CN2876909Y - Laser optical fiber real and fake identification sensor for RMB - Google Patents
Laser optical fiber real and fake identification sensor for RMB Download PDFInfo
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- CN2876909Y CN2876909Y CNU2005201183400U CN200520118340U CN2876909Y CN 2876909 Y CN2876909 Y CN 2876909Y CN U2005201183400 U CNU2005201183400 U CN U2005201183400U CN 200520118340 U CN200520118340 U CN 200520118340U CN 2876909 Y CN2876909 Y CN 2876909Y
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Abstract
The utility model discloses a laser optical fiber real and fake identification sensor for RMB. Each laser in the infrared semiconductor laser array sends out the light, which forms slender light spot in the specific color ink region on the paper currency through the light beam switching focusing lens. And the visible light excited by the laser is received by the light signal transmission optical fiber. The optical cable made up of a plurality of light signal transmission optical fibers guides the light signal received by themselves to the same optical-electrical converter which only responses within the range of visible light band and the acquired optical-electrical signal is used for discriminating the paper currency after processed by the electric circuit. The sensor is small, with wide dynamic range and high discrimination rate, so it can be widely applied in various financial equipments.
Description
Technical field
The utility model relates to a kind of Renminbi device for identifying.
Background technology
Since version Renminbi emerged in 99 years, the counterfeit money of the various version of the imitated 99 years version Renminbi of undesirable in circulation on the market, brought about great losses to the country and people in succession.Kai Fa various Renminbi were debated pseudo-sensor in the past, as utilized fluorescent effect, magnetic field intensity, and the sensor of technology such as infrared light transmission intensity has stronger truth identification function to old version Renminbi.But,, therefore above-mentionedly debate pseudo-sensor and seem unable to do what one wishes for this counterfeit money with high content of technology of identification at the imitative material that added anti-identification in 99 years in the version Renminbi because undesirable's imitated technology is more and more higher.Some new anti-counterfeiting technologies that we have investigated in the new edition Renminbi at this situation have worked out the laser fiber truth identification sensor that this patent is addressed.
Version Renminbi had adopted many high-tech anti-counterfeiting technologies in 99 years, and wherein a kind of is exactly to scribble a kind of extremely difficult rainbow printing ink of copying in the currency specific region.It can inspire the visible light of specific wavelength under specific invisible infrared laser irradiation, this is characterized as distinguishes that 99 years version Renminbi true and falses provide a kind of reliable technique foundation.Old edition Renminbi before 99 years does not possess this feature.Once studied a kind of " Renminbi truth identification device " in 2000 and obtained patent according to this feature, its patent No. is z100257546.9.But bearing accuracy was very high when this device required to walk coin in practicality, and the coin mechanism of walking of finance device is difficult to realize.Secondly this device can only be discerned the currency front, and reverse side is owing to very inconvenience in the difficult therefore use of the too weak identification of signal.
The utility model content
The purpose of this utility model is, overcome the shortcoming of said apparatus, positioning accuracy request when walking coin is very wide, need not do too big change to existing finance device (as paper money counter etc.) can use, all can discern during the finance device of currency pros and cons feeding simultaneously, bring great convenience for the machine user of service.
The technical solution of the utility model is as follows: a kind of Renminbi laser fiber truth identification sensor, comprise infrared semiconductor laser, optical beam transformation focus lamp group, optical signal transmission optical fiber, photoelectric commutator, the multi-path laser power supply, prime amplifier, the A/D translation circuit, noise level auto compensatng circuit and cpu circuit, it focuses on: many infrared semiconductor lasers are lined up array format, and each infrared semiconductor laser all disposes its length of one or more receiving optical signals adjustable optical signal transmission optical fiber arbitrarily.
Described optical signal transmission optical fiber is single core or multicore.
The optical signal transmission optical fiber that matches on described each infrared semiconductor laser assembles an optical cable, is connected with the photoelectric commutator that only responds at visible light wave range.
Have shading rod not only free to rotate but also that can fluctuate, this shading rod is close to currency; The optical axis of optical beam transformation focus lamp group and optical signal transmission optical fiber are between two shading rods.
Infrared semiconductor laser optical beam transformation focus lamp group optical signal transmission optical fiber at currency together on one side; The plane of the plane that the optical axis of the infrared semiconductor laser of its array format and optical beam transformation focus lamp group is formed and optical signal transmission optical axis composition is on same plane or the plane that parallels.
Infrared semiconductor laser optical beam transformation focus lamp group is positioned at currency on one side; Optical signal transmission optical fiber is positioned at the currency another side.
Before the optical signal transmission optical fiber focus lamp is set.
The beneficial effects of the utility model are as follows:
1. dynamic range is big, can carry out fast detecting for 1 yuan of Currency Type to 100 yuan of different spaces of a whole page of 99 years versions.
2. discern counterfeit money rate height.
3. the Renminbi pros and cons is sent in the machine and all can be detected.
Description of drawings
Figure 1A is the utility model optical schematic diagram;
Figure 1B is the cut-open view of B-B face among Figure 1A;
Fig. 2 is a kind of arrangement figure of the utility model;
Fig. 3 is another arrangement figure of the utility model;
Fig. 4 is the another kind of arrangement figure of the utility model;
Fig. 5 is another arrangement figure of the utility model;
Fig. 6 A is the structural drawing of the utility model specific embodiment;
Fig. 6 B is the cut-open view of B-B face among Fig. 6 A;
Fig. 7 is the electrical principle block diagram that the utility model uses.
[figure number explanation]
1 optical beam transformation focus lamp group, 2 infrared semiconductor lasers
3 optical cables, 4 photoelectric commutators
5 cables, 6 currency
7 optical signal transmission optical fiber, 8 focus lamps
9 cable protection covers, 10 top boards
12 bodies, 13 sensor main bodies
14 lower platens, 15 right clamping plate
16 screws, 17 shading rods
18 left clamping plate 19 multi-path laser power supplys
20 prime amplifiers, 21 back grade amplifying circuits
22 back grade amplifying circuit 23 noise level auto compensatng circuits
24 A/D translation circuits, 25 cpu circuits
26 true and false currency resoluting signals are exported 27 high drive power supplys
Embodiment
Below in conjunction with accompanying drawing the utility model is further detailed.
A kind of Renminbi laser fiber of the utility model truth identification sensor, comprise infrared semiconductor laser 2, optical beam transformation focus lamp group 1, optical signal transmission optical fiber 7, photoelectric commutator 4, multi-path laser power supply 19, prime amplifier 20, A/D translation circuit 24, noise level auto compensatng circuit 23 and cpu circuit 25.It focuses on: many infrared semiconductor lasers 2 are lined up array format, and each infrared semiconductor laser 2 all disposes its length of one or more receiving optical signals adjustable optical signal transmission optical fiber 7 arbitrarily.Described optical signal transmission optical fiber 7 can be single core also can be multicore.The optical signal transmission optical fiber 7 that matches on described each infrared semiconductor laser 2 assembles an optical cable 3, and light signal is led same and only at the photoelectric commutator 4 of visible light wave range response.And Renminbi laser fiber truth identification sensor of the present utility model is equipped with shading rod 17 (referring to Fig. 6 B) not only free to rotate but also that can fluctuate, and it is close to currency 6, plays the effect of shading.The optical axis of this optical beam transformation focus lamp group 1 and optical signal transmission optical fiber 7 are between two shading rods 17.
In addition, Yi Bian connecting optical beam transformation focus lamp group 1, this infrared semiconductor laser 2 can constitute reflective work structuring (referring to Figure 1A, B-Fig. 3) together at currency 6 with optical signal transmission optical fiber 7.The plane that the optical axis of the infrared semiconductor laser 2 of its array format and optical beam transformation focus lamp group 1 is formed can also can be the plane that parallels on same plane with the plane that optical signal transmission optical fiber 7 optical axises are formed.
This infrared semiconductor laser 2 connects optical beam transformation focus lamp group 1 and is positioned at currency 6 on one side; Optical signal transmission optical fiber 7 is positioned at currency 6 another sides, constitutes transmission-type work structuring (referring to Fig. 4, Fig. 5).
This optical signal transmission optical fiber 7 is receiving optical signals directly, also focus lamp 8 (referring to Fig. 5) can be set before optical signal transmission optical fiber 7, by focus lamp 8 receiving optical signals, reaches the effect that light signal is amplified.
According to said structure, the utility model has following 4 kinds of arrangements at least:
A kind of be semiconductor laser and optical system axis and shaft axis of optic fibre at same vertical guide, but, constitute reflective work structuring (as Figure 1A, B-Fig. 3) all on one side of Renminbi face.
Second kind of scheme is two Transmission Fibers of symmetric arrangement in the perpendicular plane of each laser instrument the right and left and laser array face direction, also promptly the plane of two row's optical signal transmission optical axis compositions is parallel with the laser array face, is still reflective work structuring (referring to Fig. 2).Can increase the useful signal light intensity greatly like this.
The third scheme be semiconductor laser array and optical signal transmission fiber array at same vertical guide, each laser instrument and optical system and reception optical fiber is at same axis, but separates on the coin both sides, constitutes transmission-type work structuring (as Fig. 4).
The 4th kind of scheme is similar to the third scheme, is added with collector lens to strengthen using light intensity (as Fig. 5) before receiving optical fiber.
The utility model Renminbi laser fiber truth identification sensor is by multichannel infrared semiconductor laser 2 and optical beam transformation focus lamp group 1, multipath light signal Transmission Fibers 7, photoelectric commutator 4, multi-path laser power supply 19, high drive power supply 27, prime amplifier 20, noise level filtering sampling circuit 22, A/D translation circuit 24, noise level auto compensatng circuit 23, level amplifying circuit 21 in back carries out partly composition (as shown in Figure 7) such as the cpu circuit 25 of signal data acquisition analysis and processing and corresponding software.Its course of work is as follows:
The laser beam that the near-infrared wavelength semiconductor laser sends is through optical beam transformation Focused Optical system collimation and be focused into a rectangular invisible small light spot, be radiated on the Renminbi paper, the zone that scribbles rainbow printing ink inspires the visible light spot onesize with laser spot size, and this is useful signal hot spot.Oblique upper in this visible light spot disposes the flashlight Transmission Fibers nearby.The light that visible light spot scatters receives and is transferred to photoelectric commutator through optical fiber.
Owing to can be inspired rainbow printing ink an a certain specific region of visible light spot by infrared laser at 99 years version Renminbi, and Renminbi is at the feeding paper money counter, when carrying out quick counting note distribution in the finance devices such as counter machine how the currency pros and cons being placed to have particular provisions, so this piece special marking may also may be on the right side on a left side; Coin also can left and right sides play when in addition, walking coin.Therefore in this case also can not omission each open coin, the technical program adopts a plurality of laser constitution an array, and each laser instrument has all disposed same optical signal transmission optical fiber, and these many optical fiber are formed an optical cable, with flashlight same the photoelectric commutator that lead.
Because the existing useful light signal of scattered light that optical fiber receives, also has useless infrared light noise signal, and garbage signal is than useful signal manyfold eager to excel in whatever one does, simultaneously again since the using light signal that optical fiber receives very a little less than, and be subjected to the influence of Optical Fiber Transmission efficient, the using light signal that arrives photoelectric commutator is also just very little.Therefore will solve not only noise isolation but also can effectively carry out the purpose of opto-electronic conversion, the technical program has only adopted the electrooptical device in specific visible light wave range response, and has very high photoelectric transformation efficiency and enlargement factor.So filtered infrared noise effectively, and make useful visible light signal through photoelectric commutator amplify and follow-up a series of processing of circuit after by the computer acquisition analytical calculation, carry out true and false currency resoluting signal output 26 at last.
Because finance device uses under the situation preferably with lighting condition mostly by day, so the white light noise will be mingled in inevitably and is transmitted optical fiber among the useful signal light and receives together.Because the white light noise changes at any time, the noise level that obtains after opto-electronic conversion is also fluctuateed up and down simultaneously.Fluctuating range is crossed the collection that senior general directly has influence on useful signal, floods useful signal sometimes.For addressing this problem, the technical program is set about from two aspects.Be mechanically to have designed two unsteady shading rods on the one hand at sensor.Visible light spot that laser instrument inspires and Transmission Fibers are between two shading rods, and the shading rod is close to currency 6 by the weight of self, except that can freely rotating, can also fluctuate.Therefore, both remove most white light noises effectively, do not hindered the quick operation of coin again; On the other hand, designed the noise level auto compensatng circuit on circuit, it remains near certain appropriate value the peak value of noise level.
Below in conjunction with accompanying drawing 6A, B and the further specific embodiment of the present utility model of all the other description of drawings.
The optical principle of present embodiment such as accompanying drawing 1A, B.Referring to accompanying drawing 6A, 2 is infrared semiconductor laser, and one has 11 infrared semiconductor lasers in the present embodiment, forms an array along paper.Infrared semiconductor laser 2, optical beam transformation focus lamp group 1 is by lower platen 14, and top board 10 and sensor main body 13 connect together securely.From the section of Fig. 6 B as can be seen, two optical signal transmission optical fiber 7 arranged side by side, pass top board 10 from top to bottom, sensor main body 13, hole on lower platen 14 and right clamping plate 15, the left clamping plate 18 arrives a certain position of currency 6 tops, can adjust the angle of the two relative optical beam transformation focus lamp of optical fiber group optical axises by two screws 16, to reach best light signal receiving angle.Shading rod about 17 respectively has one, and respectively with right clamping plate 15, left clamping plate 18 float and connect.Shading rod 17 can rotate also and can fluctuate when walking coin, but is close to currency 6 all the time.Every infrared semiconductor laser 2 all is furnished with cover optical beam transformation focus lamp group 1 and two optical signal transmission optical fiber 7, and these many optical fiber assemble an optical cable 3 with same the photoelectric commutator 4 of light signal guiding that receives.The high pressure excitation and the photosignal output of photoelectric commutator 4 are undertaken by cable 5.The infrared semiconductor laser array is driven by cable 5 by multi-path laser power supply 19.Cable protection cover 9 is connected with sensor main body 13 by screw.Whole sensor links to each other by the body 12 of cable protection cover 9 usefulness screws and main frame.
During work when the laser irradiation area of coin by sensor, changeing device 4 resulting photosignals by photoelectricity is analyzed by the relevant data of computer acquisition after a series of processing of circuit, can obtain the light intensity of the visible light spot that laser excitation goes out, and the relevant position of visible light spot on currency 6, thereby judge the true and false of currency.And provide currency true and false signal, carry out the usefulness of go-on-go task for follow-up mechanism.
Claims (7)
1. Renminbi laser fiber truth identification sensor, comprise infrared semiconductor laser, optical beam transformation focus lamp group, optical signal transmission optical fiber, photoelectric commutator, the multi-path laser power supply, prime amplifier, A/D translation circuit, noise level auto compensatng circuit and cpu circuit, it is characterized in that: many infrared semiconductor lasers are lined up array format, and each infrared semiconductor laser (2) all disposes its length of receiving optical signals adjustable optical signal transmission optical fiber (7) arbitrarily.
2. Renminbi laser fiber truth identification sensor as claimed in claim 1 is characterized in that: described optical signal transmission optical fiber (7) is single core or multicore.
3. Renminbi laser fiber truth identification sensor as claimed in claim 1, it is characterized in that: the optical signal transmission optical fiber (7) that matches on described each infrared semiconductor laser (2) assembles an optical cable (3), is connected with the photoelectric commutator (4) that only responds at visible light wave range.
4. Renminbi laser fiber truth identification sensor as claimed in claim 1 is characterized in that: have shading rod (17) not only free to rotate but also that can fluctuate, this shading rod (17) is close to currency (6); The optical axis of optical beam transformation focus lamp group (1) and optical signal transmission optical fiber (7) are positioned between the two shading rods (17).
5. Renminbi laser fiber truth identification sensor as claimed in claim 1 is characterized in that: infrared semiconductor laser (2) optical beam transformation focus lamp group (1) optical signal transmission optical fiber (7) at currency together on one side; The plane of the plane that the optical axis of infrared semiconductor laser of its array format (2) and optical beam transformation focus lamp group (1) is formed and optical signal transmission optical fiber (7) optical axis composition is on same plane or the plane that parallels.
6. Renminbi laser fiber truth identification sensor as claimed in claim 1 is characterized in that: infrared semiconductor laser (2) optical beam transformation focus lamp group (1) is positioned at currency on one side; Optical signal transmission optical fiber (7) is positioned at the currency another side.
7. Renminbi laser fiber truth identification sensor as claimed in claim 6 is characterized in that: the preceding focus lamp (8) that is provided with of optical signal transmission optical fiber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201183400U CN2876909Y (en) | 2005-09-08 | 2005-09-08 | Laser optical fiber real and fake identification sensor for RMB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201183400U CN2876909Y (en) | 2005-09-08 | 2005-09-08 | Laser optical fiber real and fake identification sensor for RMB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876909Y true CN2876909Y (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201183400U Expired - Fee Related CN2876909Y (en) | 2005-09-08 | 2005-09-08 | Laser optical fiber real and fake identification sensor for RMB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876909Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894652A (en) * | 2016-05-06 | 2016-08-24 | 苏州格兰斯柯光电科技有限公司 | Portable light-sensing currency detector with voice alarm function |
| CN106023411A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Light-sensing banknote detector with image identification function |
| CN106023410A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Bayesian microscopic imaging method |
| CN106023408A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Optical detector with magnetism detection function |
-
2005
- 2005-09-08 CN CNU2005201183400U patent/CN2876909Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894652A (en) * | 2016-05-06 | 2016-08-24 | 苏州格兰斯柯光电科技有限公司 | Portable light-sensing currency detector with voice alarm function |
| CN106023411A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Light-sensing banknote detector with image identification function |
| CN106023410A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Bayesian microscopic imaging method |
| CN106023408A (en) * | 2016-05-06 | 2016-10-12 | 苏州格兰斯柯光电科技有限公司 | Optical detector with magnetism detection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |