EP2765559A1 - Coin sorting apparatus - Google Patents

Abstract

The device has two receiving containers to receive the coins (31). A transporting unit (18) transports the coins to the two receiving containers. A sensor (62) that detects the coins is arranged in a transporting section (52) and another sensor (64) that detects the coins is arranged in another transporting section (54). A control unit grasps the number of coins fed to the receiving container depending on the information obtained by the two sensors. The transporting unit comprises two transporting sections.

Description

The invention relates to a device for sorting coins, which comprises a first and at least one second receptacle for receiving coins. Furthermore, the device has a separating unit for separating coins and a transport unit for transporting coins from the separating unit to the first receiving container arranged downstream of the separating unit and the second receiving container located downstream of the first receiving container, wherein the transport unit has a first transport section and a second transport section. The first transport section is arranged between the singling unit and the first receptacle so that both the first receptacle and the second receptacle to be supplied coins are transported along the first transport section. The second transport section is arranged between the first and the second transport container, so that along it only the coins not supplied to the first receptacle are transported.

In the case of coin input and / or output devices, the coins entered as unsorted coins, after being singulated, their authenticity checked and their denomination determined, are distributed, depending on their denomination, to a plurality of receptacles, so-called coin hoppers. In particular, there is a sorted storage of coins, that is, that for each denomination at least one receptacle is provided.

For this purpose, in particular a sorting path is provided, which comprises a bearing surface on which the coins rest during transport and in which a plurality of holes are arranged in the transport direction of the coins of increasing size. Below each of these holes one of the coin receiving containers is arranged, so that the coins are distributed depending on their size on the individual receptacles. Due to the high processing speed and the different nature of the coins, however, it may happen that a coin is mistakenly fed to a wrong receptacle. This is particularly critical if the coins are also paid out again, because if a false coin is included in a Münzhopper, thus the wrong amount of money would be paid.

There are therefore known apparatus in which to determine the correct supply of the individual coins to the individual receptacles in the entrance area of the receptacle or in the area between the hole and the receptacle, so in any case in the area in which the coins in the open Case, photocells are arranged to detect the coins. Such device are for example from the documents DE 20 2006 007 932 U1 and DE 29807688 U1 known. The problem with this is that in the case of coins in free fall it can easily happen that due to the rotation of the coins and the dense sequence of successively supplied coins, the light beam of the light barrier is interrupted continuously in two consecutively supplied coins, so that the two Coins from the photocell can only be perceived as a coin. Likewise it can It may happen that a coin does not interrupt the light beam in case of unfortunate rotation and position. Both have the consequence that erroneous determinations of the number of coins supplied to the corresponding receptacle comes. Furthermore, it may happen that the light beam of the light barrier is permanently broken when the receptacle has such a high level that the recorded coins are stacked into the area of the light barrier.

It is an object of the invention to provide a device for sorting coins, in which a simple way monitoring the scheduled delivery of the coins to the individual receptacles is reliably possible.

This object is achieved by a device having the features of claim 1. Advantageous developments of the invention are specified in the dependent claims.

According to the invention, a first sensor for detection along the first transport section of transported coins is arranged in the first transport section. Likewise, a second sensor for detecting coins transported along the second transport section is arranged in the second transport section. A control unit determines the number of coins supplied to the first receptacle as a function of the information obtained from the first sensor and from the second sensor. During the transport along the first transport section and the second transport section, the coins have a predetermined orientation and also do not rotate. The coins are in particular on a support surface on, along which they move. The provision of the sensors in these transport sections of the transport unit ensures that the individual coins can be reliably detected so that the number of coins transported along the first transport section and the number of coins transported along the second transport section can be reliably determined. Accordingly, by calculating the coins supplied in the first receptacle based on these two values, it can be done with high accuracy.

Furthermore, it is ensured by the arrangement of the sensors in the transport sections and thus outside of the receptacle that it can not happen that at a high level of the receptacle (so-called turrets) permanently at least one coin in the detection range of the sensor is arranged and thus a Detection of further supplied coins prevented.

The terms upstream and downstream refer to the direction of transport of the coins along the transport path within which they are transported in the apparatus.

The control unit preferably determines, by means of the first sensor, the number of coins transported along the first transport section and, with the aid of the second sensor, the number of coins transported along the second transport section. Further, the control unit determines the number of coins supplied to the first receptacle, in particular, by subtracting the number the coins transported along the second transport section are counted by the number of coins transported along the first transport section. Since the difference between the coins transported along the first and the coins transported along the second transport section can only have been supplied to the first receiving container, the corresponding number can be determined reliably therefrom.

In a particularly preferred embodiment of the invention, at least a third receptacle for receiving coins is provided. It is particularly advantageous if a plurality of further receptacle for receiving coins is provided. In particular, the number of receptacles provided corresponds to the number of different denominations of the currency rate to be handled. In the case of euro coins, in particular, eight receptacles are thus provided, the receptacles being arranged one behind the other in relation to the transport direction. In the transport section of the transport unit located between two receptacles arranged one behind the other, a sensor for detecting coins is provided in each case. The control unit then determines the number of coins fed to one of the receptacles by subtracting the number of coins, determined in the transport section located behind the receptacle, from the number of coins detected in the transport section located in front of the receptacle. Thus, the number of coins supplied for each receptacle can be easily determined.

For the last receptacle seen in the direction of transport, it is not necessary to provide another sensor after it so that the control unit accepts, as the number of coins fed to it, the number determined by the sensor located immediately before the last receptacle. Both the first sensor and the second sensor preferably each comprise a light barrier, wherein by interrupting the light barrier in each case the transport of a coin along this transport section is detected. In a preferred embodiment of the invention, the other sensors for detecting coins also each comprise a light barrier. The use of light barriers has the advantage that with their help, the coins can be detected easily and reliably and the photocells are inexpensive to purchase. Alternatively, it is also possible to use ultrasonic sensors, capacitive sensors and / or inductive sensors instead of light barriers. Likewise, it is also possible that different types of sensors are used in the different transport sections.

Furthermore, a test unit for determining the denomination of supplied coins can be provided, wherein the control unit determines from the determined denominations for each receptacle a desired value of the coins to be supplied to it according to plan. In particular, it is preset for each coin receiving container how many coins of which denomination are to be fed to it. Based on this predetermined scheme, the control unit determines how many coins the respective receptacle by comparing the corresponding number of coins of each denomination would have to be supplied, if the feeding takes place according to the preset distribution.

In particular, the examination unit serves not only to determine the denomination but also to verify the authenticity of the coins. As falsely classified coins and / or other objects are sorted out in particular before the other coins are supplied by the transport unit to the receptacles.

The test unit is arranged in particular upstream of the transport unit and downstream of the singulation unit.

It is particularly advantageous if the control unit compares for at least one of the receptacles the number of coins supplied, that is to say the actual number, determined with the aid of the sensors, with the corresponding desired value. It is particularly advantageous if the control unit for each receptacle performs a comparison of the actually supplied number with the desired value. About this comparison, the control unit can easily determine whether the distribution of the coins was carried out on the individual coin receiving container according to the predetermined scheme or whether a coin was fed to a wrong receptacle.

The control unit may make a comparison between the target value and the actually supplied number of coins after the supply of each single coin, respectively after the supply of a predetermined number of coins and / or after the supply of all as a coin in the device execute entered coins. The comparison after the delivery of each coin has the advantage that it can be detected immediately if there is an error. The comparison after the supply of a predetermined number of coins and / or all coins of a coin quantity, on the other hand, offers the advantage that fewer comparisons are necessary. In any case, since the payout of coins does not take place until all the coins of a given amount of coins have been distributed to the receptacles, there is also no risk during the division of the coins that an erroneous amount is due to the misfeeding of a coin to a wrong receptacle could be disbursed.

In a particularly preferred embodiment of the invention, the control unit determines not only that at least one coin was supplied to a wrong receptacle, but concretely determines which receptacle the wrong coin was supplied. This can happen because the control unit compares to which receptacles too few and which receptacles in particular too many coins were supplied. If more coins have been supplied to a receptacle than coins of the corresponding denomination have been entered, at least one false coin must be received in such a receptacle.

It is particularly advantageous if, when dispensing coins via an output unit, the control unit does not use those receptacles in which at least one coin intended for this receptacle has been received. The control unit replaces this particular the denomination to be inadvertently taken from this receptacle by a corresponding number of coins of other denominations from other receptacles.

In an alternative embodiment of the invention, the control unit can not only those receptacles in which an unallocated coin was added, but use all receptacles in which the actual value deviates from the desired value, not for later disbursement.

The transport unit is in particular designed such that it has a bearing surface on which the coins rest during transport along the transport unit. In particular, a plurality of holes are provided in the support surface, wherein in each case one of the receptacles is arranged below each hole. The holes differ in size, with the size of the holes increasing in the transport direction from hole to hole, so that the coins are distributed according to their size and thus according to their denomination, without the need for active elements to be controlled, to the individual receptacles , Thus, a simple, inexpensive solution for effective sorting is achieved.

The sensors are preferably arranged shortly before the holes, so that they can be used to determine the number of coins supplied to the holes. The distance is in this case chosen such that the coins, when they are transported past, still rest on the support surface and are not yet in the case in the hole.

In an alternative embodiment of the invention, instead of a bearing surface with holes, actively controlled elements for sorting the coins onto the respective receptacles may also be used.

Further, it is advantageous if the device has an output unit for outputting information, wherein the control unit, when it has determined the erroneous feeding of at least one coin to a receptacle, controls the output unit such that it outputs information about this to an operator. The output can be made in particular via a display, a warning tone, and / or a screen. Thus, an operator can easily correct the erroneous sorting. Since the operator knows in particular concretely about the information in which of the receiving containers a coin was incorrectly supplied, the operator only has to manually correct this receiving container accordingly.

Further features and advantages of the invention will become apparent from the following description, which illustrates the invention with reference to embodiments in conjunction with the accompanying figures.

Figur 1

eine schematische Darstellung einer Vorrichtung zum Sortieren von Münzen;

Figur 2

eine stark vereinfachte Seitenansicht eines Ausschnitts der Vorrichtung zur Handhabung von Münzen;

Figur 3

eine stark vereinfachte Darstellung einer Draufsicht aus dem Ausschnitt aus Figur 2;

Figur 4

eine Tabelle von einer Folge zugeführter Münzen und möglichen Verteilungen auf die einzelnen Aufnahmebehälter; und

Figur 5

eine Tabelle der sich in den einzelnen Fällen nach Figur 4 sich ergebenden Sensorwerte.

Show it:

FIG. 1

a schematic representation of a device for sorting coins;

FIG. 2

a highly simplified side view of a section of the device for handling coins;

FIG. 3

a highly simplified representation of a plan view of the neck FIG. 2 ;

FIG. 4

a table of a sequence of supplied coins and possible distributions to the individual receptacles; and

FIG. 5

a table that varies in each case FIG. 4 resulting sensor values.

In FIG. 1 a schematic representation of a device 10 for sorting coins is shown. The device 10 is in particular a device for input and / or output of coins. The coins to be entered are entered via an input tray 12 and fed to a separating unit 14 for separating the entered coins. The separating unit 14 is designed in particular in the form of a coin centrifuge, in which the coins are transported individually by centrifugal forces acting on them through a hole in the wall of the coin centrifuge. The individual coins are checked for authenticity by means of a testing unit 16. As falsely classified coins and / or foreign objects are sorted out. For denominated coins, the denomination is determined. Subsequently, the coins are distributed by means of a transport unit 18 on coin receiving containers, one of which is designated by the reference numeral 20 by way of example is. In the example shown, five receptacles 20 are provided. For the sake of simplicity, it is in FIG. 1 as well as in the following FIGS. 2 and 3 the transport unit 18 is shown linearly. The transport unit 18 can also have any other shape. In particular, the transport unit 18, and thus also the receptacle 20, can be arranged in a circle around the coin centrifuge 14, so that a particularly compact design is achieved. The coins accommodated in the receptacles 20 can be removed again and output via an output unit 22.

In FIG. 2 is a highly simplified representation of a section of the device 10 according to FIG. 1 shown, with only the test unit 16 and the transport unit 18 are shown. In FIG. 3 is shown a plan view of this section.

The transport unit 18 comprises a support surface 30 on which the coins 31 are transported with their front or rear side resting in a transport direction P1. In this case, the coins 31 lie with their edges on a guide element 42, so that they have a predetermined orientation on the support surface 30.

In the support surface 30 five holes 32 to 40 are provided, each hole exactly one receptacle 20 is arranged. Thus, under the first hole 32, a first receptacle 20, below the second hole 32, a second receptacle 20, below the third hole 36, a third receptacle 20, below the fourth hole 38, a fourth receptacle 20 and below the fifth hole 40 a fifth receptacle 20 arranged. Here, the receptacle 20 may be arranged such that coins falling through the corresponding hole 32 to 40 fall directly into this receptacle 20. Alternatively, further transport and / or deflection elements can be provided, via which the coins 31 are transported or deflected, before they are then fed to the actual receptacle 20.

The dimensions of the holes 32 to 40 increases as seen in the transport direction P1, so that, as in FIG. 3 can be clearly seen by the two exemplified coins 31, first the smallest coins 31 are sorted out through the first hole 32, then the next larger coins 31 through the second hole 34, etc. Thus, the coins 31 due to their size and thus due to their denomination be distributed to the individual receptacle 20.

Through the holes 32 to 40, the transport path, along which the coins are transported by means of the transport unit 18, into a first transport section 52, a second transport section 54, a third transport section 56, a fourth transport section 58 and a fifth transport section 60 is divided, wherein the first transport section 52 between the inspection unit 16 and the first hole 32, the second transport section 54 between the first hole 32 and the second hole 34, the third transport section 56 between the second hole 34 and the third hole 36, the fourth transport section 58 between the third Hole 36 and the fourth hole 38 and the fifth transport section 60 between the fourth hole 38 and the fifth hole 40 are arranged. Within each of these transport sections 52 to 60, a sensor configured as a light barrier 62 to 70 is arranged, with the aid of which the coins 31 transported along the respective transport section 52 to 60 can be detected.

By means of the information obtained via the light barriers 62 to 70, that is, the number of coins 31 transported along the respective transport sections 52 to 60, a control unit 24 of the device 10 can easily insert the coins 31 dropped into the respective holes 32 to 40 and thus the coin determine respective receptacle 20 supplied coins 31.

In order to determine the coins 31 fed to the first receptacle 20, ie those coins 31 which have fallen out of the transport path through the first hole 32, the control unit 21 subtracts the number of coins 31 determined by the second photoelectric barrier 64 by the number of the first photoelectric barrier 62 found in the first transport section 52 coins 31st

The determination of the individual holes 32 to 40 and thus the receptacles 20 supplied coins 31 by means of along the transport path of the transport unit 18 in front of the holes 32 to 40 arranged light barriers 62 to 70 has compared to below the holes 32 to 40 arranged light barriers have the advantage that the coins 31 rest on the support surface 30 during their detection via the light barrier 62 to 70 in a predetermined orientation and abut against the guide element 32.

This has the advantage that each coin can be reliably detected individually. Since all coins 31 abut with their edge on the guide member 32, between two consecutively transported coins 31 always at least in the immediately adjacent to the guide member 32 area a gap, since the coins 31 are all circular. Since the light barriers 62 to 70 are aligned in such a way that their light beam is arranged in this area, it is ensured that it can not happen that the light beam is continuously interrupted by two coins 31 transported in succession and thus two coins 31 only as one coin 31 would be valued.

Thus, the individual holes 32 to 40 and thus the individual receptacles 20 supplied coins 31 can be determined reliably and safely in a simple manner.

In FIG. 4 a table of a sequence of supplied coins is shown, wherein in the first line 71, the successive each of the transport unit 18 supplied coins 31 are listed with their respective denomination. Here, in the assumed example, coins of five different denominations, namely the denominations A, B, C, D and E are fed, the denomination coins A being projected on the first receptacle 20 via the first hole 32, the denomination B coin on the second Hole 34 the second receptacle 20, the coin denomination C on the third hole 36 to the third receptacle 20, the coin denomination D on the fourth hole 38 the fourth receptacle 20 and the Coin denomination E via the fifth hole 40 to the fifth receptacle 20 to be supplied.

In the second line 72, the nominal distribution of the coins on the individual holes 32 to 40 and thus on the corresponding receptacle 20 is shown, wherein the numbers indicated in the line 72 correspond to the reference numerals of the corresponding holes 31 to 40. Thus, in the target distribution, all coins of denomination A will pass through first hole 32, all coins of denomination B will pass through second hole 34, all denomination C coins will pass through third hole 36, all denomination D coins will pass through fourth hole 38 and all Denomination E coins are transported through the fifth hole 40. Thus, at the target distribution corresponding to the line 72, fifteen coins are transported along the first transport section 52, so that fifteen coins are detected by the first sensor 62. Of these fifteen coins, all coins of the denomination A, ie four coins, are transported through the first hole 32, so that along the second transport section 54 only eleven coins are transported and correspondingly detected by the second sensor 64. Through the second hole 34, all coins of the denomination B fall, so three coins, so that along the third transport section 56 only eight coins are transported. Accordingly, the third sensor 66 detects only eight coins.

Since all coins of the denomination C, ie four coins, fall through the third hole 36, only four remain along the fourth transport section 58 Coins transported, which are detected by the fourth sensor 68 accordingly.

The two coins of the denomination D fall into the fourth hole 38, so that along the fifth transport section 60 only the two remaining coins of denomination E are transported and are detected by the fifth sensor 70, that is to say by the light barrier 70.

In FIG. 5 These corresponding values of the individual sensors 62 to 70 are entered in column 82. In column 84, the difference between the respective values of the respective sensors 62 to 70 are respectively indicated, ie those values which are also determined by the control unit 24 by the corresponding subtraction of the values of two adjacent sensors 62 to 70 and which determine the number of sensors Hole 32 to 40, which is arranged between the two sensors 62 to 70, corresponds to supplied coins.

In the third line 74 of the table FIG. 4 a first error scenario is shown, in which the fifth coin is now supplied to the third hole 36 instead of the second hole 34. In column 86 in the table FIG. 5 the sensor values are shown which result in this corresponding first fault scenario. The column 88 indicates the difference values between the values respectively determined by the sensors 62 to 70. In this first fault scenario, the control unit 24 can easily determine that erroneously by comparing the actual values now obtained with the actual target values, as indicated in column 84 a coin which should have been supplied to the second receptacle 20 through the second hole 34 was erroneously supplied to the third receptacle 20 through the third hole 36.

In a preferred embodiment, the control unit 24 in such a case disables the third receptacle 20 for coin disbursement 31 so that a false denomination can not be inadvertently paid out. In addition, in particular, an error message can be output so that an operator knows in which receptacle 20 it has come to an error and the operator can correct this error accordingly.

In the fourth line of the table off FIG. 4 a second fault scenario is shown in which the fifth coin 34 falls into the fourth hole 38 instead of the second hole 34. As the resulting actual values of the sensors 62 to 70 in column 90 of the table FIG. 5 and show the differences therefrom in column 92, the control unit 24 determines in this case that only two instead of three coins and instead of the fourth receptacle 20 have been fed to the second receptacle 20 three instead of only two coins.

In line 78 off FIG. 4 There is shown another error scenario in which the sixth coin 31 passes through the second hole 34 and the eleventh coin instead of the second hole 34 through the third hole 36 instead of the first hole 32. In columns 94 and 96 the resulting sensor measured values and the resulting differential values are given.

In line 80 in FIG. 4 Another troubleshooting scenario is illustrated in which the tenth coin passes through the second hole 34 and the twelfth coin instead of through the first hole 32 through the fourth hole 38 instead of through the third hole 36. As the resulting actual values in columns 98 and 100 of the table after FIG. 5 show, arise in this constellation for the first, the second, the third and the fourth receptacle 20 each a deviation of the actual stock of the target stock, in particular the inclusion of too many coins in the second receptacle and the fourth receptacle is critical.

In an alternative embodiment of the invention, other sensors, in particular other optical sensors, ultrasonic sensors, capacitive sensors and / or inductive sensors may be used instead of light barriers 62 to 70. Furthermore, it is alternatively possible that fewer than five receptacles 20 and correspondingly fewer than five holes 32 to 40 or more than five receptacles 20 and correspondingly more than five holes 32 to 40, in particular eight receptacles 20 are used.

LIST OF REFERENCE NUMBERS

10 contraption 12 input tray 14 separation unit 16 test unit 18 transport unit 20 receptacle 22 output unit 24 control unit 30 bearing surface 32 to 40 hole 31 coin 42 guide element 52 to 60 transport section 62 to 70 sensor 71 to 80 row 82 to 100 column P1 transport direction

Claims (15)

Device for sorting coins,
with a first and at least one second receptacle (20) for receiving coins (31),
a separating unit (14) for separating coins (31), and
with a transport unit (18) for transporting coins (31) from the singulator unit (14) to the first receptacle (20) located downstream of the singulator unit (14) and the second receptacle (20) located downstream of the first receptacle (20) the transport unit (18) has a first transport section (52) which is arranged between the singling unit (14) and the first transport container (20) and along which both the first receptacle (20) and the second receptacle (20) zuzuführenden coins and a second transport section (54), which is arranged between the first transport container (20) and the second transport container (20) and along which only the coins not fed to the first receptacle (20) are transported,
characterized in that a first sensor (62) for detecting coins (31) transported along the first transport section (529) is arranged in the first transport section (52),
a second sensor (64) for detecting coins (31) transported along the second transport section (54) is arranged in the second transport section (54), and
in that a control unit (24) is provided which determines the number of coins (31) supplied to the first receptacle (20) as a function of the information obtained by the first sensor (62) and the second sensor (64). Device (10) according to claim 1, characterized in that the control unit (24) determines with the aid of the first sensor (62) the number of coins (31) transported along the first transport section (52) that the control unit (24) uses the second sensor (64) determines the number of coins (31) transported along the second transport section (54), and in that the control unit (24) estimates the number of coins fed to the first receptacle (20) by subtracting the number of along the second transport section (54) transported coins determined by the number of coins (31) transported along the first transport section (52). Device (10) according to claim 1 or 2, characterized in that at least one third receptacle (20) for receiving coins (31), preferably a plurality of further receptacles (20) for receiving coins (31) are provided, and that in which in each case a sensor (62 to 70) for detecting coins (31) is provided in the transport section (52 to 60) of the transport unit (18) located between two receptacles arranged one behind the other. Device (10) according to claim 3, characterized in that the control unit (24) the number of one of the receptacles (20) supplied coins (31) by subtracting the number of the immediately after the respective receptacle (20) arranged sensor (62 to 70) determined coins (31) of the number of the immediately before the respective receptacle (20) arranged sensor (62 to 70) determined coins (31). Device (10) according to one of the preceding claims, characterized in that the control unit (24) as the number of the last in the transport direction (P1) of the coins (31) seen last receiving container (20) supplied coins (31) the number of the immediate before the last receptacle (20) arranged sensor (70) determined coins (31) determines. Device (10) according to one of the preceding claims, characterized in that the first sensor (62), the second sensor (64) and / or the further sensors (66 to 70) for detecting coins (31) each have at least one light barrier, an ultrasonic sensor, a capacitive sensor and / or an inductive sensor. Device (10) according to one of the preceding claims, characterized in that a test unit (16) for determining the denomination of supplied coins (31) is provided, and that the control unit (24) based on the determined denominations for each receptacle (20) a Set value of scheduled coins to be supplied (31) determines. Device (10) according to claim 7, characterized in that the control unit (24) for at least one receptacle (20), preferably for each receptacle (20), the determined using the sensors (62 to 70) determined number of coins (31 ) compares with the corresponding target value. Device (10) according to Claim 8, characterized in that the control unit (24) determines the number of coins (31) supplied with the aid of the sensors (62 to 70) with the corresponding desired value in each case after the delivery of each coin (31 ) after delivery of a predetermined number of coins (31) and / or after delivery of all coins (31) supplied as a coin amount to the device (10). Device (10) according to claim 8 or 9, characterized in that the control unit (24) determines, depending on the result of the comparison or the results of the comparisons, in which receptacle (20) at least one unallocated coin (31) has been received. Device (10) according to claim 9 or 10, characterized in that the control unit (24) when dispensing coins (31) via an output unit (22) receiving container (20) in which at least one unassigned coin (31) has been recorded, not used. Device (10) according to claim 9 or 10, characterized in that the control unit (24) when dispensing coins (31) via an output unit (22) receiving container (20), in which by means of the sensors (62 to 70) determined Number of coins delivered (31) deviates from the corresponding target value, not used. Device (10) according to one of the preceding claims, characterized in that the transport unit (18) has a support surface (30) on which the coins (31) rest during transport, and in that in the support surface (30) holes (32 to 40) are provided, wherein below each hole (32 to 40) each arranged a receptacle (20). Apparatus (10) according to claim 13, characterized in that the holes (32 to 40) in the transport direction (P1) seen from hole to hole are larger. Device (10) according to any one of the preceding claims, characterized in that an output unit is provided for the output of information, and in that the control unit (24), when it has detected the erroneous feeding of at least one coin (31) to a receptacle (20) , the output unit controls such that it outputs information about this to an operator.

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