Localized energy study for analyzing driver fatigue state based on wavelet analysis

The study of driver fatigue can contribute greatly to avoiding road accidents. Localized energy analysis was performed on the vehicle state information, such as, steering angle and trace profile. Before the energy analysis, wavelet analysis is used to reduce the effect of noise. The experimental results indicate that the trend of power changes with the drivers' state of mind, which present possibility to quantitatively determine the state of driver fatigue.