Patent Document ID: 20140070920
Application ID: 14022818
Patent Status: 0

Claim One:
1. A method for opening/closing an access ( 102 ) in hands-free access mode made secure by detection of movement of a lower member ( 3 , 4 ) of a user by a remote access system, this access system comprising at least two means of detection ( 1 , 2 ) which each emit a signal whose variations ( 10 , 12 ; 31 , 33 , 35 ) are analyzed, the detection of a movement of a lower member of the human body ( 3 , 4 ) being validated by the application of a double verification step according to a criterion for identification of a form of variation (F 1 , F 2 ) of each signal with a model form of said movement ( 23 ), and according to a criterion for simultaneity of detection of the forms of variation ( 25 ) identified on the signals, said method being characterized in that, the form to be verified being represented by a sharp point (P, M 1 , A) between two slopes (Pb, Pa) of opposite signs of the V-shaped type, the identification criterion comprises the detection of times (tA, tB) of critical changes in variation of slope inclination of this form, corresponding to the detection of a sharp point (A) and of an exit (B) of a form (F 2 ), in order to acquire the values of the critical variations of slope inclination (dAsA, dAsB) at the sharp point (A) and at the form exit (B), the determination of the values of a ratio R of variation in instantaneous amplitude and of duration EtA of travel of the form (F 2 ), together with comparisons ( 61 , 63 , 59 ) of these values of critical variations in slope inclination (dAsA, dAsB), of the ratio R of variation in amplitude and of duration EtA of the form (F 2 ) with predefined threshold values (Amin, Bmin; Etmax; Rmin).