A system for preventing the misuse of a stamp based on iris recognition

Abstract

The application belongs to the technical field of computer information security, and discloses an anti-theft seal system based on iris recognition, which comprises a casing, a platform for projection arranged below the inside of the casing, a projector located right above the center point of the platform and projecting onto the platform, a control system for identifying and extracting the projection content on the platform through the cameras and sensors above both sides of the platform, the control system controlling the seal projection laser to project the seal after confirming the position of the seal area, and a printer arranged above the casing for printing the projected content. The application realizes the characteristics of visibility, manageability, controllability, traceability and checkability of the seal through digital technology, improves the data processing efficiency and safety, improves the seal management level and efficiency of enterprises, and reduces the management risk and cost related to seal management.

Description

Technical Field

[0001] This invention belongs to the field of computer information security technology, and specifically relates to an anti-theft seal system based on iris recognition. Background Technology

[0002] Traditional corporate seals are typically used with manual verification of information and manual registration of paper documents. However, this method carries multiple risks, including theft, unauthorized use, misuse, and forgery, and makes it difficult to trace the source.

[0003] To adapt to market development trends and demands, many intelligent stamping devices have emerged on the market. These devices primarily utilize IoT technology and smart hardware to install and lock stamps within the intelligent stamping equipment, allowing for remote monitoring and control of stamp usage via terminal software.

[0004] Current electronic seals are essentially equivalent to physical seals, making their use cumbersome and prone to problems such as unauthorized use, blank seals, counterfeit seals, and seals being taken outside the official premises. This is because existing virtual seal technology still relies on physical seals or dedicated electronic seal devices for generation and application, and its display is limited by the screen or printing medium, failing to produce a realistic projection effect in real-world scenarios. Therefore, it is necessary to comprehensively and seamlessly integrate information technology and digitalization into every aspect of seal usage, ensuring that management relies on processes, monitoring relies on tools, auditing relies on intelligence, and analysis relies on data. Existing technologies have addressed these issues, such as patent application CN109426710A, which discloses an iris-based electronic signature technology that uses the iris information of the administrator and the user for security authentication. However, this method only performs traditional data encryption on the iris information, posing a security risk, as the iris information can still be tampered with. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an anti-theft seal system based on iris recognition. It employs an iris recognition start-up and shutdown system and an administrator account to power on and authenticate the device, enabling facial recognition to re-identify the user each time a seal is applied. Blockchain technology is used to improve the security and traceability of seal application operations.

[0006] The present invention discloses an anti-theft seal system based on iris recognition, comprising a housing, a printer, a camera, a projector, a seal projection laser, a platform, and a control system. The printer is mounted on top of the housing. The printer, camera, projector, and seal projection laser are respectively connected to the control system. The control system verifies administrator privileges and controls the start and stop of the anti-theft seal system. A projection platform is located inside the housing. The projector is positioned above the platform and projects onto it. The control system identifies and extracts the projected content on the platform using cameras and sensors located on both sides above the platform. After confirming the position of the seal area, the control system controls the seal projection laser to project the seal, and saves and prints the projected content.

[0007] Furthermore, the control system includes a start / stop system, an identification system, a management platform, and a transmission system.

[0008] The start-stop system controls the connection or disconnection of the power supply inside the casing through iris recognition technology.

[0009] The recognition system includes a stamp sensing module and a platform projection recognition module. The stamp sensing module recognizes the content projected by the platform and determines the stamp area, and controls the stamp projection laser to illuminate the stamp in the stamp area.

[0010] The platform projection recognition module prints the projected content after the stamp and sends it to the management platform;

[0011] The management platform is used to register administrator identities and store the content printed by the printer;

[0012] The transmission system verifies the administrator's identity and projects the data content onto the platform using a projector.

[0013] Furthermore, the start-stop system includes:

[0014] The iris extraction module, which is installed on the outer wall of the casing, is used to acquire images of the iris in a person's eye;

[0015] The image feature module is used to extract identifiable features from iris images and encode them into digital form, which is then stored in the database.

[0016] The data comparison module compares newly acquired iris features with iris data in the database. Based on a preset threshold, it determines whether administrator authentication is successful. Once administrator authentication is successful, the system can send a signal to the controller to activate the circuit, thereby controlling the power supply circuit inside the casing. When the circuit is no longer needed, it can be stopped using the same method. Upon receiving a stop signal, the controller will shut down the circuit and cut off the power.

[0017] Furthermore, the seal sensing module includes:

[0018] The seal area recognition unit is used to identify and extract content on the platform using a camera and determine the seal area. Designed as a system with real-time feedback and optimization capabilities, the seal area recognition unit continuously collects and analyzes recognition results, and optimizes and adjusts based on feedback information to adapt to recognition needs in different scenarios and environments, thereby continuously improving recognition accuracy and stability.

[0019] The projection laser control unit is used to acquire images on the platform using a camera and sensors based on the determined stamp area, and to determine the position and center point of the stamp area through an image processing algorithm. It controls the stamp projection laser to be positioned above the center point of the stamp area, and uses the stamp projection laser to project the stamp onto the platform.

[0020] The stamp orientation adjustment unit uses a camera and sensors to acquire images and data, and transmits the results of image recognition and sensor data to the projection laser control unit. The control unit calculates the amount of change in the stamp orientation and position that needs to be adjusted based on this data, thereby determining the direction and position of the stamp projected onto the platform.

[0021] Furthermore, the platform projection recognition module includes:

[0022] A print recognition unit is used to organize the platform content recognized by the camera.

[0023] The print control unit is used to print the data organized by the print recognition unit and save it as a document to be sent to the management platform.

[0024] Furthermore, the management platform includes:

[0025] The cloud platform is used to receive data sent by the platform's projection recognition module and store it in the database;

[0026] The identity registration unit is used to enter the administrator's identity information to register an administrator account.

[0027] Furthermore, the administrator's identity information includes name, mobile phone number, employee number, and ID card number, and the administrator account format is employee number + name.

[0028] Furthermore, the transmission system uses the same IP address for data transmission.

[0029] Furthermore, the area illuminated by each camera is the entire platform area. Furthermore, the preferred installation angle of the camera is 35 to 50°, corresponding to the direction in which the camera is located.

[0030] The method of using the iris recognition-based anti-theft seal system includes the following steps:

[0031] Step 1: Enter the administrator's identity information in the control system and confirm the administrator account;

[0032] Step 2: Obtain an image of the administrator's iris, encode it into a digital format, and store it in the database as a condition for system start-up and shutdown;

[0033] Step 3: After the system approves the administrator's permissions, the administrator controls the system to start, and the system projects the required data content onto the platform through a projector.

[0034] Step 4: The control system uses a camera to identify and extract the content projected on the platform to determine the stamp area, and uses a stamp projection laser to project the stamp onto the stamp area.

[0035] Step 5: Print out the content after the stamp in Step 4 and send it to the management platform for storage as a document.

[0036] The beneficial effects of this invention are as follows:

[0037] 1. This invention utilizes digital technologies such as the Internet of Things, big data, artificial intelligence, and blockchain to achieve the characteristics of seals being visible, manageable, controllable, traceable, and verifiable, thereby improving data processing efficiency and security, enhancing the level and efficiency of seal management for enterprises, and reducing management risks and costs related to seal management.

[0038] 2. This invention can power on and authenticate the device by using an iris recognition start-up and shutdown system and a set administrator account, so as to realize the double identification of the user for each stamping; at the same time, it solves the risk of iris image theft or spoofing that may exist in traditional iris recognition technology, which helps to improve the security and traceability of stamping operations.

[0039] 3. This invention stores the extracted iris information on the blockchain. Once stored on the blockchain, it becomes an immutable record, which better ensures the integrity and authenticity of the data compared to traditional data encryption. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the system described in this invention;

[0041] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0042] Figure 3 This is a schematic diagram of the connection relationship of the control system of the present invention;

[0043] Figure 4 This is a schematic diagram of the start-stop system in this invention;

[0044] Figure 5 This is a schematic diagram of the seal sensing module in this invention;

[0045] Figure 6 This is a schematic diagram of the platform projection recognition module in this invention;

[0046] Figure 7 This is a flowchart of the method for implementing the present invention;

[0047] Figure 8 A comparison chart showing the change in the false recognition rate of the present invention compared to the prior art under different light intensities;

[0048] Among them, 1-casing, 2-printer, 3-camera, 4-projector, 5-stamp projection laser, 6-platform. Detailed Implementation

[0049] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0050] like Figures 1-3 As shown, the anti-theft seal system based on iris recognition of the present invention includes:

[0051] The system comprises a casing 1, a printer 2, a camera 3, a projector 4, a stamp projection laser 5, a platform 6, and a control system. The printer 2 is located on top of the casing 1. The printer 2, camera 3, projector 4, and stamp projection laser 5 are all connected to the control system. The control system verifies administrator privileges and controls the start and stop of the anti-theft stamp system. The casing 1 contains a platform 6 for projection. The projector 4 is positioned above the platform 6 and projects onto it. The control system identifies and extracts the projected content on the platform 6 using cameras 3 on both sides above the platform and sensors. The area illuminated by the cameras 3 is the entire area of ​​the platform 6. Corresponding to the direction of camera 3, the installation angle of camera 3 is preferably 35-50°; after the control system confirms the position of the stamp area, it controls the stamp projection laser 5 to project the stamp, and saves and prints the content after the stamp is projected.

[0052] The control system includes a start / stop system, an identification system, a management platform, and a transmission system. The start / stop system uses iris recognition technology to control the connection or disconnection of the power supply inside the casing. The identification system includes a stamp sensing module and a platform projection identification module. The stamp sensing module identifies the content projected onto the platform and determines the stamp area, then controls the stamp projection laser to illuminate the stamp area. The platform projection identification module prints the projected content after the stamp and sends it to the management platform. The management platform is used to register administrator identities and store the content printed by the printer. The transmission system verifies the administrator's identity and projects the data content onto the platform using a projector.

[0053] like Figure 4 As shown, the start / stop system includes:

[0054] An iris extraction module is installed on the outer wall of the housing 1 to acquire an image of the iris in the human eye;

[0055] The image feature module is used to extract identifiable features from iris images and encode them into digital form, which is then stored in the database.

[0056] The data comparison module is used to compare newly acquired iris features with iris data in the database, and determine whether to authenticate the administrator's identity based on a preset threshold, so as to realize the circuit for controlling the power supply inside the casing 1.

[0057] The recognition system includes a stamp sensing module and a platform projection recognition module. The platform projection recognition module is used to recognize the content projected on the platform 6, and the stamp sensing module is used to identify the stamp area based on the content projected on the platform 6, and to illuminate the stamp area using a stamp projection laser 5.

[0058] like Figure 5 As shown, the seal sensing module includes:

[0059] The seal area recognition unit is used to identify and extract the content on the platform 6 through the camera 3 and determine the seal area;

[0060] The projection laser control unit is used to control the stamp projection laser 5 to be positioned above the center point of the stamp area according to the determined stamp area, and to project the stamp onto the platform 6 using the stamp projection laser 5.

[0061] The stamp orientation adjustment unit determines the direction and position of the stamp projected onto the platform 6 based on the content identified and extracted by the camera 3. The specific calculation method is as follows:

[0062] (1) Calculate the deviation: Calculate the deviation between the current position of the stamp and the center position of the iris;

[0063] ,

[0064] in, and These are the deviations required for the seal to move horizontally and vertically, respectively. These are the coordinates of the iris center. It is the current coordinate of the seal;

[0065] (2) Orientation adjustment: When the stamp needs to be rotated to align with the iris, this is achieved by calculating the angle between the two:

[0066] ,

[0067] in, It refers to the angle at which the seal needs to be rotated.

[0068] like Figure 6 As shown, the platform projection recognition module includes:

[0069] The print recognition unit is used to organize the content of the platform 6 recognized by the camera 3;

[0070] The print control unit and print recognition unit are used to print the data organized by the print recognition unit. The printed content consists of two parts: one part is printed on A4 paper, and the other part is sent to the management platform in the form of a document.

[0071] The management platform is used to register administrator identities and automatically back up and save the content printed by printer 2.

[0072] Specifically, the management platform includes:

[0073] The cloud platform is used to receive data sent by the platform projection recognition module and store it in the database.

[0074] The identity registration unit is used to enter the administrator's identity information to register an administrator account. The administrator's identity information includes name, mobile phone number, employee number, and ID card number. The administrator account format is employee number + name.

[0075] The transmission system uses the same IP address for data transmission, which is used by the administrator to transmit data. The data content is projected onto the platform 6 through the projector 4, and an administrator login module is set up to verify the administrator's identity.

[0076] Methods for using the above system for stamping, such as Figure 7 As shown, it includes the following steps:

[0077] Step 1: First, enter the administrator's identity information through the management platform to confirm the administrator account;

[0078] Step 2: The system acquires an image of the iris in the human eye by controlling the start-stop system, encodes it into digital form, and stores it in the database as a start-stop condition;

[0079] Step 3: Using the start / stop conditions set in Step 2, the circuit that controls the power supply inside the casing 1 is activated. After power is supplied, the data content is projected onto the platform 6 via the projector 4 through the transmission system.

[0080] Step 4: Use camera 3 to identify and extract the content projected on platform 6 to determine the stamp area, and use stamp projection laser 5 to project the stamp onto platform 6.

[0081] Step 5: Print the stamped content using printer 2 and send it to the management platform as a document.

[0082] The present invention is compared with patent application CN109426710A, as shown in Table 1.

[0083] Table 1. Comparison of various indicators between the present invention and the prior art

[0084]

[0085] like Figure 8 As shown, the red curve represents the iris recognition-based anti-theft seal system described in this invention, and the blue curve represents the electronic iris seal described in the prior art. Figure 8 It can be seen that the false recognition rate of the iris recognition-based anti-theft seal system drops to 0% at a light intensity of 300 lux, but rises to 3.4% at 800 lux. In contrast, the false recognition rate of the electronic iris seal decreases to 1.5% at a light intensity of 500 lux, but rises to 20% at 700 lux.

[0086] These data demonstrate that the system described in this invention exhibits extremely high recognition accuracy at low light intensity, with a false recognition rate of zero, showcasing its superior performance in low-light environments. Even when the light intensity is increased to 800 lux, its false recognition rate only slightly rises to 3.4%, remaining at a low level. In contrast, the false recognition rate of existing technologies increases significantly to 20% at a light intensity of 700 lux, indicating that its performance under the same lighting conditions is inferior to that of this invention.

[0087] Combined Table 1 and Figure 8 As can be seen from this, the system described in this invention outperforms existing technologies in terms of cost, security, convenience, false recognition rate, and application scenarios, and can be widely promoted.

[0088] The above description is merely a preferred embodiment of the present invention and is not intended to further limit the present invention. All equivalent changes made based on the description and drawings of the present invention are within the protection scope of the present invention.

Claims

1. An anti-theft seal system based on iris recognition, characterized in that, The system includes a housing (1), a printer (2), a camera (3), a projector (4), a stamp projection laser (5), a platform (6), and a control system. The printer (2) is located on the top of the housing (1). The printer (2), camera (3), projector (4), and stamp projection laser (5) are respectively connected to the control system. The control system verifies the administrator's authority and controls the start and stop of the anti-theft seal system; a platform (6) for projection is provided inside the casing (1), the projector (4) is located above the platform (6) and projects onto it, the control system identifies and extracts the projected content on the platform (6) through the cameras (3) and sensors on both sides above the platform (6), the control system confirms the position of the seal area and controls the seal projection laser (5) to project the seal, and saves and prints the content after the seal is projected; The control system includes a start / stop system, an identification system, a management platform, and a transmission system. The start-stop system controls the power supply inside the casing (1) to be connected or disconnected through iris recognition technology; The identification system includes a stamp sensing module and a platform projection identification module. The stamp sensing module identifies the content projected by the platform (6) and determines the stamp area, and controls the stamp projection laser (5) to irradiate the stamp on the stamp area. The platform projection recognition module prints the projected content after the stamp and sends it to the management platform; The management platform is used to register administrator identities and store the content printed by the printer (2); The transmission system verifies the administrator's identity and projects the data content onto the platform (6) via a projector (4); The seal sensing module includes: The stamp area recognition unit is used to identify and extract the content on the platform (6) through the camera (3), and determine the stamp area and the position of the center point of the stamp area through the image processing algorithm. The projection laser control unit is used to control the stamp projection laser (5) to position the stamp projection laser above the center point of the stamp area according to the determined stamp area, and project the stamp onto the platform (6). The stamp orientation adjustment unit uses a camera and sensors to acquire images and data, and transmits the image recognition results and sensor data results to the projection laser control unit. The projection laser control unit calculates the amount of change in the stamp orientation and position that needs to be adjusted, thereby determining the direction and position of the stamp projected on the platform (6). The platform projection recognition module includes: A print recognition unit is used to organize the content of the platform (6) recognized by the camera (3); The print control unit is used to print the data organized by the print recognition unit and save it as a document to the management platform.

2. The anti-theft seal system based on iris recognition according to claim 1, characterized in that, The start / stop system includes: An iris extraction module is installed on the outer wall of the housing (1) to acquire an image of the iris in the human eye; The image feature module is used to extract identifiable features from iris images, encode them digitally, and store them on the blockchain. The data comparison module is used to compare newly collected iris features with iris data in the blockchain and determine whether to authenticate the administrator's identity based on a preset threshold. After authentication, the administrator sends control signals through the control system to control the circuit to start or stop.

3. The anti-theft seal system based on iris recognition according to claim 2, characterized in that, The management platform includes: The cloud platform is used to receive data sent by the platform's projection recognition module and store it in the database; The identity registration unit is used to enter the administrator's identity information to register an administrator account.

4. The anti-theft seal system based on iris recognition according to claim 3, characterized in that, The area illuminated by each camera (3) is 1 / 2 of the total area of ​​the platform (6), and the illuminated area corresponds to the direction of the camera (3).

5. The anti-theft seal system based on iris recognition according to claim 4, characterized in that, Using an anti-theft seal system for seal application includes the following steps: Step 1: Enter the administrator's identity information in the control system and confirm the administrator account; Step 2: Obtain an image of the administrator's iris, encode it into a digital format, and store it in the blockchain as a condition for starting and stopping the anti-theft seal system; Step 3: After the system approves the administrator's permissions, the administrator controls the anti-theft seal system to start, and the system projects the required data content onto the platform through a projector. Step 4: The control system uses a camera to identify and extract the content projected on the platform to determine the stamp area, and uses a stamp projection laser to project the stamp onto the stamp area. Step 5: Print out the content after the stamp in Step 4 and send it to the management platform for storage as a document.

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