EP1233380A2 - Verfahren zur Erfassung der Betätigung eines Münzrückgabemechanismus in Münzprüfern - Google Patents
Verfahren zur Erfassung der Betätigung eines Münzrückgabemechanismus in Münzprüfern Download PDFInfo
- Publication number
- EP1233380A2 EP1233380A2 EP02001303A EP02001303A EP1233380A2 EP 1233380 A2 EP1233380 A2 EP 1233380A2 EP 02001303 A EP02001303 A EP 02001303A EP 02001303 A EP02001303 A EP 02001303A EP 1233380 A2 EP1233380 A2 EP 1233380A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coin
- damping
- curves
- generated
- return signal
- 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
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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
- 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
- G07D5/08—Testing the magnetic or electric properties
Definitions
- the invention relates to a method for detecting the actuation of a Coin return mechanism in coin validators according to the preamble of the claim 1.
- the so-called raceway support plate is one wall of the coin channel through which the coins to be checked run along in the coin validator, designed to be pivoted away, thus jammed coins or in the event of a coin jam the coins can be discharged to a return channel.
- a so-called return lever usually serves as a pivotable raceway support plate, which can be operated either mechanically by hand or electromechanically. It is for Monitoring the operation of a machine is desirable when the computer the coin validator receives a signal as soon as the return is activated, or was pressed. On the one hand, coin acceptance is stopped until the Track carrier plate is pivoted away, on the other hand, the return signal serves as Interference signal. A frequent occurrence of the return signal is an indication that it is there is a malfunction. Remedial action is then required.
- DE 197 26 449 describes a method for checking coins with an inductive one working sensor arrangement has become known, which has a primary and a secondary coil has between which the coin to be checked passes.
- the Transmit signal is divided into a number of periodically recurring sections Switching steps divided, and from the values of the received signal of the secondary coil are repeated here with the frequency of the transmission signal Switching steps envelope curves formed.
- An evaluation device forms from the Number of envelopes generated at the same time for at least one criterion Generation of the acceptance signal.
- the known method is based on the knowledge that that different attenuations in a field at different frequencies be brought about by a coin. Lower frequencies cause the field to move extends fully or largely through the coin, while higher Frequencies lead to a so-called skin effect, i.e. the field penetrates only minimally into the coin. With different frequencies can therefore be different Characteristics of the coins are measured, for example the thickness of the Coins with lower frequencies and an embossed image with higher frequencies.
- the invention has for its object a method for actuating a Specify coin return mechanism in coin validators, where only one sensor sufficient to indicate that the return mechanism is actuated Generate return signal and the return signal relatively quickly and already at small changes in distance is generated.
- each probe is a primary and has a secondary coil.
- a single one Coil to generate two or more damping curves due to different Frequencies of the transmission signal are caused to the same extent as this is the case in the prior art. Therefore, the invention is not limited to use of the known sensor in construction, but includes both one after the sensor principle working sensor arrangement as well as one in which a coil is arranged only on one side of the coin channel.
- damping curves there are various possibilities with regard to the damping curves the discrimination of coin dampening on the one hand and "return dampening" on the other evaluate.
- Another embodiment of the invention provides that the slope of the rising Edges of the damping curves are compared and a return signal is generated, if the difference in the slopes is smaller than a predetermined value.
- a third embodiment provides that the time difference is determined when two or more curves reach a predetermined threshold. A return signal is generated when this time difference is below a specified value is. All three methods given are based on the knowledge that the difference the amplitudes, and the slopes and / or the time difference to reach a Threshold almost goes to zero when the damping curves are opened by opening the Raceway support plate are generated.
- the return signal is generated becomes, when measured values of the damping curves at a certain point in time lie within a predetermined measurement range.
- the increasing Flanks of the damping curves can be evaluated or subsequent curves.
- a return signal can also be generated if the time period the measured value or damping curves above the threshold a predetermined Value exceeds.
- the change in the measured values when the track carrier plate is opened happens relatively quickly in relation to the time that a coin is needs to pass through a probe or past it. The latter time is approximately 50 ms, a multiple of the opening time of the track carrier plate.
- the raceway support plate will be in the pivoted away state much longer held as the lead time of a coin. Will therefore be over a longer period a maximum is measured with a damping curve or becomes longer Time values determined above a threshold value, this is also an indication that that the measured values are due to actuation of the return lever.
- measuring principle which is the basis of the method to be described, is known from DE 42 24 104. It is expressly based on this state of the art Referred. He starts from the knowledge that at different frequencies of a magnetic field different attenuations during the passage a coin caused by the field. As mentioned earlier, doesn't matter whether the field is between a primary or a secondary coil is located or generated by a coil arrangement which on one side of the Coin channel is arranged.
- the causative or broadcast signal that is preferred a square or a triangular signal is divided into a number by suitable means divided by switching steps. Because the causing or broadcast signal is a periodic This subdivision takes place again and again.
- I'm evaluating or receive signal are then carried out synchronously with the switching steps, and from the measurements, envelopes are formed, which are the Show damping curves for the different frequencies. So it is possible with the help of a coil arrangement and a coin nine or more damping curves generate more or less strong in their course from each other deviate, as indicated by curves 1 to 9 in Fig. 1. How recognizable the damping curves 1 to 9 have different rising edges and different ones Maxima. It is therefore possible to use a probe or a coil arrangement to determine different properties of a coin. So it takes not a variety of probes to represent the different properties.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Coins (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
- Fig. 1
- zeigt ein Diagramm von Dämpfungskurven beim Einwurf einer Münze.
- Fig. 2
- zeigt stark vergrößert die Dämpfungskurven beim Öffnen des Laufbahnträgerplatte bzw. bei Betätigung des Rückgabehebels.
Claims (6)
- Verfahren zur Erfassung der Betätigung eines Münzrückgabemechanismus in Münzprüfern, die einen vom Münzrückgabemechanismus zu öffnenden Münzkanal aufweisen, den die Münzen durchlaufen sowie mindestens einer induktiven Meßsonde zur Prüfung mindestens einer physikalischen Eigenschaft der Münzen, wobei in der Meßsonde mindestens zwei verschiedene Dämpfungssignalverläufe (Dämpfungskurven) bei unterschiedlichen Frequenzen beim Durchlauf einer Münze erzeugt werden zur Bestimmung der physikalischen Eigenschaft, gekennzeichnet durch folgende Schritte:es wird festgestellt, wenn mindestens eine Dämpfungskurve einen vorgegebenen Schwellwert erreicht,es werden mindestens zwei Dämpfungskurven bzw. charakteristische Werte der Dämpfungskurven in Beziehung gesetzt undes wird ein Rückgabesignal erzeugt, wenn die Beziehung von einer vorgegebenen Beziehung abweicht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Maxima der Dämpfungskurven verglichen werden, und es wird ein Rückgabesignal erzeugt, wenn ihre Differenz kleiner als der vorgegebener Wert ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Steigung der ansteigenden Flanken der Dämpfungskurven verglichen und ein Rückgabesignal erzeugt wird, wenn die Differenz der Steigungen kleiner als ein vorgegebener Wer ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zeit gemessen wird, wenn zwei oder mehr Dämpfungskurven einen vorgegebenen Schwellwert erreichen und ein Rückgabesignal erzeugt wird, wenn die Zeitdifferenz unterhalb eines vorgegebenen Wertes ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Rückgabesignal erzeugt wird, wenn zu einem bestimmten Zeitpunkt gemessene Werte der Dämpfungskurven innerhalb eines vorgegebenen Meßwertbandes liegen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Rückgabesignal erzeugt wird, wenn die Dämpfungskurve eine vorgegebene Zeit oberhalb des Schwellwertes verläuft.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10106704 | 2001-02-14 | ||
DE2001106704 DE10106704A1 (de) | 2001-02-14 | 2001-02-14 | Verfahren zur Erfassung der Betätigung eines Münzrückgabemechanismus in Münzprüfern |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1233380A2 true EP1233380A2 (de) | 2002-08-21 |
EP1233380A3 EP1233380A3 (de) | 2005-09-14 |
EP1233380B1 EP1233380B1 (de) | 2008-01-09 |
Family
ID=7673925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020001303 Expired - Lifetime EP1233380B1 (de) | 2001-02-14 | 2002-01-18 | Verfahren zur Erfassung der Betätigung eines Münzrückgabemechanismus in Münzprüfern |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1233380B1 (de) |
DE (2) | DE10106704A1 (de) |
ES (1) | ES2295246T3 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4690263A (en) * | 1983-11-08 | 1987-09-01 | Fuji Electric Co., Ltd. | Coin refund signal generator |
JPH02217986A (ja) * | 1989-02-17 | 1990-08-30 | Fuji Electric Co Ltd | 電子式硬貨選別装置の硬貨返却信号発生装置 |
EP0509146A2 (de) * | 1991-04-16 | 1992-10-21 | Kabushiki Kaisha Nippon Conlux | Münzverarbeitungsvorrichtung |
DE4224104A1 (de) * | 1991-08-08 | 1993-02-11 | Azkoyen Ind Sa | Verfahren zur erfassung der betaetigung eines muenzrueckfuehrmechanismus bei pruefgeraeten |
EP0886247A2 (de) * | 1997-06-21 | 1998-12-23 | National Rejectors Inc. GmbH | Verfahren und Schaltungsanordnung zur Prüfung von Münzen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4339543C2 (de) * | 1993-11-19 | 1998-07-23 | Nat Rejectors Gmbh | Verfahren zur Prüfung von Münzen |
DE19702986C2 (de) * | 1997-01-28 | 1999-06-02 | Nat Rejectors Gmbh | Münzprüfvorrichtung |
-
2001
- 2001-02-14 DE DE2001106704 patent/DE10106704A1/de not_active Withdrawn
-
2002
- 2002-01-18 DE DE50211493T patent/DE50211493D1/de not_active Expired - Lifetime
- 2002-01-18 ES ES02001303T patent/ES2295246T3/es not_active Expired - Lifetime
- 2002-01-18 EP EP20020001303 patent/EP1233380B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4690263A (en) * | 1983-11-08 | 1987-09-01 | Fuji Electric Co., Ltd. | Coin refund signal generator |
JPH02217986A (ja) * | 1989-02-17 | 1990-08-30 | Fuji Electric Co Ltd | 電子式硬貨選別装置の硬貨返却信号発生装置 |
EP0509146A2 (de) * | 1991-04-16 | 1992-10-21 | Kabushiki Kaisha Nippon Conlux | Münzverarbeitungsvorrichtung |
DE4224104A1 (de) * | 1991-08-08 | 1993-02-11 | Azkoyen Ind Sa | Verfahren zur erfassung der betaetigung eines muenzrueckfuehrmechanismus bei pruefgeraeten |
EP0886247A2 (de) * | 1997-06-21 | 1998-12-23 | National Rejectors Inc. GmbH | Verfahren und Schaltungsanordnung zur Prüfung von Münzen |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN Bd. 014, Nr. 521 (P-1131), 15. November 1990 (1990-11-15) & JP 02 217986 A (FUJI ELECTRIC CO LTD), 30. August 1990 (1990-08-30) * |
Also Published As
Publication number | Publication date |
---|---|
EP1233380B1 (de) | 2008-01-09 |
EP1233380A3 (de) | 2005-09-14 |
ES2295246T3 (es) | 2008-04-16 |
DE50211493D1 (de) | 2008-02-21 |
DE10106704A1 (de) | 2002-08-29 |
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