NFC personalized display method and terminal for large screen

Abstract

The present invention provides an NFC personalized display method and terminal for a large screen. The NFC personalized display method for a large screen comprises: when an exhibition worker places an NFC card on an NFC card reader corresponding to an exhibition display device, receiving card information obtained by the NFC card reader reading the NFC card, querying a card reading record and an exhibition theme package database corresponding to the NFC card according to a card identifier, querying a first exhibition theme package number corresponding to a card reading number when the NFC card was read last time according to the card reading record, querying a next exhibition theme package number of the first exhibition theme package number, and obtaining a second exhibition theme package number; obtaining a target exhibition theme package corresponding to the second exhibition theme package number from the exhibition theme package database, and using the target exhibition theme package to switch display content of the exhibition display device, thereby completing a quick switch of the corresponding display content through the NFC card, and convenient operation.

Description

Technical Field

[0001] The present invention relates to the field of smart exhibition technology, and in particular to an NFC personalized display method and terminal for a large screen. Background Art

[0002] An exhibition hall is a place used to display a specific theme or a series of related themes. The place can be an art gallery, exhibition venue, cultural center, etc. The exhibition hall contains one or more exhibition halls, which are the spaces inside the exhibition hall for display.

[0003] Traditionally, exhibition content is displayed by sending the completed exhibition theme package to the exhibition screen through the server, or copying the completed exhibition theme package to the exhibition screen through a mobile hard disk. Therefore, when the exhibition content of the exhibition screen needs to be replaced, the server needs to re-send or the exhibition worker needs to re-copy the exhibition theme package to be replaced, which has low operation efficiency and is not conducive to the rapid iteration of exhibition content.

[0004] In the technical solution with application number CN202310136215.5, a content output system is used to control the playback of exhibition content in multiple exhibition areas. The control device captures the target image of the target user through the image acquisition device in the target exhibition area, performs face recognition on the target image, determines the user information of the target user, and determines the content to be played based on the user information. The control device controls the audio and video playback device in the target exhibition area to play the content to be played. The technical solution is cumbersome to operate and cannot complete the rapid iteration of the exhibition content.

[0005] In the technical solution with application number CN202211039071.3, although it obtains the exhibition data of the exhibition content, combs the exhibition data according to the preset playback order and the type of the exhibition data, obtains the combing result, and outputs the combing result to the first display unit, so that relevant personnel can monitor and manage the exhibition content through the first display unit, thereby improving the organization and accuracy of managing the exhibition content; but when the exhibition content of the exhibition screen needs to be replaced, the exhibition data needs to be re-combined, and the operation efficiency is low. Summary of the invention

[0006] The present invention provides an NFC personalized display method and terminal for a large screen, so as to realize the rapid replacement of the exhibition content of the large exhibition screen and improve the switching efficiency.

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] The present invention provides an NFC personalized display method for a large screen, comprising:

[0009] When an exhibition worker places an NFC card on an NFC card reader corresponding to an exhibition display device, the exhibition worker receives card information obtained by the NFC card reader reading the NFC card, wherein the card information includes a card identifier;

[0010] According to the card identifier, query the card reading record and exhibition theme package database corresponding to the NFC card, wherein the card reading record includes a card reading number and an exhibition theme package number corresponding to each card reading number, and the exhibition theme package database includes multiple exhibition theme packages;

[0011] According to the card reading record, query the first exhibition theme package number corresponding to the card reading number when the NFC card was read last time, query the next exhibition theme package number of the first exhibition theme package number, and obtain the second exhibition theme package number;

[0012] A target exhibition theme package corresponding to the second exhibition theme package number is obtained from the exhibition theme package database, and the display content of the exhibition display device is switched using the target exhibition theme package.

[0013] Furthermore, before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes:

[0014] Building a corresponding exhibition theme package database according to the card identifier of the NFC card;

[0015] Selecting a plurality of exhibition theme packages of different theme types for the NFC card;

[0016] Sorting the multiple exhibition theme packages to obtain a sorting result;

[0017] An exhibition theme package number is sequentially assigned to each of the exhibition theme packages according to the sorting result, and the multiple exhibition theme packages and the corresponding exhibition theme package numbers are stored in the exhibition theme package database.

[0018] Preferably, using the target exhibition theme package to switch the display content of the exhibition display device includes:

[0019] Parsing the target exhibition theme package to obtain multiple target exhibition contents;

[0020] Obtaining parameter information of each display screen in the exhibition display device;

[0021] According to the parameter information of each display screen, the target display content is allocated to each display screen, and the multiple target display contents are distributed to the corresponding display screens for display.

[0022] Preferably, using the target exhibition theme package to switch the display content of the exhibition display device includes:

[0023] Querying the device address of the exhibition display device;

[0024] The target exhibition theme package is sent to the exhibition display device according to the device address, so that the exhibition display device switches the display content to the target exhibition content of the target exhibition theme package.

[0025] Furthermore, after switching the display content of the exhibition display device using the target exhibition theme package, the method further includes:

[0026] According to the card reading number of the NFC card when it was read last time, a card reading number is set for the current card reading event of the NFC card to obtain the latest card reading number;

[0027] The latest card reading number and the corresponding second exhibition theme package number are written into the card reading record.

[0028] Furthermore, before the exhibition worker places the NFC card on the NFC card reader corresponding to the exhibition display device, the following steps are also included:

[0029] Obtaining identity information of exhibition workers, and encrypting the identity information according to a symmetric encryption algorithm to obtain a key;

[0030] Creating an anti-counterfeiting identification code, and encrypting the anti-counterfeiting identification code to obtain anti-counterfeiting information;

[0031] A unique card identifier of the NFC card is set, the card identifier is recorded in the NFC card, and the key and the anti-counterfeiting information are written into the NFC card into which the card identifier has been recorded.

[0032] Furthermore, before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes:

[0033] Decrypting the anti-counterfeiting information, extracting the anti-counterfeiting identification code, and comparing the anti-counterfeiting identification code with a standard anti-counterfeiting identification code;

[0034] After the comparison is passed, a verification instruction is sent to the NFC card;

[0035] Obtaining an initial verification code sent by the NFC card based on the verification instruction;

[0036] Acquire a key corresponding to the NFC card according to the card identifier, and use the key to encrypt the initial verification code to obtain an initial encrypted verification code;

[0037] Randomly generate an intermediate check code;

[0038] Performing an XOR operation on the initial encryption verification code and the intermediate verification code, and encrypting them with the key to obtain the information to be verified;

[0039] Sending the information to be verified to the NFC card;

[0040] When the data obtained by encrypting the initial verification code by the NFC card reader using the key is consistent with the data obtained by decrypting the information to be verified after comparison, a message that the NFC card reader has passed the verification of the NFC card is received, and the step of querying the card reading record and the exhibition theme package database corresponding to the NFC card according to the card identifier is performed.

[0041] Furthermore, after switching the display content of the exhibition display device using the target exhibition theme package, the method further includes:

[0042] When a visitor is detected to enter the exhibition hall, multiple historical exhibition visit data of the visitor are obtained;

[0043] Randomly select any two pieces of historical exhibition visit data from the plurality of historical exhibition visit data in chronological order, concatenate them, and convert them into binary data respectively, to obtain a plurality of visit character strings;

[0044] Obtain the types, locations and traffic of all historical exhibition halls to obtain exhibition hall data;

[0045] After converting the exhibition hall data into binary data, a plurality of exhibition hall character strings are obtained;

[0046] Calculating the visitor's interest in each historical exhibition hall according to the plurality of visit character strings and the plurality of exhibition hall character strings, and generating a visitor interest vector;

[0047] Obtain the types, locations and traffic of all target exhibition halls, and obtain the target exhibition hall data;

[0048] Performing vector processing on the target exhibition hall data to obtain a target exhibition hall vector;

[0049] The similarity between the visitor's interest vector and the target exhibition hall vector is calculated, and the target exhibition hall with a similarity greater than a preset threshold is screened out and recommended to the visitor.

[0050] Preferably, the visitor's interest in each historical exhibition hall is calculated according to the plurality of visit character strings and the plurality of exhibition hall character strings, and a visitor interest vector is generated, including:

[0051] Set minimum support and minimum confidence;

[0052] Based on the minimum support and the minimum confidence, all possible frequent item sets of multiple visit character strings and multiple exhibition hall character strings are generated according to the Apriori algorithm, and the frequent item sets are used to characterize the association between the visit character string and the corresponding exhibition hall character string;

[0053] After weighted summing up the correlation between all visit character strings and the corresponding exhibition hall character strings in the frequent item set, the visitor's interest in each historical exhibition hall is obtained, and multiple visit character strings, multiple exhibition hall character strings and the corresponding interest degrees are respectively mapped to a unique position in the high-dimensional space, each position corresponds to a dimension, and the visitor interest vector is obtained.

[0054] The present invention provides a terminal, comprising a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the NFC personalized display method for a large screen as described in any one of the above items.

[0055] Compared with the prior art, the technical solution of the present invention has at least the following advantages:

[0056] The NFC personalized display method and terminal for large screens provided by the present invention can quickly switch the corresponding display content through the NFC card, and the operation is convenient; a corresponding exhibition theme package database is constructed according to the NFC card identifier, and each exhibition theme package database contains multiple exhibition theme packages, so as to perform personalized display according to different exhibition needs and meet the needs of different users; in addition, each exhibition theme package can be automatically recorded according to the card reading record of the NFC card, so as to ensure the accurate switching of the exhibition content. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a flowchart of an embodiment of the NFC personalized display method for a large screen of the present invention;

[0058] Figure 2 This is a module block diagram of an embodiment of an NFC personalized display device for a large screen of the present invention;

[0059] Figure 3 FIG. 4 is a block diagram of the internal structure of a terminal in one embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0061] In some of the processes described in the specification and claims of the present invention and the above-mentioned figures, multiple operations that appear in a specific order are included, but it should be clearly understood that the operations may not be executed in the order in which they appear in this article or in parallel. The sequence numbers of the operations, such as S11, S12, etc., are only used to distinguish between different operations, and the sequence numbers themselves do not represent any execution order. In addition, the process may include more or fewer operations, and the operations may be executed in sequence or in parallel. It should be noted that the descriptions of "first", "second", etc. in this article are used to distinguish different messages, devices, modules, etc., do not represent the order of precedence, and do not limit the "first" and "second" to be different types.

[0062] It will be understood by those of ordinary skill in the art that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0063] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as herein.

[0064] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0065] See also Figure 1 The present invention provides an NFC personalized display method for a large screen, comprising:

[0066] S11, when an exhibition worker places an NFC card on an NFC card reader corresponding to an exhibition display device, receiving card information obtained by the NFC card reader reading the NFC card, the card information including a card identifier;

[0067] S12, querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, wherein the card reading record includes a card reading number and an exhibition theme package number corresponding to each card reading number, and the exhibition theme package database includes multiple exhibition theme packages;

[0068] S13, querying the first exhibition theme package number corresponding to the card reading number when the NFC card was read last time according to the card reading record, querying the next exhibition theme package number of the first exhibition theme package number, and obtaining the second exhibition theme package number;

[0069] S14: Acquire a target exhibition theme package corresponding to the second exhibition theme package number from the exhibition theme package database, and use the target exhibition theme package to switch display content of the exhibition display device.

[0070] As described in step S11 above, when the exhibition worker places the NFC card on the NFC card reader, the NFC card reader reads the information on the card and obtains the card information. The card information includes a unique card identifier (ID) that can be used to query the card reading record corresponding to the NFC card and the specified exhibition theme package database.

[0071] As described in step S12 above, the system uses the card identifier to query the card reading record associated with the NFC card. The card reading record can be a database or a list, which records the card reading number of each card reading event and the exhibition theme package number associated with each card reading number. The exhibition theme package database contains multiple exhibition theme packages, each theme package has a unique number, and the exhibition theme package will obtain one or more multimedia files after parsing.

[0072] As described in step S13 above, the system will search for the card reading number when the NFC card was last read, and the corresponding exhibition theme package number (the first exhibition theme package number). Then, the system will query the next exhibition theme package number of the first exhibition theme package number to obtain the second exhibition theme package number.

[0073] As described in step S14 above, the system uses the second exhibition theme package number to retrieve the corresponding target exhibition theme package from the exhibition theme package database. The target exhibition theme package contains specific exhibition content, such as multimedia files such as pictures, text, and videos. The system uses the target exhibition theme package to update the content on the exhibition display device, thereby realizing automatic switching of the exhibition content.

[0074] It should be noted that the present invention can realize automatic switching of different display contents in the same exhibition hall, and can also realize automatic switching of different display contents in different exhibition halls.

[0075] For example, when it is necessary to automatically switch between different exhibition contents in different exhibition halls, suppose an art gallery is holding an exhibition, which is divided into several exhibition areas, and each exhibition area can control the exhibition content through the same NFC card. When a visitor enters the "Impressionism" exhibition area, the exhibition worker uses the NFC card associated with the exhibition area to swipe the card on the NFC reader. After the NFC reader reads the card information, the system queries the card reading record corresponding to the NFC card and determines that the first theme package of the "Impressionism" exhibition area should be displayed.

[0076] When the visitor moves to the next exhibition area, the exhibition worker swipes the NFC card on the NFC reader again, and the system automatically switches to the next theme package, such as "Post-Impressionism", based on the card reading record and the exhibition theme package database. The exhibition display device (such as a screen or projector) will display content related to the "Post-Impressionism" theme package, such as the introduction of artists of that period and representative works.

[0077] Through the above method, the exhibition content can be automatically switched according to the reading order of NFC cards, which can provide visitors with a smooth and coherent exhibition experience. At the same time, it is convenient for exhibition workers to quickly switch the display content.

[0078] The NFC personalized display method for a large screen provided by the present invention can quickly switch the corresponding display content through the NFC card, and the operation is convenient; a corresponding exhibition theme package database is constructed according to the NFC card identifier, and each exhibition theme package database contains multiple exhibition theme packages, so as to perform personalized display according to different exhibition needs and meet the needs of different users; in addition, each exhibition theme package can be automatically recorded according to the card reading record of the NFC card, so as to ensure the accurate switching of the exhibition content.

[0079] In one embodiment, before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes:

[0080] Building a corresponding exhibition theme package database according to the card identifier of the NFC card;

[0081] Selecting a plurality of exhibition theme packages of different theme types for the NFC card;

[0082] Sorting the multiple exhibition theme packages to obtain a sorting result;

[0083] An exhibition theme package number is sequentially assigned to each of the exhibition theme packages according to the sorting result, and the multiple exhibition theme packages and the corresponding exhibition theme package numbers are stored in the exhibition theme package database.

[0084] First, it is necessary to build an exhibition theme package database for each NFC card to store the exhibition theme packages associated with the NFC card. The exhibition theme package database can establish an association relationship through the card identifier for easy query.

[0085] According to the content of the exhibition and the target visitors, the system will select multiple exhibition theme packages of different themes for each NFC card. For example, if it is an art exhibition, there may be different theme packages such as "classical art", "modern art", "street art", etc.

[0086] In order to optimize the visitor's visiting experience, it is necessary to sort the selected exhibition theme packages and obtain the arrangement order of multiple exhibition theme packages. The sorting can be based on various factors, such as the logical flow of the exhibition, the visitor's visiting habits, the educational purpose of the exhibition, etc.

[0087] According to the sorting results, a unique exhibition theme package number is assigned to each exhibition theme package. The exhibition theme package number is used to quickly identify and retrieve a specific exhibition theme package in the system and can be in digital or alphabetic form.

[0088] Finally, each exhibition theme package and its corresponding number are stored in the corresponding, constructed exhibition theme package database, so that after the system receives the card information obtained by reading the NFC card by the NFC reader, it can quickly retrieve the corresponding exhibition theme package according to the card identification.

[0089] For example, if there is an exhibit about "Natural History", the system might create the following exhibit theme package:

[0090] Exhibition theme package A: Dinosaur era;

[0091] Exhibition theme package B: Prehistoric marine life;

[0092] Exhibition theme package C: Mammals of the Ice Age;

[0093] Exhibition theme package D: Modern biodiversity.

[0094] The system may sort all exhibition theme packages according to the narrative flow of the exhibition, for example, starting from the earliest geological period and ending with modern biodiversity. The sorting result may be A→B→C→D. Then, based on the sorting result, each exhibition theme package is assigned a number, such as A-01, B-02, C-03, D-04, and the information is stored in the exhibition theme package database.

[0095] When visitors use their NFC cards to visit the exhibition or exhibition workers use their NFC cards to arrange and switch the exhibition content, they can swipe their cards on the NFC reader, and the system will retrieve the corresponding exhibition theme package (such as A-01) from the database based on the card ID and display information about the dinosaur era. As visitors or exhibition workers move around the exhibition and read NFC cards from different reading record periods in turn, the exhibition content will automatically update according to their location and interaction with the NFC card, providing a smooth and personalized visiting experience.

[0096] In one embodiment, using the target exhibition theme package to switch the display content of the exhibition display device includes:

[0097] Parsing the target exhibition theme package to obtain multiple target exhibition contents;

[0098] Obtaining parameter information of each display screen in the exhibition display device;

[0099] According to the parameter information of each display screen, the target display content is allocated to each display screen, and the multiple target display contents are distributed to the corresponding display screens for display.

[0100] In this embodiment, the system will parse the target exhibition theme package to parse out one or more target display contents. The target display contents may include text, pictures, videos or other multimedia contents, which are set for specific exhibitions or display purposes.

[0101] At the same time, the system collects parameter information of each display, including resolution, screen size, color profile, position and orientation, etc. This parameter information helps ensure that the display content can be presented on each display in the best way.

[0102] Based on the parameter information of each display, the system determines which display content is suitable for display on which display. For example, high-resolution pictures may be assigned to higher-resolution displays, while video content may be assigned to larger screens. The allocation process can also combine the narrative flow of the exhibition and the visitor's viewing experience to ensure the logic and coherence of the content.

[0103] Once the display content is assigned, the system will send each target display content to the corresponding display screen for display, and render and optimize the target display content in real time to adapt to different display devices.

[0104] For example, let's say a museum is holding an exhibition about ancient civilizations. After the system extracts the target exhibition theme package, it will parse out the content related to the Ancient Egypt exhibition area, such as a video of the construction process of the pyramids, an introduction to the pharaoh, and pictures of ancient Egyptian artworks. The system will allocate the exhibition content based on the parameter information of each display (for example, one display is suitable for displaying videos, while another is suitable for displaying high-resolution artwork pictures). Finally, the video about the construction of the pyramids is played on a large screen, the introduction of the pharaoh is displayed on a touch screen, and the high-definition pictures of the artworks are displayed on a display on a nearby wall.

[0105] Through the above method, the exhibition content can be optimized and dynamically adjusted according to the parameter information of the display screen, thereby improving the display effect of the exhibition content. At the same time, it can also provide flexibility and convenience for exhibition workers, making it convenient for exhibition workers to update and maintain the exhibition content as needed.

[0106] In one embodiment, using the target exhibition theme package to switch the display content of the exhibition display device includes:

[0107] Querying the device address of the exhibition display device;

[0108] The target exhibition theme package is sent to the exhibition display device according to the device address, so that the exhibition display device switches the display content to the target exhibition content of the target exhibition theme package.

[0109] Each exhibition display device in this embodiment is assigned a unique device address, which can be a network address used to uniquely identify the exhibition display device in a local area network or the Internet. The device address is used to determine the target of data transmission to ensure that the content can be accurately sent to the correct exhibition display device.

[0110] The system will determine the new content to be displayed, i.e. the target exhibition theme package, based on the read information of the NFC card and the records in the exhibition theme package database. Then, the system will use the address of the exhibition display device to send instructions and data to update the display content on the exhibition display device. The target exhibition theme package can contain multiple files and data streams, which need to be adapted and distributed according to the parameters of the display screen (such as resolution, size, orientation, etc.).

[0111] Optionally, the system will distribute the target exhibition theme package to all networked exhibition display devices, or only to specific exhibition display devices as needed.

[0112] In one embodiment, after switching the display content of the exhibition display device using the target exhibition theme package, the method further includes:

[0113] According to the card reading number of the NFC card when it was read last time, a card reading number is set for the current card reading event of the NFC card to obtain the latest card reading number;

[0114] The latest card reading number and the corresponding second exhibition theme package number are written into the card reading record.

[0115] In this embodiment, each time an NFC card is read by an NFC card reader, the system sets a new card reading number based on the card reading number of the last time the NFC card was read. The card reading number is unique and is used to identify each card reading event.

[0116] The system will query the card reading record corresponding to the NFC card, which includes the card reading number and the corresponding exhibition theme package number of all previous card reading events. According to the latest card reading event, the system will add a new record to the record, including the latest card reading number and the corresponding exhibition theme package number.

[0117] The latest card reading number and the corresponding exhibition theme package number will be written into the card reading record to track and manage the card reading history of all NFC cards and the corresponding exhibition content, ensuring accurate switching of exhibition content.

[0118] For example, suppose an exhibition hall has multiple exhibition areas, each of which has its own NFC card reader and exhibition display equipment.

[0119] When the exhibition worker enters the first exhibition area and uses an NFC card, the card reader reads the card information, the system sets a card reading number (such as 001), and queries the exhibition theme package corresponding to the card (such as "Ancient Civilization"), and then writes the card reading number 001 and the "Ancient Civilization" exhibition theme package number into the card reading record.

[0120] When the exhibition worker moves to the next exhibition area and uses the NFC card again, the system will set a new card reading number (such as 002), query the new exhibition theme package (such as "Modern Art"), and then update the card reading number 002 and the "Modern Art" exhibition theme package number to the card reading record.

[0121] In one embodiment, before the exhibition worker places the NFC card on the NFC card reader corresponding to the exhibition display device, the process further includes:

[0122] Obtaining identity information of exhibition workers, and encrypting the identity information according to a symmetric encryption algorithm to obtain a key;

[0123] Creating an anti-counterfeiting identification code, and encrypting the anti-counterfeiting identification code to obtain anti-counterfeiting information;

[0124] A unique card identifier of the NFC card is set, the card identifier is recorded in the NFC card, and the key and the anti-counterfeiting information are written into the NFC card into which the card identifier has been recorded.

[0125] This embodiment can ensure the security of the identity information of exhibition workers and the data stored in the NFC card through encryption technology, and realize the use of NFC cards for security verification and content management.

[0126] Specifically, the system needs to obtain the identity information of the exhibition worker, including name, ID number, employee number or other unique identification. At the same time, the identity information is encrypted using a symmetric encryption algorithm (such as AES, DES, etc.). The symmetric encryption algorithm uses the same key for encryption and decryption.

[0127] In addition, to ensure the uniqueness and security of the NFC card, the system will create an anti-counterfeiting identification code. The anti-counterfeiting identification code is unique and difficult to copy or forge. It can be in the form of graphics, text, strings or garbled codes. The anti-counterfeiting identification code can also be encrypted by a symmetric encryption algorithm to generate anti-counterfeiting information to ensure its security.

[0128] Each NFC card is given a unique card identifier, which can be a unique serial number or ID, and the encrypted key and anti-counterfeiting information are written into the NFC card. In this way, only the system with the correct key can read and interpret the data in the card, ensuring the security of the data.

[0129] For example, suppose a museum exhibition worker needs to use an NFC card to access the system that controls the exhibition content. The employee number of the exhibition worker is "E12345", and the system uses the AES encryption algorithm to encrypt the employee number to obtain a key "K123456". The system creates an anti-counterfeiting identification code "FA12345" for the NFC card and encrypts it using the same encryption algorithm to obtain anti-counterfeiting information "FK123456".

[0130] The NFC card is set with a unique card identifier "NFC78910", and then the encrypted key "K123456" and anti-counterfeiting information "FK123456" are written into the card.

[0131] When exhibition workers read the NFC card on the card reader, the system will verify the key and anti-counterfeiting information in the card to ensure the safe display of the exhibition content.

[0132] In this way, the display of exhibition content can be safely controlled by NFC cards, while ensuring the identity authentication of exhibition workers and the security of exhibition content. The system can be used in museums, art exhibitions, corporate exhibition halls and other occasions to improve the security and efficiency of exhibition content management.

[0133] In one embodiment, before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes:

[0134] Decrypting the anti-counterfeiting information, extracting the anti-counterfeiting identification code, and comparing the anti-counterfeiting identification code with a standard anti-counterfeiting identification code;

[0135] After the comparison is passed, a verification instruction is sent to the NFC card;

[0136] Obtaining an initial verification code sent by the NFC card based on the verification instruction;

[0137] Acquire a key corresponding to the NFC card according to the card identifier, and use the key to encrypt the initial verification code to obtain an initial encrypted verification code;

[0138] Randomly generate an intermediate check code;

[0139] Performing an XOR operation on the initial encryption verification code and the intermediate verification code, and encrypting them with the key to obtain the information to be verified;

[0140] Sending the information to be verified to the NFC card;

[0141] When the data obtained by encrypting the initial verification code by the NFC card reader using the key is consistent with the data obtained by decrypting the information to be verified after comparison, a message that the NFC card reader has passed the verification of the NFC card is received, and the step of querying the card reading record and the exhibition theme package database corresponding to the NFC card according to the card identifier is performed.

[0142] In this embodiment, the system first decrypts the encrypted anti-counterfeiting information in the NFC card to extract the anti-counterfeiting identification code, and at the same time extracts the standard anti-counterfeiting identification code from the local database. The standard anti-counterfeiting identification code is a legal anti-counterfeiting identification code, and compares the decrypted anti-counterfeiting identification code with the standard anti-counterfeiting identification code stored in the system to verify the legitimacy of the NFC card.

[0143] If the anti-counterfeiting identification code is matched, the system will send a verification instruction to the NFC card's corresponding NFC card reader to verify the NFC card, requiring the NFC card reader to provide an initial verification code after reading the NFC card. The initial verification code can be in the form of a string. The NFC card reader returns an initial verification code according to the verification instruction.

[0144] The system finds the key associated with the NFC card based on the card ID, and uses the obtained key to encrypt the initial verification code to obtain the initial encrypted verification code. In addition, the system will randomly generate an intermediate verification code for subsequent verification processes.

[0145] Then, the initial encrypted verification code and the intermediate verification code are XORed, and the result after the XOR operation is encrypted using a key to obtain the information to be verified, and the information to be verified is sent to the NFC card.

[0146] The NFC card reader uses the same key to encrypt the initial verification code to obtain the target encrypted data. At the same time, the NFC card reader decrypts the information to be verified to obtain the target decrypted data, and compares the target encrypted data with the target decrypted data. If the two are consistent, it means that the NFC card has passed the verification. The system receives the verification pass message sent by the NFC card reader and executes the step of querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier to further complete the security verification of the NFC card.

[0147] This embodiment can greatly increase the difficulty of counterfeiting NFC cards through the above-mentioned complex verification process, thereby improving the effectiveness of anti-counterfeiting. At the same time, the display of exhibition content can also be safely controlled through NFC cards, further improving the security of exhibition content.

[0148] In one embodiment, after switching the display content of the exhibition display device using the target exhibition theme package, the method further includes:

[0149] When a visitor is detected entering the exhibition hall, multiple historical exhibition visit data of the visitor are obtained;

[0150] Randomly select any two pieces of historical exhibition visit data from the plurality of historical exhibition visit data in chronological order, concatenate them, and convert them into binary data respectively, to obtain a plurality of visit character strings;

[0151] Obtain the types, locations and traffic of all historical exhibition halls to obtain exhibition hall data;

[0152] After converting the exhibition hall data into binary data, a plurality of exhibition hall character strings are obtained;

[0153] Calculating the visitor's interest in each historical exhibition hall according to the plurality of visit character strings and the plurality of exhibition hall character strings, and generating a visitor interest vector;

[0154] Obtain the types, locations and traffic of all target exhibition halls, and obtain the target exhibition hall data;

[0155] Performing vector processing on the target exhibition hall data to obtain a target exhibition hall vector;

[0156] The similarity between the visitor's interest vector and the target exhibition hall vector is calculated, and the target exhibition hall with a similarity greater than a preset threshold is screened out and recommended to the visitor.

[0157] This embodiment can recommend exhibition halls by analyzing the historical data of visitors and the characteristics of the exhibition halls. Specifically, when a visitor is monitored to enter the exhibition hall for exhibition, the data of all exhibitions that the visitor has visited in the past are collected to obtain multiple historical exhibition visit data, which may include the date, time, length of stay, etc. of the visit.

[0158] Two records are randomly selected from multiple historical exhibition visit data of visitors and spliced ​​into a new data record in chronological order to capture the changes in visitors' interests by combining data at different time points.

[0159] Then, the spliced ​​historical visit data is converted into a binary format for subsequent similarity calculation processing. At the same time, the type, location, and flow of people of all historical exhibition halls visited by the visitor are collected to obtain exhibition hall data, which will be used to analyze the visitor's interests. The exhibition hall data of all historical exhibition halls are also converted into binary data or vector form for calculation. Next, based on the visitor's multiple visit character strings and exhibition hall character strings, the visitor's interest in each historical exhibition hall is calculated, and a vector representing the interest is generated. The data of the target exhibition hall is collected, which may include the type, location, and flow of people of the exhibition hall. The data of the target exhibition hall is vectorized to generate the vector of the target exhibition hall, and the similarity between the visitor's interest vector and the target exhibition hall vector is calculated, for example, using the cosine similarity or other similarity measurement methods in the vector space model.

[0160] According to the calculated similarity, a target exhibition hall with a similarity greater than a preset threshold is screened out. The target exhibition hall is considered to be of possible interest to the visitor and is recommended to the visitor.

[0161] For example, suppose that a visitor named Mr. Zhang has visited the Robotics and Astronomy exhibition halls in the Science and Technology Museum. The backend randomly selects these two records, converts them into binary data, and analyzes that Mr. Zhang is more interested in the exhibition halls with high-tech and space exploration themes. The backend further obtains data on all exhibition halls in the Science and Technology Museum, including the newly opened virtual reality exhibition hall. By calculating the similarity between Mr. Zhang's interest vector and the vector of the virtual reality exhibition hall, it is analyzed that the match is very high, so the backend recommends the virtual reality exhibition hall to Mr. Zhang.

[0162] This embodiment can accurately provide personalized exhibition hall recommendations based on the visitor's historical behavior, which can increase the visitor's stay time and participation in the exhibition hall. At the same time, the recommendation model driven by user data can improve the exhibition hall's operating efficiency and provide visitors with a more customized visiting experience.

[0163] In one embodiment, the visitor's interest in each historical exhibition hall is calculated based on multiple visit character strings and multiple exhibition hall character strings, and a visitor interest vector is generated, including:

[0164] Set minimum support and minimum confidence;

[0165] Based on the minimum support and the minimum confidence, all possible frequent item sets of multiple visit character strings and multiple exhibition hall character strings are generated according to the Apriori algorithm, and the frequent item sets are used to characterize the association between the visit character string and the corresponding exhibition hall character string;

[0166] After weighted summing up the correlation between all visit character strings and the corresponding exhibition hall character strings in the frequent item set, the visitor's interest in each historical exhibition hall is obtained, and multiple visit character strings, multiple exhibition hall character strings and the corresponding interest degrees are respectively mapped to a unique position in the high-dimensional space, each position corresponds to a dimension, and the visitor interest vector is obtained.

[0167] In this embodiment, when constructing a recommendation model or performing association rule mining, the minimum support and minimum confidence are two important parameters that can help determine which rules or models are significant and worthy of further analysis.

[0168] Among them, the minimum support refers to the frequency of an item set (such as the behavior of visitors visiting a certain exhibition hall) in all historical exhibition visit data. If the support of an item set is lower than the minimum support, it will not be considered as a frequent item set. If the support of an item set is higher than the minimum support, it is considered frequent because it means that this item set is relatively common in historical behaviors. For example, if the minimum support is set to 5%, only those item sets that appear in at least 5% of the historical behaviors will be considered frequent.

[0169] The minimum confidence is the conditional probability of the next action occurring when the previous action occurs. It is used to measure the reliability of the rules. If the confidence of a rule is higher than the minimum confidence, then the rule is considered reliable. For example, if the minimum confidence is set to 70%, only those rules that have at least a 70% probability of the next action occurring when the previous action occurs will be retained.

[0170] It should be noted that the minimum support and minimum confidence can be customized.

[0171] Preferably, in a large data set, a lower minimum support may need to be set, because the frequency of occurrence of the item set itself may be very low. In a small data set, a higher minimum support may need to be set to avoid generating too many irrelevant frequent item sets. Therefore, when setting the minimum support, the data volume of multiple visit character strings and the data volume of multiple exhibition hall character strings can be calculated, and the data volume of multiple visit character strings and the data volume of multiple exhibition hall character strings are added together to obtain the total data volume. The minimum support corresponding to the total data volume is set according to the corresponding relationship between the data volume and the minimum support to complete the setting of the minimum support.

[0172] The minimum confidence can be set by first determining the expected rule strength, which is used to characterize the reliability of the rule for filtering all possible frequent item sets. If you want the filtering rule to be very reliable, you can set a higher minimum confidence. If you want to discover more possible filtering rules, even if they are not particularly strongly associated, you can set a lower minimum confidence.

[0173] This embodiment can use the Apriori algorithm to generate frequent itemsets according to the set minimum support and minimum confidence, and then perform weighted summation on the association between the visit string and the exhibition hall string in the frequent itemsets to obtain the visitor's interest in each historical exhibition hall. For example, assuming that the exhibition hall string corresponding to exhibition hall A is a, and the visit strings corresponding to the exhibition hall string a are a1, a2, and a3, if the corresponding associations are 0.9, 0.8, and 0.8, respectively, and the corresponding weights are 10, 15, and 20, respectively, then through weighted summation, the visitor's interest in exhibition hall A is 0.9*10+0.8*15+0.8*20=37.

[0174] Among them, the Apriori algorithm is an algorithm for association rule mining, which mines all frequent item sets in an iterative manner.

[0175] Finally, the visit string, exhibition hall string and their corresponding interest are mapped to a unique position in the high-dimensional space, and each position corresponds to a dimension, so as to obtain the visitor interest vector. All frequent item sets can be accurately mined through data mining technology, and the corresponding vectors can be generated, so as to improve the accuracy of subsequent similarity calculations, and then accurately screen out the target exhibition halls for visitors.

[0176] For example, suppose visitor Zhang San has visited the Robotics and Astronomy exhibition halls of the Science and Technology Museum in the past. The backend uses the Apriori algorithm to analyze the string corresponding to Zhang San's visit record and finds that he is more interested in exhibition halls with high-tech and space exploration themes. These interests are then mapped into a high-dimensional space to form an interest vector. When the backend needs to recommend a new exhibition hall, it calculates the similarity between the interest vector and the new exhibition hall vector. If the similarity is higher than a certain threshold, the exhibition hall will be recommended to Zhang San.

[0177] Please refer to Figure 2 The embodiment of the present invention further provides an NFC personalized display device for a large screen, comprising:

[0178] The receiving module 11 is used for receiving the card information obtained by the NFC card reader reading the NFC card when the exhibition worker places the NFC card on the NFC card reader corresponding to the exhibition display device, wherein the card information includes the card identification;

[0179] A first query module 12 is used to query the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, wherein the card reading record includes a card reading number and an exhibition theme package number corresponding to each card reading number, and the exhibition theme package database includes multiple exhibition theme packages;

[0180] The second query module 13 is used to query the first exhibition theme package number corresponding to the card reading number when the NFC card was read last time according to the card reading record, query the next exhibition theme package number of the first exhibition theme package number, and obtain the second exhibition theme package number;

[0181] The switching module 14 is used to obtain the target exhibition theme package corresponding to the second exhibition theme package number from the exhibition theme package database, and use the target exhibition theme package to switch the display content of the exhibition display device.

[0182] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0183] A terminal provided by the present invention includes a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the NFC personalized display method for a large screen as described in any one of the above items.

[0184] In one embodiment, the terminal provided in one embodiment of the present application refers to Figure 3 The terminal may be a computer device, and its internal structure may be as follows Figure 3 As shown. The computer device includes a processor, a memory, a network interface, a display screen and an input device connected via a system bus. Among them, the processor designed by the computer is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store relevant data of the NFC personalized display method for large screens. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the NFC personalized display method for large screens described in the above embodiment is implemented.

[0185] In one embodiment, the present invention further proposes a storage medium storing computer-readable instructions, which, when executed by one or more processors, enables one or more processors to execute the above-mentioned NFC personalized display method for large screens. The storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0186] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The aforementioned storage medium can be a non-volatile storage medium such as a disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0187] Based on the above embodiments, it can be seen that the greatest beneficial effect of the present invention is:

[0188] The NFC personalized display method and terminal for large screens provided by the present invention can quickly switch the corresponding display content through the NFC card, and the operation is convenient; a corresponding exhibition theme package database is constructed according to the NFC card identifier, and each exhibition theme package database contains multiple exhibition theme packages, so as to perform personalized display according to different exhibition needs and meet the needs of different users; in addition, each exhibition theme package can be automatically recorded according to the card reading record of the NFC card, so as to ensure the accurate switching of the exhibition content.

[0189] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of the technical features, they should be considered to be within the scope of this specification.

[0190] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A NFC personalized display method for a large screen, characterized in that: include: When an exhibition worker places an NFC card on an NFC card reader corresponding to an exhibition display device, the exhibition worker receives card information obtained by the NFC card reader reading the NFC card, wherein the card information includes a card identifier; According to the card identifier, query the card reading record and exhibition theme package database corresponding to the NFC card, wherein the card reading record includes a card reading number and an exhibition theme package number corresponding to each card reading number, and the exhibition theme package database includes multiple exhibition theme packages; According to the card reading record, query the first exhibition theme package number corresponding to the card reading number when the NFC card was read last time, query the next exhibition theme package number of the first exhibition theme package number, and obtain the second exhibition theme package number; Acquire a target exhibition theme package corresponding to the second exhibition theme package number from the exhibition theme package database, and use the target exhibition theme package to switch the display content of the exhibition display device; Before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes: Building a corresponding exhibition theme package database according to the card identifier of the NFC card; Selecting a plurality of exhibition theme packages of different theme types for the NFC card; Sorting the multiple exhibition theme packages according to the narrative flow of the exhibition to obtain a sorting result; Assigning an exhibition theme package number to each of the exhibition theme packages in order according to the sorting result, and storing the multiple exhibition theme packages and the corresponding exhibition theme package numbers in the exhibition theme package database; Before the exhibition worker places the NFC card on the NFC card reader corresponding to the exhibition display device, the method further includes: Obtaining identity information of exhibition workers, and encrypting the identity information according to a symmetric encryption algorithm to obtain a key; Creating an anti-counterfeiting identification code, and encrypting the anti-counterfeiting identification code to obtain anti-counterfeiting information; Setting a unique card identifier of the NFC card, recording the card identifier in the NFC card, and writing the key and the anti-counterfeiting information into the NFC card into which the card identifier has been recorded; Before querying the card reading record and exhibition theme package database corresponding to the NFC card according to the card identifier, the method further includes: Decrypting the anti-counterfeiting information, extracting the anti-counterfeiting identification code, and comparing the anti-counterfeiting identification code with a standard anti-counterfeiting identification code; After the comparison is passed, a verification instruction is sent to the NFC card; Obtaining an initial verification code sent by the NFC card based on the verification instruction; Acquire a key corresponding to the NFC card according to the card identifier, and use the key to encrypt the initial verification code to obtain an initial encrypted verification code; Randomly generate intermediate check code; Performing an XOR operation on the initial encryption verification code and the intermediate verification code, and encrypting them with the key to obtain the information to be verified; Sending the information to be verified to the NFC card; When the data obtained by encrypting the initial verification code by the NFC card reader using the key is consistent with the data obtained by decrypting the information to be verified after comparison, a message that the NFC card reader has passed the verification of the NFC card is received, and the step of querying the card reading record and the exhibition theme package database corresponding to the NFC card according to the card identifier is performed; After the display content of the exhibition display device is switched by using the target exhibition theme package, the method further includes: When a visitor is detected to enter the exhibition hall, multiple historical exhibition visit data of the visitor are obtained; Randomly select any two pieces of historical exhibition visit data from the plurality of historical exhibition visit data in chronological order, concatenate them, and convert them into binary data respectively, to obtain a plurality of visit character strings; Obtain the types, locations and traffic of all historical exhibition halls to obtain exhibition hall data; After converting the exhibition hall data into binary data, a plurality of exhibition hall character strings are obtained; Calculating the visitor's interest in each historical exhibition hall according to the plurality of visit character strings and the plurality of exhibition hall character strings, and generating a visitor interest vector; Obtain the types, locations and traffic of all target exhibition halls, and obtain the target exhibition hall data; Performing vector processing on the target exhibition hall data to obtain a target exhibition hall vector; Calculating the similarity between the visitor's interest vector and the target exhibition hall vector, screening out the target exhibition halls whose similarity is greater than a preset threshold and recommending them to the visitor; The calculating the visitor's interest in each historical exhibition hall according to the plurality of visit character strings and the plurality of exhibition hall character strings and generating a visitor's interest vector comprises: Set minimum support and minimum confidence; Based on the minimum support and the minimum confidence, all frequent item sets involved in multiple visit character strings and multiple exhibition hall character strings are generated according to the Apriori algorithm, and the frequent item sets are used to characterize the association between the visit character string and the corresponding exhibition hall character string; After weighted summing the associations of all visit strings and corresponding strings of each exhibition hall in the frequent item set, the visitor's interest in each historical exhibition hall is obtained, and multiple visit strings, multiple exhibition hall strings and the corresponding interest are respectively mapped to a unique position in a high-dimensional space, each position corresponds to a dimension, to obtain a visitor interest vector; The setting of the minimum support and the minimum confidence includes: Calculate the data volume of multiple visit character strings and the data volume of multiple exhibition hall character strings, add the data volume of multiple visit character strings and the data volume of multiple exhibition hall character strings to obtain the total data volume, and set the minimum support corresponding to the total data volume according to the corresponding relationship between the data volume and the minimum support; An expected rule strength is determined, and a minimum confidence is set according to the expected rule strength, wherein the expected rule strength is used to characterize the reliability of the rule for screening all involved frequent item sets.

2. The NFC personalized display method for large screen according to claim 1, characterized in that: Switching the display content of the exhibition display device by using the target exhibition theme package includes: Parsing the target exhibition theme package to obtain multiple target exhibition contents; Obtaining parameter information of each display screen in the exhibition display device; According to the parameter information of each display screen, the target display content is allocated to each display screen, and the multiple target display contents are distributed to the corresponding display screens for display.

3. The NFC personalized display method for large screen according to claim 1, characterized in that: Switching the display content of the exhibition display device by using the target exhibition theme package includes: Querying the device address of the exhibition display device; The target exhibition theme package is sent to the exhibition display device according to the device address, so that the exhibition display device switches the display content to the target exhibition content of the target exhibition theme package.

4. The NFC personalized display method for large screen according to claim 1, characterized in that: After switching the display content of the exhibition display device by using the target exhibition theme package, the method further includes: According to the card reading number of the NFC card when it was read last time, a card reading number is set for the current card reading event of the NFC card to obtain the latest card reading number; The latest card reading number and the corresponding second exhibition theme package number are written into the card reading record.

5. A terminal, characterized in that: It comprises a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the NFC personalized display method for a large screen as described in any one of claims 1 to 4.

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