An appreciable difference exists between brainwaves of a person that is awake and a person that is on the verge of sleep. As a person transitions from alertness to sleep, the alpha rhythms of his/her brainwaves decrease in frequency, diminish in amplitude, and become more irregular in frequency.
These brainwave changes can be sensed using an electroencephalogram (EEG). We developed a device that will recognize the shift from wakefulness to sleep, via recognition of the frequency of the EEG signal, and then relay that information wirelessly to an alarm system. The alarm system will visually display the awareness level of the user and provide audio alerts when the user is drowsy or has falling asleep.
Authors: Benjamin Schneider | David Mahr | Kuang Tan