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12. 发明申请

US20180292230A1 METHOD FOR ESTIMATING THE MOVEMENT OF A PEDESTRIAN 审中-公开
公开(公告)号：US20180292230A1
公开(公告)日：2018-10-11
申请号：US15766296
申请日：2016-10-10
申请人： SYSNAV
发明人： David VISSIERE , Mathieu HILLION , Eric DORVEAUX , Augustin JOUY , Marc GRELET
IPC分类号： G01C22/00 , G01C21/16 , G01C21/20 , G01P13/00
摘要： The present invention relates to a method for estimating the movement of a walking pedestrian (1), the method being characterised in that it comprises the following steps: (a) Acquisition, by inertial-measurement means (20) rigidly connected to a lower limb (10) of said pedestrian (1) and positioned in such a way as to have substantially a movement of rotation with respect to a distal end (11) of said lower limb (10) at least when said distal end (11) of the lower limb (10) is in contact with the ground, of an acceleration and of an angular speed of said lower limb (10); (b) Estimation, by data-processing means (21, 31, 41), of a speed of said lower limb (10) according to said measured acceleration and said measured angular speed. (c) Determination of a time interval of said walking of the pedestrian (1) during which said distal end (11) of said lower limb (10) is in contact with the ground according to the measured acceleration, the measured angular speed, and a moment arm between the inertial-measurement means (20) and said distal end (11); (d) In said determined time interval: calculation of an expected speed according to said measured angular speed and said moment arm; Correction of the estimated speed according to the expected speed; (e) Estimation of the movement of the pedestrian (1) according to the estimated speed.

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