CN206179072U - All -round detection paper currency security feature's device - Google Patents
All -round detection paper currency security feature's device Download PDFInfo
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- CN206179072U CN206179072U CN201620915743.6U CN201620915743U CN206179072U CN 206179072 U CN206179072 U CN 206179072U CN 201620915743 U CN201620915743 U CN 201620915743U CN 206179072 U CN206179072 U CN 206179072U
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Abstract
The utility model discloses an all -round detection paper currency security feature's device, include: go into the paper money mouth, go out the paper money mouth, the transparent paper money passageway that send, set up in transparent white light source, laser lamp -house and the total reflection prism who send paper money passageway top, color sensor is with the corresponding position of white light source, laser sensor is with the corresponding position of laser lamp -house, infrared sensing switch is located treat detection area the place ahead on the transparent transfer passageway, image processor handles image and the security feature image in the image under the laser lamp -house under the white light source, the arbiter for judge anti -fake special image, and the pseudo - result of output mirror. The device can detect multinomial anti -fake simultaneously, has improved the pseudo - speed and the degree of accuracy of mirror.
Description
Technical field
The utility model is related to image procossing and technology of identification field, and in particular to the false distinguishing detection of a kind of bank note or bill
Device.
Background technology
With the continuous development of 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, damages 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 the continuous development of 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 adopted in a large number.There is discoloration effect 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, in systems the color of image feature to collecting carry out extracting point
Analysis, reaches the effect of false distinguishing.Therefore need for because bank note causes characteristic point towards difference, each may go out in the mixed point of bank note
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 is when bank note is towards difference, 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 just can be further processed.Therefore for 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.For example for the detection of Optical Variable Ink discoloration, it usually needs install two IMAQs in front and side and set
Standby, so for can just 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 change in the case of not translation-angle light incidence
With the direction of reflection, the purpose of two different angular optical features is observed in same visual field so as to reach, but it is general 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 front surface of level crossing is glass surface
Reflection light, light, so image overlap can be formed into multiple pictures, will affect figure through glass surface and silver-colored face multiple reflections
As the process of judge module.It is wherein most bright by silver-colored face reflection imaging (main picture) for the first time, and other pictures are then increasingly
Secretly, although typically will not 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 the optimum of the system that can be only achieved, so as to good basis is laid in the design and false distinguishing for product.
Utility model content
In view of this, the utility model provides a kind of device of comprehensive detection guiding against false of paper currency feature, including：
Note input mouth；
Cash dispensing port；
It is transparent to send paper money passage；
It is arranged at the transparent white light source sent above paper money passage, LASER Light Source and total reflection prism；
Color sensor, with white light source opposite position；
Laser sensor, with LASER Light Source opposite position；
Infrared sensing is switched, the region fore to be detected on the transparent Transfer pipe；
Wherein：
The white 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；
The total reflection prism is located at reflected light path of the white light source on the region to be detected to the color
Between the input path of sensor；
Infrared sensing is switched, for when bank note is sensed into region to be detected, triggering the white light source and described
LASER Light Source is lighted in turn, and when white light source is lighted, triggering color sensor collection image, when LASER Light Source is opened, is touched
Send out laser sensor collection image；
Image processor, processes the anti-counterfeiting characteristic image in the image and the image under LASER Light Source under white light source；
Arbiter, for judging false proof special image, and exports false distinguishing result.
It is preferred that the color sensor, gathers the position that there is light glory to become characteristic and complementary pair print characteristic on bank note.
It is preferred that the laser sensor, has relief printing plate, the position of engraving and printing feature on collection bank note.
It is preferred that the angle of the white light source and the area planar to be detected is between 40 degree to 50 degree；It is described complete
The angle of reflecting prism bottom surface and the area planar to be detected is between 70 degree to 80 degree.
It is preferred that the color sensor, the white light source collected by comparing color sensor is treated in described
Imaging after the total reflection prism reflection described in of the imaging that detection zone directly reflects and the white light source, judges whether have
Light glory becomes characteristic；The color sensor, by judging the white light source that color sensor collects in described to be checked
The imaging that region is directly reflected is surveyed, judges whether to print characteristic with complementary pair.
It is preferred that also including：Beam-splitting board, between the color sensor and the region to be detected, for institute
Stating the light that white light source sends carries out semi-transflective reflective.
It is preferred that the white 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.
It is preferred that also include mounting plate, wherein：The LASER Light Source, white light source and color sensor are fixedly connected with
On mounting plate, the mounting plate is provided with hole corresponding with LASER Light Source, white light source and color sensor position, for by institute
State LASER Light Source, white light source and color sensor to insert in the hole.
It is preferred that also include bottom plate, wherein：The laser sensor is fixedly connected on bottom plate, the bottom plate
Hole corresponding with laser sensor position is provided with, the laser sensor is inserted in the hole.
The false-identifying device of the bank note that the utility model is provided, can detect to multinomial false proof point simultaneously, improve mirror
The speed of puppet and the degree of accuracy.
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 a kind of paper money discrimination device, as shown in figure 3, including：
Cash dispensing port 301；
Note input mouth 302；
Transparent between cash dispensing port 301 and note input mouth 302 send paper money passage 303；
The white light source 304 that top is arranged of paper money passage 303, LASER Light Source 305 and total reflection prism 306 are sent in transparent；
The white light source 304 is located at and send the oblique upper of region to be detected 307 in paper money passage 303, with a default inclination angle
The degree irradiation region to be detected 307；
Color sensor 308, positioned at the position corresponding with white light source 304；
Laser sensor 309, positioned at the position corresponding with LASER Light Source 305；
Total reflection prism 306 is located at reflected light path of the white light source 304 on the region to be detected 307 to described
Between the input path of color sensor 308；
Infrared sensing switch 310, the front of region to be detected 307 on the transparent Transfer pipe 303, in sensing
When entering region 307 to be detected to bank note, trigger the white light source 304 and the LASER Light Source 305 is lighted in turn, Yi Ji
When white light source 304 is lighted, the triggering collection image of color sensor 308, when LASER Light Source 305 is lighted, triggers laser sensing
Device 309 gathers image；
Image processor 311, is connected respectively with color sensor 308 and laser sensor 309, processes and analyze white light light
The image that source 304 collects when lighting, judges whether bank note there is light glory to become characteristic and complementary pair print characteristic；And process simultaneously
The image that analysis LASER Light Source 305 is collected when lighting, judges whether bank note has relief printing plate, engraving and printing feature.
Arbiter 312, is connected with image processor 311, and for judged result of the synthesis to each anti-counterfeiting characteristic, output is treated
The false distinguishing result of detection bank note.
The purpose of the utility model embodiment design total reflection prism 306 is the image that can obtain two kinds of angles, one
It is the image that color sensor 308 is directly reflexed under white light source 304 irradiates, i.e. direct picture；Another kind is Jing total reflections
Image after the reflection of prism 306, i.e. side image.The two width images due to can simultaneously obtain different angles, therefore, for not
The anti-forgery feature point designed with angle, such as light glory become characteristic, you can realize false distinguishing.In addition, the false proof spy based on transmission
Levy, the transparent of the utility model embodiment send paper money passage 303 and provide condition for the discriminating of this false proof point, by passing to color
The direct picture that sensor 308 is collected is analyzed, you can discriminate whether the anti-counterfeiting characteristic for having based on transmission, such as complementary pair
Print feature.
It is preferred that the color sensor 308 and the laser sensor 309 can be according to default rules only for paper
The ad-hoc location collection image of coin.For example, when white light source 304 is opened, color sensor 308 is only gathered and have on bank note light
Glory becomes characteristic and complementary pair prints the position of characteristic.When LASER Light Source 305 is opened, laser sensor 309 is only gathered and adopted on bank note
There is relief printing plate, the position of engraving and printing feature on collection bank note.So as to reduce the processing data amount of image, the speed of false distinguishing identification is improved
Degree.
It is preferred that the angle of the white light source 304 and the plane of region to be detected 307 is between 40 degree to 50 degree；
The angle of the bottom surface of the total reflection prism 306 and the plane of region to be detected 307 is between 70 degree to 80 degree.
Wherein, the white light source 304 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.
It is preferred that described device also includes mounting plate 313, the LASER Light Source 305, white light source 304 and color are passed
Sensor 308 is fixedly connected with mounting plate 313, and the mounting plate 314 is provided with and LASER Light Source 305, white light source 304 and face
The corresponding hole in the position of colour sensor 308, the LASER Light Source 305, white light source 304 and color sensor 308 is inserted in described
Kong Zhong.
Correspondingly, bottom plate 314 is additionally provided with, the laser sensor 309 is fixedly connected on bottom plate 314, institute
State bottom plate 314 and be provided with hole corresponding with the position of laser sensor 309, the laser sensor 309 is inserted in the hole.
When bank note is put into into note input mouth 302, when sending paper money passage 303 to be transferred into region 307 to be detected, trigger first
The light beam that white light source 304 is launched is impinged upon on bank note, and after light beam is launched on bank note, the total reflection prism 306 connects
Light source projects are received to reflected light produced on the bank note, the critical of air is injected for 45 ° from glass more than light due to incidence angle
42 ° of angle, light can be totally reflected on prism bases, project on 90 degree of direction finally along during incidence, and will not shape
Into ghost image.
The height and angle of color sensor 308 is caused in its field range simultaneously comprising the paper on region to be detected 307
The picture of coin and the bank note in total reflection prism 306, when bank note reaches region 307 to be detected, triggering color sensor 308 starts
Collection image, contains two bank note glazing glories and becomes characteristic pattern in a two field picture；Afterwards, 311 pairs of bats of Jing image processors
The image taken the photograph carries out a series of pretreatment, feature extraction, Threshold Analysis, comprehensively obtains final result.Bank note has
Some light glories become characteristic pattern with viewing angle difference, and 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.Become the pattern of feature in the white light source 304 and total reflection rib when having light glory on just bank note
During 306 side of mirror, will detect that light glory becomes characteristic；But if bank note have light glory become feature pattern reverse side when, nothing
Method detects light glory and becomes characteristic.Now, in order to improve false distinguishing efficiency and not increase hardware cost, bank note direction is not turned
To process, also do not increase in opposite side and become the structure that feature is acquired to light glory, but it is complementary based on transmissison characteristic detection
To seal puppet region, the transparent of the utility model embodiment send paper money passage 303 and provides condition for the discriminating of this false proof point, logical
Cross and the direct picture that color sensor 308 is collected be analyzed, you can discriminate whether the anti-counterfeiting characteristic for having based on transmission,
Such as complementary pair print feature.
【Embodiment two】
As shown in figure 4, the present embodiment also includes relative to embodiment one：
A beam-splitting board 415, the beam-splitting board 415 are also set up between color sensor 408 and the region to be detected 407
Semi-transflective reflective is carried out to the light that white light source 404 sends.
Wherein, the beam-splitting board 415 is set with the plane in the region to be detected 407 in a default angle.
It is preferred that the beam-splitting board 415 should be located at immediately below color sensor 408, it is highly consistent with white light source 404,
The beam-splitting board 415 near the one end of white light source 404 higher than datum plane into 45 degree of angles, the beam-splitting board 415 is to white light source 404
The light for going out carries out semi-transflective reflective；The color sensor 408 can gather image through beam-splitting board 415；By white light source 404
The light beam of injection, after beam-splitting board 415 is shone, a part reflects, directive bank note, so equivalent to reinforcement front light intensity,
The direct picture that the color sensor 408 is photographed is become apparent from, increases positive color effects, can further be increased
The aberration of direct picture and side image, makes judge module be 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
Reflect in mirror and go 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 from note input mouth bank note is received, and Jing send paper money passage to be sent to default position (region to be detected), triggers
White 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 reflection photoimaging of the reflected light in region to be detected again Jing 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；Also extract bank note in image
Complementary pair print anti-counterfeiting characteristic, by compare positive feature color value carry out Threshold Analysis, to determine whether to detect complementary pair
Print feature.Then trigger the white light source to close, triggering LASER Light Source is opened, to reaching the bank note collection figure on the region
Picture, is detected using LASER Light Source and laser sensor to bank note：One is that specialty inks are detected using laser；Two are
Relief printing plate, engraving and printing are detected using laser；The specialty inks and print characteristics of bank note are carried out by laser sensor
After collection, after filtering, amplify, A/D conversion after by signal send into master control processing system；Master control processes control system by certain
Algorithm the true and false of bank note is analyzed and recognized to it.Comprehensively become the testing result of characteristic to light glory and to complementary pair print
Testing result judges whether to meet genuine note feature, if it is determined that being counterfeit money, is shut down or note distribution is processed.
According to the disclosed embodiment, those skilled in the art can be enabled to 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 without departing from scope and spirit of the present utility model.Above-described reality
It is only preferred embodiment of the present utility model to apply example, all in essence of the present utility model not to limit the 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 device of comprehensive detection guiding against false of paper currency feature, including：
Note input mouth；
Cash dispensing port；
It is transparent to send paper money passage；
It is arranged at the transparent white light source sent above paper money passage, LASER Light Source and total reflection prism；
Color sensor, with white light source opposite position；
Laser sensor, with LASER Light Source opposite position；
Infrared sensing is switched, the region fore to be detected on the transparent Transfer pipe；
Wherein：
The white light source is located at and send region oblique upper to be detected in paper money passage, described to be checked with a default angle of inclination irradiation
Survey region；
The total reflection prism is sensed positioned at reflected light path of the white light source on the region to be detected to the color
Between the input path of device；
Infrared sensing is switched, for when bank note is sensed into region to be detected, triggering the white light source and the laser
Light source is lighted in turn, when white light source is lighted, triggering color sensor collection image, and when LASER Light Source is opened, triggering swashs
Optical sensor gathers image；
Image processor, processes the anti-counterfeiting characteristic image in the image and the image under LASER Light Source under white light source；
Arbiter, for judging false proof special image, and exports false distinguishing result.
2. device as claimed in claim 1, it is characterised in that：
The color sensor, gathers the position that there is light glory to become characteristic and complementary pair print characteristic on bank note.
3. device as claimed in claim 1, it is characterised in that：
The laser sensor, has relief printing plate, the position of engraving and printing feature on collection bank note.
4. device as claimed in claim 1, it is characterised in that：
The angle of the white light source and the area planar to be detected is between 40 degree to 50 degree；
The angle of the total reflection prism bottom surface and the area planar to be detected is between 70 degree to 80 degree.
5. device as claimed in claim 1, it is characterised in that：
The color sensor, it is direct in the region to be detected by comparing the white light source that color sensor collects
Imaging after the total reflection prism reflection described in of the imaging of reflection and the white light source, judges whether to become special with light glory
Property；
The color sensor, it is direct in the region to be detected by judging the white light source that color sensor is collected
The imaging of reflection, judges whether to print characteristic with complementary pair.
6. device as claimed in claim 1, it is characterised in that also include：
Beam-splitting board, between the color sensor and the region to be detected, for what is sent to the white light source
Light carries out semi-transflective reflective.
7. device as claimed in claim 1, it is characterised in that：
The white light source is LED white lights.
8. device as claimed in claim 7, 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.
9. device as claimed in claim 1, it is characterised in that also including mounting plate, wherein：
The LASER Light Source, white light source and color sensor are fixedly connected with mounting plate, and the mounting plate is provided with and swashs
Radiant, the corresponding hole of white light source and color sensor position, for the LASER Light Source, white light source and color to be sensed
Device is inserted in the hole.
10. device as claimed in claim 9, it is characterised in that also including bottom plate, wherein：
The laser sensor is fixedly connected on bottom plate, and the bottom plate is provided with hole corresponding with laser sensor position,
The laser sensor is inserted in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915743.6U CN206179072U (en) | 2016-08-22 | 2016-08-22 | All -round detection paper currency security feature's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915743.6U CN206179072U (en) | 2016-08-22 | 2016-08-22 | All -round detection paper currency security feature's device |
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| CN206179072U true CN206179072U (en) | 2017-05-17 |
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| CN201620915743.6U Active CN206179072U (en) | 2016-08-22 | 2016-08-22 | All -round detection paper currency security feature's device |
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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 |
| CN113379959A (en) * | 2021-06-10 | 2021-09-10 | 广州市银科电子有限公司 | Method, equipment and storage medium for identifying bank note |
-
2016
- 2016-08-22 CN CN201620915743.6U patent/CN206179072U/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 |
| CN113379959A (en) * | 2021-06-10 | 2021-09-10 | 广州市银科电子有限公司 | Method, equipment and storage medium for identifying bank note |
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Effective date of registration: 20220113 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. |