Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Posture and activity monitoring using a 3-axis accelerometer

3축 가속도 센서를 이용한 자세 및 활동 모니터링

  • Jeong, Do-Un (Division of Computer Information Engineering, Dongseo University) ;
  • Chung, Wan-Young (Division of Computer Information Engineering, Dongseo University)
  • 정도운 (동서대학교 컴퓨터정보공학부) ;
  • 정완영 (동서대학교 컴퓨터정보공학부)
  • Published : 2007.11.30
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Abstract

The real-time monitoring about the activity of the human provides useful information about the activity quantity and ability. The present study implemented a small-size and low-power acceleration monitoring system for convenient monitoring of activity quantity and recognition of emergent situations such as falling during daily life. For the wireless transmission of acceleration sensor signal, we developed a wireless transmission system based on a wireless sensor network. In addition, we developed a program for storing and monitoring wirelessly transmitted signals on PC in real-time. The performance of the implemented system was evaluated by assessing the output characteristic of the system according to the change of posture, and parameters and acontext recognition algorithm were developed in order to monitor activity volume during daily life and to recognize emergent situations such as falling. In particular, recognition error in the sudden change of acceleration was minimized by the application of a falling correction algorithm

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References

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