CN202217339U - Counterfeit detection and number recognition device for paper money - Google Patents
Counterfeit detection and number recognition device for paper money Download PDFInfo
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- CN202217339U CN202217339U CN2011203899764U CN201120389976U CN202217339U CN 202217339 U CN202217339 U CN 202217339U CN 2011203899764 U CN2011203899764 U CN 2011203899764U CN 201120389976 U CN201120389976 U CN 201120389976U CN 202217339 U CN202217339 U CN 202217339U
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Abstract
The utility model discloses a counterfeit detection and number recognition device for paper money. The device is used in the technical field of paper money identification and comprises a DSP (digital signal processor) module, a first image collecting and processing part and a second image collecting and processing part, wherein the first image collecting and processing part and the second image collecting and processing part are in telecommunication connection with the DSP module and send a collected paper money image and collected images of the front and the back of the paper money to the DSP module for synchronous counterfeit detection and number recognition. According to the utility model, two random access memories are also adopted in the second image collecting and processing part so as to realize a two-frame alternating structure of the image data memory, so that the collection and processing, i.e., the counterfeit detection and the number recognition of the paper money can be carried out synchronously, and the efficiency of collecting and processing data is improved.
Description
Technical field
The utility model relates to a kind of bank note authentication technique field, relates in particular to a kind of bank note false distinguishing and NID number identifier.
Background technology
Bank note is the principal mode of universal equivalent on the market, and it plays irreplaceable effect in socio-economic activity.Many major crimes are relevant with cash mostly, as plundering, kidnap, make counterfeit money etc.If case-involving bank note can be identified in market circulation, with the generation that suppresses above-mentioned case to a certain extent.For example for the bank note of being plundered, a solution is the number of each pack of paper coin of record, and the number of paper money that will be plundered is set up a database.A kind of number of paper money automatic identification equipment is provided in money flow market; Such as combine with paper money counter; Currency number recognition data and quilt are plundered number database relatively,, just can confirm the coin of coin that circulates at present for being plundered in case there is duplicate numbers to occur; Thereby limit its circulation, assist the detection of robbery.In addition, now the counterfeit money fidelity made of counterfeit money group is increasingly high, like the high imitative counterfeit money of HD90 a lot of existing cash inspecting machines of just having out-tricked.But because the uniqueness of number of paper money, the number through on the identification bank note can help to discern counterfeit money.
Differentiate that with banknote maximally related anti-counterfeiting technology type comprises magnetic ink, safety line, bar code, color shifting ink, fluorescent ink, watermark, hologram image, micro printing etc.Technology such as magnetic ink, bar code, fluorescent ink wherein because the time that occurs is very long and be easy to copy, already by utilization that the fakement making person grasps, have lost the reliability and security of differentiating counterfeit money.And, just becoming more and more important banknote authentication technique, by the false proof industry in future is served such as technology such as watermark, hologram image, color shifting ink, micro printings.This just needs a kind ofly can discern number of paper money and device that can the identification note true and false.
The utility model content
The purpose of the utility model provides a kind of bank note false distinguishing and NID number identifier, can be installed in the device of financial institutions such as cash inspecting machine or ATM instant identification number of paper money when false distinguishing is carried out in counting.
The purpose of the utility model also is the number of paper money record is stored, and adopts two random access memory, has realized two frame rotation structures of image data storage, improves the number recognition speed.
In order to achieve the above object, the utility model provides a kind of bank note false distinguishing and NID number identifier, said device comprises DSP module and first image acquisition and processing part, the second image acquisition and processing part that are connected with said DSP module difference telecommunications, wherein,
Said first image acquisition and processing part and the second image acquisition and processing part are sent to the banknote image that collects and bank note pros and cons image that said DSP module is carried out synchronous false distinguishing and number is discerned respectively.
Preferably implement as one, said first image acquisition and processing partly comprises the CMOS module, and said CMOS module is used under infrared and/or ultraviolet source, obtaining banknote image, and image is sent to the DSP module carries out false distinguishing.
Preferably implement as one, said second image acquisition and processing partly comprises:
The CIS module, said CIS module is connected with the CPLD modular telecommunications, is used to gather bank note pros and cons picture signal;
Said CPLD module is connected with said DSP modular telecommunications, is used for said pros and cons image is optimized, rectifies a deviation and splices, and is sent to the DSP module and carries out number identification;
Bus handover module, said bus handover module are connected with said CPLD modular telecommunications with said DSP module respectively;
At least one random access memory, said random access memory is connected with said bus handover module telecommunications.
Preferably implement as one, comprise two random access memory in said second image acquisition and processing part, said two random access memory are connected with said bus handover module telecommunications respectively.
Preferably implement as one; Said second image acquisition and processing part comprises that also a differential amplifier and is serially connected with the A/D converter of said differential amplifier; Said differential amplifier is connected in said CIS module, and said A/D converter is connected in said CPLD module.
Preferably implement as one, said DSP module also connects a display screen, and said display screen is used to show the number of paper money recognition result.
With respect to existing number of paper money recognition device; The utility model partly carries out the bank note false distinguishing except adopting first image acquisition and processing; Also adopt second image acquisition and processing partly to carry out number of paper money identification, and in second image acquisition and processing part, adopted two random access memory, realized two frame rotation structures of image data storage; When the CPLD module when random access memory ram 1 is write a two field picture; The DSP module reads another two field picture to random access memory ram 2, writes full and random access memory ram 2 when running through when random access memory ram 1, is switched each other by CPLD module controls read-write bus; Continued to write next two field picture to random access memory ram 2 by the CPLD module, the DSP module reads the former frame image to memory RAM 1.Make collection and processing to carry out simultaneously through the method for designing that adopts this two frames to rotate, improved the efficient of data acquisition and processing (DAP).
Description of drawings
Through the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.
Fig. 1 is the utility model embodiment bank note false distinguishing and NID number identifier structured flowchart;
Fig. 2 is the structured flowchart of another kind of bank note false distinguishing of the utility model embodiment and NID number identifier.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
As shown in Figure 1, Fig. 1 is the utility model general structure block diagram.The bank note false distinguishing and the NID number identifier of the utility model; It is except comprising DSP module (digital signal processor; Digital signal processor) and the first image acquisition and processing part that is connected with said DSP modular telecommunications; Also comprise one second image acquisition and processing part, said second image acquisition and processing part is connected with said DSP modular telecommunications, is used to realize number of paper money identification.
Wherein, the DSP module can adopt the CL9000 master chip of CORLOGIC.
Said first image acquisition and processing part can be for based on CMOS (ComplementaryMetal-Oxide-Semiconductor, complementary metal oxide semiconductor (CMOS)) camera.
In order to show the number of paper money recognition result, the DSP module of bank note false distinguishing and NID number identifier can also connect a display screen, and this display screen can be LCD (Liquid Crystal Display, a LCDs).
As shown in Figure 2, Fig. 2 is the structured flowchart of the utility model one specific embodiment.First image acquisition and processing of bank note false distinguishing and NID number identifier partly comprises the CMOS module, and this CMOS module is used under infrared and/or ultraviolet source, obtaining image, and the image that collects is sent to the DSP module carries out false distinguishing.
The CMOS module can be regarded as the digital picture camera, connects the sequential interface circuit of DSP through 8 bit data parallel data lines, combines with the DSP module, thereby can carry out efficiently banknote, the high speed real and fake discrimination.The CMOS module not only can be tested out rudimentary forgery, for example whether variable color, and can also accurately analyze the variable color degree, discern senior forgery.
Second image acquisition and processing of bank note false distinguishing and NID number identifier partly comprises:
CIS module (Contact image sensor; Contact-type image sensor), said CIS module is connected with said CPLD modular telecommunications, is used for the images acquired signal; Wherein, A kind of imageing sensor that contact-type image sensor is made up of the row parts such as photoelectric sensing array, LED source array and column lens array identical with the scan manuscript width, here, contact-type image sensor CIS module can adopt C2R2166289;
CPLD module (Complex Programmable Logic Device; CPLD); Be connected with said DSP modular telecommunications; The CPLD module is as the core component of the utility model, and the main sequential of being responsible for accomplishing the CIS module drives, the control of A/D converter and the control that real-time optimization, image correcting error, image mosaic, bus are switched, the generation of address, the storage of data and with the functions such as coordination of dsp processor;
The bus handover module is connected with said CPLD module difference telecommunications with said DSP module, is used for realizing two frame rotation structures of image data storage:
When the CPLD module when random access memory ram 1 is write a two field picture; The DSP module reads another two field picture to random access memory ram 2; When random access memory ram 1 is write full and random access memory ram 2 when running through; Switched each other by CPLD module controls read-write bus, continued to write next two field picture to random access memory ram 2 by the CPLD module, the DSP module reads the former frame image to memory RAM 1; The method for designing that adopts this two frames to rotate makes to be gathered and handles and can carry out simultaneously, has improved the efficient of data acquisition and processing (DAP);
At least one random access memory, said random access memory is connected with said bus handover module telecommunications;
Preferably, comprise two random access memory in said second image acquisition and processing part, said two random access memory are connected with said bus handover module telecommunications respectively.
Further; Second image acquisition and processing part of bank note false distinguishing and NID number identifier comprises that also a differential amplifier and is serially connected with the A/D converter (Analog/Digital of said differential amplifier; Analog/digital), said differential amplifier is connected in said CIS module, and said A/D converter is connected in said CPLD module; Preferably, A/D converter can adopt TLC5510.
Among the utility model embodiment; The CIS module is exported with the form of analog voltage the gray-scale value of each pixel under the control of CPLD module through the serial-shift mode, after the electric signal of pixel carries out signal condition through differential amplifier again; By A/D converter with the analog signal conversion digital signal; Switching through bus realizes that the double memory area wheel changes jobs, and under the control of CPLD module, is temporarily stored in random access memory ram (random access memory with the digital signal after the conversion then; Random access memory) in, the parameter of synchronously controlling A/D converter in real time by the CPLD module obtains optimized image and image is done correction and splicing.
The image that the CMOS module obtains under infrared and ultraviolet source is directly passed to the DSP module and is carried out false distinguishing.Therefore, integrated contact-type image sensor CIS module and imageing sensor CMOS module in bank note false distinguishing and the NID number identifier obtain the pros and cons image of bank note by the CIS module, and the CMOS module obtains the image of bank note under infrared and ultraviolet source.These synchrodatas all are transferred to the DSP module of rear end, realize number identification and counterfeit identifying function by the DSP module.
False distinguishing of the utility model bank note and NID number identifier can be arranged on during finance such as paper money counter, cleaning-sorting machine, ATM are provided with; At any time the number of paper money that is passed through is noted through program storage, carried out infrared and false distinguishing ultraviolet source to bank note simultaneously.
In addition; Because false distinguishing of the utility model bank note and NID number identifier are provided with the external synchronization signal module; When paper money counter or cleaning-sorting machine work; Bank note is synchronoused working with this paper money counter or cleaning-sorting machine through number of paper money identification and false-identifying device, under when counting, storing the number of paper money record immediately, understands the people's that deposits and withdraws information easily through the number of bank note.Like this if this number counterfeit money number on record that is system log (SYSLOG); Or plunder, number of paper money that the injured party of kidnapping provides; Just can find the bank of this coin of storage through inquiry, thereby find depositor's information, the personnel in charge of the case provides important clue for public security.
It should be noted that; Above content is the further explain that combines concrete embodiment that the utility model is done; The embodiment that can not assert the utility model only limits to this; Under the above-mentioned guidance of the utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in the protection domain of the utility model.
Claims (6)
1. bank note false distinguishing and NID number identifier is characterized in that, said device comprise the DSP module and with said DSP module respectively first image acquisition and processing that is connected of telecommunications partly, the second image acquisition and processing part, wherein,
Said first image acquisition and processing part and the second image acquisition and processing part are sent to the banknote image that collects and bank note pros and cons image that said DSP module is carried out synchronous false distinguishing and number is discerned respectively.
2. bank note false distinguishing according to claim 1 and NID number identifier is characterized in that:
Said first image acquisition and processing partly comprises the CMOS module, and said CMOS module is used under infrared and/or ultraviolet source, obtaining banknote image, and image is sent to the DSP module carries out false distinguishing.
3. bank note false distinguishing according to claim 2 and NID number identifier is characterized in that, said second image acquisition and processing partly comprises:
The CIS module, said CIS module is connected with the CPLD modular telecommunications, is used to gather bank note pros and cons picture signal;
Said CPLD module is connected with said DSP modular telecommunications, is used for said pros and cons image is optimized, rectifies a deviation and splices, and is sent to the DSP module and carries out number identification;
Bus handover module, said bus handover module are connected with said CPLD modular telecommunications with said DSP module respectively;
At least one random access memory, said random access memory is connected with said bus handover module telecommunications.
4. bank note false distinguishing according to claim 3 and NID number identifier is characterized in that:
Comprise two random access memory in said second image acquisition and processing part, said two random access memory are connected with said bus handover module telecommunications respectively.
5. bank note false distinguishing according to claim 3 and NID number identifier is characterized in that:
Said second image acquisition and processing part comprises that also a differential amplifier and is serially connected with the A/D converter of said differential amplifier, and said differential amplifier is connected in said CIS module, and said A/D converter is connected in said CPLD module.
6. according to any described bank note false distinguishing and NID number identifier in the claim 1 to 5, it is characterized in that:
Said DSP module also connects a display screen, and said display screen is used to show the number of paper money recognition result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203899764U CN202217339U (en) | 2011-10-13 | 2011-10-13 | Counterfeit detection and number recognition device for paper money |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203899764U CN202217339U (en) | 2011-10-13 | 2011-10-13 | Counterfeit detection and number recognition device for paper money |
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| CN202217339U true CN202217339U (en) | 2012-05-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310528A (en) * | 2013-07-08 | 2013-09-18 | 广州广电运通金融电子股份有限公司 | Image compensation and correction method and banknote detection and identification device |
| CN103792234A (en) * | 2012-10-29 | 2014-05-14 | 昆山钞票纸业有限公司 | Reciprocating-motion banknote paper fluorescence fiber on-line detection device |
| CN104008602A (en) * | 2014-05-26 | 2014-08-27 | 昆山古鳌电子机械有限公司 | Paper money managing device for ATM machine |
| CN104063944A (en) * | 2014-06-13 | 2014-09-24 | 昆山古鳌电子机械有限公司 | Paper money processing device for ATM |
| CN104200562A (en) * | 2014-07-18 | 2014-12-10 | 浙江方泰电器有限公司 | Image acquisition and processing method and image acquisition and processing circuit for double-CIS paper money identifier |
-
2011
- 2011-10-13 CN CN2011203899764U patent/CN202217339U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792234A (en) * | 2012-10-29 | 2014-05-14 | 昆山钞票纸业有限公司 | Reciprocating-motion banknote paper fluorescence fiber on-line detection device |
| CN103792234B (en) * | 2012-10-29 | 2015-11-25 | 昆山钞票纸业有限公司 | Reciprocating motion type bank-note paper fluorescent fiber on-line measuring device |
| CN103310528A (en) * | 2013-07-08 | 2013-09-18 | 广州广电运通金融电子股份有限公司 | Image compensation and correction method and banknote detection and identification device |
| CN103310528B (en) * | 2013-07-08 | 2016-08-17 | 广州广电运通金融电子股份有限公司 | Image compensation modification method and identification banknote tester |
| US9685022B2 (en) | 2013-07-08 | 2017-06-20 | Grg Banking Equipment Co., Ltd. | Image compensation correction method and banknote recognition and detection device |
| CN104008602A (en) * | 2014-05-26 | 2014-08-27 | 昆山古鳌电子机械有限公司 | Paper money managing device for ATM machine |
| CN104063944A (en) * | 2014-06-13 | 2014-09-24 | 昆山古鳌电子机械有限公司 | Paper money processing device for ATM |
| CN104200562A (en) * | 2014-07-18 | 2014-12-10 | 浙江方泰电器有限公司 | Image acquisition and processing method and image acquisition and processing circuit for double-CIS paper money identifier |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20121013 |