Dozing prevention method, and dozing prevention device
First Claim
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1. A method for preventing dozing off, comprising the steps of:
- 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; and
a warning step giving a warning to prevent dozing off when the drowsiness trigger is generated.
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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
20 Claims
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1. 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 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A dozing prevention device wherein the device accepts a time interval between adjacent heartbeats, hereinafter referred to as a “
- heartbeat interval”
;
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 (18, 19, 20)
- heartbeat interval”
Specification