Miniature character spectrum identification anti-counterfeiting system
By combining a servo motor-driven conveyor belt and guide plate with ultraviolet irradiation and high-resolution camera recognition technology, the problems of detection accuracy and positional deviation in the micro-text spectral recognition system during automated production have been solved, achieving efficient and reliable anti-counterfeiting recognition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENGDASHENG PRINTING & PACKAGING CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-08
AI Technical Summary
Existing microtext spectral recognition anti-counterfeiting systems are unable to meet the detection accuracy requirements in large-scale automated production scenarios, and the positional deviation of the items to be inspected leads to blind spots or misjudgments.
A servo motor drives the conveyor belt to move the anti-counterfeiting box, and the guide plate and elastic element realize the automatic centering and positioning of the box. Combined with ultraviolet light-emitting diodes illuminating the miniature characters, high-resolution images are captured by industrial and spectral cameras, and fluorescence spectrum and infrared reflection spectrum features are extracted for identification.
It improves the recognition accuracy and efficiency of anti-counterfeiting boxes, avoids interference from external light, and ensures the reliability and accuracy of detection.
Smart Images

Figure CN224208597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to anti-counterfeiting systems, and more particularly to a microtext spectral recognition anti-counterfeiting system. Background Technology
[0002] Anti-counterfeiting microprinting technology is an anti-counterfeiting technology that uses a special generation method to extremely reduce the size of specific text or patterns. Because the microprinted text or patterns cannot be detected by the naked eye under normal circumstances, the hidden information can only be revealed through specific equipment and conditions, thus effectively preventing counterfeiting and piracy.
[0003] During manual identification, staff members use handheld scanners connected to computers to scan the anti-counterfeiting boxes one by one on the conveyor belt of the production line, and then make visual judgments. This is easily affected by subjective judgment or environmental interference, making it difficult to meet the needs of large-scale automated production scenarios. In automated production lines, the positional deviation of the items to be inspected can easily lead to blind spots or misjudgments, affecting reliability.
[0004] Therefore, it is necessary to design a microtext spectral recognition anti-counterfeiting system that can improve detection accuracy. Utility Model Content
[0005] To overcome the shortcomings of manual identification, which is difficult to meet the needs of large-scale automated production scenarios, and the fact that the positional deviation of the items to be inspected in automated production lines can easily lead to blind spots or misjudgments, affecting reliability, this utility model provides a micro-text spectral recognition anti-counterfeiting system that can improve detection accuracy.
[0006] The micro-text spectral recognition anti-counterfeiting system includes a base frame, servo motor, rotating shaft, conveyor belt, inspection box, ultraviolet light-emitting diode, support plate, industrial camera, spectral camera, display panel, control box, anti-counterfeiting box, micro-characters, and a centering mechanism. A servo motor is mounted on one side of the base frame, and two rotating shafts are rotatably mounted on the base frame. The output shaft of the servo motor is connected to one of the rotating shafts via a coupling. A conveyor belt is mounted on both rotating shafts. The inspection box is mounted on the base frame, and an ultraviolet light-emitting diode is installed inside the inspection box. A spectral camera is mounted on the front side of the inspection box. A support plate is mounted on one side of the inspection box, and an industrial camera is mounted on the support plate. A display panel is mounted on the outside of the inspection box. The control box is mounted on the base frame, and the servo motor is electrically connected to the control box. The anti-counterfeiting box, with micro-characters, is placed on the conveyor belt. A centering mechanism is located on the base frame.
[0007] In a preferred embodiment of this utility model, the signal output terminals of the industrial camera and the spectral camera are both electrically connected to the signal input terminal of the control box, and the signal output terminal of the control box is electrically connected to the model input terminal of the display panel.
[0008] In a preferred embodiment of the present invention, the centering mechanism includes a support base, a guide rod, a guide plate, and an elastic element. Support bases are installed on both sides of the base frame. Two guide rods are slidably arranged on the support bases. The two guide rods are connected to the guide plate at one end inside the inspection box. Two elastic elements are connected between the support bases and the guide plate.
[0009] In a preferred embodiment of this utility model, it further includes a mounting plate, an electric push rod, and a push plate. Two mounting plates are installed on one side of the base frame, and an electric push rod is installed on the mounting plate. The output end of the electric push rod is fixedly connected to the push plate.
[0010] In a preferred embodiment of this utility model, a light-blocking curtain is also included, with light-blocking curtains installed on both sides of the inspection box.
[0011] In a preferred embodiment of this utility model, a receiving plate is also included, which is installed on one side of the base frame.
[0012] In operation, the servo motor is first started via the control box. The servo motor drives the rotating shaft to rotate, which in turn drives the conveyor belt to run at a constant speed. Then, the anti-counterfeiting box to be inspected, with the side bearing the micro-characters facing upwards, is placed on the conveyor belt. The anti-counterfeiting box moves backwards, squeezing the guide plate to slide outwards. The guide plate squeezes the elastic element, causing it to deform. This keeps the anti-counterfeiting box centered under the action of the elastic element and the guide plate, facilitating accurate identification of the micro-characters on the box. The conveyor belt moves the anti-counterfeiting box into the inspection chamber. The control box then activates the ultraviolet light-emitting diode (UV LED), and a light-blocking curtain shields the inspection chamber from external light. The ultraviolet light emitted by the tube illuminates the micro-characters on the anti-counterfeiting box. The control box activates the industrial camera and spectral camera, capturing high-resolution visible light images of the micro-characters, capturing the shape of the micro-text, collecting the fluorescence spectrum or infrared reflection spectrum under ultraviolet excitation, extracting hidden features such as ink composition and fluorescence lifetime, and transmitting them to the display panel for display, thereby realizing anti-counterfeiting identification of the anti-counterfeiting box. When the anti-counterfeiting box is conveyed to the box pusher plate by the conveyor belt, if the anti-counterfeiting box is a counterfeit, the electric push rod in the control box is activated. When the electric push rod drives the telescopic rod to push the pusher plate, the counterfeit is pushed out of the conveyor belt. If the anti-counterfeiting box is genuine, it is conveyed to the next process by the conveyor belt.
[0013] This utility model has the following advantages: the anti-counterfeiting box is transported by a servo motor-driven conveyor belt, and the anti-counterfeiting box is automatically centered and positioned under the action of the guide plate and elastic element, thereby improving the recognition accuracy and efficiency of the anti-counterfeiting box. During recognition, the light-blocking curtain blocks the light from entering the inspection box to prevent external light from entering the inspection box. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional cross-sectional view of the base frame, inspection box, and spectral camera of this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the base frame, conveyor belt, and push plate of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the support base, guide rod, and guide plate of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the inspection box and the light-blocking curtain of this utility model.
[0019] The above-mentioned attached drawings include the following reference numerals: 1. Base frame, 2. Servo motor, 3. Rotary shaft, 4. Conveyor belt, 5. Inspection box, 501. Ultraviolet light-emitting diode, 6. Support plate, 7. Industrial camera, 8. Spectrum camera, 9. Display panel, 10. Control box, 11. Anti-counterfeiting box, 12. Micro-characters, 13. Mounting plate, 14. Electric push rod, 15. Push plate, 16. Support base, 17. Guide rod, 18. Guide plate, 19. Elastic element, 20. Light-blocking curtain, 21. Receiving plate. Detailed Implementation
[0020] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.
[0021] Example: Microtext spectral recognition anti-counterfeiting system, see reference. Figures 1-5As shown, the system includes a base frame 1, a servo motor 2, a rotating shaft 3, a conveyor belt 4, an inspection box 5, an ultraviolet light-emitting diode 501, a support plate 6, an industrial camera 7, a spectral camera 8, a display panel 9, a control box 10, an anti-counterfeiting box 11, micro-characters 12, and a centrally located structure. The servo motor 2 is bolted to the front left side of the base frame 1. Two rotating shafts 3 are rotatably mounted on the base frame 1. The output shaft of the servo motor 2 is connected to the rotating shafts 3 on the front side of the base frame 1 via a coupling. A conveyor belt 4 is mounted on both rotating shafts 3. The inspection box 5 is bolted to the top of the base frame 1. Light-shielding curtains 20 are bolted to both sides of the inspection box 5. An ultraviolet light-emitting diode is bolted to the inside of the inspection box 5. The diode 501, the spectral camera 8 is installed on the front side of the inside of the inspection box 5, the support plate 6 is installed on the right side of the inside of the inspection box 5 by bolt connection, the industrial camera 7 is installed on the support plate 6 by bolt connection, the signal output terminals of the industrial camera 7 and the spectral camera 8 are electrically connected to the signal input terminal 10 of the control box, the signal output terminal of the control box 10 is electrically connected to the model input terminal of the display panel 9, the display panel 9 is installed on the right side of the outside of the inspection box 5 by bolt connection, the control box 10 is installed on the base frame 1 by bolt connection, the servo motor 2 is electrically connected to the control box 10, the anti-counterfeiting box 11 is placed on the conveyor belt 4, the anti-counterfeiting box 11 is provided with micro-characters 12, and the base frame 1 is provided with a centering mechanism.
[0022] See Figure 3 and Figure 4 As shown, the central mechanism includes a support base 16, guide rods 17, guide plates 18, and elastic elements 19. The support base 1 is installed on both the left and right sides of the front part of the base frame 1 by bolt connection. Two guide rods 17 are slidably arranged on the support base 16. The two guide rods 17 are connected to the guide plate 18 at one end inside the inspection box 5. Two elastic elements 19 are connected between the support base 16 and the guide plate 18.
[0023] See Figure 3 As shown, it also includes a mounting plate 13, an electric push rod 14, and a push plate 15. Two mounting plates 13 are installed on the rear side of the base frame 1. The electric push rod 14 is installed on the mounting plate 13 by means of bolt connection. The output end of the electric push rod 14 is fixedly connected to the push plate 15. A receiving plate 21 is installed on the rear right side of the base frame 1 by means of bolt connection. The receiving plate 21 is used to receive the anti-counterfeiting box 11 that is pushed out.
[0024] In operation, the servo motor 2 is first started via the control box 10. The servo motor 2 drives the rotating shaft 3 to rotate, which in turn drives the conveyor belt 4 to run at a constant speed. Then, the anti-counterfeiting box 11 to be inspected, with the side bearing the micro-characters 12 facing upwards, is placed on the conveyor belt 4. The anti-counterfeiting box 11 moves backwards, squeezing the guide plate 18 to slide outwards. The guide plate 18 squeezes the elastic element 19, causing it to deform. This keeps the anti-counterfeiting box 11 centered under the action of the elastic element 19 and the guide plate 18, facilitating accurate identification of the micro-characters 12 on the anti-counterfeiting box 11. The conveyor belt 4 moves the anti-counterfeiting box 11 into the inspection box 5. The control box 10 then activates the ultraviolet light-emitting diode 501, and the light-blocking curtain 20 blocks light from entering the inspection box 5. The ultraviolet light emitted by the LED 501 illuminates the micro-characters 12 on the anti-counterfeiting box 11. The control box 10 controls the industrial camera and the spectral camera 8 to start and capture a high-resolution visible light image of the micro-characters 12, capturing the shape of the micro-text, collecting the fluorescence spectrum or infrared reflection spectrum under ultraviolet excitation, extracting the ink composition, fluorescence lifetime and other hidden features, and transmitting them to the display panel 9 for display, thereby realizing the anti-counterfeiting identification of the anti-counterfeiting box 11. When the anti-counterfeiting box 11 is conveyed to the box push plate 15 by the conveyor belt 4, the anti-counterfeiting box 11 is a counterfeit. The electric push rod 14 of the control box 10 is started. When the electric push rod 14 drives the telescopic rod to push the push plate 15 to push the counterfeit out of the conveyor belt 4, the anti-counterfeiting box 11 is a genuine product and is conveyed to the next process by the conveyor belt 4.
[0025] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims
1. A microtext spectral recognition anti-counterfeiting system, characterized by: The system includes a base frame (1), a servo motor (2), a rotating shaft (3), a conveyor belt (4), an inspection box (5), an ultraviolet light-emitting diode (501), a support plate (6), an industrial camera (7), a spectral camera (8), a display panel (9), a control box (10), an anti-counterfeiting box (11), micro-characters (12), and a central structure. A servo motor (2) is mounted on one side of the base frame (1). Two rotating shafts (3) are rotatably mounted on the base frame (1). The output shaft of the servo motor (2) is connected to one of the rotating shafts (3) via a coupling. A conveyor belt (4) is mounted on both rotating shafts (3). The base frame (1)... An inspection box (5) is installed inside the inspection box (5). An ultraviolet light-emitting diode (501) is installed inside the inspection box (5). A spectral camera (8) is installed on the front side inside the inspection box (5). A support plate (6) is installed on one side inside the inspection box (5). An industrial camera (7) is installed on the support plate (6). A display panel (9) is installed on one side outside the inspection box (5). A control box (10) is installed on the base frame (1). A servo motor (2) is electrically connected to the control box (10). An anti-counterfeiting box (11) is placed on the conveyor belt (4). A miniature character (12) is set on the anti-counterfeiting box (11). A centering mechanism is set on the base frame (1).
2. The microtext spectral recognition anti-counterfeiting system according to claim 1, characterized in that: The signal output terminals of the industrial camera (7) and the spectrum camera (8) are electrically connected to the signal input terminal of the control box (10), and the signal output terminal of the control box (10) is electrically connected to the model input terminal of the display panel (9).
3. The microtext spectral recognition anti-counterfeiting system according to claim 2, characterized in that: The central mechanism includes a support base (16), a guide rod (17), a guide plate (18), and an elastic element (19). Support bases (16) are installed on both sides of the base frame (1). Two guide rods (17) are slidably installed on the support bases (16). The two guide rods (17) are connected to the guide plate (18) at one end inside the inspection box (5). Two elastic elements (19) are connected between the support bases (16) and the guide plate (18).
4. The microtext spectral recognition anti-counterfeiting system according to claim 3, characterized in that: It also includes a mounting plate (13), an electric push rod (14) and a push plate (15). Two mounting plates (13) are installed on one side of the base frame (1). An electric push rod (14) is installed on the mounting plate (13). The output end of the electric push rod (14) is fixedly connected to the push plate (15).
5. The microtext spectral recognition anti-counterfeiting system according to claim 4, characterized in that: It also includes a light-blocking curtain (20), and light-blocking curtains (20) are installed on both sides of the inspection box (5).
6. The microtext spectral recognition anti-counterfeiting system according to claim 5, characterized in that: It also includes a receiving plate (21), which is installed on one side of the base frame (1).