Apparatus for controlling the displacement of a self-propelling vehicle (1) comprising means (2) for delimiting a boundary region (3) wherein to limit the displacements of said vehicle (1) and means (4) for locating the position of said vehicle (1), and further comprising a control unit (6) interfaced with at least said position-locating means (4) and operating means (5), in order to guide the displacements of said vehicle (1) within said boundary region (3) in response to the located position.
