Awakening level estimation apparatus for a vehicle and method thereof

摘要

An awakening level estimation apparatus for vehicle has: a signal processing part; a frequency component amount calculation part for calculating an average value of the frequency component powers and calculating a maximum value of the frequency component powers; a correction factor calculation part for calculating a high frequency percentile value and calculating a low frequency percentile value and calculating a correction factor; an evaluation value calculation part for calculating an evaluation value; and a decision part for deciding an awakening level of a driver. <IMAGE>