A passport verification stamp authenticity discrimination device

Abstract

The utility model provides a passport's check chapter true and false discrimination device, including box body, entry camera, information processing chip, communication device, the transparent window of box body bottom provides the unobstructed shooting passageway for entry camera, the intuitive feedback detection result, upper connecting piece can assemble three -axis moving platform, handle accessory as needed, adapt fixed counter and outdoor temporary verification etc. many scenes, entry camera is built -in and is aligned to the transparent window, ensures complete collection check chapter characteristic image, information processing chip can control shooting when offline, detects based on prestorage rule and drives the pilot lamp, avoids artificial experience misjudgment, communication device can link when the line display all -in -one, cloud server, realizes detailed result display and strengthens detection, safeguards offline scene practicality again, breaks through local power limit and promotes discrimination precision, gives both sides to the operation convenience and the multi -scene adaptability.

Description

Technical Field

[0001] This utility model relates to the field of document anti-counterfeiting technology, specifically to a device for verifying the authenticity of a passport stamp. Background Technology

[0002] In immigration management and related document verification scenarios, the authenticity of passport verification stamps directly relates to the legality of a person's entry and exit and is an important verification basis. Currently, the industry mainly relies on manual verification of passport verification stamps: staff directly observe the font, pattern, number, and other features of the stamp with the naked eye, and in some scenarios, they use a magnifying glass to examine specific areas.

[0003] However, this manual verification method has significant drawbacks: Firstly, the verification results are highly dependent on the staff's professional skills. If staff are not familiar with the standard features of the verification stamp (such as the font proportion of the "China Border Inspection" mark and the correspondence between entry / exit codes and port codes), misjudgments are likely to occur. Secondly, staff are prone to fatigue and decreased attention during high-intensity, long-duration verification work, further increasing the probability of misjudgments. In addition, manual verification requires manually adjusting the position of passports or magnifying glasses to align with the verification stamp, which is inefficient and difficult to adapt to high-volume entry / exit verification scenarios.

[0004] Therefore, there is a need to provide a device for verifying the authenticity of passport stamps to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention proposes a passport verification stamp authenticity verification device to solve the problems of easy misjudgment, low efficiency, lack of adaptability to offline and online scenarios, and reliance on manual operation in the prior art when manually verifying passport stamps.

[0006] The embodiments of this utility model are achieved through the following technical solutions.

[0007] In a first aspect, this utility model provides a device for verifying the authenticity of a passport stamp, comprising: The box body has a transparent window at the bottom and an indicator light on the outside of the box body for outputting test results. The upper part of the box body has a connector for detachably connecting external auxiliary components. A camera is installed inside the housing and corresponds to the transparent window to capture images of the passport stamp. A communication device is disposed within the housing, the communication device being used to communicate with external devices while the housing is connected to a wired connection; and An information processing chip is disposed inside the housing. The information processing chip is electrically connected to the recording camera, the communication device, and the indicator light. The information processing chip has pre-stored verification stamp detection rules, which are used to control the recording camera to capture images, detect images based on the pre-stored rules, and control the indicator light to display the detection results when the housing is offline.

[0008] In this utility model, the passport verification stamp authenticity detection device also includes a three-axis moving platform. The connecting part of the three-axis moving platform is detachably connected to the box body. The three-axis moving platform is used to drive the box body to move along the X, Y, and Z axes to adjust the shooting position of the recording camera.

[0009] In this invention, the passport verification stamp authenticity verification device also includes a detection camera, which is electrically connected to the information processing chip. The detection camera is used to identify the position of the verification stamp on the passport and feed it back to the information processing chip to control the three-axis moving platform to drive the box to align with the verification stamp.

[0010] In this utility model, the passport verification stamp authenticity verification device also includes an integrated display unit. The integrated display unit is connected to the housing via a communication device and is used to receive and display the detection content output by the information processing chip when the housing is connected. The detection content includes at least one of the following: full information of the verification stamp and error information.

[0011] In this invention, the passport verification stamp authenticity verification device also includes a cloud server. The cloud server communicates with the housing through a communication device and is used to receive the verification stamp image or extract information sent by the information processing chip when the housing is connected, perform enhanced detection, and return the detection result to the information processing chip.

[0012] In this utility model, the passport verification stamp authenticity detection device also includes a handle accessory. The handle accessory is detachably connected to the box body through a connector on the upper part of the box body, and is used for users to hold and manually adjust the position of the box body.

[0013] In this invention, the handle accessory has anti-slip texture on its surface.

[0014] In this invention, the box body is further provided with a battery compartment, which is electrically connected to the information processing chip, the recording camera, the communication device and the indicator light, and is used to supply power to the box body.

[0015] In this invention, the battery compartment is provided with a charging interface, which is exposed on the surface of the box and is used to connect an external power source to charge the battery in the battery compartment.

[0016] In this utility model, the handle accessory includes: A connecting cover, detachably connected to the connector, is provided with a storage groove on one side of its top end; and The handle body is rotatably connected to the top of the connecting cover via a damping pivot, and the shape of the storage groove is adapted to the contour of the handle body; When the handle body is in the retracted state, the handle body is fully embedded in the retracted groove and flush with the top surface of the connecting cover.

[0017] This utility model provides a passport verification stamp authenticity verification device, including a housing, a camera, an information processing chip, and a communication device. A transparent window at the bottom of the housing provides an unobstructed shooting channel for the camera, protecting the lens from impurities and ensuring image clarity. An indicator light on the outside of the housing provides intuitive feedback on the detection results. Connectors can be fitted with a three-axis moving platform and handle accessories as needed, adapting to various scenarios such as fixed counters and temporary outdoor verification. The built-in camera is aligned with the transparent window to ensure complete acquisition of the verification stamp's feature images. When offline, the information processing chip can control shooting, detect based on pre-stored rules, and drive the indicator light, avoiding misjudgments based on human experience. When connected, the communication device can link with an all-in-one display and a cloud server to achieve detailed result display and enhanced detection, ensuring practicality in offline scenarios while overcoming local computing power limitations to improve verification accuracy, and balancing ease of operation and adaptability to multiple scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A perspective view of the box structure provided by an embodiment of the present invention is shown.

[0020] Figure 2 A cross-sectional view of the box structure provided in this embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram of the connection structure between the housing and the three-axis moving platform provided in this embodiment of the present invention is shown.

[0022] Figure 4 A schematic diagram of the connection structure between the box body and the handle accessory provided in this embodiment of the present invention is shown.

[0023] Figure 5 A schematic diagram showing the storage state of the handle accessory provided in this embodiment of the present invention is shown.

[0024] Figure 6 The flowchart illustrates the operation of the passport verification stamp authenticity verification device provided by this embodiment of the present invention.

[0025] Reference numerals: 11. Box body; 111. Transparent window; 112. Indicator light; 113. Connector; 12. Recording camera; 13. Display all-in-one machine; 14. Three-axis moving platform; 141. X-axis assembly; 142. Y-axis assembly; 143. Z-axis assembly; 144. Base; 15. Detection camera; 16. Cloud server; 17. Handle accessory; 171. Connecting cover; 172. Storage groove; 173. Handle body; 174. Damping hinge. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In this utility model, unless otherwise explicitly specified or limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a transmission connection; they can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this utility model, as well as the features of different embodiments or examples.

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1 and Figure 2 This utility model proposes a passport verification stamp authenticity verification device, which includes a housing 11, a camera 12, an information processing chip, and a communication device. The housing 11 provides a stable mounting carrier for each component. The camera 12 acquires images of the verification stamp. The information processing chip undertakes core control and offline detection tasks. The communication device supports online interaction. The four components work together to ensure that the device has the basic capabilities of "acquisition-processing-feedback-interaction," breaking through the limitations of traditional manual verification that relies on the naked eye, and laying the hardware foundation for automated verification. The bottom of the housing 11 has a transparent window 111, providing an unobstructed channel for the camera 12 to capture the verification stamp, avoiding obstruction of the lens by the structure of the housing 11, ensuring that the camera 12 can accurately capture the complete image of the verification stamp, and at the same time isolating external dust and impurities from directly contacting the camera 12, reducing the imaging blur problem caused by lens contamination, and ensuring the clarity of image acquisition.

[0031] An indicator light 112 is provided on the outside of the housing 11. The indicator light 112 is used to output the detection results. In this embodiment, the indicator light 112 is used to output the detection results through different colors or flashing patterns, providing an intuitive and fast result feedback method without relying on external devices. Users can obtain the results instantly through the color of the indicator light 112 (such as green "true" and red "false") or the flashing status (such as red flashing "detection abnormal"), which is especially suitable for offline and mobile verification scenarios and improves the convenience of operation.

[0032] The upper part of the box 11 is provided with a connector 113, which is used for detachable connection of external auxiliary components. Through the connector 113, auxiliary components such as the three-axis moving platform 14 and handle accessories 17 can be assembled as needed, which not only avoids the limitation of a single structure adapting to all scenarios, but also reduces the user's operating costs (no need to purchase multiple dedicated devices), and adapts to the needs of multiple scenarios such as fixed counters and outdoor temporary verification.

[0033] The image capture camera 12 is housed inside the housing 11 and corresponds to the transparent window 111. The camera 12 is used to capture images of the passport verification stamp. The internal placement of the camera 12 prevents damage from external impacts. The "corresponding to the transparent window 111" positioning design ensures that the camera lens is always directly facing the verification stamp, reducing image defects caused by shooting misalignment and guaranteeing the complete capture of key features such as the font, number, and pattern of the verification stamp, providing high-quality image samples for subsequent detection. An information processing chip is also housed inside the housing 11 and is electrically connected to the camera 12, the communication device, and the indicator light 112. The information processing chip pre-stores verification stamp detection rules and is used to control the camera 12 to capture images, perform image detection based on the pre-stored rules, and control the indicator light 112 to display the detection results when the housing 11 is offline. It achieves offline autonomous identification capabilities without relying on external networks or devices, and can still function normally in scenarios such as temporary outdoor verification and network outages. Simultaneously, based on pre-stored rules (such as number verification and font standards), it avoids misjudgments caused by differences in human experience, improving identification accuracy in offline scenarios. A communication device is located inside the housing 11, used to communicate with external devices when the housing 11 is connected. This communication device enables the device to link with the all-in-one display 13, cloud server 16, etc., achieving detailed display of the detected content (such as full information of the verification stamp) and leveraging cloud computing power for enhanced detection, overcoming local computing power and storage limitations, and improving identification accuracy and functional scalability in connected scenarios.

[0034] This utility model's passport verification stamp authenticity detection device uses a housing 11, a recording camera 12, an information processing chip, and a communication device as its core to collaboratively build a "collection-processing-feedback-interaction" capability, breaking through the limitations of traditional manual verification: the transparent window 111 at the bottom of the housing 11 provides an unobstructed shooting channel for the recording camera 12, isolating impurities to protect the lens and ensure image clarity; the external indicator light 112 intuitively provides feedback on the detection results through color / blinking modes; and the upper connector 113 can be equipped with a three-axis moving platform 14 and a handle accessory 1 as needed. 7. Adaptable to various scenarios such as fixed counters and temporary outdoor verification; the built-in camera 12 is aligned with the transparent window 111 to ensure complete acquisition of the verification stamp feature image; when the information processing chip is offline, it can control the shooting, detect based on pre-stored rules, and drive the indicator light 112 to avoid misjudgment by human experience; when the communication device is connected, it can link the display all-in-one machine 13 and the cloud server 16 to realize detailed result display and enhanced detection, which not only ensures the practicality of offline scenarios, but also breaks through the limitations of local computing power to improve the identification accuracy, and takes into account the ease of operation and adaptability to multiple scenarios.

[0035] The following is a detailed description of the passport verification stamp authenticity device in this embodiment: Combination Figure 3The passport verification stamp authentication device also includes a three-axis moving platform 14. The three-axis moving platform 14 is detachably connected to the housing 11 via a connector 113 on the upper part of the housing 11. The three-axis moving platform 14 is used to move the housing 11 along the X, Y, and Z axes to adjust the shooting position of the input camera 12. This automates the adjustment of the shooting position of the input camera 12, eliminating the need for manual movement of the housing 11, making it particularly suitable for high-traffic verification scenarios at fixed counters. By adjusting the horizontal position along the X and Y axes and the height along the Z axis, it ensures that the input camera 12 is always precisely aligned with the verification stamp, reducing the time and error associated with manual alignment and improving verification efficiency.

[0036] The three-axis moving platform 14 includes an X-axis assembly 141, a Y-axis assembly 142, a Z-axis assembly 143, and a connecting seat. The X-axis assembly 141 is mounted on the base 144; the Y-axis assembly 142 is located at the moving end of the X-axis assembly 141; the Z-axis assembly 143 is located at the moving end of the Y-axis assembly 142; and the connecting seat is fixed to the moving end of the Z-axis assembly 143. The bottom of the connecting seat has a mating part that matches the upper connecting piece 113 of the housing 11, and the mating part is detachably connected to the connecting piece 113. Through the hierarchical structure of "base 144, each axis assembly, and moving end," precise transmission of three-axis motion is achieved. Each axis assembly is driven independently yet works collaboratively, ensuring stable and smooth movement of the housing 11 in the X, Y, and Z axes, avoiding alignment misalignment caused by structural looseness, and ensuring the accuracy of shooting position adjustment. The three-axis moving platform 14 is securely and detachably connected to the housing 11. The "adapter mating part" ensures that there is no looseness after connection, preventing the housing 11 from shaking when the platform moves. The detachable design retains functional flexibility. When manual verification is required, the platform assembly handle accessory 17 can be removed to adapt to different usage scenarios.

[0037] The passport verification stamp authentication device also includes a detection camera 15, which is electrically connected to an information processing chip. The camera 15 identifies the position of the verification stamp on the passport and sends the data back to the chip, which then controls the three-axis moving platform 14 to align the housing 11 with the stamp. This achieves automatic identification and precise alignment of the verification stamp position, eliminating the need for manual positioning and reducing manual steps. After the detection camera 15 provides position data, the information processing chip controls the platform's movement in real time, significantly improving alignment efficiency and accuracy, especially suitable for scenarios where the verification stamp position is not fixed.

[0038] The passport verification stamp authenticity verification device also includes a display unit 13. The display unit 13 is connected to the housing 11 via a communication device. When the housing 11 is connected, it receives and displays the detection content output by the information processing chip. The detection content includes at least one of the following: full information of the verification stamp and error information. The display unit 13 provides a detailed display interface of the detection content. Compared to the simple feedback of the indicator light 112, it can display full information such as the verification stamp number, date, and port name, as well as error details such as "abnormal number of digits," facilitating staff to trace the verification basis and improving the reliability of the results and the efficiency of problem investigation.

[0039] The passport verification stamp authentication device also includes a cloud server 16. The cloud server 16 communicates with the housing 11 via a communication device. When the housing 11 is connected, it receives verification stamp images or extracts information from the information processing chip, performs enhanced detection, and returns the detection results to the information processing chip. Leveraging cloud computing power, deep authentication is achieved. The cloud can store a larger database of verification stamp features (such as styles of verification stamps from various countries' ports) and run AI recognition models, enabling it to identify subtle forgery features (such as differences in ink reflectivity) that are difficult to cover with locally stored rules, significantly improving the accuracy of identifying highly counterfeit verification stamps.

[0040] Combination Figure 4 and Figure 5 The passport verification stamp authentication device also includes a handle accessory 17, which is detachably connected to the housing 11 via a connector 113 on the upper part of the housing 11. This handle accessory 17 allows the user to grip and manually adjust the position of the housing 11. Adapting to mobile verification scenarios, the user can flexibly adjust the position of the housing 11 by gripping the handle, eliminating the need for a fixed platform. This is particularly suitable for outdoor temporary checks and on-site document verification. The detachable design ensures that it does not occupy extra space in fixed counter scenarios, balancing flexibility and practicality.

[0041] Furthermore, the handle accessory 17 has anti-slip textures on its surface. This increases the friction between the hand and the handle accessory 17, preventing the box 11 from slipping or shifting due to hand slippage. It also ensures a stable grip, especially when hands are sweaty or wet, guaranteeing operational safety and alignment accuracy during manual adjustments.

[0042] In this embodiment, the handle accessory 17 includes a connecting cover 171 and a handle body 173. The connecting cover 171 is detachably connected to the connector 113. A storage groove 172 is provided on one side of the top of the connecting cover 171. The handle body 173 is rotatably connected to the top of the connecting cover 171 via a damping pivot 174. The shape of the storage groove 172 is adapted to the contour of the handle body 173, and anti-slip textures are provided on the handle body 173. The connecting cover 171 achieves a stable connection with the box 11, while the storage groove 172 provides storage space for the handle body 173, preventing the handle from protruding and occupying space when not in use. At the same time, it protects the handle body 173 from collision damage, improving the overall portability of the passport verification stamp authenticity detection device. The damping pivot 174 enables flexible rotation and positioning of the handle body 173, allowing users to adjust the grip angle as needed; the "contour-fitting" storage groove 172 ensures that the handle body 173 can be fully embedded when stored, flush with the top surface of the connecting cover 171, preventing the protruding structure from hooking other items and improving portability.

[0043] The handle body 173 can rotate relative to the connecting cover 171 around the damping pivot 174 to two states: when the handle body 173 is in the storage state, the handle body 173 is fully embedded in the storage groove 172 and is flush with the top surface of the connecting cover 171; when the handle body 173 is in the use state, the handle body 173 forms an angle of 80°-100° with the top surface of the connecting cover 171.

[0044] In addition, the housing 11 also houses a battery compartment, which is electrically connected to the information processing chip, the recording camera 12, the communication device, and the indicator light 112 to power the housing 11. The battery compartment provides independent power supply capability, eliminating the need for an external power source, which greatly expands the application scenarios of the passport verification stamp authenticity detection device (such as outdoor environments without power); at the same time, unified power supply ensures stable voltage for all components, avoiding component failures caused by unstable power supply, and ensuring the continuous and stable operation of the passport verification stamp authenticity detection device.

[0045] Furthermore, the battery compartment is equipped with a charging port, which is exposed on the surface of the housing 11, for connecting to an external power source to charge the battery inside the compartment. This provides a convenient charging method; the exposed port allows users to connect a charger without disassembling the housing 11. The charging function ensures that the battery is reusable, avoiding the hassle and cost of frequent battery replacements, and improving the ease of use and cost-effectiveness of the passport verification stamp authentication device.

[0046] Combination Figure 6 The working principle of the passport verification stamp authenticity detection device in this embodiment is explained: I. Basic Interaction Logic of Core Components 1. Image Acquisition Triggering and Execution As the control core, the information processing chip can trigger the entry camera 12 to operate in two ways: (1) Manual triggering: when a user presses the start button on the side of the box body 11 (adapted for manual scenarios), after the chip receives the trigger signal, it sends a "shooting instruction" to the entry camera 12, controls the entry camera 12 to turn on, align with the transparent window 111 (located at the bottom of the box body 11), and shoot the image of the inspection endorsement on the passport (for example, the entry camera 12 shoots 3 frames by default, and automatically screens the 1 frame with the highest definition as the detection sample, so as to avoid misjudgment caused by blurred images).

[0047] (2) Automatic triggering: when the mechanism is equipped with a three-axis mobile platform 14, the detection camera 15 recognizes the position of the inspection endorsement and feeds it back to the information processing chip. After the information processing chip confirms that "the box body 11 has been aligned with the inspection endorsement", it automatically sends the "shooting instruction" to the entry camera 12 without manual intervention.

[0048] 2. Information Processing and Offline Detection The information processing chip pre-stores full-amount detection rules for inspection endorsements (covering key features of inspection endorsements), and after receiving the image transmitted by the entry camera 12, it executes the following steps: (1) Image preprocessing: automatically crop the inspection endorsement area in the image (remove the interference of the passport background), and optimize the image brightness and contrast (ensure clear details of characters and patterns); (2) Feature extraction: extract key information of the inspection endorsement based on the pre-stored rules, including the "China Immigration Inspection" logo (verify that the font is standard Song typeface, and the character spacing is 1.8 to 2 mm), entry / exit code + port code + inspection endorsement number (verify that the number is 4 digits, and the last check digit conforms to the rule of "modulo 10 of the sum of the first 3 digits"), entry / exit date (verify that the format is "YYYY-MM-DD", and the numbers are in standard Arial font), entry / exit port name (matches the built-in port name database, for example, "Shekou" corresponds to Shenzhen Shekou Port), entry / exit type identifier (for example, standard styles of characters "Exit" and "Entry"); (3) Rule verification: compare the extracted information with the pre-stored rules one by one. If all features conform to the rules, it is determined as "genuine"; if any feature does not match (such as wrong number of digits, abnormal date format), it is determined as "counterfeit"; if insufficient image details lead to the failure to extract key information (such as blurred inspection endorsement), it is determined as "detection abnormality".

[0049] 3. Result Feedback and Communication Interaction (1) Offline status: the information processing chip outputs results through the driving indicator light 112, for example: steady green light indicates "genuine", steady red light indicates "counterfeit", red light flashing at 1 Hz indicates "detection abnormality", and the user can obtain the result intuitively; (2) Connection status: The information processing chip interacts with external devices through a communication device (Wi-Fi / Bluetooth module): On the one hand, it sends the extracted full information of the verification stamp or error information (such as "number verification failed: the sum of the first 3 digits is 18, the verification digit should be 8 instead of 2") to the display all-in-one machine 13 for staff to view the details; on the other hand, it sends the verification stamp image or extracted feature information to the cloud server 16, requests "enhanced detection", and receives the detection results returned by the cloud (including matching degree and anti-counterfeiting mark), and then updates the indicator light 112 and the display all-in-one machine 13 simultaneously.

[0050] 4. Power Supply Guarantee Logic The battery compartment inside the housing 11 powers the core components: the built-in battery supplies power to the information processing chip, the recording camera 12, the communication device, and the indicator light 112, ensuring continuous operation in offline mode; when the battery level is below 20%, the indicator light 112 turns yellow and flashes to remind the user to charge; the user connects to the power source through the exposed Type-C charging port. During charging, the information processing chip controls the indicator light 112 to be solid blue, and it automatically switches to solid green when fully charged, intuitively indicating the charging status.

[0051] II. The mechanism in this embodiment achieves manual alignment through offline and manual methods, and is equipped with handle accessory 17. This scenario is suitable for situations without network access and requiring mobile verification (such as temporary ports of entry and outdoor inspections). Manual alignment is achieved by relying on handle accessory 17, and the core process is as follows: 1. Component assembly and preparation The user screws the connecting cover 171 (with internal threads on the inner wall) of the handle accessory 17 onto the connector 113 (external threads) on the upper part of the box body 11, and then unfolds the handle body 173 around the damping pivot 174 (to form a 90° angle with the top surface of the connecting cover 171 to fit the hand grip), confirms that the battery compartment has sufficient power (indicator light 112 is solid green), and completes the preparation.

[0052] 2. Manual positioning and shooting The user holds the handle body 173 (the surface has anti-slip texture to enhance friction and prevent the box 11 from slipping), adjusts the position of the box 11 so that the transparent window 111 at the bottom of the box 11 completely covers the passport stamp (by visually observing the alignment of the window and the passport stamp), and presses the start button after confirming the alignment. The information processing chip triggers the recording camera 12 to capture the image of the passport stamp.

[0053] 3. Offline detection and result feedback The information processing chip performs feature extraction and verification according to pre-stored rules, and obtains the detection result: if determined to be "true", indicator light 112 is solid green; if determined to be "false", indicator light 112 is solid red; if the image is blurry and causes an abnormality in detection, indicator light 112 flashes red. Users can quickly obtain the results based on the status of indicator light 112 without relying on external devices.

[0054] 4. Storage and Battery Recharge After verification, the user will rotate the handle body 173 around the damping pivot 174 into the storage groove 172 of the connecting cover 171 (fully embedded, flush with the top surface of the connecting cover 171, reducing space occupation); if the battery power is low, connect to the power source through the Type-C charging port until the indicator light 112 turns green and stays on, completing the charging process.

[0055] The mechanism in this embodiment uses wiring and automatic alignment, such as... Figure 3 As shown, the device is equipped with a three-axis mobile platform 14, an all-in-one display 13, and a cloud server 16. It is suitable for fixed verification at border inspection counters. This scenario is suitable for fixed scenarios with high traffic and requiring accurate verification (such as airport and port border inspection counters). It relies on the three-axis mobile platform 14 to achieve automatic alignment, and combines the cloud server 16 to improve detection accuracy. The core process is as follows: 1. Component assembly and network connection Disassemble handle accessory 17, and screw the connecting part 113 on the upper part of the box 11 into the mating part (external thread) of the connecting seat of the three-axis moving platform 14; connect the communication devices of the display all-in-one machine 13 and the box 11 to the same Wi-Fi network to ensure that the box 11 communicates normally with the cloud server 16 (the information processing chip sends a "connection test signal" through the communication device, and the cloud returns a "connection successful" confirmation).

[0056] 2. Passport positioning and automatic alignment Staff place the passport onto the stage (with positioning slots to restrict passport movement) of the three-axis moving platform 14. After starting the device, the detection camera 15 (fixed to the platform base 144) captures an image of the passport, identifies the location of the verification stamp, and feeds back the coordinate data to the information processing chip. The chip then sends a "movement command" to the three-axis moving platform 14 based on the coordinates. The X-axis assembly 141 (located on the base 144) drives the Y-axis assembly 142 to be laterally aligned with the housing 11; The Y-axis assembly 142 (located at the moving end of the X-axis assembly 141) drives the Z-axis assembly 143 to be longitudinally aligned with the housing 11; The Z-axis assembly 143 (located at the moving end of the Y-axis assembly 142) drives the housing 11 to move vertically and adjusts the height of the housing 11 so that the distance between the recording camera 12 and the verification stamp remains clear. After alignment is completed, the information processing chip sends an "alignment successful" message to the display all-in-one machine 13, and the screen displays "waiting for detection".

[0057] 3. Image acquisition and bidirectional detection The information processing chip automatically triggers the camera 12 to capture the image of the verification stamp, simultaneously performing two checks: (1) Offline preliminary detection: Complete the verification according to the pre-stored rules, and send the "preliminary result" (such as "preliminary judgment is true") to the display all-in-one machine 13 within 1 second for the staff to make a preliminary reference; (2) Enhanced detection in the cloud: The image of the verification stamp is sent to the cloud server 16 through the communication device. The cloud calls the port feature database to compare the ink reflectivity and fine texture of the verification stamp (such as the outer ring texture density of 50 lines / inch). Then, the "enhanced detection result" (including the matching degree, such as "99.5%, confirmed to be genuine") and the suspicious points are marked (if it is a fake stamp, it is marked "date font abnormal" and "number prefix error").

[0058] 4. Results Display and Equipment Reset After receiving the results from the cloud, the information processing chip synchronously updates the indicator light 112 and the display all-in-one machine 13: the indicator light 112 is solid green (true) or solid red (false), and the display all-in-one machine 13 fully displays the complete information of the verification stamp (including port name, date, and number) and the cloud inspection report; after the staff confirms the results, the information processing chip controls the three-axis moving platform 14 to reset, waiting for the next verification.

[0059] This completes the process of the passport verification stamp authentication agency in this preferred embodiment.

[0060] Our organization operates on the core objective of "automation replacing manual labor." By integrating "image acquisition, feature verification, and result feedback" functions through an information processing chip, we solve the problems of "easy misjudgment and low efficiency" in traditional manual verification. At the same time, through the design of "offline / online dual mode" and "manual / automatic dual alignment," we adapt to different usage scenarios, balancing flexibility and accuracy, and ultimately achieve efficient and standardized verification of the authenticity of the verification stamp.

[0061] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A device for verifying the authenticity of a passport stamp, characterized in that, include: The box body has a transparent window at the bottom and an indicator light on the outside of the box body for outputting test results. The box body also has a connector for detachably connecting external auxiliary components. A camera is installed inside the box and corresponds to the transparent window to capture images of the passport stamp. A communication device is disposed inside the housing, and the communication device is used to communicate with external devices when the housing is connected to a wired state. as well as An information processing chip is disposed inside the housing. The information processing chip is electrically connected to the recording camera, the communication device, and the indicator light. The information processing chip has pre-stored verification stamp detection rules, which are used to control the recording camera to capture images, detect images based on the pre-stored rules, and control the indicator light to display the detection results when the housing is offline.

2. The passport verification stamp authenticity detection device according to claim 1, characterized in that, The passport verification stamp authenticity detection device also includes a three-axis moving platform, which is detachably connected to the box body via the connector. The three-axis moving platform is used to drive the box body to move along the X, Y, and Z axes to adjust the shooting position of the recording camera.

3. The passport verification stamp authenticity detection device according to claim 2, characterized in that, The passport verification stamp authenticity verification device also includes a detection camera, which is electrically connected to the information processing chip. The detection camera is used to identify the position of the verification stamp on the passport and feed it back to the information processing chip to control the three-axis moving platform drive box to align with the verification stamp.

4. The passport verification stamp authenticity detection device according to claim 1, characterized in that, The passport verification stamp authenticity verification device also includes an all-in-one display unit, which is connected to the housing via the communication device. The all-in-one display unit is used to receive and display the detection content output by the information processing chip when the housing is connected to the network. The detection content includes at least one of the following: full information of the verification stamp and error information.

5. The passport verification stamp authenticity detection device according to claim 1, characterized in that, The passport verification stamp authenticity verification device also includes a cloud server. The cloud server communicates with the housing through the communication device and is used to receive the verification stamp image or extract information sent by the information processing chip when the housing is connected, perform enhanced detection, and return the detection result to the information processing chip.

6. The passport verification stamp authenticity detection device according to claim 1, characterized in that, The passport verification stamp authenticity detection device also includes a handle accessory, which is detachably connected to the box body via the connector, for users to hold and manually adjust the position of the box body.

7. The passport verification stamp authenticity detection device according to claim 6, characterized in that, The handle accessory has an anti-slip texture on its surface.

8. The passport verification stamp authenticity detection device according to claim 1, characterized in that, The box also has a battery compartment inside, which is electrically connected to the information processing chip, the recording camera, the communication device and the indicator light. The battery compartment is used to supply power to the box.

9. The passport verification stamp authenticity detection device according to claim 8, characterized in that, The battery compartment is equipped with a charging interface, which is exposed on the surface of the box and is used to connect an external power source to charge the battery inside the battery compartment.

10. The passport verification stamp authenticity detection device according to claim 6, characterized in that, The handle accessories include: A connecting cover, detachably connected to the connector, is provided with a storage groove on one side of its top end; and The handle body is rotatably connected to the top of the connecting cover via a damping pivot, and the shape of the storage groove is adapted to the contour of the handle body; When the handle body is in the retracted state, the handle body is completely embedded in the retracted groove and is flush with the top surface of the connecting cover.

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