CN110009378B - Trademark anti-counterfeiting tracing method and device - Google Patents
Trademark anti-counterfeiting tracing method and device Download PDFInfo
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- CN110009378B CN110009378B CN201910302025.XA CN201910302025A CN110009378B CN 110009378 B CN110009378 B CN 110009378B CN 201910302025 A CN201910302025 A CN 201910302025A CN 110009378 B CN110009378 B CN 110009378B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06056—Constructional details the marking comprising a further embedded marking, e.g. a 1D bar code with the black bars containing a smaller sized coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses a trademark anti-counterfeiting tracing method and device, the method comprises the steps of obtaining trademark images and security information which need to be embedded with the security information, obtaining a series of trademark images embedded with the security information, performing spray printing on the trademark images, obtaining the trademark images of the commodity to be queried, judging whether anti-counterfeiting query conditions are met, if so, performing image recognition and image correction on the trademark images of the commodity to be queried, and performing security information recognition on the trademark images after the image correction, if the recognition is successful, generating recognition results, and obtaining security information codes. The device comprises a coding module, an acquisition module and a checking module, and is used for realizing the method. The method provided by the invention can ensure that the trademark or the pattern contains unique non-repeated codes, prevent the tracing code from being destroyed, and further realize tracing and protecting the product so as to prevent the product from channeling.
Description
[ field of technology ]
The invention relates to the technical field of trademark anti-counterfeiting, in particular to a trademark anti-counterfeiting tracing method and a device applied to the method.
[ background Art ]
At present, as the requirements of consumers on the quality and safety of purchased products are higher and higher, and the health consciousness and the quality safety consciousness of the consumers are also continuously improved, the quality and the safety of the products are directly influenced in the production process and the transportation process of the products, the quality safety problem of the products becomes increasingly the focus of public and whole society, becomes an important civil problem, and attracts high importance of the country, the work of enhancing the safety supervision of the food quality is increasingly important, and meanwhile, the traceability information of the purchased products is increasingly focused by the consumers.
The prior art is to generate a corresponding two-dimensional code or bar code according to basic information of a product, wherein the basic information comprises: the name, the production time, the manufacturer and the like of the product take the basic information of the product as the traceability information of the product, and a user can obtain the traceability information of the product displayed in the form of characters or pictures by scanning the two-dimensional code or the bar code on the product package, namely, the traceability information of the product is stored and displayed in the form of the characters or the pictures in the related technology.
However, although the two-dimensional code and the bar code technology can realize product tracing, the two-dimensional code and the bar code technology change the appearance of the product, are easy to imitate, and are extremely easy to be damaged by lawless persons to lose the anti-channeling function.
[ invention ]
The invention mainly aims to provide a trademark anti-counterfeiting tracing method capable of preventing tracing codes from being destroyed, and further tracing and protecting commodities so as to prevent product channeling.
The invention further aims to provide a trademark anti-counterfeiting tracing device which can prevent tracing codes from being destroyed, and further trace and protect commodities so as to prevent product channeling.
In order to achieve the main purpose, the trademark anti-counterfeiting tracing method provided by the invention comprises the steps of obtaining trademark images and security information which need to be embedded with the security information, and obtaining a series of trademark images embedded with the security information, wherein the security information is a security information code with a fixed length and not repeated; carrying out spray printing of trademark images on commodities; acquiring trademark images of goods to be inquired; judging whether the anti-counterfeiting query condition is met, if so, carrying out image recognition and image correction on the trademark image of the commodity to be queried, and carrying out security information recognition on the trademark image after the image correction; if the identification is successful, an identification result is generated, and the safety information code is obtained.
Further, whether the trademark image with the security information to be embedded meets the condition of security information embedding is judged, if yes, the corresponding security information is embedded into the trademark image.
The further scheme is that the security information is bound with the user information and commodity information, and the commodity information is bound with the return webpage link.
Further, whether the width and the height of the trademark image of the commodity to be inquired are larger than a first preset threshold value or not is judged, whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than a second preset threshold value or not is judged, and if yes, whether the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition can be determined.
According to the further scheme, according to the identification result, relevant information corresponding to the identification result is determined in a database; and sending the relevant information to the front-end application program so that the front-end application program can analyze the relevant information and display the identification result page.
Therefore, the trademark anti-counterfeiting tracing method provided by the invention can form a non-repeated fixed-length security information code according to the preset coding rule, the security information code information is embedded into a trademark image or pattern, and the variable information is printed on the commodity. When the commodity is subjected to anti-counterfeiting inquiry, a trademark image or pattern of the commodity is obtained, the commodity is subjected to image recognition and correction according to the received image or pattern, the corrected image is subjected to safety information recognition, and after the recognition is successful, detailed information and tracing information of the commodity are returned, so that anti-counterfeiting tracing of the commodity can be completed.
Therefore, the method can combine the digital code spraying technology to form variable spray printing of the trademark or pattern, realize 'one-picture one-code' of the trademark or pattern, namely, each trademark or pattern contains unique non-repeated codes, prevent the source tracing code from being destroyed, and further realize product tracing and product protection so as to prevent product channeling.
In order to achieve the other purpose, the invention also provides a trademark anti-counterfeiting traceability device, which comprises a coding module, a control module and a control module, wherein the coding module is used for acquiring trademark images and security information which need to be embedded with the security information and obtaining a series of trademark images embedded with the security information, and the security information is a security information code with a fixed length and not repeated; the coding module is used for carrying out spray printing on trademark images of the commodities; the acquisition module is used for acquiring trademark images of the commodities to be inquired; the checking module is used for judging whether the anti-counterfeiting query condition is met, if so, carrying out image recognition and image correction on the trademark image of the commodity to be queried, and carrying out safety information recognition on the trademark image after the image correction; if the identification is successful, an identification result is generated, and the safety information code is obtained.
Further, whether the trademark image with the security information to be embedded meets the condition of security information embedding is judged, if yes, the corresponding security information is embedded into the trademark image.
The further scheme is that the security information is bound with the user information and commodity information, and the commodity information is bound with the return webpage link.
Further, whether the width and the height of the trademark image of the commodity to be inquired are larger than a first preset threshold value or not is judged, whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than a second preset threshold value or not is judged, and if yes, whether the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition can be determined.
According to the further scheme, according to the identification result, relevant information corresponding to the identification result is determined in a database; and sending the relevant information to the front-end application program so that the front-end application program can analyze the relevant information and display the identification result page.
Therefore, the trademark anti-counterfeiting traceability device forms a non-repeated fixed-length safety information code according to the preset coding rule, embeds the safety information code information into trademark images or patterns, and performs variable information spray printing on commodities. When the commodity is subjected to anti-counterfeiting inquiry, a trademark image or pattern of the commodity is obtained, the commodity is subjected to image recognition and correction according to the received image or pattern, the corrected image is subjected to safety information recognition, and after the recognition is successful, detailed information and tracing information of the commodity are returned, so that anti-counterfeiting tracing of the commodity can be completed.
Therefore, the device can code and spray-print safety information invisible to human eyes in a specified area of a product trademark, and a terminal is used for photographing the trademark or pattern pictures, so that the safety information in the trademark can be read, the trademark is verified, infringement is identified, and product tracing is realized.
[ description of the drawings ]
Fig. 1 is a flow chart of an embodiment of a trademark anti-counterfeiting tracing method of the invention.
Fig. 2 is a schematic block diagram of an embodiment of a trademark security traceability device according to the present invention.
[ detailed description ] of the invention
An embodiment of a trademark anti-counterfeiting tracing method comprises the following steps:
referring to fig. 1, when performing anti-counterfeiting tracing on a commodity, the trademark anti-counterfeiting tracing method of the embodiment first executes step S1 to obtain a trademark image and security information to be embedded with security information, and obtains a series of trademark images embedded with security information, where the security information is a security information code with a fixed length that is not repeated. In this embodiment, before acquiring the trademark image and the security information that need to be embedded with the security information, it is further required to determine whether the trademark image that needs to be embedded with the security information satisfies the condition of security information embedding, if so, the corresponding security information is embedded with the trademark image. Specifically, the size, pattern characteristics, printing process and the like of the trademark image or pattern to be embedded with the security information are evaluated and judged, and an evaluation result is obtained, wherein the evaluation result characterizes whether the trademark image or pattern can be embedded with the security information. If not, the security information embedding operation is terminated, and if yes, the next step is performed.
Of course, the pattern in the present embodiment may be a trademark pattern, or may be a pattern other than a trademark pattern, which can realize security information embedding. In short, before embedding security information, it is necessary to evaluate a trademark or pattern of a user and then determine whether to embed the security information according to the evaluation result, so that efficiency of embedding the security information is ensured.
In the present embodiment, after a series of brand images embedded with security information are obtained, further execution is performed: binding the security information with the user information and commodity information, and binding the commodity information with the return webpage link. By the method, the security information can be bound with the user information, commodity information and webpage links, so that information required by the user can be determined according to the security information.
After the security information is embedded, step S2 is executed to spray-print trademark images on the commodity. In this embodiment, variable spray printing can be implemented on a trademark or other patterns by using a spray printing system, and the spray printing system is composed of three parts, namely a spray nozzle (gray spray nozzle), a spray code control system and a spray code platform, and can perform spray printing of variable information on trademark images or patterns of commodities according to preset spray code rules. Before the trademark images of the commodity are subjected to spray printing, the number of the trademark images or patterns which are embedded with different security information and are corresponding to the number of the trademark images or patterns to be subjected to spray printing is also obtained, namely after the trademark images or patterns which meet the conditions are obtained, security information encoding is carried out according to encoding rules and product orders, then the security information is embedded into the trademark images or patterns through a spray printing system, and after a spray printing instruction is finished by a spray head, the trademark images or patterns which are finished by spray printing and contain security information encoding information are obtained. Of course, the inkjet printing system of the present embodiment may be a conventional printing apparatus such as a printer.
Next, step S3 is executed to acquire a trademark image of the commodity to be queried. In the embodiment of the invention, the user photographs the trademark or pattern image of the commodity outer package through the handheld terminal, and the terminal can be a mobile phone or other equipment with a photographing function. After the terminal captures the image, the terminal uploads the image to the verification server.
Then, step S4 is executed to determine whether the anti-counterfeit query condition is satisfied. The anti-counterfeiting query conditions in this embodiment include determining whether the width and the height of the trademark image of the commodity to be queried are greater than a first preset threshold, and determining whether the compression ratio of the image quality of the trademark image of the commodity to be queried is greater than a second preset threshold, if so, determining that the trademark image of the commodity to be queried meets the anti-counterfeiting query conditions; if the width and the height of the image are smaller than the first preset threshold, the process can be ended and feedback information is given without judging whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than the second preset threshold, and the trademark image of the commodity to be inquired is acquired again, namely, the step S3 is executed again.
If the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition, executing step S5, and carrying out image recognition and image correction on the trademark image of the commodity to be inquired. The image correction method comprises an image preprocessing step, a positioning step and a correction step, wherein the image preprocessing step is used for carrying out scaling processing on an original image according to preset scaling conditions when the original image uploaded by a terminal (namely a trademark image of the embodiment) is acquired, so as to obtain an input image; the positioning step is used for determining each boundary line of the input image and determining the vertex of the input image according to the boundary line; the correction step is used for determining correction parameters between the original image and the input image according to the vertex coordinates in the original image and the vertex coordinates of the input image, and then judging whether the size of the input image is larger than a preset size or not; if yes, forward correction is carried out on the input image according to the correction parameters, and if not, reverse correction is carried out on the input image according to the correction parameters.
Then, executing step S6, carrying out safety information identification on the trademark image after the image correction, and if the identification fails, outputting prompt information to prompt a user; if the identification is successful, step S7 is executed to generate an identification result and obtain a security information code. Wherein, after the security information is encoded, the method further comprises the following steps: according to the identification result, determining relevant information corresponding to the identification result in a database; and sending the relevant information to the front-end application program so that the front-end application program can analyze the relevant information and display the identification result page. And the relevant information can be obtained according to the identification result and then sent to the front-end application program, so that the user can check.
In this embodiment, after the identification is successful and the security information is encoded, the method further includes: and sending commodity information stored in the background and user interaction data to the front-end application program according to the data query request of the user.
In addition, after the safety information is successfully identified, commodity information corresponding to the safety information is extracted, a return webpage link corresponding to the commodity information is found, and the webpage corresponding to the return webpage link is developed according to personalized customization of a user and can be an interactive game, a lottery drawing and the like. And returning the checked information and the returned webpage links to the user, wherein the user receives the webpage reading, and the user can click to participate in the webpage reading, so that the user can read the information and participate in the interaction through the webpage, and the use experience of the user is improved. After finishing the variable jet printing of the trademark image or pattern and finishing the binding of the security information coding information, the trademark image or pattern has unique invisible security information coding information, after acquiring the commodity, a user shoots the trademark or pattern by using the handheld terminal, and uploads the shot picture to the checking server, and after the checking server is successfully identified, the system returns detailed information and tracing information of the commodity, wherein the detailed information comprises raw material sources, production addresses, production time, sales areas and the like.
For example, if a merchant desires to develop consumption interactive functions such as interactive marketing, while returning merchandise information, a red package, a voucher, a point, etc. can be returned, thereby stimulating user participation and increasing consumer viscosity. In addition, the fun games like 'lucky turnplate' can be returned to improve the fun.
Therefore, the trademark anti-counterfeiting tracing method provided by the invention can form a non-repeated fixed-length security information code according to the preset coding rule, the security information code information is embedded into a trademark image or pattern, and the variable information is printed on the commodity. When the commodity is subjected to anti-counterfeiting inquiry, a trademark image or pattern of the commodity is obtained, the commodity is subjected to image recognition and correction according to the received image or pattern, the corrected image is subjected to safety information recognition, and after the recognition is successful, detailed information and tracing information of the commodity are returned, so that anti-counterfeiting tracing of the commodity can be completed.
Therefore, the method can combine the digital code spraying technology to form variable spray printing of the trademark or pattern, realize 'one-picture one-code' of the trademark or pattern, namely, each trademark or pattern contains unique non-repeated codes, prevent 'source tracing code' from being destroyed, further realize product tracing and protect products, and prevent product channeling.
An embodiment of a trademark anti-counterfeiting traceability device:
fig. 2 is a schematic block diagram of an embodiment of a trademark anti-counterfeiting traceability device according to the present invention. The system comprises a coding module 10, a coding module 20, a collecting module 30 and a checking module 40.
The encoding module 10 is configured to obtain a trademark image in which security information is to be embedded and security information, and obtain a series of trademark images in which the security information is embedded, wherein the security information is a fixed-length security information code that is not repeated.
The coding module 20 is used for performing spray printing of trademark images on commodities.
The acquisition module 30 is used for acquiring trademark images of the goods to be queried.
The checking module 40 is configured to determine whether an anti-counterfeit query condition is satisfied, if yes, perform image recognition and image correction on the trademark image of the commodity to be queried, and perform security information recognition on the trademark image after image correction; if the identification is successful, an identification result is generated, and the safety information code is obtained.
Further, the encoding module 10 further performs, before acquiring the trademark image and the security information in which the security information needs to be embedded: judging whether the trademark image with the security information to be embedded meets the condition of security information embedding, if so, embedding the corresponding security information into the trademark image.
Further, the encoding module 10 is configured to, after obtaining a series of trademark images embedded with security information, further perform: binding the security information with the user information and commodity information, and binding the commodity information with the return webpage link.
Further, the checking module 40 is configured to determine whether the anti-counterfeit query condition is satisfied, and includes: judging whether the width and the height of the trademark image of the commodity to be inquired are larger than a first preset threshold value, judging whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than a second preset threshold value, and if so, determining that the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition.
Further, the checking module 40 is configured to generate a recognition result if the recognition is successful, and further perform: according to the identification result, determining relevant information corresponding to the identification result in a database; and sending the relevant information to the front-end application program so that the front-end application program can analyze the relevant information and display the identification result page.
Therefore, the trademark anti-counterfeiting traceability device forms a non-repeated fixed-length safety information code according to the preset coding rule, embeds the safety information code information into trademark images or patterns, and performs variable information spray printing on commodities. When the commodity is subjected to anti-counterfeiting inquiry, a trademark image or pattern of the commodity is obtained, the commodity is subjected to image recognition and correction according to the received image or pattern, the corrected image is subjected to safety information recognition, and after the recognition is successful, detailed information and tracing information of the commodity are returned, so that anti-counterfeiting tracing of the commodity can be completed.
Therefore, the device can code and spray-print safety information invisible to human eyes in a specified area of a product trademark, and a terminal is used for photographing the trademark or pattern pictures, so that the safety information in the trademark can be read, the trademark is verified, infringement is identified, and product tracing is realized.
It should be noted that the foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made to the present invention by using the concept fall within the scope of the present invention.
Claims (6)
1. The trademark anti-counterfeiting tracing method is characterized by comprising the following steps of:
acquiring a trademark image and security information which need to be embedded with the security information, and acquiring a series of trademark images embedded with the security information, wherein the security information is a non-repeated fixed-length security information code;
carrying out spray printing of trademark images on commodities; before the trademark images of the commodities are subjected to spray printing, the number of the trademark images or patterns which are embedded with different security information and correspond to the number of the trademark images or patterns to be subjected to spray printing is also obtained, namely after the trademark images or patterns which meet the conditions are obtained, security information encoding is carried out according to encoding rules and product orders, then the security information is embedded into the trademark images or patterns through a spray printing system, and after a spray printing instruction is finished by a spray head, the trademark images or patterns which are finished by spray printing and contain security information encoding information are obtained;
acquiring trademark images of goods to be inquired;
judging whether the anti-counterfeiting query condition is met, if so, carrying out image recognition and image correction on the trademark image of the commodity to be queried, and carrying out security information recognition on the trademark image after the image correction; judging whether the width and the height of the trademark image of the commodity to be inquired are larger than a first preset threshold value, judging whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than a second preset threshold value, if so, determining that the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition;
the image correction comprises an image preprocessing step, a positioning step and a correction step, wherein the image preprocessing step is used for carrying out scaling processing on an original image according to preset scaling conditions when the original image uploaded by a terminal is acquired, so as to obtain an input image; the positioning step is used for determining each boundary line of the input image and determining the vertex of the input image according to the boundary line; the correction step is used for determining correction parameters between the original image and the input image according to the vertex coordinates in the original image and the vertex coordinates of the input image, and then judging whether the size of the input image is larger than a preset size or not; if yes, carrying out forward correction on the input image according to the correction parameters, and if not, carrying out reverse correction on the input image according to the correction parameters;
if the identification is successful, an identification result is generated, and the safety information code is obtained.
2. The brand anti-counterfeiting tracing method according to claim 1, wherein after obtaining a series of brand images embedded with the security information, further performing:
binding the security information with user information and commodity information, and binding the commodity information with a return webpage link.
3. The trademark security traceability method of claim 1, further comprising, if the identification is successful, generating an identification result, and after obtaining the security information code, performing:
according to the identification result, determining relevant information corresponding to the identification result in a database;
and sending the related information to a front-end application program so that the front-end application program analyzes the related information and displays a recognition result page.
4. The utility model provides a trade mark anti-fake traceability device which characterized in that includes:
the coding module is used for acquiring trademark images and security information which need to be embedded with the security information and obtaining a series of trademark images embedded with the security information, wherein the security information is a non-repeated security information code with fixed length;
the coding module is used for carrying out spray printing on trademark images of the commodities; before the trademark images of the commodities are subjected to spray printing, the number of the trademark images or patterns which are embedded with different security information and correspond to the number of the trademark images or patterns to be subjected to spray printing is also obtained, namely after the trademark images or patterns which meet the conditions are obtained, security information encoding is carried out according to encoding rules and product orders, then the security information is embedded into the trademark images or patterns through a spray printing system, and after a spray printing instruction is finished by a spray head, the trademark images or patterns which are finished by spray printing and contain security information encoding information are obtained; the acquisition module is used for acquiring trademark images of the commodities to be inquired;
the checking module is used for judging whether the anti-counterfeiting query condition is met, if so, carrying out image recognition and image correction on the trademark image of the commodity to be queried, and carrying out safety information recognition on the trademark image after the image correction; judging whether the width and the height of the trademark image of the commodity to be inquired are larger than a first preset threshold value, judging whether the compression ratio of the image quality of the trademark image of the commodity to be inquired is larger than a second preset threshold value, if so, determining that the trademark image of the commodity to be inquired meets the anti-counterfeiting inquiry condition; the image correction comprises an image preprocessing step, a positioning step and a correction step, wherein the image preprocessing step is used for carrying out scaling processing on an original image according to preset scaling conditions when the original image uploaded by a terminal is acquired, so as to obtain an input image; the positioning step is used for determining each boundary line of the input image and determining the vertex of the input image according to the boundary line; the correction step is used for determining correction parameters between the original image and the input image according to the vertex coordinates in the original image and the vertex coordinates of the input image, and then judging whether the size of the input image is larger than a preset size or not; if yes, carrying out forward correction on the input image according to the correction parameters, and if not, carrying out reverse correction on the input image according to the correction parameters;
if the identification is successful, an identification result is generated, and the safety information code is obtained.
5. The brand anti-counterfeiting traceability device according to claim 4, wherein the encoding module is configured to, after obtaining a series of brand images embedded in the security information, further perform:
binding the security information with user information and commodity information, and binding the commodity information with a return webpage link.
6. The brand anti-counterfeiting traceability device according to claim 4, wherein the checking module is configured to generate a recognition result if the recognition is successful, and further perform, after obtaining the security information code:
according to the identification result, determining relevant information corresponding to the identification result in a database;
and sending the related information to a front-end application program so that the front-end application program analyzes the related information and displays a recognition result page.
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| CN105550891A (en) * | 2016-03-01 | 2016-05-04 | 源品汇信息科技（北京）股份有限公司 | Product anti-fake source tracing method and system |
| CN106022805A (en) * | 2016-05-25 | 2016-10-12 | 华中科技大学 | Anti-fake traceablility system and method based on label reading |
| CN107194449A (en) * | 2017-06-19 | 2017-09-22 | 南京林业大学 | The antiforge and information source tracing method combined based on digital watermarking and Quick Response Code |
| CN109165958A (en) * | 2018-08-17 | 2019-01-08 | 珠海丹德图像技术有限公司 | A kind of commodity traceability system and method based on image information safe practice |
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