EP1953709A1 - Wertpapierprüfer - Google Patents

Wertpapierprüfer Download PDF

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Publication number
EP1953709A1
EP1953709A1 EP07001529A EP07001529A EP1953709A1 EP 1953709 A1 EP1953709 A1 EP 1953709A1 EP 07001529 A EP07001529 A EP 07001529A EP 07001529 A EP07001529 A EP 07001529A EP 1953709 A1 EP1953709 A1 EP 1953709A1
Authority
EP
European Patent Office
Prior art keywords
valuable paper
light
validator
delivery path
valuable
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.)
Ceased
Application number
EP07001529A
Other languages
English (en)
French (fr)
Inventor
Tien-Yuan Chien
Wei-Jr Chen
Hai-En Tsai
Wen-Yuan Tsai
Cheng-Yi Lin
Ya-Huei Yang
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.)
International Currency Technologies Corp
Original Assignee
International Currency Technologies Corp
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 International Currency Technologies Corp filed Critical International Currency Technologies Corp
Priority to EP07001529A priority Critical patent/EP1953709A1/de
Publication of EP1953709A1 publication Critical patent/EP1953709A1/de
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing 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
    • G07D7/06—Testing 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
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/121—Apparatus characterised by sensor details

Definitions

  • the present invention relates to a valuable paper validator practical for use in a vending machine or coin change machine and more particularly, to such a high-accuracy valuable paper validator, which uses a LED package to emit different wavelengths of intense pulsed light through the valuable paper, a collimator lens to collimate different wavelengths of intense pulsed light onto a test zone of the valuable paper, and a photodiode to collect light passed through the valuable paper for comparing to a predetermined reference value by an internal microcontroller of the valuable paper validator to verify the authenticity of the valuable paper.
  • a paper currency has anti-counterfeiting techniques. Visible anti-counterfeiting techniques of paper currency include paper material, ink, seal, mark and etc. that can easily be verified with the eyes.
  • examining invisible anti-counterfeiting techniques requires a special machine or instrument to verity the authenticity.
  • a validator for this purpose uses rollers to carry in the inserted paper currency over a magnetic head, which detects the magnetic inks of the emblems and portrait and compares the detected signal with respective predetermined reference values for determining the authenticity of the paper current subject to the comparison result.
  • the magnetic head tends to be contaminated by ink dirt, resulting in an inaccurate detection.
  • a counterfeit currency maker may make a counterfeit currency that carrying similar magnetic inks to cheat the machine.
  • FIGS. 11 and 12 show a prior art valuable paper (bill) validator.
  • This design of valuable paper validator comprises a first linear light source A1 and a second linear light source A2 obliquely disposed at two sides above a test zone F1, a plurality of photo sensors C1 set between the two linear light sources A1 and A2, and a first optical element B1 set below the photo sensors C1.
  • a document (valuable paper) E1 enters an inlet of the valuable paper validator, the inlet is blocked, and a sheet-transferring roller set is started to carry the document (valuable paper) E1 through the test zone F1.
  • the linear light sources A1 and A2 are controlled to emit pulsed light onto the document (valuable paper) E1
  • the first optical element B1 condenses reflected light onto the photo sensors C1
  • the photo sensors C1 feedback the detected value at a predetermined circulation time point.
  • This detected value is indicative of the average PPF (paired-pulse facilitation) of the scanned surface color of the document (valuable paper) E1.
  • the aforesaid method is to examine the whole document (valuable paper) E1.
  • a supplementary light source A4 and a fourth optical element B4 may be provided at the other side.
  • the supplementary light source A4 is controlled to emit penetrative light that passes through the document (valuable paper) E1 for checking the transmission of the document (valuable paper) E1.
  • each linear light source A1 or A2 uses different colors of light emitting diodes (LEDs) A3 to emit different colors of light for verification.
  • a second optical element B2 and a third optical element B3 are set in front of the first linear light source A1 and the second linear light source A2 to correct the respective light source output angle.
  • the arrangement of the linear light sources A1 and A2, the optical elements B1, B2 and B3 and the photo sensors C1 must be carefully calculated so that detected signals can be compared to reference values for further accurate determination.
  • UV lamps are not suitable for use in a bill validator for vending machine.
  • an ultraviolet lamp type bill validator is used in an outdoor vending machine, air moisture may pass through gap between the lamp bulb and the electric socket, causing a short circuit.
  • the bulb of an ultraviolet lamp attenuates quickly with use.
  • an ultraviolet lamp consumes much electric power and releases much heat energy during operation.
  • an ultraviolet lamp has a big side and a short working life, and is easy to break.
  • the present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a valuable paper validator for vending machine or coin change machine, which uses one LED package to emit different wavelengths of intense pulsed light onto one same location at the test valuable paper, and one corresponding photodiode to receive light passing through the test valuable paper for verifying the authenticity of the test valuable paper.
  • This arrangement eliminates the complicated valuable paper validation procedure of the prior art design of using multiple LEDs and photo sensors. Therefore, the invention requires less installation space in the vending machine or coin change machine, and saves much the installation cost.
  • This design has a simple structure that eliminates the drawbacks of the complicated prior art design of using multiple light emitting diodes to scan different test zones of the test valuable paper and multiple optical elements to correct the light source output angle and an optical element to gather scanned light onto the photo sensor.
  • the design of the valuable paper validator of the invention has the advantages of. non-necessity of lamp warming time, fast reaction speed, small size, low power consumption, low pollution, high brightness and long working life.
  • the colors of known light rays include red, orange, yellow, green, blue, indigo and purple. Different colors of light rays have different wavelengths. When emitting different colors of light rays onto an object, different transmission and refractive indexes will be obtained. For example, when emitting light onto a red color object, the red color object will reflect red color of light and absorb other colors of light, and therefore only red color of light is seen. When emitting different colors of light onto an object, the light intensity of other colors of light that passed through the object will be weaker than the red color of light because red color of light has the highest transmission.
  • the invention uses the aforesaid physical characteristics of light in verification of valuable paper. Further, because different wavelengths of light have different colors, the following description of the present invention uses wavelengths for explanation.
  • a valuable paper validator 1 in accordance with the present invention comprising a delivery unit 11, a validation unit formed of an optical emitter module 12 and an optical receiver module 13, a security gate 14 and a security hook 15.
  • the delivery unit 11 has an insertion slot 111 through which a valuable paper is inserted, and a delivery path 112 in communication with the insertion slot 111.
  • the optical emitter module 12 is provided above the delivery path 112, comprising a LED package 121, which has multiple light emitting diode chips controllable to emit different wavelengths of light, and a collimator lens 122 that guides light rays from the LED package 121 across the delivery path 112.
  • the optical receiver module 13 is provided beneath the delivery path 112, comprising a condensing lens 131 adapted to condense light passing from the LED package 121 through the collimator lens 122 onto a valuable paper being delivered through the delivery path 112, and a photodiode 132 adapted to receive light passing through the condensing lens 131.
  • the security gate 14 is provided at the rear end of the delivery path 112.
  • the security hook 15 is provided at one side of the security gate 14.
  • the security gate 14 and the security hook 15 constitute a security mechanism.
  • the valuable paper validator 1 may be used in a vending machine or coin change machine.
  • a valuable paper 5 When a valuable paper 5 is inserted into the insertion slot 111, it is delivered through the delivery path 112 by the delivery unit 11 (because the delivery unit 11 is of the known art and not within the scope of the present invention, no further detailed description in this regard is necessary).
  • an internal microcontroller 2 of the valuable paper validator 1 outputs a digital start signal to a digital/analog converter 3, which converts the digital start signal into an analog start signal and sends the analog start signal to the LED package 121 of the optical emitter module 12, causing the LED package 121 to emit different wavelengths of intense pulsed light toward the collimator lens 122.
  • the collimator lens 122 collimates the intense pulsed light into a collimated light beam that goes through a predetermined area and shape of test zone 51 of the valuable paper 5 (seed FIGS. 4 and 4A ).
  • the collimated light beam goes to the condensing lens 131 and is then condensed by the condensing lens 131 onto the photodiode 132, which is induced to output a signal to an amplifier 4 for amplification.
  • the amplifier 4 then sends the amplified signal to the microcontroller 2.
  • the output pattern and intensity distribution of the signal are simulated in FIGS.
  • FIG. 4A is a schematic drawing illustrating the output optical field
  • FIG. 4B illustrates the light intensity distribution of the output optical field.
  • the valuable paper validator 1 can be made having multiple validation units arranged in parallel for checking the characteristics of different test zones 51 and 51a of the inserted valuable paper 5.
  • the LED package 121 or 121a, the collimator lens 122 or 122a, the condensing lens 131 or 131a, and the photodiode 132 or 132a of each validation unit are kept in a linear relationship relative to the corresponding test zone 51 or 51a of the valuable paper 5, i.e., the parts of each validation unit are on a same axis 6 or 6a.
  • validation units are arranged in parallel and because the LED package 121 or 121a, the collimator lens 122 or 122a, the condensing lens 131 or 131a, and the photodiode 132 or 132a of each validation unit are axially aligned in line, different test zones 51 and 51a of the inserted valuable paper 5 will not be detected twice, and the intense pulsed light from one validation unit will not be interfered with the intense pulsed light from the adjacent validation unit.
  • the photodiode 132 obtains different intensity of light source from the test zone 51 through the condensing lens 131 for comparing to the predetermined reference value by the microcontroller 2 so that the comparison result is used to determine the authenticity of the valuable paper 5.
  • the other way is to use the color of the pattern on the valuable paper 5 to filter different wavelengths of light from the LED package 121, for enabling the filtered light signal to be further compared to the predetermined reference value by the microcontroller 2 so that the microcontroller 2 determines the valuable paper 5 to be true or false subject to the comparison result.
  • FIGS. 5 ⁇ 7 illustrates the circuit diagram of the LED package 121 of the optical emitter module 12.
  • FIG. 8 illustrates the circuit diagram of the digital/analog converter 3.
  • FIG. 9 illustrates the circuit diagram of the photodiode 132 of the optical receiver module 13.
  • FIG. 10 illustrates the circuit diagram of the amplifier 4.
  • the invention is to verify the authenticity of a valuable paper 5 by driving the internal light emitting diode chips of the LED package 121 to emit different wavelengths of intense pulsed light through the collimator lens 122 onto a same location at the valuable paper 5.
  • This design needs not to use multiple LEDs and related optical elements to correct light source output angle. Therefore, the invention greatly saves the cost and improves the validation accuracy.
  • the use of the LED package 121 to emit different wavelengths of intense pulsed light has the advantages of non-necessity of lamp warming time, fast reaction speed, small size, low power consumption, low pollution, high brightness and long working life.
  • the invention is practical for use in the limited space of a vending machine or coin change machine.
  • the valuable paper validation operation of the valuable paper validator includes the steps of:
  • the LED package 121 can be made having five light emitting diode chips encapsulated therein for emitting different wavelengths of intense pulsed light.
  • These light emitting diode chips include a first light emitting diode chip that emits 615nm ⁇ 635nm red light, a second light emitting diode chip that emits 515nm ⁇ 532nm green light, a third light emitting diode chip that emits 460nm ⁇ 475nm blue light, a fourth light emitting diode chip that emits 850nm infrared light and a fifth light emitting diode chip that emits 940nm infrared (or ultraviolet) light.
  • the invention provides a valuable paper validator, which has the following features:
  • FIGS. 1 ⁇ 10 A prototype of valuable paper validator has been constructed with the features of FIGS. 1 ⁇ 10 .
  • the valuable paper validator functions smoothly to provide all of the features disclosed earlier.

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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)
EP07001529A 2007-01-24 2007-01-24 Wertpapierprüfer Ceased EP1953709A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07001529A EP1953709A1 (de) 2007-01-24 2007-01-24 Wertpapierprüfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07001529A EP1953709A1 (de) 2007-01-24 2007-01-24 Wertpapierprüfer

Publications (1)

Publication Number Publication Date
EP1953709A1 true EP1953709A1 (de) 2008-08-06

Family

ID=38255203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07001529A Ceased EP1953709A1 (de) 2007-01-24 2007-01-24 Wertpapierprüfer

Country Status (1)

Country Link
EP (1) EP1953709A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011072863A1 (de) * 2009-12-18 2011-06-23 Giesecke & Devrient Gmbh Spektralsensor zur prüfung von wertdokumenten
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
TWI825785B (zh) * 2021-08-04 2023-12-11 日商日本金錢機械股份有限公司 紙張搬運裝置及紙張處理裝置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5498879A (en) * 1991-10-14 1996-03-12 Mars Incorporated Apparatus for the optical recognition of documents by photoelectric elements having vision angles with different length and width
US20030031342A1 (en) * 2001-07-31 2003-02-13 Markus Sperl Apparatus for examining documents of value
US20050127305A1 (en) * 2003-12-12 2005-06-16 Sergiy Androsyuk Reflective optical sensor for bill validator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5498879A (en) * 1991-10-14 1996-03-12 Mars Incorporated Apparatus for the optical recognition of documents by photoelectric elements having vision angles with different length and width
US20030031342A1 (en) * 2001-07-31 2003-02-13 Markus Sperl Apparatus for examining documents of value
US20050127305A1 (en) * 2003-12-12 2005-06-16 Sergiy Androsyuk Reflective optical sensor for bill validator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011072863A1 (de) * 2009-12-18 2011-06-23 Giesecke & Devrient Gmbh Spektralsensor zur prüfung von wertdokumenten
CN102754130A (zh) * 2009-12-18 2012-10-24 德国捷德有限公司 用于检查有价文件的光谱传感器
US8711339B2 (en) 2009-12-18 2014-04-29 Giesecke & Devrient Gmbh Spectral sensor for checking documents of value
RU2552188C2 (ru) * 2009-12-18 2015-06-10 Гизеке Унд Девриент Гмбх Спектральный датчик для проверки ценных документов
CN102754130B (zh) * 2009-12-18 2015-08-19 德国捷德有限公司 用于检查有价文件的光谱传感器
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
TWI825785B (zh) * 2021-08-04 2023-12-11 日商日本金錢機械股份有限公司 紙張搬運裝置及紙張處理裝置

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