CN103578174B - A kind of pick-up unit utilizing light reflection principle to detect bank note optical signature - Google Patents
A kind of pick-up unit utilizing light reflection principle to detect bank note optical signature Download PDFInfo
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- CN103578174B CN103578174B CN201210255815.5A CN201210255815A CN103578174B CN 103578174 B CN103578174 B CN 103578174B CN 201210255815 A CN201210255815 A CN 201210255815A CN 103578174 B CN103578174 B CN 103578174B
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- luminotron
- bank note
- automatic calibration
- receiving tube
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Abstract
The present invention relates to a kind of note detection device, specifically a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature.The present invention is equipped with luminotron and receiving tube in bank note Transfer pipe side, opposite side dress posts verification paper, luminotron is for being mapped to verification paper by the illumination of launching, receiving tube is for receiving the light that verification paper reflects, be connected with automatic calibration control circuit between luminotron radiating circuit and receiving tube receiving circuit, automatic calibration control circuit is connected with outer CPU control system.The present invention has the function by hardware automatic calibration control circuit, luminotron luminous intensity being regulated automatically to correction, does not need artificial manual operations, brings great convenience to user; Adjustment can be carried out to luminotron luminous intensity at any time to correct, detect each or adjustment correction can be carried out before every batch of detection, making testing result more accurate.
Description
Technical field
The present invention relates to a kind of note detection device, specifically a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature.
Background technology
Current banks of China and associated financial institution adopt paper currency detection equipment to have paper money counter and cleaning-sorting machine, all require the function that bank note is discerned the false from the genuine in such devices, the optical signature detecting bank note is a kind of conventional means of the identification note true and false, this method requires to irradiate bank note to be detected usually under certain luminotron emissive porwer, the intensity detecting the light that receiving tube receives carrys out the true and false of identification note, light emitting diode and photodiode individuality variant, in use procedure, diode behavior has drift, this requires the calibration function that will have light in equipment, general employing is corrected by verification paper in a device by hand, this correct operation is as frequently carried out, very big inconvenience will be brought to user, verify at regular intervals once normally, correct operation can not be carried out in real time.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide and a kind ofly utilize that light reflection principle carries out accurately the optical signature of bank note, the pick-up unit of stable detection.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature, in bank note Transfer pipe side, luminotron and receiving tube are housed, opposite side dress posts verification paper, luminotron is for being mapped to verification paper by the illumination of launching, receiving tube is for receiving the light that verification paper reflects, be connected with automatic calibration control circuit between luminotron radiating circuit and receiving tube receiving circuit, automatic calibration control circuit is connected with outer CPU control system.
Described automatic calibration control circuit comprises the integrating function circuit, correcting switch circuit, voltage maintenance functional circuit, driving functional circuit and the detector switch circuit that are linked in sequence.
The input end of described integrating function circuit connects the output terminal of receiving tube receiving circuit, and the reference voltage of integrating function circuit input is provided by outer CPU control system, for correcting the voltage of luminotron radiating circuit, and then corrects the luminous intensity of luminotron.
Close/disconnecting of described correcting switch circuit is controlled by outer CPU control system, when correcting switch closing of circuit, luminotron radiating circuit is communicated with receiving tube receiving circuit, and the reference voltage that the luminous intensity of luminotron is inputted by integrating function circuit carries out automatic calibration; When correcting switch circuit disconnects, luminotron radiating circuit is luminous by the voltage driven luminotron after correction.
Whether close/disconnecting of described detector switch circuit is controlled by outer CPU control system, luminous for controlling luminotron.
The present invention has the following advantages:
1. be there is the function by hardware automatic calibration control circuit, luminotron luminous intensity being regulated automatically to correction, do not need artificial manual operations, bring great convenience to user.
2. can carry out adjustment to luminotron luminous intensity at any time to correct, detect each or adjustment correction can be carried out before every batch of detection, making testing result more accurate.
3. simple with outer CPU control system interface, be easy to control and realize.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is that general structure of the present invention implements schematic diagram;
Fig. 3 is the theory diagram of automatic calibration control circuit of the present invention;
Fig. 4 is the circuit theory diagrams of automatic calibration control circuit of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Fig. 1 is general structure schematic diagram of the present invention.Comprise: luminotron radiating circuit, post verification paper Transfer pipe, receiving tube receiving circuit, automatic calibration control circuit.
As shown in Figure 2, luminotron, receiving tube are arranged on the same side of bank note Transfer pipe, opposite side Transfer pipe post verification paper.
As shown in Figure 3 and Figure 4, when carrying out automatic calibration, luminotron light source luminescent, shine directly on verification paper that Transfer pipe pastes, receiving tube directly receives the light of verification paper reflection, outer CPU control system controls by integrating function circuit, correcting switch circuit, voltage keeps functional circuit, drive functional circuit, the hardware automatic calibration control circuit of detector switch circuit composition, luminotron radiating circuit to be connected with receiving tube receiving circuit (correcting switch circuit by hardware automatic calibration control circuit, detector switch closing of circuit), based on the reference voltage that outer CPU control system provides, hardware automatic calibration control circuit controls luminotron radiating circuit, the power of automatic adjustment luminotron luminescence, the reference voltage making the receiver voltage of receiving tube be stable at the external world to provide.After completing the adjustment of reference voltage, just can adjust power valve, weakening of receiving tube optical property and compensate, the optical characteristics having carried out bank note detects.
When carrying out the detection of bank note optical characteristics, outer CPU control system controls the hardware automatic calibration control circuit of pick-up unit, luminotron radiating circuit is made to disconnect (disconnection of correcting switch circuit) by hardware automatic calibration control circuit and receiving tube receiving circuit, outer CPU control system provides reference voltage, by outer CPU control system control detector switch circuit closed/disconnect whether controlling luminotron light source luminescent, luminotron radiating circuit is luminous by the voltage driven luminotron after correction, through the reflection of bank note, due to the difference of bank note optical characteristics, receiving end receives different reflecting lights, CPU carries out quantitative analysis according to the characteristic of waveform again, obtain bank note optical characteristics accurately and detect analysis result.
Regulated by the automatic calibration carried out luminotron, the detection of bank note optical characteristics does not then need too strict to the performance requirement of luminotron, and the drift of the light signal that the luminotron that can also decline to some extent to the performance used after a while sends, make testing result more accurately and reliably, strengthen the accuracy of the false distinguishing, face amount identification etc. of bank note.
Claims (4)
1. the pick-up unit utilizing light reflection principle to detect bank note optical signature, it is characterized in that, in bank note Transfer pipe side, luminotron and receiving tube are housed, opposite side dress posts verification paper, luminotron is for being mapped to verification paper by the illumination of launching, receiving tube is for receiving the light that verification paper reflects, and be connected with automatic calibration control circuit between luminotron radiating circuit and receiving tube receiving circuit, automatic calibration control circuit is connected with outer CPU control system;
Described automatic calibration control circuit comprises the integrating function circuit, correcting switch circuit, voltage maintenance functional circuit, driving functional circuit and the detector switch circuit that are linked in sequence.
2. a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature according to claim 1, it is characterized in that, the input end of described integrating function circuit connects the output terminal of receiving tube receiving circuit, the reference voltage of integrating function circuit input is provided by outer CPU control system, for correcting the voltage of luminotron radiating circuit, and then correct the luminous intensity of luminotron.
3. a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature according to claim 2, it is characterized in that, close/disconnecting of described correcting switch circuit is controlled by outer CPU control system, when correcting switch closing of circuit, luminotron radiating circuit is communicated with receiving tube receiving circuit, and the reference voltage that the luminous intensity of luminotron is inputted by integrating function circuit carries out automatic calibration; When correcting switch circuit disconnects, luminotron radiating circuit is luminous by the voltage driven luminotron after correction.
4. a kind of pick-up unit utilizing light reflection principle to detect bank note optical signature according to claim 1, whether it is characterized in that, close/disconnecting of described detector switch circuit is controlled by outer CPU control system, luminous for controlling luminotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255815.5A CN103578174B (en) | 2012-07-23 | 2012-07-23 | A kind of pick-up unit utilizing light reflection principle to detect bank note optical signature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255815.5A CN103578174B (en) | 2012-07-23 | 2012-07-23 | A kind of pick-up unit utilizing light reflection principle to detect bank note optical signature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103578174A CN103578174A (en) | 2014-02-12 |
| CN103578174B true CN103578174B (en) | 2015-12-16 |
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| CN201210255815.5A Active CN103578174B (en) | 2012-07-23 | 2012-07-23 | A kind of pick-up unit utilizing light reflection principle to detect bank note optical signature |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103791452B (en) * | 2014-02-21 | 2017-01-04 | 中国人民银行印制科学技术研究所 | Light-source system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031014A (en) * | 2006-02-28 | 2007-09-05 | 日立欧姆龙金融系统有限公司 | Image sensor, ignition device and correcting method |
| CN102005076A (en) * | 2009-08-27 | 2011-04-06 | 株式会社东芝 | Light detection device and sheet processing apparatus including the same |
| CN202694450U (en) * | 2012-07-23 | 2013-01-23 | 辽宁聚龙金融设备股份有限公司 | Device for detecting optical characteristics of paper money by utilizing light reflection principle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003067805A (en) * | 2001-08-28 | 2003-03-07 | Hitachi Ltd | Device for discriminating truth or falsehood of sheet paper |
| JP2008032641A (en) * | 2006-07-31 | 2008-02-14 | Nidec Copal Corp | Photometric level correction method and measuring object inspection system |
| JP2009002830A (en) * | 2007-06-22 | 2009-01-08 | Hitachi Omron Terminal Solutions Corp | Optical sensor having correctable quantity of light emission, sheet identifying apparatus using the same, and correction method for the same |
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- 2012-07-23 CN CN201210255815.5A patent/CN103578174B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031014A (en) * | 2006-02-28 | 2007-09-05 | 日立欧姆龙金融系统有限公司 | Image sensor, ignition device and correcting method |
| CN102005076A (en) * | 2009-08-27 | 2011-04-06 | 株式会社东芝 | Light detection device and sheet processing apparatus including the same |
| CN202694450U (en) * | 2012-07-23 | 2013-01-23 | 辽宁聚龙金融设备股份有限公司 | Device for detecting optical characteristics of paper money by utilizing light reflection principle |
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| CN103578174A (en) | 2014-02-12 |
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Address after: 114051, Anshan Province, east of the eastern part of the town of Liaoning Qianshan Road No. 308 Applicant after: JULONG CO., LTD. Address before: 114051, Anshan Province, east of the eastern part of the town of Liaoning Qianshan Road No. 308 Applicant before: Liaoning Julong Financial Equipment Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: LIAONING JULONG FINANCIAL EQUIPMENT CORP. TO: JULONG CO., LTD. |
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