A method for controlling the integrity of at least one useful datum includes acquiring at least one UWB message coming from a transmitter by a wireless interface; demodulating the at least one UWB message and decoding of at least one useful datum; determining the position of the UWB transmitter by a reception of a plurality of messages transmitted by the transmitter and an analysis of the time-of-flight differences between these messages; associating the calculated position with the at least one useful datum.