PWS & PHA: posture web server and posture history archiver

  • Authors:
  • Yasuhiko Ooe;Kentaro Yamasaki;Tsukasa Noma

  • Affiliations:
  • Kyushu Institute of Technology, Fukuoka, Japan;Kyushu Institute of Technology, Fukuoka, Japan;Kyushu Institute of Technology, Fukuoka, Japan

  • Venue:
  • Proceedings of the the 1st ACM workshop on Continuous archival and retrieval of personal experiences
  • Year:
  • 2004

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Abstract

Our physical experiences are best represented by body movements. Many limitations of existing systems/devices, however, prevent their use in archival of daily experiences. This paper proposes an integrated systemcomposed of PWS (Posture Web Server) and PHA (Posture History Archiver); The PWS has a palm-size controller and 15 light-weight tilt sensor devices, newly developed by us. The feature of our tilt device lies in measurement of 360 degrees inclinations in two directions. The PWS is worn by a user, and always monitors his/her body posture. It acts as a posture web server, that is, it sends his/her current postural data upon request via a wireless network.The PHA running on a PC sends requests to PWS periodically via a network, and then archives a time series of his/her postures called posture history. The whole/part of the history can be visualized depending on his/her preferences. In this paper, system design issues, development of tilt sensor devices, implementation, and our experimental results are described.