CN202142123U - Bank note/ bill discriminating device - Google Patents
Bank note/ bill discriminating device Download PDFInfo
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- CN202142123U CN202142123U CN201120235245U CN201120235245U CN202142123U CN 202142123 U CN202142123 U CN 202142123U CN 201120235245 U CN201120235245 U CN 201120235245U CN 201120235245 U CN201120235245 U CN 201120235245U CN 202142123 U CN202142123 U CN 202142123U
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- infrared
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- bank note
- bill
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Abstract
The utility model belongs to the optics application technology field and discloses a bank-note/ bill discriminating device. The bank note/ bill discriminating device comprises an infrared transmitted light source and/ or an infrared reflection light source, a transmitted light control switch connected with the infrared transmitted light source and / or a reflected light control switch connected with the infrared reflection light source, an image sensor, an optics lens which is used for imaging the light of the infrared transmitted light source transmitted by the to-be-detected sample or the light of the infrared reflected light source reflected by the to-be-detected sample upon the image sensor, a computer connected with the image sensor, and a display connected with the computer. The bank-note/ bill discriminating device carries out infrared imaging of the to-be-detected sample via the infrared reflection and transmitted light source and the image sensor, thus to generate an anti-counterfeiting feature of the to-be-detected sample which can not be noticed under visible light. Combined with a display, the bank-note/ bill discriminating device allows users to detect the difference between the true and false bank notes in a real time manner, thereby realizing the objective of anti-counterfeiting and improving the false-distinguishing reliability to some degree.
Description
Technical field
The utility model relates to the optical applications technical field, more particularly, relates to a kind of false-identifying device based on infrared imagery technique, is applicable to the false distinguishing of bank note or bill.
Background technology
Like the false distinguishing of article such as bank note, bill is that inherent characteristic through test sample distinguishes truth from false.Traditional authentication detection technology is after having experienced first generation fluorescence authentication detection technology (1900), second generation magnetic ink authentication detection technology (1996), third generation safety line detection technique (2002), and its false distinguishing confidence level faces severe challenge.
With Renminbi is example; The various counterfeit money emulation degree that occur at present are increasingly high; Particularly artificial anti-fake mark major part is grasped by the fake producer, if only depend on the true and false of Ultraluminescence reaction, magnetic ink and the security of identification bank note to judge the true and false of bank note, reliability certainly will be had a greatly reduced quality.
The utility model content
The utility model technical matters to be solved is to provide the false-identifying device of a kind of bank note or bill, is intended to realize that the higher false distinguishing means of reliability realize the false distinguishing to bank note, bill etc.
For solving the problems of the technologies described above, the technical scheme of the utility model is: the false-identifying device of a kind of bank note or bill is provided, comprises:
Infrared transmission light source and/or infrared external reflection light source;
Transmitted light CS that is connected with said infrared transmission light source and/or the reflected light control switch that is connected with said infrared external reflection light source;
Imageing sensor;
The optical lens of image formation by rays on said imageing sensor with the said infrared external reflection light source of the light of the said infrared transmission light source of sample transmission to be identified or sample to be identified reflection;
The computing machine that is connected with said imageing sensor;
The display that is connected with said computing machine.
Further, said infrared transmission light source and/or infrared external reflection light source, said imageing sensor, said optical lens place a camera bellows.
Further, said camera bellows bottom is provided with an objective table, and said infrared transmission light source is installed in the bottom of said objective table, and said objective table is provided with the grip block that is used for clamping sample to be identified.
Further, said grip block is an acrylic board.
Further, said infrared external reflection light source is an infrared LED array luminescence unit.
Further; Said infrared transmission light source comprise one be printed on the diffusion site LGP, be arranged on the infrared light supply on the side of said LGP; Be pasted with total reflection film at the upper surface of said LGP corresponding to the position of said infrared light supply, the upper surface of the said LGP position except that last total reflection film at least is pasted with diffusion barrier; Lower surface at said LGP is pasted with total reflection film down.
Further, said upward total reflection film is the aluminium film, and the part that following total reflection film is corresponding with said infrared light supply at least is the aluminium film.
Further, on said LGP, near the size of the diffusion site of said infrared light supply less than size away from the diffusion site of said infrared light supply.
Further, on said LGP, near the density of the diffusion site of said infrared light supply less than density away from the diffusion site of said infrared light supply.
Further, said infrared light supply comprises some infrared LED lamps; The side of said LGP is provided with some depressed parts; Said some infrared LED lamps correspondence one by one are located in said some depressed parts.
The utility model considers that bank note becomes colored complete pattern under white light, and in the bank note under the infrared imaging a lot of unique phenomenon is arranged, for example relief pattern, one black one light phenomenons such as imperfect pattern.The characteristic of can't see under these white lights makes the infrared image false distinguishing in various bank note false distinguishings field special advantages arranged.Therefore the false-identifying device of the bank note that provides of the utility model or bill is through carrying out infrared imaging with infrared external reflection, transmitted light source and imageing sensor to sample to be identified; To produce the anti-counterfeiting characteristic that sample to be identified can't see under visible light; Combine display real-time monitored to go out the difference between the true and false bank note again; Whole device imaging arrangement is simple, the infrared image abundant information; Can satisfy the requirement of bank note and other bill false distinguishings, reach false proof purpose, improve the false distinguishing reliability to a certain extent with these means.
Description of drawings
Fig. 1 is the bank note that provides of the utility model or the false-identifying device of bill;
Fig. 2 is the synoptic diagram of the infrared transmission light source shown in Fig. 1.
Embodiment
In order to make the utility model technical matters to be solved, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Infrared ray is to be arranged in the outer light of visible light red light, is a kind of light invisible to the human eye, and in electromagnetic wave spectrum, wavelength coverage is that the zone of 0.7-1000 μ m is called infrared spectral region, and corresponding frequency range is roughly 4 * 10
14-3 * 10
11HZ.Infrared radiation be divided near infrared, in infrared, mid and far infrared, 4 zones of far infrared, near visible light is the near-infrared region.And the light source of the false-identifying device that the utility model provided promptly adopts near-infrared band.
The kind of infrared light supply has a lot, and commonly used mainly contains: electric heating light source (like incandescent lamp), glow discharge spot lamp (like high pressure xenon lamp), semiconductor light sources (like light emitting diode) and infrared laser light source (like GaAs laser diode) etc.Incandescent lamp makes it to reach incandescent state and luminous with the electric current heat filament, and its maximum weak point is to include the visible light composition, promptly has red cruelly, and serviceable life is shorter simultaneously.Xenon lamp is to produce a kind of power light source that infrared radiation is made when utilizing the discharge of gases at high pressure xenon, is a kind of heavy current arc discharge lamp, and its distribution approaches solar spectrum.LASER Light Source has advantages such as monochromaticity, directivity, high strength property is good.Consider cost and result of use, this false-identifying device has adopted the infrared LED array luminescence unit as the infrared external reflection light source, and the combination of infrared light supply and the LGP that is printed on the diffusion site is as the infrared transmission light source.These two kinds of infrared light supplies have guaranteed light intensity, and make illumination even, certainly, can adopt the infrared external reflection light source separately during practical implementation, also can adopt the infrared transmission light source separately, can also adopt infrared external reflection light source and infrared transmission light source simultaneously.
Consider from formation method, obtain near-infrared image and mainly use dual mode: transmission imaging and catoptric imaging.Transmission imaging (wavelength is generally at 700-1100nm) is meant testing sample placed imaging between light source and the detecting device, detecting device detects be transmitted light or interact with sample molecule after light.Catoptric imaging is the same side that detecting device and light source is placed sample, and it is the light that sample reflects in every way that detecting device detects what detected.Specific to bank note and bill; The transmitted light intensity of bank note and bill and its surperficial absorption coefficient, thickness are relevant with reflection coefficient; Since the severity (especially bank note) of production technology, the thickness strict conformance of bank note and bill, and the material of paper is highly stable simultaneously; But because the pattern on bank note and the bill surface is various, the printing ink on the pattern is also different to infrared absorptivity.Therefore the light intensity of transmission and reflection is different.Bank note becomes colored complete pattern with bill under white light, and in bank note under infrared and the bill imaging a lot of unique phenomenon is arranged: 1) relief pattern; 2) one black one light imperfect pattern.The characteristic of can't see under these white lights makes the infrared image false distinguishing at various bank note and bill false distinguishing field special advantages arranged.Reach false proof purpose with these means.
Please with reference to Fig. 1; The false-identifying device that the utility model provides comprises infrared transmission light source 2 and/or infrared external reflection light source 5, imageing sensor 6, optical lens 7, computing machine and display 8; Wherein, Infrared transmission light source 2 is connected with a transmitted light CS (not shown), is used to control the switch of infrared transmission light source 2, and infrared external reflection light source 5 is connected with reflected light control switch (not shown); During concrete work, transmitted light CS and reflected light control switch control infrared transmission light source 2 are successively worked with infrared external reflection light source 5.The light of infrared transmission light source 2 outgoing by sample to be identified (bank note or bill) transmission effect after outgoing to optical lens 7; The light of infrared external reflection light source 5 outgoing by sample to be identified (bank note or bill) emission effect after also outgoing to optical lens 7; These transmitted rays and reflection ray all carry sample message; The image formation by rays of infrared external reflection light source 5 of light or sample to be identified reflection that optical lens 7 is used for the infrared transmission light source 2 of sample transmission just to be identified is converted into the electric signal that comprises image information by imageing sensor 6 on imageing sensor 6; Imageing sensor 6 transfers to connected computing machine with the image information that collects; Computing machine further shows by artificial judgment whether pseudo-sample is arranged again through display.Certainly; The also image of storage standards sample in computing machine in advance after the image of the sample to be identified that will be collected by computing machine then, is compared through the image of software program and standard model; Realize automatic false distinguishing; Wherein imageing sensor 6 can pass through realizations such as CCD (Charge Coupled Device, charge-coupled image sensor) imageing sensor, CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor (CMOS)) sensor.
Consider that ambient light possibly can't photograph the image under infrared when strong, must design a camera bellows 4, infrared transmission light source 2 and/or infrared external reflection light source 5, imageing sensor 6, optical lens 7 are placed this camera bellows 4 for fear of the interference of visible light.
Simultaneously, the installation that this camera bellows 4 also can be light source and sample to be identified facilitates, and for example establishes an objective table 1 in camera bellows 4 bottoms; Infrared transmission light source 2 is installed in the bottom of this objective table 1; Objective table 1 is provided with the grip block 3 that is used for clamping sample to be identified, and grip block 3 is used for fixing sample to be identified, guarantees the sample formation state; The material of grip block 3 must have good light transmittance in addition; Can not influence the radiation response of system's infrared light supply, can guarantee the quality of images acquired, for example can adopt acrylic board to realize.Because the infrared transmission light source need be installed in camera bellows 3 bottoms, and the sample grip block to be fixed on certain altitude and can to take out eaily be the major issue that a needs solves.So objective table 1 is made up of two parts up and down, the lower part is fixed on bottom the magazine, and lower space is used to install infrared LGP and white light transmitted light source, and the top intermediate throughholes partly is used to install retainer panel.
Camera bellows 4 and objective table 1 are processed into by wooden splint, are to be convenient to process with the benefit of wood materials, make things convenient for the installation of light source simultaneously.Grip block 3 is made by two acrylic boards up and down.Infrared external reflection light source 5 can select for use plurality of infrared to form luminous matrix, and single led electric current is 20mA, and centre wavelength is 850nm, and the arrowband distributes, the about 40nm of half-peak bandwidth, but be the spectral range of common camera sensitization.
The structure of infrared transmission light source 2 is as shown in Figure 2; Form by diffusion barrier 21, diffusion site 22, LGP 23, last total reflection film 24, infrared light supply 25 and following total reflection film 26; Wherein LGP 23 can be processed by acrylic glass; Diffusion site 22 is the high reflectance ink lattice point structure of the bottom surface that is printed on LGP 23, and last total reflection film 24 is pasted on the upper surface of LGP 23 and corresponding with the position of infrared light supply 25, and the upper surface that diffusion barrier 21 then sticks on LGP 23 is the position except that last total reflection film 24 at least; Certainly also can diffusion barrier be covered to the position at total reflection film 24 places, following total reflection film 26 is pasted on the lower surface of LGP 23.
The course of work of infrared transmission light source 2 is described below: the light that the LED lamp sends is to the four sides scattering; But because the interreflection effect of last total reflection film 24; The final most of light of its light to LGP 23 upper and lower surface scatterings is injected LGP 23 from the side, and light gets into LGP 23 and gets to 22 last times of diffusion site scattering process will take place, and it makes all directions propagation of light to LGP 23; When the angle of light during less than the critical angle of total reflection, light will be from LGP 23 upper surface outgoing.Owing to design for a short time and thin, away from designing greatly and close in the part diffusion site 22 of light source, so light can be evenly distributed in LGP 23 surfaces near the Lights section diffusion site 22.Simultaneously, because the effect of the diffusion barrier 21 of upper surface, the emergent ray atomizing that becomes, it is poor to have reduced light and shade, has improved the uniformity coefficient of emergent light.The effect of the following total reflection film 26 below the LGP 23 is with the light that penetrates from LGP 23 lower surfaces reflected back LGP 23 again, improves the utilization factor of luminous energy, makes output intensity bigger.
In the present embodiment; Consider total reflection film 24 and following total reflection film 26 roles; With adopting reflective qualities higher aluminum films to realize with infrared light supply 25 corresponding parts at least in last total reflection film 24 and the following total reflection film 26, the remainder of following total reflection film 26 then adopts the comparatively cheap total reflection film of other cost to realize getting final product.
This false-identifying device utilizes the infrared spectrogram of true and false sample that significant difference is arranged through various bank note and bill are carried out infrared transmission and/or catoptric imaging, carries out the false distinguishing of bank note or bill, and imaging arrangement is simple, the infrared image abundant information, and the false distinguishing reliability is high.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. the false-identifying device of bank note or bill is characterized in that, comprising:
Infrared transmission light source and/or infrared external reflection light source;
Transmitted light CS that is connected with said infrared transmission light source and/or the reflected light control switch that is connected with said infrared external reflection light source;
Imageing sensor;
The optical lens of image formation by rays on said imageing sensor with the said infrared external reflection light source of the light of the said infrared transmission light source of sample transmission to be identified or sample to be identified reflection;
The computing machine that is connected with said imageing sensor;
The display that is connected with said computing machine.
2. the false-identifying device of bank note as claimed in claim 1 or bill is characterized in that, said infrared transmission light source and/or infrared external reflection light source, said imageing sensor, said optical lens place a camera bellows.
3. the false-identifying device of bank note as claimed in claim 2 or bill is characterized in that, said camera bellows bottom is provided with an objective table, and said infrared transmission light source is installed in the bottom of said objective table, and said objective table is provided with the grip block that is used for clamping sample to be identified.
4. the false-identifying device of bank note as claimed in claim 3 or bill is characterized in that, said grip block is an acrylic board.
5. the false-identifying device of bank note as claimed in claim 1 or bill is characterized in that, said infrared external reflection light source is an infrared LED array luminescence unit.
6. the false-identifying device of bank note as claimed in claim 1 or bill; It is characterized in that; Said infrared transmission light source comprise one be printed on the diffusion site LGP, be arranged on the infrared light supply on the side of said LGP; Be pasted with total reflection film at the upper surface of said LGP corresponding to the position of said infrared light supply, the upper surface of the said LGP position except that last total reflection film at least is pasted with diffusion barrier; Lower surface at said LGP is pasted with total reflection film down.
7. the false-identifying device of bank note as claimed in claim 6 or bill is characterized in that, said upward total reflection film is the aluminium film, and the part that following total reflection film is corresponding with said infrared light supply at least is the aluminium film.
8. the false-identifying device of bank note as claimed in claim 6 or bill is characterized in that, on said LGP, near the size of the diffusion site of said infrared light supply less than size away from the diffusion site of said infrared light supply.
9. the false-identifying device of bank note as claimed in claim 6 or bill is characterized in that, on said LGP, near the density of the diffusion site of said infrared light supply less than density away from the diffusion site of said infrared light supply.
10. the false-identifying device of bank note as claimed in claim 6 or bill is characterized in that, said infrared light supply comprises some infrared LED lamps; The side of said LGP is provided with some depressed parts; Said some infrared LED lamps correspondence one by one are located in said some depressed parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235245U CN202142123U (en) | 2011-07-05 | 2011-07-05 | Bank note/ bill discriminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235245U CN202142123U (en) | 2011-07-05 | 2011-07-05 | Bank note/ bill discriminating device |
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|---|---|
| CN202142123U true CN202142123U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120235245U Expired - Fee Related CN202142123U (en) | 2011-07-05 | 2011-07-05 | Bank note/ bill discriminating device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568550A (en) * | 2012-07-20 | 2014-02-12 | 小森公司 | Inspection apparatus for sheet |
| CN103702021A (en) * | 2013-12-29 | 2014-04-02 | 广州视声电子科技有限公司 | Currency detection camera |
| CN104299313A (en) * | 2014-11-04 | 2015-01-21 | 浙江大学 | Paper money identification method, device and system |
| CN104464077A (en) * | 2014-11-12 | 2015-03-25 | 迪堡金融设备有限公司 | Identification method and device for paper currency prefix code |
| US20150348350A1 (en) * | 2014-05-29 | 2015-12-03 | Ncr Corporation | Currency validation |
| CN106233341A (en) * | 2014-05-13 | 2016-12-14 | 冲电气工业株式会社 | Identification device and medium transaction device |
| CN106340117A (en) * | 2016-09-28 | 2017-01-18 | 苏州格兰斯柯光电科技有限公司 | Light-sensing currency detector for multi-face value banknotes |
| CN106447900A (en) * | 2016-10-14 | 2017-02-22 | 苏州维融商用设备有限公司 | Reflection-type authenticity identification device |
| CN106875545A (en) * | 2017-03-01 | 2017-06-20 | 深圳怡化电脑股份有限公司 | The discrimination method and device of a kind of bank note |
| CN107615302A (en) * | 2015-03-03 | 2018-01-19 | 迪堡多富公司 | Predefined text data is read from paper |
| CN109118950A (en) * | 2018-10-10 | 2019-01-01 | 苏州征之魂专利技术服务有限公司 | A kind of information anti-fake light breaking device |
| CN109307971A (en) * | 2018-11-27 | 2019-02-05 | 陕西文投艺术品光谱科技有限公司 | A kind of painting and calligraphy identification lighting system of optical imaging system |
| CN112184984A (en) * | 2020-09-02 | 2021-01-05 | 敦南科技（无锡）有限公司 | Currency detector with adhesive tape detection function |
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2011
- 2011-07-05 CN CN201120235245U patent/CN202142123U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568550A (en) * | 2012-07-20 | 2014-02-12 | 小森公司 | Inspection apparatus for sheet |
| CN103702021A (en) * | 2013-12-29 | 2014-04-02 | 广州视声电子科技有限公司 | Currency detection camera |
| CN106233341B (en) * | 2014-05-13 | 2019-01-29 | 冲电气工业株式会社 | Identification device and medium transaction device |
| CN106233341A (en) * | 2014-05-13 | 2016-12-14 | 冲电气工业株式会社 | Identification device and medium transaction device |
| US20150348350A1 (en) * | 2014-05-29 | 2015-12-03 | Ncr Corporation | Currency validation |
| CN105225338A (en) * | 2014-05-29 | 2016-01-06 | Ncr公司 | Currency examine |
| US10762736B2 (en) * | 2014-05-29 | 2020-09-01 | Ncr Corporation | Currency validation |
| US10325435B2 (en) | 2014-05-29 | 2019-06-18 | Ncr Corporation | Currency validation |
| CN104299313A (en) * | 2014-11-04 | 2015-01-21 | 浙江大学 | Paper money identification method, device and system |
| CN104464077A (en) * | 2014-11-12 | 2015-03-25 | 迪堡金融设备有限公司 | Identification method and device for paper currency prefix code |
| CN107615302A (en) * | 2015-03-03 | 2018-01-19 | 迪堡多富公司 | Predefined text data is read from paper |
| CN106340117A (en) * | 2016-09-28 | 2017-01-18 | 苏州格兰斯柯光电科技有限公司 | Light-sensing currency detector for multi-face value banknotes |
| CN106447900A (en) * | 2016-10-14 | 2017-02-22 | 苏州维融商用设备有限公司 | Reflection-type authenticity identification device |
| CN106875545B (en) * | 2017-03-01 | 2019-12-10 | 深圳怡化电脑股份有限公司 | Method and device for identifying paper money |
| CN106875545A (en) * | 2017-03-01 | 2017-06-20 | 深圳怡化电脑股份有限公司 | The discrimination method and device of a kind of bank note |
| CN109118950A (en) * | 2018-10-10 | 2019-01-01 | 苏州征之魂专利技术服务有限公司 | A kind of information anti-fake light breaking device |
| CN109307971A (en) * | 2018-11-27 | 2019-02-05 | 陕西文投艺术品光谱科技有限公司 | A kind of painting and calligraphy identification lighting system of optical imaging system |
| CN112184984A (en) * | 2020-09-02 | 2021-01-05 | 敦南科技（无锡）有限公司 | Currency detector with adhesive tape detection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20140705 |
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| EXPY | Termination of patent right or utility model |