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2019 Vol.32, Issue 1 Preview Page
RGB-Depth Camera for Dynamic Measurement of Liquid Sloshing

RGB-Depth 카메라를 활용한 유체 표면의 거동 계측분석

Junhee Kim1
,
Sae-Woung Yoo1
,
Kyung-Won Min1†
김 준 희1
,
유 세 웅1
,
민 경 원1†
1Department of Architectural Engineering, Dankook University, Yongin, 16890, Korea
1단국대학교 건축공학과
†Corresponding author: Tel: +82-31-8005-3690; E-mail: kwmin@dankook.ac.kr
2019. pp. 29-35
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Abstract

In this paper, a low-cost dynamic measurement system using the RGB-depth camera, Microsoft Kinect® v2, is proposed for measuring time-varying free surface motion of liquid dampers used in building vibration mitigation. Various experimental studies are conducted consecutively: performance evaluation and validation of the Kinect® v2, real-time monitoring using the Kinect® v2 SDK(software development kits), point cloud acquisition of liquid free surface in the 3D space, comparison with the existing video sensing technology. Utilizing the proposed Kinect® v2-based measurement system in this study, dynamic behavior of liquid in a laboratory-scaled small tank under a wide frequency range of input excitation is experimentally analyzed.

Keywords
microsoft kinect
RGB-depth camera
liauid dynamic behavior
video sensing
sloshing

본 논문에서는 건축물 진동저감장치에 적용되는 액체감쇠기 내 유체 자유표면의 동적 거동 계측을 위해 저가형 RGB-depth 센서인 Microsoft사 Kinect® v2의 활용과 계측시스템을 구축하는 방법을 제안하였다. Kinect® v2의 성능검토 및 실효성 확 인, SDK(software development kit)를 사용한 실시간 모니터링, 3D 공간상에서 유체의 표면 정보 취득, 기존 비디오 센싱기 법과의 비교를 통해 본 연구에서 제안한 유체의 동적 거동 계측 시스템의 정확성과 우수성을 검증하였다. 제안된 계측시스 템을 활용하여 소형 수조 내 액체에 대한 동적 거동 정밀계측을 수행하였으며, 이를 바탕으로 광범위한 가진입력에 대한 유 체 자유표면의 동적 거동 특징을 확인하였다. 본 연구의 결과를 바탕으로 RGB-depth센서의 건축물 진동저감 적용을 통해 정밀한 모니터링 시스템을 구축하고 최적화된 액체감쇠기의 설계 및 운용을 기대할 수 있다.

키워드
마이크로소프트 키넥트
깊이-색상 카메라
유체 동적 거동
비디오센싱
슬로싱
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Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 32
  • No :1
  • Pages :29-35
  • Received Date : 2018-10-12
  • Revised Date : 2018-11-06
  • Accepted Date : 2018-11-07
  • DOI :https://doi.org/10.7734/COSEIK.2019.32.1.29
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