Patent ID: 7250851

Claim:
Process for location using locating sensors ( 100 , 101 , 110 , 111 ) each mounted on a vehicle wheel ( 4 ), each sensor being provided with an emitter and the vehicle ( 2 ) being provided with a corresponding receiver ( 6 ) adapted to receive the signals emitted by each sensor ( 100 , 101 , 110 , 111 ), characterized in that the receiver ( 6 ) is provided with two separate antennas ( 12 , 14 ), separated from each other and disposed such that neither antenna is located substantially equidistantly from the sensors ( 100 , 101 , 110 , 111 ), the two antennas ( 12 , 14 ) being located on the same side of the vehicle, and in that the location of the sensors ( 100 , 101 , 110 , 111 ) is carried out by analyzing the field power received by the receiver ( 6 ) by means of each antenna ( 12 , 14 ) for each sensor, the power of the field received by one antenna being the greater, the nearer to the antenna is the sensor that emitted the corresponding signal, for a vehicle having four wheels ( 4 ), characterized in that the process comprises the following steps: a) analysis of the power of the signals received by the two antennas ( 12 , 14 ) so as to distinguish the two sensors ( 100 , 101 ) located on the side of the antennas from the other two sensors ( 110 , 111 ), the signals received from these two sensors being the less attenuated, b) one antenna being inactivated and the other being activated, analysis of the power of the signals received by the two sensors ( 100 , 101 ) located on the same side as the antennas so as to determine which sensor is the nearer the antenna that is still activated, c) one antenna being inactivated and the other being activated, analysis of the power of the signals received from the two sensors ( 110 , 111 ) located on the side opposite the antennas ( 12 , 14 ) so as to determine which sensor is nearer to the antenna that is still activated.