Samenvatting
Renault has investigated two approaches for developing an on-board system to warn of driver drowsiness. The first approach is based on the use of mechanical signals (steering wheel angle, lateral position, etc.), while the second is based on analysis of eyelid movements. The aim of this system is to warn the driver sufficiently early of the occurrence of micro-sleeps, because it is during these micro-sleep phases that the driver completely loses control of his vehicle. These moments of loss of control of the vehicle are characterized objectively by the simultaneous analysis of physiological signals and driving incidents recorded during tests on simulator and on the test circuit. (A)