TESTING A SYSTEM FOR PREDICTING MICROSLEEP

An instrument to objectively measure driver’s fatigue and to monitor approaching micro-sleep was designed, manufactured and tested. The instrument is based on a simple infrared sensor, which consists of an emitter and detector and is based on the different reflectivity of the eye and the skin of the eyelid. The instrument records eyelid activity as the number of blinks. The device has been put into practice in the form of lensless glasses and tested in an automobile simulator at the Faculty of Transport, Czech Technical University in Prague. The results show that the system was reasonably efficient at detecting fatigue, and therefore potentially micro-sleep. However, currently it is not possible to measure the effectiveness of the system and evaluate the results in real-time

OBJEKTIVNÍ MĚŘENÍ ÚNAVY FREKVENCÍ MRKÁNÍ

In the article, the new possibility of registration of fatigue is described. The optoelectronic apparatus records the eye-blink rate which serves as an objective indicator of person's fatigue, especially at night. The results show that frequency of eye-blink rate is faster in the night than in the day. Described method can be used in drivers, which will be informed by warning acoustic signal about the risk of falling asleep when the frequency of eye-blink will reach individually critical level