Method and device for determining the position of an object having faces and edges, and a positioning system

Device for determining the position of a sheet pile (1, 12) having faces (2) and edges (3), said device comprising:

• at least one light-sensitive receiver (7, 7′,) an evaluation device (8) associated with said at least one light sensitive receiver, at least one illumination system (9, 9′) producing at least one defined illumination zone (5, 5′, 5″) with at least one boundary (6, 6′, 6″, 6′″, 6″″, 6′″″), said illumination zone directed onto the sheet pile (1, 12) in such as way that at least one edge (3) of the sheet pile (1, 12) forms at least one boundary (6) of at least one illumination zone (5, 5″) and in that t said at least one receiver (7, 7′) detects at least two boundaries (6, 6′, 6″, 6′″, 6″″, 6′″″) and transmits them to evaluation device (8) for determining the position of the sheet pile (1, 12), and a positioning system (10) for positioning a sheet pile (1, 12), said positioning system including a controller (11) responsive to the determined actual position (20) of the sheet pile (1, 12) by said evaluation device to control movement of said positioning system in order to bring the sheet pile (1, 12) into its desired position (21).