| 摘要 |
The invention concerns the field of electronic labels affixed on products. The identification method is used in a non-deterministic protocol and consists, in each label (10), in encoding the amplitude of the received signals and in transmitting a message containing said code (CA). The electronic querying-reading-recording device (40), which recognises the code (CA), re-transmits it to the labels (10) where it is compared to that of the labels which have transmitted in the transmission window. If there is conformity, the label ceases to transmit, otherwise, the label transmits at the next cycle. |
