Method for commanding a set of one or more intervention tools mounted on a railway intervention vehicle

A method of commanding a set of one or more tools mounted on a railway intervention vehicle progressing on a railway track in a direction of progression, carried out by a transposition system comprising a transposition chassis mounted on the railway intervention vehicle and one or more transposition matrix cameras fixed to the transposition chassis, the method comprising the following actions:

• reception of data characterising a curvilinear abscissa of a spatial indexation marker of known signature, and positioning the spatial indexation marker with respect to a reference line of the railway track, and coordinates of points or lines of interest in a two-dimensional locating reference system linked to the spatial indexation marker and to the reference line,
• acquisition with the one or more transposition matrix cameras of a set of one or more transposition bitmap images in a spatial reference system of the transposition system, fixed with respect to the transposition chassis,
• acquisition with an odometer of progression data of the transposition system with respect to the railway track,
• identification of the spatial indexation marker in the set of one or more transposition bitmap images as a function of the progression data and curvilinear abscissa data,
• determination of data characteristic of the spatial indexation marker and the reference line in the spatial reference system of the transposition chassis,
• calculation of transposed coordinates of the points or lines of interest in the spatial reference system of the transposition system, as a function of data characteristic of the spatial indexation marker and the reference line in the spatial reference system of the transposition system, and coordinates of the points or lines of interest in the locating reference system.