ABSTRACT
ABSTRACT: Driver status monitoring belongs to the key components of active safety systems which are capable of improving car and road safety without compromising driving experience. To improve effectiveness and robustness by adding sensing capability to a prototype of driver assistance system, Impedance Spectroscopy (IS) is investigated with respect to the correlation between impedance response and driver drowsiness/vigilance. For this key aim and potential vehicle integration (via on-board equipment), suitable embedded IS-system is needed and the first-cut implementation serves here for study. The experimental results demonstrate that with IS the classification accuracy has been improved by 10% for three drowsiness levels based on data sets of five test subjects with 300-minute driving sequence.
