A device for generating and automatically controlling a displacement force of a mobile entity located in real time includes elements for generating a force of movement, the elements being controllable so as to generate a force in a plurality of different directions. The device also includes: elements for receiving a radio signal; elements for transmitting an electromagnetic signal, the electromagnetic signal being transmitted in response to an activation signal and allowing a moveable entity including the device to be located in real time; and control elements connected to the reception elements and to the elements for transmitting an electromagnetic signal. The control elements are configured to control the elements for generating at least one force of movement, in response to information for controlling a received electromagnetic signal, and for generating an activation signal, in response to synchronization information of a received radio signal.