Abstract

Welfare environment is considered special care such as support to stand up, sit up, walk, take a medicine, etc. Therefore, it is usefulness that the welfare environment support customer by service robot and consider its mind. A analyze brain waves is a kind of mind understanding. However, big equipment is needed for accuracy. In this paper, authors research a possibility of diagnosis of stress by accelerated plethysmogram applied the criterion which combine two evaluation based on chaos theory; trajectory parallel measure method and size of neighborhood space in chaos attractor. And, it calculates time-series data of accelerated plethysmogram measured from forty-tester using proposed evaluations. The authors examine the result of its application to diagnose of stress. Finally, the authors examine that customer's vital information is usefulness to control a service robot and an environment of room based on an ambient Intelligence.

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