Patent ID: 7256687

Claim:
A pneumatic pressure monitoring system comprising: a plurality of tire pneumatic pressure monitoring receivers for receiving radio signals transmitted from sensors provided in tires of a vehicle, and respectively detecting corresponding received signal strength indicator (RSSI) signals corresponding to the field intensities of the radio signals and detecting pneumatic pressure data of the tires included in the radio signals; a console configured to receive the RSSI signals and the pneumatic pressure data and process the pneumatic pressure data; an indicator for indicating the tire pneumatic pressure; respective monitoring receivers providing an RSSI signal corresponding to a respective tire of the plurality of tires of the vehicle; wherein the console is provided with a level adjusting means for adjusting output levels of the RSSI signals by controlling the tire pneumatic pressure monitoring receivers; and wherein the levels of the respective RSSI signals input to the console from the respective tire pneumatic pressure monitoring receivers are set approximately equal.