A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures
In this paper, we propose a vision-based rotational angle measurement system for large-scale civil structures. Despite the fact that during the last decade several rotation angle measurement systems were introduced, they however often required complex and expensive equipment. Therefore, alternative...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2012-05-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/12/6/7326 |
| _version_ | 1798038995690586112 |
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| author | Jong-Jae Lee Jong-Han Lee Hoai-Nam Ho |
| author_facet | Jong-Jae Lee Jong-Han Lee Hoai-Nam Ho |
| author_sort | Jong-Jae Lee |
| collection | DOAJ |
| description | In this paper, we propose a vision-based rotational angle measurement system for large-scale civil structures. Despite the fact that during the last decade several rotation angle measurement systems were introduced, they however often required complex and expensive equipment. Therefore, alternative effective solutions with high resolution are in great demand. The proposed system consists of commercial PCs, commercial camcorders, low-cost frame grabbers, and a wireless LAN router. The calculation of rotation angle is obtained by using image processing techniques with pre-measured calibration parameters. Several laboratory tests were conducted to verify the performance of the proposed system. Compared with the commercial rotation angle measurement, the results of the system showed very good agreement with an error of less than 1.0% in all test cases. Furthermore, several tests were conducted on the five-story modal testing tower with a hybrid mass damper to experimentally verify the feasibility of the proposed system. |
| first_indexed | 2024-04-11T21:47:50Z |
| format | Article |
| id | doaj.art-6d0a0fcd2090403fa6dc992f11b0eaf2 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:47:50Z |
| publishDate | 2012-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6d0a0fcd2090403fa6dc992f11b0eaf22022-12-22T04:01:21ZengMDPI AGSensors1424-82202012-05-011267326733610.3390/s120607326A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil StructuresJong-Jae LeeJong-Han LeeHoai-Nam HoIn this paper, we propose a vision-based rotational angle measurement system for large-scale civil structures. Despite the fact that during the last decade several rotation angle measurement systems were introduced, they however often required complex and expensive equipment. Therefore, alternative effective solutions with high resolution are in great demand. The proposed system consists of commercial PCs, commercial camcorders, low-cost frame grabbers, and a wireless LAN router. The calculation of rotation angle is obtained by using image processing techniques with pre-measured calibration parameters. Several laboratory tests were conducted to verify the performance of the proposed system. Compared with the commercial rotation angle measurement, the results of the system showed very good agreement with an error of less than 1.0% in all test cases. Furthermore, several tests were conducted on the five-story modal testing tower with a hybrid mass damper to experimentally verify the feasibility of the proposed system.http://www.mdpi.com/1424-8220/12/6/7326rotation anglevision-based systemdisplacement measurementflexible structures |
| spellingShingle | Jong-Jae Lee Jong-Han Lee Hoai-Nam Ho A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures Sensors rotation angle vision-based system displacement measurement flexible structures |
| title | A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures |
| title_full | A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures |
| title_fullStr | A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures |
| title_full_unstemmed | A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures |
| title_short | A Vision-Based Dynamic Rotational Angle Measurement System for Large Civil Structures |
| title_sort | vision based dynamic rotational angle measurement system for large civil structures |
| topic | rotation angle vision-based system displacement measurement flexible structures |
| url | http://www.mdpi.com/1424-8220/12/6/7326 |
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