Apparatus and method for estimating fatigue level

Details Apparatus and method for estimating fatigue level Apparatus and method for estimating fatigue level

2006-08-08

2006-08-08

Wu, Daniel (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S574000, C340S575000, C340S576000, C600S300000, C600S301000, C600S484000

Reexamination Certificate

active

07088250

ABSTRACT:
A fatigue-level estimation apparatus is provided. The apparatus comprises a heat rate calculator and a fatigue level estimator. The heart rate calculator receives a signal indicative of a heartbeat of an object to be estimated to calculate a heart rate signal changing sequentially in time. The fatigue level estimator estimates a fatigue level of the object by detecting a sharp and transient rise in the heartbeat in the heart rate signal. The fatigue-level estimation has less influence resulting from individual differences, while still maintaining high reliability in the estimation.

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