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http://dx.doi.org/10.7472/jksii.2012.13.4.23

Fall Detection for Mobile Phone based on Movement Pattern  

Vo, Viet (전남대학교 전자컴퓨터공학과)
Hoang, Thang Minh (전남대학교 전자컴퓨터공학과)
Lee, Chang-Moo (전남대학교 전자컴퓨터공학과)
Choi, Deok-Jai (전남대학교 전자컴퓨터공학과)
Publication Information
Journal of Internet Computing and Services / v.13, no.4, 2012 , pp. 23-31 More about this Journal
Abstract
Nowadays, recognizing human activities is an important subject; it is exploited widely and applied to many fields in real-life, especially in health care and context aware application. Research achievements are mainly focused on activities of daily living which are useful for suggesting advises to health care applications. Falling event is one of the biggest risks to the health and well-being of the elderly especially in independent living because falling accidents may be caused from heart attack. Recognizing this activity still remains in difficult research area. Many systems equipped wearable sensors have been proposed but they are not useful if users forget to wear the clothes or lack ability to adapt themselves to mobile systems without specific wearable sensors. In this paper, we develop a novel method based on analyzing the change of acceleration, orientation when the fall occurs and measure their similarity to featured fall patterns. In this study, we recruit five volunteers in our experiment including various fall categories. The results are effective for recognizing fall activity. Our system is implemented on G1 smart phone which are already plugged accelerometer and orientation sensors. The popular phone is used to get data from accelerometer and results showthe feasibility of our method and significant contribution to fall detection.
Keywords
activity recognition; falling event; context aware; accelerometer sensor; orientation sensor;
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