Patent ID: 6683537
Filing Date: 2004-01-27
Classification: B60C,H01Q

Abstract:
A system of apparatus for monitoring at least one tire condition value in each of a plurality of pneumatic tires of a moving vehicle, each of the tires having associated therewith a passive electronic tire tag for sensing the at least one tire condition value, and each of the tire tags responsive to an interrogation signal transmitted thereto to transmit a data modulated signal representative of the at least one tire condition value, the monitoring system comprising:(a) portable ramp apparatus for supporting thereon the moving vehicle; (b) vehicle sensing apparatus for sensing the presence of the moving vehicle; (c) tire pressure sensing apparatus embedded in the ramp apparatus for detecting the presence thereon of a tire of the moving vehicle; (d) transceiver apparatus including transmitter antenna structure and receiver antenna structure respectively embedded in the ramp apparatus for transmitting the interrogation signal to respective tire tags when the tire pressure sensing apparatus detects the tire of the moving vehicle; and (e) receiving the respective data modulated tire tag signals independently of one another from different tire tags and demodulating the respective data modulated tire tag signals and digitizing data therefrom.