한국콘텐츠학회논문지 (The Journal of the Korea Contents Association)

  • 제16권3호
  • /
  • Pages.11-21
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  • 2016
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  • 1598-4877(pISSN)
  • /
  • 2508-6723(eISSN)
한국콘텐츠학회 (The Korea Contents Association)
권호 표지
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영상처리기법을 이용한 구조물 동특성 분석 시스템 프로토타입 개발

Development of Structure Dynamic Characteristics Analysis System Prototype using Image Processing Technique

  • 조병완 (한양대학교 건설환경공학과) ;
  • 이윤성 (한양대학교 건설환경공학과) ;
  • 김정훈 (한양대학교 건설환경공학과) ;
  • 김도근 (한양대학교 건설환경공학과) ;
  • 윤광원 (서울시 안전총괄본부 안전총괄과)
  • 투고 : 2015.08.26
  • 심사 : 2015.11.06
  • 발행 : 2016.03.28
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초록

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.

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.

키워드

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