Radio frequency tag distinguishing method and device

Abstract

The invention relates to the anti-counterfeiting technical field, and discloses a radio frequency tag distinguishing method and a device, which aim to accurately distinguish different RF (radio frequency) tags by means of measuring physical characteristics of each tag under the condition that the existing radio frequency (RF) tags are not changed. As various parameters of antennas, printed circuits and electronic elements on the tags are theoretically different in a production and manufacture process of the tags, and by the aid of factors of precisions and the like of production process, the physical characteristics of each tag are unique. As the physical characteristics are formed naturally along with the total tag production process (each device on each tag also has self physical characteristics during production and manufacture), the physical characteristics cannot be copied in a clone manner, and an anti-counterfeiting function is realized by means of precisely distinguishing the physical characteristics of each radio frequency tag.

Description

technical field [0001] The invention relates to the technical field of anti-counterfeiting, in particular to a method and device for distinguishing radio frequency tags. Background technique [0002] In the existing technology, radio frequency tags, including RFID and EAS tags, have been widely used in all aspects of daily life, such as: EAS anti-theft tags for shopping malls, RFID tags in the logistics field, etc., because the current product technology can only achieve a single function, such as shopping malls The EAS tags used can only realize the anti-theft function; the RFID tags in the logistics field only realize the function of one product number (ID), but cannot realize the anti-counterfeiting function. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method and device for distinguishing radio frequency tags without changing an...

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Problems solved by technology

[0002] In the existing technology, radio frequency tags, including RFID and EAS tags, have been widely used in all aspects of daily life, such as: EAS anti-theft tags for shopping malls, RFID tags in the logistics field, etc., because the current product technology can only achieve a single function, such as shopping malls The EAS tags used can only realize the anti-theft function; the RFID tags in the logistics field only realize the function of one product number (ID), but cannot realize the anti-counterfeiting function

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