EP2975205A1 - Ink kit for irreversible cancellation of vouchers with inductive sensors for detecting manipulation - Google Patents

Abstract

The invention relates to an ink kit (30) for the irreversible debiting of banknotes, comprising a dye container (32) for receiving a dye, a spray system (34) and at least one connecting line (39, 40). Furthermore, a manipulation sensor (50) for detecting manipulations of the ink kit (30) is provided which comprises at least one inductive sensor.

Description

The invention relates to an ink kit for the irreversible devaluation of banknotes, comprising a dye container for receiving a dye, a spray system for spraying the dye on the notes to be devalued and a connecting line for supplying dye from the dye container to the spray system. Further, the ink kit has a manipulation sensor for detecting tampering attempts on the ink kit.

Inkkits are used in particular in cash cassettes in order to secure the notes of value received therein. If a manipulation attempt, for example unauthorized opening of the cashbox or damage to the housing of the cashbox, is detected with the aid of the sensors of the cashbox, the cashbox triggers the inkkit so that the banknotes held in the cashbox are dyed irreversibly with a dye. As a result, the notes of value are useless for a thief, as they can no longer bring the notes into circulation.

In order to prevent manipulation attempts on the Tintenkit itself, for example, a tapping of the dye container for discharging the dye, it is known to provide sensors with which manipulation attempts can be detected on the Tintenkit. For example, the Dye container surrounded by a conductive foil. If this film is damaged, then this can be detected electronically and detected according to the manipulation attempt.

An ink kit with a drill protection, for example, from the document DE 10 2010 016 970 A1 known.

A disadvantage of this known manipulation protection is that such films can be attached to the dye container only consuming and protect it only incomplete. In particular, other parts of the ink cartridge, such as the connection line to the spray system and the spray system itself, are not protected by such known manipulation sensors.

From the documents 10 2010 060 379 A1 and DE 10 2010 036 708 A1 Cash cassettes with ink kits are known in which the housing of the cashbox is designed such that damage to the housing can be detected by sensors. In particular, electrically conductive substances or easily detectable substances absorbed in the wall are used as sensors. Likewise, the use of a wire mesh for protecting the housing of the cashbox is known.

It is an object of the invention to provide an ink kit for the irreversible devaluation of banknotes, which offers the greatest possible security against manipulation.

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

According to the invention, the manipulation sensor comprises at least one inductive sensor with the aid of which manipulations on the ink kit, in particular the dye container and the connecting line, can be detected. An inductive sensor makes it possible to detect changes to metallic components in a simple way very accurately. In addition, an inductive sensor itself allows the detection of an approach of metallic objects, so that, for example, a tool with which a manipulation of the ink kit is to be performed, even before the damage of the ink kit, can be detected. In particular, the inductive sensor allows any mechanical changes to metallic components of the ink cartridge, e.g. As a bending, breaking and / or drilling, can be easily and reliably detected. In addition, inductive sensors are nowadays very small and can thus be provided space-saving. In addition, mounting an inductive sensor is much easier compared to mounting conductive films. Furthermore, the inductive sensor only has to be mounted in one place and not completely surround all components.

The inductive sensor is in particular designed and arranged such that it forms a resonant circuit together with at least the dye container and / or the connecting line. Any change to the dye container and / or the connecting line causes the alternating magnetic field is changed, which can easily detect the inductive sensor. Thus, any manipulation of the dye container or the connection line can be detected in a particularly simple manner.

In particular, inductive sensors, the dye container and all metallic components connected to the dye container, for example connecting leads, form a common resonant system, any change to these components resulting in detuning of the resonant system which can be detected. Thus, the entire Tintenkit can be monitored with all metallic components in a simple way on the use of inductive sensors.

In particular, the ink kit comprises a trigger unit for conveying dye from the dye container into the spray system. This triggering unit preferably comprises a gas pressure cartridge which can be opened by means of a detonator, so that the pressurized gas contained therein flows at high speed in the dye container and pushes the dye out of the latter via the connecting conduit into the spray system, so that the Dye is sprayed at high speed on the spray system on the value to be canceled notes.

The trip unit is in particular also made of a metallic material, so that manipulations of the triggering system via the inductive sensor can be detected.

The inductive sensor is preferably designed such that with its help at least manipulations of the dye container and the connecting lines can be detected. Alternatively, the inductive sensor is designed such that, with its help, manipulations of the spraying system and the triggering unit can also be detected.

The manipulation transmitter preferably comprises exactly one inductive sensor. Since the inductive sensor together with all metallic components of the ink system forms a single resonant circuit, an inductive sensor is sufficient to detect tampering with all metallic components. So a particularly simple and inexpensive construction is achieved.

The inductive sensor has at least one coil, wherein this coil is wound in particular in a partial area around the dye container. Alternatively or additionally, the coil may also be around a portion of the connecting line or other components of the ink kit. Further, it is possible that a plurality of coils are also provided, which are wound around different components or the same component of the Tintenkits. This ensures that the sensor forms a single resonance system with the corresponding metallic components of the ink kit via the coil, so that a change in the metallic components of the ink kit leads to a detuning of the resonance system, which can be easily detected as manipulation attempts.

Accordingly, the dye container, the connecting line, the spray system and / or the trip unit are at least partially made of metal. Preferably, the dye container, the connection line, the spray system and / or the trip unit are made almost entirely of metal, so that any change to these components can be detected.

The inductive sensor is designed in particular as an inductive miniature sensor, so that a particularly small compact design is achieved. For this purpose, the inductive sensor in particular comprises an integrated circuit, by which the control circuit of the inductive sensor is formed.

The inductive sensor comprises in particular a control unit, a sensor circuit and a coil. About the coil, an alternating magnetic field is generated by the Introduction of conductive materials in the alternating field or the change of materials located in the alternating field is influenced. This influence is detected by the sensor circuit and evaluated by the control unit. Since all of the metallic components of the ink kit that are in the alternating field cause such change in the alternating magnetic field as they change, any manipulation of them can be easily detected.

The control unit is designed in particular as a microcontroller. Alternatively, the inductive sensor may not include its own control unit.

Instead of a microcontroller, microprocessors, CPLDs, DSPs, PSOCs, memory-based state machines and / or preconfigured sensors without microcontrollers can also be used as the control unit.

The sensor circuit is located in particular on the same assembly, preferably the same board as the control unit of the ink kit for controlling the Tintenkits. Alternatively, the sensor circuit can also be designed as a separate module. In this case, the evaluation of the sensor signals can be formed both via the control unit of the ink kit and independently via a separate control unit.

Preferably, only one control unit is provided, which controls the ink kit, the manipulation sensor and / or the cash box into which the ink kit is mounted. Alternatively, a plurality of control units may be provided for the control of these components.

Another aspect of the invention relates to a cashbox comprising a receptacle for holding notes of value and an ink kit of the kind previously described. The ink kit is designed in such a way that with its help, the notes of value recorded in the receiving area can be canceled.

In particular, the cashbox comprises a sensor for detecting manipulations of the cashbox, in particular for detecting damage to a housing of the cashbox. If this sensor of the cash box and / or the manipulation sensor of the ink kit detects a tampering attempt, a control unit triggers the ink kit, so that the banknotes are irreversibly colored. This control unit may be a control unit of the cash box or a control unit of the ink kit.

The cash box may in particular comprise a roll storage on which the notes of value are taken up wound up between two film strips. Alternatively, the cashbox may also include a receptacle in which the recorded Banknotes in the form of a value note stack are arranged standing on their edges.

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, perspektivische Darstellung einer Geldkassette;

Figur 2

eine schematische, perspektivische Darstellung der Geldkassette nach Figur 1 bei ausgeblendetem Gehäuse; und

Figur 3

eine schematische Darstellung einer Entwertungseinheit der Geldkassette nach den Figuren 1 und 2.

Show it:

FIG. 1

a schematic, perspective view of a cashbox;

FIG. 2

a schematic perspective view of the cashbox after FIG. 1 with the housing hidden; and

FIG. 3

a schematic representation of a devaluation unit of the cashbox after the FIGS. 1 and 2 ,

In FIG. 1 is a schematic perspective view of a cashbox 10 is shown. The cash box 10 comprises a housing 12, which has a main body 14 and a lid 16. On one side of the housing 12 is a Slot 18 is provided, through which the cashbox 10 to be supplied notes of value and / or the cashbox 10 to be taken notes of value can be transported through.

In FIG. 2 is a further schematic perspective view of the cashbox 10 is shown, wherein the housing 12 is hidden to better visibility of the internal components. The cash box 10 comprises a receiving unit 20 in which the notes of value to be received in the cash box 10 are received. In the embodiment shown, this receiving unit 20 is designed in the form of a roller store, in which the notes of value to be received are taken up wound up between two film strips on a winding drum. In an alternative embodiment of the invention, the cash box 10 may also include a receiving compartment 20 as a receiving unit, in which the notes of value are placed on their edges standing in the form of a banknote stack.

Furthermore, a device for the irreversible cancellation of recorded in the receiving unit 20 notes of value is provided, which is also referred to as Tintenkit 30. The ink kit 30 comprises a dye container 32 in which a dye is added for irreversibly coloring the notes of value. Furthermore, the ink kit 30 has a spraying system 34, which in the embodiment shown is in the form of two spray plates 36 with a multiplicity of nozzles, one of which is denoted by the reference numeral 38, for example.

The dye container 32 is connected via connecting lines 38, 40 with the spray plates 36, through which the dye received in the dye container 32 can be transported through. The dye is then sprayed through the nozzles 36 at high speed onto the bills received in the receiving area so that they are inked.

For this purpose, a triggering unit 42 is provided within the dye container 32, with the aid of which the dye from the dye container 32 is pushed out through the connecting lines 39, 40 from the nozzles 38 of the spray plates 36 at high speed. This release unit 42 is designed in particular in the form of a gas cartridge in which a gas under high pressure is received. When the ink kit 32 is triggered, a rupture disk of this gas pressure cartridge is destroyed with the aid of a detonator and a bolt, so that the gas taken in at high pressure can escape abruptly and accordingly very quickly pushes the dye out of the ink container 32. In FIG. 3 only the small outer end portion of this trip unit 42 is visible.

In an alternative embodiment of the invention, the trip unit may also be arranged outside of the dye container 32. In this case, the gas flowing out when the gas cartridge is opened is guided via a corresponding line into the dye container 32.

The dye container 32, the connecting lines 38, 40, the spray plates 36 and / or the trip unit 42 are formed in particular of a metallic material in order to ensure high stability and security against manipulation.

In order to further increase safety, in particular to prefer manipulation attempts, a manipulation sensor 50 is provided, which according to the invention is designed as an inductive sensor 50. With the help of this manipulation sensor 50, any manipulation of the ink kit 30, z. As a drilling or bending of the individual components of the ink cartridge 30 can be detected.

The inductive sensor 50 includes a coil 52 wound around the dye container 32. The coil 52 serves to generate a magnetic alternating field.

Furthermore, the inductive sensor 50 comprises a sensor circuit 56 and a microprocessor 54. The sensor circuit 56 is designed in particular as an integrated circuit, so that a very compact design is achieved, for which reason the inductive sensor 50 is also referred to as an inductive microsensor. The microprocessor 54 is arranged in particular on the same board as the sensor circuit 56.

The inductive sensor 50 together with the metallic components of the Tintenkits 30, in particular together with the dye container 32 and the connecting lines 38, 40 a common resonance system. If a manipulation is performed on one of the metallic components of the ink kit 30, this change causes a detuning of the resonance system, which can be easily determined by means of the inductive sensor. In this way, all mechanical changes to the components of the ink cartridge 30 can be easily and reliably detected. In particular, even the approach of a conductive object, such as a metallic drill, causes a change in the alternating magnetic field generated by the coil 52, which can be detected by the sensor circuit 56 and the microprocessor 34.

In this way, protection against manipulation of virtually all components of the ink kit 30 can be achieved in a simple manner. In particular, this allows, compared to other known solutions, that not only the dye container 32 but also the lines 39, 40 are protected. Even with changes to the lines 39, 40, a change of the alternating magnetic field would occur, which would be determined by the inductive sensor 50. Thus, a very high security is achieved in a particularly simple and compact design.

In an alternative embodiment of the invention, the coil 52 may also be arranged on one of the connecting lines 39, 40. Likewise, it is alternatively possible that several Coils 52 are provided, which are arranged on one or different components 32, 36, 39, 40 as Tintenkits 30.

LIST OF REFERENCE NUMBERS

10

cashbox

12

casing

14

body

16

cover

18

slot

20

recording unit

30

Tintenkit

32

dye container

34

spray system

36

spray plate

38

jet

39, 40

connecting line

42

trip unit

50

inductive sensor

52

Kitchen sink

54

microcontroller

56

sensor circuit

Claims (15)

Inkkit for the irreversible cancellation of banknotes,
with a dye container (32) for receiving a dye,
a spray system (34) for spraying dye onto the notes to be canceled;
at least one connecting line (39, 40) for feeding dye from the dye container (32) to the spraying system (34),
and with a manipulation sensor (50) for detecting manipulations of the ink kit (30),
characterized in that the manipulation sensor (50) comprises at least one inductive sensor. Ink kit (30) according to claim 1, characterized in that the ink kit (30) comprises a trigger unit (42). for conveying dye from the dye container (32) into the spray system (34). Ink kit (30) according to claim 1 or 2, characterized in that the manipulation sensor (50) has exactly one inductive sensor. Ink kit (30) according to any one of the preceding claims, characterized in that the inductive sensor (50) is designed such that with its help manipulations of at least the dye container (32) and the connecting line (39, 40) are detectable. Ink kit (30) according to any one of claims 1 to 3, characterized in that the inductive sensor (50) is designed such that with its manipulations at least the dye container (32), the connecting line (39, 40), the spray system (34 ) and the trip unit (42) are detectable. Ink kit (30) according to one of the preceding claims, characterized in that the inductive sensor (50) comprises at least one coil (52). Ink kit (30) according to claim 6, characterized in that the coil (30) is wound around the dye container (32) at least in a partial area. Ink kit (30) according to claim 6, characterized in that the coil (30) is wound at least in a partial area around the connecting line (39, 40). Ink kit (30) according to any one of the preceding claims, characterized in that the dye container (32), the connecting line (39, 40), the spray system (34) and / or the trip unit (42) at least partially, preferably almost completely, of metal are made. Ink kit (30) according to any one of the preceding claims, characterized in that the inductive sensor (50) is designed and arranged such that it forms a resonant circuit together with at least the dye container (32) and / or the connecting line (39, 40). Ink kit (30) according to one of the preceding claims, characterized in that the inductive sensor (50) is an inductive miniature sensor. Ink kit (30) according to any one of the preceding claims, characterized in that the inductive sensor (50) comprises a sensor circuit (56) which is designed in particular as an integrated circuit. Cashbox (10),
with a receiving area (20) for receiving notes of value, and
with an ink kit (30) according to any one of claims 1 to 12 for debiting notes of value received in the receiving area (20). Cashbox (10) according to claim 13, characterized in that the cashbox (10) comprises a sensor for detecting manipulations of the cashbox (10), in particular for detecting damage to a housing (12) of the cashbox (10). The cashbox (10) according to claim 13 or 14, characterized in that a control unit (54) is provided, and that the control unit (54) the Tintenkit (30) triggers when the manipulation sensor (50) of the ink kit and / or the sensor of Cashbox (10) has detected a manipulation attempt.

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