CN102385769A - Optical device for detecting and identifying damaged paper money by using photosensitive element - Google Patents
Optical device for detecting and identifying damaged paper money by using photosensitive element Download PDFInfo
- Publication number
- CN102385769A CN102385769A CN2011103571345A CN201110357134A CN102385769A CN 102385769 A CN102385769 A CN 102385769A CN 2011103571345 A CN2011103571345 A CN 2011103571345A CN 201110357134 A CN201110357134 A CN 201110357134A CN 102385769 A CN102385769 A CN 102385769A
- Authority
- CN
- China
- Prior art keywords
- tube array
- light
- luminous
- bank note
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to an optical device for detecting and identifying damaged paper money by using a photosensitive element. The optical device comprises a luminous tube array, a receiving tube array, a light transmission board and a bracket, wherein the light transmission board is fixedly arranged above the bracket; a luminous signal processing circuit board and a received signal processing circuit board are fixedly arranged at the inner bottom of the bracket; the inner part of the bracket is partitioned into relatively independent light detection cavities by partition walls; each light detection cavity is opposite to the luminous signal processing circuit board and the received signal processing circuit board; and the luminous tube array and the receiving tube array which are matched with each other in the light detection cavity are fixed on the luminous signal processing circuit board and the received signal processing circuit board respectively. By the optical device, the shortcomings of high error distinction rate and leakage rate, high cost, high maintenance requirement and high installation difficulty in the prior art are overcome; due to the specific design, whether various damages exist on paper money or not can be judged accurately; and the optical device has the advantages of low cost, simple structure and low mechanical installation requirement; furthermore, the optical device is not contacted with the paper money, so the optical device is not required to be maintained frequently.
Description
Technical field
The present invention relates to bank note sorting financial machine and tool, specifically a kind of optical devices that utilize light activated element to detect the damaged bank note of identification in the bank note screening installation.
Background technology
Phenomenons such as bank note can be torn in the daily life and the business activity process of circulation unavoidably, breakage, people tend to adhesive tape it to be pasted the repairing continued and use.Therefore in the assorting room of bank note, discern and have very important practical sense being attached to adhesive tape on the bank note.And the adhesive tape on the detection bank note never has very effective method, and traditional detection method is to detect through measuring its thickness, promptly judges through the fractional increments that detects bank note whether bank note posts adhesive tape.But because the adhesive tape that has is extremely thin; What the most frequently used adhesive tape was the thinnest has only 0.03mm thick; This is very difficult for thickness measure; Because the distribution of the ink thickness of bank note itself is uneven, and bank note itself also has the thickness fluctuation of 0.03mm, so be difficult to satisfy the detection requirement of adhesive tape based on the measurement of thickness.And utilize the thickness detection to need very accurate physical construction to cooperate, and cost is high, and installation difficulty is big.Need carry out contact during this external pelivimetry thickness and detect, in case grown service time, can be infected with many printing ink on the detection part, this will make testing result produce error, mistake takes place distinguish, therefore needs often detection part to be carried out cleaning.Generally speaking, detect with traditional mechanical measuring thickness device that adhesive tape on the bank note exists mistake to distinguish to distinguish the rate height with Louing, cost is high, maintenance requirement is high and problems such as installation difficulty is big.
Summary of the invention
Exist mistake to distinguish to distinguish rate height, the problem that cost is high, maintenance requirement is high and installation difficulty is big in order to overcome in the prior art traditional bank note testing agency with Louing; The present invention provides a kind of optical devices that utilize light activated element to detect the damaged bank note of identification; This device simple in structure, cost is low; Not high for mechanical installation requirement, and contactless with bank note, need not frequent maintenance; Can judge accurately whether bank note exists hole, whether spot is arranged, whether bank note tilt when getting into the sorting facility, whether be stained with adhesive tape and accurately detect the position of adhesive tape.
The technical solution adopted for the present invention to solve the technical problems is: comprise luminous tube array, receiving tube array, luminous signal treatment circuit plate, receive signal processing circuit board, light-passing board and support; Light-passing board is fixedly mounted on the support top position; Wait to recognize that bank note simultaneously passes through from the light-passing board surface of device top; Luminous signal treatment circuit plate is fixedly installed on the support inner bottom part with the reception signal processing circuit board; In support, be separated to form relatively independent light inspection chamber by the next door; Each light inspection chamber is all relative with the reception signal processing circuit board with luminous signal treatment circuit plate, and the luminous tube array and the receiving tube array that cooperatively interact in the light inspection chamber are individually fixed in luminous signal treatment circuit plate and receive on the signal processing circuit board; The array length of said luminous tube array and receiving tube array is greater than the maximum length of waiting to recognize bank note, and the radiative wavelength coverage of luminous tube array is 390 ~ 940 nanometers; The incident ray of said luminous tube array emission and receiving tube array received to the reflection ray angle be 10 °-35 °, when bank note to be recognized passes through its reflecting surface.
In light inspection chamber, be provided with at a distance from post between luminous tube array and the receiving tube array, extend to form anti-tampering platform to both sides at a distance from the top of post.
On light-passing board, be compounded with anti-reflection film corresponding to the emission wavelength of light.
The receiving tube of the luminotron of luminous tube array and described receiving tube array symmetry is one to one arranged.
Receive signal processing circuit board and controlled by MCU, the MCU input end selects analog switch and postsignal amplifying circuit to be connected to said receiving tube array through multiple signals, has judged whether adhesive tape by MCU; Said luminous signal treatment circuit plate is controlled by MCU, and the MCU output terminal links to each other with said luminous tube array through FET, by the light on and off sequential of MCU control luminotron.
The present invention has the following advantages through above-mentioned concrete design:
1, detect accurately, it is low that mistake is debated rate.This patent adopts the method based on optical detection; Utilize the luminous irradiation adhesive tape of luminotron surface to form total reflection; Reflection ray gets into receiving tube, can judge that according to the size of receiving light power light is through adhesive tape total reflection or the light that produces through the bank note diffuse reflection, has judged whether adhesive tape in view of the above.
2, because the luminous tube array and the receiving tube array that adopt high density to arrange; Can judge accurately whether bank note exists hole, whether spot is arranged, whether bank note tilt when getting into the sorting facility; Whether be stained with adhesive tape, the position of adhesive tape on bank note also can accurately detect.
3, luminous tube array and receiving tube array all adopt the lens that have focusing function; Incident ray and reflection ray transmission light-passing board gather on bank note a bit; The light that focuses on has been evaded the reflections affect that light-passing board brings; Photosignal is obvious, compares with no lens, does not have angular deviation light to weaken the signal errors that brings.
4, light-passing board and waiting of passing through to recognize bank note parallel fully, when bank note to be recognized passes through friction little, it is level and smooth to walk coin.It is to do pure printing opacity to use, and can prevent that again bank note is involved in: if light-passing board with pass through wait to recognize the bank note angulation, then walk in the coin process and can clearance therebetween produce negative pressure, paperboard is rolled easily.
5, solved the regular problem that detection part is carried out cleaning that needs.The present invention and bank note need not contact detection, also just do not have the problem that influences testing result and cleaning, make the present invention easier in practical application.
6, cost is low, simple in structure, and installation difficulty is little.
Description of drawings
Below in conjunction with accompanying drawing and embodiment detailed content of the present invention is described.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an outward appearance perspective elevation of the present invention.
Fig. 3 is circuit theory diagrams of the present invention.
Embodiment
As shown in the figure; The present invention includes luminous tube array 1, receiving tube array 2, luminous signal treatment circuit plate 3A, receive signal processing circuit board 3B, light-passing board 4 and support 5; Light-passing board 4 general employing optical glass also are fixedly mounted on support 5 top positions; On light-passing board 4, be compounded with anti-reflection film 11 corresponding to the emission wavelength of light; The purpose of design of anti-reflection film 11 is to strengthen the transmitance of emission light, reduces the reflection of glass surface to light, thereby improves the ratio of light in the light that receiving tube receives of note surface reflection.Wait to recognize that bank note 6 simultaneously passes through from light-passing board 4 surfaces of device top; Luminous signal treatment circuit plate 3A and reception signal processing circuit board 3B are fixedly installed on support 5 inner bottom parts; In support 5, be separated to form relatively independent light inspection chamber 8 by next door 7; Each light inspection chamber 8 is all relative with reception signal processing circuit board 3B with luminous signal treatment circuit plate 3A; The luminous tube array 1 that cooperatively interacts in the light inspection chamber 8 is individually fixed in luminous signal treatment circuit plate 3A and receives on the signal processing circuit board 3B with receiving tube array 2, and the interference of adjacent luminous tube array can be reduced in next door 7.The array length of luminous tube array 1 and receiving tube array 2 is greater than the maximum length of waiting to recognize bank note 6, and scanning area has covered the All Ranges scope of waiting to recognize one side when bank note 6 passes through.The incident ray of luminous tube array 1 emission is 10 ° ~ 35 ° with the reflection ray angle that receiving tube array 2 receives, wait to recognize when bank note 6 passes through its reflecting surface, luminous tube array 1 radiative wavelength coverage is 390 ~ 940 nanometers.In this exemplifying embodiment, select 17.5 ° for use as best incident light and catoptrical angle, the radiative optical wavelength of employing is infrared 940 nanometers.The receiving tube of the luminotron of luminous tube array 1 and receiving tube array 2 is symmetric offset spread one to one; In order to strengthen photosignal; Luminous tube array 1 adopts the band lens that the light emitting diode of focusing function is arranged; Receiving tube array 2 adopts the band lens that photodiode, the phototriode of focusing function are arranged, or light activated element such as photoresistance.In light inspection chamber 8, be provided with at a distance from post 9 between luminous tube array 1 and the receiving tube array 2; Top at a distance from post 9 extends to form anti-tampering platform 10 to both sides; The meaning of anti-tampering platform is to reduce the interference of glass surface light reflection, thereby improves the ratio of light in the light that receiving tube receives of note surface reflection because of platform has stopped to fall most of glass-reflected light.Light-passing board 4 with pass through wait to recognize bank note 6 complete parallel placements, it is to do pure printing opacity to use, and can prevent again that bank note is involved in to cause paperboard.Waiting to recognize that bank note 6 also can place identical luminous tube array, receiving tube array, luminous signal treatment circuit plate, receive signal processing circuit board, light-passing board and support through the opposite side of face, various mounting meanss are identical, and passage of light is identical.Influence light signal for fear of external light, wait to recognize that bank note 6 is opaque through the support 5 of face one side.Receive signal processing circuit board 3B and controlled by MCU, the MCU input end selects analog switch and postsignal amplifying circuit to be connected to said receiving tube array 2 through multiple signals, has judged whether adhesive tape by MCU; Also by MCU control, the MCU output terminal links to each other with said luminous tube array 1 through FET luminous signal treatment circuit plate 3A, by the light on and off sequential of MCU control luminotron.The principle of work of the present invention and the course of work are following: it is that luminous tube array 1 provides energy that luminous signal treatment circuit plate 3A starts the rear drive power supply by MCU control; Make it to send light source; Wait to recognize bank note 6 from light-passing board 4 bring into operation through; 4 irradiations of luminous tube array 1 emission light-wave transmission light-passing board wait to recognize that bank note 6 forms total reflections, and corresponding reflection ray transmission light-passing board 4 gets into receiving tube arrays 2, and receiving tube array 2 converts light signal to electric signal; Input to signal Processing back-end circuit plate 3B, can offer the bank note separator and do handled.Principle of work is: because note surface is rough, emission illumination becomes diffuse reflection on bank note, and the reflection source that receives reduces, and causes the level step-down.When on the bank note adhesive tape being arranged, because the reflection of adhesive tape, level is promptly drawn high, and because the luminous tube array 1 and photosensitive receiving tube array 2 that adopts high density to arrange, with the adhesive tape position that accurately detects on bank note.Survey bank note hole principle with surveying the bank note adhesive tape, when bank note had hole, emission illumination produced reflected light on to the pipe glass, and level is drawn high.Both are that the reflection source that hole forms is more than adhesive tape formation in difference, and therefore, the level ratio that hole is drawn high is higher.If spot is arranged on the bank note, diffusion of light is weakened, can cause level to be dragged down.When surveying the bank note gradient,, just can calculate the gradient of bank note through device through detecting any bank note time of arrival at 2.Above-described embodiment describes a kind of preferred implementation of utilizing light activated element to detect the optical devices of the damaged bank note of identification of the present invention; Be not that the design and the scope of inventing limited; Under the prerequisite that does not break away from the present invention program; Various external form modification and improvement that those skilled in the art make technical scheme of the present invention all should fall into a kind of protection domain that utilizes light activated element to detect the optical devices of the damaged bank note of identification of the present invention.
Claims (5)
1. one kind is utilized light activated element to detect the optical devices of discerning damaged bank note; Comprise luminous tube array, receiving tube array, luminous signal treatment circuit plate, receive signal processing circuit board, light-passing board and support; Light-passing board is fixedly mounted on the support top position; Wait to recognize that bank note simultaneously passes through from the light-passing board surface of device top; Luminous signal treatment circuit plate is fixedly installed on the support inner bottom part with the reception signal processing circuit board; It is characterized in that in support (5), being separated to form relatively independent light inspection chamber (8) by next door (7); Each light inspection chamber (8) is all relative with luminous signal treatment circuit plate (3A) and reception signal processing circuit board (3B), and luminous tube array (1) that cooperatively interacts in the light inspection chamber (8) and receiving tube array (2) are individually fixed in luminous signal treatment circuit plate (3A) and receive on the signal processing circuit board (3B);
The array length of said luminotron (1) array and receiving tube array (2) is greater than the maximum length of bank note to be recognized (6), and the radiative wavelength coverage of luminous tube array (1) is 390 ~ 940 nanometers;
The incident ray of said luminous tube array (1) emission is 10 °-35 ° with the reflection ray angle that receiving tube array (2) receives, when bank note to be recognized (6) passes through its reflecting surface.
2. according to claims 1 described a kind of optical devices that utilize light activated element to detect the damaged bank note of identification; It is characterized in that in light inspection chamber (8), being provided with separated post (9) between the luminous tube array (1) and receiving tube array (2), the top of separated post (9) extends to form anti-tampering platform (10) to both sides.
3. according to claims 1 or 2 described a kind of optical devices that utilize light activated element to detect the damaged bank note of identification, it is characterized in that on light-passing board (4), being compounded with anti-reflection film (11) corresponding to the emission wavelength of light.
4. according to claims 3 described a kind of optical devices that utilize light activated element to detect the damaged bank note of identification, it is characterized in that the receiving tube symmetry arrangement one to one of the luminotron and the described receiving tube array (2) of described luminous tube array (1).
5. according to claims 4 described a kind of optical devices that utilize light activated element to detect the damaged bank note of identification; It is characterized in that said reception signal processing circuit board (3B) controlled by MCU; The MCU input end selects analog switch and postsignal amplifying circuit to be connected to said receiving tube array (2) through multiple signals, has judged whether adhesive tape by MCU; Said luminous signal treatment circuit plate (3A) is by MCU control, and the MCU output terminal links to each other with said luminous tube array (1) through FET, by the light on and off sequential of MCU control luminotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103571345A CN102385769A (en) | 2011-11-12 | 2011-11-12 | Optical device for detecting and identifying damaged paper money by using photosensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103571345A CN102385769A (en) | 2011-11-12 | 2011-11-12 | Optical device for detecting and identifying damaged paper money by using photosensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102385769A true CN102385769A (en) | 2012-03-21 |
Family
ID=45825155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103571345A Pending CN102385769A (en) | 2011-11-12 | 2011-11-12 | Optical device for detecting and identifying damaged paper money by using photosensitive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102385769A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714617A (en) * | 2012-09-26 | 2014-04-09 | 梅伊有限公司 | Tape detector |
| CN104408845A (en) * | 2014-12-09 | 2015-03-11 | 杭州中瑞思创科技股份有限公司 | Infrared pair pipes |
| CN105321253A (en) * | 2015-10-19 | 2016-02-10 | 华南师范大学 | Photoelectric detection device and method characterized by using lasers to reflect and identify transparent adhesive tape on banknote |
| 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 |
| CN112840383B (en) * | 2018-10-24 | 2024-03-08 | 富士通先端科技株式会社 | Banknote checking device, banknote checking method, and banknote checking program |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162533A (en) * | 2006-10-13 | 2008-04-16 | 柳长庆 | Paper money testing recognition device |
| WO2009116374A1 (en) * | 2008-03-19 | 2009-09-24 | アルゼ株式会社 | Device for processing paper sheets or the like |
| CN201698509U (en) * | 2010-01-28 | 2011-01-05 | 湖南丰汇银佳科技有限公司 | Device for identifying transparent adhesive tape paper adhered onto surface of bank note |
| CN202331626U (en) * | 2011-11-12 | 2012-07-11 | 温州泓鼎商用机器有限公司 | Optical device for detecting and identifying damaged paper money by utilizing photosensitive element |
-
2011
- 2011-11-12 CN CN2011103571345A patent/CN102385769A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162533A (en) * | 2006-10-13 | 2008-04-16 | 柳长庆 | Paper money testing recognition device |
| WO2009116374A1 (en) * | 2008-03-19 | 2009-09-24 | アルゼ株式会社 | Device for processing paper sheets or the like |
| CN201698509U (en) * | 2010-01-28 | 2011-01-05 | 湖南丰汇银佳科技有限公司 | Device for identifying transparent adhesive tape paper adhered onto surface of bank note |
| CN202331626U (en) * | 2011-11-12 | 2012-07-11 | 温州泓鼎商用机器有限公司 | Optical device for detecting and identifying damaged paper money by utilizing photosensitive element |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714617A (en) * | 2012-09-26 | 2014-04-09 | 梅伊有限公司 | Tape detector |
| CN104408845A (en) * | 2014-12-09 | 2015-03-11 | 杭州中瑞思创科技股份有限公司 | Infrared pair pipes |
| CN105321253A (en) * | 2015-10-19 | 2016-02-10 | 华南师范大学 | Photoelectric detection device and method characterized by using lasers to reflect and identify transparent adhesive tape on banknote |
| CN105321253B (en) * | 2015-10-19 | 2018-04-17 | 华南师范大学 | Photoelectric detection system and method based on adhesive tape on laser reflection identification banknote |
| CN112840383B (en) * | 2018-10-24 | 2024-03-08 | 富士通先端科技株式会社 | Banknote checking device, banknote checking method, and banknote checking program |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102385769A (en) | Optical device for detecting and identifying damaged paper money by using photosensitive element | |
| US10073004B2 (en) | DOE defect monitoring utilizing total internal reflection | |
| CN203149147U (en) | Optical device and optical module | |
| WO2020216184A1 (en) | Terminal | |
| CN101313197B (en) | Method and apparatus for inspecting a container sidewall contour | |
| JP2013145236A (en) | Apparatus for measuring transmittance of cover glass for photovoltaic cell | |
| CN105976501A (en) | Paper money detection device | |
| CN106908412A (en) | Miniaturization laser methane sensing probe | |
| CN202331626U (en) | Optical device for detecting and identifying damaged paper money by utilizing photosensitive element | |
| CN209514733U (en) | A kind of contact-type image sensor with adhesive tape detection function | |
| CN105303675A (en) | Device and method for detecting thickness of paper by using photosensitive sensor | |
| CN202692947U (en) | Vacuum optical coating detection system | |
| CN202632399U (en) | Money-counting machine capable of highly distinguishing counterfeit money | |
| CN203812216U (en) | Flat touch screen | |
| JP3370746B2 (en) | Device for measuring the amount of sample in a transparent container | |
| CN201081694Y (en) | Contactless photoelectric thickness gauge | |
| CN113064106B (en) | Be applied to NV color center ensemble magnetometer fluorescence collection device's microwave antenna | |
| CN214097819U (en) | High sensitivity SMT charging tray detection subassembly | |
| CN201311324Y (en) | Integrating sphere light collector | |
| CN201965090U (en) | Reproductive medicine biochemical immunity testing equipment | |
| CN210981187U (en) | Detector for detecting flatness of elevator guide rail during elevator installation | |
| CN203561375U (en) | Reflective photoelectric sensing device | |
| CN211148915U (en) | Parallel detection device and system for in-place state of cup body in multi-cup-position environment | |
| CN110764098B (en) | Multi-cup-position environment cup body in-position state parallel detection device, system and method thereof | |
| CN103528610B (en) | Reflection-type photoelectric sensing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |