CN206179071U - To having smooth counterfeit identification apparatus who becomes characteristic paper currency of luster - Google Patents
To having smooth counterfeit identification apparatus who becomes characteristic paper currency of luster Download PDFInfo
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- CN206179071U CN206179071U CN201620900308.6U CN201620900308U CN206179071U CN 206179071 U CN206179071 U CN 206179071U CN 201620900308 U CN201620900308 U CN 201620900308U CN 206179071 U CN206179071 U CN 206179071U
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Abstract
The utility model discloses an it is enough in the smooth characteristic that becomes of different angle principles of reflection detection luster to and detect the complementation based on the transmission principle and to yin tezheng, can detect two kinds of security feature simultaneously, and the mirror is pseudo - efficient, and the degree of accuracy is high, realizes with low costsly.
Description
Technical field
The utility model is related to image procossing and identification technology field, and in particular to the false distinguishing detection of a kind of bank note or bill
Device.
Background technology
With continuing to develop for national economy, RMB cash transaction amount constantly increases, and bank note is the people of China's distribution
The main currency of coin, plays very important effect in economic activity, lawless person's manufacture is also there is always and is circulated
Counterfeit money and technique of composite-RMB bank note, this very disruptive financial order and economic stability, damage the public interest of country.
In order to improve the azimuthal capability of banknote, paper false proof, ink is false proof and the anti-counterfeiting technology such as antiforge is continuous
Exploitation and improvement, in recent years, with continuing to develop for anti-counterfeiting technology, the production application of anti-counterfeiting technology product is also sent out rapidly
Exhibition.
One mode of the false distinguishing in financial machine and tool field is namely based on the banknote false distinguishing of color.In traditional paper money counter, sorting
The machine image detection equipment of detection in to(for) color characteristic is typically based on the catoptric imaging mode of CMOS/CIS/CCD, collects coloured silk
After color image, then detected with the mode of image procossing, corresponding equipment is also largely used.There is discoloration to imitate in anti-counterfeiting characteristic
There is the false proof point of fruit very strong anti-counterfeit capability, i.e. characteristic point to observe the different colors of presentation under a different angle；As light can
Sensitive ink, antiforge laser holographic etc..Therefore a kind of traditional natural mode is exactly to put CMOS/CIS/ in different angles
CCD or other adopt figure equipment, then synchronous acquisition image to the color of image feature for collecting extract point in systems
Analysis, reaches the effect of false distinguishing.Therefore to need to be directed in the mixed point of bank note because of bank note cause characteristic point towards difference each may go out
Existing position is installed multiple images collecting device and can just detect false proof point, and such hardware cost is of a relatively high.
The design of existing banknote identification system as shown in figure 1, subject matter be bank note towards it is different when, false distinguishing point
Test position is different, it is therefore necessary to which the collecting device laid in each test position can complete IMAQ, then sentence
Disconnected module can just be further processed.Therefore the problem that the detection for becoming color characteristic is certainly existed is hardware device quantity
Many, system cost is high, hardware circuit drives complicated complicated, mechanical realization, rigging up and debugging complexity, model machine to be difficult to commercialization etc.
Problems.The detection for for example changing colour for Optical Variable Ink, it usually needs install two IMAQs in front and side and set
Standby, so for that could complete whole image acquisition process towards being accomplished by 8 collecting devices in the case of mixed point, system is
Follow-up identification process can be completed.In this case, system architecture is complicated, and debugging difficulty is big etc., and problems necessarily occur.
Number of patent application is 2007101663473, and title " multi-angle optical characteristic automatic detection apparatus " is by introducing mirror
The mode in face, changes the optical environment of detection zone, practically equals to and changed in the case of not translation-angle light incidence
With the direction of reflection, so as to reach in two purposes of different angular optical features of same visual field observation but general is flat
Face mirror is formed in the rear electroplate of glass, because the reflecting effect of level crossing depends on the silver-plated effect of producer, and is plated
Silver and the inconsistency brought in imaging that easily comes off；Referring to Fig. 2, level crossing light multiple reflections into ghost image light path schematic diagram,
Wherein, S is object, and S1 is the main picture of object, and S2/S3 is the image of other reflections.The preceding surface of level crossing is glass surface
Reflection light, light will be by glass surface and silver-colored face multiple reflections, so image overlap, influence figure can be formed into multiple pictures
As the treatment of judge module.Imaging (main picture) wherein reflected by silver-colored face for the first time most bright, and other pictures are then increasingly
Secretly, although will not typically arouse attention, but for accurate optical instrument, such as camera, telescope, microscope equipment
In, these unnecessary pictures must be driven off, higher and higher for fraud level current, the original that the defect of optical system itself is caused
Rationality error also must go to except can be only achieved the optimal of system, so that for good basis is laid in the design and false distinguishing of product.
Utility model content
In view of this, the utility model provides a kind of for the false-identifying device for becoming feature bank note with light glory, including：
The invention discloses a kind of for the false-identifying device for becoming feature bank note with light glory, including：
Cash dispensing port；
Note input mouthful；
Transparent between cash dispensing port and note input mouthful send paper money passage；
In one first incident light source and a total reflection prism that the transparent side for sending paper money passage is set；
In the transparent opposite side for sending paper money passage, one second incident light source is set；
Positioned at the camera sent in paper money passage directly over region to be detected；
One image processing circuit, is connected with the camera；
One controlling switch, when reaching the area to be detected for sensing bank note, triggers first incident light source and institute
State the second incident light source to open in turn, and when light source is opened, trigger the camera collection image；
Wherein：
First incident light source is located at and send region oblique upper to be detected in paper money passage, is irradiated with a default angle of inclination
The region to be detected；
Second incident light source is located at the underface for sending area to be detected in paper money passage, area to be detected described in vertical irradiation；
The total reflection prism is located at first incident light source in the reflected light path on the region to be detected to described
Between the input path of camera.
It is preferred that when the controlling switch triggers the first incident light source unlatching, having on the camera collection bank note
There is light glory to become the position of characteristic.
It is preferred that when the controlling switch triggers the second incident light source unlatching, having on the camera collection bank note
There is the position of complementary pair on label to be patterned.
It is preferred that the angle of first incident light source and the area planar to be detected is between 40 degree to 50 degree.
It is preferred that the angle of the total reflection prism bottom surface and the area planar to be detected is between 70 degree to 80 degree.
It is preferred that described image process circuit is directly anti-in the region to be detected by relatively more described first incident light source
The imaging penetrated, through the imaging after total reflection prism reflection, judges whether to become special with light glory with first incident light source
Levy.
It is preferred that also including：
A beam-splitting board between the camera and the region to be detected is arranged at, the beam-splitting board enters to described first
Penetrating the light that light source sends carries out semi-transflective reflective.
It is preferred that the beam-splitting board presets angle with the area planar to be detected in one.
It is preferred that the incident light source is LED white lights.
It is preferred that the LED white lights add three wavelength white lights of fluorescent material, the colour cell of multi-chip type three to close for blue-ray LED
One of two kinds of white LED lamp.
The utility model advantage and effect：
1st, electroplate quality problems after original level crossing are eliminated using total reflection prism, and it is silver-plated hold it is caducous
Problem.
2nd, compared with the multiple reflections refractive power of level crossing constantly decays, using optical instruments such as such as total reflection prisms,
Light energy all reflects and goes out from prism, under identical illumination condition, will obtain more preferable image frame, is follow-up
Treatment brings advantage.
3rd, beam-splitting board is added between camera and bank note, the beam-splitting board carries out semi-transflective reflective to light, camera can
Image is gathered with through beam-splitting board；So equivalent to front light intensity is strengthened, the direct picture for photographing camera becomes apparent from,
Increase positive color effects, can further increase the aberration of direct picture and side image, be more prone to judge module
Differentiate the color-changing anti-counterfeit feature of bank note.
4th, can become characteristic and complementary pair on label to be patterned for light glory simultaneously carries out false distinguishing, and the degree of accuracy is high, efficiency high.
Figure of description
Fig. 1 is conventional banknotes color identification system design structure schematic diagram；
Fig. 2 is level crossing light multiple reflections into ghost image light path schematic diagram；
Fig. 3 is the system schematic of the utility model embodiment one；
Fig. 4 is the system schematic of the utility model embodiment two；
Fig. 5 is the false distinguishing workflow diagram of the utility model embodiment three.
Specific embodiment
【Embodiment one】
The utility model embodiment provides the false-identifying device of a kind of bank note or bill, as shown in figure 3, including：
Cash dispensing port 301；
Note input mouthful 302；
Transparent between cash dispensing port 301 and note input mouthfuls 302 send paper money passage 303；
In one first incident light source 304 and a total reflection prism 305 that the transparent side for sending paper money passage 303 is set；
In the transparent opposite side for sending paper money passage 303, one second incident light source 306 is set；
Positioned at the camera 308 sent in paper money passage 303 directly over region to be detected 307；
One image processing circuit 309, is connected with the camera 308；
One controlling switch 310, when reaching the area 307 to be detected for sensing bank note, triggers first incident light
Source 304 and second incident light source 306 are opened in turn, and when light source is opened, trigger the collection of camera 308 figure
Picture；
Wherein：
First incident light source 304 is located at and send the oblique upper of region to be detected 307 in paper money passage 303, default inclines with one
Rake angle irradiates the region to be detected 307；
Second incident light source 306 is located at and send the underface in area to be detected 307 in paper money passage 303, described in vertical irradiation
Area to be detected 307；
The total reflection prism 305 is located at first incident light source 304 in the reflected light on the region to be detected 307
Road is between the input path of the camera 308.
Wherein, when the first incident light source unlatching is triggered, on collection bank note there is light glory to become the position of characteristic.Example
Such as, 100 yuans of front right side opened window safety lines of the denomination of 2015 versions and positive Middle face numeral 100.
Wherein, when the second incident light source unlatching is triggered, there is the position of complementary pair on label to be patterned on collection bank note.
In one embodiment, it is 40 to set first incident light source 304 with the angle of the plane of region to be detected 307
Spend between 50 degree.
In one embodiment, set the bottom surface of total reflection prism 305 is with the angle of the plane of region to be detected 307
Between 70 degree to 80 degree.
In one embodiment, described image process circuit 309 is by comparing first incident light source 304 in described to be checked
The imaging surveyed after the imaging directly reflected in region 307 is reflected with first incident light source 304 through the total reflection prism 305,
Judge whether to become feature with light glory.
In one embodiment, the incident light source 304 is LED white lights.
In one embodiment, the LED white lights add three wavelength white lights, the multi-chip type three of fluorescent material for blue-ray LED
One of two kinds of white LED lamp that colour cell is closed.
When bank note is put into note input mouthful 302, during along sending paper money passage 303 to be transferred into region 307 to be detected, trigger first
The light beam that first incident light source 304 is launched is impinged upon on bank note, after light beam is launched on bank note, the total reflection prism
305 receive light source projects to reflected light produced on the bank note, and air is injected from glass more than light for 45 ° due to incidence angle
42 ° of critical angle, light can be totally reflected on prism bases, into injection on 90 degree of direction during finally along incidence, and not
Ghost image can be formed.
The height and angle of camera 308 cause in its field range simultaneously comprising the bank note on region to be detected 307 and
Picture of the bank note in total reflection prism 305, when bank note reaches region 307 to be detected, triggering camera 308 starts to shoot, and one
Two bank note glazing glories are contained in two field picture and becomes characteristic pattern；Afterwards, through 309 pairs of images for photographing of image processing circuit
A series of pretreatment, feature extraction, Threshold Analysis are carried out, final result is comprehensively obtained.The light glory that bank note has
Become characteristic pattern different with viewing angle, the color of this feature can change.
There is possible some bank note light glory to become the one side of the pattern in bank note of feature, and another side does not have, for example, 2015 editions
100 yuan of denomination RMB.When the pattern on just bank note with light glory change feature is in first incident light source 304 and is all-trans
When penetrating 305 side of prism, will detect that light glory becomes characteristic；But if there is bank note light glory to become the pattern of feature described
During the second 306 side of incident light source, it is impossible to detect light glory and become characteristic.Now, in order to improve false distinguishing efficiency and not increase hard
Part cost, not to bank note towards diversion treatments are done, does not also increase in opposite side and becomes the structure that feature is acquired to light glory,
But based on transmissison characteristic detection complementary pair seal puppet region, trigger first incident light source 304 and close, triggering described second
Incident light source 306 is opened, position of the collection with complementary pair on label to be patterned, afterwards, through 309 pairs of figures for photographing of image processing circuit
As carrying out a series of pretreatment, feature extraction, Threshold Analysis, final result is comprehensively obtained.
【Embodiment two】
As shown in figure 4, the present embodiment also includes relative to embodiment one：
A beam-splitting board 411, the beam-splitting board 411 are also set up between the camera 408 and the region to be detected 407
Semi-transflective reflective is carried out to the light that the first incident light source 404 sends.
Wherein, the beam-splitting board 411 is set with the plane in the region to be detected 407 in a default angle.
It is preferred that the beam-splitting board 411 should be located at immediately below the camera 408, with the height of the first incident light source 404 one
Cause, the beam-splitting board 411 is close to the one end of the first incident light source 404 higher than datum plane into 45 degree of angles, and the beam-splitting board 411 pair first enters
Penetrating the light that light source 404 sends carries out semi-transflective reflective；The camera 408 can gather image through beam-splitting board 411；By first
Incident light source 404 project light beam, after beam-splitting board 411 is shone, a part reflect, directive bank note, so equivalent to add
Strong front light intensity, the direct picture for photographing the camera 408 becomes apparent from, and increases positive color effects, Ke Yijin
One step increases the aberration of direct picture and side image, judge module is more prone to differentiate the color-changing anti-counterfeit feature of bank note.
Compared with the multiple reflections refractive power of level crossing constantly decays, using the light energy of total reflection prism all from rib
Reflected in mirror and gone out, under identical illumination condition, image frame more limpid in sight will be obtained, be that subsequent treatment brings
Advantage.
【Embodiment three】
Fig. 5 shows the mistake for carrying out false distinguishing to bank note or bill to be detected using false-identifying device described in the utility model
Journey.
System starts, and bank note is received from note input mouthful, through sending paper money passage to be sent to default position (region to be detected), triggering
First light source is opened, and to reaching the collection image of the bank note on the region, the image for collecting comes from region to be detected comprising light
Reflection photoimaging, and light comes from the reflected light in region to be detected again through the reflection photoimaging after total reflection prism reflection.Afterwards, carry
The honorable optically variable anti-counterfeiting feature of bank note in image is taken, by contrasting positive feature color value, lateral feature color value and positive side
The difference of region feature color value, carries out Threshold Analysis, to determine whether to detect that light glory becomes feature；Then described first is triggered
Light source is closed, and the first light source of triggering is opened, and to reaching the collection image of the bank note on the region, based on the characteristic of transmission, extraction is adopted
Complementary pair print feature in the image for collecting, and print is analyzed.It is comprehensive to become the testing result of characteristic to light glory and to mutual
Mend and the testing result for printing is judged whether to meet genuine note feature, if it is determined that being counterfeit money, shut down or note distribution treatment.
According to the disclosed embodiment, can enable that those skilled in the art realize or new using this practicality
Type.To those skilled in the art, the various modifications of these embodiments are it will be apparent that and the totality that defines here
Principle can also be applied to other embodiment on the basis of scope and spirit of the present utility model are not departed from.Above-described reality
It is only preferred embodiment of the present utility model to apply example, is not used to limit the utility model, all in essence of the present utility model
God and principle within, any modification, equivalent substitution and improvements made etc., should be included in protection domain of the present utility model it
It is interior.
Claims (10)
1. a kind of for the false-identifying device for becoming feature bank note with light glory, including：
Cash dispensing port；
Note input mouthful；
Transparent between cash dispensing port and note input mouthful send paper money passage；
In one first incident light source and a total reflection prism that the transparent side for sending paper money passage is set；
In the transparent opposite side for sending paper money passage, one second incident light source is set；
Positioned at the camera sent in paper money passage directly over region to be detected；
One image processing circuit, is connected with the camera；
One controlling switch, when reaching the area to be detected for sensing bank note, triggers first incident light source and described the
Two incident light sources are opened in turn, and when light source is opened, trigger the camera collection image；
Wherein：
First incident light source is located at and send region oblique upper to be detected in paper money passage, described with a default angle of inclination irradiation
Region to be detected；
Second incident light source is located at the underface for sending area to be detected in paper money passage, area to be detected described in vertical irradiation；
The total reflection prism is located at first incident light source in the reflected light path on the region to be detected to the shooting
Between the input path of head.
2. device as claimed in claim 1, it is characterised in that：
When the controlling switch triggers the first incident light source unlatching, on the camera collection bank note there is light glory to become special
The position of property.
3. device as claimed in claim 1, it is characterised in that：
When the controlling switch triggers the second incident light source unlatching, there is complementary pair impression on the camera collection bank note
The position of case.
4. device as claimed in claim 1, it is characterised in that：
The angle of first incident light source and the area planar to be detected is between 40 degree to 50 degree.
5. device as claimed in claim 1, it is characterised in that：
The angle of the total reflection prism bottom surface and the area planar to be detected is between 70 degree to 80 degree.
6. device as claimed in claim 1, it is characterised in that：
Described image process circuit by imaging that relatively first incident light source directly reflects in the region to be detected and
First incident light source judges whether to become feature with light glory through the imaging after total reflection prism reflection.
7. device as claimed in claim 1, it is characterised in that also include：
A beam-splitting board between the camera and the region to be detected is arranged at, the beam-splitting board is to first incident light
The light that source sends carries out semi-transflective reflective.
8. device as claimed in claim 7, it is characterised in that：
The beam-splitting board is with the area planar to be detected in a default angle.
9. device as claimed in claim 1, it is characterised in that：
The incident light source is LED white lights.
10. device as claimed in claim 9, it is characterised in that：
The LED white lights add the white LED lamp that three wavelength white lights of fluorescent material, the colour cell of multi-chip type three are closed for blue-ray LED
One of two kinds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900308.6U CN206179071U (en) | 2016-08-18 | 2016-08-18 | To having smooth counterfeit identification apparatus who becomes characteristic paper currency of luster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900308.6U CN206179071U (en) | 2016-08-18 | 2016-08-18 | To having smooth counterfeit identification apparatus who becomes characteristic paper currency of luster |
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| Publication Number | Publication Date |
|---|---|
| CN206179071U true CN206179071U (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620900308.6U Active CN206179071U (en) | 2016-08-18 | 2016-08-18 | To having smooth counterfeit identification apparatus who becomes characteristic paper currency of luster |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031409A (en) * | 2019-03-15 | 2019-07-19 | 南京华科和鼎信息科技有限公司 | A kind of multispectral anti-counterfeiting characteristic checks equipment and the method for inspection |
| CN112037415A (en) * | 2020-03-18 | 2020-12-04 | 秦佑胜 | Imaging characteristic analysis system applying block chain |
-
2016
- 2016-08-18 CN CN201620900308.6U patent/CN206179071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031409A (en) * | 2019-03-15 | 2019-07-19 | 南京华科和鼎信息科技有限公司 | A kind of multispectral anti-counterfeiting characteristic checks equipment and the method for inspection |
| CN112037415A (en) * | 2020-03-18 | 2020-12-04 | 秦佑胜 | Imaging characteristic analysis system applying block chain |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220105 Address after: 100084 a1604, 16th floor, building 8, yard 1, Zhongguancun East Road, Haidian District, Beijing Patentee after: New Shoreline (Beijing) Science and Technology Group Co.,Ltd. Address before: 100084, 16 floor, A building, Tsinghua Science and Technology Park, No. 1 Zhongguancun East Road, Beijing, Haidian District Patentee before: BEIJING NUFRONT SOFTWARE SCIENCE TECH. Co.,Ltd. |
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