EP3366180B1 - Service device for a domestic appliance - Google Patents

Description

field of technology

The invention initially relates to a service device for a household appliance, in particular for a cleaning robot, which is designed to carry out a mechanical service task on the household appliance.

In addition, the invention relates to a non-automatically movable base station and a system comprising at least one household appliance with a receptacle for reversibly receiving a functional module, and at least one service facility and/or a base station having a service facility.

Furthermore, the invention also relates to a method for transferring a functional module enabling a working operation of a household appliance to a household appliance and for connecting the functional module to the household appliance.

State of the art

Service facilities for household appliances, which are designed to carry out a mechanical service task on the household appliance, are known in the prior art.

The household appliance receiving the service can be a cleaning robot, for example, which is used to clean a floor, in particular in the household sector. The cleaning robot has, for example, an electrically operated motor/fan unit and/or an electric motor powered brush and/or brush roller or the like. Power is supplied, for example, via an accumulator that is present in the cleaning robot and is accordingly carried along by it.

To charge the accumulator or to receive other services, the cleaning robot usually moves to a service facility designed as a stationary base station. It is also known that the cleaning robot finds the base station automatically, for example by means of data communication via radio and/or light signal transmission between the base station and the cleaning robot. It is also known that a cleaning robot moves to a stationary base station, for example, in order to pick up cleaning tools and/or cleaning agents, such as cleaning liquid, that are provided there. The document discloses a cleaning robot with such a base station, for example DE 10 2010 017 211 A1 . A service facility according to the preamble of claim 1 is in EP-A-2407074 disclosed.

Summary of the Invention

Although the aforementioned base stations have basically proven themselves for carrying out a service task on household appliances, the object of the invention is to further increase the convenience for a user, particularly with regard to household appliances that are networked with one another.

In order to achieve the aforementioned object, the invention firstly proposes that the service device can be moved automatically and has a navigation device which enables the service device (1) to move around independently within an environment, to localize itself and to plan a travel route.

In contrast to the prior art, the service device according to the invention is therefore not a stationary base station, ie not one that can be moved automatically, but rather an automatically moving service device that can be used for the household appliance that requires service can move. The domestic appliance can remain at its location and wait for the self-moving service facility to arrive. This is particularly useful where the household appliance cannot move itself, for example when the battery of the household appliance is empty, the household appliance has lost its way in a room, the household appliance is a stationary appliance, or the like.

The type of service facility is not limited in principle. Rather, the service device can be a robot, for example, which essentially only serves to clean a filter chamber of the household appliance and provides a suction material chamber for receiving suction material and/or a blower for sucking out or blowing out. In addition, the service facility itself can also be a household appliance, which can move to another household appliance in order to have a supporting effect on it, for example to replace an accumulator, to clean a filter chamber and the like. Finally, the service facility can also be part of an otherwise stationary base station, which is to be regarded as an automatically moving part of the base station that can move towards a household appliance.

In particular, it is proposed that the service device has at least one replaceable functional module that enables the household appliance to be operated, for transfer to the household appliance and for connection to the household appliance. In this sense, the service device is designed in the manner of a storage device that can be moved forward automatically, within which one or more functional modules are stored. The service facility can move to a household appliance that requires a function module and hand over the respective function module there. The service facility can actively insert the function module into the Carry in the household appliance and mount it in or on the household appliance or the like. Alternatively, the handover to the household appliance can also be purely passive, such that the functional module is only released for handover, for example a corresponding area of the service facility is made accessible for the household appliance, so that the household appliance can automatically take over the functional module from the service facility, for example by means of a gripper arm or the like. In this way, functional modules can be exchanged particularly easily and independently of location within an environment. Due to the automatic movement of the service device, it can in particular also pick up function modules from different storage locations, for example from base stations, other service devices, other household appliances and the like, and bring them to a particularly stationary household appliance. The service device is preferably used to equip a modular household appliance, which can have different function modules for special tasks on a platform that is always the same.

It is proposed that the service device has a transfer device which is set up to transfer function modules to the household appliance and/or to connect them to the household appliance. According to one embodiment, this transfer device can be a mechanical transfer device, for example by means of a movable gripping arm

introduces a function module into the household appliance and connects it there with the household appliance, ie mounted. Alternatively, however, the transfer device can also only allow the functional module to be transferred to the household appliance, in the sense that, for example, a partial area of the housing storing the functional modules is opened and a gripping arm of the Household appliance taking the desired function module is enabled. Furthermore, the transfer device can be a memory area for function modules within the service device, from which the household appliance can operate automatically.

Furthermore, it is proposed that the functional module is an accumulator, a tank, a wheel, a cleaning element, an air humidifier, a joint scraper, a pollen filter, a polishing element and/or a lawn mowing device. The functional modules can be designed, for example, as a care cassette or polishing cassette. The function module can bring about an automatic introduction of polishing agent, spraying, dripping and/or some other application onto a roller. The function module can have pads, a polishing roller, polishing disk, polishing brush, cloth brush, etc., and store different tools for coarse and fine polishing. The axes of movement of the function modules can allow a transverse or longitudinal rotation, an eccentric rotation, a linear movement, etc. Furthermore, exchangeable cassettes with consumables and/or different cleaning agents for different floors are conceivable. In addition to the polishing function, sealing, coloring, soaping, lathering, and vacuuming are also conceivable. Furthermore, functional modules in the form of lawn mowing cassettes or lawn fertilizer cassettes are also conceivable. The functional module can be a removable cassette with a mowing device, in particular a blade, a thread or wire. The function module can also carry out mulching, with a fan of the function module being able to apply lawn evenly to a surface. A collecting basket with suction can be provided. Furthermore, a detection device can be provided, which detects thin patches of lawn and sows them again, fertilization of the lawn can be provided, scarifying, fertilizing of flower beds and more. Likewise, the functional module can also be a terrace module, which is used outside of an apartment or house becomes. For example, the decking module can treat grout on a deck, remove moss, remove sod, remove dandelions, and the like. A high-pressure water jet device can be used for removal, whereby the jet can be fanned out to different extents in order to clean either joints or larger areas. The decking module may include a tank for a chemical, a burner for burning off weeds, a path brush, side brush, a collector for storing leaves, weeds, and the like. Furthermore, a sensor system can also be implemented which recognizes animals on the terrace and/or uneven floor surfaces and the like. In addition, functional modules within the meaning of the invention can also be air humidifiers or pollen filters. The function module can have a humidity sensor and a fresh water tank with an evaporation unit. Since the service facility can thus provide a large number of different function modules for the household appliance, it is possible for the household appliance itself to have only a driving/navigation unit, a power supply unit and a receptacle into which different function modules can be inserted.

Furthermore, it is proposed that the service device has a communication device which is set up to receive and/or send an information signal about a stock of function modules. The communication device can be, for example, a radio module, an optical transmission module or the like, which can transmit information to household appliances, other service facilities or base stations. The information signal contains information about what type of function modules and how many function modules are stored within the service facility. Furthermore, the service device can also use the communication device to receive such information signals from other service devices, household appliances and/or base stations receive. If a specific filling level is also connected to a respective function module at the same time, the filling level can also be transmitted. This can be, for example, a water level in a tank, a charge status of an accumulator or the like. The information signal sent by the service facility or the information signal received by the service facility can also be communicated by radio, in particular WLAN or Bluetooth, infrared, magnetic code and more via a mobile device of the user. The mobile device can be a mobile phone, a tablet computer or the like, for example. The service facility can thus be networked with other devices such as service facilities, household appliances, base stations, PCs, mobile phones, in particular within a household network system. This enables a particularly flexible warehousing and provision of functional modules within different devices and/or at different storage locations. The devices can communicate flexibly with each other in order to solve a service task in the best possible way. The provision of required function modules to a household appliance is therefore particularly easy and quick. This results in maximum convenience for a user of the household appliance, since the user does not have to do anything himself, for example to look for, procure, remove or install functional modules.

Furthermore, it is proposed that the service facility has a data memory in which a map of the surroundings is stored, which contains position information and/or inventory information about service facilities and/or function modules and/or household appliances. The service facility thus has a map of the area in which, for example, the current locations of mobile service facilities and/or household appliances are stored, or also the fixed locations of devices that cannot be moved automatically, such as base stations and/or stationary household appliances. Unless a functional module in a specific Service facility or base station is available, the user can, for example, transmit the position in question manually to the service facility, for example using his mobile phone. Alternatively, the service facility can locate the respective functional module, for example by radio, color code, optical code and/or magnetic code. The map of the surroundings advantageously contains a large amount of information about service facilities, household appliances, base stations and/or functional modules in a household. On the one hand, this information contains position information about the positions of the service facilities, household appliances, base stations, other storage locations and/or function modules, and on the other hand inventory information, which indicates how many function modules of the respective type are present there.

In addition to the previously proposed service device, the invention also proposes a non-automatically movable base station which has an automatically movable service device within the meaning of the invention. The base station, which cannot be moved on its own, thus has a mobile sub-area which is designed as a service facility which can be moved on its own. For example, the housing of the base station can accommodate the automatically moveable service device and release it as required in order to have it transmit a function module to a household appliance. In particular, the base station can also be designed in such a way that it has a shape-corresponding connection area for the service device, so that the service device can be connected to the base station in such a way that function modules can be transported back and forth between the service device and another subarea of the base station . If the service device is not required for a service activity, it can rest in the connection area of the base station and wait for the next use. In this case, for example, an accumulator of the service facility can be charged.

Furthermore, it is proposed that the base station has a communication device which is set up to receive and/or send an information signal about a stock of functional modules. This communication device can either communicate an inventory of a mobile service device of the base station, or an inventory of a stationary sub-area of the base station. Like the communications facility of the service facility itself, the communications facility of the base station can communicate by radio, optical signal transmission, magnetic code or the like. Likewise, the features mentioned above in relation to the communication device of the service device also apply correspondingly to the communication device of the base station.

Furthermore, a system comprising at least one household appliance with a receptacle for reversibly receiving a function module and at least one service facility and/or a base station having a service facility is proposed, with the service facility or base station being designed as described above. By combining it with a service facility and/or base station, the household appliance can be optimally supplied with one or more different function modules or supported in some other way, for example by taking suction material from a filter chamber of the household appliance, charging a battery using the self-propelled service facility and the like.

Finally, the invention also proposes a method for transferring a functional module enabling a working operation of a household appliance to a household appliance and for connecting the functional module to the household appliance, with an automatically movable, a service device having a function module is moved to a household appliance requiring the function module and the function module is transferred to the household appliance. The features of the method according to the invention result analogously from the preceding description of the service facility, the base station and/or the system made up of household appliance and service facility or base station.

Furthermore, the method can provide that the household appliance transmits a request signal regarding a required functional module to at least one service facility and/or at least one base station having a service facility, wherein a stock of functional modules in a service facility and/or a base station is compared with the required functional module. The domestic appliance thus communicates with at least one service facility and/or a base station in order to obtain a required function module. For this purpose, the domestic appliance transmits a request signal to service facilities and/or base stations by means of a communication device. The request signal can be broadcast in the manner of a radio signal, which is directed to recipients who are not specified in detail, or in the manner of a targeted message to specific, known service facilities and/or base stations. The request signal can be transmitted by radio, optical code, magnetic code, color code or the like. If a service facility and/or base station located in the vicinity of the household appliance is designed to receive a corresponding request signal of this type, the request from the household appliance can be processed further. In response to the request signal, the service facility and/or base station can then compare a stock of function modules with the required function module and, if they match, send a confirmation signal to the household appliance, for example, drive directly to the household appliance with the desired function module or, after a confirmation signal, send an explicit one Wait for the request signal from the household appliance, which contains a specific request to deliver the function module to the household appliance. For example, the household appliance can choose between different service facilities and/or base stations, each of which has the desired functional module. The household appliance can make a selection based on various criteria, for example distance, possibility of installation by the service facility and/or base station and/or the like. Furthermore, it is also possible for a service facility and/or base station receiving the request signal from the household appliance to communicate with one or more other service facilities and/or base stations and/or also with a higher-level server which is connected to the service facilities, base stations and/or household appliances is, so that a respective service facility and / or base station for the provision and delivery of the function module is selected according to a predetermined selection scheme. The selection criteria can also be criteria such as distance, inventory, state of charge of an accumulator in the service facility, installation options and the like.

Brief description of the drawings

Fig. 1

ein System aus einem Haushaltsgerät, einer Basisstation und einer selbsttätig fortbewegbaren Serviceeinrichtung,

Fig. 2

einen Längsschnitt durch die Basisstation mit daran angeschlossenem Haushaltsgerät und daran angeschlossener Serviceeinrichtung,

Fig. 3

die Serviceeinrichtung in einer Unteransicht,

Fig. 4

ein Grundriss einer Wohnung mit einer Vielzahl von Serviceeinrichtungen und Basisstationen,

Fig. 5

eine Detailansicht des Grundrisses aus Figur 4 mit einem System aus einem Haushaltsgerät und einer Serviceeinrichtung,

Fig. 6

ein anderer Teilbereich des Grundrisses aus Figur 4 mit zwei Serviceeinrichtungen,

Fig. 7

das System gemäß Figur 2 während einer Übergabe eines Funktionsmoduls von der Serviceeinrichtung an das Haushaltsgerät,

Fig. 8

die Übernahme des Funktionsmoduls zu einem gegenüber Figur 7 späteren Zeitpunkt,

Fig. 9

das System gemäß den Figuren 2, 7 und 8 zu einem Zeitpunkt, an welchem sich das Haushaltsgerät von der Serviceeinrichtung wegbewegt.

The invention is explained in more detail below using exemplary embodiments. Show it:

1

a system consisting of a household appliance, a base station and an automatically mobile service facility,

2

a longitudinal section through the base station with the household appliance connected to it and the service facility connected to it,

3

the service facility in a bottom view,

4

a floor plan of an apartment with a variety of service facilities and base stations,

figure 5

a detailed view of the floor plan figure 4 with a system consisting of a household appliance and a service facility,

6

another part of the floor plan figure 4 with two service facilities,

7

the system according to figure 2 during a transfer of a function module from the service facility to the household appliance,

8

the takeover of the function module at a later point in time compared to FIG. 7,

9

the system according to figures 2 , 7 and 8th at a time when the home appliance moves away from the service facility.

Description of the embodiments

figure 1 1 shows a service facility 1, a base station 2 and a household appliance 3. The household appliance 3 is here an automatically moving cleaning robot, which can move over an area to be cleaned with the aid of wheels 12. Furthermore, the household appliance 3 has a brush 13, which is designed here as a roller, and a receptacle 10 for receiving a function module 4 (in figure 1 not shown). That Household appliance 3 also has a communication device 23, which is a WLAN module here, for example.

The household appliance 3 can be connected to the base station 2, specifically via a connection area 15 formed on the base station 2, into which the household appliance 3 can move in a substantially corresponding shape. In order to reach the connection area 15, a ramp 14 is formed on the base station 2, which the household appliance 3 can drive up. The base station 2 also has a communication device 21, which is a WLAN module here, for example. Furthermore, the base station 2 has a second connection area 16 which serves to accommodate the service facility 1 . The connection area 16 is located below the base station 2 and is designed in the manner of a tunnel into which the service facility 1 can drive.

In contrast to the base station 2, the service facility 1 is not stationary, but can be moved on its own and can therefore move into and out of the connection area 16 of the base station 2 in an automatically controlled manner. The service facility 1 has wheels 11 for this purpose. Furthermore, the service facility 1 has a navigation facility, which enables the service facility 1 to drive around independently within an environment, to localize itself and to plan a route. The service facility 1 also has a communication device 9 for communication with, for example, the communication device 21 of the base station 2 or the communication device 23 of the household appliance 3. The service facility 1 has a transfer device 5 which has a large number of function modules 4 ready. The functional modules 4 are here, for example, a tank 6, a cleaning element 7, for example a cleaning brush, a polishing element 8 and other. The transfer device 5 can be rotated about an axis of rotation 22 so that the function modules 4 contained in the transfer device 5 can be displaced relative to the receptacle 10 of the household appliance 3 and are therefore accessible to it. To mount a function module 4 within the household appliance 3, the function module 4 is inserted into the receptacle 10. For this purpose, the service facility 1 first moves into the connection area 16 of the base station 2 so that a portion of the transfer facility 5 of the service facility 1 is arranged under the household appliance 3 also present in the base station 2 . The transfer device 5 is then rotated about the axis of rotation 22 until the desired functional module 4 is located under the receptacle 10 of the household appliance 3 .

figure 2 shows a longitudinal section of the base station 2 with the household appliance 3 accommodated in the connection area 15 and with the service device 1 accommodated in the connection area 16. As can be seen, a part of the household appliance 3 is in this state, namely here, among other things, the holder 10 above the transfer device 5 of the service facility 1 arranged. In this position, the receptacle 10 can be lowered in the direction of the transfer device 5 until the function module 4 snaps into the receptacle 10 and can be transferred to the household appliance 3 . The transfer device 5 can be rotated about the axis of rotation 22 so that the functional modules 4 arranged in the transfer device 5 can be rotated relative to the receptacle 10 until the desired functional module 4 is arranged below the receptacle 10 of the household appliance 3 .

figure 3 shows the household appliance 3 in a perspective view from below. The two wheels 12 for moving the household appliance 3, the brush 13 for cleaning a floor surface and the receptacle 10, which in the orientation shown of the household appliance 3 in vertical direction can be lowered, ie can be moved up and down to take over a function module 4 from a transfer device 5 of a service facility 1 can.

the figure 4 shows a floor plan of an apartment with a plurality of rooms 18, 19 and a terrace 20. The floor plan is stored as an area map 17 in a memory of the service facility 1, the base station 2 and the household appliance 3. The autonomously moveable service facility 1 and the autonomously moveable household appliance 3 use this for navigating through the apartment. In the area map 17 20 existing base stations 2, service facilities 1 and the household appliance 3 are located in the respective rooms 18, 19 and on the terrace.

the Figures 5 and 6 show an example of a portion of a first room 18 or a portion of a second room 19 and a terrace 20.

According to figure 5 a base station 2 , a service facility 1 and the household appliance 3 are arranged in the first room 18 . Both the household appliance 3 and the service facility 1 are located in the base station 2, specifically in the connection areas 15,16.

figure 6 1 shows on the one hand a part area of the second room 19 and on the other hand a part area of the terrace 20. On the terrace 20 there is a base station 2, in which a service facility 1 is in waiting position. Furthermore, there is also a base station 2 with a service facility 1 in the second room 19, which is also in a waiting position. The service facilities 1 each have a variety of different function modules 4, with the interposition of the base station 2 can be passed to the household appliance 3. Alternatively, a direct transfer from the service facility 1 to the household appliance 3 would also be possible, provided that the transfer facility 5 and the receptacle 10 are arranged and designed on the service facility 1 or the household appliance 3 in such a way that the receptacle 10 matches the data stored in the transfer facility 5 Function modules 4 can access.

figure 7 shows the domestic appliance 3 while a functional module 4 is being gripped from the transfer device 5 of the service facility 1. In the situation shown, one of the functional modules 4, namely here a cleaning element 7, is inserted with an end region into the receptacle 10 of the domestic appliance 3.

in the in figure 8 illustrated further course lifts the recording 10 the function module 4 from the transfer device 5 of the service facility 1 out until the function module 4 is completely removed from the service facility 1 and the household appliance 3 as a function module 4 is available.

In figure 9 is also shown how the household appliance 3 leaves the base station 2 again and carries the function module 4 with it. The functional module 4, namely the cleaning element 7 here, is now available to the household appliance 3 for a cleaning process. The household appliance 3 leaves the base station 2 via the ramp 14 and moves within the rooms 18, 19 and possibly the terrace 20 in order to carry out the cleaning task there.

The service facilities 1 and base stations 2 listed within the area map 17 are one below the other and with the household appliance 3 in a communication connection, with their communication devices 9, 21, 23 being able to exchange data with one another. These data contain information signals about inventories of the respective service facility 1 or base station 2, for example a number and type of available function modules 4. Each of the service facilities 1 and base stations 2 also has a data memory in which the map 17 of the surroundings is stored. The area map 17 contains the inventory information, as well as position information about the current positions of the service facilities 1, base stations 2 and the household appliance 3. The household appliance 3, the service facilities 1 and the base stations 2 are thus linked to one another within a home network in such a way that each of the devices always has all Position information and inventory information are available.

If the household appliance 3 wants to switch to a polishing operation, for example after a cleaning step which requires a cleaning element 7 , it is necessary for the cleaning element 7 to be exchanged for a polishing element 8 . In order to initiate an exchange process, the household appliance 3 first sends out a request signal using the communication device 23, which contains information about the functional module 4 it wants. The request signal is aimed equally at all service facilities 1 and base stations 2 in the area. The service facilities 1 and base stations 2 receive this query signal by means of their communication facilities 9, 21 and check their inventory stored in a memory on the respective functional module 4. If the respective service facility 1 or base station 2 currently has such a function module 4, this sends an information signal about the existing function module 4 and the associated position information to the household appliance 3. If several service facilities 1 and/or base stations 2 have the desired function module 4 ready, the household appliance can 3 decide automatically which service facility 1 is to deliver the functional module 4 and/or at which service facility 1 and/or base station 2 the functional module 4 is to be removed. For this purpose, the household appliance 3 can compare the position information with one another and, for example, summon the service facility 1 that has the shortest route to the household appliance 3 . For example, the household appliance 3 and a service facility 1 holding the desired function module 4 can also meet halfway at a base station 2, so that both the household appliance 3 and the service facility 1 arrive at the base station 2 at approximately the same time. Last but not least, this speeds up the entire process of exchanging the functional module 4. The service facility 1 and the household appliance 3 mutually exchange information about which base station 2 is to be approached as a meeting point.

As soon as the service facility 1 or the household appliance 3 reaches the base station 2, it moves into the connection area 16 or 15, so that the functional module 4 can be removed from the transfer facility 5 of the service facility 1 by means of the receptacle 10 of the household appliance 3.

Although this is not shown here in the figures, it is of course also possible for the service facility 1 and the household appliance 3 to be designed in such a way that the service facility 1 can transfer a function module 4 to the household appliance 3 without the involvement of a base station 2. The service facility 1 can dock directly to the household appliance 3 or, conversely, the household appliance 3 to the service facility 1 and transfer the desired functional module 4 .

As soon as the function module 4 has been handed over from the service facility 1 to the household appliance 3, the inventory levels are updated so that in turn each of the service facilities 1 and base stations 2 networked in the home network knows the current position of which function module 4 or which appliance is located .

List of References

1

service facility

2

base station

3

household appliance

4

function module

5

transfer device

6

tank

7

cleaning element

8th

polishing element

9

communication facility

10

recording

11

wheel

12

wheel

13

brush

14

ramp

15

connection area

16

connection area

17

environment map

18

Space

19

Space

20

terrace

21

communication facility

22

axis of rotation

23

communication facility

Claims (11)

1. Service device (1) for a household appliance (3), in particular for a cleaning robot, which is designed to carry out a mechanical service task on the household appliance (3), characterized in that the service device (1) can be moved automatically and has a navigation device which enables the service device (1) to move around automatically within an environment, to locate itself and to plan a travel path.
2. Service device (1) according to claim 1, characterized in that the service device (1) has at least one exchangeable function module (4), which enables a working operation of the household appliance (3), for transfer to the household appliance (3) and for connection to the household appliance (3).
3. Service device (1) according to claim 1 or 2, characterized by a transfer device (5) which is set up to transfer function modules (4) to the household appliance (3) and/or to connect them to the household appliance (3).
4. Service device (1) according to claim 2 or 3, characterized in that the function module (4) is an accumulator, a tank (6), a wheel (12), a cleaning element (7), an air humidifier, a joint scraper, a pole filter, a polishing element (8) and/or a lawn mowing device.
5. Service device (1) according to one of the preceding claims, characterized by a communication device (9) which is arranged to receive and/or transmit an information signal about a stock of function modules (4).
6. Service device (1) according to one of the preceding claims, characterized by a data memory in which an environment map (17) is stored which contains position information and/or stock status information about service devices (1) and/or function modules (4) and/or household appliances (2).
7. Non-automatically movable base station (2) with an automatically movable service device (1) according to one of the preceding claims.
8. Base station (2) according to claim 7, characterized by a communication device (21) which is arranged to receive and/or transmit an information signal about a stock of function modules (4).
9. System comprising at least one household appliance (3) with a receptacle (10) for reversibly accommodating a function module (4), and at least one service device (1) according to one of claims 1 to 6 and/or a base station (2) comprising a service device (1) according to claim 7 or 8.
10. Method for transferring a function module (4), which enables a household appliance (3) to operate, to a household appliance (3) and for connecting the function module (4) to the household appliance (3), characterized in that an automatically movable service device (1) which has a function module (4) moves towards a household appliance (3) which requires the function module (4) and transfers the function module (4) to the household appliance (3).
11. Method according to claim 10, characterized in that the household appliance (3) transmits a request signal relating to a required function module (4) to at least one service device (1) and/or at least one base station (2) having a service device (1), wherein a stock of function modules (4) of a service device (1) and/or of a base station (2) is compared with the required function module (4).

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