Method, vehicle and mobile device as well as medium

Abstract

The invention relates to a method (7) for operating a screen (2) in a vehicle (1) in which work and / or entertainment content (11) independent of the vehicle (1) is displayed on a display surface (3) of the screen (2) which can be viewed by a vehicle occupant who is not engaged in driving the vehicle (1). To reduce the likelihood of motion sickness, sensors (4) continuously record the vehicle's movement parameters (1), which are also detectable by the vehicle occupant's sense of balance. Furthermore, motion content (12) is generated that correlates with the movement parameters, and this motion content (12) is displayed on the display surface (3) in addition to the work and / or entertainment content (11).

Description

[0001] The present invention relates to a method for operating a screen in a vehicle. The invention further relates to a vehicle equipped with a screen. The invention also relates to a mobile device equipped with a screen. Finally, the invention relates to software or a medium containing instructions for carrying out the method.

[0002] While traveling in a vehicle, passengers (male / female / diverse) can occupy themselves in various ways. A very popular activity is viewing a screen, which may be permanently installed in the vehicle, part of a mobile device such as a mobile phone, tablet, or laptop, or connected to the vehicle or device, like smart glasses. The screen can display various work-related and / or entertainment content. For example, a passenger might use the screen to work or study if it displays work-related content, or to be distracted if it shows entertainment such as books, films, or games.

[0003] Vehicle occupants who look at a screen while driving are at risk of developing motion sickness after prolonged viewing or screen time. Symptoms of motion sickness can range from headaches and nausea to vomiting. Motion sickness, also known as seasickness, occurs primarily when a person is exposed to two conflicting sensory perceptions regarding their position in space. When looking at a screen, the eyes perceive a stationary state, while while driving, the sense of balance, especially during curves, perceives a mobile state. To avoid more severe symptoms of motion sickness, it is therefore common and advisable to reduce screen time.

[0004] With the ongoing efforts to establish autonomous driving, the desire to be able to occupy oneself in the vehicle in a familiar way is growing. In particular, a driver (male / female / diverse) may wish to use the time when they are not responsible for driving the vehicle during autonomous operation to look at a screen. It is therefore not helpful if the driver suffers from motion sickness towards the end of the autonomous driving period and is no longer able to safely resume control.

[0005] The present invention addresses the problem of providing a way to view a screen in a vehicle that allows for longer screen times or reduces the possibility of suffering from motion sickness.

[0006] This problem is solved by the subject matter of the independent claim. Advantageous embodiments are the subject matter of the dependent claims.

[0007] The invention is based on the general concept of displaying motion content on the screen, in addition to work and / or entertainment content, illustrating or simulating the vehicle's movement. This allows the person viewing the screen for work and / or entertainment to simultaneously perceive the motion content and thus unconsciously adjust the sensory impression perceived through sight to that perceived through the sense of balance, thereby reducing the tendency to experience motion sickness. This makes it possible to increase screen time even while traveling in a vehicle.

[0008] Specifically, the invention proposes a method for operating a screen in a vehicle, in which work and / or entertainment content independent of the vehicle is displayed on a screen surface, which can be viewed by a vehicle occupant who is not engaged in driving the vehicle. In this method, motion parameters of the vehicle are continuously detected by sensors, which can also be perceived by the vehicle occupant's sense of balance. Furthermore, motion content is generated within the framework of the method that correlates with the motion parameters, and this motion content is then displayed on the screen surface in addition to the work and / or entertainment content.The proposed measure allows vehicle occupants to consciously perceive work and / or entertainment content while viewing the screen, and also to consciously or unconsciously perceive the motion. Since the motion parameters detected by the sensors correlate with the impressions perceived by the occupant through their sense of balance, the motion perceived visually correlates with the sensory impression perceived through the sense of balance. Consequently, the discrepancy between visual and balance perceptions is reduced, thus decreasing the tendency towards motion sickness.

[0009] According to an advantageous embodiment, the motion parameters can include vehicle acceleration, which is measured with respect to sign, magnitude, and direction. Vehicle acceleration can be positive, causing the vehicle's speed to increase. Vehicle acceleration can also be negative, causing the vehicle to decelerate and its speed to decrease. Furthermore, vehicle acceleration can also be perpendicular to the direction of travel, representing lateral acceleration, which occurs when cornering. Accelerations also occur when driving over uneven road surfaces and when encountering changes in road gradient.

[0010] According to a preferred embodiment, the motion content can be displayed as moving content on the display surface, moving in a direction that correlates with the sign and direction of the vehicle acceleration and in a direction that correlates with the magnitude of the vehicle acceleration. For example, the vehicle may be negotiating a left turn, resulting in forces acting to the right on the vehicle and its occupants. Consequently, the motion content on the display surface can be moved to the right so that the visual impression largely corresponds to the vestibular impression. Conversely, if the vehicle decelerates, the occupant experiences a forward force. To compensate for this, the motion content on the display surface can be moved forward accordingly.

[0011] According to an advantageous embodiment, the motion content can be generated depending on the spatial orientation of the display surface relative to the vehicle. For example, the screen in the vehicle can be arranged such that one plane of the display surface extends substantially perpendicular to the vehicle's longitudinal direction. Forces acting in the longitudinal direction of the vehicle can then lead to vertical movements of the motion content on the screen. Transverse forces, on the other hand, lead to horizontal movements of the motion content on the screen. If, however, the screen is arranged perpendicular to the vehicle's transverse direction, forces acting in the longitudinal direction of the vehicle can generate a horizontal movement of the motion content on the display surface, while forces acting in the transverse direction of the vehicle lead to a horizontal movement of the motion content on the display surface.

[0012] According to an advantageous embodiment, the screen and sensors can be permanently installed in the vehicle. In this case, the screen and sensors are vehicle-integrated. The screen can, for example, be located in the front of the vehicle and integrated into a center console. Similarly, the screen can be located in the rear of the vehicle and integrated into the roof or the backrest of a front seat. Modern vehicles already have sensors installed to provide data for driver assistance systems.

[0013] In an alternative embodiment, the screen and sensors can be permanently installed in a mobile device that is located in or carried in the vehicle. The mobile device could be, for example, a mobile phone, a tablet computer, or a laptop computer. Modern mobile phones may already be equipped with such sensors to detect accelerations and the like.

[0014] Furthermore, a configuration is possible in which the screen is implemented in a pair of glasses that can be connected to the vehicle or the end device via a suitable wired or wireless connection to display work and / or entertainment content and motion-related information. In particular, the glasses can be connected to the vehicle's or end device's screen control system, which will be discussed in more detail below.

[0015] In the present context, a “configuration” is synonymous with a “design” and / or “setup” and / or “programming”, so that the phrase “configured so that” is synonymous with the phrase “designed so that” and / or “set up so that” and / or “programmed so that”.

[0016] According to an advantageous embodiment, the work and / or entertainment content and the motion content can each be displayed substantially across the entire display area, with the motion content being shown in the background of the work and / or entertainment content, such that the motion content is recognizable to the respective vehicle occupant through the work and / or entertainment content. This allows the vehicle occupant to unconsciously perceive the motion content while viewing the work and / or entertainment content. The motion content can, for example, be a representation of the surroundings generated by a vehicle-mounted camera, depicting an area of ​​the surroundings that actually falls within the vehicle occupant's field of vision when looking at the screen.

[0017] In another embodiment, the motion content can be displayed on the screen with a smaller area than the work and / or entertainment content. In particular, the motion content can be displayed on the screen at the edge of the work and / or entertainment content and / or within the work and / or entertainment content, so that the motion content overlays the work and / or entertainment content. For example, the motion content can be displayed exclusively at the edge of the work and / or entertainment content. Likewise, the motion content can be displayed exclusively within the work and / or entertainment content. Furthermore, a combined display is also conceivable, in which the motion content is displayed partly at the edge of the work and / or entertainment content and partly within the work and / or entertainment content.This measure intensifies the perception of the movement content, which improves synchronization with sensory perceptions received via the sense of balance.

[0018] According to an advantageous embodiment, the motion content can be displayed on the screen in several spaced-apart sub-areas, while the work and / or entertainment content is displayed in a single, continuous area. This allows the vehicle occupant to concentrate better on the work and / or entertainment content, while the motion content is perceived largely peripherally or subconsciously.

[0019] A vehicle according to the invention is equipped with at least one screen having a display area, with sensors for detecting motion parameters that can also be detected by the sense of balance of a vehicle occupant located in the vehicle, and with a screen control system that is coupled to the respective screen and to the sensors and is configured so that the screen control system performs the method described above.

[0020] A mobile device according to the invention, in particular a mobile phone or a tablet computer or a laptop computer, comprises a screen having a display area, sensors for detecting motion parameters which can also be detected by the sense of balance of a vehicle occupant who is in a vehicle together with the terminal device, and a screen control which is coupled to the screen and to the sensors and which is configured such that the screen control performs the method described above.

[0021] A non-volatile, machine-readable medium according to the invention contains instructions which, when executed by a data processing device, perform the method described above.

[0022] Further important features and advantages of the invention will become apparent from the dependent claims, the drawings and the associated description of the figures based on the drawings.

[0023] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or individually, without departing from the scope of the invention as defined by the claims. Components of a higher-level unit, such as a device, apparatus, or arrangement, mentioned above and those to be mentioned below, which are designated separately, can form separate parts or components of this unit or be integral areas or sections of this unit, even if this is depicted differently in the drawings.

[0024] Preferred embodiments of the invention are shown in the drawings and are explained in more detail in the following description, wherein identical reference numerals refer to identical or similar or functionally identical components.

[0025] They show, schematically, Fig. 1. A view of a vehicle within the area of ​​a screen, Fig. 2 different embodiments a to e of a representation of motion content on the screen, Fig. 3 a highly simplified schematic representation of a screen control system, Fig. 4. A flowchart of a procedure for operating the screen.

[0026] Accordingly Fig. 1. A vehicle 1 comprises at least one screen 2 having a display area 3. The vehicle 1 is also equipped with sensors 4 configured to detect motion parameters. These motion parameters can also be detected by the sense of balance of a vehicle occupant (not shown) located in the vehicle 1. Such motion parameters include, in particular, accelerations and inclinations of the vehicle 1 relative to its surroundings. Furthermore, the vehicle 1 is equipped with a screen controller 5, which represents a data processing device 6 and is coupled to the respective screen 2 and the sensors 4 in a suitable manner, for example, by means of cables (not shown). The screen controller 5 is also configured to execute a method 7, which is described below with reference to Fig. Section 4 will be explained in more detail. In the example shown, vehicle 1 is the Fig. 1. A mobile device 8 is also arranged, which in the example shown is a laptop computer. Alternatively, the device 8 could also be a mobile phone or a tablet computer. The device 8 also has a screen 2 with a display area 3. Furthermore, the device 8 is also equipped with a sensor 4 (not shown) for detecting the motion parameters and with a screen controller 5, which is coupled to the screen 2 and the sensor 4 and also represents a data processing device 6. Here, too, the screen controller 5 is configured so that it can execute the procedure 7, or executes it when this functionality is activated. The respective screen controller 5 or the data processing device 6 has access to a non-volatile, machine-readable medium 9.Such a medium 9 represents a stored computer program and may, in particular, include a storage element on which the computer program is stored. In any case, the medium 9 contains instructions which, when executed by the data processing device 6 or by the screen controller 5, perform the aforementioned procedure 7.

[0027] In the example of the Fig. 1. Vehicle 1, without restriction to the general public, contains, purely as an example, three permanently installed screens 2 and the terminal device 8, whose screen 2 is mobile relative to vehicle 1. Furthermore, vehicle 1 can contain a Fig. 3 symbolically indicated screen glasses 17 are arranged, which also have such a screen 2 with display area 3 and which are connected in a suitable manner, either wired or wirelessly, to the screen control 5 of the vehicle 1 or the terminal device 8.

[0028] Accordingly Fig. 4 The procedure 7, which is configured to operate the respective screen 2 in the vehicle 1, comprises at least four steps 10. The steps 10 include a first step 10.1, in which work and / or entertainment content 11, independent of the vehicle 1, is displayed on the display area 3 of the respective screen 2. This work and / or entertainment content 11 can represent a book or magazine, a film or game, or a document to be edited by the vehicle occupant. This work and / or entertainment content 11 can be viewed by a vehicle occupant who is not engaged in driving the vehicle 1. In the example of the Fig. 1. The three screens 2, which are permanently installed in the vehicle 1, are arranged next to each other with respect to the transverse direction of the vehicle, thus forming a left screen 2, a middle screen 2 and a right screen 2. In the example of the Fig. The work and / or entertainment content 11 is displayed only on the middle screen 2 and / or the right screen 2, which are assigned to the passenger side of the vehicle 1. The left screen 2, on the other hand, is assigned to the driver's side of the vehicle 1. As long as the occupant on the driver's side is engaged in driving the vehicle 1, no such work and / or entertainment content 11 is displayed on the driver's side screen 2. Furthermore, the work and / or entertainment content 11 can also be displayed on the screen 2 of the terminal device 8, which can be positioned anywhere in the vehicle 1 and thus viewed by the respective occupant. The same applies to the screen glasses 17.

[0029] Step 10 further comprises a second step 10.2, in which the aforementioned movement parameters of the vehicle 1, which can also be detected by the sense of balance of the respective vehicle occupant, are continuously recorded by means of the sensors 4. Step 10 further comprises a third step 10.3, in which movement content 12 is generated that correlates with the movement parameters. Step 10 further comprises a fourth step 10.4, in which the movement content 12 is displayed on the display area 11 of the respective screen 2 in addition to the work and / or entertainment content 11. Fig. 1. On the middle screen 2, the motion content 12 is symbolized by points arranged horizontally next to each other. On the right screen 2, the motion content 12 is symbolized by horizontal lines lying horizontally next to each other. On screen 2 of the terminal device 8, the motion content 12 is again symbolized by points lying horizontally next to each other. In the examples of the Fig. 2. The movement content 12 is also symbolized by lines, which in the example of the Fig. 2a are horizontally aligned and in the examples of the Fig. 2b, Fig. 2c and Fig. 2e are vertically aligned.

[0030] The motion parameters can expediently include vehicle acceleration, which is recorded with respect to sign, magnitude, and direction. The motion content 12 can then be displayed as moving content on the display area 3 of the respective screen 2, with the moving content moving with a direction and speed relative to the display area 3. The direction of movement of the moving content correlates with the sign and direction of the vehicle acceleration, while the speed of movement of the moving content correlates with the magnitude of the vehicle acceleration. For example, with strong lateral acceleration causing the vehicle 1 to turn left, the motion content may move to the right at a relatively high speed on the respective display area 3 from the perspective of the vehicle occupant.If, on the other hand, vehicle 1 passes through a right-hand curve with comparatively low lateral acceleration, the motion content 12 on the display surface 3 moves to the left at a relatively low speed from the perspective of the vehicle occupant.

[0031] The in Fig. The screens 2 shown in Figure 1 are each uniformly aligned with respect to the vehicle 1, namely such that the display area 3 is essentially perpendicular to the vehicle's longitudinal direction. At least for the mobile device 8, an arrangement within the vehicle 1 is also conceivable in which the screen 2 has a different spatial orientation relative to the vehicle 1. For example, the device 8 can be positioned in the vehicle 1 such that the display area 3 extends essentially perpendicular to the vehicle's transverse direction. The orientation of the screen 2, or the display area 3, depends on the orientation of the vehicle occupant who wishes to view the screen 2. In the third step, 10.3, the motion content is expediently generated as a function of the spatial orientation of the display area 3 relative to the vehicle 1, in order to take into account the orientation of the respective display area 3 and thus of the vehicle occupant.

[0032] In the example of the Fig. The three vehicle-mounted screens 2 and the vehicle-mounted sensors 4 are permanently installed in the vehicle 1. Furthermore, the associated screen 2 and the associated sensors 4 are permanently installed in the mobile device 8, which is located in the vehicle 1. In contrast, the screen glasses 17 are detached from the vehicle 1 and the mobile device 8.

[0033] In an advantageous embodiment, which in Fig. As depicted in Figure 2d, the work and / or entertainment content 11 and the motion content 12 can each be displayed substantially across the entire display area 3. In other words, the entire display area 3 represents both the work and / or entertainment content 11 and the motion content 12. However, in this embodiment, it is additionally provided that the motion content 12 is displayed on the display area 3 in the background of the work and / or entertainment content 11, such that the motion content 12 is translucent and recognizable, i.e., visible through the work and / or entertainment content 11 in the manner of a watermark. In the other examples of the Fig. In contrast, in 1 and 2a to 2c and 2e, the motion content 12 is displayed on the display area 3 in a smaller proportion of the area than the work and / or entertainment content 11. It may be expedient to provide that the motion content 12 is displayed according to the examples in the Fig. 1 and 2a to 2c are displayed or shown on display area 3 at the edge of the work and / or entertainment content 11. Alternatively, according to Fig. 2e It is also conceivable that the motion content 12 is displayed or represented on the display area 3 within the work and / or entertainment content 11. Likewise, according to Fig. 2e It is conceivable that the motion content 12 is displayed partly at the edge and partly within the work and / or entertainment content 11 on the display area 3. In the examples of Fig. In sections 1 and 2a to 2c and 2e, the motion content 12 is displayed on the display surface 3 in several spaced-apart sub-areas 13, as shown in the examples of Fig. 2a to 2c and 2e as well as on the vehicle's right-hand screen 2 of the Fig. 1 are designed in a linear fashion. In the vehicle's central screen 2 and in screen 2 of the terminal device 8, the following are in Fig. 1. The sub-areas 13 are displayed as points. In contrast, the work and / or entertainment content 11 is preferably displayed on the respective display area in a continuous piece, so that it preferably extends across the entire screen 2 or the entire display area 3.

[0034] In Fig.Figure 3 shows a simplified representation of how the screen control 5 is linked to various sensor components 4 and to different screens 2. The screens 2 can be, for example, at least one rear seat screen 14, a passenger screen 15, a center console screen 16, and, in particular, a pair of screen glasses 17, which can be configured to generate augmented reality. These screen glasses 17 can be connected wirelessly or via a wired connection to the vehicle's screen control 5 or to the screen control 5 of the mobile device 8. The sensor system 4 can, for example, include a yaw sensor 18, an accelerometer 19, and access a navigation device 20 for navigation data as well as a vehicle control unit 21, for example, for speed data.Furthermore, the sensor 4 can also be connected to an interior camera 22, which can be used to monitor the vehicle occupants.

[0035] In addition to traditional displays, head-up displays and AR glasses are increasingly being used as screens 2 in vehicles 1, partially or completely obscuring the real environment, which can exacerbate motion sickness. This form of nausea arises from conflicting sensory information. While the vestibular system perceives movement, the eyes focus on stationary objects when viewing the screen 2, namely the work and / or entertainment content 11, leading to a perceptual conflict. To avoid this conflict, moving elements are displayed when looking at stationary or virtual representations such as passenger displays, rear-seat entertainment systems, large rear-seat screens, windshield displays, or AR glasses—namely, the motion content 12 that corresponds to the actual vehicle movements.With AR glasses, this can be achieved by not completely obscuring the real environment, for example, through transparent displays or small image areas that ensure horizon movements remain visible as motion content 12. If a large part of the field of view is filled with virtual images according to work and / or entertainment content 11, artificial motion elements such as dots, lines, or other symbols can be displayed as motion content 12, moving in accordance with vehicle accelerations. The yaw sensors integrated into AR glasses can also be used to dynamically adjust the image to vehicle roll in curves.

[0036] Activation of such a system, or of procedure 7, can be performed either by the vehicle occupant themselves, for example via voice input or display interaction, or automatically based on certain criteria. The larger the display or screen 2 and the more a vehicle occupant focuses on its content, the higher the risk of motion sickness. Suitable activation conditions would include, for example, a certain minimum speed, strong lateral or longitudinal acceleration, or the use of certain apps such as Netflix, YouTube, or MS Teams. Deactivation occurs when navigation or vehicle settings displays are shown, a screensaver is active, or safety-critical camera perspectives such as reversing or 360-degree views are displayed. Similarly, no moving objects may be displayed if they appear in the driver's field of vision and could therefore be distracting.At higher levels of automation, driver-specific displays can also be provided, while at lower levels with driver monitoring, this is not possible. A privacy mode can ensure that moving elements are visible only to the passenger.

[0037] For the precise rendering of the artificial motion elements, sensor data from the vehicle 1, particularly acceleration values, can be used. Navigation data can also be incorporated to minimize delays between actual vehicle movement and visual representation. Information on curve radii, speeds, and planned trajectories—especially when the lane keeping assist is activated—can contribute to a more realistic and better-timed display through data fusion. The system can also be automatically activated when sections of the route are highly likely to induce motion sickness, such as winding country roads, mountain passes, or particularly dynamic driving situations. Conversely, smooth driving reduces symptoms. The intensity of the displayed points, such as their brightness, number, and / or contrast, can be adjusted based on acceleration values, map data, or individual user preferences.Vehicle 1 can remember in a profile whether a particular vehicle occupant prefers or deactivates the system.

[0038] Furthermore, the position of the motion markers can be adjusted based on the passenger's viewing direction, ensuring they always appear within the relevant field of vision – particularly important for very large displays such as swiveling rear-seat screens. An automatic detection system could identify and respond to early signs of motion sickness. If a passenger frequently or for extended periods looks away from screen 2 while watching a film and instead looks at the road, this could indicate the onset of nausea. Initially, the motion markers 12 are displayed very transparently and become gradually more pronounced as symptoms worsen. Additionally, subtle acoustic signals can be used, generating a discreet sound synchronized with the vehicle's movement, audible only to the affected passenger and enhancing their perception of the motion.A learning algorithm could continuously monitor the effectiveness of individual measures to reduce motion sickness and constantly optimize the system or procedure. The algorithm analyzes, for example, movement data, user settings, and detected symptoms to individually adjust the best display parameters for showing movement content for each user.

Claims

[1] Method (7) for operating a screen (2) in a vehicle (1), - in which work and / or entertainment content (11) independent of the vehicle (1) is displayed on a display area (3) of the screen (2), which can be viewed by a vehicle occupant who is not engaged in driving the vehicle (1), - in which motion parameters of the vehicle (1) are permanently recorded by means of a sensor system (4), which can also be detected by a sense of balance of the vehicle occupant, - in which motion content (12) is generated that correlates with the motion parameters, and - where, in addition to the work and / or entertainment content (11), the motion content (12) is also displayed on the display area (3). [2] Method (7) according to claim 1, characterized by , - that the motion parameters include vehicle acceleration, which is recorded with respect to sign, magnitude and direction, and - that the motion content (12) is displayed as moving content on the display surface (3), which moves with respect to the display surface (3) with a direction of motion that correlates with the sign and direction of the vehicle acceleration, and with a speed of motion that correlates with the magnitude of the vehicle acceleration. [3] Method (7) according to any one of the preceding claims, characterized by , - that the motion content (12) is generated depending on a spatial orientation of the display surface (3) to the vehicle (1). [4] Method (7) according to any one of the preceding claims, characterized by , - that the screen (2) and the sensors (4) are permanently installed in the vehicle (1), or - that the screen (2) and the sensors (4) are permanently installed in a mobile terminal (8) which is located in the vehicle (1), or - that the screen (2) is implemented in a screen glasses (17). [5] Method (7) according to any one of the preceding claims, characterized by , - that the work and / or entertainment content (11) and the movement content (12) are each displayed essentially across the entire display area (3), and - that the motion content (12) is displayed on the display area (3) in the background of the work and / or entertainment content (11), so that the motion content (12) is recognizable through the work and / or entertainment content (11). [6] Method (7) according to any one of claims 1 to 4, characterized by , - that the motion content (12) is displayed on the display area (3) to a smaller extent than the work and / or entertainment content (11), and - that the motion content (12) is displayed on the display area (3) at the edge of the work and / or entertainment content (11) and / or within the work and / or entertainment content (11). [7] Method (7) according to claim 6, characterized by , - that the motion content (12) is displayed on the display surface (3) in several spaced-apart sub-areas (13), and - that the work and / or entertainment content (11) is presented on the display area (3) in a continuous piece. [8] Vehicle (1), - with at least one screen (2) which has a display area (3), - with a sensor system (4) for detecting motion parameters that can also be detected by the sense of balance of a vehicle occupant who is in the vehicle (1), - to execute the method (7) according to one of claims 1 to 7 using a screen control (5) that is coupled and configured with the respective screen (2) and with the sensor (5). [9] Mobile device (8), - with a screen (2) which has a display area (3), - with a sensor system (4) for detecting motion parameters that can also be detected by the sense of balance of a vehicle occupant who is in a vehicle (1), - to perform the method (7) according to one of claims 1 to 7 using a screen control (5) that is coupled and configured with the screen (2) and with the sensor (4). [10] Non-volatile, machine-readable medium (9) containing instructions which, when executed by a data processing device (6), execute the method (7) according to any one of claims 1 to 7.

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