The Journal of the Korea Contents Association (한국콘텐츠학회논문지)

The Korea Contents Association (한국콘텐츠학회)
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Development of Structure Dynamic Characteristics Analysis System Prototype using Image Processing Technique

영상처리기법을 이용한 구조물 동특성 분석 시스템 프로토타입 개발

  • 조병완 (한양대학교 건설환경공학과) ;
  • 이윤성 (한양대학교 건설환경공학과) ;
  • 김정훈 (한양대학교 건설환경공학과) ;
  • 김도근 (한양대학교 건설환경공학과) ;
  • 윤광원 (서울시 안전총괄본부 안전총괄과)
  • Received : 2015.08.26
  • Accepted : 2015.11.06
  • Published : 2016.03.28
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Abstract

Recently, structure safety management techniques using cutting-edge technology(Displacement senor, sensor of acceleration) has emerged as an important issue owing to the aging of infrastructure such as bridge and building. In general, the structural monitoring system for structure safety management is based on IT technology and it is expensive to install. In this paper developed an image-based structure dynamic characteristic analysis system prototype to assess the damage of structure in a more cost-effective way than traditional structure health monitoring system. The inspector can take a video of buildings or other structures with digital camera or any other devices that is passible to take video, and then using NCC calculation for image processing technique to get natural frequency. This system is analysis of damage of the structure using a compare between the frequency response ratio and functions when problems are occurs send alarm to administrator. This system is easier to install and remove than previous monitoring sensor in economical way.

최근 건축물과 교량 등 사회기반시설물들의 노후화로 인해 변위센서, 가속도센서 등 첨단 기술을 이용한 구조물 안전관리 기법이 중요한 이슈로 부각되고 있다. 일반적으로 구조물의 안전관리를 위한 구조 건전성 모니터링 기술은 IT와 계측센서 기반으로 이러한 시스템을 구축하기 위해서는 많은 비용이 소요된다. 본 논문에서는 기존 계측센서 기반의 구조 건전성 모니터링 시스템에 비해 보다 경제적이고 효과적인 방법으로 구조물의 변위와 고유진동수를 추정하여 손상도를 평가하는 영상 기반의 구조물 동특성 분석 시스템을 개발하였다. 본 논문에서 개발한 시스템은 디지털 카메라와 같은 영상장치를 이용하여 구조물의 영상을 촬영하고, 영상처리를 위해 주로 사용되고 있는 정규상호상관기법인 NCC연산을 통해 변위와 고유 진동수를 분석하고, 구조물의 손상전후의 주파수응답비를 비교분석하여 손상도를 판별하여 문제가 발생 시 관리자에게 경보하는 기능을 지원한다. 본 시스템은 기존의 구조물에 부착하거나 고정해서 사용하는 계측 센서에 비해 설치 및 이동이 간편하고, 시스템이 단순하여 경제적이며 활용성이 높은 장점이 있다.

Keywords

References

  1. J. H. Lee, S. J. Cho, and S. H. Sim, "Vision-Based Displacement Measurement System Operable at Arbitrary Positions," Journal of the Korea Institute for Structural Maintenance and Inspection, Vol.18, No.6, pp.123-130, 2014. https://doi.org/10.11112/jksmi.2014.18.6.123
  2. J. H. Lee, J. H. Kim, W. M. Jeong, and J. W. Chae, "Vision-Based Dynamic Motion Measurement of a Floating Structure Using Multiple Targets under Wave Loadings," Journal of the Korean Society of Civil Engineers, Vol.32, No.14, pp.19-30, 2012.
  3. S. W. Kim and N. S. Kim, "Multi-point Dynamic Displacement Measurements of Structures Using Digital Image Correlation Technique," Journal of the Korean Geotechnical Society, Vol.13, No.3, pp.11-19, 2009.
  4. J. C. Park, J. S. Cho, H. B. Gil, and J. I. Shin, "Vision-Based Technology for Structural Health Monitoring of Bridge," Magazine of the Korea Institute for Structural Maintenance and Inspection, Vol.18, No.2, pp.10-16, 2014.
  5. J. Y. Kim and Y. H. Cho, "Development of Crack Detection Program on Asphalt Pavement," Journal of the Korean Society of Civil Engineers, Vol.22, No.4-D, pp.639-647, 2002.
  6. J. S. Cho and Y. Huh, "Image Processing Technique for Measuring the Static Displacement of Bridges from General Inspection Photograph," Journal of the Korean Society of Civil Engineers, Vol.31, No.3A, pp.173-180, 2011.
  7. S. J. Cho, S. H. Sim and E. S. Kim, "On-Site Performance Evaluation of a Vision-based Displacement Measurement System," Journal of the Korea Academia-Industrial Cooperation Society, Vol.15, No.9, pp.5854-5860, 2014. https://doi.org/10.5762/KAIS.2014.15.9.5854
  8. J. P. Lewis, "Fast Normalized Cross-Correlation," Vision Interface, pp.120-123, 1995.
  9. T. W. Choi, H. C. Lee, G. T. Hur, and E. S. Kim, "Robust Threshold Determination on Various Lighting for Marker-based Indoor Navigation," Journal of the Korea Contents Association, Vol.12, No.1, pp.1-8, 2012. https://doi.org/10.5392/JKCA.2012.12.01.001
  10. C. E. Shannon, "A Mathematical Theory of Communication," Reprinted with corrections from The Bell System Technical Journal, Vol.27, pp.379-423, pp.623-656, 1948.
  11. J. M. Ko and Y. Q. Ni, "Technology Developments in Structural Health Monitoring of Large-Scale Bridges," Journal of the Engineering Structures, Vol.27, No.12, pp.1715-1725, 2005. https://doi.org/10.1016/j.engstruct.2005.02.021
  12. S. S. Ahn and I. K. Lee, "Consideration of Dynamic Serviceability Assessment of Bridges," Magazine of Korean Society of Steel Construction, Vol.15, No.4, pp.84-89, 2003.
  13. S. W. Yoon and Y. K. Ju, "Natural Frequency d Tall Building Through Ambient Vibration Measurement," Journal of Korean Society of Steel Construction, Vol.15, No.2, pp.117-124, 2003.
  14. S. W. Yoon and Y. Park, "Comparison of Natural Frequency of Domestic and Foreign Long-Spaned Structure," Journal of the Korean Association for Spatial Structures, Vol.9, No.1, pp.79-85, 2009.
  15. J. H. Jeong, H. J. Kim, and S. Y. Choi, "Comparsion of Design Code Damping Formulae and Measured Damping Ratios of Tall Buildings under Wind Loads," Journal of the Architectural Institute of Korea, Vol.29, No.4, pp.11-18, 2013.
  16. Y. J. Kim and D. H. Kim, "Smart Phone Based Image Processing Methods for Motion Detection of a Moving Object via a Network Camera," Journal of Institute of Control, Robotics and Systems, Vol.19, No.1, pp.65-71, 2013. https://doi.org/10.5302/J.ICROS.2013.19.1.065
  17. C. E. Willer and M. Gharib, "Digital Particle Image Velocimetry," Journal of Experiments in Fluids, Vol.10, No.4, pp.181-193, 1991. https://doi.org/10.1007/BF00190388
  18. G. X. Ritter and J. N. Wilson, "Handbook of Computer Vision Algorithms in Image Algebra," CRC Press, 2000.
  19. S. Kwon, C. H. Lee, J. H. Lee, B. I. Moon, and Y. H. Lee, "Efficient Hardware Architecture for Fast Image Similarity Calculation," Journal of the Institute of Electronics and Information Engineers, Vol.48, No.4, 2011.
  20. A. M. Fincham and G. R. Spedding, "Low cost, High Resolution DPIV for Measurement of Turbulent Fluid Flow," Journal of Experiments in Fluids, Vol.23, Issue 6, pp.449-462, 1997. https://doi.org/10.1007/s003480050135
  21. K. K. Yu, D. S. Kim, and B. M. Yoon, "Development of Fast and Exact FFT Algorithm for Cross-Correlation PIV," Journal of the Korea Water Resources Association, Vol.38, No.10, pp.851-859, 2005. https://doi.org/10.3741/JKWRA.2005.38.10.851
  22. J. T. Kim, J. H. Park, D. S. Hong, and W. B. Na, "Hybrid Damage Monitoring Scheme of PSC Girder Bridges using Acceleration and Impedance Signature," Journal of the Korean Society of Civil Engineers, Vol.28, No.1A, pp.135-146, 2008.
  23. J. S. Bendat and A. G. Piersol, "Engineering applications of correlation and spectral analysis," Wiley, USA, 1993.
  24. T. Marwala and P. S. Heyns, "New Criteria comparing frequency response functions," R&D Journal, Vol.14, No.3, pp.49-55, 1998.
  25. J. M. Lee, An Experimental Study on Bending Vibration Response and Impedance Response of Anchor Plate Characteristics on PSC Girder by Prestress-loss, Master's Degree Thesis, Pukyong National University, 2008.
  26. D. S. Hnng and J. T. Kim, "Sturctural Health Monitoring of Full-Scale Concrete Girder Bridge using Acceleration Response," Magazine of the Korea Institute for Structural Maintenance and Inspection, Vol.14, No.1, pp.165-174, 2010.
  27. H. Sohn and Charles R. Farrar, "Statistical Process Control and Projection Techniques for Structural Health Monitoring," Proceedings of the European COST F3 Conference on System Identification and Structural Health Monitoring, Madrid, Spain. 2000.
  28. M. L. Fugate, H. Sohn, and C. R. Farrar, "Vibration-based damage detection using statistical process control," Mechanical Systems and Signal Processing, Vol.15, No.4, pp.707-721, 2001. https://doi.org/10.1006/mssp.2000.1323
  29. D. S. Hnng and J. T. Kim, "Vibration-based Damage Monitoring Scheme of Steel Girder Bolt-Connection Member by using Wireless Acceleleration Sensor Node," Journal of the Computational Structural Engineering Institute of Korea, Vol.25, No.1, pp.81-89, 2012. https://doi.org/10.7734/COSEIK.2012.25.1.081
  30. J. H. Park, J. T. Kim, and S. Y. Le, "Performance Evaluation of Imote2-Platformed Wireless Smart Sensor Node for Health Monitoring of Harbor Structures," Journal of Korean Society of Coastal and Ocean Engineers, Vol.23, No.1, pp.26-33, 2011. https://doi.org/10.9765/KSCOE.2011.23.1.026
  31. J. B. Lee, A Study on the Improvement for the INSERT NUT Insertion of Cellular Phone Cases Injection using 6 Sigma Method, Master's Degree Thesis, Inha University, 2010.
  32. M. G. Hwang, D. M. Kim, and D. W. Har, "Extraction of Subject Size in Still Image Using Floor Pattern," Journal of the Korea Contents Association, Vol.11, No.4, pp.11-17, 2014. https://doi.org/10.5392/JKCA.2011.11.4.011