센서학회지 (Journal of Sensor Science and Technology)

  • 제32권5호
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  • Pages.307-312
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  • 2023
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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수중 유속 및 유향의 동시 측정을 위한 이미지 분석 기술에 관한 연구

Image Analysis for the Simultaneous Measurement of Underwater Flow Velocity and Direction

  • 서동민 (세명대학교 전기공학과) ;
  • 오상우 (선박해양플랜트연구소 해양공공디지털연구본부) ;
  • 변성훈 (선박해양플랜트연구소 해양공공디지털연구본부)
  • Dongmin Seo (Department of Electrical Engineering, Semyung University) ;
  • Sangwoo Oh (Ocean and Maritime Digital Technology Research Division, Korea Research Institute of Ships & Ocean Engineering) ;
  • Sung-Hoon Byun (Ocean and Maritime Digital Technology Research Division, Korea Research Institute of Ships & Ocean Engineering)
  • 투고 : 2023.09.07
  • 심사 : 2023.09.19
  • 발행 : 2023.09.30
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초록

To measure the flow velocity and direction in the near field of an unmanned underwater vehicle, an optical measurement unit containing an image sensor and a phosphor-integrated pillar that mimics the neuromasts of a fish was constructed. To analyze pillar movement, which changes with fluid flow, fluorescence image analysis was conducted. To analyze the flow velocity, mean force analysis, which could determine the relationship between the light intensity of a fluorescence image and an external force, and length-force analysis, which could determine the distance between the center points of two fluorescence images, were employed. Additionally, angle analysis that can determine the angles at which pixels of a digital image change was selected to analyze the direction of fluid flow. The flow velocity analysis results showed a high correlation of 0.977 between the external force and the light intensity of the fluorescence image, and in the case of direction analysis, omnidirectional movement could be analyzed. Through this study, we confirmed the effectiveness of optical flow sensors equipped with phosphor-integrated pillars.

키워드

과제정보

본 논문은 해양수산부 재원으로 선박해양플랜트연구소의 기본사업인 "수중환경 모니터링을 위한 스마트센서 기반기술 개발"에 의해 수행되었습니다(PES4830).

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