An Internet of Things-based traceable anti-counterfeiting method for liquor packaging

Abstract

This solution belongs to the field of liquor packaging anti-counterfeiting, and specifically relates to an anti-counterfeiting method for traceable liquor packaging based on the Internet of Things. First, a conductive film is made by randomly adding conductive materials, and then m leads are randomly drawn from the conductive film. These leads are connected to the RFID tag, and the RFID tag and the conductive film are fixedly connected inside the liquor packaging box. Then, the unique identification code of the chip of the RFID tag is denoted as X. The RFID tag randomly selects n leads from the m leads through X and generates n non-repeating numbers from 1 to 8 as the leads for n resistance measurements. The resistance values measured by the n leads are the measured values R of the conductive film. This solution solves four problems of the liquor packaging anti-counterfeiting method, namely, the anti-counterfeiting technology is easy to be imitated, the cost of anti-counterfeiting means identification is high, the information traceability system of the anti-counterfeiting system is imperfect, and the combination of online and offline anti-counterfeiting is not tight enough, thus solving problems such as the limited anti-counterfeiting effect of the liquor packaging anti-counterfeiting method.

Description

Technical Field

[0001] This solution belongs to the field of liquor packaging anti-counterfeiting, and specifically relates to an Internet of Things-based traceable liquor packaging anti-counterfeiting method. Background Art

[0002] Liquor packaging anti-counterfeiting is of great significance. It not only protects the rights and interests, health and safety of consumers, but also maintains the brand image and corporate interests, playing a key role in promoting the healthy development and fair competition of the industry. Effective anti-counterfeiting measures can improve the product traceability ability, curb counterfeit and shoddy products, ensure food safety, maintain tax order, and promote relevant technological innovations. At the same time, it enhances the international competitiveness of Chinese liquor, facilitates market supervision, and improves the overall consumption experience. In short, liquor packaging anti-counterfeiting is an important means to ensure product quality, maintain market order, and promote industry development, with far-reaching and extensive significance.

[0003] Existing liquor packaging anti-counterfeiting methods face multiple challenges: traditional anti-counterfeiting technologies are easy to be imitated, and the identification cost of advanced anti-counterfeiting means is high; the information of anti-counterfeiting systems of each brand is isolated, and the traceability system is imperfect; there is a lack of unified standards in the industry, and the combination of online and offline anti-counterfeiting is not close enough; these problems lead to limited anti-counterfeiting effects and it is difficult to comprehensively cope with the increasingly complex counterfeiting challenges. It is urgent for the industry, enterprises and regulatory authorities to work together to adopt new technologies and improve systems to enhance the overall efficiency of liquor packaging anti-counterfeiting. Summary of the Invention

[0004] The purpose of this solution is to provide an Internet of Things-based traceable liquor packaging anti-counterfeiting method to solve problems such as the easy imitation of anti-counterfeiting technologies, the high identification cost of anti-counterfeiting means, the imperfect information traceability system of anti-counterfeiting systems, and the limited anti-counterfeiting effect caused by the insufficient combination of online and offline anti-counterfeiting.

[0005] To achieve the above purpose, this solution provides an Internet of Things-based traceable liquor packaging anti-counterfeiting method, including the following steps:

[0006] S10: Produce a conductive film by randomly adding conductive materials, then randomly lead out m leads from the conductive film, connect these leads to the RFID tag, and fixedly connect the RFID tag and the conductive film to the liquor packaging box;

[0007] S20: Denote the unique identification code of the chip of the RFID tag as X. The RFID tag randomly selects n leads from the m leads through X, and the resistance values measured by the n leads are the measured value R of the conductive film; at the same time, an OTP chip is integrated in the RFID tag. When the packaging box leaves the factory, R and the product information number are stored in the OTP chip, and at the same time, when the liquor leaves the factory, this stored value is saved to the server through the RFID reader;

[0008] S30: The user wirelessly reads the data in the RFID tag or activates the RFID tag through the RFID reader device. After the user reads the data in the RFID tag, the RFID reader device stores the data read from the RFID tag in the RFID reader and uploads it to the server. Then, the data read from the RFID tag is compared with the data in the server to determine whether the liquor package is damaged. If it is damaged, it will cause a change in the measured resistance of the conductive film, and an alarm message will be sent to remind the user that there is a problem with the product. Finally, the information of the current user pre-stored in the RFID reader is uploaded to the server for storage.

[0009] The principle and effect of this solution are as follows:

[0010] (1) The method of randomly adding conductive materials used in this solution creates a non-uniform distribution of the resistance of the conductive film, making the conductive film of this solution unique and not easily imitated. On this basis, the leads on the conductive film are led out randomly in this solution, and the number of leads is not fixed, further enhancing the uniqueness of the conductive film. As a result, the resistance value R of the conductive film led out by the leads is more unique and not easily imitated or replicated. When the packaging box is damaged, the conductive film fixedly connected to the packaging box is damaged, causing a change in R. Moreover, the R in the server is encrypted data, and third parties or users cannot simulate a conductive film with the same resistance value without knowing the true value of R.

[0011] The conductive film used in this solution also has the function of enhancing the mechanical strength of the packaging. Since the materials of most conductive materials are relatively hard, the conductive film composed of various conductive materials mixed has the effect of increasing the thickness and mechanical strength of the liquor packaging box. After increasing the thickness, more creative designs to attract customers can be made on the appearance of the liquor packaging box. After increasing the mechanical strength, stronger protection can be provided for the liquor in the packaging box, such as reducing the squeezing force and collision force on the liquor. At the same time, due to the material characteristics, the conductive film also has the effects of moisture-proof and anti-oxidation. It can not only block the influence of external air and moisture on the quality of the liquor, slow down the contact between the liquor in the packaging and external oxygen, reduce the speed of the oxidation reaction, extend the shelf life of the liquor and maintain the stability of its flavor, but also effectively prevent moisture from seeping into the interior of the packaging and keep the liquor in a dry environment.

[0012] It can be seen that this solution solves the problem that anti-counterfeiting technologies are easily imitated and at the same time increases the protection of the liquor.

[0013] (2) The randomly added conductive materials used in this solution have a wide variety of choices and are inexpensive, making the production cost of the conductive film in this solution not high; moreover, the RFID tags used in this solution are inexpensive, making the production cost of the liquor packaging box with a conductive film and an RFID tag produced in this solution not high; the RFID reader required during the user authentication process is inexpensive, and the RFID reader can be used multiple times with a simple usage method, making the authentication cost of the anti-counterfeiting means that the user needs to pay low. It can be seen that this solution solves the problem of high authentication cost of anti-counterfeiting means.

[0014] (3) The relevant information such as the product information number, factory information, and user information of the liquor in this solution are stored in the server, and the relevant information can be queried by logging in to the server. It can be seen that this solution solves the problem of the imperfect information traceability system of the anti-counterfeiting system.

[0015] (4) The product information number of the liquor and the unique identification code X of the chip of the RFID tag are stored in the RFID tag in this solution. The product information of the liquor, X, and other detailed relevant information are stored in the server. During the user authentication process, the user uses X to obtain the detailed information of the liquor from the server through the user information. This method not only closely combines the online information and offline information of the liquor, but also closely combines the user information and X, solves the problem of insufficient tight combination of online and offline anti-counterfeiting, and also provides strong support for improving the information traceability system of the anti-counterfeiting system.

[0016] In summary, this solution solves the four problems of easy imitation of the anti-counterfeiting technology of the liquor packaging anti-counterfeiting method, high authentication cost of anti-counterfeiting means, imperfect information traceability system of the anti-counterfeiting system, and insufficient tight combination of online and offline anti-counterfeiting, thus solving problems such as limited anti-counterfeiting effect of the liquor packaging anti-counterfeiting method.

[0017] Further, in the S10 step, the types of conductive materials added to the conductive film include one or a mixture of multiple types. The distribution of the conductive materials in the conductive film is uneven. m is not less than 8, and n is 4.

[0018] The conductive material composed of one or a mixture of multiple types can increase the difference between the conductive films of different production batches, thereby increasing the uniqueness of the conductive film; at the same time, the uneven distribution of the conductive materials in the conductive film increases the difference between the conductive films of the same production batch, further increasing the uniqueness of the conductive film; moreover, the value of m (the number of leads) is not fixed and not less than 8, and n (the number of leads used for resistance measurement) is 4, making the R (the resistance of the conductive film) in one packaging box different and cannot be estimated, making R unique. This makes the anti-counterfeiting technology more difficult to imitate.

[0019] Further, in the S20 step, the four-probe method is used to measure R.

[0020] Due to random doping, the R of each measured conductive film is also random. Since the production volume of conductive films is large and the four-probe measurement method does not require calibration, using the four-probe measurement method to measure R can greatly save the quality inspection time of conductive films, thereby improving the production efficiency of conductive films.

[0021] Further, in the step S20, the structure of the RFID tag includes a FLASH storage module, an OTP storage module, a multi-lead four-probe thin film measurement circuit, an RFID antenna, an RFID chip, and a wireless power supply coil, where:

[0022] FLASH storage module: used to store communication data;

[0023] OTP storage module: a one-time programmable FLASH, that is, data can only be written once;

[0024] Multi-lead four-probe thin film measurement circuit: the multi-lead requires no less than 4 leads;

[0025] RFID antenna: used for communication with the RFID reader;

[0026] RFID chip: used to process communication with the RFID reader, circuit measurement, and logic processing.

[0027] Wireless power supply coil: uses the form of wireless power supply when the RFID reader works to provide electrical energy for the normal operation of the RFID tag chip.

[0028] The above OTP storage module can prevent the data of the RFID tag from being tampered with, ensuring the reliability of the data; the requirement that the multi-lead is no less than 4 leads can meet the minimum requirements of the four-probe thin film measurement circuit. In this way, the thickness of the RFID tag can be reduced as much as possible, the weight of the packaging box can be reduced, and at the same time, the waste of production cost can be avoided.

[0029] Further, in the step S30, the RFID reader device is also used to record the information of the current user in a coded form, including the merchant name, merchant address, and transaction date. The information of the current user is bound to the user information in the form of a number. The information of the current user needs to be logged in to the background service of the liquor manufacturer / agent for addition, deletion, query, and modification.

[0030] Recording the information of the current user in a coded form is more convenient for the RFID reader to transmit user information; the binding method can reduce the storage burden of the reader; using the login behavior to restrict the addition, deletion, query, and modification of user information can reduce the risk of user information being stolen and tampered with. While protecting the security of user information, it strengthens the information security guarantee of the information traceability system of the anti-counterfeiting system.

[0031] Further, when merchants receive and dispatch goods, they need to read the information of Baijiu products through an RFID card reader and upload the information of Baijiu products to the server.

[0032] This method further improves the information traceability system of the anti-counterfeiting system.

[0033] Further, the RFID card reader device consists of a communication module, a storage module, a touch display screen, a face recognition module, a fingerprint recognition module, and a global positioning module, where:

[0034] Fingerprint recognition / face recognition module: used for identity verification;

[0035] Touch display screen: used to display product information and select and set traceability information;

[0036] Storage module: saves identity verification personnel data and the traceability information database;

[0037] Communication module: used to maintain data communication with the server;

[0038] Global positioning system: obtains the geographical location and time when tracing the origin of the product;

[0039] RFID card reader module: used for data communication with RFID and powering the RFID tag.

[0040] The RFID card reader device provides multiple identity verification methods, giving users more usage options and enhancing the user experience. At the same time, it enables the card reader to be applicable to more users; the setting of the touch display screen is more convenient for users to read, making the identification operation simpler and further enhancing the user experience; the collaboration of the global positioning system and the communication module provides stronger technical support for the information traceability system of the anti-counterfeiting system and provides strong guarantee for the operation of the information traceability system of the anti-counterfeiting system.

[0041] Further, after using the RFID card reader device to complete the corresponding traceability information and identity verification information, the warehouse in / out and sales personnel only need to scan the code to automatically generate the unique identity information and tracking data of the product and send the generated data to the server.

[0042] Automatically generating the unique identity information and tracking data of the product can make the operations of the warehouse in / out and sales personnel simpler, reduce the workload of the warehouse out workers and sales personnel, and avoid information misreporting and omission caused by operational mistakes of the warehouse out workers and sales personnel.

[0043] Further, the server is used for user registration, storing Baijiu in / out data and management, viewing and analyzing product sales volume, and recording all Baijiu RFID data.

[0044] This way is more convenient for managing various data. When the amount of stored data is too large, it is more convenient for the server to expand the storage space. At the same time, separating the storage of various data from other functional modules is more conducive to data isolation and can better protect data security.

[0045] Furthermore, the conductive film is prevented from being fixedly adhered to the inside of the packaging box, and the RFID antenna is placed between the paper packaging and the conductive film.

[0046] This way can not only protect the RFID antenna and make it not easily damaged, but also take into account the beauty of the packaging box. It can also make the conductive film more easily affected by the packaging box and be damaged together with the packaging box when the packaging box is damaged, making the anti-counterfeiting technology not easily imitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Schematic diagram of measuring the resistance of the conductive film by the four-probe method in the embodiment of this solution.

[0048] Figure 2 Structural diagram of the RFID tag in the embodiment of this solution.

[0049] Figure 3 Flow chart of the RFID tag working in the embodiment of this solution.

[0050] Figure 4 Functional structure diagram of the RFID reader device in the embodiment of this solution.

[0051] Figure 5 Flow chart of the RFID reader device working in the embodiment of this solution.

[0052] Figure 6 Schematic diagram of the structure of the conductive film anti-counterfeiting material in the embodiment of this solution.

[0053] The following will be further described in detail through specific embodiments:

[0054] The reference numerals in the accompanying drawings of the specification include: 1, conductive fiber; 2, seal edge; 3, seal wire; 4, RFID tag; 5, lead wire; 7, resistance measurement circuit. SPECIFIC EMBODIMENTS

[0055] The following will clearly and completely describe the concept of the present invention and the technical effects generated in combination with the embodiments to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention:

[0056] The embodiment is basically as shown in the appendix Figure 1-6 as follows:

[0057] An anti-counterfeiting method for traceable liquor packaging based on the Internet of Things, comprising the following steps:

[0058] S10: Produce a conductive film by randomly adding a conductive material, and then randomly lead out m leads 5 from the conductive film. As shown in the appendix, connect these leads 5 to the RFID tag 4, and fixedly connect the RFID tag 4 and the conductive film inside the liquor packaging box. Figure 6 Among them, when processing and manufacturing the conductive film, it is necessary to randomly add a conductive material (i.e., conductive fiber 1) to the conductive film material. The conductive fiber 1 can be selected from very fine conductive glass fibers, copper wires or other conductive materials, etc. The purpose is to make the resistance distribution of the processed conductive film uneven.

[0059] When adding the conductive fiber 1, add more uneven conductive fibers 1 to the conductive film corresponding to the 12 edges of the liquor packaging box to provide stronger mechanical support for the liquor packaging box. For high-end liquor, precious conductive materials such as gold, silver, and copper or conductive materials with richer colors can also be selected as the conductive fiber 1 to endow the conductive film with unique visual effects for the outer packaging of the liquor, such as metallic luster, three-dimensional sense, etc., making the packaging more eye-catching in appearance and enhancing the attractiveness and recognition of the product. The pattern, color, and shape of the conductive film can be changed by adding conductive fibers 1 of different colors to achieve customized packaging and meet the needs and preferences of different consumers.

[0060] Then, randomly lead out no less than 8 leads 5 from the processed conductive film for measuring the resistance of the conductive film using the four-probe method (the measurement method can refer to the master's thesis "Research on the Four-Probe Thin Film Resistance Test System Based on LabVIEW - Zhang Ruqing"). Due to random doping, the resistance of each measured conductive film is also random.

[0061] Among them, the RFID tag 4 also records the resistance ratio measured between the 4 resistance measurement leads 5 before the liquor leaves the factory. After leaving the factory, when the R0 (the resistance value of the conductive film measured after leaving the factory) measured by the RFID tag 4 is inconsistent with the R recorded before leaving the factory, the RFID tag reads the resistance values measured by the 4 leads 5 respectively, and obtains the resistance ratio between the 4 leads 5 based on the measured resistance values. Compare the resistance ratio measured this time with the resistance ratio recorded before leaving the factory. If: the ratios are different, it is determined that the liquor is counterfeit; if the ratios are the same, calculate the difference between R0 and R, and infer the degree of moisture absorption or oxidation of the liquor based on the difference, and then infer the degree of change in the quality of the liquor, and finally prompt the user about the inferred change in the quality of the liquor.

[0062]

[0063] ​S20: Denote the unique identification code of the chip of the RFID tag 4 as X. The RFID tag 4 randomly selects n leads 5 from m leads 5 (the lead 5 is the resistance measurement circuit 7 of the RFID tag for measuring the resistance of the conductive fiber 1, that is, the resistance measurement circuit for measuring the resistance value of the conductive thin film). The resistance values measured by the n leads 5 are the measured values R of the conductive thin film. At the same time, an OTP chip is integrated in the RFID tag 4. When the packaging box is produced, R and the product information number are stored in the OTP chip. At the same time, when the liquor leaves the factory, this stored value is saved to the server through the RFID reader.

[0064] Among them, the server is used for user registration, storing liquor incoming and outgoing data for management, viewing and analyzing product sales volume, and recording the RFID data of all liquors. Through the functions provided by the server, product traceability and product benefit analysis can be carried out, providing favorable data support for the production and sales of the manufacturer's liquor. This part is a general method and will not be elaborated here.

[0065] Among them, the RFID tag 4 has the function of identifying an ordinary RFID tag 4 and also has the function of measuring the resistance of the conductive thin film, which is used to measure the resistance by randomly leading out no less than 8 leads 5 from the conductive thin film. Since only 4 leads 5 are required to measure the resistance, 4 of them need to be randomly selected to generate a random resistance (the 4 leads 5 form the resistance measurement circuit 7). The random method is through the unique identification code of the RFID chip. An OTP (one-time programmable FLASH) chip also needs to be integrated in the RFID for storing the measured value of the conductive thin film and the product information number in the OTP chip when the packaging box is produced, and at the same time saving this stored value to the server through the RFID reader when leaving the factory.

[0066] Among them, the packaging box consists of 2 parts. First, the outermost is an ordinary paper packaging, and then the conductive thin film anti-counterfeiting material is bonded to the paper packaging on the inner side of the paper packaging.

[0067] Before bonding, the liquor needs to be placed inside the conductive thin film, and then the conductive thin film is sealed by ultrasonic welding or heat melting welding. Then the RFID antenna is placed between the paper packaging and the conductive thin film to facilitate reading data through the RFID reader, and finally bonded to the paper packaging.

[0068] Adopting this packaging form, since the paper packaging is combined with the conductive thin film, as long as the packaging box is damaged, the conductive thin film will be damaged, ultimately resulting in a change in the resistance of the conductive thin film, and then it can be judged that the product has been damaged artificially, realizing the anti-counterfeiting function.

[0069] Among them, the seal pull wire 3 will be connected to the paper packaging. When the paper packaging box is opened, it will drive the seal pull wire 3 to be pulled along the seal edge 2 to facilitate the user to open the box.

[0070] The structure of the RFID tag 4 includes a FLASH storage module, an OTP storage module, a multi-lead four-probe thin film measurement circuit, an RFID antenna, an RFID chip, and a wireless power supply coil, as Figure 2 shown. Among them,

[0071] FLASH storage module: used to store communication data;

[0072] OTP storage module: a one-time programmable FLASH, that is, data can only be written once to ensure data reliability;

[0073] Multi-lead four-probe thin film measurement circuit: The multi-lead requires no less than 4 leads 5, that is, meeting the minimum requirements of the four-probe thin film measurement circuit is sufficient. Here, 8 leads 5 are mainly used as an example for illustration;

[0074] RFID antenna: used for communication with the RFID reader;

[0075] RFID chip: used to process communication, circuit measurement, and logic processing with the RFID reader.

[0076] Wireless power supply coil: Utilize the form of wireless power supply when the RFID reader works to provide electrical energy for the normal operation of the RFID tag 4 chip.

[0077] The working process of the RFID tag 4 is as follows:

[0078] When the RFID reader needs to read data from the RFID tag 4, it will activate the RFID tag 4 to work, provide power by the RFID reader, and read data from the RFID tag 4 chip. The implementation process is as Figure 3 shown.

[0079] S21: Determine whether data is received. If data is received, go to S22; otherwise, go to S29;

[0080] S22: Analyze the received data (including device number, time, communication encryption key, where the communication encryption key is randomly generated by the scanning device to ensure that even if the same data is transmitted, different data will be formed after encryption, avoiding brute-force cracking of communication content through unauthorized devices), and determine whether the data is valid. If the data is valid, go to S23; otherwise, go to S29;

[0081] S23: Read the circuit resistance value and the unique identity code of the RFID tag 4, and determine whether the RFID tag 4 has been used, that is, by judging whether data has been written to the OTP storage module. If the RFID tag 4 has not been used, go to S24; otherwise, go to S26;

[0082] S24: Read the circuit resistance value, write the scanning device number, time, and resistance value into the OTP storage module, and at the same time write the first scanning device number, time, and resistance value into the FLASH module, then go to S25;

[0083] S25: Encrypt the communication encryption key pair obtained by parsing in S22 for the success result (including success flag bit, written resistance value, written time, RFID unique identity code), then go to S28;

[0084] S26: Read the first scanning device number, time, and resistance value from the OTP storage module, and read the last 5 scanning device numbers, time, and measured resistance values from the FLASH. If there are less than 5 times, read as many times as there are, then go to S27;

[0085] S27: Encrypt all the data obtained in S26 with the communication encryption key pair obtained by parsing in S22, then go to S28;

[0086] S28: Send the encrypted data to the scanning device through the RFID antenna, and at the same time write the current scanning device number, time, and measured resistance into the FLASH, then go to S29;

[0087] S29: End the RFID tag 4 reading process.

[0088] S30: The user wirelessly reads the data in the RFID tag 4 or activates the RFID tag 4 through the RFID reader device. After the user reads the data in the RFID tag 4, the RFID reader device stores the data read from the RFID tag 4 into the RFID reader and uploads it to the server. Then compare the data read from the RFID tag 4 with the data in the server to determine whether the liquor packaging is damaged. If it is damaged, it will cause a change in the measured conductive film resistance, and at the same time send an alarm message to remind the user that there is a problem with the product; finally, upload the information of the current user pre-stored in the RFID reader to the server for storage.

[0089] Among them, the RFID reader device has the functions of wirelessly reading the data in the RFID tag 4 and activating the RFID tag 4, stores the read data into the RFID reader, uploads it to the server, and at the same time discriminates with the data in the server to determine whether the liquor packaging is damaged. If it is damaged, it will cause a change in the measured conductive film resistance, and at the same time send an alarm message to remind the user that there is a problem with the product.

[0090] The RFID card reader device records the information of the current user in a coded form, including information such as the manufacturer, first-level agent, second-level agent, …, first-level retailer, second-level retailer, etc. This information includes the merchant name, merchant address, and transaction date. This information is bound to the user information in the form of a number. If the information needs to be added, deleted, queried, or modified, it can be modified by logging in to the background service of the liquor manufacturer / agent on the computer. When the merchant takes in and ships goods, it is necessary to read the liquor product information through the RFID card reader and upload the information to the server.

[0091] As shown in the Figure 4 appendix, the RFID card reader device consists of a communication module, a storage module, a touch display screen, a face recognition module, a fingerprint recognition module, and a global positioning module. Among them:

[0092] Fingerprint recognition / face recognition module: used for identity verification;

[0093] Touch display screen: used to display product information and select and set traceability information.

[0094] Storage module: saves the identity verification personnel data and the traceability information database.

[0095] Communication module: used to maintain data communication with the server;

[0096] Global positioning system: obtains the geographical location and time during product traceability;

[0097] RFID card reader module: used for data communication with the RFID and powers the RFID tag 4.

[0098] After using this device to complete the corresponding traceability information and identity verification information, the inbound and outbound and sales personnel only need to scan the code to automatically generate the unique identity information and tracking data of the product and send the data to the server, which can significantly improve work efficiency.

[0099] As shown in the Figure 5 appendix, the working process of the RFID card reader device is as follows:

[0100] S31: System initialization;

[0101] S32: Determine whether a new user is added. If a new user needs to be added, complete the entry of face and fingerprint data according to the user's selection;

[0102] S33: After completing the identity entry, enter the identity verification process. First, determine whether a fingerprint is pressed. If a fingerprint is pressed, read and match the fingerprint data. If the match is successful, log in to the system. Otherwise, determine whether a face exists. If the face match is successful, log in to the system. Otherwise, return to S32;

[0103] S34: The RFID reader device will connect to the specified server according to the pre-configured server parameters, and then determine whether to trigger the RFID reading function. If triggered, it will go to S35; otherwise, it will return to S32.

[0104] S35: Randomly generate a communication encryption key, obtain the system time and device ID, encrypt the system time and device ID with the generated communication encryption key, and then send the encrypted data and the communication encryption key to the RFID tag 4 (the sent encrypted data and communication encryption key will be encrypted again by the device's fixed encryption key, including the encryption and decryption processes of the RFID tag 4 and the RFID reader device), and wait for the RFID to return the reading result, and then go to S36.

[0105] S36: Decrypt the returned data with the communication encryption key, parse the decrypted data, determine the type of the data. If the data activates the device data, construct the RFID activation status data (the data encrypted by using an encryption algorithm for the write resistance value, write time, and RFID unique identity code of the OTP storage module), and then go to S38; otherwise, go to S37.

[0106] S37: Obtain the resistance value in the OTP storage module and the resistance value read from the circuit, and determine whether the two resistance values are the same. If they are not the same, trigger an alarm and go to S38; otherwise, directly go to S38.

[0107] S38: Display the parsed data and results on the display screen, that is, display whether the resistance values are the same or whether the RFID tag 4 is activated, and then go to S39.

[0108] S39: Send the decrypted data, device number, and user information to the server (this process also requires encryption).

[0109] During specific use:

[0110] The manufacturer randomly adds conductive materials such as very thin conductive glass fibers, copper wires, or other conductive materials to the conductive film material to make a conductive film, and then randomly leads out 8 leads 5 from the processed conductive film, and then through the RFID chip unique identity code. The manufacturer first places the white liquor in the conductive film, and then seals the conductive film by ultrasonic welding or heat-melting welding, and then places the RFID antenna between the paper packaging and the conductive film, and finally bonds it to the paper packaging.

[0111] The manufacturer also integrates an OTP (one-time programmable FLASH) chip into the RFID tag 4, stores the measured value of the conductive film and the product information number in the OTP chip, and saves the stored value to the server through the RFID reader at the time of factory shipment.

[0112] After the liquor leaves the factory, before the user authenticates the liquor, the user turns on the RFID reader device. After the RFID reader device is turned on, the RFID reader completes the system initialization and displays login and registration prompts. When the user selects the login option, the RFID reader displays the login interface. The user enters the account information on the login interface. After the RFID reader obtains the account information, it prompts the user to enter verification information. The user then enters the fingerprint information. The reader obtains the fingerprint information entered by the user. The reader determines that the account information entered by the user matches the fingerprint information and displays the system after successful login.

[0113] After the user logs in successfully, the user brings the RFID reader close to the RFID tag 4. The RFID reader provides power to the RFID tag 4. The RFID tag 4 is activated. The RFID reader reads the data from the RFID tag 4 chip, randomly generates a communication encryption key, obtains the system time and the device ID, encrypts the system time and the device ID with the generated communication encryption key, and then sends the encrypted data and the communication encryption key to the RFID tag 4 (the sent encrypted data and the communication encryption key will be encrypted again by the fixed encryption key of the device, including the encryption and decryption processes of the RFID tag 4 and the RFID reader device), and waits for the RFID to return the read result.

[0114] After the RFID tag 4 receives the encrypted data and the communication encryption key, it parses and determines whether the received encrypted data and the communication encryption key are valid. The RFID tag 4 determines that the encrypted data and the communication encryption key are valid, then reads the circuit resistance value and the unique identity code of the RFID tag 4, determines that the RFID tag 4 has not been used, reads the circuit resistance value, and writes the scanning device number, time, and resistance value into the OTP storage module. At the same time, it writes the first scanning device number, time, and resistance value into the FLASH module; then encrypts the communication encryption key pair obtained by parsing for the write success result (including the success flag bit, the written resistance value, the written time, and the RFID unique identity code), sends the encrypted data to the RFID reader through the RFID antenna, and writes the current scanning device number, time, and measured resistance into the FLASH. Finally, it ends the RFID tag 4 reading process.

[0115] The RFID reader decrypts the returned data using the communication encryption key, parses the decrypted data, determines that the data type is activation device data, constructs RFID activation status data, then displays the parsed data and results on the display screen, and finally sends the decrypted data, device number, and user information to the server (this process also requires encryption).

[0116] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A traceable liquor packaging anti-counterfeiting method based on the Internet of Things, characterized in that: The following steps are involved: S10: a conductive film is prepared by randomly adding conductive materials, and then m leads are randomly drawn out of the conductive film, and the leads are connected to the RFID tag, and the RFID tag and the conductive film are fixedly connected inside the packaging box of the liquor; the conductive material added to the conductive film includes one or more mixed types, and the conductive material of the conductive film is unevenly distributed; S20: The unique identification code of the RFID tag chip is recorded as X, and the RFID tag randomly selects n leads from m leads through X, where m is not less than 8, n is 4, and the resistance value measured by the n leads is the measurement value R of the conductive film; at the same time, an OTP chip is integrated in the RFID tag, and R and the product information number are stored in the OTP chip when the packaging box is produced, and the stored value is saved to the server through the RFID card reader when the liquor leaves the factory; S30: The user wirelessly reads the data in the RFID tag or activates the RFID tag through the RFID reader device. After the user reads the data in the RFID tag, the RFID reader device stores the data read from the RFID tag in the RFID reader and uploads it to the server. The data in the read RFID tag is then compared with the data in the server to determine whether the liquor packaging is damaged. If damaged, the measured conductive film resistance will change, and an alarm message will be issued to remind the user that there is a problem with the product. Finally, the current user information pre-stored in the RFID reader is uploaded to the server for storage.

2. According to the Internet of Things-based traceable liquor packaging anti-counterfeiting method of claim 1, it is characterized by: In the step S20, the four-needle detection method is used to measure R.

3. According to the Internet of Things-based traceable liquor packaging anti-counterfeiting method of claim 2, it is characterized by: In the step S20, the structure of the RFID tag includes a FLASH storage module, an OTP storage module, a multi-lead four-probe thin film measurement circuit, an RFID antenna, an RFID chip and a wireless power supply coil, wherein: FLASH storage module: used to store communication data; OTP storage module: One-time programmable FLASH, that is, data can only be written once; Multi-lead four-probe thin film measurement circuit: Multi-lead requires no less than 4 leads; RFID antenna: used for communication with RFID reader; RFID chip: used to handle communication with the RFID reader, circuit measurement and logic processing; Wireless power supply coil: When the RFID card reader is working, it provides power for the RFID tag chip to work normally through wireless power supply.

4. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 3 is characterized in that: In the step S30, the RFID reader device is also used to record the current user's information in a coded form, including the merchant name, merchant address, and transaction date. The current user's information is bound to the user information in the form of a number. The current user's information needs to be added, deleted, checked, and modified after logging into the backend service of the liquor manufacturer / agent.

5. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 4 is characterized in that: When merchants are shipping goods, they need to use RFID card readers to read the liquor product information and upload the liquor product information to the server.

6. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 5 is characterized in that: The RFID card reader device is composed of a communication module, a storage module, a touch display screen, a face recognition module, a fingerprint recognition module and a global positioning module, wherein: Fingerprint recognition / face recognition module: used for identity authentication; Touch screen: used to display product information and select and set traceability information; Storage module: saves identity verification personnel data and traceability information database; Communication module: used to maintain data communication with the server; Global Positioning System: Obtain the geographic location and time when tracing the product; RFID reader module: used for data communication with RFID and power supply for RFID tags.

7. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 6 is characterized in that: After completing the corresponding traceability information and identity authentication information using the RFID card reader device, warehouse and sales personnel only need to scan the code to automatically generate the unique identity information and tracking data of the product, and send the generated data to the server.

8. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 7 is characterized in that: The server is used for user registration, storage of liquor import and export data, and management, viewing, and analysis of commodity sales and recording of RFID data of all liquors.

9. The method for anti-counterfeiting of liquor packaging based on the Internet of Things according to claim 8 is characterized in that: The conductive film is prevented from being fixedly adhered to the inside of the packaging box, and the RFID antenna is placed between the paper packaging and the conductive film.

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