Driver Drowsiness Detection
Driver drowsiness detection estimates whether the driver shows signs of fatigue and warns when a break may be needed. It can analyze steering behavior, lane position, trip duration, direct camera observations, or a combination of signals.
What it does
The system looks for patterns associated with reduced alertness, such as changing steering corrections or prolonged eyelid closure. When its threshold is reached, it may show a coffee-cup symbol and issue an audible or haptic warning. It is a focused fatigue function; a broader driver monitoring system can also assess distraction, gaze, presence, and readiness to take over.
Behavior varies between people, and road conditions can resemble fatigue patterns. Sunglasses, darkness, camera obstruction, short trips, and limited markings may affect detection. No warning proves that a driver is rested, and the absence of one must never be used to justify continuing when tired.
For detection approaches and warning logic, see Driver Drowsiness Detection.