New eye and face tracking technology installed in trucks could reduce the number of accidents by detecting when drivers fall asleep.

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Caterpillar will sell a package that includes sensors, software and alarms that would keep weary drivers alert by warning them when doze off. Some of the world's biggest firms, including BHP Billiton and gold producer Newmont Mining have already undergone trials testing the tracking technology.

The DSS-IVS (in vehicle system) uses a small, camera mounted onto the console to track operator eye behavior, determine the driver's drowsiness state and detects microsleeps the instant they occur. Audio and seat vibration alarms, meanwhile, alert the operator, and site dispatchers are notified of incidents in real-time.

According to the company, the sensors work in complicated environments such as nighttime and even still if the driver happens to be wearing glasses. A study in Brazil showed that sleepiness caused 4.5% of truck crashes on its roads, while almost 50% of incidents were caused by a driver's "inattention."