Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Sensor Module for Detecting Postural Change and Falls

  • Jeon, G.R. (Department of Biomedical Engineering, School of Medicine, Pusan National University) ;
  • Ahn, S.J. (Department of Occupational Therapy, Inje University) ;
  • Shin, B.J. (Department of Applied Information Technology & Engineering, Pusan National University) ;
  • Kang, S.C. (Department of Biomedical Engineering, Tongmyung University) ;
  • Kim, J.H. (Department of Computer Simulation, Inje University)
  • Received : 2014.10.01
  • Accepted : 2014.11.22
  • Published : 2014.11.30
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Abstract

In this study, a postural change detection sensor module (PCDSM) was developed to detect postural changes in activities of daily living (ADL) and falls. The PCDSM consists of eight mercury sensors that measure angle variations in $360^{\circ}$ rotation and $90^{\circ}$ tilting. From the preliminary study, the output characteristics of the PCDSM were confirmed with the angle variations of rotational motion and a tilting table. Three experiments were conducted to test rotational motion, postural changes, and falling and lying. The results confirmed that the PCDSM could effectively detect postural changes, movement patterns, and falls or non-falls.

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References

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