Physiological condition estimation device and vehicle control device
First Claim
1. A physiological condition estimation device comprising:
- an eye-open time acquiring unit that acquires an eye-open time of a target person;
a variation acquiring unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit; and
a physiological condition determining unit that determines a physiological condition of the target person on the basis of the variation in the eye-open time acquired by the variation acquiring unit,wherein the physiological condition determining unit determines a low arousal level condition before the arousal level is reduced to a value where the target person makes an error, andthe physiological condition determining unit determines the low arousal level condition on the basis of the variation in the eye-open time being less than a predetermined threshold value.
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Accused Products
Abstract
Provided are a physiological condition estimation device and a vehicle control device capable of preventing an error in the operation of an apparatus, such as a vehicle, and improving the safety of the operation of the apparatus. The physiological condition estimation device includes an eye-open time acquiring unit that acquires the eye-open time of the driver, a variation calculating unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit, and a drowsiness predicting unit that determines the physiological condition of the driver on the basis of the variation in the eye-open time acquired by the variation calculating unit. In this way, since the physiological condition is determined on the basis of the variation in the eye-open time, it is possible to detect a slight reduction in the arousal level and estimate a significant reduction in the arousal level to a value that will cause an error in the driving of the vehicle in the future.
20 Citations
27 Claims
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1. A physiological condition estimation device comprising:
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an eye-open time acquiring unit that acquires an eye-open time of a target person; a variation acquiring unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit; and a physiological condition determining unit that determines a physiological condition of the target person on the basis of the variation in the eye-open time acquired by the variation acquiring unit, wherein the physiological condition determining unit determines a low arousal level condition before the arousal level is reduced to a value where the target person makes an error, and the physiological condition determining unit determines the low arousal level condition on the basis of the variation in the eye-open time being less than a predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The physiological condition estimation device comprising:
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an eye-open time acquiring unit that acquires an eye-open time of a target person; a variation acquiring unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit; and a physiological condition determining unit that determines a physiological condition of the target person on the basis of the variation in the eye-open time acquired by the variation acquiring unit, wherein the physiological condition determining unit determines that the attentiveness is reduced before the target person reaches a drowsy condition, and the physiological condition determining unit determines the attentiveness reduction on the basis of the variation in the eye-open time being equal to or more than an attentiveness reduction threshold value. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A physiological condition estimation device comprising:
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an eye-open time acquiring unit that acquires an eye-open time of a target person; a variation acquiring unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit; and a physiological condition estimating unit that estimates a physiological condition of the target person on the basis of an amount of change of the variation in the eye-open time acquired by the variation acquiring unit with respect to time. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A physiological condition estimation device comprising:
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an eye-open time acquiring unit that acquires an eye-open time of a target person; a variation acquiring unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit; and a physiological condition change determining unit that determines a change in a physiological condition of the target person on the basis of the amount of change of the variation in the eye-open time acquired by the variation acquiring unit with respect to time. - View Dependent Claims (25, 26, 27)
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Specification