EP0543212A1 - Dispositif de test pour déterminer la dureté de pièces de monnaie - Google Patents

Dispositif de test pour déterminer la dureté de pièces de monnaie Download PDF

Info

Publication number
EP0543212A1
EP0543212A1 EP92118793A EP92118793A EP0543212A1 EP 0543212 A1 EP0543212 A1 EP 0543212A1 EP 92118793 A EP92118793 A EP 92118793A EP 92118793 A EP92118793 A EP 92118793A EP 0543212 A1 EP0543212 A1 EP 0543212A1
Authority
EP
European Patent Office
Prior art keywords
coin
sensor
checking device
coin checking
coins
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
EP92118793A
Other languages
German (de)
English (en)
Other versions
EP0543212B1 (fr
Inventor
Hans-Ulrich Cohrs
Wilfried Meyer
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.)
Crane Payment Innovations GmbH
Original Assignee
National Rejectors Inc GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6445125&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0543212(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by National Rejectors Inc GmbH filed Critical National Rejectors Inc GmbH
Publication of EP0543212A1 publication Critical patent/EP0543212A1/fr
Application granted granted Critical
Publication of EP0543212B1 publication Critical patent/EP0543212B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/06Testing the hardness or elasticity

Definitions

  • the invention relates to a coin testing device according to the preamble of claim 1.
  • a device in which a coin falls along a predetermined distance and strikes a piezoelectric means which is connected to a mass determination device in order to determine the mass of the coin from its impact on the piezoelectric means .
  • the mass determination device has an integrator for integrating the output signal of the piezoelectric means and for generating a signal proportional to the coin mass.
  • an impact absorption device connected to the piezoelectric means can be provided.
  • the measurement of the intrinsic vibration of the coin can be combined with a sensor, which is the striking means, so that the output signal of the sensor, which can have a piezoelectric element, with the other coin information is used for coin recognition.
  • a sensor which is the striking means
  • the output signal of the sensor which can have a piezoelectric element
  • Different coin types can be differentiated using different voltage peaks and the voltage curve of the output signal.
  • Such test devices with mass and resonance frequency determination are known from EP-A 0 318 229 and EP-A 0 356 582.
  • the coin checking device described in DE-GM 90 13 836 therefore provides as a coin acceptance criterion to determine the gradient of at least part of the output signal generated by the impact of a coin on a sensor by means of a differentiating circuit and to compare it with a predetermined value.
  • an energy absorbing element is provided, the material of the element being selected such that the impulse of the coin is essentially absorbed in order to prevent the coin from jumping up.
  • the impact of the coin on the element causes vibration not only in the element itself, but also in the surrounding parts of the testing device.
  • the acceptance criterion is the coin mass and / or the coin properties which influence the natural vibration of the coin. These jointly recorded properties include the weight, thickness, size and material of the coin.
  • the disadvantage is that counterfeit coins that are identical in weight to the originals in question cannot be reliably identified. If the thickness and diameter of the counterfeit coin also match a real coin, a distinction with the known test facilities is no longer guaranteed.
  • the invention is therefore based on the object of providing a coin checking device for determining the hardness of coins which reliably distinguishes false and genuine coins, the hardness measurement not being significantly influenced by the other coin properties such as weight, diameter, thickness or embossing.
  • the coin checking device has a sensor on which the coin strikes and evaluation electronics, the stop face of the sensor being relatively hard.
  • the duration of contact of the coin with the stop surface of the sensor serves as a criterion for the hardness determination, the evaluation electronics determining the period of time that lies between the original value of the output signal of the sensor when the coin was struck and a re-approximation of the output signal to the original value, and compares this period with a given value.
  • the time period resulting from the time the coin was struck on the sensor and the time the coin jumped off the sensor is a reliable measure of the hardness of the coin, since this time period is essentially determined by the elastic and, in the case of very soft materials such as lead, plastic coin behavior or by the spring constant of the coin and by the predetermined spring constant of the sensor.
  • This period is detected by determining the approximation of the output signal to the original value that was present at the time the coin was struck on the sensor.
  • the hardness of the stop surface of the sensor must be sufficiently high, at least greater than that of the coin material, so that the coin vibration generated and detected by the sensor is largely dependent on the coin hardness and only to a small extent on other factors such as coin weight, speed or sensor geometry.
  • the striking of the coin against the sensor can be an impact on the sensor after the coin has fallen freely or a striking after the movement of the coin, e.g. along an inclined plane.
  • the senor has a piezoelectric element, the voltage generated by a mechanical force being tapped.
  • This output signal can be fed via a circuit to an amplifier to which a known electronic evaluation system is connected, which covers the period between the First zero voltage at the time the coin strikes the sensor and a second zero voltage at the time the coin jumps off the sensor.
  • known means such as data converter, memory, comparator and microprocessor being used.
  • Another embodiment of the invention provides for an electrically conductive film to be arranged adjacent to the sensor in the coin channel.
  • the film is connected to a high-frequency generator, so that an RF voltage generated by the generator can be capacitively coupled to the coin via the film.
  • the sensor is a contact pin that is connected to a resistor. For the duration of the galvanic contact between the coin and the contact pin, the voltage coupled to the coin at the resistor 14 drops. This period serves as a hardness criterion and is determined by the evaluation electronics described above after rectifying the voltage by means of a rectifier.
  • the stop surface of the sensor can be point-shaped or line-shaped, so that the contact surface "sensor coin” is minimized.
  • the stop surface can be, for example, a steel ball that the coin hits, or an upper section of the contact pin.
  • the sensor can be supported on a counter block, e.g. a steel block.
  • a further embodiment of the invention provides that the sensor at least partially protrudes into the coin track representing an inclined plane, so that different coin insertion speeds are at least partially compensated for.
  • the coin checking device can reliably distinguish false coins, which consist, for example, of relatively soft material such as lead or a lead alloy, from original coins made of relatively hard material, for example CuNi 25.
  • the time period determined by the evaluation electronics is about 2 to 6 times longer in the first case than in the second case, whereas the influence of coin mass, speed and sensor geometry moves within 1/3 of the measurement signal. This means that the hardness of the coin material is clearly determined, which guarantees a reliable separation of originals and counterfeits.
  • a sensor 3 protrudes into the coin track with its stop surface 4, which represents a steel ball.
  • a piezoelectric element 5 is arranged beneath the steel ball, which is firmly connected to the steel ball and is itself supported on a counter block 6 made of steel.
  • the evaluation electronics determines the period t1-t0, where t0 is the time when the coin hits the sensor 3, and t1 the time when the coin jumps off the steel ball 4.
  • the measured period of time is compared with a predetermined value, an acceptance signal for the tested coin being generated as a function of this comparison and the acceptance criterion being the coin hardness.
  • An electrically conductive film 10 is arranged in the area of a sensor 3 '.
  • the sensor 3 ' is a contact pin which projects with its stop surface 11 into the coin track.
  • the contact pin is supported on a counter block 6 '.
  • an RF voltage generated by an RF generator 12 (FIG. 5) is capacitively coupled onto the coin via the film 10. If the coin touches the contact pin 3 ', the voltage coupled to the coin drops across a resistor 13 for the duration of the galvanic contact between the coin and the contact pin. This voltage is rectified by means of a rectifier 14, as a result of which the voltage curve according to FIG. 6 arises.
  • evaluation electronics 9 ' determine the time period t0 to t i , which corresponds to the contact time of the coin 1' with the stop surface 11 of the sensor 3 '. The further evaluation takes place as described above for the first embodiment. Likewise, the measured time periods t'0 to t ' i essentially coincide with the time periods in Examples 1 to 4 for the embodiment according to FIGS. 1 to 3, so that an exact determination of the hardness of coins is also possible with the second embodiment.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
EP92118793A 1991-11-19 1992-11-03 Dispositif de test pour déterminer la dureté de pièces de monnaie Expired - Lifetime EP0543212B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4138018A DE4138018C1 (fr) 1991-11-19 1991-11-19
DE4138018 1991-11-19

Publications (2)

Publication Number Publication Date
EP0543212A1 true EP0543212A1 (fr) 1993-05-26
EP0543212B1 EP0543212B1 (fr) 1995-09-27

Family

ID=6445125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118793A Expired - Lifetime EP0543212B1 (fr) 1991-11-19 1992-11-03 Dispositif de test pour déterminer la dureté de pièces de monnaie

Country Status (3)

Country Link
EP (1) EP0543212B1 (fr)
DE (2) DE4138018C1 (fr)
ES (1) ES2078628T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995026540A1 (fr) * 1994-03-29 1995-10-05 Mars Incorporated Validation de pieces de monnaie
WO1998020464A1 (fr) * 1996-11-05 1998-05-14 Inversiones Taconera, S.L. Systeme de tri de pieces de monnaie
EP0977158A2 (fr) 1998-07-09 2000-02-02 Mars Incorporated Procédé et appareil de vérification de la validité de pièces de monnaie
US6425471B1 (en) 1999-08-18 2002-07-30 Jofemar, S.A. Coin selector
US7025190B2 (en) 2002-07-19 2006-04-11 Mars, Incorporated Coin validation by signal processing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503765C1 (de) * 1995-02-04 1996-05-02 Nat Rejectors Gmbh Münzgerät mit einer Vorrichtung zur Härtebestimmung von Münzen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879982A (en) * 1972-10-16 1975-04-29 Ernst Schmidt Method and apparatus for testing hardness of specimens
WO1983000400A1 (fr) * 1981-07-23 1983-02-03 Meyer, Peter Procede de classification de pieces de monnaie par rapport a leur elasticite mecanique
DE3237457A1 (de) * 1982-10-07 1984-04-12 Bally Wulff Automaten GmbH, 1000 Berlin Muenzpruef- und -bewertungseinrichtung
DE9202944U1 (de) * 1992-03-06 1992-06-11 National Rejectors Inc. Gmbh, 2150 Buxtehude Sensorkombination zum Prüfen von Münzen in einem Münzprüfer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173624B (en) * 1985-04-08 1988-12-14 Qonaar Corp Low power coin discrimination apparatus
EP0356582A1 (fr) * 1988-08-05 1990-03-07 THE GENERAL ELECTRIC COMPANY, p.l.c. Identification d'objets
GB8727526D0 (en) * 1987-11-24 1987-12-23 Plessey Co Plc Coin determination
CH670167A5 (fr) * 1987-12-31 1989-05-12 Automaten Ag
GB2236609B (en) * 1989-10-04 1993-10-20 Mars Inc Method and apparatus for coin validation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879982A (en) * 1972-10-16 1975-04-29 Ernst Schmidt Method and apparatus for testing hardness of specimens
WO1983000400A1 (fr) * 1981-07-23 1983-02-03 Meyer, Peter Procede de classification de pieces de monnaie par rapport a leur elasticite mecanique
DE3237457A1 (de) * 1982-10-07 1984-04-12 Bally Wulff Automaten GmbH, 1000 Berlin Muenzpruef- und -bewertungseinrichtung
DE9202944U1 (de) * 1992-03-06 1992-06-11 National Rejectors Inc. Gmbh, 2150 Buxtehude Sensorkombination zum Prüfen von Münzen in einem Münzprüfer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS Section EI, Week 8748, Derwent Publications Ltd., London, GB; Class S, AN 87341181 & SU-A-1 307 295 (AS BELO APPLD PHYS) *
SOVIET PATENTS ABSTRACTS Section EI, Week 9107, Derwent Publications Ltd., London, GB; Class S, AN 91050305 & SU-A-1 573 393 (CORRESP POLY) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995026540A1 (fr) * 1994-03-29 1995-10-05 Mars Incorporated Validation de pieces de monnaie
GB2288266A (en) * 1994-03-29 1995-10-11 Mars Inc Coin validation
GB2288266B (en) * 1994-03-29 1997-07-02 Mars Inc Coin validation
US5797475A (en) * 1994-03-29 1998-08-25 Mars Incorporated Coin validation
WO1998020464A1 (fr) * 1996-11-05 1998-05-14 Inversiones Taconera, S.L. Systeme de tri de pieces de monnaie
ES2114831A2 (es) * 1996-11-05 1998-06-01 Inversiones Taconera S L Sistema discriminador de monedas.
US6059089A (en) * 1996-11-05 2000-05-09 Inversiones Taconera, S.L. Coin discriminator system
AU732168B2 (en) * 1996-11-05 2001-04-12 Inversiones Taconera, S.L. Coin discriminating system
EP0977158A2 (fr) 1998-07-09 2000-02-02 Mars Incorporated Procédé et appareil de vérification de la validité de pièces de monnaie
US6425471B1 (en) 1999-08-18 2002-07-30 Jofemar, S.A. Coin selector
US7025190B2 (en) 2002-07-19 2006-04-11 Mars, Incorporated Coin validation by signal processing

Also Published As

Publication number Publication date
DE4138018C1 (fr) 1992-11-05
EP0543212B1 (fr) 1995-09-27
ES2078628T3 (es) 1995-12-16
DE59203835D1 (de) 1995-11-02

Similar Documents

Publication Publication Date Title
DE2935539C2 (fr)
DE69213019T2 (de) Vorrichtung zum unterscheiden von münzen
DE69420335T2 (de) Verfahren und Gerät zur Echtheitskontrolle von Objekten
DE2350990C2 (fr)
DE68914030T2 (de) Münzprüfer.
DE2630228A1 (de) Messvorrichtung zum messen von dickenunterschieden in aufzeichnungstraegern, wie banknoten und dergleichen
DE69425758T2 (de) Münzprüfer mit offset-null-spulen
WO1995024024A1 (fr) Procede et dispositif de reconnaissance de pieces de monnaie
DE69509607T2 (de) Münzprüfung
EP0543212B1 (fr) Dispositif de test pour déterminer la dureté de pièces de monnaie
DE3783077T2 (de) Muenzbehandlungsvorrichtung.
DE2825094A1 (de) Verfahren und vorrichtung zur raendelpruefung von muenzen
EP2040227B1 (fr) Procédé de vérification de pièces de monnaie
DE2716740A1 (de) Vorrichtung zur automatischen, beruehrungsfreien pruefung von muenzen auf echtheit und/oder nennwert und/oder zur rechnergefuehrten parameterauswertung
EP0704825B1 (fr) Dispositif pour déterminer l'authenticité de pièces de monnaie, de jetons ou d'autres objets métalliques plats
DE69115246T2 (de) Vorrichtung und verfahren zum erlangen der mechanische eigenschaften von münzen.
EP0725374B1 (fr) Contrôleur de pièces de monnaie avec dispositif pour vérifier la dureté
EP0038911B1 (fr) Procédé et dispositif de contrôle de validité de pièces de monnaie
DE4339543C2 (de) Verfahren zur Prüfung von Münzen
DE69403454T2 (de) Münzverarbeitungsvorrichtung und verfahren zum bestimmen von daten bezüglich sich bewegender münzen
DE9013836U1 (de) Vorrichtung zur Münzprüfung
DE4233194C2 (de) Verfahren zum Eichen eines mindestens eine Münze akzeptierenden Münzprüfers und Eichmodul
EP0818758A2 (fr) Dispositif pour déterminer la validité de pièces de monnaie, jetons ou autres objets métalliques plats
DE9202944U1 (de) Sensorkombination zum Prüfen von Münzen in einem Münzprüfer
DE102004038153B4 (de) Verfahren zur Prüfung von Münzen auf Echtheit in einem Münzgerät

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19930928

17Q First examination report despatched

Effective date: 19940915

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19950927

REF Corresponds to:

Ref document number: 59203835

Country of ref document: DE

Date of ref document: 19951102

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19951106

Year of fee payment: 4

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2078628

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19951216

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: MARS INCORPORATED

Effective date: 19960627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19961104

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

EUG Se: european patent has lapsed

Ref document number: 92118793.6

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19981205

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20060921

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061130

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20061201

Year of fee payment: 15

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20071031

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060928

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080930

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20071105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071130

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071105

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20081103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081103

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110107

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59203835

Country of ref document: DE

Effective date: 20120601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601