Delta Tooling Co., Ltd.

Computer Convenience Inc.

Bio-complex System Research Institute

Tiejun Miao

Toshiyuki Shimizu

Etsunori Fujita

Yumi Ogura

Naoki Ochiai

Yasunori Noto

Wasei Miyazaki

Hideyuki Asaoka

Gesshi Higashida

There are provided a monitor for monitoring a human condition of a driver, and an awakening device for awakening a driver, which starts operation when received a predictive signal for fall-asleep being a signal for energy metabolism transition from an active state into a sleep state. The awakening device is structured to stimulate a pressure sense of the driver by reclining a seat back of a driver seat forward or rearward to thereby cause a shift force. Accordingly, without regard to an alarm reaction level to an alarm sound, it is possible to stimulate the driver and whereby awaken the driver more surely.

Driver seat system and awakening device

A human condition evaluation system, of which bio-signal analysis means includes a bio-signal peak value detection means for detecting a peak value for each cycle of an original waveform of a bio-signal data, and a power value calculation means for calculating a difference between the peak value at an upper limit side and the peak value at a lower limit side for every prescribed time range using respective peak values obtained by the bio-signal peak value detection means to thereby set the difference as a power value, is structured to determine a predictive signal for falling asleep from an active state into a sleep state. Different from conventional human condition evalution based simply on a Lyapunov exponent as an indicator, a new human condition evaluation system based on a functional status of an energy generation system of the living body is provided.

Human condition evaluation system, computer program, and computer-readable record medium

A method of judging a biological state comprising using: (1) correlation and/or symmetry between Lyapunov exponent and entropy; and/or (2) Higuchi fractal dimension, wherein the Lyapunov exponent, entropy and Higuchi fractal dimension are indices that can express chaotic nature and derived from time series data of biological signals from a subject.

Efficacy of biological state and action affecting biological state, judging apparatus, judging system, judging program and recording medium holding the program

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Fukuoka, Japan

Tiejun Miao