| 摘要 |
A method and apparatus for determining the position of four tires on corresponding four wheels in a vehicle. Each wheel has an axis of rotation. Each tire has an embedded Radio Frequency IDentification (RFID) tag. The RFID tags embedded in the four tires have respective identifiers denoted as ID1, ID2, ID3, and ID4. A position to place a reader antenna is determined and the reader antenna is subsequently placed in the determined position. The reader antenna in the determined position emitting N signals to the respective RFID tag in the four tires. A delay is measured for receiving each signal reflected from the RFID tags. Which wheel of the four wheels each tire is on is identified according to the measured delays.
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