Threshold Value of Indices of Eye States to Monitor Drive Fatigue

Abstract:

In order to put eye states indices such as the frequency of blink,how long all blinks have taken,the average time of blink into practice to monitor drive fatigue,an experiment with 173 samples was set out.On the basis of classifying samples by age and sexuality,the threshold values of these three indices were calculated with the reference to EGG index.The three indices were investigated from two aspects,namely,significance of difference and stability,and then the average of blink time is regarded as the most appropriate index.Classifying people by the age is more reasonable.In the light of the data,the threshold values of this index of every crowd with different ages were figured out,and their practicality in realtime monitoring was verified in realtime monitoring through an outofdoor experiment.

Key words:drive fatigue; fatigue monitoring; eye state monitoring; evaluation indices; threshold values of indices