CN115131909B - RGB color recognition system and method for banknote checking and anti-counterfeiting - Google Patents
RGB color recognition system and method for banknote checking and anti-counterfeiting Download PDFInfo
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/20—Testing patterns thereon
- G07D7/2016—Testing patterns thereon using feature extraction, e.g. segmentation, edge detection or Hough-transformation
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
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Abstract
The invention discloses an RGB color recognition system and method for banknote checking and anti-counterfeiting, and belongs to the technical field of banknote anti-counterfeiting detection. The invention relates to an RGB color identification system and a method for detecting banknote and preventing counterfeiting, wherein the RGB color identification system comprises a main control module and an RGB color collection module, and the input end of the main control module is connected with the output ends of a banknote inlet, a banknote R component, a banknote G component and a banknote B component. The invention solves the problems that the existing banknote validator can only discriminate the domestic banknote types, and the color difference of the banknote can be greatly different along with the replacement of the banknote, and the counterfeit banknote is greatly hindered, and the designed color acquisition platform and the identification method are very convenient for the subsequent function upgrading of the system, and only the software color threshold parameter is required to be modified when the new version of the RMB is released in the future, thereby greatly reducing the hardware design cost and the design time of the system and bringing greater economic benefit.
Description
Technical Field
The invention relates to the technical field of banknote anti-counterfeiting detection, in particular to an RGB color recognition system and method for banknote detection anti-counterfeiting.
Background
The research of the anti-counterfeit money identification technology is quickened, and the anti-counterfeit money identification technology is an important technical guarantee for eliminating adverse effects of counterfeit money on the financial economic market of China and maintaining public safety in the financial field of China.
However, most of the existing banknote detectors can only discriminate domestic banknote types, and the color differences of the banknotes can be greatly different along with the replacement of the banknotes, so that the anti-counterfeit banknote detection is greatly hindered; therefore, the existing requirements are not met, and an RGB color recognition system and a method for banknote checking and anti-counterfeiting are provided.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defect that the existing banknote validator can only discriminate domestic banknote types, and the color difference of the banknotes can be greatly different along with the replacement of the banknotes, so that the banknote validator is greatly hindered, and the RGB color recognition system and the RGB color recognition method for banknote validation and counterfeiting are provided, so that the defects are overcome, and the banknote validator is convenient to use.
2. Technical proposal
In order to achieve the above purpose, the present invention provides the following technical solutions: the RGB color recognition system for banknote checking and anti-counterfeiting comprises a main control module and an RGB color collection module, wherein the input end of the main control module is connected with the output ends of a banknote inlet, a banknote R component, a banknote G component and a banknote B component, the output end of the main control module is connected with the input ends of a display terminal, a banknote feeding and twisting device, a printing device and a serial port, the output end of the banknote feeding and twisting device is connected with the input end of the RGB color collection module, the output end of the RGB color collection module is connected with the input ends of the banknote R component, the banknote G component and the banknote B component, and the RGB color collection module comprises a multichannel sensing element;
banknote R component: a red value duty cycle representing the currently detected banknote surface;
Banknote G component: a green value duty cycle representing the current detected banknote surface;
Banknote B component: the blue value representing the currently detected banknote surface is the duty cycle.
Preferably, the main control module comprises a chip controller, a modulation circuit module and a feedback display module, and the chip controller comprises an information acquisition module, an information transmission module and an information processing module;
And the information acquisition module is used for: the operation data of various mechanisms inside the instrument can be collected;
And an information transfer module: other discrimination elements responsible for uploading the detection structure to the interior of the instrument;
an information processing module: analysis calculations can be performed on the collected data.
Preferably, the multichannel sensing element is interactively connected with the main control module, and comprises a photodiode and an LED multi-color light source plate, and is arranged inside the multichannel sensing element box.
Preferably, the multichannel sensing element box comprises a storage box body and a packaging back shell, one side of the storage box body is provided with a plurality of collection windows, the inside of each collection window is provided with a retention frame, and the multichannel sensing element is connected with the collection window through the retention frame.
Preferably, the storage box body is connected with the packaging back shell through screws, an element mounting groove is formed in the storage box body, a banknote twisting frame is arranged below one side of the storage box body, and the banknote twisting frame and the storage box body are arranged into an integrated structure.
Preferably, an integrated housing is arranged on the outer side of the multichannel sensing element, the photodiode and the LED polychromatic light source plate are connected with the integrated housing through screws, a data line is arranged at one end of the integrated housing, and the data line is electrically connected with the photodiode and the LED polychromatic light source plate.
Preferably, the surface of LED polychromatic light source board is provided with lamp pearl distribution face, and lamp pearl distribution face and LED polychromatic light source board electric connection, one side of LED polychromatic light source board is provided with the mixing of colors pin, and mixing of colors pin has a plurality ofly.
Preferably, an optical lens is arranged at one end of the photodiode, the optical lens is connected with the photodiode in a combined mode, one side of the photodiode is provided with four RGB output ports, the other end of the photodiode is provided with a power port, and the power port is electrically connected with the photodiode.
The application method of the RGB color recognition system for banknote checking and anti-counterfeiting comprises the following steps:
Step one: the multi-channel sensing element is arranged in a corresponding multi-channel sensing element box, then the multi-channel sensing element box is fixed above a banknote inlet of the banknote tester, banknote is put into the banknote tester from the banknote inlet, and banknote feeding counting is carried out by the banknote tester;
Step two: the color value of each banknote can be collected by the photodiode and the LED polychromatic light source plate on the multichannel sensing element in the banknote feeding and twisting process, firstly, the LED polychromatic light source plate irradiates a light source on the front and back sides of the banknote, and the light source irradiated on the banknote is reflected to the photodiode;
Step three: after the reflected tristimulus values are collected, color detection is realized by measuring three primary colors forming object colors, RGB three primary colors of the paper currency to be identified are collected and parameterized, and then the parameterized data of the paper currency to be identified and the parameterized data of the paper currency bill database are subjected to discriminant analysis, so that the denomination and the authenticity of the paper currency to be detected can be obtained.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The invention combines the multi-channel detection and multi-channel fusion technology of the RMB by utilizing the new-edition banknote identification system of the compact RGB color sensor, adopts the high-speed banknote feeding platform to realize the identification of the RMB banknote, can greatly improve the banknote identification capability, has the identification accuracy far higher than that of banknote identification machines in the current market, and becomes an indispensable key device for financial machines, thereby deeply making up the shortages of the banknote identification machines in the market, having wide application prospect in the occasions requiring the RMB identification such as banks, markets and the like, improving the anti-counterfeit capability of the RMB banknote, playing an important role in the occurrence and circulation of the hit counterfeit banknote and maintaining the credit of the RMB and the public safety in the financial field;
(2) The designed color acquisition platform and the designed identification method lead the subsequent function upgrade of the system to be very convenient, and when a new version of RMB is released in the future, only the software color threshold parameter is needed to be modified, thereby greatly reducing the hardware design cost and the design time of the system and bringing greater economic benefit;
(3) The invention has simple structure, low cost, accurate accumulated amount and high discrimination, can easily detect the denomination and authenticity of paper money, is popular with more users, wins larger market and sales for the identification system, and brings larger economic benefit;
(4) The invention has the advantages that the colors of the currencies and the denominations of the countries are different, so that the authenticity and the denomination and currency can be identified by the color sensor, the problem that the denominations are the same in different length and width can be well solved, and a good solution is provided for the field of foreign currency financial equipment;
(5) According to the invention, the multi-path color sensors are arranged on the banknote passing channel, a redundant design is adopted, at least two color sensors are arranged, so that the problem of the banknote counting and checking machine after one color sensor is damaged can be avoided, the condition that counterfeit banknotes are received due to incapability of detection is avoided, the positions of the multi-path color sensors on the banknote passing channel are optimized, and the accuracy of data collection and banknote identification discrimination is improved by utilizing a multi-path fusion technology.
Drawings
FIG. 1 is an overall operational flow diagram of the present invention;
FIG. 2 is a schematic diagram of the main control module structure of the present invention;
FIG. 3 is a schematic view of the structure of the acquisition window according to the present invention;
FIG. 4 is a schematic diagram of a component placement slot according to the present invention;
FIG. 5 is a schematic diagram of a multi-channel sensor according to the present invention;
FIG. 6 is a schematic diagram of a LED multi-color light source board according to the present invention;
FIG. 7 is a schematic diagram of an RGB output port structure according to the present invention;
FIG. 8 is a schematic diagram of a power port according to the present invention;
FIG. 9 is a RGB spectrogram of a 1-element banknote according to the present invention;
FIG. 10 is a RGB spectrogram of a 10-membered note according to the present invention;
FIG. 11 is a 20-element banknote RGB spectrogram of the present invention;
FIG. 12 is a 50-membered banknote RGB spectral chart of the present invention.
In the figure: 1. a main control module; 2. an RGB color collection module; 3. a multichannel sensing element; 4. a photodiode; 5. LED polychromatic light source board; 6. a chip controller; 7. a modulation circuit module; 8. a feedback display module; 9. a multichannel sensing element cartridge; 301. an integrated housing; 302. a data line; 401. an RGB output port; 402. an optical lens; 403. a power port; 501. a lamp bead distribution plate surface; 502. a color mixing pin; 601. an information acquisition module; 602. an information transfer module; 603. an information processing module; 901. A storage box body; 902. packaging a back shell; 903. a collection window; 904. a component mounting groove; 905 banknote twisting frame; 906. and (5) a retention frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For a further understanding of the invention, the invention will be described in detail with reference to the drawings
Referring to fig. 1, an embodiment of the present invention is provided: the RGB color recognition system for banknote checking anti-counterfeiting comprises a main control module 1 and an RGB color collection module 2, wherein in the technical field of banknote recognition, the color recognition of a compact RGB color sensor is innovatively integrated, the banknote recognition is realized, the cost is low, the banknote denomination recognition is accurate, the discrimination degree is high, the colors of the banknotes in each country and each denomination are different, therefore, the authenticity and the discrimination denomination and the denomination are discriminated through the color sensor, the problem that the denomination has the same width and length can be well solved by the color sensor, the input end of the main control module 1 is connected with the output end of a banknote inlet, a banknote R component, a banknote G component and a banknote B component, the output end of the main control module 1 is connected with the input end of a display terminal, banknote feeding, banknote printing and serial port, the output end of the banknote feeding banknote is connected with the input end of the RGB color collection module 2, the output end of the RGB color collection module 2 is connected with the input end of the banknote R component, the banknote G component and the banknote B component, the RGB color collection module 2 comprises a multichannel sensing element 3, and the multichannel sensing element 3 is sensitive to light of red light (640 to 680 nm) and blue light (390 nm=390 nm);
banknote R component: a red value duty cycle representing the currently detected banknote surface;
Banknote G component: a green value duty cycle representing the current detected banknote surface;
Banknote B component: the blue value representing the currently detected banknote surface is the duty cycle.
Referring to fig. 2, the main control module 1 includes a chip controller 6, a modulation circuit module 7 and a feedback display module 8, and the chip controller 6 includes an information acquisition module 601, an information transfer module 602 and an information processing module 603;
Information acquisition module 601: the operation data of various mechanisms inside the instrument can be collected;
information transfer module 602: other discrimination elements responsible for uploading the detection structure to the interior of the instrument;
the information processing module 603: analysis calculations can be performed on the collected data.
The multichannel sensing element 3 is inter-connected with the main control module 1, and the multichannel sensing element 3 comprises a photodiode 4 and an LED polychromatic light source board 5, the multichannel sensing element 3 being arranged inside a multichannel sensing element box 9.
Referring to fig. 3-4, the multi-channel sensing element box 9 includes a storage box body 901 and a packaging back shell 902, one side of the storage box body 901 is provided with a collection window 903, the collection window 903 is provided with a plurality of collection windows 903, a retention frame 906 is provided in the collection window 903, the multi-channel sensing element 3 is connected with the collection window 903 through the retention frame 906, the storage box body 901 is connected with the packaging back shell 902 through a screw, an element mounting groove 904 is provided in the storage box body 901, a banknote twisting frame 905 is provided below one side of the storage box body 901, the banknote twisting frame 905 and the storage box body 901 are provided as an integral structure, a plurality of color sensors are provided on a banknote path, a redundant design is adopted, at least two color sensors are provided, so that after one color sensor is damaged, the banknote counting and detecting machine cannot detect the condition that counterfeit banknotes are received, the position of the plurality of channels on the banknote path is optimized, and the accuracy of collecting data and the banknote discrimination is improved by utilizing a multi-channel fusion technology.
Referring to fig. 5-6, an integrated housing 301 is disposed on the outer side of the multichannel sensing element 3, a photodiode 4 and an LED polychromatic light source board 5 are connected with the integrated housing 301 through screws, a data line 302 is disposed at one end of the integrated housing 301, the data line 302 is electrically connected with the photodiode 4 and the LED polychromatic light source board 5, a bead distribution board 501 is disposed on the outer surface of the LED polychromatic light source board 5, the bead distribution board 501 is electrically connected with the LED polychromatic light source board 5, a color mixing pin 502 is disposed on one side of the LED polychromatic light source board 5, the color mixing pins 502 are plural, the modulation circuit module 7 is matched with the LED polychromatic light source board 5 to control the appropriate brightness of the light source, the auxiliary color sensor collects tristimulus values, and the information is filtered and amplified through operational amplification to obtain the RGB colors of the detected paper money, so as to solve the main color differences between different notes and different countries.
Referring to fig. 7-8, an optical lens 402 is disposed at one end of the photodiode 4, the optical lens 402 is connected to the photodiode 4 in a combined manner, one side of the photodiode 4 is provided with four RGB output ports 401, each RGB output port 401 corresponds to a set of data output of a color, and a power port 403 is disposed at the other end of the photodiode 4 and electrically connected to the photodiode 4.
Referring to fig. 9-12, a method for using an RGB color identification system for banknote detection and anti-counterfeiting includes the following steps:
Step one: the multichannel sensing element 3 is arranged in a corresponding multichannel sensing element box 9, then the multichannel sensing element box 9 is fixed above a banknote inlet of the banknote tester, banknotes are put into the banknote tester from the banknote inlet, and the banknote tester drives the banknotes to send and count;
Step two: the color value of each banknote can be collected by the photodiode 4 and the LED polychromatic light source plate 5 on the multichannel sensing element 3 in the banknote feeding and twisting process, firstly, the LED polychromatic light source plate 5 irradiates a light source on the front and back sides of the banknote, the light source irradiated on the banknote is reflected to the photodiode 4, the outer surface of the LED polychromatic light source plate 5 is provided with a light bead distribution plate surface 501, one side of the LED polychromatic light source plate 5 is provided with a plurality of color mixing pins 502, the different color mixing pins 502 can enable the LED polychromatic light source plate 5 to emit light sources with different brightness or colors after being electrified, so that the modulation circuit module 7 is matched with the LED polychromatic light source plate 5 to control the proper brightness of the light source, the auxiliary color sensor is used for collecting tristimulus values, and the information is filtered and amplified through operational amplification, so that the color of the detected banknote is obtained, and the main color difference between banknotes with different banknotes and different countries is solved;
Step three: after the reflected tristimulus values are collected, color detection is realized by measuring three primary colors forming object colors, RGB three primary colors of the paper currency to be identified are collected and parameterized, and then the parameterized data of the paper currency to be identified and the parameterized data of the paper currency bill database are subjected to discriminant analysis, so that the denomination and the authenticity of the paper currency to be detected can be obtained.
In conclusion, the multichannel sensing element 3 is arranged in the corresponding multichannel sensing element box 9, the multichannel sensing element box 9 is fixed above the banknote inlet of the banknote tester, the banknote is placed in the banknote inlet of the banknote tester, the banknote tester drives the banknote to send and count, the photodiode 4 and the LED polychromatic light source plate 5 on the multichannel sensing element 3 can collect color values on each banknote in the banknote sending and twisting process, firstly, the LED polychromatic light source plate 5 irradiates the light source on the front and back sides of the banknote, the light source irradiated on the banknote can reflect to the photodiode 4, the modulation circuit module 7 is matched with the LED polychromatic light source plate 5 to control the proper brightness of the light source, the auxiliary color sensor collects tristimulus values, the information is filtered and amplified through operational amplifier to obtain the RGB color of the detected banknote, after the three tristimulus values are collected, the color detection is realized through measuring the three banknotes forming object colors, the RGB of the banknote to be identified is collected, the parameterization is performed through the RGB of the banknote to be identified, the parameterization data to be identified and the parameterization data of the banknote to be identified are well different in the color values, the different color values can be well-distinguished by the different color values, the different color values can be well-distinguished and different color values can be well-distinguished, the different color devices can be well-distinguished and the different color values can be well-distinguished.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The RGB color recognition system for banknote checking and anti-counterfeiting comprises a main control module (1) and an RGB color collection module (2), and is characterized in that: the input end of the main control module (1) is connected with the input ends of a banknote inlet, a banknote R component, a banknote G component and a banknote B component, the output end of the main control module (1) is connected with the input ends of a display terminal, a banknote feeding and twisting module, a printing and serial port, the output end of the banknote feeding and twisting module is connected with the input end of an RGB color collection module (2), the output end of the RGB color collection module (2) is connected with the input ends of the banknote R component, the banknote G component and the banknote B component, and the RGB color collection module (2) comprises a multichannel sensing element (3);
banknote R component: a red value duty cycle representing the currently detected banknote surface;
Banknote G component: a green value duty cycle representing the current detected banknote surface;
Banknote B component: a blue value duty cycle representing the currently detected banknote surface;
The multichannel sensing element (3) is interactively connected with the main control module (1), the multichannel sensing element (3) comprises a photodiode (4) and an LED multi-color light source plate (5), and the multichannel sensing element (3) is arranged in a multichannel sensing element box (9);
The multichannel sensing element box (9) comprises a storage box body (901) and a packaging back shell (902), one side of the storage box body (901) is provided with a plurality of collection windows (903), the collection windows (903) are provided with a retention frame (906), and the multichannel sensing element (3) is connected with the collection windows (903) through the retention frame (906);
the main control module (1) comprises a chip controller (6), a modulation circuit module (7) and a feedback display module (8), and the chip controller (6) comprises an information acquisition module (601), an information transmission module (602) and an information processing module (603);
Information acquisition module (601): the operation data of various mechanisms inside the instrument can be collected;
Information transfer module (602): other discrimination elements responsible for uploading the detection structure to the interior of the instrument;
information processing module (603): the collected data can be analyzed and calculated;
The storage box body (901) is connected with the packaging back shell (902) through screws, an element mounting groove (904) is formed in the storage box body (901), a banknote twisting frame (905) is arranged below one side of the storage box body (901), and the banknote twisting frame (905) and the storage box body (901) are arranged into an integrated structure;
An integrated shell (301) is arranged on the outer side of the multichannel sensing element (3), the photodiode (4) and the LED multi-color light source plate (5) are connected with the integrated shell (301) through screws, a data circuit (302) is arranged at one end of the integrated shell (301), and the data circuit (302) is electrically connected with the photodiode (4) and the LED multi-color light source plate (5);
The LED multi-color light source board is characterized in that a lamp bead distribution board surface (501) is arranged on the outer surface of the LED multi-color light source board (5), the lamp bead distribution board surface (501) is electrically connected with the LED multi-color light source board (5), a color mixing pin (502) is arranged on one side of the LED multi-color light source board (5), and a plurality of color mixing pins (502) are arranged;
an optical lens (402) is arranged at one end of the photodiode (4), the optical lens (402) is connected with the photodiode (4) in a combined mode, an RGB output port (401) is arranged on one side of the photodiode (4), and the number of the RGB output ports (401) is four;
The other end of the photodiode (4) is provided with a power port (403), and the power port (403) is electrically connected with the photodiode (4).
2. The application method of the RGB color recognition system for banknote checking and anti-counterfeiting is realized based on the RGB color recognition system for banknote checking and anti-counterfeiting of claim 1, and comprises the following steps:
Step one: the multi-channel sensing element (3) is arranged in a corresponding multi-channel sensing element box (9), then the multi-channel sensing element box (9) is fixed above a banknote inlet of the banknote tester, the banknote is put into the banknote inlet, and the banknote tester drives the banknote to send and count;
Step two: in the process of feeding and twisting the paper money, a photodiode (4) and an LED polychromatic light source plate (5) on the multichannel sensing element (3) can collect color values on each paper money, firstly, a light source is irradiated on the front side and the back side of the paper money by the LED polychromatic light source plate (5), and the light source irradiated on the paper money can be reflected to the photodiode (4);
Step three: after the reflected tristimulus values are collected, color detection is realized by measuring three primary colors forming object colors, RGB three primary colors of the paper currency to be identified are collected and parameterized, and then the parameterized data of the paper currency to be identified and the parameterized data of the paper currency bill database are subjected to discriminant analysis, so that the denomination and the authenticity of the paper currency to be detected can be obtained.
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| CN207164880U (en) * | 2017-08-31 | 2018-03-30 | 兰州工业学院 | A kind of new type paper currency taxonomic revision device |
| CN108074317A (en) * | 2018-02-05 | 2018-05-25 | 浙江然鹏电子有限公司 | A kind of currency counting and detecting machine and its control system for examining bank note color |
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| CN102968846A (en) * | 2012-11-16 | 2013-03-13 | 北京兆维电子(集团)有限责任公司 | Paper money anti-counterfeit identifying device |
| CN107784729A (en) * | 2016-08-24 | 2018-03-09 | 北京新岸线软件科技有限公司 | A kind of paper money discrimination method based on honorable optically variable anti-counterfeiting feature |
| CN107527423B (en) * | 2017-08-03 | 2019-12-06 | 深圳怡化电脑股份有限公司 | Paper money anti-counterfeiting identification method and paper money identification device |
| CN112530078A (en) * | 2020-11-25 | 2021-03-19 | 广东互动电子网络媒体有限公司 | Multi-currency paper money recognition device and recognition method based on big data |
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| CN207164880U (en) * | 2017-08-31 | 2018-03-30 | 兰州工业学院 | A kind of new type paper currency taxonomic revision device |
| CN108074317A (en) * | 2018-02-05 | 2018-05-25 | 浙江然鹏电子有限公司 | A kind of currency counting and detecting machine and its control system for examining bank note color |
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