Seal management terminal peripheral panoramic image in-situ acquisition device and use method

Abstract

The application discloses a kind of stamp management terminal peripheral panoramic image in situ acquisition device and use method, including shell, trigger mechanism is provided at the top of shell, driving mechanism is provided in shell, stamp is installed on driving mechanism, when using, driving mechanism drives stamp to move and seals document for stamping, shell is also provided with identification mechanism for verifying the identity of user and multiple cameras for image acquisition when stamping, shell is set to the curved surface shape that can make each camera complete shell bottom area image acquisition.It has the advantages of improving efficiency and supervision integrity.

Description

Technical Field

[0001] This invention relates to the field of seal equipment technology, and in particular to a device for in-situ acquisition of panoramic images of a seal management terminal and its usage method. Background Technology

[0002] Seals are stationery used to mark documents to indicate authentication or signature. They are unique, but there is a risk of them being stolen, copied, or reproduced during use. Traditional seal management models rely heavily on manual monitoring, which poses a significant risk.

[0003] Existing seal management terminals mostly have image capture capabilities for documents bearing seals, enabling them to monitor stamped documents. Examples include seal management terminals with independent image capture devices or monocular capture terminals. However, they have the following limitations:

[0004] When using a standalone image capture device, users need to move the device outside the paper area after the document is stamped and take an image with a high-speed scanner. Compared with the traditional stamping method, this design increases the stamping time per use and reduces user efficiency and experience.

[0005] When using a monocular acquisition terminal, users need to stamp the document before taking a photo. There is a time difference between taking the photo and stamping the document. Without supervision, it is difficult to ensure the consistency between the acquired image and the document to be stamped, and it is difficult to prevent the substitution or swapping of documents to be stamped. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a device for in-situ acquisition of panoramic images of the periphery of a seal management terminal that improves efficiency and provides complete supervision, as well as a method for using it.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A panoramic image acquisition device for a seal management terminal includes a housing. A trigger mechanism is located at the top of the housing, and a drive mechanism is located inside the housing. A seal is mounted on the drive mechanism. In use, the drive mechanism moves the seal to stamp documents. The housing also includes an identification mechanism for verifying the user's identity and multiple cameras for image acquisition during stamping. The housing is configured with a curved surface shape that allows each camera to fully capture images of the bottom area of ​​the housing. The side surface of the housing is formed by rotating a spatial straight line FC around a central axis, and the side surface of the housing satisfies the following equation:

[0009] ;

[0010] In the formula, a right-handed coordinate system is used. zThe axis coincides with the rotation axis of the housing; origin o Set at z At the intersection of the optical axis and the bottom surface of the housing; the projection of the camera's optical axis onto the bottom surface of the housing is set as follows: x Axis; camera focus set to F, which is the same as... z axial distance is r , and xoy Planar distance is h Point C is the intersection of the vertical field-of-view boundary lines of two adjacent cameras;

[0011] The cameras are evenly distributed on the upper part of the housing, and the maximum diameter of the bottom of the housing is set to D max To ensure that the field of view of each camera can completely cover the outer boundary of the area where the printed document is covered by the housing, the aforementioned D max The following relationship must be satisfied:

[0012] ;

[0013] in, α V For the vertical field of view of camera (6), θ The pitch angle of the camera (6), n The number of cameras (6).

[0014] As a further improvement to the above solution:

[0015] The minimum curved surface diameter of the shell is set as D min To accommodate internal component dimensions and minimum surface diameter D min Appeared z The place, the place D min , z They respectively satisfy the following relations:

[0016]

[0017] .

[0018] The diameter of the field of view envelope circle of each of the cameras is set as D C To ensure that a complete image of the printed document can be captured and stitched together from any orientation, the aforementioned D C The following relationship must be satisfied:

[0019] .

[0020] The driving mechanism includes a drive motor, a transmission assembly, and an inner support. The drive motor is fixedly mounted on the inner support, which is fixedly connected to the housing. The transmission assembly is slidably connected to the inner support, and the stamp is connected to the transmission assembly. The drive motor drives the transmission assembly to slide along the inner support of the inner housing and causes the stamp to flip.

[0021] The transmission assembly includes a U-shaped frame, a threaded sleeve, and a rotating disk. The stamp is fixedly connected to the rotating disk. The U-shaped frame is slidably mounted on the outer side of the inner support. The threaded sleeve is fixedly mounted on the U-shaped frame and threadedly connected to the lead screw of the drive motor. The U-shaped frame has a clearance groove. The inner support has a sliding groove. A rotating shaft is provided on the inner side of the inner support. The rotating disk has lifting lugs at both ends. The two lifting lugs have movable grooves. A pin is provided at the bottom of the lifting lugs. The movable groove is slidably connected to the rotating shaft, and the pin is placed in the sliding groove and slidably connected to the clearance groove. When the lead screw of the drive motor rotates, it drives the U-shaped frame to move up and down along the outer wall of the inner support. At the same time, the pin follows the U-shaped frame to move up and down along the sliding groove and drives the movable groove to rotate around the rotating shaft.

[0022] The identification mechanism includes a fingerprint recognition module and a face recognition module. The fingerprint recognition module is disposed on one outer surface of the upper part of the housing, and the face recognition module is disposed on the other outer surface of the upper part of the housing.

[0023] The triggering mechanism is set as a touch screen, and touch sensor strips are provided on both sides of the lower part of the housing to sense the user's grip status and provide prompts through the touch screen.

[0024] A method for using a panoramic image in-situ acquisition device for a seal management terminal includes the following steps:

[0025] S1: The person using the seal verifies their identity through the fingerprint recognition module and the facial recognition module;

[0026] S2: The user correctly holds the terminal device by following the prompts on the touch sensor strip and the touch screen display.

[0027] S3: The user activates the drive mechanism via the touchscreen display;

[0028] S4: The drive mechanism rotates the stamp downwards to stamp the document, while the cameras capture images at the same time.

[0029] S5: After the stamping is completed, the drive mechanism drives the stamp to flip upward and return to its original position. The terminal system then corrects and stitches the images captured by the camera into a panoramic view.

[0030] S6: The terminal system compares and verifies the panoramic image with the application documents for stamping.

[0031] Compared with the prior art, the advantages of the present invention are as follows:

[0032] This invention reduces the time required for each stamping process and improves efficiency by setting multiple cameras on the stamp management terminal to capture images of the documents being stamped. Furthermore, the curved housing design ensures the integrity of the images captured by the cameras, eliminating the need to hold the stamp management terminal high to take pictures of the documents. This ensures that image capture and stamping are synchronized, guaranteeing the consistency between the captured images and the documents being stamped, thus ensuring complete supervision and preventing the substitution or swapping of stamped documents. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the seal management terminal of the present invention.

[0034] Figure 2 This is a three-dimensional structural diagram (another perspective) of the seal management terminal of the present invention.

[0035] Figure 3 This is a schematic diagram of the drive mechanism structure of the seal management terminal of the present invention (stamping state).

[0036] Figure 4 This is a schematic diagram of the drive mechanism structure of the seal management terminal of the present invention (in unused state).

[0037] Figure 5 This is a schematic diagram of the flip disk structure of the seal management terminal of the present invention.

[0038] Figure 6 This is a schematic diagram of the curved surface space linear FC of the seal management terminal of the present invention.

[0039] Figure 7 This is a top view of the shell surface calculation model of the seal management terminal of the present invention.

[0040] Figure 8 This is a side view of the shell surface calculation model of the seal management terminal of the present invention.

[0041] Figure 9 This is the field-of-view envelope diagram of the camera of the seal management terminal of the present invention.

[0042] Figure 10 This is an image captured by the seal management terminal of the present invention.

[0043] Figure 11 It is an image captured by a traditional seal terminal.

[0044] Figure 12 This is a flowchart of the usage of the seal management terminal of the present invention.

[0045] The labels in the diagram represent:

[0046] 1. Housing; 11. Touch sensor strip; 2. Trigger mechanism; 3. Drive mechanism; 31. Drive motor; 32. Transmission assembly; 321. U-shaped frame; 3211. Clearance groove; 322. Threaded sleeve; 323. Flip disc; 3231. Lifting lug; 32311. Pin; 32312. Movable groove; 33. Inner support; 331. Slide groove; 332. Rotating shaft; 4. Seal; 5. Recognition mechanism; 51. Fingerprint recognition module; 52. Face recognition module; 6. Camera; 7. Ink cartridge. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] As shown in Figure 1 Figure 5 As shown, the panoramic image in-situ acquisition device for the seal management terminal in this embodiment includes a housing 1. A triggering mechanism 2 is provided on the top of the housing 1, and a driving mechanism 3 is provided inside the housing 1. A seal 4 is installed on the driving mechanism 3. In use, the driving mechanism 3 moves the seal 4 to stamp the document. The housing 1 is also provided with an identification mechanism 5 for verifying the user's identity and multiple cameras 6 for capturing images during stamping. The housing 1 is designed with a curved surface shape that allows each camera 6 to completely capture images of the bottom area of ​​the housing 1. This invention reduces the time required for each stamping by setting multiple cameras 6 on the seal management terminal to capture images of the document during stamping, thus improving efficiency. Furthermore, the curved design of the housing 1 ensures the integrity of the image capture of the document by the cameras 6, eliminating the need to hold the seal management terminal high to take pictures of the document. This ensures that image capture and stamping are synchronized, ensuring the consistency between the captured image and the document, and preventing the substitution or swapping of documents.

[0049] In this embodiment, the driving mechanism 3 includes a drive motor 31, a transmission assembly 32, and an inner support 33. The drive motor 31 is fixedly mounted on the inner support 33, which is fixedly connected inside the housing 1. The transmission assembly 32 is slidably connected to the inner support 33, and the stamp 4 is connected to the transmission assembly 32. The drive motor 31 drives the transmission assembly 32 to slide along the inner support 33 and rotates the stamp 4. The transmission assembly 32 includes a U-shaped frame 321, a threaded sleeve 322, and a rotating disk 323. The stamp 4 is fixedly connected to the rotating disk 323. The U-shaped frame 321 is slidably mounted on the outside of the inner support 33. The threaded sleeve 322 is fixedly mounted on the U-shaped frame 321 and threadedly connected to the lead screw of the drive motor 31. An clearance groove 3211 is provided, a sliding groove 331 is provided on the inner support 33, a rotating shaft 332 is provided on the inner side of the inner support 33, and lifting lugs 3231 are provided at both ends of the flip plate 323. A movable groove 32312 is provided on the two lifting lugs 3231, and a pin 32311 is provided at the bottom of the lifting lug 3231. The movable groove 32312 is slidably connected to the rotating shaft 332, and the pin 32311 is placed in the sliding groove 331 and slidably connected to the clearance groove 3211. When the lead screw of the drive motor 31 rotates, it drives the U-shaped frame 321 to move up and down along the outer wall of the inner support 33. At the same time, the pin 32311 follows the U-shaped frame 321 to move up and down along the sliding groove 331 and drives the movable groove 32312 to rotate around the rotating shaft 332. In this structure, the movable groove 32312 and pin 32311 on the flip plate 323 enable the U-shaped frame 321 to drive the stamp 4 on the flip plate 323 to complete the flipping action while moving vertically. The structure is compact and the motion trajectory is controllable.

[0050] In this embodiment, the identification mechanism 5 includes a fingerprint recognition module 51 and a face recognition module 52. The fingerprint recognition module 51 is disposed on one outer surface of the upper part of the housing 1, and the face recognition module 52 is disposed on the other outer surface of the upper part of the housing 1. This structure combines fingerprint recognition and face recognition to improve the security and reliability of the identification of the user.

[0051] In this embodiment, the triggering mechanism 2 is set as a touch screen, and touch sensing strips 11 are provided on both sides of the lower part of the housing 1 to sense the user's grip and provide prompts through the touch screen. In this structure, when the user grips the housing 1 below the camera 6, they will touch the touch sensing strips 11, causing the camera 6 to be blocked. At this time, the device will stop the stamping process and provide a prompt to the user on the touch screen.

[0052] In this embodiment, an ink cartridge 7 is also provided inside the housing 1. This structure extends the number of printing cycles provided by the internal ink cartridge 7.

[0053] In this embodiment, as Figures 6 to 9 As shown, establish a coordinate system, with the horizontal field of view of camera 6 as... α HThe vertical field of view is α V The tilt angle of camera 6 is... θ The optical axis of the camera intersects the z-axis at... o′ Camera 6 focus set F Its distance z axial distance is r ,distance xoy Planar distance is h Therefore, its coordinates are F ( r ,0, h ); Camera 6 optical axis and xoy planes intersect at point F′ ; camera 6 vertical field of view boundary and x The axes intersect at point D、D′ ; Camera 6 field of view boundary and xoy planes intersect at point ABB′A′ area, AA′ ∥ BB′ And all are perpendicular to x Axis; at point F and intersecting with xoy On a plane parallel to the plane, along a radius of r Circumferentially evenly distributed n Six cameras capture images of the exterior of the casing. AA′ The innermost field-of-view boundary line of a single camera 6 is defined as follows: when the intersection of the innermost field-of-view boundary lines of two adjacent cameras 6 is located on the bottom edge of the housing 1, their field of view can completely cover the bottom edge of the housing 1. D max The method for determining is: AA′ Rotate 2 π / n Later and AA′ Intersect at point C ,but OC That is, the maximum diameter of the bottom of shell 1. D max The calculation process is as follows:

[0054] For a straight line FD Passing through fixed points F ( r ,0, h ),exist xoz In a plane, its slope can be written as:

[0055] ;

[0056] Therefore, the straight line FD The equation is:

[0057] ;

[0058] Pickz Substituting 0 into the line... FD The equation can be obtained D The coordinates of the point are: ;

[0059] xoy Straight lines in a plane AA′ The equation is:

[0060] ;

[0061] Consider the straight line AA′ Rotate counterclockwise 2 π / n Then, through coordinate rotation transformation, we have:

[0062] ;

[0063] Eliminate the above formula y′ Later can be obtained AA′ Rotate 2 π / n Later xoz Equations in the plane:

[0064] ;

[0065] Pick AA′ equation Substituting into the above equation, we can obtain their intersection point. C The coordinates are:

[0066] ;

[0067] This allows us to determine the maximum diameter of the bottom of shell 1. OC for:

[0068] ;

[0069] The curved surface of housing 1 must satisfy the requirement that the bottom edge of the field of view can be captured by a single camera 6. C Therefore, for this purpose, a 6-focus camera is connected. F and C A point, which is a straight line in space, at this time C The light rays emitted from a point travel along a straight line. CF The image propagates along the shell 1 and is captured by camera 6. When camera 6 maintains a constant pitch angle, it is located at a radius of... r， Pass F Point and parallel to xo When it is on a circle in the y-plane, the above... C All points are visible, therefore the line... CF Around z The surface obtained by rotating the axis 360° is the optimal surface to ensure the integrity of the bottom circle of shell 1.

[0070] The surface constructed in the above manner is a hyperboloid of one sheet. C ( x C , y C ,0), ( r， 0, h The line connecting two points is formed by rotating it around the z-axis; it is a straight line. CF The direction vector is n ( r-x C , - y C , h The parametric equations can be described as follows:

[0071] ;

[0072] straight line CF Because of the rotation about the z-axis, for any given z, a point on the straight line must lie on the surface, and the distance from the z-axis must be... r z All are equal, and we also consider the above formula. t use z Represented as t = z / h To eliminate the equation t Therefore, we have:

[0073] ;

[0074] Therefore, the optimal surface equation for shell 1 is as follows:

[0075] ;

[0076] Minimum diameter of shell 1 curved surface D min This determines the maximum size of the components that can be accommodated within the shell, when the curved surface of shell 1 reaches its minimum diameter. D min hour, x 2 +y 2 It also reaches its minimum, and the above surface equations are rearranged as follows: x 2 +y 2 about z Quadratic functions include:

[0077] ;

[0078] When the derivative of the above equation is 0 x2 +y 2 Minimum value can be reached:

[0079] ;

[0080] At this point, the minimum diameter of the shell surface 1 can be obtained. D min time z The value can be substituted back into the surface equation to obtain the corresponding value. D min expression:

[0081] ;

[0082] Because the user is using the top of housing 1 n When each of the six cameras is used to capture panoramic images, it is not used according to a specific device orientation. Therefore, to ensure that a complete image can be captured and stitched together from any orientation of each of the six cameras, the intersection point of the left and right boundaries of the field of view of two adjacent cameras along the line of sight is taken. G As the boundary of the envelope circle of the camera's 6-field-of-view, its radius is D C， As long as the subject is within the field of view envelope, the panoramic image can be fully captured regardless of the orientation of the camera.

[0083] x F′ =x E = OF = r + FF ′= r + h ·tan θ , FF ′= h ·sec θ In the cone F - ABB ′ A In ′, Rt△ FF ′ E The horizontal field of view of the camera α H The angle bisector of the right triangle, which satisfies the condition of right triangle. FF ′ E ⊥△ FAB ; in Rt△ FF ′ E middle, y E = FE=FF ′·(tan α H / 2)= h·sec θ ·tan (tan) α H / 2);

[0084] For three non-collinear points in space ( x 1, y 1, z 1) ( x 2, y 2, z 2), ( x 3, y 3, z 3) For a given plane, its normal vector n It can be written as:

[0085] ;

[0086] Therefore, for right triangle FF′E, the coordinates of its three vertices are known:

[0087] F ( r ,0, h ), F ′( r + h ·tan θ ,0,0) and E ( r + h ·tan θ , h ·sec θ ·tan(( α H / 2), 0), according to the above formula, its plane normal vector can be calculated as:

[0088] ;

[0089] Because of Rt△ FF ′ E ⊥△ FAB , △ FAB Passing point F ( r ,0, h ), E ( r + h ·tan θ , h ·sec θ ·tan(( α H / 2), 0), can be used to calculate △ FAB The normal vector is:

[0090] ;

[0091] △ FAB Passing Point F ( r ,0, h Using the point-normal form equation, △ FAB Written as:

[0092] ;

[0093] △ FAB In the equation z Setting it to 0 yields the straight line on the left boundary along the line of sight. AB The equation:

[0094] ;

[0095] And the right boundary line A′B′ With a straight line AB about x It is axially symmetric, and its equation is:

[0096] ;

[0097] Intersection of adjacent viewpoints G Straight lines A′B′ Rotate counterclockwise 2 π / n After and the straight line AB It is formed by intersection. A straight line. A′B′ Rotate counterclockwise 2 π / n After coordinate rotation transformation, its equation can be obtained as follows:

[0098] ;

[0099] Through a straight line A′B′ With a straight line AB The intersection point can be obtained by solving the equations simultaneously. G coordinate( x G , y G )for:

[0100] ;

[0101] Therefore, the diameter of the camera's 6-field-of-view envelope circle D C for:

[0102] .

[0103] The specific values ​​in this embodiment are as follows:

[0104]

[0105] Based on the parameters given above, the specific values ​​of the housing 1 in this embodiment are as follows:

[0106] Maximum diameter at the bottom of shell 1: D max =82.5782mm;

[0107] Surface equation: F ( x , y , z )= x 2 + y 2 -(20.6445+0.2165 z ) 2 -(35.7574-0.2220 z ) 2 =0;

[0108] Minimum diameter of the curved surface of shell 1: D min =79.4881mm;

[0109] Camera field of view envelope diameter: D C =415.8421mm;

[0110] Image acquisition is performed on the shell 1 manufactured using the above parameters. Figure 10 As shown, image acquisition is performed using the casing of a traditional seal terminal. Figure 11 As shown in the comparison, the image contour of the terminal in this embodiment located at the bottom edge of the housing 1 is smooth and there is no loss of document information. However, the image of the traditional seal terminal has sharp corners at the splicing point, and the bottom contour is not smooth. Document information is also lost in the sharp corners.

[0111] like Figure 12 As shown, the method of using the in-situ panoramic image acquisition device for the seal management terminal of the present invention includes the following steps:

[0112] S1: The person using the seal verifies their identity through the fingerprint recognition module 51 and the facial recognition module 52;

[0113] S2: The user correctly holds the terminal device by following the prompts on the touch sensor strip 11 and the touch screen display.

[0114] S3: The user activates the drive mechanism 3 via the touch screen;

[0115] S4: The drive mechanism 3 drives the seal 4 to flip downwards to stamp the document to be stamped, while each camera 6 captures images.

[0116] S5: After the stamping is completed, the drive mechanism 3 drives the stamp 4 to flip upward and return to its original position. The terminal system corrects and stitches the image captured by the camera 6 in a panoramic view.

[0117] S6: The terminal system compares and verifies the panoramic image with the application documents for stamping.

[0118] This method uses the aforementioned in-situ panoramic image acquisition device for the periphery of the seal management terminal, which can acquire panoramic images of the periphery of the terminal in situ, ensuring the integrity of the supervision of the stamping process and realizing unmanned supervision of seal usage.

[0119] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A device for in-situ acquisition of panoramic images surrounding a seal management terminal, characterized in that: The device includes a housing (1), a triggering mechanism (2) on the top of the housing (1), a driving mechanism (3) inside the housing (1), and a stamp (4) mounted on the driving mechanism (3). When in use, the driving mechanism (3) moves the stamp (4) to stamp the document. The housing (1) is also equipped with an identification mechanism (5) for verifying the user's identity and multiple cameras (6) for capturing images during stamping. The housing (1) is configured with a curved surface shape that allows each camera (6) to capture images of the bottom area of ​​the housing (1) completely. The side surface of the housing (1) is formed by rotating a spatial straight line FC around a central axis. The side surface of the housing (1) satisfies the following equation: ， In the formula, a right-handed coordinate system is used. z The shaft and the housing (1) rotate around the same axis; origin o Set at z The point where the shaft intersects with the bottom surface of the housing (1); the projection of the optical axis of the camera (6) onto the bottom surface of the housing (1) is set as x axis; The focus of the camera (6) is set to F, which is the same as... z axial distance is r , and xoy Planar distance is h Point C is the intersection of the vertical field of view boundary lines of two adjacent cameras (6); Each of the cameras (6) is evenly distributed on the upper part of the housing (1), and the maximum diameter of the bottom of the housing (1) is set to D max To ensure that the field of view of each camera (6) can completely cover the outer boundary of the part of the housing (1) used for covering printed documents, the D max The following relationship must be satisfied: ， in, α V For the vertical field of view of camera (6), θ The pitch angle of the camera (6), n The number of cameras (6).

2. The in-situ panoramic image acquisition device for the seal management terminal according to claim 1, characterized in that: The minimum surface diameter of the shell (1) is set as D min To accommodate internal component dimensions and minimum surface diameter D min Appeared z The place, the place D min , z They respectively satisfy the following relations: 。 3. The in-situ panoramic image acquisition device for the seal management terminal according to claim 2, characterized in that: The field-of-view envelope diameter of each of the cameras (6) is set to D C To ensure that a complete image of the printed document can be captured and stitched together from any orientation, the aforementioned D C The following relationship must be satisfied: 。 4. The in-situ panoramic image acquisition device for the seal management terminal according to claim 3, characterized in that: The drive mechanism (3) includes a drive motor (31), a transmission assembly (32), and an inner support (33). The drive motor (31) is fixed on the inner support (33), which is fixed inside the housing (1). The transmission assembly (32) is slidably connected to the inner support (33), and the stamp (4) is connected to the transmission assembly (32). The drive motor (31) drives the transmission assembly (32) to slide along the inner support (33) of the inner housing and causes the stamp (4) to flip.

5. The in-situ panoramic image acquisition device for the seal management terminal according to claim 4, characterized in that: The transmission assembly (32) includes a U-shaped frame (321), a threaded sleeve (322), and a rotating disk (323). The stamp (4) is fixedly connected to the rotating disk (323). The U-shaped frame (321) is slidably mounted on the outside of the inner support (33). The threaded sleeve (322) is fixedly mounted on the U-shaped frame (321) and threadedly connected to the lead screw of the drive motor (31). The U-shaped frame (321) is provided with a clearance groove (3211). The inner support (33) is provided with a sliding groove (331). The inner side of the inner support (33) is provided with a rotating shaft (332). The rotating disk (323) is provided with lifting lugs (3231) at both ends. The two lifting lugs (3231) are provided with movable grooves (32312), and the bottom of the lifting lugs (3231) is provided with pins (32311). The movable grooves (32312) are slidably connected to the rotating shaft (332), and the pins (32311) are placed in the sliding groove (331) and slidably connected to the clearance groove (3211). When the lead screw of the drive motor (31) rotates, it drives the U-shaped frame (321) to move up and down along the outer wall of the inner support (33). At the same time, the pins (32311) follow the U-shaped frame (321) to move up and down along the sliding groove (331) and drive the movable grooves (32312) to rotate around the rotating shaft (332).

6. The in-situ panoramic image acquisition device for the seal management terminal according to claim 5, characterized in that: The identification mechanism (5) includes a fingerprint recognition module (51) and a face recognition module (52). The fingerprint recognition module (51) is disposed on the outer surface of one side of the upper part of the housing (1), and the face recognition module (52) is disposed on the outer surface of the other side of the upper part of the housing (1).

7. The in-situ panoramic image acquisition device for the seal management terminal according to claim 6, characterized in that: The triggering mechanism (2) is set as a touch screen, and the lower two sides of the housing (1) are provided with touch sensing strips (11) that can sense the grip state of the user and provide prompts through the touch screen.

8. A method of using the in-situ panoramic image acquisition device for a seal management terminal based on any one of claims 1 to 7, characterized in that: Includes the following steps: S1: The person using the seal verifies their identity through the fingerprint recognition module (51) and the face recognition module (52); S2: The user correctly holds the terminal device by touching the sensor strip (11) and following the prompts on the touch screen; S3: The person using the seal starts the drive mechanism (3) via the touch screen. S4: The drive mechanism (3) drives the seal (4) to flip downwards to stamp the document to be stamped, while each camera (6) captures images. S5: After the stamping is completed, the drive mechanism (3) drives the stamp (4) to flip upward and return to its original position. The terminal system corrects and stitches the images captured by the camera (6). S6: The terminal system compares and verifies the panoramic image with the application documents for stamping.

Images