Anti-counterfeiting identification code verification method based on wireless radio frequency technology

Abstract

The invention discloses an anti-counterfeiting identification code verification method based on a wireless radio frequency technology, and relates to the field of identification code anti-counterfeiting verification, and the anti-counterfeiting identification code verification method based on the wireless radio frequency technology comprises the steps: employing a reader-writer to recognize an identification code in a wireless radio frequency tag; generating wireless radio frequency anti-counterfeiting modes and three-dimensional space coordinates of the identification codes based on the byte information of the identification codes, and classifying the wireless radio frequency anti-counterfeiting modes; and the three-dimensional space coordinates of the identification code are combined with various wireless radio frequency anti-counterfeiting modes to verify the identification code so as to judge the authenticity of the product. The fourth byte, the fifth byte, the sixth byte and the seventh byte of the wireless radio frequency tag are used for anti-counterfeiting verification, so that the counterfeiting difficulty is greatly increased, the problems that a single tag cannot independently verify authenticity and a specific number of tags in the same group must be combined for collective verification are solved, and the safety level of the anti-counterfeiting technology is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of anti-counterfeiting verification of identification codes, and in particular to an anti-counterfeiting verification method of identification codes based on wireless radio frequency technology. Background Art

[0002] With the continuous improvement of the world's scientific and technological level, the types of industrial and agricultural products are also increasing explosively, and the disadvantages of traditional barcodes, such as easy damage and small amount of data storage, are gradually being valued by people. At the same time, with the wide application of large-scale integrated circuits, RFID is gradually being needed by people. RFID anti-counterfeiting technology embeds microchips into products and uses smart electronic tags to identify various items. This tag is produced according to the principle of RFID wireless radio frequency identification. The tag and the reader exchange information through wireless radio frequency signals. Compared with traditional barcode technology, RFID can save more time, manpower and material resources, reduce production costs, and improve work efficiency. It is being regarded by more and more people as a replacement for barcode technology.

[0003] But at the same time, cases of piracy and infringement are emerging one after another, which has given birth to anti-counterfeiting RFID. RFID is usually smaller in size, not easy to find, and has a higher cost of writing and reading. It is not easy to be copied. In addition, in order to solve the problem of counterfeiting in the commercial field, RFID radio frequency identification technology is expandable, flexible, and safe. Combined with the one-time authentication mechanism, the initialization of the reader and the electronic tag and the verification of the electronic tag are studied, and a new type of safe anti-counterfeiting technology is developed and designed; but as RFID technology is mastered by people, RFID piracy is also common, which puts forward very high new stage requirements for RFID anti-counterfeiting technology. RFID consists of two parts: antenna and chip. In terms of material hardware, it is not easy to develop new technologies in the field of anti-counterfeiting to meet the requirements of the new stage of anti-counterfeiting. Therefore, it is urgent to design an anti-counterfeiting identification code verification method based on wireless radio frequency technology to meet the anti-counterfeiting requirements of the new stage. Summary of the invention

[0004] In view of the problems in the related art, the present invention proposes an anti-counterfeiting identification code verification method based on wireless radio frequency technology to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solution adopted by the present invention is as follows: A method for verifying an anti-counterfeiting identification code based on wireless radio frequency technology, the method for verifying an anti-counterfeiting identification code based on wireless radio frequency technology comprising: S1. Place several radio frequency tags in a reader / writer and use the reader / writer to identify the identification codes in the radio frequency tags; S2. Generate the three-dimensional spatial coordinates of the radio frequency anti-counterfeiting method and the identification code based on the byte information of the identification code, and classify the radio frequency anti-counterfeiting method; S3. The three-dimensional spatial coordinates of the identification code are combined with various wireless radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product.

[0006] Preferably, generating the radio frequency anti-counterfeiting method and the three-dimensional spatial coordinates of the identification code based on the byte information of the identification code, and classifying the radio frequency anti-counterfeiting method includes: S21, extracting the fourth byte of the identification code and performing logical operations in sequence to obtain a binary number of the fourth byte; S22, extracting the fifth byte, the sixth byte and the seventh byte of the identification code and converting them into decimal numbers to obtain the three-dimensional space coordinates of the identification code; S23, searching the predefined binary comparison table for the wireless radio frequency anti-counterfeiting method corresponding to the binary number of the fourth byte; S24. Classify products with different radio frequency anti-counterfeiting methods, and determine whether the classified products meet the identification code verification conditions.

[0007] Preferably, classifying products with different radio frequency anti-counterfeiting methods and determining whether the classified products meet the identification code verification conditions includes: S241. Classify the products based on the acquired radio frequency anti-counterfeiting method, and determine whether the quantity of each type of product meets the preset requirements; S242. If the quantity of the products does not meet the preset requirements, a prompt instruction is sent; if the quantity of the products meets the preset requirements, step S3 is executed.

[0008] Preferably, the three-dimensional spatial coordinates of the identification code are combined with various radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product, including: S31, extracting the three-dimensional spatial coordinates of the identification code and combining them with various radio frequency anti-counterfeiting methods to verify the identification code; S32. Compare the verification result with the preset conditions. If the preset conditions are met, the product is determined to be authentic; if the preset conditions are not met, the product is determined to be a counterfeit.

[0009] Preferably, the wireless radio frequency anti-counterfeiting method includes a spatial spherical anti-counterfeiting method, a spatial linear anti-counterfeiting method and a spatial ellipsoidal anti-counterfeiting method.

[0010] Preferably, verifying the identification code by combining the three-dimensional spatial coordinates of the identification code with a spatial spherical anti-counterfeiting method includes: Adding the three-dimensional space coordinates of the identification code to the three-dimensional space equation of the spherical surface to obtain a first set of equations, and determining whether the first set of equations has a solution; If the first set of equations has a solution, it means the product is genuine; if the first set of equations has no solution, it means the product is a counterfeit.

[0011] Preferably, verifying the identification code by combining the three-dimensional spatial coordinates of the identification code with a spatial linear anti-counterfeiting method includes: Generate a number of identification code space points based on the three-dimensional space coordinates of the identification code, and determine whether the number of identification code space points in the verification space are collinear; If the points of the identification code space are collinear, it means that the product is authentic, otherwise, it means that the product is a counterfeit.

[0012] Preferably, verifying the identification code by combining the three-dimensional spatial coordinates of the identification code with a spatial ellipsoid anti-counterfeiting method includes: Add the three-dimensional spatial coordinates of the identification code to the spatial ellipse analytical equation to obtain a three-variable equation system, and determine whether the three-variable equation system has a solution; If the three-variable equation system has a solution, it means that the product is authentic; if the three-variable equation system has no solution, it means that the product is a counterfeit.

[0013] Preferably, the expression of the first set of equations is: ; In the formula, r represents the parameters of the first system of equations; ( x 1, y 1, z 1) ( x 2, y 2, z 2) and ( x n , y n , z n ) represent the three-dimensional space coordinates of the identification code.

[0014] Preferably, the expression of the ternary equation system is: ; In the formula, ( x 1, y 1, z 1) ( x 2, y 2, z 2) and ( x n , y n , z n ) represent the three-dimensional space coordinates of the identification code; , and Both represent space ellipse parameters.

[0015] The beneficial effects of the present invention are: The present invention utilizes the fourth byte, fifth byte, sixth byte and seventh byte of the wireless radio frequency tag for anti-counterfeiting verification, which greatly increases the difficulty of counterfeiting and solves the problem that a single tag cannot be independently verified for authenticity and must be combined with a specific number of tags in the same group for collective verification. This greatly improves the security level of anti-counterfeiting technology, thereby enabling the anti-counterfeiting system to flexibly respond to different security requirements and anti-counterfeiting scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a flow chart of an anti-counterfeiting identification code verification method based on wireless radio frequency technology according to an embodiment of the present invention; Figure 2 It is a schematic diagram of a three-dimensional ellipsoid surface in an anti-counterfeiting identification code verification method based on wireless radio frequency technology according to an embodiment of the present invention; Figure 3 It is a schematic diagram of a three-dimensional spherical surface in an anti-counterfeiting identification code verification method based on wireless radio frequency technology according to an embodiment of the present invention; Figure 4 It is a schematic diagram of a three-dimensional straight line surface in an anti-counterfeiting identification code verification method based on wireless radio frequency technology according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and advantages of the present invention.

[0019] According to an embodiment of the present invention, a method for verifying an anti-counterfeiting identification code based on wireless radio frequency technology is provided.

[0020] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-Figure 4 As shown, according to the anti-counterfeiting identification code verification method based on wireless radio frequency technology according to an embodiment of the present invention, the anti-counterfeiting identification code verification method based on wireless radio frequency technology includes: S1. Place a number of radio frequency tags in a reader / writer, and use the reader / writer to identify the identification codes in the radio frequency tags.

[0021] It should be noted that the entire UID (unique identification code) of the RFID (radio frequency identification technology) is read out using a card reader, and the fourth bit of the UID is recorded, wherein an example of RFID reading the UID is shown in Table 1.

[0022] Table 1 Example of UID read by card reader S2. Generate a radio frequency anti-counterfeiting method and a three-dimensional spatial coordinate of the identification code based on the byte information of the identification code, and classify the radio frequency anti-counterfeiting method.

[0023] Among them, the radio frequency anti-counterfeiting method and the three-dimensional space coordinates of the identification code are generated based on the byte information of the identification code, and the radio frequency anti-counterfeiting method is classified into: S21, extracting the fourth byte of the identification code and performing logical operations in sequence to obtain a binary number of the fourth byte.

[0024] It should be noted that the fourth byte of the UID is recorded and processed as follows: 0x03 (0000 0011) and the fourth byte (0xA7 or 1010 0111) are logically ANDed, so that the first 6 bits of the fourth UID are all reset to 0, and finally the last two binary digits of the fourth byte are obtained (converted to 0000 0011 in the example), and then compared with Table 2 to obtain the corresponding anti-counterfeiting method (the example anti-counterfeiting method is ellipsoidal anti-counterfeiting).

[0025] Table 2 Binary number comparison table S22. Extract the fifth byte, the sixth byte, and the seventh byte of the identification code and convert them into decimal numbers to obtain the three-dimensional space coordinates of the identification code.

[0026] It should be noted that the information of the fifth, sixth and seventh bytes of the RFID is read and recorded by the card reader, and then converted into a decimal number. This array is the three-dimensional spatial coordinate value of the UID. Table 3 is an example of RFID reading UID: the three-dimensional coordinate value of the point it represents is (249, 51, 87).

[0027] Table 3 Example of UID read by card reader S23, searching the predefined binary comparison table for the wireless radio frequency anti-counterfeiting method corresponding to the binary number of the fourth byte; S24. Classify products with different radio frequency anti-counterfeiting methods, and determine whether the classified products meet the identification code verification conditions.

[0028] Among them, the classification of products with different radio frequency anti-counterfeiting methods and the determination of whether the classified products meet the identification code verification conditions include: S241. Classify the products based on the acquired radio frequency anti-counterfeiting method, and determine whether the quantity of each type of product meets the preset requirements; S242. If the quantity of the products does not meet the preset requirements, a prompt instruction is sent; if the quantity of the products meets the preset requirements, step S3 is executed.

[0029] It should be noted that products with different anti-counterfeiting methods are classified. If the quantity requirement is not met, the application prompts "continue to place samples". If the quantity requirement is met, UID verification is performed. The classification of products with different anti-counterfeiting methods includes: The binary result obtained after comparison according to Table 2 is subjected to a logical AND operation with 0000 0001. If the result is 0000 0000, it is a spatial linear anti-counterfeiting method. Then, the samples of the spatial linear anti-counterfeiting method are removed, and the binary result obtained after comparison according to Table 2 is subjected to a logical AND operation with the binary 0000 0010. If the result is 0000 0000, it is spherical anti-counterfeiting, otherwise it is ellipsoidal anti-counterfeiting. The process is shown in Table 4.

[0030] Table 4 Classification of anti-counterfeiting methods As shown in Table 5, the logical AND operation is essentially a Boolean operation that operates on each binary bit of two data. Table 5 is the result of the logical AND operation (the rule can be expressed as the same 1 is 1, and the rest are 0).

[0031] Table 5 Logical AND operation table S3. The three-dimensional spatial coordinates of the identification code are combined with various wireless radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product.

[0032] Among them, the three-dimensional spatial coordinates of the identification code are combined with various wireless radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product, including: S31, extracting the three-dimensional spatial coordinates of the identification code and combining them with various radio frequency anti-counterfeiting methods to verify the identification code; S32. Compare the verification result with the preset conditions. If the preset conditions are met, the product is determined to be authentic; if the preset conditions are not met, the product is determined to be a counterfeit.

[0033] Among them, wireless radio frequency anti-counterfeiting methods include spatial spherical anti-counterfeiting method, spatial linear anti-counterfeiting method and spatial ellipsoidal anti-counterfeiting method.

[0034] The three-dimensional spatial coordinates of the identification code are combined with the spatial spherical anti-counterfeiting method to verify the identification code, including: The three-dimensional space coordinates of the identification code are added to the three-dimensional space equation of the spherical surface to obtain a first set of equations, and it is determined whether the first set of equations has a solution.

[0035] If the first set of equations has a solution, it means the product is genuine; if the first set of equations has no solution, it means the product is a counterfeit.

[0036] It should be noted that the spatial spherical anti-counterfeiting method verification includes: if this anti-counterfeiting method is adopted, at least two sets of tags are used for verification, firstly, the three-dimensional coordinates of n (n>=2) sets of RFID are obtained ( x 1, y 1, z 1) ( x 2, y 2, z 2) ,……, ( x n , y n , z n ), since the three-dimensional space equation of the sphere with the center of the sphere as the origin is , so substituting the UID coordinates of the RFID into the n-dimensional equation system: ; In the formula, r is an undetermined parameter. If the n-dimensional equation system has a solution, it means that the RFID is true. If the n-dimensional equation system has no solution, it means that the RFID is a counterfeit. If the n-dimensional equation system has a solution, we can get: ; The three-dimensional spatial coordinates of the identification code are combined with the spatial linear anti-counterfeiting method to verify the identification code, including: Generate a number of identification code space points based on the three-dimensional space coordinates of the identification code, and determine whether the number of identification code space points in the verification space are collinear; If the points of the identification code space are collinear, it means that the product is authentic, otherwise, it means that the product is a counterfeit.

[0037] It should be noted that the spatial linear anti-counterfeiting method includes: if this anti-counterfeiting method is adopted, at least 3 sets of tags are used for verification. First, the three-dimensional coordinates of n (n>=3) sets of RFID are obtained ( x 1, y 1, z 1) ( x 2, y 2, z 2) ,……, ( x n , yn , z n ).

[0038] Verification in space n There are many ways to determine whether the UID points are collinear. The verification method and derivation process provided by the present invention include: set up n The UID points are P 1. P 2.…… P n , can be composed of ( n -1) Group vector ;Will Respectively and behind n -2 sets of vectors to do the cross product (i.e. find , ), and then with Do the dot product and make the dot product result equal to 0 and explain P 1. P 2 and P n The three points are collinear, so the collinearity condition can be simplified to any n -1st order determinant , so find the rank of matrix B r ( B ),like r ( B ) = 2, it means n If the UID points are collinear, the product is genuine, otherwise the product is counterfeit. The expression of matrix B is: ; The three-dimensional spatial coordinates of the identification code are combined with the spatial ellipsoid anti-counterfeiting method to verify the identification code, including: The three-dimensional spatial coordinates of the identification code are added to the spatial ellipse analytical equation to obtain a ternary equation group, and it is determined whether the ternary equation group has a solution.

[0039] If the three-variable equation system has a solution, it means that the product is authentic; if the three-variable equation system has no solution, it means that the product is a counterfeit.

[0040] It should be noted that the spatial ellipsoid anti-counterfeiting method verification includes: if this anti-counterfeiting method is adopted, at least 4 sets of tags are used for verification, firstly, the three-dimensional coordinates of n (n>=3) sets of RFID are obtained ( x 1, y 1, z 1) ( x 2, y 2, z 2) ,……, ( x n ,y n , z n ), since the analytic equation of the space ellipse is , substituting the three-dimensional coordinates of n sets of labels into the n-dimensional ternary equation system, the expression is: ; It should be noted that in the above-established n-dimensional ternary equation system, the known parameters are: , so the equation is , and The n-dimensional three-variable system.

[0041] According to matrix-related knowledge, if this system of equations has a unique solution, the rank of the coefficient matrix C and the augmented matrix C' of the coefficient matrix are both 3, where the expression of the coefficient matrix C is: ; The expression of the augmented matrix C' is: ; From the above, we can see that if r(C)≠r(C') or r(C)≠r(C')≠3, the product is a counterfeit, otherwise the product is authentic.

[0042] The present invention provides an anti-counterfeiting identification code verification method based on wireless radio frequency technology. For example, in the 15693 protocol, the UID has a total of 8 bytes, and the first byte UID is fixed to E0, the second byte UID is the manufacturer code number, and the third byte is the product category number.

[0043] The present invention provides an anti-counterfeiting method determined by setting the fourth byte of the UID, and three anti-counterfeiting methods are determined by the fifth, sixth and seventh bytes of the UID, specifically including a spatial spherical anti-counterfeiting method with the center of the sphere as the origin, a spatial straight line anti-counterfeiting method and a spatial ellipsoidal anti-counterfeiting method with the center as the origin; the anti-counterfeiting method for anti-counterfeiting through the fifth, sixth and seventh bytes of the UID is different from the conventional anti-counterfeiting method in that a single RFID cannot distinguish the authenticity, and according to the anti-counterfeiting method determined by the fourth byte, different numbers of corresponding same groups of RFID are required for identification (2 groups of RFID for spherical anti-counterfeiting, 3 groups of RFID for straight line anti-counterfeiting, and 4 groups of RFID for ellipsoidal anti-counterfeiting).

[0044] To sum up, with the help of the above-mentioned technical scheme of the present invention, the present invention uses the fourth byte, fifth byte, sixth byte and seventh byte of the wireless radio frequency tag for anti-counterfeiting verification, which greatly increases the difficulty of counterfeiting, solves the problem that a single label cannot be independently verified for authenticity and must be combined with a specific number of labels in the same group for collective verification, greatly improves the security level of anti-counterfeiting technology, and enables the anti-counterfeiting system to flexibly respond to different security needs and anti-counterfeiting scenarios.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for verifying an anti-counterfeiting identification code based on wireless radio frequency technology, characterized in that: The anti-counterfeiting identification code verification method based on wireless radio frequency technology includes: S1. Place several radio frequency tags in a reader / writer and use the reader / writer to identify the identification codes in the radio frequency tags; S2. Generate the three-dimensional spatial coordinates of the radio frequency anti-counterfeiting method and the identification code based on the byte information of the identification code, and classify the radio frequency anti-counterfeiting method; S3. The three-dimensional spatial coordinates of the identification code are combined with various wireless radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product.

2. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 1, characterized in that: The generating of the radio frequency anti-counterfeiting method and the three-dimensional space coordinates of the identification code based on the byte information of the identification code, and classifying the radio frequency anti-counterfeiting method includes: S21, extracting the fourth byte of the identification code and performing logical operations in sequence to obtain a binary number of the fourth byte; S22, extracting the fifth byte, the sixth byte and the seventh byte of the identification code and converting them into decimal numbers to obtain the three-dimensional space coordinates of the identification code; S23, searching the predefined binary comparison table for the wireless radio frequency anti-counterfeiting method corresponding to the binary number of the fourth byte; S24. Classify products with different radio frequency anti-counterfeiting methods, and determine whether the classified products meet the identification code verification conditions.

3. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 2 is characterized in that: The method of classifying products with different radio frequency anti-counterfeiting methods and determining whether the classified products meet the identification code verification conditions includes: S241. Classify the products based on the acquired radio frequency anti-counterfeiting method, and determine whether the quantity of each type of product meets the preset requirements; S242. If the quantity of the products does not meet the preset requirements, a prompt instruction is sent; if the quantity of the products meets the preset requirements, step S3 is executed.

4. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 3 is characterized in that: The three-dimensional spatial coordinates of the identification code are combined with various radio frequency anti-counterfeiting methods to verify the identification code to determine the authenticity of the product, including: S31, extracting the three-dimensional spatial coordinates of the identification code and combining them with various radio frequency anti-counterfeiting methods to verify the identification code; S32. Compare the verification result with the preset conditions. If the preset conditions are met, the product is determined to be authentic; if the preset conditions are not met, the product is determined to be a counterfeit.

5. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 4 is characterized in that: The wireless radio frequency anti-counterfeiting method includes a spatial spherical anti-counterfeiting method, a spatial straight line anti-counterfeiting method and a spatial ellipsoidal anti-counterfeiting method.

6. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 5, characterized in that: The verification of the identification code by combining the three-dimensional spatial coordinates of the identification code with the spatial spherical anti-counterfeiting method includes: Adding the three-dimensional space coordinates of the identification code to the three-dimensional space equation of the spherical surface to obtain a first set of equations, and determining whether the first set of equations has a solution; If the first set of equations has a solution, it means the product is genuine; if the first set of equations has no solution, it means the product is a counterfeit.

7. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 6, characterized in that: The verification of the identification code by combining the three-dimensional spatial coordinates of the identification code with the spatial straight line anti-counterfeiting method includes: Generate a number of identification code space points based on the three-dimensional space coordinates of the identification code, and determine whether the number of identification code space points in the verification space are collinear; If the points of the identification code space are collinear, it means that the product is authentic, otherwise, it means that the product is a counterfeit.

8. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 7, characterized in that: The verification of the identification code by combining the three-dimensional spatial coordinates of the identification code with the spatial ellipsoid anti-counterfeiting method includes: Add the three-dimensional spatial coordinates of the identification code to the spatial ellipse analytical equation to obtain a three-variable equation system, and determine whether the three-variable equation system has a solution; If the three-variable equation system has a solution, it means that the product is authentic; if the three-variable equation system has no solution, it means that the product is a counterfeit.

9. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 8, characterized in that: The expression of the first set of equations is: ； In the formula, r represents the parameters of the first system of equations; ( x 1, y 1, z 1) ( x 2, y 2, z 2) and ( x n , y n , z n ) represent the three-dimensional space coordinates of the identification code.

10. The anti-counterfeiting identification code verification method based on wireless radio frequency technology according to claim 9, characterized in that: The expression of the three-variable equation system is: ； In the formula, ( x 1, y 1, z 1) ( x 2, y 2, z 2) and ( x n , y n , z n ) represent the three-dimensional space coordinates of the identification code; , and Both represent space ellipse parameters.

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