EP1519328A1 - Light barrier in a coin accepting device - Google Patents
Light barrier in a coin accepting device Download PDFInfo
- Publication number
- EP1519328A1 EP1519328A1 EP04021756A EP04021756A EP1519328A1 EP 1519328 A1 EP1519328 A1 EP 1519328A1 EP 04021756 A EP04021756 A EP 04021756A EP 04021756 A EP04021756 A EP 04021756A EP 1519328 A1 EP1519328 A1 EP 1519328A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coin
- light barrier
- diode
- control
- transmitting
- 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
Links
- 230000004888 barrier function Effects 0.000 title claims description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 claims description 8
- 230000005693 optoelectronics Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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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
Definitions
- the invention relates to a light barrier in a coin device after the Claim 1.
- a Photocells are known to consist of a transmitting and a photosensitive Receiving element, and the receiving element registers, if that of the transmitting element, For example, a transmitting diode, outgoing light is interrupted. So such a photoelectric barrier z. B. as presence sensor in a Münzprüfêt be used.
- coin storage tubes contains in which coins of lower values are sorted and out which coins are paid out as change. It is for the integrity Operation required to monitor the level in coin tubes. For one thing a minimum level has been determined as well as a maximum level. In the former Case, it must be ensured that the operator of a machine is indicated, that a bill of exchange return is not possible (direct price). In the second case must Overfilling the tube can be prevented to jamming the coins avoid. It is also known, also between the lower and upper end of a Münztube a light barrier to order. The latter serves to increase the level in correct the tube if necessary, if the actually measured not with the registered matches. The sorting into and the payment of coins from a coin tube is monitored by a tube counter. It can happen that this monitoring is faulty. It is therefore necessary that in the memory of the Processor for the coin machine to correct each existing number of coins.
- the invention is therefore based on the object, a light barrier in one To run coin device so that their function is monitored.
- the input of the transmitting diode to a Monitoring circuit connected, in turn, with a control and evaluation device connected is.
- the signal of the photosensitive receiving element will not be processed if it is below or above a given Voltage band is located.
- the Transmitting diodes of a light barrier with coin validators not continuously with To apply voltage, but only from time to time for a short time.
- the transmitter diode connected to a voltage source. Only in this case, the transmitter diode begins To give off light, for example in the infrared range. If the photosensitive Receiving element is not covered, this outputs an output signal. in the In other case, this outputs no or another output signal, the corresponding in the control and evaluation device is processed. If at the diode a short circuit or an interruption, the potential changes at the input of the Transmitting diode and lies outside of a voltage band, which is normally complied with when the transmitter diode is operating correctly.
- the invention is preferably applicable in one embodiment of the invention the level measurement in coin tubes. Therefore, with the aid of the invention Effectively avoid errors when correcting a tube counter.
- Another application provides according to the invention that the light barrier for Diameter determination is used in a coin validator.
- the monitoring circuit a photoelectric sensor to determine the end position of an engine to apply, the the issue of coins from the coin tubes accomplished.
- the single figure shows a circuit example according to the invention.
- a light barrier is shown, consisting of a light-emitting Diode D1, the z. B. emits infrared light, and a photosensitive transistor Tl.
- a light barrier is z. B. provided on a coin tube of a Money changer for determining the level of coins in the coin tube.
- Each coin tube has two or three such light barriers. But it is also conceivable, such a light barrier for determining the presence of all To provide coins in a coin device or to determine the end position a motor for a payout device from a coin tube or the like.
- Such photocells are not permanently switched on, but periodically.
- the connection is made via a switching transistor T2, which has a resistor and connected to an activation line A1.
- the activation line is connected to a suitable voltage source. This applies to the diode D1 a Voltage U1, wherein a portion of the voltage across the resistor W2 drops.
- the photosensitive Transistor T1 is connected to an output line Q1 connected to a control and evaluation device, not shown, leads.
- the control and evaluation device asks in time with the activation of the transmitting diode D1, the line Q1 to determine if the distance between transmitter diode D1 and transistor T1 free or interrupted by an object.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Testing Of Coins (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Lichtschranke in einem Münzgerät nach dem Anspruch 1.The invention relates to a light barrier in a coin device after the Claim 1.
Es ist bekannt, an mehreren Orten in Münzgeräten Lichtschranken anzuordnen. Eine Lichtschranke besteht bekanntlich aus einem Sende- und einem lichtempfindlichen Empfangselement, und das Empfangselement registriert, wenn das vom Sendeelement, beispielsweise einer Sendediode, ausgehende Licht unterbrochen wird. So kann eine derartige Lichtschranke z. B. als Anwesenheitsfühler in einem Münzprüfgerät eingesetzt werden.It is known to arrange light barriers in several places in coin devices. A Photocells are known to consist of a transmitting and a photosensitive Receiving element, and the receiving element registers, if that of the transmitting element, For example, a transmitting diode, outgoing light is interrupted. So such a photoelectric barrier z. B. as presence sensor in a Münzprüfgerät be used.
Vielen Münzprüfgeräten ist ein Geldwechsler zugeordnet, der in der Regel Münzspeichertuben enthält, in welche Münzen niedriger Werte einsortiert werden und aus welchen Münzen als Wechselgeld ausgezahlt werden. Es ist für den einwandfreien Betrieb erforderlich, den Füllstand in Münztuben zu überwachen. Zum einen wird ein Mindestfüllstand festgestellt sowie auch ein maximaler Füllstand. Im ersteren Fall muß dafür gesorgt werden, daß dem Bediener eines Automaten angezeigt ist, daß eine Wechselgeldrückgabe nicht möglich ist (Direktpreis). Im zweiten Fall muß eine Überfüllung der Tube verhindert werden, um ein Verklemmen der Münzen zu vermeiden. Es ist ferner bekannt, auch zwischen unterem und oberem Ende einer Münztube eine Lichtschranke anzuordnen. Die letztere dient dazu, den Füllstand in der Tube ggf. zu korrigieren, wenn der tatsächlich gemessene nicht mit dem registrierten übereinstimmt. Die Einsortierung in und die Auszahlung von Münzen aus einer Münztube wird von einem Tubenzähler überwacht. Es kann geschehen, daß diese Überwachung fehlerhaft ist. Es ist daher erforderlich, die im Speicher des Prozessors für das Münzgerät jeweils vorhandene Zahl von Münzen zu korrigieren. Many coin validators have a money changer associated with them, usually coin storage tubes contains in which coins of lower values are sorted and out which coins are paid out as change. It is for the impeccable Operation required to monitor the level in coin tubes. For one thing a minimum level has been determined as well as a maximum level. In the former Case, it must be ensured that the operator of a machine is indicated, that a bill of exchange return is not possible (direct price). In the second case must Overfilling the tube can be prevented to jamming the coins avoid. It is also known, also between the lower and upper end of a Münztube a light barrier to order. The latter serves to increase the level in correct the tube if necessary, if the actually measured not with the registered matches. The sorting into and the payment of coins from a coin tube is monitored by a tube counter. It can happen that this monitoring is faulty. It is therefore necessary that in the memory of the Processor for the coin machine to correct each existing number of coins.
Bei ungenügender Funktion des Sendeelements, beispielsweise einem Ausfall oder einem Kurzschluß oder einer sonstigen Störung, wird dies vom Empfangselement als Abdeckung durch eine Münze oder einen sonstigen Gegenstand gewertet. Bei der Korrektur von Tubenzählern kommt es daher zu falschen Werten.In case of insufficient function of the transmitting element, such as a failure or a short circuit or other fault, this is the receiving element counted as a cover by a coin or other object. In the Correction of tube counters therefore leads to incorrect values.
Aus US 5,458,536 ist eine Schaltungsanordnung bekannt geworden zur Aktivierung und Abfrage einer Vielzahl von Lichtschranken für mehrere Münztuben eines Geldwechslers. Die lichtempfindlichen Elemente einer Münztube sind mit einer Abfrageleitung verbunden, so daß die Anzahl der Abfrageleitungen der Anzahl der Münztuben entspricht. Die Aktivierungsleitungen für die Sendediode sind so geschaltet, daß alle Lichtschranken eines Niveaus für alle Münztuben mit einer gemeinsamen Aktivierungsleitung verbunden sind. Auf diese Weise ist eine matrixartige Ansteuerung und Abfrage der Lichtschranken möglich, was den Schaltungsaufwand minimiert.From US 5,458,536 a circuit arrangement has become known for activation and interrogation of a plurality of light barriers for a plurality of coin tubes of a Money changer. The photosensitive elements of a coin tube are with a Detection line connected, so that the number of query lines the number of Coin tubes corresponds. The activation lines for the transmitting diode are so switched that all photocells of a level for all Münztuben with a common activation line are connected. That way is one matrix-like control and interrogation of the photocells possible what the circuit complexity minimized.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Lichtschranke in einem Münzgerät so auszuführen, daß ihre Funktion überwacht wird.The invention is therefore based on the object, a light barrier in one To run coin device so that their function is monitored.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.
Bei der erfindungsgemäßen Lichtschranke ist der Eingang der Sendediode an eine Überwachungsschaltung angeschlossen, die ihrerseits mit einer Steuer- und Auswertevorrichtung verbunden ist. Das Signal des lichtempfindlichen Empfangselements wird nicht verarbeitet, wenn es unterhalb oder oberhalb eines vorgegebenen Spannungsbandes liegt.In the light barrier according to the invention, the input of the transmitting diode to a Monitoring circuit connected, in turn, with a control and evaluation device connected is. The signal of the photosensitive receiving element will not be processed if it is below or above a given Voltage band is located.
Aus Energiespargründen und zur Verlängerung der Standzeit ist es üblich, die Sendedioden einer Lichtschranke bei Münzprüfern nicht kontinuierlich mit Spannung zu beaufschlagen, sondern nur von Zeit zu Zeit kurzzeitig. Hierfür wird eine Aktivierungsleitung verwendet, die ggf. über einen Schalttransistor die Sendediode an eine Spannungsquelle anschließt. Erst in diesem Fall beginnt die Sendediode Licht abzugeben, beispielsweise im Infrarotbereich. Falls das lichtempfindliche Empfangselement nicht abgedeckt ist, gibt diese ein Ausgangssignal ab. Im anderen Fall gibt diese kein oder ein anderes Ausgangssignal ab, das entsprechend in der Steuer- und Auswertevorrichtung verarbeitet wird. Falls an der Diode ein Kurzschluß eintritt oder eine Unterbrechung, ändert sich das Potential am Eingang der Sendediode und liegt außerhalb eines Spannungsbandes, das normalerweise eingehalten wird, wenn die Sendediode fehlerfrei arbeitet.For energy saving reasons and to extend the service life, it is customary, the Transmitting diodes of a light barrier with coin validators not continuously with To apply voltage, but only from time to time for a short time. For this is uses an activation line, possibly via a switching transistor, the transmitter diode connected to a voltage source. Only in this case, the transmitter diode begins To give off light, for example in the infrared range. If the photosensitive Receiving element is not covered, this outputs an output signal. in the In other case, this outputs no or another output signal, the corresponding in the control and evaluation device is processed. If at the diode a short circuit or an interruption, the potential changes at the input of the Transmitting diode and lies outside of a voltage band, which is normally complied with when the transmitter diode is operating correctly.
Wird, wie üblich, in einem Münzgerät eine Vielzahl von Lichtschranken eingesetzt, ist es denkbar, eine einzige Überwachungsschaltung vorzusehen und durch diese nach Maßgabe der Aktivierung der Sendedioden die jeweilige Lichtschranke zu überwachen.If, as usual, a multiplicity of light barriers are used in a coin device, it is conceivable to provide a single monitoring circuit and by this in accordance with the activation of the transmitter diodes to the respective photocell monitor.
Die Erfindung ist in einer Ausgestaltung der Erfindung vorzugsweise anwendbar auf die Füllstandsmessung in Münztuben. Mit Hilfe der Erfindung lassen sich daher Fehler bei der Korrektur eines Tubenzählers wirksam vermeiden.The invention is preferably applicable in one embodiment of the invention the level measurement in coin tubes. Therefore, with the aid of the invention Effectively avoid errors when correcting a tube counter.
Eine andere Anwendung sieht erfindungsgemäß vor, daß die Lichtschranke zur Durchmesserbestimmung in einem Münzprüfer verwendet wird.Another application provides according to the invention that the light barrier for Diameter determination is used in a coin validator.
Schließlich ist auch denkbar, die erfindungsgemäße Überwachungsschaltung bei einer Lichtschranke zur Feststellung der Endstellung eines Motors anzuwenden, der die Ausgabe von Münzen aus den Münztuben bewerkstelligt. Finally, it is also conceivable, the monitoring circuit according to the invention a photoelectric sensor to determine the end position of an engine to apply, the the issue of coins from the coin tubes accomplished.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert.An embodiment of the invention is described below with reference to a drawing explained in more detail.
Die einzige Figur zeigt ein Schaltungsbeispiel nach der Erfindung.The single figure shows a circuit example according to the invention.
In der Figur ist eine Lichtschranke dargestellt, bestehend aus einer lichtemittierenden Diode D1, die z. B. Infrarotlicht abgibt, und einem lichtempfindlichen Transistor Tl. Eine derartige Lichtschranke ist z. B. vorgesehen an einer Münztube eines Geldwechslers zur Feststellung des Pegels der Münzen in der Münztube. Üblicherweise weist jede Münztube zwei oder drei derartige Lichtschranken auf. Es ist aber auch denkbar, eine derartige Lichtschranke zur Anwesenheitsbestimmung aller Münzen in einem Münzgerät vorzusehen oder zur Bestimmung der Endstellung eines Motors für eine Auszahlvorrichtung aus einer Münztube oder dergleichen.In the figure, a light barrier is shown, consisting of a light-emitting Diode D1, the z. B. emits infrared light, and a photosensitive transistor Tl. Such a light barrier is z. B. provided on a coin tube of a Money changer for determining the level of coins in the coin tube. Usually Each coin tube has two or three such light barriers. But it is also conceivable, such a light barrier for determining the presence of all To provide coins in a coin device or to determine the end position a motor for a payout device from a coin tube or the like.
Derartige Lichtschranken werden nicht permanent eingeschaltet, sondern periodisch. Die Einschaltung erfolgt über einen Schalttransistor T2, der über einen Widerstand sowie mit einer Aktivierungsleitung A1 verbunden ist. Die Aktivierungsleitung ist an eine geeignete Spannungsquelle angeschlossen. Diese legt an die Diode D1 eine Spannung U1 an, wobei ein Teil der Spannung am Widerstand W2 abfällt. Der lichtempfindliche Transistor T1 ist mit einer Ausgangsleitung Q1 verbunden, die zu einer nicht gezeigten Steuer- und Auswertevorrichtung führt. Die Steuer- und Auswertevorrichtung fragt im Takt mit der Aktivierung der Sendediode D1 die Leitung Q1 ab, um festzustellen, ob die Strecke zwischen Sendediode D1 und Transistor T1 frei oder durch einen Gegenstand unterbrochen ist.Such photocells are not permanently switched on, but periodically. The connection is made via a switching transistor T2, which has a resistor and connected to an activation line A1. The activation line is connected to a suitable voltage source. This applies to the diode D1 a Voltage U1, wherein a portion of the voltage across the resistor W2 drops. The photosensitive Transistor T1 is connected to an output line Q1 connected to a control and evaluation device, not shown, leads. The control and evaluation device asks in time with the activation of the transmitting diode D1, the line Q1 to determine if the distance between transmitter diode D1 and transistor T1 free or interrupted by an object.
Mit einem Punkt zwischen dem Widerstand W2 und der Anode der Diode D1 ist eine Auswerteschaltung AW verbunden. Diese ermittelt das Potential an dem besagten Punkt, das bei intakter Diode D1 sich innerhalb einer bestimmten Bandbreite bewegt. Wird hingegen bei der Aktivierung der Diode D1 ein oberhalb oder unterhalb dieser Bandbreite liegendes Potential gemessen, wird über eine Leitung Q2, die mit der Steuer- und Auswertevorrichtung verbunden ist, ein entsprechendes Signal abgegeben. Dieses Signal sorgt dafür, daß das Ausgangssignal des Transistors T1 nicht gewertet wird, weil es möglicherweise ein Falschsignal ist. Befindet sich z. B. kein Hindernis in der Lichtschranke, wird aber vom Transistor T1 ein Signal abgegeben, das dem Vorhandensein eines Hindernisses entspricht, würde ein Falschsignal abgegeben. Z. B. würde für eine Münztube ein Füllstand angezeigt, der in Wahrheit nicht existiert.With a point between the resistor W2 and the anode of the diode D1 an evaluation AW connected. This determines the potential at the said point, that with intact diode D1 within a certain bandwidth emotional. If, however, when activating the diode D1 is above or Measured below this bandwidth lying potential is via a line Q2, which is connected to the control and evaluation device, a corresponding Signal delivered. This signal ensures that the output signal of the transistor T1 is not scored because it may be a false signal. is z. B. no obstacle in the light barrier, but is a transistor T1 Signal emitted, which corresponds to the presence of an obstacle, would enter Wrong signal issued. For example, a level would be displayed for a coin tube, the in truth does not exist.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20315009U DE20315009U1 (en) | 2003-09-27 | 2003-09-27 | Photoelectric sensor in a coin operated device |
| DE20315009U | 2003-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1519328A1 true EP1519328A1 (en) | 2005-03-30 |
| EP1519328B1 EP1519328B1 (en) | 2009-04-08 |
Family
ID=31725052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20040021756 Active EP1519328B1 (en) | 2003-09-27 | 2004-09-14 | Coin accepting device with a light barrier |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1519328B1 (en) |
| DE (2) | DE20315009U1 (en) |
| ES (1) | ES2325322T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008011848U1 (en) | 2008-09-04 | 2010-02-11 | Sick Ag | Optoelectronic sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3544048A1 (en) * | 1985-12-13 | 1987-06-19 | Standard Elektrik Lorenz Ag | Fault location in series-connected light barriers |
| DE4102106A1 (en) * | 1991-01-25 | 1992-08-06 | Honeywell Regelsysteme Gmbh | Liquid level sensor - has functional monitoring circuit with logic combining photodiode drive pulses with light sensor output signals |
| US5458536A (en) * | 1991-07-08 | 1995-10-17 | Mars Incorporated | Coin mechanisms |
| US6147617A (en) * | 1998-07-21 | 2000-11-14 | Bong Oh Electronics Ind. Co., Ltd. | Apparatus and method for detecting faults in outdoor display |
| EP1127690A1 (en) * | 2000-02-24 | 2001-08-29 | MAN Roland Druckmaschinen AG | Safety device for a printing machine |
| DE10140331A1 (en) * | 2001-08-16 | 2003-04-03 | Siemens Ag | Traffic control light signals and method for monitoring the function of such a sign |
-
2003
- 2003-09-27 DE DE20315009U patent/DE20315009U1/en not_active Expired - Lifetime
-
2004
- 2004-09-14 EP EP20040021756 patent/EP1519328B1/en active Active
- 2004-09-14 ES ES04021756T patent/ES2325322T3/en active Active
- 2004-09-14 DE DE200450009300 patent/DE502004009300D1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3544048A1 (en) * | 1985-12-13 | 1987-06-19 | Standard Elektrik Lorenz Ag | Fault location in series-connected light barriers |
| DE4102106A1 (en) * | 1991-01-25 | 1992-08-06 | Honeywell Regelsysteme Gmbh | Liquid level sensor - has functional monitoring circuit with logic combining photodiode drive pulses with light sensor output signals |
| US5458536A (en) * | 1991-07-08 | 1995-10-17 | Mars Incorporated | Coin mechanisms |
| US6147617A (en) * | 1998-07-21 | 2000-11-14 | Bong Oh Electronics Ind. Co., Ltd. | Apparatus and method for detecting faults in outdoor display |
| EP1127690A1 (en) * | 2000-02-24 | 2001-08-29 | MAN Roland Druckmaschinen AG | Safety device for a printing machine |
| DE10140331A1 (en) * | 2001-08-16 | 2003-04-03 | Siemens Ag | Traffic control light signals and method for monitoring the function of such a sign |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2325322T3 (en) | 2009-09-01 |
| DE20315009U1 (en) | 2004-02-12 |
| DE502004009300D1 (en) | 2009-05-20 |
| EP1519328B1 (en) | 2009-04-08 |
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