Testing of commercially available fatigue monitors

This report presents an evaluation of three commercially available fatigue monitors (the Onguard eye closure monitor, a head nodding monitor - Dozer's Alarm, and an analogue of the Roadguard reaction time monitor) based on laboratory testing. The devices showed an ability to detect fatigue in some cases but were not able to maintain alertness and thus prevent performance deterioration. There were few instances of a startle response to the presentation of an auditory warning signal by Dozer's Alarm or Roadguard. Equipment faults with the modified version of Onguard made it impossible to assess the frequency of startle responses to the alarm.

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