| 摘要 |
A method for determining a parameter representative of the state of vigilance of a vehicle driver, from the measurement of the steering wheel angle of the vehicle includes determining two successive ranges of temporal windows: a first range of temporal windows T(t1) extending between ti and ti-t1 with t1min≦̸t1≦̸t1max, and a second range of temporal windows T(t2) extending between ti-t1 and ti-t1-t2, with t2min≦̸t2≦̸t2max, the two ranges of temporal windows T(t1), T(t2) are scanned and for each of the temporal windows T(t1), T(t2), a datum v(t1), v(t2) is calculated representative of the dispersion of the steering wheel angle values measured during the temporal window. Finally, for each pair of temporal windows T(t1)-T(t2), the ratio v(t1)/v(t2) is calculated, and the ratio v(t1)/v(t2) with the maximum value is selected as the value representative of the state of vigilance of the driver.
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