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http://dx.doi.org/10.5369/JSST.2007.16.6.467

Posture and activity monitoring using a 3-axis accelerometer  

Jeong, Do-Un (Division of Computer Information Engineering, Dongseo University)
Chung, Wan-Young (Division of Computer Information Engineering, Dongseo University)
Publication Information
Journal of Sensor Science and Technology / v.16, no.6, 2007 , pp. 467-474 More about this Journal
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
Keywords
activity quantity; accelerometer; sensor network; recognition algorithm;
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Times Cited By KSCI : 2  (Citation Analysis)
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