Method and system for preventing counterfeit by using differentiation of electromagnetic signals of RFID

Abstract

The invention discloses a method and a system for preventing counterfeit by using differentiation of electromagnetic signals of radio frequency identification (RFID). The method comprises the following steps of: sending an instruction to an RFID radio frequency tag to be identified, and receiving a signal fed back by the RFID radio frequency tag; performing electromagnetic signal physical property recognition on the received signal to obtain recognition characteristics; and performing matrix recognition on comparison parameters and records in a database to judge the truth and falsehood of theRFID. In the method and the system for preventing counterfeit by using the differentiation of the electromagnetic signals of the RFID, the characteristics of substances in the RFID radio frequency tag are used, namely different RFID antenna modules and integrated circuit (IC) chips have different physical properties, and differentiation of physical properties of electromagnetic signals exists between two RFID radio frequency tags with the same property, so that different RFID radio frequency tags are differentiated by measuring the differentiation, and unduplicatedness of the RFID radio frequency tags is guaranteed.

Description

technical field [0001] The present invention relates to an anti-counterfeiting method and system of RFID radio frequency tags, in particular to an anti-counterfeiting method and system realized by utilizing the difference of electromagnetic signals of RFID radio frequency tags. Background technique [0002] RFID (Radio Frequency Identification, or RFID for short) radio frequency tag refers to a miniature tag (radio frequency tag, Radio Frequency Tag, or RF TAG for short) composed of an IC chip and a wireless communication antenna module. The energy supply of RFID radio frequency tags is divided into three modes: active, semi-active and passive. The RFID radio frequency tags referred to in the specification of the present invention include active, semi-active and passive RFID radio frequency tags. [0003] The RFID radio frequency tag is composed of an IC chip and a wireless communication antenna module. The wireless communication antenna module mainly completes the conversio...

AI Technical Summary

Problems solved by technology

However, with the development of science and technology, any material or technology can be reproduced and imitated by others, so its anti-counterfeiting effect is difficult to meet the requirements

[0006] For example, in the existing technology, the anti-counterfeiting of RFID tags mainly uses various encryption chips. The encryption chips increase the cost of RFID a lot, and the encryption algorithm cannot realize anti-counterfeiting fundamentally, and can only guarantee data security to a limited extent. The RFID chip will be cloned when the vendor key is leaked or the encryption algorithm is broken, or the counterfeiter completely clones the storage area.

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