Drowsy driver detection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Apr 21, 1998
filing date -
Apr 21, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for detecting a drowsy driver includes an axle with a sensor for measuring the movement of the axle and for producing an axle signal. The sensor typically measures any or all of the following: the lateral acceleration of the axle, the fore-aft acceleration of the axle, or the vehicle speed. A central processing unit compares the axle signal derived from the sensor measurements to a pre-determined drowsy threshold and an indicator indicates to the driver that drowsiness has been detected when the axle signal exceeds the pre-determined drowsy threshold.
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