전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제58권10호
  • /
  • Pages.2071-2078
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  • 2009
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

복부 움직임에 따른 초음파 근접센서를 이용한 호흡측정에 관한 연구

Abdominal Wall Motion-Based Respiration Rate Measurement using An Ultrasonic Proximity Sensor

  • 민세동 (연세대 공대 전기전자공학과) ;
  • 김진권 (연세대 공대 전기전자공학과) ;
  • 신항식 (연세대 공대 전기전자공학과) ;
  • 윤용현 (연세대 공대 전기전자공학과) ;
  • 이충근 (연세대 공대 전기전자공학과) ;
  • 이정환 (건국대 공대 의학공학부) ;
  • 이명호 (연세대 공대 전기전자공학과)
  • 발행 : 2009.10.01
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초록

In this paper, we proposed a non-contact respiration measurement system with ultrasonic proximity sensor. Ultrasonic proximity sensor approach of respiration measurement which respiration signatures and rates can be derived in real-time for long-term monitoring is presented. 240 kHz ultrasonic sensor has been applied for the proposed measurement system. The time of flight of sound wave between the transmitted signal and received signal have been used for a respiration measurement from abdominal area. Respiration rates measured with the ultrasonic proximity sensor were compared with those measured with standard techniques on 5 human subjects. Accurate measurement of respiration rate is shown from the 50 cm measurement distance. The data from the method comparison study is used to confirm the performance of the proposed measurement system. The current version of respiratory rate detection system using ultrasonic can successfully measure respiration rate. The proposed measurement method could be used for monitoring unconscious persons from a relatively close range, avoiding the need to apply electrodes or other sensors in the correct position and to wire the subject to the monitor. Monitoring respiration using ultrasonic sensor offers a promising possibility of non-contact measurement of respiration rates. Especially, this technology offers a potentially inexpensive implementation that could extend applications to consumer home-healthcare and mobile-healthcare products. Further advances in the sensor design, system design and signal processing can increase the range of the measurement and quality of the rate-finding for broadening the potential application areas of this technology.

키워드

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