Data processing method and system based on ORC visual identification
By combining OCR visual recognition with QR code recognition, the data processing method solves the problems of diversity and coordination in entry data processing in exhibition scenarios, and achieves efficient and accurate data collection and verification, thereby improving the efficiency and security of entry management.
Patent Information
- Application Number
- CN202511503779.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-02-10
AI Technical Summary
In existing technologies, entry data processing in scenarios such as exhibitions suffers from problems such as single data types, low accuracy, poor efficiency, and weak collaboration. This leads to a break in the connection between data processing and subsequent entry verification, resulting in long waiting times for users and the risk of forged credentials for entry.
The data processing method based on OCR visual recognition is adopted. By combining the OCR visual recognition unit and the QR code recognition unit, it supports three data input methods: business cards, QR codes and invitation codes. The central processing module performs signal verification and standardization processing, generates standardized data packets, and works in conjunction with the printing module to generate electronic admission tickets. The gate module performs secondary verification.
It enables efficient collection and accurate conversion of various data types, seamless integration of printing output and entry verification, improves entry management efficiency, reduces congestion at the venue entrance and the risk of forged credentials, and shortens user waiting time.
Smart Images
Figure CN121505727A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of data processing technology, and in particular to a data processing method and system based on ORC visual recognition. Background Technology
[0002] In scenarios such as exhibitions and large-scale events, the core requirement for entry management is to quickly and accurately process personnel entry data and generate valid entry credentials. Existing entry data processing solutions have significant shortcomings: First, the data processing type is limited; most solutions only support QR code scanning or manual registration, failing to meet the needs of different users, such as those holding business cards or only obtaining invitation codes. Second, data processing accuracy and efficiency are low; manual registration is prone to errors, and traditional scanning and recognition technologies have insufficient recognition rates for blurry business cards and low-resolution QR codes, leading to invalid data and repeated operations. Third, the connection between data processing and subsequent entry verification is broken; the data processing module only generates credentials and cannot coordinate with the gate system for verification, increasing the risk of forged credentials. Fourth, printing response is slow; the separation of data conversion and printing output logic results in excessively long waiting times for users from data submission to obtaining entry tickets, especially during peak hours, easily causing congestion at the venue entrance and affecting entry order and the exhibition experience. Therefore, there is an urgent need for an OCR visual recognition data processing solution that can integrate multiple data types, improve processing accuracy and efficiency, and achieve end-to-end collaboration. Therefore, this application proposes a data processing method and system based on ORC visual recognition to at least partially solve the problems existing in the prior art. Summary of the Invention
[0003] In view of the aforementioned problems, this application is proposed to provide a data processing method and system based on ORC visual recognition to overcome or at least partially solve the aforementioned problems. The aim is to overcome the shortcomings of existing technologies in terms of single entry data processing type, low accuracy, poor efficiency, and weak collaboration, to achieve efficient collection, accurate conversion, and effective verification of multiple types of entry data, and to seamlessly connect with printing output and entry verification, thereby improving entry management efficiency and avoiding congestion at the venue entrance.
[0004] A data processing method based on ORC visual recognition includes: S1. Data collection triggering steps: The user places the business card in the business card placement area of the OCR visual recognition unit, aligns the carrier containing the entry QR code with the scanning area of the QR code recognition unit, or enters the invitation code in the display module to trigger the corresponding data collection unit to start. S2. Data extraction and conversion steps: The OCR visual recognition unit converts the business card text image into a digital signal, the QR code recognition unit converts the QR code data into a digital signal, the invitation code input module transmits the invitation code to the central processing module, and the central processing module matches the digital signal corresponding to the invitation code. S3. Data verification and standardization steps: The central processing module verifies the validity of digital signals, eliminates invalid signals, standardizes valid signals according to a preset format, and generates standardized data packets. S4. Printing output control steps: The central processing module sends a standardized data packet to the printing module. The printing module selects the cardboard or RFID electronic tag printing mode according to the data packet, completes the printing of the electronic admission ticket, and separates it through the tear line. S5. Entry verification coordination steps: The admission ticket sensing and recognition device reads the electronic admission ticket data. If the verification is successful, the gate is opened. If the verification fails, an abnormal prompt is issued.
[0005] Furthermore, when the OCR visual recognition unit and the QR code recognition unit are activated, the corresponding LED supplementary lighting components are turned on simultaneously to provide supplementary lighting with a color temperature of 6500K.
[0006] Furthermore, the preset format of the standardized data packet includes fields such as "personnel identification", "entry permission identification", "printing media type" and "printing content layout". The printing content layout field defines the positional distribution of personnel identification information and QR codes on the printing media.
[0007] Furthermore, the admission ticket sensing and recognition device transmits the read electronic admission ticket data to the central processing module or the gate local controller for secondary verification. The secondary verification includes the consistency between the admission ticket data and the standardized data packet stored in the central processing module, and the matching of the entry permission with the current gate area.
[0008] In some embodiments of this application, a data processing system based on OCR visual recognition is also disclosed to implement the above-mentioned data processing method based on OCR visual recognition. The system includes an integrated data processing terminal and a gate collaborative recognition module. The integrated data processing terminal includes an OCR visual recognition unit, a QR code recognition unit, an invitation code input module, a central processing module, a display module, and a printing module; The OCR visual recognition unit is set in a groove on the lower front of the display module. A lens unit and an OCR text information processing unit are provided at the top of the groove. A business card placement area is provided directly below the lens unit in the groove. Several LED fill light components are provided on the upper edge of the groove. The OCR text information processing unit is used to convert the business card text image captured by the lens unit into a digital signal. The QR code recognition unit is set in the groove adjacent to the OCR visual recognition unit. The QR code recognition unit is located at the top of the groove, and a QR code scanning area is located directly below the QR code recognition unit in the groove. Several LED fill light components are provided on the upper edge of the groove. The QR code recognition unit is used to parse the QR code image and convert it into a digital signal. The invitation code input module is integrated into the display module, which is a touch screen display located at the top of the integrated data processing terminal. It is used to receive the invitation code input by the user and display operation instructions, data processing progress and error prompts. The central processing module is electrically connected to the OCR visual recognition unit, the QR code recognition unit, the invitation code input module, the display module, and the printing module. The central processing module has a built-in data conversion rule library, a data verification logic module, and an invitation code-entry information association library. It is used to convert the raw data transmitted by the OCR visual recognition unit, the QR code recognition unit, and the invitation code input module into standardized digital signals, verify the validity of the data, and match the corresponding entry information. The printing module is used to receive standardized digital signals output by the central processing module and print electronic admission tickets. The printing medium of the printing module is cardboard or RFID wireless radio frequency identification electronic tags. The cardboard has a QR code and tear lines between adjacent cardboard pieces. The RFID wireless radio frequency identification electronic tag has a double-layer cardboard structure with an RFID wireless radio frequency coil in the interlayer of the double-layer cardboard and tear lines between adjacent RFID electronic tags. The gate collaborative identification module is installed on the venue entrance gate system and includes an admission ticket sensing and identification device. The left side of the admission ticket sensing and identification device is an RFID wireless radio frequency identification electronic tag sensing area, and the right side is a cardboard QR code recognition area. The admission ticket sensing and identification device is used to verify the electronic admission ticket data and control the gate opening and closing.
[0009] Optionally, the OCR text information processing unit is built on the Tesseract OCR engine, with a built-in character recognition library for commonly used fonts on business cards (SimSun, Heiti, Kaiti), supporting text recognition of font sizes from 6 to 14pt, and a text recognition accuracy of ≥98%.
[0010] Optionally, the verification rules of the data verification logic module of the central processing module include: verifying whether the business card digital signal contains name and company fields, verifying whether the QR code digital signal contains valid entry time and regional permission fields, and verifying whether the digital signal matching the invitation code has a valid entry record.
[0011] Optionally, the printing module is a thermal printer with a printing speed of ≥150mm / s, and the standardized digital signal is in JSON format, including fields for "personnel identification", "access permission identification", "printing media type" and "print content layout".
[0012] This application has the following advantages: In the embodiments of this application, the user places a business card in the business card placement area of the OCR visual recognition unit, aligns the carrier containing the entry QR code with the scanning area of the QR code recognition unit, or enters an invitation code into the display module, triggering the corresponding data acquisition unit to start. The OCR visual recognition unit converts the text image of the business card into a digital signal, the QR code recognition unit converts the QR code data into a digital signal, the invitation code input module transmits the invitation code to the central processing module, and the central processing module matches the digital signal corresponding to the invitation code. The central processing module verifies the validity of the digital signal, eliminates invalid signals, and standardizes the valid signals according to a preset format to generate a standardized data packet. The central processing module sends the standardized data packet to the printing module, which selects either a cardboard or RFID electronic tag printing mode based on the data packet, completes the printing of the electronic admission ticket, and separates it through a tear line. The admission ticket sensing and recognition device reads the electronic admission ticket data; if the verification is successful, it controls the gate to open; if the verification fails, it issues an error message. Through multi-type data acquisition and integration processing, it supports three data input methods: business card, QR code, and invitation code, adapting to different users' entry data holding scenarios, avoiding entry barriers caused by the failure of a single data acquisition method, and improving user adaptability. Attached Figure Description
[0013] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a flowchart of the steps of a data processing method based on ORC visual recognition provided in an embodiment of this application. Detailed Implementation
[0015] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0016] Reference Figure 1 The illustration shows a data processing method based on ORC visual recognition according to an embodiment of this application, comprising: S1. Data collection triggering steps: The user triggers data collection in one of three ways: placing a business card in the business card placement area of the OCR visual recognition unit, the LED fill light is turned on, and the lens unit starts scanning; aligning the carrier containing the entry QR code with the scanning area of the QR code recognition unit, the LED fill light is turned on, and the QR code recognition unit starts scanning; or entering an invitation code on the touch screen of the display module, and the invitation code input module receives the input data. S2. Data Extraction and Conversion Steps: If it is a business card acquisition, the OCR text information processing unit converts the business card text image acquired by the lens unit into a digital signal containing information such as name, company, and position, based on the preset text area positioning parameters and character recognition library; if it is a QR code acquisition, the QR code recognition unit parses the QR code image, extracts data such as access permissions and personnel information, and converts it into a digital signal; if it is an invitation code acquisition, the invitation code input module transmits the invitation code entered by the user to the central processing module, and the central processing module calls the invitation code-access information association library to match and extract the corresponding personnel identity information and access permission information to form a digital signal. S3. Data Verification and Standardization Steps: The verification logic module of the central processing module verifies the validity of the digital signals converted in step S2—verifying whether the business card digital signal contains key fields such as name and organization, whether the QR code digital signal contains valid entry time and area permissions, and whether the invitation code matching digital signal has a valid entry record; invalid digital signals are eliminated, and valid digital signals are standardized according to a preset format (including "personnel identification", "entry permission identification", "printing media type" and "printing content layout") to generate standardized data packets. S4. Print Output Control Steps: The central processing module sends standardized data packets to the printing module. The printing module selects the corresponding printing mode based on the "printing media type" in the data packet—if it is cardboard, it prints personnel identification information and a QR code on the cardboard, and separates the sheets individually using tear lines; if it is an RFID electronic tag, it writes access permission data into the RFID wireless radio frequency coil while printing personnel identification information, and separates the sheets individually using tear lines; the printing progress is fed back to the display module in real time. S5. Entry Verification Collaboration Steps: When a user presents their electronic admission ticket to the gate system, the corresponding area (RFID sensing area or QR code recognition area) of the admission ticket sensor reads the admission ticket data and transmits the data to the central processing module or the gate's local controller for secondary verification. If the verification is successful, a control signal is sent to the gate to open it; if the verification fails, an error message is issued through the gate system's prompting module.
[0017] This application utilizes multi-type data collection and integration processing to support three data input methods: business cards, QR codes, and invitation codes. This adapts to different users' entry data holding scenarios, avoiding entry barriers caused by the failure of a single data collection method and improving user adaptability. The OCR visual recognition unit, combined with LED supplementary lighting and dedicated text processing logic, improves the text recognition accuracy of blurry and low-contrast business cards. In conjunction with the verification logic of the central processing module, invalid data is effectively eliminated, ensuring the accuracy of admission ticket information and reducing entry disputes caused by information errors. Data processing, printing output, and entry verification are coordinated end-to-end, with a response time of ≤10 seconds from data collection to printing completion. This significantly shortens the user waiting period and can significantly reduce the queue length at the venue entrance during peak hours, avoiding congestion. At the same time, secondary verification through gate-based collaborative recognition enhances entry security and prevents entry with counterfeit credentials.
[0018] In some embodiments of this application, a data processing system based on OCR visual recognition is disclosed. This system can be used to implement the aforementioned data processing method based on OCR visual recognition. The system includes an integrated data processing terminal and a gate collaborative recognition module. The integrated data processing terminal includes an OCR visual recognition unit, a QR code recognition unit, an invitation code input module, a central processing module, a display module, and a printing module. The OCR visual recognition unit is disposed in a groove on the lower front of the display module. A lens unit and an OCR text information processing unit are provided at the top of the groove. A business card placement area is provided directly below the lens unit in the groove, and several LEDs are provided on the upper edge of the groove. The optical components include: the OCR text information processing unit, which converts the business card text image captured by the lens unit into a digital signal; the QR code recognition unit, which is located in a groove adjacent to the OCR visual recognition unit, with a QR code recognition unit at the top of the groove and a QR code scanning area directly below it; and several LED fill lights on the upper edge of the groove. The QR code recognition unit is used to parse the QR code image and convert it into a digital signal. The invitation code input module is integrated into the display module, which is a touch screen display located at the top of the integrated data processing terminal. It is used to receive the invitation code input by the user and display operation instructions and data processing progress. The system provides information on degree of error and error alerts. The central processing module is electrically connected to the OCR visual recognition unit, QR code recognition unit, invitation code input module, display module, and printing module. The central processing module includes a built-in data conversion rule base, data verification logic module, and invitation code-entry information association library. It converts the raw data transmitted by the OCR visual recognition unit, QR code recognition unit, and invitation code input module into standardized digital signals, verifies data validity, and matches corresponding entry information. The printing module receives the standardized digital signals output by the central processing module and prints electronic admission tickets. The printing medium for the printing module is cardboard or RFID (Radio Frequency Identification) electronic admission tickets. The sub-label has a QR code on the cardboard sheet, and tear lines are provided between adjacent cardboard sheets. The RFID wireless radio frequency identification electronic tag has a double-layer cardboard structure, with an RFID wireless radio frequency coil inside the double-layer cardboard layer. Tear lines are also provided between adjacent RFID electronic tags. The gate collaborative identification module is installed on the venue entrance gate system and includes an admission ticket sensing and identification device. The left side of the admission ticket sensing and identification device is the RFID wireless radio frequency identification electronic tag sensing area, and the right side is the cardboard sheet QR code recognition area. The admission ticket sensing and identification device is communicatively connected to the central processing module or the gate local controller to verify the electronic admission ticket data and control the gate opening and closing.
[0019] This system is compatible with both cardboard and RFID tags, allowing for flexible selection based on exhibition scale and access management accuracy requirements. Cardboard is suitable for single-entry, low-cost scenarios, while RFID tags are suitable for multiple entries and exits requiring precise trajectory tracking, thus enhancing system applicability. The overall system adopts an integrated terminal design, which is compact, flexible in deployment, and eliminates the need for complex wiring, reducing equipment installation and management costs at the exhibition site. Meanwhile, the touch screen display and LED supplementary lighting enhance user convenience and adaptability to the identification environment.
[0020] As an example, the overall hardware deployment of the above system can be configured with an integrated data processing terminal made of ABS engineering plastic, with dimensions of 120cm (height) × 50cm (width) × 40cm (depth), convenient for placement in the entrance area of the venue; the display module uses a 15.6-inch capacitive touchscreen with a resolution of 1920×1080, supporting multi-touch; the OCR visual recognition unit uses a 5-megapixel industrial camera with an 8mm focal length, coupled with two 3W white LED fill lights (color temperature 6500K), and the business card placement area is 9cm × 5.4cm (suitable for standard business cards); the OCR text information processing unit uses a customized processing chip based on the Tesseract OCR engine, with a recognition accuracy of ≥98%; the QR code recognition unit uses a 2-megapixel CMOS scanning module, supporting mainstream QR code types such as QR codes and Data Matrix codes, with a scanning distance of 5-15cm, coupled with two 3W white LED fill lights; the central processing module uses a quad-core ARM processor. The device features a Cortex-A9 processor with a clock speed of 1.8GHz, 2GB of RAM, 8GB of storage, and comes pre-installed with a Linux operating system and built-in customized data processing software. The printing module uses a thermal printer with a printing speed of 150mm / s, supporting printing on 80mm wide cardboard and RFID tags. The RFID tags use copper wires in their coils, operate at a frequency of 13.56MHz, and have a reading distance of 0.5-1m. The gate's collaborative identification module employs an integrated design for its admission ticket sensing device. The RFID sensing area uses a 13.56MHz high-frequency reader, while the QR code recognition area uses a 2-megapixel scanner. It communicates with the gate controller via RS485.
[0021] The system software configuration, including the customized data processing software of the central processing module, is developed in C++ and includes a data receiving module, a conversion module, a verification module, a standardization module, a print control module, and a communication module. In the data conversion module, the OCR text processing algorithm is optimized for commonly used business card fonts (SimSun, Heiti, Kaiti), supporting text recognition with font sizes from 6-14pt. The verification module has preset verification rules for key fields (business cards must include name + company, QR codes must include entry ID + valid date, and invitation codes must match existing entry records). The standardization module uses JSON format for its data packets, with fields including "user_id (personnel identifier), user_name (name), user_company (company), entry_right (entry permission), media_type (printing media), and print_layout (print layout)". The print control module supports customizable text size, QR code position (bottom right corner), and logo insertion (center at the top). The communication module supports TCP / IP communication with the gate's collaborative recognition module, with a data transmission rate of 100Mbps.
[0022] In a specific example, a large electronics exhibition uses the system of this invention for entry management, deploying 10 integrated data processing terminals in the exhibition entrance hall. Exhibitor A, holding a business card, places it in the business card placement area of the OCR visual recognition unit. LED supplementary lighting is activated, the lens unit scans the business card, and the OCR text processing unit recognizes and converts the name "Zhang San," the company "XX Electronics Technology Co., Ltd.," and the position "Project Manager" into digital signals. The central processing module verifies that the signal contains key fields and standardizes it into a JSON format data packet (media_type set to "cardboard"). The printing module receives the data packet and prints "Zhang San - XX Electronics Technology Co., Ltd. - Project Manager" and the corresponding QR code on the cardboard, completing the printing within 10 seconds. Exhibitor A then separates the cardboard entry ticket using the tear line. Upon reaching the gate system, the cardboard entry ticket is... The QR code is aligned with the QR code recognition area of the admission ticket sensor. After successful verification, the gate opens. Exhibitor B, holding the invitation code "YZ20240501001", enters the invitation code into the display module. The central processing module matches the associated database, extracts the name "Li Si", the company "YY Exhibition Service Company", and the entry permission "3 days in the entire area", and generates a standardized data package (media_type set to "RFID electronic tag"). The printing module prints the personnel information on the RFID electronic tag and writes the permission data. Exhibitor B holds the RFID electronic tag to the gate and places it close to the RFID sensing area. After successful verification, the gate opens. During the exhibition, the 10 terminals processed an average of 5,000+ entry data entries per day, with an average processing time of 8 seconds per entry. There was no significant congestion at the entrance, and the entry verification pass rate was 99.5%, significantly improving the efficiency of entry management.
[0023] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.
[0024] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0025] The above provides a detailed description of the data processing method and system based on ORC visual recognition provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A data processing method based on ORC visual recognition, characterized in that, Includes the following steps: S1. Data collection triggering steps: The user places the business card in the business card placement area of the OCR visual recognition unit, aligns the carrier containing the entry QR code with the scanning area of the QR code recognition unit, or enters the invitation code in the display module to trigger the corresponding data collection unit to start. S2. Data extraction and conversion steps: The OCR visual recognition unit converts the business card text image into a digital signal, the QR code recognition unit converts the QR code data into a digital signal, the invitation code input module transmits the invitation code to the central processing module, and the central processing module matches the digital signal corresponding to the invitation code. S3. Data verification and standardization steps: The central processing module verifies the validity of digital signals, eliminates invalid signals, standardizes valid signals according to a preset format, and generates standardized data packets. S4. Printing output control steps: The central processing module sends a standardized data packet to the printing module. The printing module selects the cardboard or RFID electronic tag printing mode according to the data packet, completes the printing of the electronic admission ticket, and separates it through the tear line. S5. Entry verification coordination steps: The admission ticket sensing and recognition device reads the electronic admission ticket data. If the verification is successful, the gate is opened. If the verification fails, an abnormal prompt is issued.
2. The method according to claim 1, characterized in that, When the OCR visual recognition unit and the QR code recognition unit are activated, the corresponding LED fill light components are turned on simultaneously to provide fill light with a color temperature of 6500K.
3. The method according to claim 1, characterized in that, The preset format of the standardized data packet includes fields such as "personnel identification", "entry permission identification", "printing media type" and "printing content layout". The printing content layout field defines the positional distribution of personnel identification information and QR codes on the printing media.
4. The method according to claim 1, characterized in that, The admission ticket sensing and recognition device transmits the read electronic admission ticket data to the central processing module or the gate local controller for secondary verification. The secondary verification includes the consistency between the admission ticket data and the standardized data packet stored in the central processing module, and the matching of the entry permission with the current gate area.
5. A data processing system based on OCR visual recognition, used to implement the data processing method based on OCR visual recognition as described in any one of claims 1-4, characterized in that, The system includes an integrated data processing terminal and a gate collaborative identification module; The integrated data processing terminal includes an OCR visual recognition unit, a QR code recognition unit, an invitation code input module, a central processing module, a display module, and a printing module; The OCR visual recognition unit is set in a groove on the lower front of the display module. A lens unit and an OCR text information processing unit are provided at the top of the groove. A business card placement area is provided directly below the lens unit in the groove. Several LED fill light components are provided on the upper edge of the groove. The OCR text information processing unit is used to convert the business card text image captured by the lens unit into a digital signal. The QR code recognition unit is set in the groove adjacent to the OCR visual recognition unit. The QR code recognition unit is located at the top of the groove, and a QR code scanning area is located directly below the QR code recognition unit in the groove. Several LED fill light components are provided on the upper edge of the groove. The QR code recognition unit is used to parse the QR code image and convert it into a digital signal. The invitation code input module is integrated into the display module, which is a touch screen display located at the top of the integrated data processing terminal. It is used to receive the invitation code input by the user and display operation instructions, data processing progress and error prompts. The central processing module is electrically connected to the OCR visual recognition unit, the QR code recognition unit, the invitation code input module, the display module, and the printing module. The central processing module has a built-in data conversion rule library, a data verification logic module, and an invitation code-entry information association library. It is used to convert the raw data transmitted by the OCR visual recognition unit, the QR code recognition unit, and the invitation code input module into standardized digital signals, verify the validity of the data, and match the corresponding entry information. The printing module is used to receive standardized digital signals output by the central processing module and print electronic admission tickets. The printing medium of the printing module is cardboard or RFID wireless radio frequency identification electronic tags. The cardboard has a QR code and tear lines between adjacent cardboard pieces. The RFID wireless radio frequency identification electronic tag has a double-layer cardboard structure with an RFID wireless radio frequency coil in the interlayer of the double-layer cardboard and tear lines between adjacent RFID electronic tags. The gate collaborative identification module is installed on the venue entrance gate system and includes an admission ticket sensing and identification device. The left side of the admission ticket sensing and identification device is an RFID wireless radio frequency identification electronic tag sensing area, and the right side is a cardboard QR code recognition area. The admission ticket sensing and identification device is used to verify the electronic admission ticket data and control the gate opening and closing.
6. The system according to claim 5, characterized in that, The OCR text information processing unit is built on the TesseractOCR engine and has a built-in character recognition library for commonly used fonts on business cards. It supports text recognition of font sizes from 6 to 14pt and has a text recognition accuracy of ≥98%.
7. The system according to claim 5, characterized in that, The verification rules of the data verification logic module of the central processing module include: verifying whether the business card digital signal contains the name and organization fields, verifying whether the QR code digital signal contains the valid entry time and regional permission fields, and verifying whether the digital signal matching the invitation code has a valid entry record.
8. The system according to claim 5, characterized in that, The printing module is a thermal printer with a printing speed of ≥150mm / s. The standardized digital signal is in JSON format and includes fields for "personnel identification", "access permission identification", "printing media type" and "print content layout".