Biological information measurement device and system

Abstract

According to one embodiment, a biological information measurement device includes: a biological information measurer configured to carry out intermittent measurement of biological information of a user; a motion information measurer configured to measure motion information of the user; a feature calculator configured to calculate a feature from the motion information; a behavior state determiner configured to determine a behavior state of the user on the basis of the feature; and a measurement interval controller configured to select one intermittent measurement from a plurality of intermittent measurements having different measurement intervals on the basis of the determined behavior state of the user and control the biological information measurer.

1 . A biological information measurement device comprising:
 a biological information measurer configured to carry out intermittent measurement of biological information of a user;   a motion information measurer configured to measure motion information of the user;   a behavior state determiner configured to determine a behavior state of the user on the basis of the motion information; and   a measurement interval controller configured to control a measurement interval of the intermittent measurement based on the behavior state.   
     
     
         2 . The device according to  claim 1 , comprising:
 the behavior state determiner determines whether the user is awake or sleeping on the basis of the motion information; and   the measurement interval controller controls the measurement interval of the intermittent measurement based on a result of determination of whether the user is awake or sleeping.   
     
     
         3 . The device according to  claim 2 , wherein the measurement interval controller determines a first measurement interval if the user is awake, determines a second measurement interval if the user is sleeping, the second measurement interval is shorter than the first measurement interval. 
     
     
         4 . The device according to  claim 3 , wherein the second measurement interval is equal to or less than ten seconds. 
     
     
         5 . The device according to  claim 1 , wherein the biological information is SpO 2 . 
     
     
         6 . The device according to  claim 5 , wherein the biological information measurer further includes a pulse wave measurer configured to carry out intermittent measurement of a pulse wave of the user, and a measurement interval of the pulse wave and the measurement interval of SpO 2  are independent from each other. 
     
     
         7 . The device according to  claim 6 , further comprising:
 a ring-like band having a bellows portion formed in a shape of bellows adapted to be extended and contracted;   the biological information measurer being provided on an inner circumference of the band.   
     
     
         8 . The device according to  claim 7 , wherein the bellows portion has a wiring connection provided such that the wiring connection is inclined with respect to a direction of extension and contraction. 
     
     
         9 . A biological information measurement device comprising:
 an SpO 2  measurer configured to carry out intermittent measurement of SpO 2  of a user;   a motion information measurer configured to measure motion information of the user;   a behavior state determiner configured to determine a behavior state of the user on the basis of the motion information;   a reference value acquirer configured to acquire a reference value of the SpO 2  of the user during a first period in which the behavior state indicates that the user is in a shallow sleep or during a second period in which the behavior state indicates that a body motion amount of the user is equal to or smaller than a predetermined value, wherein   the SpO 2  measurer calculates variation of the SpO 2  with respect to the reference value after the reference value is acquired.   
     
     
         10 . The device according to  claim 9 , wherein the variation of the SpO 2  is a decrease rate of the SpO 2 . 
     
     
         11 . The device according to  claim 10 , the SpO 2  measurer calculates the decrease rate of the SpO 2  during a period in which the user is sleeping.