WO1999006965A1 - Metodo para la identificacion de piezas metalicas discoidales con un orificio central - Google Patents
Metodo para la identificacion de piezas metalicas discoidales con un orificio central Download PDFInfo
- Publication number
- WO1999006965A1 WO1999006965A1 PCT/ES1998/000216 ES9800216W WO9906965A1 WO 1999006965 A1 WO1999006965 A1 WO 1999006965A1 ES 9800216 W ES9800216 W ES 9800216W WO 9906965 A1 WO9906965 A1 WO 9906965A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole
- coin
- optical sensors
- optical
- moment
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation
Definitions
- the present invention relates to a method for the identification of discoidal metal parts with a central hole, especially applicable to the characterization and discrimination of coins or tokens that have the particularity of having a hole in the center.
- the method of the invention allows not only to determine whether or not there is a hole in the center of the coin, but also to measure with sufficient precision the dimension of said hole, to be taken into account as a basic parameter of coin identification.
- Obtaining dimensional characteristics of coins is a technique normally used in the processes of characterization or identification of coins.
- selectors equipped with means are used that provide the necessary information to be able to know the diameter or length of a coin string.
- Selectors of the indicated type are described for example in Spanish patents nos. 557,523 and 555,181, of the same applicants.
- Patent 555,181 combines the measurement system described above with an electromagnetic sensor, which provides information on the characteristics of the alloy of the coin being analyzed.
- the object of the present invention is to solve the problem set forth by a method that allows the discrimination and characterization of coins or metal tokens whose particularity is to have a hole in the center.
- the method of the invention is achievable by means of selectors of the type described in Spanish patent 555,181 which have, in a section of the path that the coins must travel through the interior of the selector, two optical sensors and an electromagnetic sensor.
- the process of the invention comprises, in combination, the obtaining and measurement of characteristic values of the signal produced by the passage of the central orifice of the coin through the electromagnetic sensor, and the calculation of the length of the hole string intercepted by the optical sensors
- the passage of the orifice of the coin through the electromagnetic sensor produces a signal from which characteristic values are obtained that may consist of the value of the peak of the central zone of the signal and the value of the extreme peaks of said zone.
- the calculation of the length of the rope intercepted by the passage of the hole through the optical sensors is obtained based on the instants in which the coin begins to intercept and finishes intercepting the first and second optical sensors and depending on the moments in which one of the optical sensors begins to see and ends to see the hole of the coin.
- Figure 1 schematically depicts a traditional sensor arrangement and a coin with a central hole at the beginning of the raceway.
- Figure 2 shows the typical signals provided by an optical detector and an electromagnetic sensor, when intercepted by the passage of a coin without a hole.
- Figure 3 shows the signals provided by the same sensors, when a coin with a central hole 3 mm in diameter passes before them.
- Figure 4 shows the same signals as Figure 3, but produced by the passage of a coin with a larger central hole.
- Figure 5 represents the temporal signals of the two optical detectors for a coin without a hole.
- Figure 6 shows the temporary signals of the optical detectors, for a coin with a small central hole.
- Figure 7 shows the same signals as Figure 6, but for a coin that has a larger central hole.
- the method of the invention is intended for the identification of discoidal metal parts 1 provided with a central hole 2, figure 1, by means of a selector that has, in a section of the path that the coins must travel through the interior of the selector, of two optical sensors 3 and 4 and an electromagnetic sensor 5, which in the example described is located between the optical sensors 3 and 4.
- a selector that has, in a section of the path that the coins must travel through the interior of the selector, of two optical sensors 3 and 4 and an electromagnetic sensor 5, which in the example described is located between the optical sensors 3 and 4.
- an electromagnetic sensor 5 which in the example described is located between the optical sensors 3 and 4.
- Detectors 3 and 4 directly provide the time of passage of the coin and the hole through each of them and taking into account that the movement is uniformly accelerated, applying a formula, which is explained below, the rope is calculated with great precision of the hole that is intercepted by the optical detectors.
- the electromagnetic sensor 5 is also sensitive to the existence of a hole in the center of the coin.
- Figures 2, 3 and 4 show the signal produced by the electromagnetic sensor when the hole 2 of the coin passes through it, and it can be seen that as the hole 2 of the coin is larger, there is an increase in the central peak P 2 that provides the electromagnetic sensor signal.
- This electromagnetic sensor will preferably be small in size to achieve greater sensitivity against small hole diameters. An optimal size for this sensor could be 9 mm.
- these sensors must be mounted in a position such that the hole 2 that presents the coin 1 intercepts the electromagnetic sensor 5 and the optical detectors 3 and 4. If there is a coin in which the hole does not pass through the optical detectors, either because of the diameter of the coin or hole dimension, it would not present a special problem, since the resource of the electromagnetic sensor would always remain.
- Figure 5 shows the signals of the two optical photodetectors when a coin passes without a central hole, the upper signal corresponding to the optical sensor 3 and the lower one corresponding to the optical sensor 4. At the moment when the coin intercepts the sensors 3 and 4 the corresponding signals 6 and 6 'are produced, continuous, the second of them of shorter length since, as indicated above, it is assumed that the movement of the coin is uniformly accelerated.
- Figure 6 shows the same signals of a coin as it passes through the optical sensors, but this time due to a coin with a central hole of small dimensions, for example 3 mm. In this case signals 6 and 6 ' produced by sensors 3 and 4 are interrupted in sections 7 and 7 'corresponding to the passage of the central hole through the respective sensors.
- the distance between the two optical sensors 3 and 4 is called d, figure 1.
- an instant tJ is defined which is equidistant from the moments tA and tE corresponding to the moments in which the coin begins to intercept, respectively, the optical sensor 3 and the optical sensor 4.
- An instant tK is defined which is equidistant from the moments tD and tH, which correspond, respectively, to the moments in which the currency stops intercepting the optical sensors 3 and 4.
- the acceleration of currency movement is the difference between the two previously calculated speeds divided by the time elapsed between the moments tJ and tK:
- V (tK) - V (tJ) tH - tD ⁇ E - tA a tK - t tD + tH ⁇ E + tA
- An instant tL is defined which is equidistant from the moments tF and tG, corresponding, respectively, to the moments in which the second optical sensor 4 detects the start and end of the passage of the hole 2 of the coin.
- an instant could be defined that equidistant from the corresponding moments tB and tC, respectively, at the moments in which the first optical sensor 3 detects the beginning and end of the passage of the hole 2 of the coin.
- the signal 8 provided by the electromagnetic sensor 5 is fundamentally affected in its central zone 9, increasing the value of the custom P 2 peak The diameter of the hole grows.
- P 2 is a representative parameter of the hole size. Since the value of P is also sensitive to other features of the coin, such as its alloy or its thickness, it may be of interest to take into account a relative value between peaks, for example P 2 -P 1 , or P 2 - P 3 , or 2XP 2 / P 1 + P 3 . Any of these last three values can be taken as a representative parameter of the hole size, being more stable than the value of the P 2 peak.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Coins (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9806119-4A BR9806119A (pt) | 1997-07-29 | 1998-07-24 | Método para identificação de peças metálicas discoidais com um orifício central. |
AU84421/98A AU8442198A (en) | 1997-07-29 | 1998-07-24 | Message for identifying disc-sheet metal parts having a central orifice |
EP98935035A EP0936578A1 (en) | 1997-07-29 | 1998-07-24 | Message for identifying disc-sheet metal parts having a central orifice |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9701671A ES2127150B1 (es) | 1997-07-29 | 1997-07-29 | Metodo para la identificacion de piezas metalicas discoidales con un orificio central. |
ESP9701671 | 1997-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999006965A1 true WO1999006965A1 (es) | 1999-02-11 |
Family
ID=8300217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1998/000216 WO1999006965A1 (es) | 1997-07-29 | 1998-07-24 | Metodo para la identificacion de piezas metalicas discoidales con un orificio central |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0936578A1 (es) |
AU (1) | AU8442198A (es) |
BR (1) | BR9806119A (es) |
CO (1) | CO4840550A1 (es) |
ES (1) | ES2127150B1 (es) |
PE (1) | PE103499A1 (es) |
WO (1) | WO1999006965A1 (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11410481B2 (en) | 2014-07-09 | 2022-08-09 | Cummins-Allison Corp. | Systems, methods and devices for processing batches of coins utilizing coin imaging sensor assemblies |
US11625968B1 (en) * | 2014-07-25 | 2023-04-11 | Cummins-Allison Corp. | Systems, methods and devices for processing coins with linear array of coin imaging sensors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2170678B1 (es) * | 2000-06-30 | 2003-09-16 | Azkoyen Medios De Pago Sa | Metodo y aparato de obtencion de caracteristicas fisicas de monedas para su identificacion. |
WO2012015984A2 (en) * | 2010-07-27 | 2012-02-02 | Coin Acceptors, Inc. | Detection device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04278692A (ja) * | 1991-03-06 | 1992-10-05 | Toshiba Corp | コインの穴有無判別装置およびコインの穴有無判別方法 |
JPH06119523A (ja) * | 1992-08-20 | 1994-04-28 | Eeone Technol:Kk | 硬貨判別装置 |
EP0694888A1 (de) * | 1994-07-29 | 1996-01-31 | Landis & Gyr Technology Innovation AG | Einrichtung zur Prüfung von Münzen oder flachen Gegenständen |
EP0710933A2 (en) * | 1994-11-03 | 1996-05-08 | Coin Acceptors, Inc. | Coin detection device |
JPH08227471A (ja) * | 1995-02-21 | 1996-09-03 | Glory Ltd | 硬貨識別装置 |
JPH08329302A (ja) * | 1995-05-31 | 1996-12-13 | Oki Electric Ind Co Ltd | コイン識別装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509633A (en) * | 1983-08-24 | 1985-04-09 | Reed Industries, Inc. | Electronic coin validator with improved diameter sensing apparatus |
DE9114313U1 (de) * | 1991-11-16 | 1993-03-18 | National Rejectors, Inc. GmbH, 2150 Buxtehude | Münzprüfer |
-
1997
- 1997-07-29 ES ES9701671A patent/ES2127150B1/es not_active Expired - Fee Related
-
1998
- 1998-07-24 EP EP98935035A patent/EP0936578A1/en not_active Withdrawn
- 1998-07-24 AU AU84421/98A patent/AU8442198A/en not_active Abandoned
- 1998-07-24 WO PCT/ES1998/000216 patent/WO1999006965A1/es not_active Application Discontinuation
- 1998-07-24 BR BR9806119-4A patent/BR9806119A/pt not_active Application Discontinuation
- 1998-07-29 CO CO98043172A patent/CO4840550A1/es unknown
- 1998-07-30 PE PE00068398A patent/PE103499A1/es not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04278692A (ja) * | 1991-03-06 | 1992-10-05 | Toshiba Corp | コインの穴有無判別装置およびコインの穴有無判別方法 |
JPH06119523A (ja) * | 1992-08-20 | 1994-04-28 | Eeone Technol:Kk | 硬貨判別装置 |
EP0694888A1 (de) * | 1994-07-29 | 1996-01-31 | Landis & Gyr Technology Innovation AG | Einrichtung zur Prüfung von Münzen oder flachen Gegenständen |
EP0710933A2 (en) * | 1994-11-03 | 1996-05-08 | Coin Acceptors, Inc. | Coin detection device |
JPH08227471A (ja) * | 1995-02-21 | 1996-09-03 | Glory Ltd | 硬貨識別装置 |
JPH08329302A (ja) * | 1995-05-31 | 1996-12-13 | Oki Electric Ind Co Ltd | コイン識別装置 |
Non-Patent Citations (5)
Title |
---|
"COIN RECOGNITION DEVICE", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 31, no. 11, April 1989 (1989-04-01), pages 45/46, XP000024087 * |
PATENT ABSTRACTS OF JAPAN vol. 17, no. 76 (P - 1487) 16 February 1993 (1993-02-16) * |
PATENT ABSTRACTS OF JAPAN vol. 18, no. 409 (P - 1779) 29 July 1994 (1994-07-29) * |
PATENT ABSTRACTS OF JAPAN vol. 97, no. 1 31 January 1997 (1997-01-31) * |
PATENT ABSTRACTS OF JAPAN vol. 97, no. 4 30 April 1997 (1997-04-30) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11410481B2 (en) | 2014-07-09 | 2022-08-09 | Cummins-Allison Corp. | Systems, methods and devices for processing batches of coins utilizing coin imaging sensor assemblies |
US11625968B1 (en) * | 2014-07-25 | 2023-04-11 | Cummins-Allison Corp. | Systems, methods and devices for processing coins with linear array of coin imaging sensors |
Also Published As
Publication number | Publication date |
---|---|
AU8442198A (en) | 1999-02-22 |
ES2127150B1 (es) | 1999-11-16 |
CO4840550A1 (es) | 1999-09-27 |
ES2127150A1 (es) | 1999-04-01 |
EP0936578A1 (en) | 1999-08-18 |
PE103499A1 (es) | 1999-11-02 |
BR9806119A (pt) | 1999-08-31 |
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