CN103950309A - Electromagnetic forgery prevention application of printing simulation radio frequency tag under standard printing process - Google Patents
Electromagnetic forgery prevention application of printing simulation radio frequency tag under standard printing process Download PDFInfo
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- CN103950309A CN103950309A CN201410148797.XA CN201410148797A CN103950309A CN 103950309 A CN103950309 A CN 103950309A CN 201410148797 A CN201410148797 A CN 201410148797A CN 103950309 A CN103950309 A CN 103950309A
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Abstract
The invention provides an electromagnetic forgery prevention application of a printing simulation radio frequency tag under a standard printing process. The application is as follows: firstly manufacturing a printing simulation radio frequency tag; then reading a corresponding code by virtue of a reader; designing ten types of printing simulation circuits for a printing simulation radio frequency tag circuit under a given microwave radiation condition, wherein each circuit is corresponding to one number among ten numbers from 0 to 9; electromagnetic characteristics of each circuit include main resonance centre frequency characteristics and secondary resonant frequency phase characteristics. An encoding method for the electromagnetic response characteristics of each circuit is as follows: when a centre frequency value under a main resonance response modal is corresponding to numbers from 0 to 9, performing binary encoding on frequency-phase positive and negative values under a secondary resonance response modal. The printing simulation radio frequency tag can be printed on money and tickets by virtue of the standard printing process, so that the forgery prevention functional and a function of continuously and rapidly reading codes can be realized, and the design and online rapid detection requirements of a digital system based on money and ticket forgery prevention can be met.
Description
Technical field
The present invention relates to method for anti-counterfeit and detection technique field, be particularly related under a kind of standard typography the electromagnetism Application in Anti-counterfeiting of printing simulation RF tag, be specially a kind of electromagnetic signature of RFID tag analog circuit of chipless and the money of coding techniques is false proof and excessively several devices.
Background technology
Since reform and opening-up, anti-counterfeiting technology has obtained significant progress at safety of China print field, and the form such as banknote, stamp, passport, visa, electronic entrance ticket, anti-counterfeiting mark, false-proof ticket, marketable securities, bank's important documents and security stamp is used widely in this field.Along with scientific and technological progress and expanding economy, counterfeit and shoddy commodities impact the continuous enhancing of tide to famous-brand and high-quality commodity, anti-counterfeiting technology is further applied to commodity packaging field, greatly facilitates the people's daily life and work, meanwhile, also anti-counterfeiting technology is had higher requirement.
In anti-counterfeiting printing process field, application content is quite abundant, and various new anti-counterfeiting printing technology and false proof new material are still in continuous generation.For example, the application on money mainly contain anti-forge paper, watermark, magnetic ink, safety line, to major techniques such as seal technology and intaglio printings; The printing technologies such as magnetic ink, photochromatic printing ink and the fluorescent ink developing for technical support is provided the anti-counterfeiting detection of machine currency examine certificate in addition.But, along with fast-developing and good society and the economic benefit of electronic anti-fogery print field, the machine-readable performance of anti-counterfeiting printing technology and false proof new material is had higher requirement.Successfully magnetic ink printing and detection technique thereof are organically combined and are applied to electronic anti-fogery print field for the false proof of money with by extraordinary anti-counterfeiting printing technology and RFID technology (radio RF recognition technology) realization at present.Current, the printability of magnetic ink is better, but is difficult to the distribution of printed a small amount of magnetic ink quantitatively to detect, thereby affects its anti-counterfeiting performance; The latter implants less radio-frequency and knows chip, cannot be used for money typography under standard printing condition; For this reason, a kind of electromagnetic signature of RFID tag analog circuit of chipless and the money method for anti-counterfeit of coding techniques and the system that realizes the method urgently produce.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the object of the present invention is to provide the electromagnetism Application in Anti-counterfeiting of printing simulation RF tag under a kind of standard typography, utilize the electromagnetic signature of the analog circuit of special style, electromagnetic signature comprises main resonance centre frequency and time resonant frequency-phase place, and this circuit feature is carried out to digital coding, this Circuits System can be identified and data access function by reader.
An electromagnetism Application in Anti-counterfeiting for printing simulation RF tag under standard typography, comprises the following steps:
The making of step 1, printing simulation RF tag:
Employing standard silk screen or offset printing or gravure printing technique arrive stock outer surface or inside conductive material according to the analog radio frequency tag circuit design transfer designing in advance; The material of stock is the nonmetallic materials that printability is strong, and nonmetallic materials comprise plastics, paper, PET, PP, fiberboard, timber, glass, rubber, low cost potsherd; Conductive material comprises electrically conductive ink or conductive silver paste;
Or, analog radio frequency tag circuit pattern being processed into mask module, and by magnetically controlled sputter method, metal targets being transferred on stock, metal targets comprises gold, silver, copper, al and ni;
Or, carry out low cost batch making by RFID etching antenna or chemical deposition;
Step 2, by reader, the corresponding coding of this electromagnetic signature is read, to realizing its Application in Anti-counterfeiting.
Described analog radio frequency tag circuit design is specially: design the printing simulation circuit type sample of ten kinds of styles, the main resonance centre frequency feature f of every kind of circuit style
0, f
1, f
2..., f
8and f
9correspond respectively to the one-bit digital the tens word of from 0 to 9 in the decimal system; And the inferior resonant frequency of every kind of circuit has four kinds of phase property φ
jj=1,2,3, the 4th, be considered as redundancy, as the reliability of the sense information of verification reader, specific coding method to every kind of circuit electromagnetic response feature is as follows: the center frequency value under main resonance response mode is corresponding to corresponding 0 to 9 numeral, and the positive negative value of frequency-phase place under inferior resonance response mode is carried out binary coding 0 and 1, secondly, for the sequence of determining coding is positive sequence or backward, need to increase respectively two at the head and the tail place of coded sequence and there is fixed center frequency values f
hand f
ethe simulation label of square style; Wherein, f
hand f
ewhat represent is the start-tag of positive sequence and backward.
Described reader system comprises radiofrequency emitting module and Receiver Module, the microwave transmitting power of employing in several milliwatts between tens milliwatts, frequency range 3～20GHz, according to different matrix material and analog circuit pattern suitably to regulate; Or reader replaces with vector network analyzer, directly the label antenna being printed in general stock material is measured by vector network analyzer, obtain the impedance diagram of every kind of label antenna in free space, the insertion loss S11 of impedance diagram middle impedance changes with the scan frequency of frequency source.
General stock material of the present invention has paper-like materials (money), polymeric material and plastics are as PET, the materials such as polyamide, its thickness is generally thinner and dielectric material is lower (its relative dielectric constant is between 2～5), can penetrate completely the space electromagnetic wave (incident electromagnetic wave) of reader system transmitting; Therefore, to given stock material, the electromagnetic signature (coding) of printed analog radio frequency label depends on the space electromagnetic links system/radio frequency circuit system in substrate material surface formation with certain electric magnetic resonance, reflection and scattering signatures complexity completely; Reflected and on stock material, formed the electrically conductive ink formation antenna of analog radio frequency label pattern (coding) and the electromagnetic interaction in space (comprising resonance, reflection and scattering phenomenon) of reader system transmitting, this feature is by being identified by the Receiver Module of reader.It is emphasized that standard typography of the present invention has comprised single or multiple printing process, according to the style designing in advance, conductive material is transferred on stock, to form the printing simulation RF tag of single or multiple lift structure.With without printing conductive inks part or without compared with the matrix material of antenna part, the electromagnetic signature of this radio circuit depends on the feature of pattern, the electromagnetic property of electrically conductive ink and the electromagnetic field of reader system transmitting of the electromagnetic property of matrix material, printed electrically conductive ink completely.Under given electromagnetic radiation condition for given electrically conductive ink material and reader, this electromagnetic signature only depends on the pattern design of printed circuit, and has the frequency-response characteristic that can be identified by reader system.Specifically by the pattern design to printed circuit, this circuit and space radiation electromagnetic field are intercoupled, and there is the frequency response characteristic (main resonance and time resonance) of multiple spot resonance, this characteristic is corresponding one by one with physical circuit feature, thereby reaches the function that can be identified.
Stock of the present invention and analog radio frequency tag circuit do not comprise radio frequency tag chip, and its binary coding that can recognition feature neither be stored by RFID label chip determines; In order to distinguish the radio frequency circuit system (digital label Circuits System) of RIFD label chip, this printed circuitry is called to simulation label circuit system.Different from RIFD label chip system is that the coding of simulating tag circuit no longer needs storage, but corresponding to its exclusive frequency-response characteristic.Can realize according to the present invention required coding on the money mode with analog circuit that is printed on, be printed on as on the medium such as paper or money by standard typography, thereby the function that realizes its antiforge function and read fast its coding continuously, to meet the digitization system design false proof based on money and online reading requirement fast.
Brief description of the drawings
Fig. 1 is the hardware composition system that realizes chipless RF tag code identification of the present invention.
Fig. 2 is for being printed on 0 to 9 digital corresponding printing analog circuit pattern diagram on paper matrix material.
Fig. 3 is 0 to 90 digital analog circuit pattern, coding and resonance curve three corresponding relation thereof.
Fig. 4 for printing the position of the circuit style that is encoded to " 2186 " on paper money volume.
Fig. 5 is the circuit style that the present invention is " 2186 " in the position printed codes at paper money volume place.
The resonance curve figure that the circuit style that Fig. 6 is apparatus of the present invention is " 2186 " to graph code measures, wherein Fig. 6 A is the resonance curve figure that coding 2 circuit style measures, Fig. 6 B is the resonance curve figure that the circuit style of coding 1 measures, the resonance curve figure that the circuit style of Fig. 6 C coding 8 measures, the resonance curve figure that the circuit style of Fig. 6 D coding 6 measures.
Detailed description of the invention
Be described in more detail of the present invention below in conjunction with accompanying drawing.
An electromagnetism Application in Anti-counterfeiting for printing simulation RF tag under standard typography, comprises the following steps:
The making of step 1, printing simulation RF tag:
Employing standard silk screen or offset printing or gravure printing technique arrive stock outer surface or inside conductive material according to the analog radio frequency tag circuit design transfer designing in advance; The material of stock is the nonmetallic materials that printability is strong, and nonmetallic materials comprise plastics, paper, PET, PP, fiberboard, timber, glass, rubber, low cost potsherd; Conductive material comprises electrically conductive ink or conductive silver paste;
Or, analog radio frequency tag circuit pattern being processed into mask module, and by magnetically controlled sputter method, metal targets being transferred on stock, metal targets comprises gold, silver, copper, al and ni;
Or, enter low cost batch making by RFID etching antenna or chemical deposition;
Step 2, by reader, the corresponding coding of this electromagnetic signature is read, to realizing its Application in Anti-counterfeiting.
Described analog radio frequency tag circuit design is specially: design the printing simulation circuit type sample of ten kinds of styles, the main resonance centre frequency feature f of every kind of circuit style
0, f
1, f
2..., f
8and f
9correspond respectively to the one-bit digital the tens word of from 0 to 9 in the decimal system; And the inferior resonant frequency of every kind of circuit has four kinds of phase property φ
jj=1,2,3, the 4th, be considered as redundancy, as the reliability of the sense information of verification reader, specific coding method to every kind of circuit electromagnetic response feature is as follows: the center frequency value under main resonance response mode is corresponding to corresponding 0 to 9 numeral, and the positive negative value of frequency-phase place under inferior resonance response mode is carried out binary coding 0 and 1, secondly, for the sequence of determining coding is positive sequence or backward, need to increase respectively two at the head and the tail place of coded sequence and there is fixed center frequency values f
hand f
ethe simulation label of square style; Wherein, f
hand f
ewhat represent is the start-tag of positive sequence and backward.
Described reader system comprises radiofrequency emitting module and Receiver Module, the microwave transmitting power of employing in several milliwatts between tens milliwatts, frequency range 3～20GHz, according to different matrix material and analog circuit pattern suitably to regulate; Or reader replaces with vector network analyzer, directly the label antenna being printed in general stock material is measured by vector network analyzer, obtain the impedance diagram of every kind of label antenna in free space, the insertion loss S11 of impedance diagram middle impedance changes with the scan frequency of frequency source.
As Fig. 1 has disclosed a kind of structural representation of the false proof reader system of electromagnetism of analog radio frequency label, comprise: host computer 1, interface 2, single-chip microcomputer 3, frequency source 4, power amplifier 5, wave detector 6, the signal emission module 7 of reader and the radio-frequency receiving system 10-12 of reader, and detected object comprises the analog radio frequency label 8 and the tested matrix material 9 that are printed on matrix inside, wherein, host computer 1 communicates by interface 2 and single-chip microcomputer 3, and host computer 1 is to single-chip microcomputer 3 read test results and send control command; Single-chip microcomputer 3 sends the start-stop frequency signal of scan frequency to frequency source 4, carry out power amplification and be connected to again the signal emission module 7 of reader by power amplifier 5, and tested object is carried out to reading tag information, turn back to single-chip microcomputer 3 and host computer 1 by remagnifier and wave detector after radio-frequency receiving system (10-12) pick-up tag signal.Radio-frequency receiving system 10-12 carries out work by microwave resonance principle, the microwave signal process system that its core is made up of coupling probe 10, tuner 11 and the devices such as isolator 12 that decline, this system can realize to be measured radio frequency transmissions and the frequency and the phase place variation that receive signal, is the core of the money false proof device of analog radio frequency label.The signal transmitting system of reader can be substituted by commercial vector network analyzer (comprising module 1-7); By vowing that net or homemade the system frequency signal of launching and the analog radio frequency label being printed on stock produce the microwave resonance signal intercoupling, this signal and transmit between frequency and phase place change and can be identified and be converted into by radio-frequency receiving system the demonstration of corresponding data/coding, to realize false proof object.Active microwave cavity is applied in the money anti-counterfeiting detection of RF tag, this microwave resonance system is sensor, again a part of oscillator: will form resonance by active microwave cavity control transmitting assigned frequency microwave signal with analog radio frequency label by tested matrix material with while being printed on the analog radio frequency label of matrix inside, make the frequency shift (FS) of echo-signal and carry to there is the microwave signal of specific electromagnetic signature and produce and entirely transmit and can the identification of radio-frequency receiving system radiofrequency signal recognition microcontroller circuit obtain resonance center frequeH f at the grounded metal base plate of reader receiving circuit
i(i=1,2 ..., 9,10) and phase place electromagnetic signature, this feature is converted into f through the microcontroller circuit of reader
icorresponding coded digital (0～9) show or by the code storage of each Anti-fake electronic label on computers.
Shown in Fig. 2 is the corresponding relation between style and the decimal coded of the simulation electronic label printing on stock that proposes of the present invention; And shown in Fig. 3 be reader system measure resonance center frequeH f
i(i=1,2 ..., 9,10) and the style of simulation electronic label and the one-to-one relationship between three kinds of encoding.Wherein, the diameter dimension of every kind of label is 5mm, and the width in gap is fixed as 0.2mm.
In implementation process, the reader part (the parts 8-12 in Fig. 1) of microwave resonance system can be fixed on the device of capable of regulating height, distance between itself and tested sheet material can be fixed, detected object (matrix material 9 and analog radio frequency label 8) passes through Real-Time Monitoring frequency shift (FS) f and phase deviation from the top of reader signal receiver module with certain speed v.There is analog radio frequency label when the when skew explanation object of surveying occurs resonant frequency, then this information is converted to coded digital mode shows or by the code storage of each Anti-fake electronic label.
Below in conjunction with embodiment, a kind of method of microwave detection and detection method of device thereof utilized of the present invention is described in detail.
To adopt gap annulus resonance (SRR) circuit original paper to realize the coding of numeral from 0 to 9 according to one embodiment of the invention, corresponding encoding relation is 0=" 0000 " as shown in Figure 2, 1=" 0001 ", 2=" 0010 ", 3=" 0011 ", 4=" 0100 ", 5=" 0101 ", 6=" 0110 ", 7=" 0111 ", 8=" 1000 ", 9=" 1001 ", the ID of different labels realizes by different electromagnetism is corresponding, wherein the corresponding electromagnetic signature of label 0～9 as shown in Figure 3, wherein the diameter dimension of label is 5mm, the width in gap is fixed as 0.2mm, different labels have different electromagnetic response features, thereby label is carried out to code identification, Fig. 3 label operating frequency range is from 10GHz～18GHz, for example coding " 0000 " corresponding label is in whole frequency range total reflection, return loss is near 0dB, corresponding two the working frequency points 12.5GHz of label " 0101 " and 15GHz, return loss is respectively-22dB and-34dB.
Shown in another embodiment of the present invention, adopt as shown in Figure 4,5, 6 gap annulus resonant ring (SRR) circuit original paper to realize digital coding " 2186 " in bank note size (165mm × 77mm) position, the upper right corner on by serigraphy.In figure, adopt altogether " 0010 ", " 0001 ", " 1000 " and " 0110 " four resonant elements in above-mentioned label, by the electromagnetic detection to four codings, can call over 13.3GHz, 12.5GHz, 15.5GHz and two frequency 13.3GHz and tetra-coded messages of 15GHz, thereby realize the digital coding of " 2186 ".
Claims (3)
1. an electromagnetism Application in Anti-counterfeiting for printing simulation RF tag under standard typography, is characterized in that, comprises the following steps:
The making of step 1, printing simulation RF tag:
Employing standard silk screen or offset printing or gravure printing technique arrive stock outer surface or inside conductive material according to the analog radio frequency tag circuit design transfer designing in advance; The material of stock is the nonmetallic materials that printability is strong, and nonmetallic materials comprise plastics, paper, PET, PP, fiberboard, timber, glass, rubber, low cost potsherd; Conductive material comprises electrically conductive ink or conductive silver paste;
Or, analog radio frequency tag circuit pattern being processed into mask module, and by magnetically controlled sputter method, metal targets being transferred on stock, metal targets comprises gold, silver, copper, al and ni;
Or, enter low cost batch making by RFID etching antenna or chemical deposition;
Step 2, by reader, the corresponding coding of this electromagnetic signature is read, to realizing its Application in Anti-counterfeiting.
2. the electromagnetism Application in Anti-counterfeiting of printing simulation RF tag under a kind of standard typography according to claim 1, is characterized in that,
Described analog radio frequency tag circuit design is specially: design the printing simulation circuit type sample of ten kinds of styles, the main resonance centre frequency feature f of every kind of circuit style
0, f
1, f
2..., f
8and f
9correspond respectively to the one-bit digital the tens word of from 0 to 9 in the decimal system; And the inferior resonant frequency of every kind of circuit has four kinds of phase property φ
jj=1,2,3, the 4th, be considered as redundancy, as the reliability of the sense information of verification reader, specific coding method to every kind of circuit electromagnetic response feature is as follows: the center frequency value under main resonance response mode is corresponding to corresponding 0 to 9 numeral, and the positive negative value of frequency-phase place under inferior resonance response mode is carried out binary coding 0 and 1, secondly, for the sequence of determining coding is positive sequence or backward, need to increase respectively two at the head and the tail place of coded sequence and there is fixed center frequency values f
hand f
ethe simulation label of square style; Wherein, f
hand f
ewhat represent is the start-tag of positive sequence and backward.
3. the electromagnetism Application in Anti-counterfeiting of printing simulation RF tag under a kind of standard typography according to claim 1, is characterized in that,
Described reader system comprises radiofrequency emitting module and Receiver Module, the microwave transmitting power of employing in several milliwatts between tens milliwatts, frequency range 3～20GHz, according to different matrix material and analog circuit pattern suitably to regulate; Or reader replaces with vector network analyzer, directly the label antenna being printed in general stock material is measured by vector network analyzer, obtain the impedance diagram of every kind of label antenna in free space, the insertion loss S11 of impedance diagram middle impedance changes with the scan frequency of frequency source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410148797.XA CN103950309B (en) | 2014-04-14 | 2014-04-14 | Electromagnetic anti-counterfeiting application for printing analog radio frequency tag under standard printing process |
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|---|---|---|---|
| CN201410148797.XA CN103950309B (en) | 2014-04-14 | 2014-04-14 | Electromagnetic anti-counterfeiting application for printing analog radio frequency tag under standard printing process |
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| CN103950309A true CN103950309A (en) | 2014-07-30 |
| CN103950309B CN103950309B (en) | 2017-01-04 |
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| CN201410148797.XA Expired - Fee Related CN103950309B (en) | 2014-04-14 | 2014-04-14 | Electromagnetic anti-counterfeiting application for printing analog radio frequency tag under standard printing process |
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Cited By (6)
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| CN109447230A (en) * | 2018-09-30 | 2019-03-08 | 厦门物之联智能科技有限公司 | A kind of optical electron bimodulus anti-counterfeiting system |
| CN109492732A (en) * | 2018-09-30 | 2019-03-19 | 厦门物之联智能科技有限公司 | A kind of anti-metal electronic tag resistant to high temperatures and recognition system |
| WO2019100291A1 (en) * | 2017-11-23 | 2019-05-31 | 深圳市矩阵多元科技有限公司 | Method for making anti-counterfeit label and anti-counterfeit label |
| CN110738065A (en) * | 2018-07-18 | 2020-01-31 | 中国移动通信集团设计院有限公司 | anti-counterfeiting system and method |
| CN111950307A (en) * | 2020-07-02 | 2020-11-17 | 广东易理铺智能科技有限公司 | Electronic price tag awakening system and method based on electromagnetic signals |
| CN117677061A (en) * | 2024-01-29 | 2024-03-08 | 深圳特新界面科技有限公司 | Preparation method and system of environment-friendly aqueous conductive paste printed electronic tag |
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|---|---|---|---|---|
| WO2019100291A1 (en) * | 2017-11-23 | 2019-05-31 | 深圳市矩阵多元科技有限公司 | Method for making anti-counterfeit label and anti-counterfeit label |
| CN110738065A (en) * | 2018-07-18 | 2020-01-31 | 中国移动通信集团设计院有限公司 | anti-counterfeiting system and method |
| CN110738065B (en) * | 2018-07-18 | 2023-09-19 | 中国移动通信集团设计院有限公司 | Anti-counterfeiting system and method |
| CN109447230A (en) * | 2018-09-30 | 2019-03-08 | 厦门物之联智能科技有限公司 | A kind of optical electron bimodulus anti-counterfeiting system |
| CN109492732A (en) * | 2018-09-30 | 2019-03-19 | 厦门物之联智能科技有限公司 | A kind of anti-metal electronic tag resistant to high temperatures and recognition system |
| CN111950307A (en) * | 2020-07-02 | 2020-11-17 | 广东易理铺智能科技有限公司 | Electronic price tag awakening system and method based on electromagnetic signals |
| CN111950307B (en) * | 2020-07-02 | 2024-01-19 | 深圳创烽物联网技术有限公司 | Electronic price tag awakening system and method based on electromagnetic signals |
| CN117677061A (en) * | 2024-01-29 | 2024-03-08 | 深圳特新界面科技有限公司 | Preparation method and system of environment-friendly aqueous conductive paste printed electronic tag |
| CN117677061B (en) * | 2024-01-29 | 2024-04-09 | 深圳特新界面科技有限公司 | Preparation method and system of environment-friendly aqueous conductive paste printed electronic tag |
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