CN210488636U - Paper money counterfeit discriminating device based on optical principle - Google Patents
Paper money counterfeit discriminating device based on optical principle Download PDFInfo
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- CN210488636U CN210488636U CN201921866413.2U CN201921866413U CN210488636U CN 210488636 U CN210488636 U CN 210488636U CN 201921866413 U CN201921866413 U CN 201921866413U CN 210488636 U CN210488636 U CN 210488636U
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Abstract
The utility model discloses a, a pseudo-device of paper currency discrimination based on optical principle, including transmission receiving circuit module, information analysis processing module, transmission receiving circuit module is including emitter and receiving arrangement, emitter and receiving arrangement are including the casing, still be provided with circuit board A, multispectral emitting diode, printing opacity piece A in emitter's the casing, be provided with circuit board B, photosensitive sensor, printing opacity piece B in receiving arrangement's the casing, the utility model discloses to the pseudo-means of multiple discrimination of paper currency, through the reflection and the refraction collection light signal of light, through the accurate sensitive paper currency type of differentiateing, face value, true and false, whether unfilled corner scheduling problem after information processing analysis module handles, overcome the light signal that light transmission leads to weaken, utilize lens cooperation reinforcing sensitivity, improvement differentiation precision simultaneously.
Description
Technical Field
The utility model relates to an optics principle, especially relate to a paper currency false distinguishing device based on optics principle.
Background
The checking machine is an indispensable machine for bulk cash transaction, can not only replace manpower to distinguish true and false, but also can identify and calculate the accumulated amount of money for paper money with different denominations by the checking machine in the prior art, but the more and more clear counterfeiting technology makes the checking machine more and more challenged.
At present, the existing cash counter is provided with a plurality of counterfeit identifying devices, but whether the paper money is subjected to magnetic counterfeit identification or optical counterfeit identification, the paper money is used for a long time and becomes old, the magnetism becomes weak or stains cause inaccurate detection, particularly the magnetic counterfeit identification is basically realized, and the counterfeit money appearing on the market can be identified, so the current mainstream technology adopts a light transmission mode to match with a photosensitive element to realize counterfeit identification.
The working principle is as follows: the optical signal of specific wavelength is transmitted to the specific region of paper currency with the illuminator, utilize the absorption of the different materials of different thickness of different colours on the paper currency to the light, the optical signal who gathers after according to the transmission differentiates, but because the penetrating absorption problem of optical signal, the optical signal that often receives is weak, let the false-proof more difficult, and because the difference of the paper currency anti-fake measures of different countries, the transmission of prior art is received often only to certain region and is detected, adaptability is low, and can carry out sensors such as CIS of adopting more that the full-width scan is carried out to paper currency, the body twines with high costsly, the price/performance ratio is low.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a higher, the sensitivity stronger, the purchasing cost is lower, the stronger false device of counting currency machine discernment of suitability based on the degree of accuracy of light reflection principle.
Aiming at the problems, the technical scheme is as follows: a paper money counterfeit distinguishing device based on an optical principle comprises a transmitting and receiving circuit module and an information analysis processing module, and is characterized in that the transmitting and receiving circuit module comprises a transmitting device and a receiving device, the transmitting device and the receiving device comprise a shell, the shell is a cavity, an opening is formed in one end of the shell, a circuit board A is further arranged in the shell of the transmitting device, the circuit board A comprises a multispectral light-emitting diode which is fixedly arranged opposite to the opening, a concave lens-shaped light-transmitting sheet A is fixedly arranged on the opening of the transmitting device, a circuit board B is arranged in the shell of the receiving device, the circuit board B comprises a photosensitive sensor which is fixedly arranged opposite to the opening, a convex lens-shaped light-transmitting sheet B is fixedly arranged on the opening of the transmitting device, and the photosensitive sensor receives optical signals reflected by the multispectral light-emitting diode on paper money, then the image is transmitted to an information analysis processing module to be compared in a centralized way to form an image which is finally used for distinguishing the paper money.
The light transmitting sheet A is in a double-sided concave lens shape, the light source surface near the light transmitting sheet A can better receive the light source emitted by the multispectral light emitting diode, and the light source surface is more uniformly diffused and irradiated on the whole paper money from the far light source surface after being refracted by the concave lens-shaped light transmitting sheet A.
The light-transmitting sheet B is in a double-sided convex lens shape, reflected light is refracted and converged through the convex lens-shaped light-transmitting sheet B to enhance the intensity of light signals collected by the photosensitive sensor, and the false distinguishing precision is improved. The multispectral light-emitting diodes can be arranged in multiple groups and can emit infrared rays and any one of visible light and invisible light simultaneously or alternatively, and the emitting device at least can emit red, green and blue lights.
And the light-transmitting sheet A and the light-transmitting sheet B are respectively provided with proper curvature radiuses through calculating image distances and object distances.
The receiving devices can be arranged in a plurality of positions at different angles of the paper money and can collect color change signals of the optically variable printing ink on the paper money based on the characteristics of the optically variable printing ink.
The optimal included angle between the receiving devices is 45-60 degrees.
At least one group of the transmitting device and the receiving device is arranged at the positive position of the paper money.
The utility model discloses following beneficial effect has:
through transmitting at least three kinds of light reflection simultaneously or in turn and receiving the back formation of image, utilize concave lens divergent light source to reach less pointolite illumination whole paper currency simultaneously, also make the light of shining on the paper currency more even, the reflection effect is better, utilize the principle of convex lens spotlight to let the light signal focus of reflection, let the signal that photosensitive sensor received more clear, distinguish more accurately, and a plurality of sensors collect information centralized processing and avoid the error, and then through infrared false-distinguishing, ultraviolet false-distinguishing, multispectral false-distinguishing, the various false-distinguishing of color-changing printing ink color-changing domain detects modes such as, distinguish currency, true and false, clear branch to paper currency, this scheme can be directed against many currencies, many face values, multiple anti-fake measures, can accurate and sensitive detection paper currency, the many currencies of this product counting machine simultaneously, make this product have bigger market space, the utility model discloses rational in infrastructure, low in construction cost, the most of money general adaptability of, The discrimination is high and the detection is accurate.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic block diagram of the present invention;
fig. 3 is a schematic view of a launching device of the present invention;
fig. 4 is a schematic view of a receiver according to the present invention;
reference numerals: 1. a housing; 3. an opening; 4. a light transmitting sheet A; 5. a light transmitting sheet B; 6. a circuit board A; 7. a circuit board B; 8. a photosensitive sensor; 9. multispectral light emitting diodes.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. As shown in fig. 1, 2, 3 and 4, the paper money counterfeit discriminating device based on the optical principle comprises a transmitting and receiving circuit module and an information analyzing and processing module, and is characterized in that the transmitting and receiving circuit module comprises a transmitting device and a receiving device, the transmitting device and the receiving device comprise a housing 1, the housing 1 is a cavity, one end of the housing 1 is provided with an opening 3, the housing 1 of the transmitting device is further provided with a circuit board A6, the circuit board A6 comprises a multispectral light emitting diode 9 which is fixedly arranged opposite to the opening 3, the opening 3 of the transmitting device is fixedly provided with a concave lens-shaped light transmitting sheet A4, the housing 1 of the receiving device is internally provided with a circuit board B7, the circuit board B7 comprises a photosensitive sensor 8 which is fixedly arranged opposite to the opening 3, and the opening 3 of the transmitting device is fixedly provided with a convex lens-shaped light transmitting sheet B5, the photosensitive sensor 8 receives the light signals reflected by the paper money irradiated by the multispectral light-emitting diode 9, and then the light signals are transmitted to the information analysis processing module to be intensively compared to form an image finally used for distinguishing the paper money.
The light transmitting sheet A4 is in a double-sided concave lens shape, the light source surface near the light transmitting sheet A4 can better receive the light source emitted by the multispectral light emitting diode 9, and the light source is refracted by the concave lens-shaped light transmitting sheet A4 and then is radiated to the whole paper money from the far light source surface more uniformly.
The light-transmitting sheet B5 is in a double-sided convex lens shape, reflected light is refracted and converged through the convex lens-shaped light-transmitting sheet B5 to enhance the intensity of light signals collected by the photosensitive sensor, and the false distinguishing precision is improved. The multispectral light-emitting diodes 9 can be arranged in a plurality of groups, can emit infrared rays and any one of visible light and invisible light simultaneously or alternatively, and the emitting device at least can emit red, green and blue lights.
And the light-transmitting sheet A4 and the light-transmitting sheet B5 are respectively provided with proper curvature radiuses through calculating image distances and object distances.
The receiving devices can be arranged in a plurality of positions at different angles of the paper money and can collect color change signals of the optically variable printing ink on the paper money based on the characteristics of the optically variable printing ink.
The optimal included angle between the receiving devices is 45-60 degrees.
At least one group of the transmitting device and the receiving device is arranged at the positive position of the paper money.
The principle is as follows:
after the paper money enters a checking channel of the cash register, the multispectral light-emitting diode 9 lights up to emit various visible light and invisible light simultaneously or alternatively, the light transmitting sheet A4 at the front end of the multispectral light-emitting diode 9 is in a double-faced concave lens shape, so that the near light source surface can better receive the emitted light, the light is refracted by the concave lens-shaped light transmitting sheet A4 and then is more uniformly diffused from the far light source surface to irradiate the whole paper money, the light transmitting sheet B5 at the front end of the photosensitive sensor 8 is in a double-faced convex lens shape, the light signal reflected by the paper money is weakened to a certain degree according to the reflection and refraction principles of the light, so that the reflected light can be converged by the convex lens-shaped light transmitting sheet B5 to enhance the intensity of the light signal collected by the photosensitive sensor, the light signal collected by the photosensitive sensor 8 is transmitted to the information analysis processing module to synthesize a counterfeit identification image for identifying, The currency, face value, true and false, the complete degree of paper currency are distinguished, information such as warning is exported for next device to various authentication modes such as ultraviolet, multispectral, light-variable printing ink, the light is dispersed by concave lens in this process, can be better more even shine on whole paper currency, convex lens can be better converge the light, focus light on the sensor and improve sensitivity, the device of this scheme is applicable to more currencies.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A paper money counterfeit distinguishing device based on an optical principle comprises a transmitting and receiving circuit module and an information analysis processing module, and is characterized in that the transmitting and receiving circuit module comprises a transmitting device and a receiving device, the transmitting device and the receiving device comprise shells, the shells are cavities, an opening is formed in one end of each shell, a circuit board A is further arranged in each shell of the transmitting device, each circuit board A comprises a multispectral light-emitting diode which is fixedly arranged in the direction opposite to the opening, a concave lens-shaped light-transmitting sheet A is fixedly arranged on each opening of the transmitting device, a circuit board B is arranged in each shell of the receiving device, each circuit board B comprises a photosensitive sensor which is fixedly arranged in the direction opposite to the opening, a convex lens-shaped light-transmitting sheet B is fixedly arranged on each opening of the transmitting device, and each photosensitive sensor receives a light signal reflected by the multispectral light-emitting diode on a paper money, then the image is transmitted to an information analysis processing module to be compared in a centralized way to form an image which is finally used for distinguishing the paper money.
2. The device as claimed in claim 1, wherein the transparent sheet a is in the shape of a double concave lens, the near light source surface of the transparent sheet a can better receive the light source emitted from the multispectral led, and the light refracted by the concave lens-shaped transparent sheet a can be more uniformly diffused to the whole paper money from the far light source surface.
3. The optical paper money discriminator according to claim 1, wherein the light-transmitting sheet B has a lenticular shape, and the reflected light is refracted and converged by the lenticular light-transmitting sheet B to enhance the intensity of the light signal collected by the photosensor, thereby improving the discrimination accuracy.
4. An optical banknote validator as claimed in claim 1 wherein the multispectral leds are arranged in a plurality of groups and emit infrared light simultaneously or alternately with visible and invisible light, and the emitters are arranged to emit red, green and blue light.
5. The optical-based paper money discriminating apparatus as claimed in claim 1, wherein the transparent sheet a and the transparent sheet B are respectively provided with suitable curvature radii by calculating an image distance and an object distance.
6. The paper currency discrimination device based on the optical principle as claimed in claim 1, wherein the receiving device can be provided in plurality at the same time, and based on the characteristics of the optically variable ink, the fixedly provided receiving devices are located at different angles of the paper currency and collect the color change signals of the optically variable ink on the paper currency at the same time.
7. An optical banknote validator as claimed in claim 6 wherein the preferred angle between the receivers is between 45 ° and 60 °.
8. An optical-based paper currency discriminating device as claimed in claim 1 wherein at least one of said emitting means and said receiving means is disposed in a forward position of the paper currency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866413.2U CN210488636U (en) | 2019-11-01 | 2019-11-01 | Paper money counterfeit discriminating device based on optical principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866413.2U CN210488636U (en) | 2019-11-01 | 2019-11-01 | Paper money counterfeit discriminating device based on optical principle |
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| CN210488636U true CN210488636U (en) | 2020-05-08 |
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| CN201921866413.2U Active CN210488636U (en) | 2019-11-01 | 2019-11-01 | Paper money counterfeit discriminating device based on optical principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693434A (en) * | 2020-06-19 | 2020-09-22 | 中建路桥集团有限公司 | Experimental device for testing concrete impermeability |
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2019
- 2019-11-01 CN CN201921866413.2U patent/CN210488636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693434A (en) * | 2020-06-19 | 2020-09-22 | 中建路桥集团有限公司 | Experimental device for testing concrete impermeability |
| CN111693434B (en) * | 2020-06-19 | 2024-01-19 | 中建路桥集团有限公司 | Experimental device for test concrete impervious performance |
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