Abstract: A biological state monitoring system (100) for monitoring a biological state of a subject on a bed (BD) over a predetermined monitoring period, includes: at least one load detector (11, 12, 13, 14) configured to detect a load of the subject on the bed; and a respiratory rate estimating unit (34) configured to successively obtain and output estimated values of a respiratory rate of the subject, based on a temporal variation of a detection value of the load detector. The monitoring period includes a body motion period in which the subject has a body motion, and a resting period in which the subject merely performs a respiration.

Abstract: A body motion determination system (100) configured to determine whether or not a subject (S) on a bed (BD) has a body motion includes: a plurality of load detectors (11, 12, 13, 14) each configured to detect the load of the subject on the bed; a respiratory waveform obtaining unit (32) configured to obtain a respiratory waveform of the subject based on a temporal variation of the load of the subject detected by each of the plurality of load detectors; and a body motion determining unit (33) configured to determine whether or not the subject has the body motion based on a comparison between a first threshold value and a standard deviation of the temporal variations in the load of the subject detected by at least one of the plurality of load detectors. The body motion determining unit is configured to compensate the standard deviation to be used in the comparison by an amplitude of the respiratory waveform.

Abstract: There is provided a biological state monitoring system for monitoring biological state of subject on a bed. The system includes at least one load detector and a controller. In a case that the controller determines that body motion is not twitch, the controller ceases to output estimated value of respiratory rate, or outputs first estimated value which is the latest among estimated values obtained in first period, the first period being directly preceding body motion and being determined by the controller to be a period in which subject has no body motion. In a case that the controller determines that body motion is twitch, the controller successively outputs newly obtained estimated values of respiratory rate.

Abstract: A biological state monitoring system (100) for monitoring a biological state of a subject on a bed (BD) over a predetermined monitoring period, includes: at least one load detector (11, 12, 13, 14) configured to detect a load of the subject on the bed; and a respiratory rate estimating unit (34) configured to successively obtain and output estimated values of a respiratory rate of the subject, based on a temporal variation of a detection value of the load detector. The monitoring period includes a body motion period in which the subject has a body motion, and a resting period in which the subject merely performs a respiration.

Abstract: A biological state monitoring system (100, 200) for monitoring a biological state of a subject on a bed (BD) includes: at least one load detector (11, 12, 13, 14) configured to detect a load of the subject on the bed; a body motion determining unit (33) configured to determine whether or not the subject has a body motion, based on a temporal variation of a detection value of the load detector; a respiratory rate estimating unit (34) configured to successively obtain and output estimated values of respiratory rate of the subject, based on the temporal variation of the detection value of the load detector; and a twitch determining unit (35) configured to determine whether or not a body motion is a twitch, based on a duration of the body motion of the subject.

Abstract: A sleeping/waking determining system (100) configured to determine whether a subject on a bed (BD) is in a sleeping state or in a waking state, includes: a load detector (11) configured to detect a load of the subject on the bed; and a determining unit (33) configured to determine whether the subject is in the sleeping state or in the waking state, based on a comparison between a threshold value and a value obtained by performing a time-integration of a standard deviation of a temporal variation of the load of the subject.

Abstract: A body motion determination system (100) configured to determine whether or not a subject (S) on a bed (BD) has a body motion includes: a plurality of load detectors (11, 12, 13, 14) each configured to detect the load of the subject on the bed; a respiratory waveform obtaining unit (32) configured to obtain a respiratory waveform of the subject based on a temporal variation of the load of the subject detected by each of the plurality of load detectors; and a body motion determining unit (33) configured to determine whether or not the subject has the body motion based on a comparison between a first threshold value and a standard deviation of the temporal variations in the load of the subject detected by at least one of the plurality of load detectors. The body motion determining unit is configured to compensate the standard deviation to be used in the comparison by an amplitude of the respiratory waveform.