... around the day.Distinguish real doze or untrue sleep, effectively reduce false warning.Early warning for drowsy ... status.Detect sleeping with eyes opening.Detect sudden sleep.Detect mindlessness and scatterbrained.Can be used by ... the Lane abnormal, the driver may be have sleep too long to can not be wake up. ... .Second, the device is smart, if you have big body movement, or speaking, or turned you head, ...