A system for detecting and determining the position of moving objects, where electronic transceiver units communicate with at least two fixed transceiver stations to perform a constant position determination of movable objects within a delimited area. The communication between the fixed transceiver facilities and the electronic transceiver units occurs in the ultra wide band frequency spectrum in a frequency range from 3.10 GHz to 10.6 GHz, wherein communication occurs in the form of transient pulses emitted from the electronic transceiver units. The position determination is performed by calculating time or phase difference between receptions of a signal at at least two transceiver facilities, respectively. A system and method of indication of behaviour of an animal based on an acceleration detector carried by the animal and communication performed by a short-range radio system.