Procedure for operating a labeling system

Abstract

Method for operating a labeling system for labeling individual packages, wherein the labeling system comprises a labeling device (1), in particular a price marking device, wherein the labeling device (1) is equipped with a feed arrangement (2) for transporting respective packages, with a dispensing arrangement (4) for dispensing a label detachable from a material strip (5), and with an application arrangement (6) for applying the dispensed label to the respective package as functional units for providing a respective labeling function, wherein at least one or all of these functional units each have a sensor arrangement (8, 9, 10) for determining sensor data relating to the labeling routine, wherein the labeling system has a control arrangement (11) which, in a labeling routine, controls the functional units for labeling the individual packages according to a control specification.and wherein the labeling system has a user interface (13), characterized in that a user query routine is carried out by means of the control arrangement (11), in which a user is prompted by means of the user interface (13) to enter a level of well-being concerning a functional aspect of the labeling system and the level of well-being subsequently entered by the user is recorded by the control arrangement (11), and in which the entered level of well-being is compared with a predetermined level of well-being by means of the control arrangement (11), and in the event of a deviation of the entered level of well-being from the predetermined level of well-being, a reaction routine is triggered by means of the control arrangement (11), in which a higher-level control arrangement (11) is called by means of the control arrangement (11).The external control system (14) trained for the labeling system receives a message about the entered level of well-being and in which the control setting is modified depending on the entered level of well-being.

Description

[0001] The invention relates to a method for operating a labeling system for labeling individual packages according to the preamble of claim 1, a labeling system for labeling individual packages according to the preamble of claim 23, a system with a control arrangement for such a labeling system according to the preamble of claim 24 and a computer program according to claim 26.

[0002] The labeling systems in question here for labeling individual packages comprise at least one labeling device, which is particularly designed as a price labeling device. The labeling device comprises at least one feed arrangement, a dispensing arrangement, and an application arrangement as functional units, which are configured for labeling the individual packages in a labeling routine. The functional units are controlled in the labeling routine by means of a control arrangement.

[0003] To ensure reliable and accurate labeling, the functional units are equipped with respective sensor arrays that acquire sensor data related to the execution of the labeling routine. A control array of the labeling system performs the control tasks associated with the execution of a labeling routine and controls the functional units for labeling the individual packages according to a control specification. Based on the acquired sensor data, for example, the position, orientation, and speed of the individual packages are determined and the application of the labels is controlled.

[0004] A problem with the labeling systems in question is that, although the sensor data allows for monitoring certain error patterns and error correction within the control of the functional units, systematic errors in the labeling routine that have a long-term impact on the quality of the labeling process are often not reliably automatically detected via the sensor data and eliminated by adjusting the control system.

[0005] The invention is based on the problem of specifying a method for operating a labeling system for labeling individual packages, wherein the monitoring of the labeling system is improved.

[0006] The above problem is solved in a method according to the preamble of claim 1 by the features of the characterizing part of claim 1.

[0007] The fundamental consideration is that systematic errors, which are not easily detected by the automatic evaluation of the sensor data, are often recognized by the human user, but due to the complexity of the labeling system, the user is not easily able to identify the immediate cause of the error.

[0008] In detail, it is proposed that a user query routine is carried out by means of the control arrangement, in which a user is requested by means of the user interface to enter a level of well-being relating to a functional aspect of the labelling system and the level of well-being subsequently entered by the user is recorded by the control arrangement, that the entered level of well-being is compared with a predetermined level of well-being by means of the control arrangement and in the event of a deviation of the entered level of well-being from the predetermined level of well-being, a reaction routine is triggered in which a message about the entered level of well-being is transmitted by means of the control arrangement to a control system which is higher-level than the control arrangement and is designed externally to the labelling system and in which the control specification is modified depending on the entered level of well-being.

[0009] It was recognized that the user query routine can be used to easily determine whether a defect exists in the labeling routine. The response routine then uses this routine to adjust the control specification to correct the defect. Based on the results of the user query routine, systematic errors can be detected with high reliability by involving the user. In the response routine, the control specification can be adjusted manually and / or automatically to correct the error. For manual adjustments, the user is preferably supported in troubleshooting.

[0010] The advantageous embodiments according to claims 2 and 3 relate to the modification of the control specification, which is further defined depending on the entered state of health. In the particularly expedient embodiment according to claim 4, a speed specification is modified and, in particular, reduced compared to a normal operating speed specification in order to continue the operation of the labeling system as far as possible.

[0011] In the particularly preferred embodiment according to claim 5, auxiliary information can be generated in the reaction routine, which serves to correct errors and can be forwarded to the user and / or maintenance personnel, thus significantly facilitating any necessary manual intervention in the labeling system. Also advantageous is the automatic generation of a notification, in particular to the manufacturer of the labeling system, according to claim 6.

[0012] The use of the external control system mentioned allows not only the inclusion of the labeling system in question according to claim 7 but also the consideration of sensor data from several labeling systems in the reaction routine, so that the reliability of the reaction routine is improved overall.

[0013] Also preferred is the generation of a forecast for the need for repair and / or maintenance of a functional unit according to claim 8, wherein, based on the entered condition level, a response can be made in advance to an impending problem. Particularly preferably, according to claim 9, a learning routine can be performed based on a chronological sequence of user query routines, whereby the large amount of data available, in particular with a large number of labeling systems, is utilized to optimize the response routine, in particular the forecast routine.

[0014] In the particularly user-friendly embodiment according to claim 10, the user is prompted via the user interface to select the level of well-being from a set of selectable levels of well-being. By representing an ascending scale from a low to a high level of well-being through the set of selectable levels of well-being, the input of the level of well-being and its consideration is simplified. The user can also be prompted to enter the control specification in a simple manner according to claim 11, whereby the cause of the error is further narrowed down to support the user in the response routine.

[0015] In order to avoid false triggering of the reaction routine, in a preferred embodiment a plausibility check of the entered state of well-being is carried out by means of the monitoring arrangement (claim 12).

[0016] Further functional units of the labeling device are defined in claim 13.

[0017] Claims 14 to 22 relate to preferred embodiments of the user query routine.

[0018] According to a further teaching according to claim 23, which has independent significance, the above-mentioned labeling system for labeling individual packages, which is designed to carry out the proposed method, is claimed as such. Reference is made to all statements regarding the proposed method.

[0019] According to a further teaching according to claim 24, which also has independent significance, a system with the above control arrangement, which serves, among other things, to execute the user query routine within the framework of the proposed method, and the above control system as such is claimed. Reference may be made to the above statements regarding the proposed method.

[0020] In an advantageous embodiment, the system comprises memory with program instructions and processors for implementing the control in the proposed method (claim 25).

[0021] According to a further teaching according to claim 26, which also has independent significance, a computer program is claimed comprising program instructions that cause the processors of the proposed system to carry out the proposed method when the computer program is running on the processors. The computer program can be stored in at least one memory, in particular a non-volatile memory. In this respect, reference may also be made to the above statements regarding the proposed method.

[0022] The invention will be explained in more detail below with reference to a drawing which merely represents an exemplary embodiment. Fig. 1 a schematic representation of the proposed labelling system with a proposed control arrangement for carrying out the proposed method and Fig. 2 a flowchart of the proposed procedure.

[0023] The invention relates to a method for operating a labeling system for labeling individual packages. Fig. 1 shows the labeling system in a schematic representation with a labeling device 1, which is designed in particular as a price labeling device.

[0024] The labeling device 1 is equipped with a feed arrangement 2 for transporting the respective packages. The feed arrangement 2 is preferably a belt conveyor or a roller conveyor, optionally also at least one robot arm, for moving the respective packages. The feed arrangement 2, here the belt conveyor, preferably has at least one conveyor belt 3, via which the respective packages, which are in the Fig. 1 are not shown, are transported along a transport direction.

[0025] Furthermore, a dispensing arrangement 4 is provided for dispensing a label that can be detached from a material strip 5. A label that can be detached from a material strip 5 refers in particular to a label that is releasably attached with its adhesive surface to a carrier strip that forms the material strip 5 and can consist of paper and / or plastic, for example. It is also possible for the label to be produced by separating a section from a printable or printed material strip 5, for example by cutting and / or tearing the material strip 5. The proposed method is preferably used for labels designed as adhesive labels, which already have an adhesive surface on the material strip 5. The use of adhesive-free labels, which are only provided with an adhesive surface later or are applied to an adhesive surface on the respective package, is also conceivable.

[0026] In addition, the labeling device 1, here in a common housing with the dispensing arrangement 4, has an application arrangement 6 for applying the dispensed label to the respective package. The dispensed label is preferably picked up by a stamp, which here is preferably designed as a pendulum stamp 7, and applied to the respective package. In particular, the stamp has a blow head for sucking on and blowing off the label. During application, the pendulum stamp 7 performs a movement along the transport direction in order to enable labeling of the package moved by the feed arrangement 2. With the application arrangement 6, the label can be applied by contact by pressing the label onto the package.Additionally or alternatively, it is conceivable that the label is applied without contact, for example by a blow head of the stamp blowing the label onto the package by generating a blast of compressed air directed towards the package.

[0027] The feed assembly 2, the dispensing assembly 4, and the application assembly 6 each form functional units of the labeling device 1. In addition to the functional units already mentioned, further functional units can be provided, as explained in more detail below. Likewise, the labeling system can also comprise multiple labeling devices 1, in particular as described here.

[0028] At least one or all of the functional units mentioned, here and preferably at least the feed arrangement 2, the dispensing arrangement 4 and the application arrangement 6, each have a sensor arrangement 8, 9, 10 via which sensor data relating to the execution of a labelling routine can be determined.

[0029] The labeling device 1 further comprises a control arrangement 11. In the labeling routine, the functional units are controlled by means of the control arrangement 11 for labeling the individual packages according to a control specification. For this purpose, the control arrangement 11 preferably comprises control electronics for implementing the control tasks arising within the scope of the labeling routine. The control arrangement 11 can, as in Fig. 1, shown in simplified form, is a central control arrangement 11 of the labeling system and / or the labeling device 1, which controls all or at least some of the functional units. It is also possible for the control arrangement 11 to have several decentralized, mutually communicating control units, with each functional unit preferably being assigned a control unit.

[0030] The sensor data acquired by the respective sensor arrangements 8, 9, 10 are transmitted to the control arrangement 11 and are used to control the functional units in the labeling routine according to the control specification. The control specification contains, among other things, instructions regarding how the functional units interact with each other depending on the available sensor data in order to implement the labeling routine according to the user's requirements. The control specification can be implemented via software by the control arrangement 11. In particular, the control specification contains control parameters that can be specified for implementing individual or multiple aspects of the labeling routine and modified by the user.

[0031] Each of the sensor arrangements 8, 9, 10 comprises at least one sensor and preferably a plurality of sensors, which determine sensor data based, for example, on optical, acoustic, mechanical, and / or electronic measurement variables. For example, the sensors are designed as temperature sensors and / or humidity sensors.

[0032] Preferably, the sensor arrangement 8 of the feed arrangement 2 can comprise sensors for determining the transport speed and the rotational speed of the drive arrangements driving the conveyor belt 3. The dispensing arrangement 4 comprises, for example, a sensor arrangement 9 with sensors for determining the speed, length, and current position of the material strip 5. The application arrangement 6 comprises, in particular, a sensor arrangement 10 for determining the position and attitude of the pendulum stamp 7. For further embodiments of the sensor arrangements and for the control specification, reference may be made to measures known to those skilled in the art for controlling the operation of the functional units of the labeling device 1 in the labeling routine using sensors.

[0033] The labeling system here preferably comprises a monitoring arrangement 12. During the labeling routine, the sensor data determined by the sensor arrangements 8, 9, 10 of the functional units are recorded in a monitoring routine by means of the monitoring arrangement 12. The recording of the sensor data serves to log the labeling routine and / or to automatically detect errors in the labeling routine.

[0034] The monitoring arrangement 12 can be integrated into the control arrangement 11. Likewise, the monitoring arrangement 12 can be implemented as a separate arrangement that communicates with the labeling system. The monitoring arrangement 12 can, for example, be configured as an external arrangement that communicates with the labeling system and in particular with the sensor arrangements 8, 9, 10 and / or the control arrangement 11 via a communications network.

[0035] The labeling system has a user interface 13, which here is preferably equipped with a touchscreen. The user interface 13 can be used to visualize the control specification, in particular control parameters of the functional units in the labeling routine, and, for example, also sensor data or variables derived therefrom, for a user of the labeling system. The user can also influence the execution of the labeling routine via an input via the user interface 13, for example, by at least partially specifying and / or changing the control specification.

[0036] What is essential now is that a user query routine is carried out by means of the control arrangement 11, in which a user is requested by means of the user interface 13 to enter a level of well-being relating to a functional aspect of the labelling system and the level of well-being subsequently entered by the user is recorded by the control arrangement 11, and that by means of the control arrangement 11 the entered level of well-being is compared with a predetermined level of well-being and in the event of a deviation of the entered level of well-being from the predetermined level of well-being a reaction routine is triggered in which by means of the control arrangement 11 a message about the entered level of well-being is transmitted to a control system 14 which is higher-level than the control arrangement 11 and is designed externally to the labelling system and in which the control specification is modified depending on the entered level of well-being.

[0037] The control system 14 is, in particular, an external data management arrangement, such as a back-end data management arrangement, which can also be superordinate to several control arrangements. "Superordinate" here means that the control system 14 can transmit commands, and in particular the control specification, to the control arrangement 11 or the control arrangements. The control system 14 can also be assigned to another entity, for example, the manufacturer of the labeling system, a maintenance and repair service for the labeling system, or the like. "External" here means that the control system 14 is designed separately from the labeling system and in particular from the control arrangement 11, and initiates and / or executes processes that run at least partially outside the labeling system.

[0038] The control arrangement 11 is preferably connected to the control system 14 via a communications network, which serves to transmit the message. The communications network can be wired and / or wireless and, for example, implemented at least partially via the Internet, a telephone network, a mobile network, and / or a wide area network (WAN). The message is generally representative of the entered well-being level and at least indicative of a deviation from the specified well-being level. In particular, the entered well-being level itself and / or a variable derived therefrom is transmitted to the control system 14. As will be explained below, the message can also contain further data relating to the labeling system and preferably at least parts of the sensor data mentioned.

[0039] Fig. Figure 2 shows a schematic flow of the proposed method with the user query routine and the reaction routine.

[0040] In action 15, a user of the labeling system is prompted via user interface 13 to enter a level of well-being regarding a functional aspect of the labeling system. "Level of well-being" is understood as a subjective quality measure based on a rating of the quality of the work result and / or the process quality with respect to the respective functional aspect.

[0041] In action 16, the user enters the level of well-being using the user interface 13.

[0042] The level of well-being entered by the user is recorded by the control arrangement 11 in action 17.

[0043] By means of the control arrangement 11, the user-entered comfort level is compared in action 18 with a system-specified comfort level. The specified comfort level for the affected functional aspect is representative, for example, of a normal operating course of the labeling routine and of the quality of the work result and / or the process quality with regard to the respective functional aspect corresponding to the expected quality. The entered comfort level does not necessarily have to be compared with a single specified comfort level. Rather, the entered comfort level can also be checked to determine whether it lies within a specified range of comfort levels.

[0044] In the reaction routine, in addition to the notification to the control system 14, the control specification is modified depending on the entered degree of well-being, whereby the modification can be carried out automatically, for example by the control arrangement 11 and / or the control system 14, or at least partially manually, for example by the control arrangement 11 and / or the control system 14 assisting the user in modifying the control specification.

[0045] In a preferred embodiment, the control specification is modified in the reaction routine depending on whether the entered comfort level falls below or exceeds the specified comfort level. Thus, a different modification of the control specification occurs if the level falls below the specified level than if the level exceeds the specified level.

[0046] In Fig. 2, if the predefined level of well-being is undershot in action 19, the reaction routine is triggered by the control arrangement 11. If the predefined level of well-being is undershot, it becomes clear, for example, that the quality of the work result and / or the process quality with regard to the respective functional aspect is below the quality expected by the user.

[0047] In contrast, the flow chart according to Fig. 2 in action 20, when entering the level of well-being, the predefined level of well-being was exceeded, and thus the control arrangement 11 recognized that there is an improved quality of the work result and / or improved process quality with regard to the respective functional aspect compared to previously. The level of well-being predefined by the system in this case is in particular the level of well-being that was entered by the user in a previous user query routine and which - expressing the user's dissatisfaction - was reduced compared to an optimal level of well-being. For example, following the previous user query routine, in which a comparatively low level of well-being was entered, maintenance or repair work was carried out on the labeling device 1, whereby the quality of the work result and / or the process quality with regard to the respective functional aspect improved.The user is now more satisfied and therefore enters a higher level of well-being than the specified one. Preferably, a response routine can also be triggered here using the control arrangement 11.

[0048] In a preferred embodiment, the reaction routine determines the degree of deviation between the input comfort level and the specified comfort level, and the reaction routine, in particular the modification of the control specification, is carried out depending on the degree of deviation. Thus, the reaction routine can take into account how far the current work result is from a result perceived by the user as optimal.

[0049] It is further preferred that the degree of condition and in particular the degree of deviation is checked by means of the control arrangement 11 and / or the control system 14 in the reaction routine for fulfillment of a predetermined urgency criterion. The urgency criterion is a measure of whether continued operation of the labeling system can no longer be guaranteed without a modification of the control specification. The reaction routine is carried out depending on the fulfillment of the urgency criterion, wherein if the urgency criterion is fulfilled, different measures are taken, in particular to protect the labeling system and / or the individual packages against damage, than if the urgency criterion is not fulfilled, wherein, for example, the modification of the control specification merely serves to optimize the labeling routine and / or a notification is generated.

[0050] Furthermore, it is preferably provided here, in particular in the event of non-fulfillment of the urgency criterion, that after the reaction routine, the labeling routine is continued with the modified control specification, here for one or more of the functional units, which is Fig. 2 is shown as action 21. If the urgency criterion is met, however, further execution of the labeling routine may, for example, be omitted or may only occur under further conditions, for example, if the user manually triggers the labeling routine.

[0051] If, by checking the entered level of well-being by means of the control arrangement 11 in action 18, it is determined that the entered level of well-being corresponds to the predefined optimal level of well-being, a reaction routine is preferably not triggered. Accordingly, the labeling routine in action 21 can continue to be executed, in particular with an unchanged control specification. It is also conceivable that even if the entered level of well-being corresponds to the predefined optimal level of well-being, a message is also sent to the control system 14, for example, for documentation purposes.

[0052] It is conceivable that the control specification for all functional units is changed in the reaction routine, for example by specifying modified control parameters for all functional units. However, the modification of the control specification is used, for example, to specifically adapt the control of the functional unit(s) affected by the functional aspect in the event of a deviation between the entered level of well-being and the specified level of well-being. In one embodiment, an assignment of at least one, in particular exactly one, of the functional units to the level of well-being is provided based on the relevant functional aspect. The control specification is then modified for the relevant functional aspect, for example by (only) modifying the control parameters of the functional unit affected by the functional aspect.

[0053] For example, the user is prompted to enter a level of well-being relating to a predetermined functional aspect (e.g., the quality of label application), with at least one functional unit being assigned to this predetermined functional aspect (e.g., the application arrangement 4). The assignment to a functional unit results in particular from the causality of the operation of the respective functional unit for the work result associated with the level of well-being and / or from the causality of the operation of the respective functional unit for the process quality associated with the level of well-being. Preferably, the assignment of the entered level of well-being to at least one, in particular exactly one, of the functional units is already predetermined in advance, i.e., before the start of the user query routine, based on a defined assignment rule.However, it is also conceivable that only in the reaction routine by means of the control arrangement 11 and / or by means of the control system 14 is an assignment of the entered degree of well-being to at least one, in particular exactly one, of the functional units carried out, preferably also on the basis of a fixed assignment rule, for example when the degree of well-being is entered in a free input by the user.

[0054] In a further embodiment, the labeling system has a plurality of functional units for at least one labeling function, for example, a plurality of application arrangements 4. In the reaction routine, the control specification for the relevant functional aspect can be changed such that the labeling function is taken over by a further functional unit in the labeling routine. Taking over the labeling function here means that a further functional unit performs at least one aspect of the labeling function that was previously performed by another functional unit. For example, the application of the labels, which is carried out by a first application arrangement before the reaction routine, is carried out partially or completely by a second application arrangement after the reaction routine.

[0055] Likewise, multiple functional resources can be provided for at least one labeling function. Functional resources are understood to be the basic materials required to execute the labeling routine, such as the material strips, printer ink, adhesives, or the like. In the reaction routine, the control specification for the relevant functional aspect is changed so that the labeling routine is executed using another functional resource. For example, by changing the control specification, an alternative material strip is used.

[0056] The control specification preferably includes a speed specification, which can in particular be a specification for the speed of the individual packages and / or a specification relating to cyclical or continuous operation of the labeling device. The specification for the speed of the individual packages can, for example, relate to the advance of the feed arrangement 2. The specification relating to cyclical or continuous operation can include whether cyclical operation takes place and / or the timing of cyclical operation. For example, the speed specification can specify time intervals in which the labeling routine is carried out and / or individual aspects of the labeling routine are carried out.

[0057] The speed specification is preferably modified in the reaction routine. If the specified level of comfort is undershot by the entered level of comfort, the speed specification can be reduced compared to a normal operating speed specification, further preferably while maintaining a minimum speed specification. By reducing the speed specification, the labeling routine can in many cases be carried out with improved results. The minimum speed specification preferably represents a minimum requirement for the throughput of the labeling system and is representative, for example, of a specified minimum quota of labeled individual packages within a specified period of time.

[0058] If the specified comfort level is exceeded by the entered comfort level, the speed setting can be increased compared to the normal operating speed setting, thus achieving higher productivity of the labeling system. Further preferably, an emergency stop of the labeling device is initiated if the entered comfort level falls below a minimum comfort level. The minimum comfort level represents a level below which, if exceeded, corresponds to a loss of quality that is unacceptable for the user.

[0059] Preferably, the control specification is modified at least partially by means of the control system 14, and the control specification is transmitted to the control arrangement 11 via the communications network. A modification of the control specification can also be requested by means of the control system 14. Preferably, in the reaction routine, auxiliary information, in particular auxiliary information relating to the use of a tool and / or a spare part, is generated by the control system 14 based on the entered condition, in particular based on the assignment of the relevant functional aspect, and the auxiliary information is output to maintenance personnel for the labeling system via the user interface 13 and / or by means of the control system 14.The control system 14 thus initiates a modification of the control specification by outputting the auxiliary information, and the user and / or maintenance personnel preferably perform a repair, maintenance, and / or maintenance based on the auxiliary information. The user and / or maintenance personnel can then perform a targeted action based on the auxiliary information.

[0060] In the response routine, the control arrangement 11 can generate a notification, in particular an email notification, to a manufacturer of the labeling system depending on the entered level of well-being. The notification is particularly representative of the entered level of well-being. Preferably, the notification is selected from a collection of predefined notifications depending on the entered level of well-being. For example, each level of well-being is assigned a predefined notification, and the notification associated with the entered level of well-being is selected.

[0061] Preferably, the modification of the control specification depends on the sensor data relating to the labeling routine, which is determined by the sensor arrangements 8, 9, 10. The control arrangement 11 and / or the control system 14 can thus evaluate the sensor data based on the entered condition level. In particular, alternative sensor data and / or a larger volume of sensor data are evaluated compared to error monitoring performed by the monitoring arrangement 12. In addition to an evaluation of the current sensor data, the modification of the control specification can preferably be specified by the control system 14 depending on previous sensor data stored in the control system 14 in order to improve error detection and / or error correction.

[0062] A further improvement of the reaction routine results from the fact that the modification of the control specification is specified by the control system 14 depending on sensor data from multiple labeling systems relating to the labeling routine. Preferably, the labeling systems are assigned to at least two different entities, in particular to different users and / or manufacturers. The modification of the control specification can thus be carried out based on a comparatively large amount of data and even on a plurality of independently operating labeling systems.

[0063] Particularly preferably, a prognosis routine is carried out in the reaction routine by means of the control system 14, in which a prognosis for the need for repair and / or maintenance of a functional unit is generated. Based on the entered condition level, it is thus estimated whether and, in particular, when an impairment of at least one of the functional units is to be feared. The prognosis can be generated based on a predefined prognosis model depending on the entered condition level and, preferably, on further parameters explained below. The prognosis is preferably output, for example, via the user interface 13 and / or via the auxiliary information, in particular if the prognosis fulfills a predefined output criterion.

[0064] A learning routine can be performed by means of the control system 14, which serves in particular to generate the forecast. In the learning routine, the modification of the control specification is carried out depending on a chronological sequence of well-being levels entered in user query routines. The chronological sequence preferably includes at least one well-being level entered following a reaction routine, so that the user's assessment of the effect of the reaction routine is taken into account in the learning routine. Preferably, the modification of the control specification is changed in the learning routine in such a way that the probability of maintaining the specified well-being level in a subsequent user query routine is increased if the entered well-being level deviates from the specified well-being level.

[0065] For the exemplary case where the result of the majority of temporal sequences in user query routines is negative, for example, if levels of well-being deviating from the specified level of well-being are frequently entered one after the other, the design of the response routine is clearly unsatisfactory. Consequently, the design of the response routine in the learning routine is preferably modified in such a way that the probability of maintaining the specified level of well-being in a subsequent user query routine is increased. Artificial intelligence methods can be used within the learning routine.

[0066] To improve the learning routine, the control specification is preferably further modified depending on the respective control specifications of the labeling device, sensor data relating to the individual packages, and / or environmental parameters of the labeling system. By taking the respective control specifications into account, the specific requirements of the respective labeling systems can be taken into account. Environmental parameters are understood to be parameters relevant to the boundary conditions of the labeling routine, in particular temperature, humidity, and / or air pollution levels. The air pollution levels can be a measure of a corrosive environment for the respective labeling device.

[0067] In a preferred, particularly user-friendly embodiment, the user is prompted in the user query routine via user interface 13 to select the level of well-being from a selection of selectable levels of well-being. This provides a particularly intuitive input of the level of well-being.

[0068] In one embodiment, the set of selectable levels of well-being can represent an ascending scale from a low to a high level of well-being. A low level of well-being expresses low user satisfaction, and a high level of well-being expresses high user satisfaction. The level of well-being can be represented, for example, by a numerical value, where a low numerical value represents a low level of well-being and a high numerical value represents a high level of well-being. The user is prompted in the user query routine to enter the level of well-being based on a selection from the scale.The control specification can therefore be modified in the reaction routine in a particularly simple manner based on the entered level of well-being, whereby, for example, control parameters are determined via a mathematical function from the level of well-being represented by the numerical value.

[0069] After the user has entered a level of well-being, in a preferred embodiment, the user is prompted in the reaction routine via the user interface 13 to manually modify the control specification, in particular control parameters of at least one functional unit. For example, the user can influence the amount by which the speed specification should be increased or reduced through an input. Preferably, at least one of the functional units is assigned to the entered level of well-being based on the relevant functional aspect, and the assignment is output to the user via the user interface 13, so that the user is indicated which functional unit(s) may be responsible for the deviation from the specified level of well-being. Accordingly, the user can already be given a recommendation as to which control parameters need to be modified.

[0070] In a preferred embodiment, if the entered well-being level deviates from the predefined well-being level, the control arrangement 11 and / or the control system 14 performs a plausibility check of the entered well-being level with regard to the presence of at least one predetermined plausibility criterion. A reaction routine is triggered only if the plausibility check is successful. By appropriately defining the plausibility criterion, an incorrect input of the well-being level can be detected during the plausibility check.

[0071] In preferred embodiments, the labeling device 1 comprises one or more additional functional units, each equipped with a sensor arrangement and controlled by the control arrangement 11 in the labeling routine according to the control specification. Regarding the application of these additional functional units and sensor arrangements in the proposed method, reference is made to the preceding explanations regarding the functional units feed arrangement 2, dispensing arrangement 4, and application arrangement 6.

[0072] Particularly preferably, a printer arrangement 22 is provided for printing the label that can be detached or has been detached from the material strip 5, wherein printing of the label can in principle take place on the material strip 5 and / or after the label has been detached from the material strip 5 and before the label is applied to the respective package. Here and preferably, a printer arrangement 22 configured for thermal printing is provided. The printer arrangement 22 is preferably a component of the dispensing arrangement 4 and prints the labels before they are dispensed, in particular at an outlet and / or a dispensing edge of the dispensing arrangement 4. The printer arrangement 22 has, for example, its own sensor arrangement with one or more sensors for monitoring the thermal printer and / or a camera for determining the printed image produced on the labels and / or for image recognition, e.g., for barcode recognition.

[0073] In a preferred embodiment, a label transport arrangement 23 is provided as a further functional unit of the labeling device 1 for transporting the label from the dispensing arrangement 4 to the printer arrangement 22 and / or to the application arrangement 6. The label transport arrangement 23 has, for example, a conveyor belt, in particular an endless belt, which transports labels from a receiving area, at which the label is removed from the dispensing arrangement 4, to a delivery area, in which the label is fed to the printer arrangement 22 or the application arrangement 6. The label transport arrangement 23 also has, for example, its own sensor arrangement with one or more sensors for determining the speed of the conveyor belt and / or the position and / or orientation of the labels on the conveyor belt.In the present case, the label printed by the printer arrangement 22 is dispensed and fed by means of the label transport arrangement 23 to the pendulum stamp 7 of the application arrangement 6, wherein the application arrangement 6 applies the label to a first side of the respective package.

[0074] Here, and preferably, a further dispensing and printing arrangement 24 is provided. The labels provided by the further dispensing and printing arrangement 24 are applied by a further application arrangement 25 to a second side of the respective package, which in this case is opposite the first side.

[0075] Here and according to a further embodiment, a weighing arrangement 26 for weighing the respective package is provided as yet another functional unit of the labeling device 1. The weighing arrangement 26 is configured to determine the weight of individual packages and transmits the determined weight to the control arrangement 11, so that, for example, the label can be printed with an individual weight marking and / or individual price marking.

[0076] In a preferred embodiment, a package recognition arrangement 27 is provided as yet another functional unit of the labeling device 1. The package recognition arrangement 27 has a sensor arrangement configured to provide sensor data for determining the shape, type, orientation, and / or position of the package. For this purpose, the package recognition arrangement 27 has, for example, at least one camera and preferably at least one 3D camera.

[0077] Another example of a functional unit that can be used within the framework of the proposed method is a movement arrangement for the printer arrangement, which in particular adjusts the printer arrangement transversely to the transport direction of the feed arrangement 2. An alignment arrangement for the packages, for example a centering device for the packages on the feed arrangement 2, can also be provided as a functional unit. According to a further embodiment, a label pressing arrangement is provided, for example a label pressing roller, which acts after and / or during application to the respective label.

[0078] According to a further preferred embodiment of the proposed method, the level of well-being is entered using an input device and an output device of the user interface 13. The input device preferably comprises at least one of a keyboard, touchscreen, mouse, and microphone. The output device preferably comprises at least one of a screen, touchscreen, loudspeaker, and printer.

[0079] In a further embodiment, the level of well-being can be entered using a user interface 13 configured as a mobile device, which can be provided on the labeling system in addition to or as an alternative to a stationary user interface 13. A mobile device is understood here to mean, in particular, a mobile phone, a personal digital assistant (PDA), a laptop, a wearable computer, and the like. The mobile device can communicate with the control arrangement 11 via a network, for example, a local area network, a mobile network, and / or the Internet.

[0080] The execution of the user query routine can be triggered in a time-controlled manner, in particular cyclically, whereby, for example, fixed time intervals and / or times specified in a schedule are provided for the user query routine. Additionally or alternatively, the user query routine can be triggered by the control arrangement 11 and / or the control system 14, for example, upon the sensor signals meeting a predetermined error criterion. The error criterion can represent a deviation of the sensor signals from a normal operating state of the labeling system. The execution of the user query routine can also be triggered by a predetermined user action.For example, the user query routine is triggered by the control arrangement 11 and / or the control system 14 in response to maintenance of the labeling system, a rebuild of at least parts of the labeling system, and / or a repair of the labeling system, so that a query of the state of health is performed at times with a high demand for process analysis. The user query routine can also be triggered manually by the user via the user interface 13.

[0081] In a further preferred embodiment, the user is prompted in the user query routine to enter the level of satisfaction regarding a functional aspect relating to the printed image of the labels. In particular, the functional aspect further relates to the brightness, the contrast, a print quality and / or the alignment of the printed image on the labels, whereby in particular an assignment of the functional aspect to at least one functional unit, in particular the printer arrangement 22, can be made. Print quality is understood in particular to mean the accuracy of the reproduction of a print original by the printed image and / or the number of printing errors. In a further embodiment, the functional aspect relates to the application of the labels to the respective packages, in particular the alignment, position and / or adhesion of the labels.According to a further embodiment, the functional aspect relates to the productivity of the labeling system and, for example, the number of labels applied over a predetermined time interval.

[0082] In a particularly preferred embodiment, the user query routine prompts the user to enter multiple levels of well-being via a hierarchy of queries, wherein at least one subordinate query is assigned to at least one higher-level query in the hierarchy. The "hierarchy of queries" can thus be understood as a predefined list of questions for a sequence of queries, wherein in particular the specification of a subsequent query is co-determined by the user's input(s) to at least one previously posed query. On the one hand, the hierarchy of queries can be used to create a sequence of frequently asked queries relevant to the respective labeling system. On the other hand, a targeted sequence of queries can be used to further narrow down the cause underlying a deviation from the predefined level of well-being.

[0083] Preferably, at least one functional unit is assigned to the entered comfort levels based on the hierarchy of queries. For example, the user query routine first queries the comfort level regarding print quality. For example, if the entered comfort level falls below the specified comfort level, a subsequent query can be made regarding the comfort level regarding brightness, contrast, print quality, and / or the alignment of the printed image on the labels. The assignment of at least one functional unit can be made depending on the entered comfort levels.

[0084] It is also possible that, within the hierarchy of queries, a part of a functional unit is assigned to a level of well-being.

[0085] If, for example, the print quality falls below the specified level of comfort, the printer arrangement 22 and in particular the print head of the printer arrangement 22 can be assigned to this entered level of comfort.

[0086] Multiple functional units can also be assigned to a level of comfort. For example, if there is a deviation from the specified comfort level for the alignment of the print image on the labels, the printer assembly 22 and the label transport assembly 23 can be assigned to the comfort level.

[0087] In a further embodiment, the hierarchy of queries in the user query routine is specified based on a previously entered level of comfort. For example, further levels of comfort are first queried regarding those functional aspects whose levels deviated from the respective specified level of comfort in a previously run user query routine.

[0088] To increase user-friendliness, the user can be prompted in the user query routine to enter one or more levels of well-being with regard to one functional aspect, several functional aspects or all functional aspects from a displayed selection of functional aspects.

[0089] To increase user-friendliness, in one embodiment, the user query routine for entering the level of well-being outputs, in particular visualizes, the compilation of selectable levels of well-being based on an arrangement of selection fields via the user interface 13. The selection fields are preferably visualized via an arrangement along a straight line, a circle, or a part of a circle, in particular a semicircle, via the user interface. The selection fields are accordingly displayed on a screen for easy identification by the user.To increase user-friendliness, the selection fields of the arrangement can be visualized with different colors (for example, from red for a low level of well-being to green for a high level of well-being) and / or with different labels (for example, with numerical values, labels and / or symbols such as smileys or the like).

[0090] In the user query routine, the level of well-being can be entered via the user interface 13 by tapping a selection field, for example, on a touchscreen. Likewise, the level of well-being can be entered by moving a selection field, for example, using a drag-and-drop functionality. Preferably, input is possible by moving a selection slider, with the user, for example, moving a slider along a scale for the level of well-being. Furthermore, free text input and / or voice input of the level of well-being are also conceivable.

[0091] According to a further teaching, which is of independent importance, the labelling system described above is claimed for labelling individual packages as such.The labeling system comprises a labeling device 1, in particular a price labeling device, wherein the labeling device 1 is equipped with a feed arrangement 2 for transporting respective packages, with a dispensing arrangement 4 for dispensing a label that can be detached from a material strip 5, and with an application arrangement 6 for applying the dispensed label to the respective package as functional units, wherein at least one of these functional units or all of these functional units each have a sensor arrangement 8, 9, 10, wherein the labeling system has a control arrangement 11 which, in a labeling routine, controls the functional units for labeling the individual packages according to a control specification, and wherein the labeling system has a user interface 13.

[0092] It is essential that the labeling system is configured to implement the proposed method. In particular, the control arrangement 11 is configured to control the functional units for executing the labeling routine, to carry out the proposed user query routine, and to transmit a message about the entered state of health to a higher-level control system 14 configured externally to the labeling system. The control arrangement 11 is accordingly configured to be connected to a control system 14 for transmission, for example, by having a network interface. Reference is made to all explanations of the proposed method in this regard.

[0093] According to a further teaching, which is also of independent significance, a system is claimed as such with a control arrangement 11 for a labelling system and a control system 14 which is superordinate to the control arrangement 11 and is designed externally to the labelling system, wherein the control arrangement 11 is set up to control the functional units of the labelling system in a labelling routine for labelling the individual packages in accordance with a control specification, and wherein the control arrangement 11 is set up to be connected in terms of control technology to a user interface 13 of the labelling system.

[0094] What is essential here is that the control arrangement 11 executes a user query routine in which a user is prompted via the user interface 13 to enter a level of well-being relating to a functional aspect of the labeling system. The level of well-being subsequently entered by the user is recorded by the control arrangement 11. The control arrangement 11 compares the entered level of well-being with a predefined level of well-being. If the entered level of well-being deviates from the predefined level of well-being, it triggers a reaction routine in which the control arrangement 11 transmits a message to the control system 14 regarding the entered level of well-being and in which the control specification is modified depending on the entered level of well-being. Reference may also be made in this regard to the explanations regarding the proposed method.The proposed labeling system described above preferably comprises the control arrangement 11 of the system.

[0095] Particularly preferably, the control arrangement 11 and the control system 14 each have a memory 28, 29 with program instructions and at least one processor 30, 31 for executing the program instructions, wherein the memories 28, 29 and the program instructions are configured, together with the processors 30, 31, to control the system for carrying out the proposed method.

[0096] The memory 28, 29 preferably comprises a non-volatile memory for the program instructions, for example, a flash memory, an EEPROM memory, a magnetic memory, and / or an optical memory. The memory 28, 29 may further be equipped with a working memory, preferably a random access memory (RAM) or the like. The processor 30, 31 preferably comprises a microprocessor, a digital signal processor, and / or an application-specific integrated circuit.

[0097] Furthermore, according to a subsequent teaching, which also has independent significance, a computer program comprising program instructions that cause the processors 30, 31 of the proposed system to carry out the proposed method when the computer program is running on the processors 30, 31 is claimed as such. Reference may also be made to the above statements regarding the proposed method in this regard. The computer program is preferably stored as a computer program product on a non-volatile memory.

Claims

[1] A method for operating a labelling system for labelling individual packages, wherein the labelling system comprises a labelling device (1), in particular a price labelling device, wherein the labelling device (1) is equipped with a feed arrangement (2) for transporting respective packages, with a dispensing arrangement (4) for dispensing a label detachable from a material strip (5) and with an application arrangement (6) for applying the dispensed label to the respective package as functional units for providing a respective labelling function, wherein at least one of these functional units or all of these functional units each comprise a sensor arrangement (8, 9, 10) for determining sensor data relating to the labelling routine, wherein the labelling system comprises a control arrangement (11),which, in a labelling routine, controls the functional units for labelling the individual packages according to a control specification, and wherein the labelling system has a user interface (13), , characterized bythat a user query routine is carried out by means of the control arrangement (11), in which a user is requested by means of the user interface (13) to enter a level of well-being relating to a functional aspect of the labelling system and the level of well-being subsequently entered by the user is recorded by the control arrangement (11), and that by means of the control arrangement (11) the entered level of well-being is compared with a predetermined level of well-being and in the event of a deviation of the entered level of well-being from the predetermined level of well-being, a reaction routine is triggered by means of the control arrangement (11), in which a message about the entered level of well-being is transmitted by means of the control arrangement (11) to a control system (14) which is higher-level than the control arrangement (11) and is designed externally to the labelling system and in which the control specification is modified depending on the entered level of well-being. [2] Method according to claim 1, characterized by that in the reaction routine the control specification is modified depending on whether the entered level of well-being falls below or exceeds the predetermined level of well-being, preferably that in the reaction routine a degree of deviation of the entered level of well-being from the predetermined level of well-being is determined by means of the control arrangement (11) and / or by means of the control system (14) and that the reaction routine, in particular the modification of the control specification, is carried out depending on the degree of deviation, further preferably that the entered level of well-being, in particular the degree of deviation, is checked by means of the control arrangement (11) and / or by means of the control system (14) in the reaction routine for fulfillment of a predetermined urgency criterion and that the reaction routine is carried out depending on the fulfillment of the urgency criterion. [3] Method according to claim 1 or 2, characterized bythat an assignment of at least one of the functional units to the degree of well-being is provided on the basis of the relevant functional aspect, or in the reaction routine, at least one of the functional units is assigned to the entered degree of well-being by means of the control arrangement (11) and / or by means of the control system (14), and that the control specification for the relevant functional aspect is modified, preferably that the labeling system has several functional units for at least one labeling function, and that in the reaction routine, the control specification for the relevant functional aspect is modified such that the functional aspect is adopted by a further functional unit in the labeling routine, and / or that several functional resources are provided for at least one labeling function, and that in the reaction routine, the control specification for the relevant functional aspect is modified such thatthat the labeling routine is performed using an alternative function resource., [4] Method according to one of the preceding claims, characterized bythat the control specification comprises a speed specification, in particular a specification for the speed of the individual packages and / or a specification relating to cyclical or continuous operation of the labelling device, for the labelling routine, and that the speed specification is modified in the reaction routine, preferably that if the entered level of well-being falls below the specified level of well-being, the speed specification is reduced compared to a specified, normal-operational speed specification, further preferably while maintaining a specified minimum speed specification, and / or that if the entered level of well-being exceeds the specified level of well-being, the speed specification is increased compared to the specified, normal-operational speed specification, further preferably,that if the entered level of comfort falls below a specified minimum level, the labelling device is stopped in an emergency. [5] Method according to one of the preceding claims, characterized by that the control specification is modified at least partially by means of the control system (14) and / or a modification of the control specification is requested, preferably that in the reaction routine by means of the control system (14) on the basis of the entered degree of well-being, in particular on the basis of the assignment of the relevant functional aspect, auxiliary information, in particular auxiliary information relating to the use of a tool and / or a spare part, is generated and that the auxiliary information is output to maintenance personnel for the labelling system via the user interface (13) and / or by means of the control system (14). [6] Method according to one of the preceding claims, characterized in that the control arrangement (11) in the reaction routine generates a notification, in particular an e-mail notification, to a manufacturer of the labeling system depending on the entered level of well-being, preferably that the notification is selected from a compilation of predetermined notifications depending on the entered level of well-being. [7] Method according to one of the preceding claims, characterized in that the modification of the control specification is dependent on the sensor data relating to the labeling routine, preferably in that the modification of the control specification is dependent on temporally preceding sensor data stored in the control system (14) and / or current sensor data, preferably in that the modification of the control specification is specified by means of the control system (14) depending on sensor data relating to the labeling routine of a plurality of labeling systems, preferably in that the labeling systems are assigned to at least two different entities, in particular to different users and / or manufacturers. [8] Method according to one of the preceding claims, characterized by that in the reaction routine, a prognosis routine is carried out by means of the control system (14), in which a prognosis for the need for repair and / or maintenance of a functional unit is generated. [9] Method according to one of the preceding claims, characterized bythat a learning routine is carried out by means of the control system (14), in which the modification of the control specification is carried out depending on a temporal sequence of degrees of well-being entered in user query routines, preferably depending on at least one degree of well-being entered subsequently to a reaction routine, preferably that the modification of the control specification is changed in the learning routine in such a way that the probability that, in the event of a deviation of the entered degree of well-being from the predetermined degree of well-being, the probability of adhering to the predetermined degree of well-being in a subsequent user query routine is increased, further preferably that in the learning routine the modification of the control specification is further dependent on the respective control specifications of the labelling device, on sensor data relating to the individual packages and / or on environmental parameters of the labelling system,in particular temperature, humidity and / or air pollution levels, in the respective user query routine. [10] Method according to one of the preceding claims, characterized by in that in the user query routine the user is requested by means of the user interface (13) to select the level of well-being from a compilation of selectable levels of well-being, preferably that the compilation of selectable levels of well-being represents an ascending scale from a low to a high level of well-being. [11] Method according to one of the preceding claims, characterized by that the user is prompted in the reaction routine by means of the user interface (13) to manually change the control specification for at least one functional unit. [12] Method according to one of the preceding claims, characterized bythat if the entered level of well-being deviates from the predetermined level of well-being, a plausibility check of the entered level of well-being is carried out by means of the control arrangement (11) and / or by means of the control system (14) with regard to the presence of at least one predetermined plausibility criterion and a reaction routine is triggered only if the plausibility check is successful. [13] Method according to one of the preceding claims, characterized bythat the labeling device (1) has a printer arrangement (22) for printing the label that can be detached or has been detached from the material strip (5), a label transport arrangement (23) for transporting the label from the dispensing arrangement (4) to the printer arrangement (22) and / or to the application arrangement (6), a weighing arrangement (26) for weighing the respective package and / or a package recognition arrangement (27) as a further functional unit or as further functional units with a respective sensor arrangement. [14] Method according to one of the preceding claims, characterized by that the input of the degree of well-being is carried out by means of an input arrangement and an output arrangement of the user interface (13), preferably that the input arrangement comprises at least one of a keyboard, touchscreen, mouse and microphone and / or the output arrangement comprises at least one of a screen, touchscreen, loudspeaker and printer. [15] Method according to one of the preceding claims, characterized by that the level of well-being is entered using a user interface designed as a mobile device. [16] Method according to one of the preceding claims, characterized by that the execution of the user query routine is triggered in a time-controlled manner, in particular cyclically, and / or that the execution of the user query routine is triggered by a predetermined user action, in particular maintenance, reconstruction and / or repair of the labeling system, by means of the control arrangement (11). [17] Method according to one of the preceding claims, characterized bythat in the user query routine the user is asked to enter the level of well-being regarding a functional aspect which concerns the printed image of the labels, in particular the brightness, the contrast, a print quality and / or the alignment of the printed image on the labels, which concerns the application of the labels, in particular the alignment, position and adhesion of the labels on the respective packages, and / or which concerns the productivity of the labelling system. [18] Method according to one of the preceding claims, characterized bythat in the user query routine the user is asked to enter several levels of well-being via a hierarchy of queries, wherein in the hierarchy of queries at least one higher-level query is assigned to at least one lower-level query, preferably that first the at least one higher-level query is carried out and if the entered level of well-being deviates from the predetermined level of well-being in the higher-level query the at least one lower-level query is carried out. [19] Method according to one of the preceding claims, characterized by that the hierarchy of queries in the user query routine is specified based on a previously entered level of comfort. [20] Method according to one of the preceding claims, characterized bythat in the user query routine the user is asked to enter one or more levels of well-being with regard to one functional aspect, several functional aspects or all functional aspects from a displayed selection of functional aspects. [21] Method according to one of the preceding claims, characterized by that in the user query routine for entering the degree of well-being, the compilation of selectable degrees of well-being is output on the basis of an arrangement of selection fields by means of the user interface (13), preferably that the selection fields are visualized via an arrangement along a straight line, a circle or a semicircle by means of the user interface (13), and / or that the selection fields of the arrangement are visualized with different colors and / or markings. [22] Method according to one of the preceding claims, characterized bythat in the user query routine, the input of the degree of well-being is carried out by means of the user interface (13) by tapping a selection field, moving a selection field and / or a selection controller, a free text input and / or a voice input. [23] A labelling system for labelling individual packages, the labelling system comprising a labelling device (1), in particular a price labelling device, the labelling device (1) being equipped with a feed arrangement (2) for transporting respective packages, with a dispensing arrangement (4) for dispensing a label detachable from a material strip (5), and with an application arrangement (6) for applying the dispensed label to the respective package as functional units for providing a respective labelling function, at least one of these functional units or all of these functional units each comprising a sensor arrangement (8, 9, 10) for determining sensor data relating to the labelling routine, the labelling system comprising a control arrangement (11) which, in a labelling routine, controls the functional units for labelling the individual packages according to a control specification,and wherein the labeling system has a user interface (13), , characterized by that the labelling system is designed to carry out a method according to one of claims 1 to 22. [24] System with a control arrangement for a labelling system according to claim 23 and with a control system (14) which is superordinate to the control arrangement (11) and is designed externally to the labelling system, wherein the control arrangement (11) is designed to control the functional units of the labelling system in a labelling routine for labelling the individual packages according to a control specification, and wherein the control arrangement (11) is designed to be connected for control purposes to a user interface (13) of the labelling system, characterized bythat the control arrangement (11) carries out a user query routine in which a user is requested by means of the user interface (13) to enter a level of well-being relating to a functional aspect of the labelling system and the level of well-being subsequently entered by the user is recorded by the control arrangement (11), that the control arrangement (11) compares the entered level of well-being with a predetermined level of well-being and, in the event of a deviation of the entered level of well-being from the predetermined level of well-being, triggers a reaction routine in which the control arrangement (11) transmits a message to the control system (14) about the entered level of well-being and in which the control specification is modified depending on the entered level of well-being. [25] System according to claim 24, characterized bythat the control arrangement (11) and the control system (14) each have a memory (28, 29) with program instructions and at least one processor (30, 31) for executing the program instructions, and that the memories (28, 29) and the program instructions are set up, together with the processors (30, 31), to control the system for carrying out a method according to one of claims 1 to 22. [26] A computer program comprising program instructions which cause the processors (30, 31) of a system according to claim 25 to carry out a method according to any one of claims 1 to 22 when the computer program is running on the processors (30, 31).

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