| 摘要 |
Techniques for tracking the motion of an RFID tag using signal strength information. A single antenna (104) of an RFID reader (102) may be used to take a sequence of readings from an RFID tag (110) in motion. A signal strength indicator (e.g., received signal strength indicator (RSSI)) is determined for each reading. The sequence of RSSIs is then used to estimate a path of motion of the RFID tag (110) and the direction of motion of the RFID tag (110) along the path. |
