Caterpillar has begun selling eye- and face-tracking technology that recognizes when mining truck operators are about to fall asleep.
According to a BBC report, Newmont Mining and BHP Billiton have tested the technology.
A camera installed in the cab monitors pupil size, blinking, and how long eyes stay shut. If the system senses the operator is falling asleep, an alarm sounds and the seat vibrates. Cat will distribute the system through an alliance with Seeing Machines.