DOZING PREVENTION METHOD, AND DOZING PREVENTION DEVICE
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Abstract
A method for preventing dozing off, comprising the steps of: a measurement step measuring human heartbeats; a decision step (S4 to S8) generating a trigger, hereinafter referred to as a “drowsiness trigger”, for indicating occurrence of drowsiness when a state in which a time interval between adjacent heartbeats, hereinafter referred to as a “heartbeat interval”, is longer than the previous heartbeat interval consecutively occurs; and a warning step (S9) giving a warning to prevent dozing off when the drowsiness trigger is generated.
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Citations
34 Claims
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1-14. -14. (canceled)
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15. A method for preventing dozing off, comprising the steps of:
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a measurement step measuring human heartbeats; a decision step generating a trigger, hereinafter referred to as a “
drowsiness trigger”
, for indicating occurrence of drowsiness when a state in which a time interval between adjacent heartbeats, hereinafter referred to as a “
heartbeat interval”
, is longer than the previous heartbeat interval consecutively occurs; anda warning step giving a warning to prevent dozing off when the drowsiness trigger is generated. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A dozing prevention device wherein the device accepts a time interval between adjacent heartbeats, hereinafter referred to as a “
- heartbeat interval”
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decides that drowsiness has occurred when a state in which the heartbeat interval is longer than the previous heartbeat interval consecutively occurs; and
gives a warning to prevent dozing off. - View Dependent Claims (32, 33, 34)
- heartbeat interval”
Specification