,浙江 丽水 323000
  • 吴金波(1998-),男,硕士研究生,研究方向为水工建筑变形监测,E-mail:

通讯作者:

张晓春(1979-),女,博士、副教授、硕导,研究方向为全站扫描仪点云数据处理及水工建筑变形监测,Email:
Monitoring of Tilt Deformation of Substation Column Supported by 3D Laser Point Cloud
Jin-bo WU1 , Xiao-chun ZHANG1 , Wei-fei HU2, Jun-tao CHEN1
Affiliations
  • 1.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • 2.Jinshuitan Hydropower Plant, State Grid Zhejiang Electric Power Co., Ltd., Lishui 323000, China
出版时间: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20221045
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水利工程中常用立柱支撑上部结构,为保证上部结构稳定,需监测立柱变形,确保立柱倾斜角度在允许范围内。通过全站扫描仪的波形数字化测距技术进行非接触式测量,采集高精度点云数据,采集过程中通过后方交会法计算各观测站的三维坐标,将观测数据统一到一个坐标系统中,无需数据配准,避免了观测误差的传递。提出利用点云的立柱倾斜形变算法,采集两期点云数据后基于真配对点计算形变量,并通过点面优化算法减少误差,计算得到立柱的倾斜角度。为验证形变算法的精度,设计了仿真试验模拟立柱倾斜变形。试验结果发现,实际倾斜角为0°16'49″,计算倾斜角为0°16'57″,算法误差小于20″,满足高耸结构的变形监测要求。所提形变算法可应用于立柱倾斜变形监测领域。

全站扫描仪  /  点云处理  /  后方交会法  /  孤立点云选取  /  倾斜变形

Columns are commonly used in water conservancy project to support the upper structure. In order to ensure the stability of the upper structure, it is necessary to monitor the deformation of the column to ensure that the inclination angle of the column is within the allowable range. The non-contact measurement and high-precision point cloud data acquisition was carried out by the total station scanner used waveform digital ranging technology. During the acquisition process, the three-dimensional coordinates of each observation station were calculated by the rear intersection method, and the observation data was unified into a coordinate system. Data registration avoided the transmission of observation errors. This paper proposed a method for calculating the tilt deformation of the column using the point cloud. After collecting the two phases of the point cloud data, the deformation was calculated based on the true pair of points, and the point and surface optimization algorithm was used to reduce the error, and the tilt angle of the column was calculated. Finally, a simulation test of the tilted deformation of the column was designed to verify the accuracy of the deformation calculation method. The test results show that the actual inclination angle is 0°16'49", the calculated inclination angle is 0°16'57", the algorithm error is less than 20', which meets the requirement of deformation monitoring in high-rise structure. Therefore, the deformation calculation method can be applied to the field of column tilt deformation monitoring.

total station scanner  /  point cloud processing  /  rear intersection method  /  isolated point cloud selection  /  tilt deformation
吴金波, 张晓春, 胡伟飞, 陈俊涛. 三维激光点云支持下的变电站立柱倾斜变形监测. 水电能源科学, 2023 , 41 (2) : 150 -153 . DOI: 10.20040/j.cnki.1000-7709.2023.20221045
Jin-bo WU, Xiao-chun ZHANG, Wei-fei HU, Jun-tao CHEN. Monitoring of Tilt Deformation of Substation Column Supported by 3D Laser Point Cloud[J]. Water Resources and Power, 2023 , 41 (2) : 150 -153 . DOI: 10.20040/j.cnki.1000-7709.2023.20221045
  • 国网浙江省电力有限公司集体企业科技项目(B2021001)
  • 武汉大学国家大学生创新创业训练计划(S202020603)
2023年第41卷第2期
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doi: 10.20040/j.cnki.1000-7709.2023.20221045
  • 接收时间:2022-05-17
  • 首发时间:2026-01-27
  • 出版时间:2023-02-25
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  • 收稿日期:2022-05-17
  • 修回日期:2022-06-18
基金
国网浙江省电力有限公司集体企业科技项目(B2021001)
武汉大学国家大学生创新创业训练计划(S202020603)
作者信息
    1.武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉 430072
    2.国网浙江省电力有限公司紧水滩水力发电厂,浙江 丽水 323000

通讯作者:

张晓春(1979-),女,博士、副教授、硕导,研究方向为全站扫描仪点云数据处理及水工建筑变形监测,Email:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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