Operator drowsiness detection in mines

摘要

Abstract A system for determining a drowsiness state 5 of an operator of a movable object comprises means for determining a proximity of the movable object to another object, and a control unit for generating a collision warning dependent on the determined proximity or data de rived therefrom. The control unit is adapted to determine 10 the drowsiness state of the operator subject to the de termined proximity or the data derived therefrom, or sub ject to an input from a monitoring unit for monitoring a response of the operator to the collision warning.