Monitoring wellness using a wireless handheld device
AssigneeNtt Docomo, Inc.
InventorsAravind Kailas, Chia-Chin Chong, Fujio Watanabe
Life of this patent
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Abstract
A method for detecting a subject's stress level associated with an activity includes (a) connecting the subject to a sensor that senses a value of a biometric; (b) during the activity, (i) repeatedly sensing the value of the biometric over each of a plurality of time windows; and (ii) computing, for each time window, a deviation in the sensed values of the biometric; and (c) detecting the stress level based on the computed deviations. In one implementation, the value of the biometric is a skin temperature measurement. The method may be implemented as an application in a wireless handheld device, such as a cellular telephone.
Claims8
A method for detecting a subject's stress level associated with an activity, comprising:
- connecting the subject to a sensor that senses a value of a biometric;
- during the activity,
- repeatedly sensing the value of the biometric over each of a plurality of time windows;
- computing, for each time window, a difference between each sensed biometric value in the time window and an ambient value to determine a maximum difference for the time window and a minimum difference for the time window;
- computing, for each time window, a deviation, for the sensed biometric values in the time window by subtracting the time window's minimum difference from the time window's maximum difference;
- and
- detecting the stress level based on the computed deviations for the time windows, wherein detecting the stress level further comprises inferring a stress state transition from time window to time window based on a temporal Bayesian Network (TBN) model and corresponding computed deviations.
Dependencies are inferred from the claim text.