TIRE PRESSURE MONITORING SYSTEM

摘要

The present invention relates to a tire pressure monitoring system. A transmission device included in the tire pressure monitoring system includes a sensor unit which measures the pressure of a tire; and a transmission unit which wirelessly transmits the data of the pressure of a tire corresponding to signals outputted by the sensor unit. The transmission unit includes a plurality of antennas; and a switching unit for selecting one antenna to be utilized for transmitting data among the antennas. [Reference numerals] (1021) Switching unit;(1025) First antenna;(1026) Second antenna;(1027) nth antenna