Doze-off warning apparatus for vehicle
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United States of America Patent
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Jan 11, 2011
Issued Date -
N/A
app pub date -
Nov 24, 2008
filing date -
Mar 18, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a doze-off warning apparatus for a vehicle, comprising: a sensor measuring a driver's eye-open time (t.sub.o) and an eye-closure time (t.sub.c); a doze-off driving determination part determining degree of danger based on the measured eye-open time (t.sub.o) and the eye-closure time (t.sub.c) and comparing the determined degree of danger with a predetermined threshold (Kt); and an alarm part providing a warning signal with the driver when the degree of danger exceeds the predetermined threshold (Kt).
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