Equipment and method for identifying magnetic resonance anti-counterfeiting signal and control method of anti-counterfeiting signal identification

Abstract

The invention relates to equipment and method for identifying a magnetic resonance anti-counterfeiting material and a control method of anti-counterfeiting material identification. The identifying equipment comprises a microprocessor, a radio frequency (RF) transmitting unit, an RF receiving unit and an antenna. The control method comprises the following steps of: reading frequency synthesizer configuration data; transmitting a control signal to a frequency synthesizer to generate reference electromagnetic wave; transmitting the electromagnetic wave to the magnetic resonance anti-counterfeiting material by using an RF transmitting module; reading a corresponding signal in the magnetic resonance material; receiving a digital signal returned from the RF by using a receiving module; decomposing Cs and Cn out of the digital signal; reading the Cs threshold value Cs_min; judging whether the Cs is more than the Cs_min or not; if not, indication that the detection result is negative; if so, calculating signal noise ratio (SNR) by using the Cs and the Cn; reading the threshold value SNR_min; judging whether the SNR is more than the SNR_min or not; if not, indication that the detection result is negative; and if so, indication that the detection result is positive and confirming that the material is a magnetic resonance anti-counterfeiting material.

Description

technical field [0001] The invention relates to a magnetic resonance anti-counterfeit signal identification device and identification method, and a control method for anti-counterfeit signal identification. Background technique [0002] Negotiable securities, bills, and famous and high-quality trademarks are often forged, altered and altered by criminals, which has become a major public hazard today. The existing anti-counterfeiting technologies all have a single anti-counterfeiting function, low technical content, and easy to imitate. [0003] CN200620132905.5 announced a "product anti-counterfeiting system". Its purpose is to provide a product anti-counterfeiting system based on radio frequency identification technology. The anti-counterfeiting system includes a central processor and a number of terminals; the central processor includes an event management device, a memory, a product management device, and an equipment management device. The products of each manufacturer ...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the anti-counterfeiting system of this product uses radio frequency tag technology, and the electronic signal used by the radio frequency tag is a digital signal, which is easy to crack and has the possibility of cracking

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