Vigilance level determination device for machine operator or vehicle driver using evaluation of measured pupil size of at least one eye

摘要

The device has an image recording unit for time-dependent measurement of the pupil size of at least one eye of the machine operator or the vehicle driver, with input of the machine operator or vehicle driver identification and evaluation of the vigilance level dependent on the measured pupil size, for automatic blocking of the operation of the machine or the vehicle, when the vigilance level is insufficient.