Stressor sensor and stress management system
First Claim
1. A stressor detection system comprising:
- a sensor adapted to be attached to a person for obtaining a time-varying signal representing a first physical quantity relating to an environment of the person, anda processor which receives the time-varying signal from the sensor, compresses the time-varying signal to obtain a compressed signal, derives an amount of complexity included in the received signal by comparing the received signal and the compressed signal, and derives a first stressor value from the amount of complexity representing a degree to which the environment is inducing stress in the person, wherein signals with larger amounts of complexity derive a higher stressor value;
an output which provides feedback related to the stressor value.
1 Assignment
0 Petitions
Accused Products
Abstract
A stressor detection system (100) comprises sensor means (101) arranged for being attached to a person for obtaining a time-varying signal representing a physical quantity relating to an environment of the person, and processing means (102) for deriving a stressor value from the obtained signal representing a degree to which the environment is inducing stress in the person. The processing means is arranged for deriving an amount of complexity comprised in the signal, and for deriving a higher stressor value for a larger amount of information. The processing means is further arranged for performing a spectral frequency analysis of the signal and for deriving the stressor value also in dependence on the spectral frequency analysis. The sensor means comprises a microphone (105), a camera (104), and a tri-axial accelerometer.
16 Citations
19 Claims
-
1. A stressor detection system comprising:
-
a sensor adapted to be attached to a person for obtaining a time-varying signal representing a first physical quantity relating to an environment of the person, and a processor which receives the time-varying signal from the sensor, compresses the time-varying signal to obtain a compressed signal, derives an amount of complexity included in the received signal by comparing the received signal and the compressed signal, and derives a first stressor value from the amount of complexity representing a degree to which the environment is inducing stress in the person, wherein signals with larger amounts of complexity derive a higher stressor value; an output which provides feedback related to the stressor value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A stressor detection method, the method comprising:
-
receiving a time-varying signal representing a physical quantity relating to an environment of a person from a sensor; determining a size of the time-varying signal with a processor; compressing the time-varying signal to obtain a compressed signal with the processor; determining a size of the compress signal with the processor; determining a compression ratio by comparing the size of the time-varying signal to the size of the compress signal with the processor; deriving a stressor value from a time-varying signal with the processor, the stressor being based on the compression ratio; outputting the stressor value. - View Dependent Claims (16, 17, 18, 19)
-
Specification