EP2619735B1 - Method for monitoring the transport of bank notes - Google Patents

Description

The invention relates to a method for monitoring the transport of banknotes.

For processing banknotes, it is provided that the banknotes are entered as a loose stack in an input area and separated by a separator. The individual banknotes are transferred from the separator to a transport system and fed to the processing. Common forms of processing banknotes are the acceptance, checking and recognition of banknotes by means of sensors, where authenticity, type (currency, denomination), state (contamination, damage), etc. are detected. Based on the results of the examination and recognition, the banknotes are subsequently z. B. sorted, stacked, bundled, destroyed, etc.

For the processing of the banknotes in the banknote processing machines, it is of fundamental importance that the transport of the banknotes by the transport system takes place without error, ie. H. For example, no congestion or delays may occur.

To monitor the proper transport of banknotes, it is known to provide at one or more positions in the transport system photoelectric sensors, which detect the transport of banknotes. The light barriers detect the presence or absence of a banknote at the respective position of the light barrier. In particular, the leading edge and trailing edge of the transported banknotes are detected.

The monitoring of the transport system of banknote processing machines is for example off DE 10 2004 049 209 A1 and DE 100 50 486 A1 beakannt.

If problems occur during transport, it is not easy to identify what caused these problems.

Based on the aforementioned deficiencies, the invention has for its object to provide a method for monitoring the transport of banknotes, which allows an analysis of occurred transport errors.

The solution to this problem arises from the features of the independent claim. Further developments are the subject of the dependent claims.

The invention relates to a method for monitoring the transport of banknotes in a transport system, with arranged along the transport system sensors for the detection of transported banknotes, and a control device for monitoring and control of the transport system based on signals from the sensors, from which the control device In the absence or absence of a banknote at the location of the respective sensor is derived, wherein the signals of all sensors are stored by the controller in a memory, the signals of all sensors is assigned a unique time or clock, and all transported banknotes a unique object code of the control device is associated, which is linked to the unique time or time signature, and by evaluation of the stored signals of the sensors occurrence and type of errors in the transport of banknotes from deviations from expected presence or absence of Banknotes are derived, including the signals provided with the unique times or clock signals of the sensors are connected to the banknotes marked by the unique object codes, in which all signals set to a unique object code in connection to normalize the sensors on one of the sensors, in particular the first sensor in the transport system, for which the unique time or clock data for each sensor to be normalized by a delay difference or a clock number are shifted, with the difference in time or the number of clocks by the removal of each standardizing sensor from serving as a standardization basis sensor, a transport speed used in the transport system and the position of each sensor to be normalized with respect to serving as a standardization sensor in the transport system.

The advantage of the solution according to the invention is that an analysis of transport errors is made possible by the evaluation of the stored signals of the sensors, which allows to determine the location in the transport system or at least limit, where the transport error has occurred. Statements about the nature of an error that has occurred can additionally be derived from the stored signals of the sensors, which makes possible a particularly simple evaluation and analysis of transport errors, since all the signals of the sensors present to a transported banknote appear to be present at a single point in time Transport of banknote are particularly easy to determine.

In advantageous developments, it is provided to derive additional information characterizing the type and / or nature of the banknotes from signals of a sensor device and to store them linked to the object code of the respective banknote. Likewise, additional, the transport of banknotes characterizing information of the control device with the object code of the respective banknote are linked and stored.

As a result of the additional information characterizing the nature and / or condition or transport of the banknotes, a selection can be made in the evaluation of the stored signals of the sensors, which sensors must be taken into account for the respective banknote. As a result, the number of sensors to be considered for the evaluation or their signals can be limited.

Further embodiments and advantages of the invention are explained below with reference to figures and their description.

Figur 1

eine Ausführungsform eines prinzipiellen Aufbaus einer Banknotenbearbeitungsmaschine,

Figur 2 bis 5

Signale von Lichtschranken der Banknotenbearbeitungsmaschine nach Figur 1.

It shows

FIG. 1

an embodiment of a basic construction of a bank note processing machine,

FIGS. 2 to 5

Signals from photocells of the banknote processing machine after FIG. 1 ,

In FIG. 1 a basic structure of a banknote processing machine 100 for the processing of banknotes is shown.

The bank-note processing machine 100 has an input unit 110 into which banknotes are inserted. Connected to the input unit 110 is a singler 111, which extracts individual banknotes from the input unit 110 and transfers them to a transport system T. The transport system T transports the individual banknotes through a sensor device 112, which determines data from the banknotes, which, for example, allow conclusions to be drawn as to quality (authenticity, condition, etc.) and type (currency, denomination, etc.). The determined data of the banknotes are transferred to a control device 140, which evaluates the data and thus controls the further flow of the banknotes through the banknote processing machine 100. For this purpose, the control device 140 acts on points G01 to G21, which are components of the transport system T and allow the banknotes to be deposited according to predetermined criteria in output units E01 to E21. The output units E01 to E21 can be designed, for example, as spiral slot stackers, which stack the bank notes to be deposited by means of rotating units which have spiral compartments in storage units. In addition, a shredder S may be present, for. B. to destroy banknotes no longer fit 139. The banknote processing machine 100 can by means of a connected to the controller 140 input / output device 150, z. As a touch screen to be controlled by an operator.

Bank notes recognized by the sensor device 112 and the control device 140 are stored in the output units E01 to E21 as a function of the result of the check in accordance with predefined criteria. For example, banknotes with good condition (negotiable banknotes) can be stored in the output E11. For this purpose, the switch G11 is actuated by the control device 140. Banknotes with bad condition (banknotes that are no longer fit) are stored in the output E12. For this purpose, the switch G12 is actuated by the control device 140. Alternatively, banknotes with bad condition can also be destroyed by means of the shredder S. In this case, none of the turnouts G01 to G21 are operated by the controller 140. Banknotes that are not checked by the Sensor device 112 and the controller 140 can be detected, for example, stored in the output E01. For this purpose, the switch G01 is actuated by the control device 140.

Information about the number, type and, where appropriate, nature of the recognized banknotes are recorded and stored by the control device 140. The recognized banknotes can be billed by assigning the number of recognized bills and their type, or by a resulting total value, and credited, for example, a specific account or depositor.

During the transport of the banknotes by the transport system T, a monitoring of the respectively transported banknotes takes place by means of sensors arranged in the transport system T PD01 to PDS01. The sensors PDT01 to PDS01 can be formed, for example, by light barriers, which generate a logical one, for example, while no banknote is present, since in this case a detector of the light barrier receives light emitted by a light source, whereas the light barriers generate a logical zero as soon as a light source Banknote is present, since in this case the light source is covered by the banknote, which is why the detector receives at most strongly attenuated light. Instead of the transmission light barriers described above, it is also possible to use reflection light barriers or mechanical sensors, ultrasonic sensors, etc., which can detect the presence or absence of the bank notes.

A first light barrier PDT01 is arranged in the transport system T after the singler 111 and detects, for example, whether the singler 111 transfers banknotes to the transport system T at specific times. A second photoelectric barrier PDT02 is in front and a third photoelectric barrier PDT03 arranged after the sensor device 112. A fourth photoelectric barrier PDG01 is in front and a fifth photoelectric barrier PDE01 after the first switch G01. A sixth light barrier PDG11 is located in front and a seventh light barrier PDE11 after the second turnout G11. An eighth light barrier PDG12 is in front and a ninth light barrier PDE12 after the third turnout G12. A tenth photoelectric sensor PDG21 is in front and an eleventh photoelectric sensor PDE21 after the fourth digital G21. A twelfth photoelectric barrier PDS01 is located in front of the shredder S.

After the separation of a banknote by the separator 111, the banknote is transported by the transport system T and detected by the first light barrier PDT01. The signal of the first light barrier PDT01 is evaluated by the control device 140. Based on the signal change of the first light barrier PDT01 upon reaching the front edge of the banknote, the presence of the banknote is detected by the control device 140. The control device 140 assigns the banknote for further processing and follow-up in the transport system T a unique identification, for. B. one with each banknote increased by one number, which is hereinafter called the object code. By way of example, the banknote separated by the singler 111 is assigned to the object code 209 of the two hundred and fiftieth one. The banknote with the object code 209 is further transported by the transport system T and then reaches the second light barrier PDT02 in front of the sensor device 112. Since the length of the distance between the first light barrier PDT01 and second light barrier PDT02 and also the transport speed of the transport system T are known, a time can the control device 140 are determined, on which the bank note with the object code 209 reaches the second light barrier PDT02 during trouble-free operation.

Instead of monitoring certain times, it is also possible to determine a cycle for the transport system T which depends on the transport speed of the transport system T. For example, the clock can be set such that the time duration of a clock corresponds to the transport of a banknote located in the transport system T by 1 mm. If, for example, 40 banknotes are transported per second, with 25 cm per banknote (for the banknote and a gap to the next banknote), the result is a transport speed of 10 m / s for the transport system T. The duration of a cycle is in this case 100 μs. If the distance between the first light barrier PDT01 and the second light barrier PDT02 is, for example, 300 mm, a bank note coming from the first light barrier PDT01 requires 300 cycles or 30 ms until the second light barrier PDT02 is reached. If the distance between the second light barrier PDT02 and the third light barrier PDT03 is 700 mm, for example, the second light barrier PDT02 requires 70 ms or 700 cycles until the third light barrier PDT03 is reached. The clock can be obtained, for example, from the control device 140 from signals of a drive control of the transport system T. During generation, each of the clocks can be clearly numbered.

Since the distances of all light barriers PDT01 to PDS01 are known to one another, the control device 140 can determine the time duration or number of cycles required for the transport of a banknote from one light barrier to any other light barrier. As a result, the transport of all banknotes in the transport system T can be monitored by the control device 140. If, for example, the front edge of the banknote mentioned above with the object code 209 is detected by the first light barrier PDT01 at a certain time, then the third light barrier PDT03100 ms must also detect a leading edge later. The same applies if the above-mentioned clock is used. In this case, for example, the front edge of the banknote with the object code 209 is detected at a specific clock by the first light barrier PDT01, so that the third light barrier PDT03 1000 clocks later also has to detect a leading edge.

For monitoring the transport system T, the control device 140 evaluates the signals of the photoelectric barriers PDT01 to PDS01 and can generate warning signals in the event of deviations from expected presence or absence of banknotes or initiate measures for troubleshooting or for preventing damage to the banknote processing machine 100, e.g. B. stop the transport system T. In the evaluation of detected deviations by the control device 140, it may be provided that certain deviations are tolerated. For example, if the presence or absence of an expected bill at a particular photocell is detected by a few bars too early or too late.

After the occurrence of errors in the transport of the banknotes in the transport system T, an analysis of the errors should be made possible. For this purpose, information about the transport of the banknotes in a memory 141 of the control device 140 is recorded by the control device 140. The memory may be a nonvolatile memory, e.g. B. a solid state memory or a hard disk. For example, the information needed for the analysis may be stored in memory for a period of time, e.g. For example one or more hours, a day or a week. After the specified time period, the information will be overwritten with new information.

The information stored for the analysis of transport errors mainly contains the signals of the photoelectric sensors PDT01 to PDS01. The signals of the light barriers PDT01 to PDS01 are stored for each clock, ie, the respective information of each light barrier PDT01 to PDS01, whether a banknote is on and / or absent, each of the clocks is assigned unique, z. B. on the mentioned numbering of the clocks, and stored in the memory 141. In addition, information about the processed banknotes is stored. For this purpose, the object code of the banknotes is used. For example, the information is assigned to the object code at which timing the detection by the first light barrier PDT01 has taken place. For this purpose, the corresponding measure number is stored together with the object code. Furthermore, the result of the evaluation by the sensor device 112 can be assigned to the object code of the banknotes and stored. For this purpose, the object code of each banknote is assigned, for example, whether it could be recognized and, if so, the recognized type of banknote, ie, for example, to which currency and denomination it belongs. In addition, information about authenticity, condition, etc. can be stored together with the object code. In addition to or instead of this information, further information about the transport of the respective banknote can be stored together with the object code. If, for example, a banknote was not recognized by the sensor device 112 and the control device 140 during the check, the information can be stored that a deposit is provided in the output unit E01 for the banknote with the corresponding object code, for which purpose the diverter G01 must be switched. If, in another example, a banknote was detected during the check which is no longer suitable for the further circulation, the information can be stored that the destruction of the banknote with the corresponding object code by the shredder S is provided, for which none of the points G01 to G21 must be switched.

In the analysis of occurred transport errors, the stored information about the transport flow, i. H. the signals of the light barriers for the banknotes or their object codes, evaluated by the control device 140. For this purpose, there is a time standardization or a clock normalization for the respective banknote or its object code. In this context, standardization is understood to mean that all information available for a banknote or its object code is prepared in such a way and displayed on the input / output device 150 as if it had occurred at a single point in time.

For the above example, where a bill could not be detected by the sensor device 112 and the controller 140 during the check, the stored information of the transport flow is conditioned as if it had occurred at a single time or clock. For this purpose, the signals of all light barriers PDT01 to PDS01 are normalized to a single time or cycle. This is z. B. achieved in that the stored signals of the first light barrier PDT01 are used unchanged, whereas the signals of the subsequent light barriers PDT02 to PDS01 are temporally shifted according to their distance and the transport speed so that they correspond to the time of the signal of the first light barrier PDT01. In a corresponding manner, the signals of the light barriers can also be normalized to another light barrier if necessary. For the above, based on FIG. 1 described example, this means that the signals of the second light barrier PDT02 by 300 clocks or 30 ms forward and the signals of the third light barrier PDT03 by 1000 clocks or 100 ms are moved forward. The signals for a banknote transported without errors are then congruent for the first to third light barriers PDT01 to PDT03 or have only slight deviations. Accordingly, the signals of the fourth to twelfth light barriers PDG01 to PDS01 shifted in order to achieve the desired normalization to the signals of the first light barrier PD01. If the standardization is carried out on a light barrier PDT01 other than the first one, the arrangement of the light barriers in the transport system T must also be taken into account. Signals of light barriers, which, viewed in the direction of transport, lie after the light barrier serving as a standardization basis, must be shifted forward in terms of time or clockwise, as described above. Signals from photoelectric barriers, which, viewed in the transport direction, lie in front of the light barrier serving as a standardization basis, have to be shifted backwards in time or in terms of timing.

In the analysis, the further information can be taken into account. For the example mentioned above, in which a bill could not be detected by the sensor device 112 and the control device 140 during the test, for example, the preparation of the stored signals of the first to fifth light barrier PDT01 to PDE01 plus the sixth light barrier PDG11 is sufficient, since such notes are provided in the first output E01. In the case of error-free transport, the signals from the first to fifth photoelectric sensors PDT01, PDT02, PDT03, PDG01 and PDE01 will be identical. If, for example, an error has occurred at the first switch G01, as a result of which the banknote was not output to the first output unit E1 but was transported further, matching signals of the first to fourth photoelectric sensors PDT01, PDT02, PDT03, PDG01 and a matching, unanticipated signal result for the sixth photoelectric barrier PDG11, whereas there is no signal for the photoelectric barrier fifth photoelectric barrier PDE01. By this evaluation, the occurred transport error can be localized at the first switch G01.

To clarify the procedure described, further examples of the analysis of errors occurring in the monitoring of the transport of banknotes in the FIGS. 2 to 5 showing the signals of the light barriers of the bank-note processing machine 100, wherein a presence of banknotes with a high signal, the absence of banknotes with a low signal is shown.

In FIG. 2 the erroneous transport of banknotes with object codes 216, 217 and 218 is shown. The signals of the first and third to sixth photoelectric sensors PDT01, PDT03, PDG01, PDE01 and PDG11 are shown.

The signals of all the photocells shown are, as described above, normalized to the signal of the first light barrier PDT01, z. B. by the shift by a number of clocks, which corresponds to the distance between the light barriers. As a result, all events relating to a banknote or an object code appear to take place at a time or a clock. In the example shown, the banknote marked with the object code 209 begins with the clock n and ends with the clock n + 250, according to the example described above, according to which one clock corresponds to one millimeter and 25 cm transport path is available for each banknote. Subsequent banknotes with larger object codes 210 to 220 follow, according to the updating of the clock t, to the right of the first displayed object code 209.

The banknotes with the object codes 216, 217 and 218 have not been recognized by sensor device 112 and control device 140 in the illustrated example, for which reason they should be stored in the first output unit E01. In the analysis of the signals of the fifth and sixth light barriers PDE01 and PDG11, however, it is recognized that the banknotes with the object codes 216, 217 and 218 at the expected clock or the expected time have generated no signals at the fifth light barrier PDE01. Instead, signals 200 'were generated from the sixth photointerrupter PDG11 corresponding to the banknotes having the object codes 216, 217 and 218 at the expected clock. Thus, from the analysis of the signals of the light barriers, a transport error arising at the location of the first turnout G01 can be derived. As in FIG. 2 for the fifth light barrier PDE01, times 201 may be displayed at which signals are expected, e.g. As shown, tolerance ranges can be displayed for the times 201 of the expected signals.

In FIG. 3 the erroneous transport of a bill with an object code 1490 is shown. The signals of the first and third to fifth photointerrupters PDT01, PDT03, PDG01 and PDE01 are shown.

The signal 300 of the banknote with the object code 1490 at the fifth light barrier PDE01 is substantially longer than the signals of this banknote with the object code 1490 at the other light barriers PDT01, PDT03 and PDG01. At the time of transport of the banknote with the object code 1490, therefore, there was a mechanical resistance in the area of the fifth light barrier PDE01, which slowed down the transport of the banknote with the object code 1490 at this point.

In FIG. 4 erroneous singling and the subsequent transport of banknotes with object codes 1487 to 1489 are shown. The signals of the first and third to fifth photointerrupters PDT01, PDT03, PDG01 and PDE01 are shown.

For comparison, signals of the PDT01, PDT03, PDG01 and PDE01 photocells for banknotes with object codes 1485 and 1486 are shown. These banknotes were sorted without error by the separator 111 and transferred to the transport system T. The length of the banknotes and a gap 400 provided between them corresponds to error-free separation and error-free transport.

Following the banknote with the object code 1486, two banknotes were detected such that the gap 401 created between them is too small, which is why the banknotes can not be separated from one another and therefore only one object code 1487 is assigned to the two banknotes.

Finally, in the signals of the light barriers PDT01, PDT03, PDG01 and PDE01, a supposedly very large banknote 402 with an object code 1489 is shown, which, however, is larger than the largest permitted banknote. In the analysis, this signal of the supposedly very large banknote 402 can be interpreted as a shingled multiple deduction. This means that two or more overlapping banknotes have been transferred from the separator 111 to the transport system T. This interpretation of the signals of the photoelectric barriers PDT01, PDT03, PDG01 and PDE01 by the controller 140 can be confirmed by comparing the signals of the photoelectric sensors PDT01, PDT03, PDG01 and PDE01 with each other. While the signals of the photointerrupters PDT01, PDT03 and PDG01 for the object code 1489 seemingly indicate the uninterrupted presence of a banknote, the signal from the photointerrupter PDE01 shows a brief interruption and thus the presence of more than one banknote. The recognizable in the signal of the light barrier PDE01 gap between the multi-registered banknotes may arise during the transport of the shingled banknotes by the transport system T, z. B. by occurring there slip between the shingled banknotes, whereby the scaling of banknotes can be resolved.

In FIG. 5 the damage of a banknote with object code 235 during the transport of the banknote in the transport system T is shown. The signals from the third to eighth light barriers PDT03, PDG01, PDE01, PDG11, PDE11 and PDG12 are shown.

The banknote with the object code 235 is undamaged at the third light barrier PDT03, as can be seen from the signal in the area 500 of the third light barrier PDT03, which indicates the presence of the banknote over the entire length of the banknote. However, the signal in the area 500 of the subsequent light barrier PDG01 has an interruption for the banknote with the object code 235, which is shown as damage, for. B. as a crack or demolition, the bill with the object code 235 can be interpreted. Thus, the banknote having the object code 235 between third and fourth photoelectric sensors PDT03 and PTG01 must have been damaged.

If transport errors, z. As the damage to a bill described above, detected by the controller 140, the controller 140 may initiate countermeasures to disturb the operation of the banknote processing machine 100, z. As stagnation, or damage to the banknote processing machine 100 to avoid. For this purpose, it can be provided, for example, that the control device 140 stops the singler 111 and / or the transport system T. Likewise, it may be provided that the banknote for which a transport error has been detected is transported in a special output, for. B. the first output unit E01, in which all banknotes are transported, which must be manually reworked by the operator. It is also possible to use such banknotes into the next output unit so that they are removed from the transport system T as quickly as possible. In the example shown, the first diverter G01 arranged immediately after the fourth light barrier PDG01 is actuated by the control device 140 in order to remove the damaged bank note with the object code 235 from the transport system T and deposit it in the first output unit E01. In addition, the transport system 140 and / or the singler 111 may be stopped or the speed reduced.

In accordance with the measure introduced, information is stored in the memory 141 by the control device 140, as has been dealt with after the recognition of the transport error with the note marked with the corresponding object code. This allows a later post-processing by the operator, who can retrieve the corresponding information, for example by means of the input / output device 150.

In addition to the previously described evaluation and / or presentation of the information of the light barriers by means of the control device 140 and / or the input / output device 150, an analysis of the information can also be made elsewhere or by other means. For this purpose, for example, an interface 142, z. As a USB interface, be present to transfer the information. The information may be contained in lists or tables, for example. It is also possible to use the information as a script file, eg. B. as an XML file to write.

The detected errors, z. B. congestion or interference of a particular area of the transport system T can, for. B. be displayed by the input / output device 150. For this purpose, on the input / output device 150, a schematic representation of the banknote processing machine 100 are shown as z. In FIG. 1 is shown. The area of the transport system T in which the error was determined, for. B. between the light barriers PDT03 and PDG01 can then be particularly marked. Furthermore, the determined error type, z. B. congestion, are displayed.

In addition to the above based on FIG. 1 a banknote processing machine 100 described a number of modifications is possible. In addition to the illustrated central control device 140 and several decentralized control devices can be used, the z. B. certain sections of the transport system T and thus monitor and control certain light barriers. Likewise, more photocells may be present, for. B. within the sensor device 112. It is possible signals of individual sensors of the sensor device 112, z. As the mentioned optical, acoustic, mechanical, etc. sensors to evaluate how to derive from the signals a photocell the presence or absence of banknotes. In addition to the described banknote processing machine 100, which is essentially suitable for sorting banknotes, the transport of any other banknote processing machine, the z. B. suitable for the deposit and / or disbursement of banknotes be monitored and analyzed in the manner described above.

Claims (9)

1. A method for monitoring the transport of bank notes in a transport system (T), having sensors (PDT01 to PDS01) arranged along the transport system (T) for capturing transported bank notes, and a control device (140) for monitoring and controlling the transport system (T) on the basis of signals of the sensors (PDT01 to PDS01), from which the control device (140) derives a presence or absence of a bank note at the place of the respective sensor (PDT01 to PDS01), wherein
   the signals of all the sensors (PDT01 to PDS01) are stored by the control device (140), wherein the signals of all the sensors (PDT01 to PDS01) are assigned a unique time specification or cycle specification, all the transported bank notes are assigned by the control device (140) a unique object code, which is linked with the unique time specification or cycle specification, and through evaluation of the stored signals of the sensors (PDT01 to PDS01) occurrence and type of errors upon transport of the bank notes are derived from deviations from expected presences or absences of bank notes, for which purpose the signals of the sensors (PDT01 to PDS01), that are provided with the unique time specifications or cycle specifications, are associated with the bank notes denoted via the unique object codes,
   characterized in that
   all the signals of the sensors (PDT01 to PDS01) that are associated with a unique object code are normalized to one of the sensors (PDT01 to PDS01), in particular the first sensor (PDT01) in the transport system (T), for which purpose the unique time specifications or cycle specifications for each sensor (PDT01 to PDS01) to be normalized are shifted by a run-time difference or a cycle number, wherein the run-time difference or the cycle number result from the distance of the sensor (PDT01 to PDS01) to be respectively normalized from the sensor (PDT01) serving as a normalization basis, a transport speed employed in the transport system (T), as well as the location of the sensor (PDT01 to PDS01) to be respectively normalized in relation to the sensor (PDT01) in the transport system (T) that serves as a normalization basis.
2. The method according to claim 1, characterized in that additional information items denoting the type and/or quality of the bank notes are derived from signals of a sensor device (112) and stored so as to be linked with the object code of the respective bank note.
3. The method according to claim 2, characterized in that the additional information items denoting the type and/or quality of the bank notes are used for evaluating the stored signals of the sensors (PDT01 to PDS01), in order to select the sensors (PDT01 to PDS01) or their signals that are to be taken into account upon evaluation.
4. The method according to any of claims 1 to 3, characterized in that additional information items of the control device (140) that denote the transport of the bank notes are linked and stored with the object code of the respective bank note.
5. The method according to claim 4, characterized in that the additional information items denoting the transport of the bank notes are used for evaluating the stored signals of the sensors (PDT01 to PDS01), in order to select the sensors (PDT01 to PDS01) or their signals that are to be taken into account upon evaluation.
6. The method according to any of claims 1 to 5, characterized in that the signals of the sensors (PDT01 to PDS01) are edited by the control device (140) for a representation (150).
7. The method according to claim 6, characterized in that the control device (140), upon evaluation, classifies the signals of the sensors (PDT01 to PDS01) into expected or non-expected signals and edits expected and non-expected signals differently for the representation.
8. The method according to claim 7, characterized in that the control device (140) generates tolerance ranges for the expected signals of the sensors (PDT01 to PDS01) and edits them for the representation.
9. The method according to any of claims 1 to 8, characterized in that the method is employed for monitoring a transport path of a bank note processing machine.

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