Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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IFC Model Data Retrieval and Regeneration Method through Property Set-based Query Language

IFC 속성 데이터기반의 질의어 개발을 통한 모델 정보 검색 및 재생성 방안

  • Lee, Sang-Ho (School of Civil & Environmental Engineering, Yonsei University) ;
  • Park, Sang I. (School of Civil & Environmental Engineering, Yonsei University) ;
  • Jang, Young-Hoon (School of Civil & Environmental Engineering, Yonsei University) ;
  • Choi, Kyou-Won (School of Civil & Environmental Engineering, Yonsei University)
  • 이상호 (연세대학교 토목환경공학과) ;
  • 박상일 (연세대학교 토목환경공학과) ;
  • 장영훈 (연세대학교 토목환경공학과) ;
  • 최규원 (연세대학교 토목환경공학과)
  • Received : 2017.01.10
  • Accepted : 2017.02.03
  • Published : 2017.02.28
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Abstract

In this study, a query language was developed to supplement the information retrieval and model regeneration in the case of Industry Foundation Classes (IFC)-based civil infrastructure information models. First, the IFC objects to represent the structural components, entities to manage the related properties, and relationships to connect with the mentioned elements were analyzed in a point of information flow. The results confirmed that the end-users could have problems with access and comprehend the properties and its relationships in the IFC file. Second, the IfcPropertySet-focused query method and applicable stand-alone module were proposed referring to the previous Building Information Model Query Language (BimQL). The availabilities of the proposed method were examined using the rail and sleeper information models through information retrieval and model regeneration. The most important advantage of the proposed approach is the IFC-based information retrievals that can guarantee the interoperability between software packages.

본 연구에서는 Industry Foundation Classes (IFC)를 기반으로 토목 시설물 정보 모델을 생성하는 경우에 발생할 수 있는 정보 검색 및 모델 재생성의 어려운 점을 보완할 수 있는 질의어를 개발하였다. 이를 위하여 첫번째로, IFC에서 구조물을 나타내기 위한 요소와 속성을 다루는 부분, 그리고 이들을 연결해주는 요소의 관계를 분석하고 이에 따른 흐름을 분석하였다. 이를 통해 최종 사용자의 입장에서 IFC 파일 내에서의 속성, 객체 및 그에 따르는 연결에 대한 접근 및 파악이 매우 힘들 수 있음을 확인하였다. 둘째, 기존 Building Information Model Query Language (BimQL)의 방법을 참고하여 IfcPropertySet 중심의 질의 방식을 제시하고 이를 적용할 수 있는 독립 모듈을 개발하였다. 마지막으로 제시한 방법을 철도의 궤도 및 침목에 적용하여 사용자가 의도한 대로 효과적인 정보 추출 및 모델 재생성이 가능함을 확인하였다. 이러한 접근방법의 장점은 IFC 파일만을 대상으로 효과적인 정보의 검색이 가능하다는 점으로, 정보의 상호운용성의 이점을 극대화할 수 있다.

Keywords

References

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