| 摘要 |
A radio frequency identification (RFID) tag and a method and system for communicating with the RFID tag. The RFID tag includes a first and second structure respectively holding first data and second data that is complementary to the first data. The RFID tag does not include a microchip. An electromagnetic radio frequency signal is transmitted from an interrogator to the RFID tag. The interrogator receives, from the RFID tag, a response signal including third data being the first data or a combination of the first data and the second data. The interrogator extracts the third data from the response signal. A default value equal to the combination of the first data and the second data is stored in the interrogator. If the interrogator determines that the third data is unequal/equal to the default value, then a screen of the interrogator displays that the RFID tag is enabled/not enabled.
|
