System and method for detecting driver drowsiness of a vehicle

Details System and method for detecting driver drowsiness of a vehicle System and method for detecting driver drowsiness of a vehicle

1984-02-15

1986-04-08

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

180272, G08B 2300

Patent

active

045816077

ABSTRACT:
A system and method for detecting driver drowsiness on the basis of steering pulses, each steering pulse being produced whenever a steering wheel is rotated through a predetermined angle and indicating the direction of rotation of the steering wheel, comprising means for detecting the roughness of the road surface on which the vehicle is travelling and interrupting the detection of driver drowsiness for a fixed interval of time when the road surface roughness exceeds an acceptable level, i.e. a level conductive to accurate drowsiness detection.

REFERENCES:
patent: 4463347 (1984-07-01), Seko et al.
patent: 4496938 (1985-01-01), Seko et al.
patent: 4518954 (1985-05-01), Seko et al.
Copy of Specification corresponding to U.S. patent application Ser. No. 476,519, pending in U.S. Patent Office.

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