CN1862604A - Paper money identification device - Google Patents

Paper money identification device Download PDF

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Publication number
CN1862604A
CN1862604A CNA2006100817605A CN200610081760A CN1862604A CN 1862604 A CN1862604 A CN 1862604A CN A2006100817605 A CNA2006100817605 A CN A2006100817605A CN 200610081760 A CN200610081760 A CN 200610081760A CN 1862604 A CN1862604 A CN 1862604A
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CN
China
Prior art keywords
bank note
paper money
light
emitting diode
light emitting
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.)
Granted
Application number
CNA2006100817605A
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Chinese (zh)
Other versions
CN100576260C (en
Inventor
野津干雄
堂元一赖
垣见茂
后藤涉
臼井富士男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1862604A publication Critical patent/CN1862604A/en
Application granted granted Critical
Publication of CN100576260C publication Critical patent/CN100576260C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12Visible light, infrared or ultraviolet radiation
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D2207/00Paper-money testing devices

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

The provided bank note recognition device comprises: on top of path (23), a LED (25) to emit violet light, the fluorescence display to be activated to emit yellow light, a photodiode (26) under (23) to receive the yellow light and detect the display, and a recognition part (30) to final recognize the bank note.

Description

Paper money identifier
Technical field
The present invention relates to that one side is had the paper money identifier that bank note that fluorescence shows is discerned.
Background technology
Fig. 4 is the block diagram that identification one side (hereinafter being called the surface) has paper money identifier bank note, in the past of fluorescence demonstration.Be inserted into and insert mouthful 1 bank note 2, by carrying device 4 along path 3 and by conveyance.
Light emitting diode 5, by the last direction bank note 2 radiation ultraviolet rays of path 3, phototransistor 6 receives its reflected light.Light emitting diode 7, by the following direction bank note 2 radiation ultraviolet rays of path 3, phototransistor 8 receives its reflected light.
When the surface of bank note 2 made progress, fluorescence showed ultraviolet ray excited and luminous by from light emitting diode 5, and phototransistor 6 detects fluorescence and shows.
The surface of bank note 2 is downwards the time, and fluorescence shows ultraviolet ray excited and luminous by from light emitting diode 7, and phototransistor 8 detects fluorescence and shows.
Control part 15 is connected to light emitting diode 5 and 7.In addition, control part 15 is controlled carrying device 4 via drive division 17.
Phototransistor 6 and 8 output are connected to identification part 12 via linear amplifier 9, logarithmic amplifier 10 and A/D transducer 11.Identification part 12, the reference data that the output and the storer 13 of A/D transducer 11 are stored compares, the true and false and the denomination of identification bank note.Terminal 14 output recognition results.
But, above-mentioned paper money identifier in the past, owing to use 2 groups of light emitting diodes and phototransistor, so have the problem of miniaturization and cost degradation difficulty.
In addition, as the conventional art that the present invention relates to, known have: the flat 10-3561 communique of Japanese Patent Application Laid-Open for example.
Summary of the invention
Paper money identifier of the present invention is the paper money identifier that the bank note that simultaneously has the fluorescence demonstration is discerned, comprising: the insertion mouth of bank note; The path of conveyance bank note; The carrying device of conveyance bank note; Be arranged at the light emitting diode of path top; Be arranged at the light receiving element of path below; Carry out the identification part of paper money recognition with the signal of exporting based on light receiving element.
At this, fluorescence shows and to be excited by the purple light that light emitting diode radiated and send sodium yellow.Purple light and sodium yellow can pass through bank note together.Photodiode detects sodium yellow and output signal.The true and false of bank note is discerned in the identification part based on the signal of photodiode output.
Paper money identifier of the present invention, owing to only use 1 group of light emitting diode and photodiode, so can realize miniaturization and low cost.
Description of drawings
Fig. 1 is the block diagram of paper money identifier of the present invention;
Fig. 2 is the figure on the surface of expression bank note;
Fig. 3 is the family curve of the light transmission rate of bank note;
Fig. 4 is the block diagram of paper money identifier in the past.
Embodiment
Fig. 1 is the block diagram of paper money identifier of the present invention.Fig. 2 represents the surface of bank note 20.The surface of bank note 20 has fluorescence and shows 16.
In Fig. 1, the insertion mouth 21 of bank note 20 is connected to path 23.Carrying device 24 has pulley (pulley) and synchronous belt (timing belt).
The light emitting diode 25 of radiation purple light is arranged at the top of path 23.The below that will relatively be arranged at path 23 as the photodiode 26 and the light emitting diode 25 of light receiving element.Bank note 20 is walked between light emitting diode 25 and photodiode 26.
The output of phototransistor 26 is connected to identification part 30 via linear amplifier 27, logarithmic amplifier 28 and A/D transducer 29.
Logarithmic amplifier 28, input is amplified with big amplification degree to small-signal, and input is amplified with little amplification degree to large-signal, and output is near the appropriate signals of people's sensation.
The storer 32 that stores the reference data of bank note 20 is connected to identification part 30.Though show among the figure that identification part 30 is built-in with: the comparer of the output of comparison A/D transducer 29 and the reference data of bank note 20; The determining device that connects the output of this comparer.The output of determining device is connected to lead-out terminal 31.
33 pairs of drive units 34 that drive carrying device 24 of control part are controlled.Control part 33 is also controlled lighting of light emitting diode 25.
Below, the action of the paper money identifier of above structure is described.Be inserted into and insert mouthfuls 21 bank note 20, by carrying device 24 along path 23 and by conveyance.Drive unit 34, the speed of carrying out a paper money recognition with per second drives carrying device 24.
When the surface of bank note 20 made progress, the purple light fluorescence excitation of light emitting diode 25 radiation showed 16, and fluorescence shows that 16 send sodium yellow.Phototransistor 26 detects the sodium yellow that sees through bank note 20.
When the surface of bank note 20 was downward, the purple light of light emitting diode 25 radiation saw through bank note 20 and fluorescence excitation demonstration 16.Fluorescence shows that 16 send sodium yellow, and phototransistor 26 detects sodium yellow.
Under the situation, sodium yellow all is transformed to electric signal by photodiode 26, is input to identification part 30 via linear amplifier 27, logarithmic amplifier 28 and A/D transducer 29 arbitrarily.
Identification part 30, the reference data that input signal and storer 32 are stored compares, and judges that fiducial value is whether in the determinating reference of regulation.Like this, the true and false and the denomination of identification part 30 identification bank note 20.Lead-out terminal 31 output recognition results.
Fig. 3 represents the family curve 43 of the light transmission rate of bank note 20.
Point 44, expression ultraviolet ray (375nm) is because that light transmission rate is about is 1% very little, so ultraviolet ray is nearly all stopped by bank note 20.Therefore, as described in the background art, use ultraviolet paper money identifier in the past, used 2 groups of light emitting diodes and photodiode, so that no matter the surface of bank note 20 upwards still downwards can be corresponding.
Point 45, (390~420nm), light transmission rate is about 4% to the expression purple light.In addition, though do not show among the figure that the light transmission rate of sodium yellow is about 10%.
Paper money identifier of the present invention is owing to use to see through the purple light of bank note 20, so as above-mentioned illustrated, no matter the surface of bank note 20 can both be detected the fluorescence demonstration of bank note 20 by 1 group of light emitting diode 25 and photodiode 26 upwards still downwards.What in addition, can fluorescence excitation show is the purple light (light of the wavelength below 390~420nm).
But, because the light transmission rate (10%) of the light transmission rate (4%) of purple light and sodium yellow is different, so different determinating references is used up and down according to the surface of bank note 20 in identification part 30 when the true and false of discerning bank note 20 and denomination.The surface of bank note 20 upwards still downwards, is judged based on the characteristic of bank note 20.
Because the light transmission rate about 4% of purple light is a small-signal, logarithmic amplifier 28 can amplify the signal of purple light effectively.
Point 46,47 and 48 represent respectively blue light (450~480nm), red light (630~660nm) and infrared ray (910~970nm).If use violet light diode, red light emitting diodes and infrared light-emitting diode simultaneously, then owing to detecting the further feature information of bank note, so can carry out more accurate paper money recognition.
In addition, and the purple light of light emitting diode 25 radiation (390~420nm), owing to be visible light (between 380nm~810nm), so can whether normal by visual if differentiating light emitting diode 25.Therefore, the maintenance of device is easy.
Aforesaid the present invention can provide the small-sized paper money identifier cheaply that only uses 1 group of light emitting diode and photodiode.Paper money identifier of the present invention for example can be used for automatic vending machine.

Claims (4)

1. paper money identifier, it has the bank note that fluorescence shows to one side discerns, and comprising:
The insertion mouth of bank note;
The path of the described bank note of conveyance;
The carrying device of the described bank note of conveyance;
Be arranged at the light emitting diode of described path top;
Be arranged at the light receiving element of described path below; With
Carry out the identification part of paper money recognition based on the signal of described light receiving element output,
Described light emitting diode, radiation see through described bank note and excite the light of the wavelength that the fluorescence of described bank note shows.
2. paper money identifier according to claim 1 is characterized in that, described light emitting diode radiation purple light.
3. paper money identifier according to claim 2 is characterized in that, also has the light emitting diode of radiation red light and the light emitting diode of infra-red-emitting.
4. paper money identifier according to claim 1 is characterized in that, inserts logarithmic amplifier between described light receiving element and the described identification part.
CN200610081760A 2005-05-13 2006-05-11 Paper money identifier Expired - Fee Related CN100576260C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005140923 2005-05-13
JP2005140923A JP2006318252A (en) 2005-05-13 2005-05-13 Paper money identifying device

Publications (2)

Publication Number Publication Date
CN1862604A true CN1862604A (en) 2006-11-15
CN100576260C CN100576260C (en) 2009-12-30

Family

ID=37390026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200610081760A Expired - Fee Related CN100576260C (en) 2005-05-13 2006-05-11 Paper money identifier

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JP (1) JP2006318252A (en)
KR (1) KR20060117207A (en)
CN (1) CN100576260C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5217441B2 (en) * 2008-01-07 2013-06-19 パナソニック株式会社 Bill recognition device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09127000A (en) * 1995-11-07 1997-05-16 Furukawa Electric Co Ltd:The Fluorescence detector
JP3596176B2 (en) * 1996-06-12 2004-12-02 オムロン株式会社 Medium identification device
JP2003162748A (en) * 2001-11-22 2003-06-06 Nidec Copal Corp Fluorescence detection sensor for paper sheets
JP2004246714A (en) * 2003-02-14 2004-09-02 Nidec Copal Corp Pearl ink detection device and pearl ink detection method
JP4188111B2 (en) * 2003-03-13 2008-11-26 日立オムロンターミナルソリューションズ株式会社 Paper sheet authenticity discrimination device
JP3960282B2 (en) * 2003-08-29 2007-08-15 松下電器産業株式会社 Bill recognition device

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Publication number Publication date
CN100576260C (en) 2009-12-30
JP2006318252A (en) 2006-11-24
KR20060117207A (en) 2006-11-16

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Granted publication date: 20091230

Termination date: 20200511