Multispectral paper money and bill discriminator
By integrating a multispectral module and a rotating display screen, the design solves the problems of insufficient functional integration and comprehensive detection in existing banknote detectors, achieving high-precision banknote anti-counterfeiting mark identification and multi-angle observation, and adapting to the identification needs of banknotes of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YINKAI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-17
AI Technical Summary
Existing banknote detectors are inadequate in terms of functional integration and comprehensiveness of detection, making it difficult to systematically cover the complex anti-counterfeiting features of banknotes. Furthermore, defects in their mechanical structure and detection logic result in low accuracy in recognizing highly realistic counterfeit banknotes and difficulty in identifying new composite anti-counterfeiting marks.
Design a multispectral banknote and bill authentication instrument that integrates ultraviolet light, red light, white light and laser modules, combined with a rotating display screen and side seam structure to achieve multimodal spectral fusion detection, support multi-angle observation and local identification, and adapt to banknotes of different sizes.
It significantly improves the accuracy of anti-counterfeiting identification of banknotes and bills, reduces the risk of banknote jamming, supports multi-angle observation and partial identification, and adapts to the detection needs of banknotes of different sizes.
Smart Images

Figure CN224137758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of banknote and bill identification technology, specifically a multispectral banknote and bill identification instrument. Background Technology
[0002] Current banknote authentication instruments suffer from significant shortcomings in terms of functional integration and comprehensive detection capabilities. Traditional equipment often employs single technologies such as ultraviolet fluorescence detection and magnetic detection, resulting in fragmented detection dimensions and an inability to systematically cover the complex anti-counterfeiting features of banknotes. For example, the ultraviolet light source in existing equipment can only verify the fluorescence reaction of the paper substrate, while the identification of colorless fluorescent ink in banknotes requires more sensitive spectral analysis. Although the red light penetration detection module can operate independently, its transmittance data cannot be synchronized with the white light imaging system, resulting in a lack of cross-verification of key parameters such as ink density distribution and infrared absorption characteristics. Furthermore, the light source configuration of most devices is limited to a single wavelength such as natural light or infrared light, which cannot simultaneously acquire the three-dimensional effect of intaglio ink under natural light, lacks the ability to detect fluorescent marks excited by ultraviolet light, and makes it difficult to enhance the detailed identification of special anti-counterfeiting areas through laser modules. This fragmented technical approach results in the inability to fuse multispectral data, affecting the accuracy of identifying highly realistic counterfeit banknotes and making it difficult to meet the identification needs of new composite anti-counterfeiting marks. Meanwhile, existing equipment suffers from inherent flaws in its mechanical structure and detection logic. For example, fixed light source layouts are difficult to adapt to the texture features of banknotes of different denominations, and rigid banknote feeding channels can easily cause folding at the edges of large banknotes, leading to missed detections of critical areas such as security threads and registration marks. The inefficiency of technology integration has become a core bottleneck restricting the upgrading of banknote authentication equipment. Utility Model Content
[0003] Therefore, in order to solve the above problems, the purpose of this utility model is to provide a multispectral banknote and bill identification instrument, including a base plate, a side plate and a top plate. A camera is provided in the middle of the lower end surface of the top plate, and two sets of light components are symmetrically arranged on both sides of the camera. The light components are arranged facing the base plate. The light components include a violet light module, a red light module and a white light module. A display screen is rotatably connected to the upper end of the top plate. A control panel is provided at the front end of the base plate. The control panel has control buttons and is electrically connected to the light components.
[0004] Preferably, a laser component is provided on the lower end face of the top plate, the laser component is disposed between the camera and the front end of the top plate, and the laser component is electrically connected to the control panel.
[0005] Preferably, the violet light module, red light module, and white light module are arranged sequentially in a direction that gradually moves away from the camera.
[0006] Preferably, the control panel is further provided with a magnetic induction device.
[0007] Preferably, a side seam is provided between the side plate and the bottom plate to allow banknotes to pass through.
[0008] Preferably, the display screen is connected to the top plate via a rotating shaft, and several elastic protrusions are arranged circumferentially at both ends of the rotating shaft. The top plate is provided with a rotating shaft seat, and the rotating shaft seat is provided with a stop groove, which cooperates with the elastic protrusions.
[0009] Preferably, it also includes an auxiliary identification device. The side plate is provided with a data interface. The auxiliary identification device is connected to the data interface via a data cable. The auxiliary identification device is provided with a camera and a light component. The middle part of the auxiliary identification device is hollowed out to allow the light component to emit light and the camera to take pictures.
[0010] Preferably, the lower end of the side plate is also provided with a light component.
[0011] The beneficial effects of this utility model are:
[0012] This utility model integrates ultraviolet light, red light, white light, and laser modules, which can effectively assist users in identifying anti-counterfeiting marks such as colorless ink, transmittance, and embossing on banknotes and bills. It achieves multi-modal spectral fusion detection, significantly improving the accuracy of identifying paper material, ink density, and complex anti-counterfeiting marks. Its rotatable display screen can be adjusted to multiple angles through the cooperation of elastic protrusions and slots, making it convenient for users to observe banknote details. The side seam allows longer or larger banknotes and bills to be placed outside the device, supporting partial identification and reducing the risk of banknote jamming. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the hidden base plate of this utility model;
[0016] Figure 3 This is a structural schematic diagram of the top slab;
[0017] Figure 4 for Figure 3 A schematic diagram of the structure at point A;
[0018] Figure 5 This is a schematic diagram of the structure of Example 2;
[0019] Figure 6This is a structural schematic diagram from another angle of Example 2;
[0020] The following are the reference numerals: 1. Base plate; 2. Side plate; 21. Side seam; 3. Top plate; 31. Rotary bearing seat; 32. Gear slot; 33. Laser assembly; 4. Display screen; 41. Elastic protrusion; 5. Light assembly; 51. Ultraviolet light module; 52. Red light module; 53. White light module; 6. Camera; 7. Control panel; 71. Control button; 72. Magnetic induction device; 8. Auxiliary identification device.
[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0022] 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.
[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] Example 1:
[0026] Figures 1-4 This invention provides a multispectral banknote identification device, comprising a base plate 1, side plates 2, and a top plate 3. The side plates 2 include two side plates on the left and right and a rear side plate 2. The lower end of the top plate 3 is provided with a camera 6 and a light assembly 5. The camera 6 is used to photograph banknotes placed on the base plate 1. The light assembly 5 includes a violet light module 51, a red light module 52, and a white light module 53. A display screen 4 is rotatably connected to the upper end of the top plate 3. The front end of the base plate 1 is provided with a control panel 7, which has control buttons 71. The control panel 7 is electrically connected to the light assembly 5.
[0027] The control panel 7 is equipped with a corresponding control system. After pressing the control button 71 on the control panel 7, the control system controls the purple light module 51, red light module 52, and white light module 53 to emit purple light, red light, and white light respectively. Among them, purple light can be used to assist in the identification of colorless ink anti-counterfeiting labels, infrared light can be used to assist in the identification of transmittance anti-counterfeiting labels, and white light is used to assist in the identification of embossed anti-counterfeiting labels. The camera 6 is always on during use, and the images it captures are transmitted to the display screen 4 through the control system. The control system is specifically mounted on the circuit board built into the base plate 1. The control system is existing technology and will not be described in detail here.
[0028] The display screen 4 can be manually rotated to a suitable angle for the user. The display screen 4 is connected to the top plate 3 through a damping structure, which allows the display screen 4 to be fixed at a certain rotation angle for easy viewing by the user. Specifically, the display screen 4 is rotatably connected to the top plate 3 through a rotating shaft. Both ends of the rotating shaft extend into the interior of the top plate 3, and both ends of the rotating shaft are provided with multiple elastic protrusions 41. The elastic protrusions 41 are arranged circumferentially along the central axis of the rotating shaft. The top plate 3 is provided with a rotating shaft seat 31 that cooperates with the rotating shaft. The rotating shaft seat 31 is provided with a stop groove 32. Specifically, the stop groove 32 cooperates with the elastic protrusions 41. The elastic protrusions 41 can be engaged in any recessed stop groove 32. When the user rotates the display screen 4 by hand, they need to overcome the cooperating force between the elastic protrusions 41 and the stop groove 32 to rotate the shaft. After the display screen 4 is released, the elastic protrusions 41 cooperate with the stop groove 32 to fix the display screen 4 at a certain set angle.
[0029] In addition to the red light module 52, the purple light module 51, and the white light module 53, this embodiment has a laser component 33 mounted on the lower end face of the top plate 3. The laser component 33 is located between the camera 6 and the front end of the top plate 3. The laser component 33 is electrically connected to the control panel 7 through the control system. The control panel 7 is equipped with a control button 71 for controlling the switch of the laser component 33. The laser component 33 can identify some banknotes and notes that use the laser penetration principle as an anti-counterfeiting mark. When the laser shines on such anti-counterfeiting mark, it will form obvious light spots, thereby identifying the authenticity of the banknotes and notes.
[0030] In this embodiment, a magnetic induction device 72 is also installed on the control panel 7 to detect and identify whether the banknote has a magnetic anti-counterfeiting mark.
[0031] In this embodiment, the purple light module 51, the red light module 52, and the white light module 53 are arranged sequentially in a direction that gradually moves away from the camera 6.
[0032] Some banknotes are too large and long. Since the camera 6 is fixed, the anti-counterfeiting mark that is set off to the side on the banknote needs to be moved below the camera 6 during authentication. At this time, the other end of the banknote will be pressed against the inner wall of the side plate 2 and cannot be moved. Forcing it to move will cause the banknote to curl or even be damaged. Therefore, the lower part of the side plate 2 is separated from the base plate 1 to form a side seam 21, which allows the banknote to pass through. In this way, longer banknotes can extend to the outside of the base plate 1 through the side seam 21, and the camera 6 can accurately capture the anti-counterfeiting mark that is set off to the side.
[0033] The lower end of the side panel 2 is also equipped with a light component 5, which also has a purple light module 51, a red light module 52, and a white light module 53 to meet the side lighting requirements of some special banknotes and notes.
[0034] How to use:
[0035] Press the power button to start the device. Select the corresponding function according to the type of banknote to be identified. Press the corresponding control button 71. The corresponding ultraviolet light module 51 / red light module 52 / white light module 53 will be activated to illuminate the banknote on the base plate 1. Flip the display screen 4 to a suitable angle and obtain the partial features of the banknote captured by the camera 6 through the display screen 4 to identify the authenticity of the banknote or bill.
[0036] Example 2:
[0037] Figure 5 , Figure 6 This embodiment illustrates a multispectral banknote and bill authentication device. The difference between this embodiment and Embodiment 1 is that this embodiment is further equipped with an auxiliary authentication device 8. The auxiliary authentication device 8 is connected to the data interface via a data cable. The auxiliary authentication device 8 is equipped with a camera 6 and a light component 5. The middle of the auxiliary authentication device 8 is hollowed out to allow the light component 5 to emit light and the camera 6 to take pictures. The camera 6 has a 50x magnification function and is mainly used to identify the fine anti-counterfeiting marks on some banknotes.
[0038] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A multispectral banknote / note authentication instrument, characterized in that, The device includes a base plate (1), a side plate (2), and a top plate (3). A camera (6) is provided in the middle of the lower end face of the top plate (3). Two sets of light components (5) are symmetrically arranged on both sides of the camera (6). The light components (5) are arranged facing the base plate (1). The light components (5) include a purple light module (51), a red light module (52), and a white light module (53). A display screen (4) is rotatably connected to the upper end of the top plate (3). A control panel (7) is provided at the front end of the base plate (1). The control panel (7) has control buttons (71). The control panel (7) is electrically connected to the light components (5).
2. The multispectral paper currency note discriminator of claim 1, wherein The lower end face of the top plate (3) is provided with a laser component (33), which is located between the camera (6) and the front end of the top plate (3) and is electrically connected to the control panel (7).
3. The multispectral paper currency note discriminator of claim 1, wherein: The purple light module (51), red light module (52), and white light module (53) are arranged in sequence along the direction that gradually moves away from the camera (6).
4. The multispectral paper currency note discriminator of claim 1, wherein: The control panel (7) is also equipped with a magnetic induction device (72).
5. The multispectral paper currency note discriminator of claim 1, wherein: A side seam (21) is provided between the side plate (2) and the bottom plate (1) to allow banknotes to pass through.
6. The multispectral paper currency note discriminator of claim 1, wherein, The display screen (4) is connected to the top plate (3) via a rotating shaft. Several elastic protrusions (41) are arranged circumferentially at both ends of the rotating shaft. The top plate (3) is provided with a rotating shaft seat (31). The rotating shaft seat (31) is provided with a stop groove (32). The stop groove (32) cooperates with the elastic protrusions (41).
7. The multispectral paper currency note discriminator of claim 1, wherein: It also includes an auxiliary identification device (8), on which a data interface is provided. The auxiliary identification device (8) is connected to the data interface via a data cable. The auxiliary identification device (8) is equipped with a camera (6) and a light component (5). The middle part of the auxiliary identification device (8) is hollowed out so that the light component (5) can emit light and the camera (6) can take pictures.
8. The multispectral paper currency note discriminator of claim 1, wherein, The lower end of the side plate (2) is also provided with a light component (5).