Intelligent seal device with six-camera structure
By setting up a three-dimensional surround layout of six cameras on the smart seal device, the problem of blind spots in the monitoring of existing smart seals is solved, realizing all-round image acquisition and monitoring of the seal-using process, improving security and compliance, and making it suitable for high-security document circulation and contract signing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-31
AI Technical Summary
The existing camera layout for smart seals has blind spots, failing to effectively cover the tail and sides of the seal, which may lead to fraud or violations during the use of the seal.
Design a smart seal device with a six-camera structure, including front, left, right, rear, top, and bottom cameras, forming a three-dimensional surround monitoring layout that covers the entire seal-using environment without blind spots. The cameras are activated simultaneously to collect data natively.
It enables comprehensive image acquisition and monitoring of the stamping process, significantly improving security and transparency, reducing the risk of fraud, enhancing compliance and intelligence, and is suitable for high-security document circulation and contract signing.
Smart Images

Figure CN224068739U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to office equipment technical field, concretely relates to a kind of intelligent seal device with six camera structures. BACKGROUND
[0002] In prior art, intelligent seal is used as important tool of enterprise seal management and use, is widely used in contract signing, document processing and other scenes, to improve the security and compliance of using seal. The existing intelligent seal is usually configured with not more than three cameras, which are arranged at different parts of the seal, for realizing different forensic and verification functions. Among them, the front camera is mainly used for shooting snapshot in the process of using seal, as the evidence of using seal; The top camera is used to identify the identity of the operator, to ensure the legality of using seal authority; The bottom camera is used to collect and verify the seal, to ensure the authenticity and validity of the seal content.
[0003] However, limited by the arrangement structure of camera, the camera of existing intelligent seal is mainly distributed in front end, upper end and inside lower end of seal cover. This layout mode, while realizing basic functions, still has obvious forensic blind area, especially the tail and both sides of the seal cannot be effectively monitored. In the process of using seal, if abnormal behavior or operation occurs in these blind area regions, it will not be captured and recorded in time by the camera, and thus may cause seal fraud or other irregularities. The prior art still needs to be further optimized and improved in the whole process of using seal monitoring and security. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of intelligent seal device with six camera structures, to solve the problems existing in prior art.
[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of intelligent seal device with six camera structures, comprising:
[0006] seal body;
[0007] front camera arranged at the front end of seal body;
[0008] left camera arranged at the left side of front camera on seal body;
[0009] right camera arranged at the right side of front camera on seal body;
[0010] tail camera arranged at the tail of seal body;
[0011] Wherein, the front camera, left camera, right camera and tail camera are started simultaneously to collect the original of using seal environment.
[0012] Preferably, a downward-facing camera is also installed at the bottom of the seal body.
[0013] Preferably, a top-mounted camera is also installed on the top of the seal body.
[0014] Preferably, the tail camera is installed on the central axis of the tail of the seal body, and is located on the same axis as the front camera, arranged in a front-to-back arrangement.
[0015] Preferably, the front-facing camera is located at the center of the front face of the seal body.
[0016] Preferably, the left-side camera and the right-side camera are symmetrically arranged on the left and right sides of the front end of the seal body.
[0017] Preferably, the left and right cameras are on the same horizontal plane as the front camera.
[0018] As can be seen from the above technical solution, this utility model has the following beneficial effects:
[0019] This intelligent seal device, equipped with a six-camera structure, forms a three-dimensional, surround monitoring layout by placing a front-facing camera, a left-facing camera, a right-facing camera, a rear-facing camera, an upper-facing camera, and a lower-facing camera at the front, left, right, rear, top, and bottom of the seal body. This allows for comprehensive, blind-spot-free image acquisition and monitoring of the sealing environment, significantly improving the security and transparency of the sealing process. The cameras can be activated simultaneously to collect raw data on the environment, personnel actions, and seal impressions during the sealing process, ensuring that every detail of the sealing process can be recorded and traced back. This significantly reduces the risk of seal fraud due to blind spots in monitoring. The rear-facing camera... The front-facing camera is positioned opposite the central axis at the tail of the seal, effectively covering the blind spot at the tail. The left and right cameras are symmetrically installed on the left and right sides of the front, sharing the same horizontal plane with the front camera, ensuring monitoring coverage of the areas on both sides of the seal. This eliminates the problem of insufficient evidence collection in the side areas of traditional smart seals, effectively preventing unauthorized use of seals and illegal alteration of seal records, enhancing the compliance and intelligence level of seal management. The six-camera configuration is not only suitable for regular office seal use scenarios, but also meets the needs of important document processing such as document circulation and contract signing under high security levels, further expanding the application scope of the smart seal system. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle.
[0022] In the image: 1. Seal body; 2. Front camera; 3. Left camera; 4. Right camera; 5. Rear camera; 6. Bottom camera; 7. Top camera. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As shown in the figure, a smart seal device with a six-camera structure includes a seal body 1; a front-facing camera 2 located at the front end of the seal body 1; a left-facing camera 3 located to the left of the front-facing camera 2 on the seal body 1; a right-facing camera 4 located to the right of the front-facing camera 2 on the seal body 1; and a rear-facing camera 5 located at the rear end of the seal body 1. The front-facing camera 2, left-facing camera 3, right-facing camera 4, and rear-facing camera 5 are all activated simultaneously to natively capture the seal-using environment.
[0025] This intelligent seal device uses the seal body 1 as its structural carrier, with multiple camera modules strategically distributed across different positions on the seal body 1. A front-facing camera 2 is installed at the front of the seal body 1, responsible for capturing image information directly in front of the seal; a left-facing camera 3 is positioned to the left of the front-facing camera 2, covering the monitoring range of the left front side of the seal; a right-facing camera 4 is installed to the right of the front-facing camera 2, capturing the environment on the right front side; and a rear-facing camera 5 is positioned at the rear of the seal body 1, capturing image information of the area behind the seal. Through the coordinated operation of these four cameras, comprehensive, multi-angle video capture of the seal usage scenario can be achieved. All cameras are activated synchronously during seal use, recording the entire process in real time, ensuring transparency and traceability of the seal usage behavior and environment. The aforementioned cameras are electrically connected to an internal control module, where an embedded processor processes and stores the image data, or the data is transmitted in real time to the backend system via a wireless communication module. This intelligent seal device utilizes a multi-directional collaborative acquisition system—front-facing camera 2, left-facing camera 3, right-facing camera 4, and rear-facing camera 5—to achieve real-time monitoring and image storage of the seal-using environment. Compared to existing single or dual-camera monitoring methods, this significantly improves the comprehensiveness and security of information during the seal-using process. This design effectively prevents the risk of seal misuse, enhances the controllability and transparency of the seal-using process, and meets the regulatory needs of enterprises and institutions for compliance in seal-using behavior. Furthermore, the natively collected data possesses high legal validity and evidentiary value, providing strong support for subsequent dispute resolution or auditing.
[0026] A downward-facing camera 6 is also installed at the bottom of the seal body 1. This embodiment further optimizes the structure of the seal body 1 by adding a downward-facing camera 6 to the bottom of the seal body 1, enabling real-time acquisition of the area where the seal directly contacts the target surface. The downward-facing camera 6 mainly monitors the contact surface between the seal and the document during the stamping process, clearly recording whether the stamping action is performed according to specifications, whether the stamping position is accurate, and whether the imprint is complete. The image information acquired by the downward-facing camera 6 can help determine the legality and validity of the seal's use, preventing tampering or unauthorized use. The downward-facing camera 6 is also connected to the control module inside the seal body 1, and the acquired image data can be synchronously transmitted to the background system or stored in the local memory. Combined with the environmental acquisition information from the front camera 2, left camera 3, right camera 4, and rear camera 5, the visualization and monitoring capabilities of the entire stamping process are further enhanced. By adding a downward-facing camera 6 to the bottom of the seal body 1, this intelligent seal device achieves real-time image acquisition and recording of the stamping action, ensuring the authenticity and reliability of the stamping behavior. Compared to traditional solutions that only monitor the external environment of the seal, this implementation significantly improves the accuracy and completeness of seal usage supervision, effectively avoiding security risks such as seal forgery, illegal use of seals, and alteration of seal impressions. Furthermore, the application of the downward-facing camera 6 enhances the detail and richness of image data during seal usage, providing more detailed and reliable video data for subsequent review and evidence collection, thereby improving the intelligence and compliance level of the seal management system.
[0027] A top-mounted camera 7 is also installed on the top of the seal body 1. In this embodiment, the addition of a top-mounted camera 7 on the top of the seal body 1 further improves the all-around monitoring system of the seal device. The top-mounted camera 7 is installed above the seal body 1, capturing image information of the environment above the seal from a top-down angle, effectively covering the overall environment around the seal body 1 and the area where the operator's actions take place. This camera can record the operator's hand movements and the surrounding environment during the stamping process, ensuring that the entire stamping operation is real, transparent, and controlled. The top-mounted camera 7, together with the front camera 2, left camera 3, right camera 4, rear camera 5, and (in an optional embodiment) bottom camera 6, form a multi-angle, blind-spot-free video acquisition system. All camera data is synchronously processed through an internal control module, supporting local storage and remote transmission, ensuring data integrity and real-time performance throughout the stamping process. By configuring a top-mounted camera 7 on the top of the seal body 1, this embodiment significantly improves the panoramic coverage capability of stamping monitoring. Compared to traditional smart seals that only capture images from a horizontal or bottom perspective, this design can more comprehensively record the sealing scenario and the operator's behavior, effectively preventing unauthorized personnel from interfering with the sealing process or engaging in unauthorized activities during seal operation. The top-mounted camera 7 provides seal administrators with more comprehensive monitoring information, further enhancing seal security and the standardized management of the sealing process. Furthermore, this structural design improves the comprehensiveness and reliability of image evidence collection, providing more complete evidence for post-event tracing and dispute resolution of sealing activities.
[0028] The tail-mounted camera 5 is installed on the central axis of the tail of the seal body 1, and is located on the same axis as the front-mounted camera 2, arranged in a front-to-back orientation. In this embodiment, by installing the tail-mounted camera 5 on the central axis of the tail of the seal body 1 and keeping it on the same central axis as the front-mounted camera 2, the two are arranged in a symmetrical front-to-back structure. This axially symmetrical layout design ensures that the front-mounted camera 2 and the tail-mounted camera 5 can accurately collect environmental information in the front and rear directions of the seal body 1, ensuring the stability and directional consistency of the collected images. The precise alignment of the tail-mounted camera 5 with the central axis helps to simplify the design of the overall seal structure, optimize the internal circuit layout of the device, and improve the structural symmetry and equipment balance of the system. In addition, this symmetrical layout improves the balance of the front and rear field of view, so that the images captured by the camera can maintain a stable horizontal viewing angle during actual use, thereby improving the quality and reliability of the monitoring data. This embodiment achieves a symmetrical arrangement of the front and rear cameras by arranging the tail-mounted camera 5 and the front-mounted camera 2 on the same axis of the seal body 1, which significantly improves the stability and overall coordination of the device structure compared to the traditional dispersed camera system. This design not only optimizes the consistency of the camera's shooting angle, avoiding image distortion or framing deviation, but also simplifies the internal circuit design and modular assembly process of the seal, improving manufacturing efficiency and ease of maintenance. The symmetrical front and rear camera system helps enhance the spatial positioning capability during seal use, providing more standardized image data for subsequent image analysis and behavior recognition, thus improving the overall performance and practicality of the smart seal system.
[0029] The front-facing camera 2 is located at the center of the front face of the seal body 1. In this embodiment, the front-facing camera 2 is installed at the center of the front face of the seal body 1, placing the camera at the center of symmetry in the frontal view direction of the seal. This installation method allows the front-facing camera 2 to accurately capture and photograph the area directly in front of the seal, ensuring the centered shooting angle and image stability. This design optimizes the overall spatial layout of the seal. The central position of the front-facing camera 2 not only improves the symmetry and aesthetics of the device's appearance but also facilitates the coordinated operation of the front and rear cameras (front-facing camera 2 and rear-facing camera 5) on the same axis, further enhancing the overall coordination of the image acquisition system. The front-facing camera 2 is fixed to the central axis of the front face of the seal body 1 via a circuit board, reducing image distortion or framing errors that may be caused by installation misalignment and improving the accuracy of image acquisition. By placing the front-facing camera 2 at the center of the front face of the seal body 1, this embodiment improves the symmetry and stability of image acquisition, avoiding the shooting angle deviation problem present in traditional side-mounted cameras, thereby enhancing the video monitoring effect during the stamping process. The central placement of the front-facing camera 2 and the symmetrical arrangement of the rear-facing camera 5 combine to give the entire stamping device better structural balance and aesthetics, contributing to an optimized user experience. This design not only enhances the standardized acquisition capability of image data, providing a more standardized image foundation for subsequent video analysis and comparison, but also simplifies the design and manufacturing process of the device, reduces manufacturing costs, and improves system reliability.
[0030] Left-facing camera 3 and right-facing camera 4 are symmetrically positioned on the left and right sides of the front end of the seal body 1. In this embodiment, the left-facing camera 3 and right-facing camera 4 adopt a symmetrical installation structure, fixed on the left and right sides of the front end of the seal body 1 respectively, ensuring their symmetrical distribution relative to the central axis of the seal body 1. This symmetrical layout design allows the left-facing camera 3 and right-facing camera 4 to respectively capture environmental image information on the left and right sides in front of the seal, thus forming a multi-angle front monitoring system in conjunction with the front-facing camera 2. Through symmetrical arrangement, the left and right cameras 3 and 4 can effectively cover the left and right environmental areas when the seal is in use, providing a more complete and balanced monitoring perspective. The left-facing camera 3 and right-facing camera 4 are connected to the central control module through the internal circuitry of the seal body 1 to achieve functions such as synchronous start-up, image data acquisition and transmission, ensuring the consistency and coordination of the images acquired from the left and right perspectives. This structural design further optimizes the shooting effect and spatial layout of the seal camera system, improving the overall stability and aesthetics of the system. By symmetrically mounting the left-side camera 3 and the right-side camera 4 on the front left and right sides of the seal body 1, this embodiment significantly enhances the smart seal's multi-angle monitoring capability of the stamping environment. Compared to asymmetrical or randomly arranged camera solutions, the symmetrical structure not only contributes to the consistency and balance of the acquired image data but also optimizes the overall design and operational balance of the seal body 1, improving the user experience and operational stability during use. Furthermore, this design improves the integrity and accuracy of video data about the seal's surrounding environment, effectively preventing violations, unauthorized interference, or information obstruction during the stamping process, providing stronger technical support for the compliance of stamping activities and data retention.
[0031] The left-side camera 3 and right-side camera 4 are positioned on the same horizontal plane as the front-side camera 2. In this embodiment, the left-side camera 3, right-side camera 4, and front-side camera 2 are mounted on the same horizontal plane as the seal body 1, thus forming a unified front monitoring and acquisition plane. This structural design ensures that the lenses of the three cameras are at the same vertical height, providing a consistent visual reference for data acquisition from the left, right, and front angles. This layout not only simplifies the structural installation design of the cameras at the front of the seal body 1 but also ensures the alignment of the image acquisition angles, effectively avoiding image distortion or image stitching errors caused by height differences. The left-side camera 3 and right-side camera 4 supplement the image information directly in front of the front-side camera 2 from the left and right sides, respectively, jointly achieving wide-angle coverage and multi-angle image acquisition of the seal-using environment, thereby improving the overall monitoring range and image quality. All cameras are connected to the control module through internal circuitry to ensure synchronous transmission and processing of the acquired data. By arranging the left-side camera 3, right-side camera 4, and front-side camera 2 on the same horizontal plane, this embodiment effectively improves the spatial layout standardization of the camera system and the overall coordination of image acquisition. This design optimizes the structural uniformity of the video surveillance system for the stamp-using environment, ensuring horizontal consistency and wide-angle coverage of the forward-facing monitoring images. Compared to traditional camera arrangements with inconsistent heights, this solution reduces image stitching deviations and improves the coherence and accuracy of image data. Furthermore, this design simplifies the component design and assembly process of the stamp body 1's front end, improving manufacturing efficiency and enhancing product consistency and reliability. For users, the overall system offers a more stable and efficient operating experience, contributing to a comprehensive improvement in the security and controllability of the stamp-using process.
[0032] Working Process: Before affixing the seal, the front-facing camera 2 collects the data file to be stamped, capturing each page of the file and comparing it with each page of the submitted WORD document using OCR. If they match, proceed to the next step; otherwise, a message indicating a discrepancy is displayed, and affixing the seal is not permitted. This involves verifying the identity of the person using the seal. After successful verification, the upper-facing camera 7 captures the applicant's face and compares it with the registered applicant's face. If they match, the intelligent seal control lock is activated, allowing the seal to be pressed down and proceeding to the next step. Otherwise, a message indicating a discrepancy between the person collecting the seal and the applicant is displayed, the seal is refused, and a request for re-facial authentication is made. This involves capturing the seal's real-world environment. When the high / low position detection module detects that the seal head has pressed down to the paper, the front-facing camera 2, left-facing camera 3, right-facing camera 4, and rear-facing camera 5 are simultaneously activated to capture the seal's environment. When the high / low position detection module detects that the seal has been fully affixed and returned to its original position, the recording by the four cameras stops. Next, edge detection algorithms and image mutation detection algorithms are used to process the videos captured by the four cameras. If any abnormalities are found during the stamping process, such as image or edge changes, they are marked on the video and a warning is issued. This indicates that there may be fraudulent activities such as replacing the stamping paper, and the stamping is deemed invalid and the stamping process ends. Otherwise, proceed to the next step: verifying the actual stamping. After the original stamping environment is captured and detected, and the stamp is returned to its position, the lower camera 6 captures the original stamping imprint. The original stamping imprint is then compared with the imprints in the registered database. If the similarity meets the set requirements, the stamping is considered valid. Otherwise, an imprint mismatch is indicated, and the stamping is deemed invalid. Otherwise, proceed to the next step: auditing the stamping. If the stamping meets the requirements of "real person, real stamp, real document, real environment" and there are no fraudulent activities such as substitution during the stamping process, the stamping audit is valid. The synthesized original environment video of the stamping is stored for review and retrieval. The stamping process ends.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A smart stamp device having a six camera structure, characterized in that, The utility model relates to a kind of stamping machine, including: Stamp body (1); Front camera (2) is arranged at the front end of stamp body (1); Left camera (3) is arranged at the left side of front camera (2) on stamp body (1); Right camera (4) is arranged at the right side of front camera (2) on stamp body (1); Tail camera (5) is arranged at the tail of stamp body (1); Wherein, the front camera (2), left camera (3), right camera (4) and tail camera (5) are simultaneously started for original collection to the environment of stamping. 2.The smart stamp device with six camera structure according to claim 1, characterized in that: The bottom of the stamp body (1) is also provided with a lower camera (6). 3.The smart stamp device with six camera structure according to claim 1, characterized in that: The top of the stamp body (1) is also provided with an upper camera (7). 4.The smart stamp device with six camera structure according to claim 1, characterized in that: The tail camera (5) is installed on the central axis of the tail of the stamp body (1), and is located on the same axis as the front camera (2), arranged oppositely front and back. 5.The smart stamp device with six camera structure according to claim 1, characterized in that: The front camera (2) is located at the center of the front end face of the stamp body (1). 6.The smart stamp device with six camera structure according to claim 1, characterized in that: The left camera (3) and the right camera (4) are symmetrically arranged on the left and right sides of the front end of the stamp body (1). 7.The smart stamp device with six camera structure according to claim 1, characterized in that: The left camera (3) and the right camera (4) are respectively located in the same horizontal plane as the front camera (2).