Panasonic Corporation

Yasutaka Maeda

Masami Funakura

Etsuko Kanai

Makiko Noda

A pulse wave detection device detects pulse wave data from a pulse wave obtained from a user. The pulse wave detection device includes: a pulse wave detection unit detecting the pulse wave data from the pulse wave; a pulse wave derivative unit calculating velocity plethysmogram data by temporally deriving the pulse wave data; a component extraction unit extracting maximum and minimum values in a current first time range of the velocity plethysmogram data, while shifting the current first time range in a time axis direction, the extraction being repeated in a next current first time range; a component ratio calculation unit calculating a component ratio the maximum and minimum values extracted for each current first time range; and a noise segment determination unit determining, as a noise segment, a segment in which component ratios calculated by the component ratio calculation unit are temporally inconstant.

Pulse wave detection device, device control device, and pulse wave detection method

Comfortable sensation of living bodies is estimated, considering individual differences in biological information on the living bodies staying or residing in a common space, and stimulation contents is properly controlled. A stimulation generator generates a stimulation to be applied to users. Biological information acquirers and acquire time-series data of biological information on the users. Parameter extractors and extract a parameter which is changed with a lapse of time by analyzing the time-series data. Thermal sensation estimators and estimate statuses of the users to the stimulation generated by the stimulation generator, based on the parameter extracted by the parameter extractors and. A multi-user thermal sensation processor integrates estimation results on the users estimated by the thermal sensation estimators and into a single estimation result. A stimulation controller controls the stimulation generator based on the integrated estimation result.

Environment control device, environment control method, environment control program, and environment control system

An environment control device, an environment control method, an environment control program, and a computer-readable recording medium containing the environment control program for enabling the user to actually have a comfortable feeling in a reliable manner and further to maintain such a comfortable state, are provided. A biological information measuring portion acquires time-series data of the biological information of the user. A chaos analysis portion calculates a parameter about the biological information through chaos analysis of the time-series data acquired by the biological information measuring portion. A state inferring portion infers a comfortable feeling of the user on the basis of the parameter calculated by the chaos analysis portion. A device control portion controls generation of a stimulus to be given to the user on the basis of the result of inference made by the state inferring portion.

Environment control device, environment control method, environment control program, and computer-readable recording medium containing the environment control program

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Osaka, Japan

Yasutaka Maeda