6. Add-on funtion
6.1 Driver fatigue alert
To help drivers manage the evolution of their fatigue, a fatigue index is displayed to let driver
know the value of driver's fatigue, taking into account physiological and journey related
parameters such as time of the day and time spent on driving. The device will alert the driver
every two hours of driving. When fatigue index is less than 60, the value is displayed in green
color. Before fatigue index reaches 80, yellow value is displayed with an alert sound. When
fatigue index is above 80, red value is displayed with 3 alert sounds (When switch on driver
fatigue alert function, Users need set correct system time). When switch off, fatigue index will
not be displayed on the screen.
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