Abstract: A human fatigue assessment device capable of performing highly accurate fatigue assessment is provided. The human fatigue assessment device includes: a physiological signal measuring unit configured to measure a heartbeat or pulse wave of a user as a physiological signal; a feature value extracting unit configured to extract feature values each indicating amount of parasympathetic nerve activity and each obtained from the measured physiological signal measured; a storage unit in which the extracted feature values are stored; and a fatigue type determining unit configured to determine a type of fatigue of the user as to whether the fatigue of the user is due to a first work or due to a second work more monotonous than the first work, using the extracted feature values.

Abstract: A human fatigue assessment device capable of performing highly accurate fatigue assessment is provided. The human fatigue assessment device includes: a physiological signal measuring unit which measures a pulse wave signal of a user; a feature value extracting unit which extracts first feature values each of which is obtained from a systolic posterior component of the pulse wave signal measured by the physiological signal measuring unit; a storage unit in which the first feature values extracted by the feature value extracting unit are stored; and a fatigue determining unit which determines whether or not the user is fatigued, using the first feature values extracted by the feature value extracting unit, in which the fatigue determining unit compares a first feature value among the first feature values extracted by the feature value extracting unit and at least one of the first feature values stored in the storage unit, to determine whether or not the user is fatigued.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A human fatigue assessment device capable of performing highly accurate fatigue assessment is provided.

Abstract: A pulse wave detection device for detecting pulse wave data indicating a pulse wave of a user, the pulse wave detection device including: a pulse wave detection unit (1011) configured to detect, in time series, the pulse wave data indicating the pulse wave of the user; a pulse wave derivative unit (1012) configured to calculate time-series velocity plethysmogram data by temporally deriving the time-series pulse wave data detected by the pulse wave detection unit (1011); a component extraction unit (1013) configured to extract a maximum value and a minimum value in a current first time range in the time-series velocity plethysmogram data calculated by the pulse wave derivative unit (1012) 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 (1014) configured to calculate a component ratio which is a ratio of the maximum value and the minimum value extracted for each current first time range by

Abstract: A device control device for controlling an on-vehicle device based on a vital sign of a user, the device control device including: a vital sign measurement unit (101) configured to measure, in time series, the vital sign of the user; a parameter extraction unit (102) configured to extract time-series parameter values for evaluating current statuses of the user based on the vital sign measured continuously by the vital sign measurement unit (101); a determination unit (120) configured to determine whether a factor of a change in the vital sign is a change in a health condition of the user or a change in an environment temperature around the user, based on the parameter values extracted by the parameter extraction unit; and a control unit (130) configured to control the on-vehicle device based on a result of the determination made by the determination unit (120).

Abstract: 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.

Abstract: A control unit is provided which is capable of estimating a user's environment based on time and temperature before entering an air-conditioned room, and reflecting a result obtained from the estimation in the control of air-conditioning equipment.

Abstract: 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 300 generates a stimulation to be applied to users. Biological information acquirers 101a and 101b acquire time-series data of biological information on the users. Parameter extractors 102a and 102b extract a parameter which is changed with a lapse of time by analyzing the time-series data. Thermal sensation estimators 103a and 103b estimate statuses of the users to the stimulation generated by the stimulation generator 300, based on the parameter extracted by the parameter extractors 102a and 102b. A multi-user thermal sensation processor 105 integrates estimation results on the users estimated by the thermal sensation estimators 103a and 103b into a single estimation result.

Abstract: A control unit is provided which is capable of estimating a user's environment based on time and temperature before entering an air-conditioned room, and reflecting a result obtained from the estimation in the control of air-conditioning equipment.

Abstract: An operating condition determiner compares an operation starting time (t1) of network-connected first consuming apparatuses received by a schedule information receiver and a consumption starting time (t2) predicted by a predicting system based on a total consumption amount of the first consuming apparatuses and a second consuming apparatus, which is not network-connected, and determines the operation starting time (t1) as an operation starting time of a fuel cell if the operation starting time (t1) is earlier than the consumption starting time (t2) while determining the consumption starting time (t2) as such if the operation starting time (t1) is later than the consumption starting time (t2), so that the fuel cell can stably generate power. The fuel cell can stably supply power at a time when the consuming apparatuses start consuming power.

Abstract: An operating condition determiner compares an operation starting time (t1) of network-connected first consuming apparatuses received by a schedule information receiver and a consumption starting time (t2) predicted by a predicting system based on a total consumption amount of the first consuming apparatuses and a second consuming apparatus, which is not network-connected, and determines the operation starting time (t1) as an operation starting time of a fuel cell if the operation starting time (t1) is earlier than the consumption starting time (t2) while determining the consumption starting time (t2) as such if the operation starting time (t1) is later than the consumption starting time (t2), so that the fuel cell can stably generate power. The fuel cell can stably supply power at a time when the consuming apparatuses start consuming power.