EP3366180A1 - Service device for a domestic appliance - Google Patents

Abstract

The invention relates to a service device (1) for a household appliance (3), in particular for a cleaning robot, which is designed to perform a mechanical service task on the household appliance (3). In order to advantageously develop such a service device (1), it is proposed that the service device (1) can be moved independently. In addition, a not automatically wegbewegbare base station (2) with a self-propelled service facility (1), a system of at least one household appliance (3) and at least one service device (1) are proposed, and a method for transferring a a working operation of a household appliance (3) enabling functional module (4) to a household appliance (3) and to connect the functional module (4) with the household appliance (3).

Description

Field of engineering

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

In addition, the invention relates to a not automatically wegbewegbare base station and a system of at least one household appliance with a receptacle for reversibly receiving a functional module, and at least one service device and / or a service unit having base station.

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

State of the art

Domestic appliance service devices that are configured to perform a mechanical service task on the domestic appliance are known in the art.

The household appliance receiving the service may, for example, be a cleaning robot which serves to clean a floor, in particular in the household area. The cleaning robot has, for example, an electrically operated motor / fan unit and / or an electric motor driven brush and / or bristle roller or the like. The power supply takes place, for example, via an accumulator present in the cleaning robot and accordingly carried along by it.

For charging the accumulator or for receiving other services, the cleaning robot usually moves towards a service station designed as a stationary base station. It is furthermore known that the cleaning robot automatically finds the base station, for example by means of data communication via a radio and / or light signal guidance between the base station and the cleaning robot. It is likewise known that a cleaning robot moves, for example, to a stationary base station in order to receive cleaning tools and / or cleaning agents stored there, such as, for example, cleaning fluid. For example, the publication discloses a cleaning robot with such a base station DE 10 2010 017 211 A1 ,

Summary of the invention

Although the aforementioned base stations have basically proven themselves for carrying out a service task on household appliances, it is an object of the invention to further increase the comfort for a user, in particular with regard to interconnected household appliances.

To solve the above object, the invention initially proposes that the service device can be moved independently.

In contrast to the prior art, the service device according to the invention is thus not a stationary, ie not automatically wegbewegbare, base station, but rather a self-propelled moving service unit, which is required for the service home appliance can move. The home appliance may remain at its location and await the arrival of the self-propelled service facility. This is particularly suitable where the household appliance can not move itself, for example, when the accumulator of the household appliance is empty, the household appliance has moved in a room situation, the household appliance is a stationary device, or the like.

The type of service facility is basically not limited. Rather, the service device may be a robot, for example, which essentially serves only to clean a filter chamber of the domestic appliance and provides a suction chamber for receiving suction material and / or a blower for sucking out or blowing out. In addition, the service facility may itself be a household appliance, which may move to another household appliance, to support it, for example, to exchange an accumulator, to clean a filter chamber and the like. Finally, the service facility may also be a part of an otherwise stationary base station, which is to be regarded as a self-propelled sub-area of the base station, which can move to a household appliance.

In particular, it is proposed that the service device has at least one exchangeable, a working operation of the household appliance enabling functional module 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 self-propelled movable storage device, within which one or more functional modules are stored. The service device can move to a household appliance that requires a functional module and transfer the respective functional module there. In this case, the service device, the function module active in the Household appliance into transport and mount in or on the household appliance or the like. Alternatively, the transfer to the household appliance can also be purely passive, such that the functional module is only released for transfer, for example, a corresponding area of the service device is made available for the household appliance, so that the household appliance can automatically take over the function module from the service facility, for example by means of a gripping arm or the like. In this way, the replacement of functional modules can be done very easily and location-independent within an environment. Due to the automatic movement of the service device, it can in particular also accommodate functional modules from different storage locations, for example from base stations, other service facilities, other household appliances and the like, and bring them to a particularly stationary household appliance. The service device is preferably used for equipping a modular household appliance, which may have different functional modules for special tasks on a consistently same platform.

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 which, for example, by means of a movable gripping arm

introduces a functional module in the household appliance and there connects to the household appliance, ie mounted. Alternatively, however, the transfer device can also allow only a handover of the functional module to the household appliance, in the sense that, for example, a part of the housing storing the functional modules is opened and a gripping arm of the Domestic appliance, the gripping of the desired functional module is enabled. The transfer device can furthermore be a storage area for functional modules within the service facility, 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, a humidifier, a joint scraper, a pollen filter, a polishing element and / or a lawn mower. The functional modules can be designed, for example, as a care cassette or polishing cassette. The functional module may cause automatic polishing agent application, spraying, dribbling and / or other application to a roller. The functional module may have pads, a polishing roller, polishing pad, polishing brush, cloth brush, etc. and stocking different tools for coarse and fine polishing. The axes of movement of the functional modules can allow a transverse or longitudinal rotation, an eccentric rotation, a linear movement, etc. Furthermore, replacement cassettes with consumables and / or different cleaning agents for different soils are conceivable. In addition to the polishing function is also a sealing, dyeing, soaping, foaming, suction conceivable. Furthermore, functional modules in the form of lawn mowing cassettes or lawn fertilizer cassettes are also conceivable. The functional module may be a removable cassette with a mowing device, in particular a knife, a thread or wire. The function module can further perform a mulching, with a fan of the function module can evenly apply lawn on a surface. There may be provided a catcher with a suction. Furthermore, a detection device can be provided, which detects and reseeds thin lawns, fertilization of the lawn can be provided, scarifying, fertilizing flowerbeds and more. Likewise, the functional module may also be a terrace module, which is used outside of an apartment or a house becomes. For example, the patio module can treat joints on a patio, remove moss, remove turf, remove dandelions, and the like. To remove a water jet high-pressure device can be used, the beam can be fanned out different levels, on the one hand either joints or on the other hand to clean larger areas. The terrace module may include a container for a chemical, a burner for burning off weeds, a brush, side brush, a collector for storing leaves, weeds and the like. Furthermore, a sensor system can 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 may also be humidifiers or pollen filters. The functional module may include a humidity sensor and a fresh water tank with an evaporation unit. Since the service device can thus provide a multiplicity of different functional modules for the household appliance, it is possible for the household appliance itself to have only one driving / navigation unit, one power supply unit and one receptacle into which different functional 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 functional modules. The communication device may be, for example, a radio module, an optical transmission module or the like, which can transmit information to household appliances, other service facilities or even base stations. The information signal contains information about which type of functional modules and how many functional modules are stored within the service facility. Furthermore, the service device by means of the communication device such information signals from other service facilities, household appliances and / or base stations receive. If a specific fill level should also be connected to a particular function module at the same time, the fill level can also be transmitted. This may be, for example, a water level of a tank, a state of charge of a rechargeable battery or the like. The information signal sent by the service device or the information signal received by the service device can also be communicated by radio, in particular WLAN or Bluetooth, infrared, magnetic code and further via a mobile device of the user. The mobile device may be, for example, a mobile phone, a tablet computer or the like. The service facility can thus in particular be networked within a household network system with other devices such as service facilities, household appliances, base stations, PCs, mobile telephones. This enables particularly flexible storage 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 functional modules to a household appliance is thus particularly easy and fast. This results in a maximum comfort for a user of the household appliance, since the user himself does not have to be active, for example, to search for, procure, expand or assemble functional modules.

Furthermore, it is proposed that the service device has a data memory in which an environment map is stored, which contains position information and / or stock information about service facilities and / or functional modules and / or household appliances. The service device thus has an environment map, in which, for example, the current locations of mobile service facilities and / or household appliances are stored, or even the fixed locations of not automatically wegbewegbaren devices, such as base stations and / or fixed household appliances. If a functional module in a particular Service device or base station is present, the user can transmit the relevant position, for example manually to the service device, for example by means of his mobile phone. Alternatively, the service device can locate the respective functional module, for example by radio, color code, optical code and / or magnetic code. The environment map advantageously contains a large amount of information about domestic service facilities, household appliances, base stations and / or functional modules. This information includes position information on the locations of the service facilities, household appliances, base stations, other storage locations and / or function modules, as well as stock information that indicates how many function modules of the respective type are present there.

In addition to the previously proposed service facility, the invention likewise proposes a base station which can not be moved away by itself and which has an automatically moveable service facility in the sense of the invention. The not automatically wegbewegbare base station thus has a mobile section, which is designed as an automatically wegbewegbare service facility. For example, the housing of the base station can receive the self-propelled service device and release it as needed 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 facility, so that the service facility can be connected to the base station in such a way that function modules can be conveyed back and forth between the service facility 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 a next operation. In this case, for example, an accumulator of the service device 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 via a stock of functional modules. This communication device can either communicate a stock of a mobile service facility of the base station, or a stock of a fixed portion of the base station. Like the communication device of the service device itself, the communication device 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 is proposed comprising at least one household appliance with a receptacle for reversibly accommodating a functional module, and at least one service facility and / or base station having a service facility, the service facility or the base station being designed as described above. By combining with a service device and / or base station, the household appliance can be optimally supplied with one or more different functional modules or supported in other ways, for example, by the acquisition of suction material from a filter chamber of the household appliance, charging a rechargeable battery by means of himself 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 domestic appliance and for connecting the functional module to the domestic appliance, wherein an automatically movable, a service module having a function module moves to a functional module requiring domestic appliance and passes the function module to the household appliance. The features of the method according to the invention result analogously from the preceding description of the service device, the base station and / or the system of household appliance and service facility or base station.

Furthermore, the method can provide that the domestic appliance transmits a request signal relating to a required function module to at least one service device and / or at least one base station having a service device, wherein a stock of a service device and / or a base station is compared to function modules with the required function module. The household appliance thus communicates with at least one service device and / or one base station in order to obtain a required function module. For this purpose, the household 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 broadcast signal, which is directed to not specified in detail recipients, or the nature of a targeted message to certain, known service facilities and / or base stations. The transmission of the request signal can be made by radio, optical code, magnetic code, color code or the like. If a service device and / or base station located in the vicinity of the household appliance is designed to receive a corresponding such request signal, the request of the household appliance can be further processed. 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 send a confirmation signal to the household appliance, for example, go directly to the desired function module to the household appliance or after an acknowledgment signal an explicit Wait for the request signal from the home appliance, which contains a concrete 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, which each have the desired functional module. In this case, the household appliance can make a selection according to 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 device and / or base station receiving the request signal of the household appliance to communicate with one or more other service facilities and / or base stations and / or also to a higher-level server which is connected to the service facilities, base stations and / or household appliances is, so that according to a predetermined selection scheme, a respective service facility and / or base station for the provision and delivery of the functional module is selected. The selection criteria may also be criteria such as distance, inventory, state of charge of a battery of the service facility, mounting option 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.

In the following the invention will be explained in more detail by means of exemplary embodiments. Show it:

Fig. 1

a system comprising a household appliance, a base station and an automatically moveable service facility,

Fig. 2

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

Fig. 3

the service facility in a bottom view,

Fig. 4

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

Fig. 5

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

Fig. 6

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

Fig. 7

the system according to FIG. 2 during a transfer of a functional module from the service device to the household appliance,

Fig. 8

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

Fig. 9

the system according to the Figures 2 . 7 and 8th at a time when the home appliance is moving away from the service facility.

Description of the embodiments

FIG. 1 shows a service device 1, a base station 2 and a household appliance 3. The household appliance 3 is here a self-propelled cleaning robot, which can move with the help of wheels 12 on a surface to be cleaned. Furthermore, the household appliance 3 has a brush 13, which is designed here as a roller, and a receptacle 10 for receiving a functional module 4 (in FIG FIG. 1 not shown). The Household appliance 3 furthermore has a communication device 23, which here is for example a WLAN module.

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

The service device 1 is in contrast to the base station 2 is not stationary, but automatically wegbewegbar and can thus automatically controlled in the connection area 16 of the base station 2 move in and out of this again. For this purpose, the service device 1 wheels 11. Furthermore, the service device 1 has a navigation device which enables the service device 1 to automatically move around within an environment, to locate itself and to plan a travel path. The service device 1 further 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 device 1 has a transfer device 5 which holds a plurality of function modules 4. 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 is rotatable about an axis of rotation 22, so that the function modules 4 contained in the transfer device 5 are displaceable relative to the receptacle 10 of the household appliance 3 and thus accessible to them. For mounting a functional module 4 within the household appliance 3, the functional module 4 is inserted into the receptacle 10. For this purpose, the service device 1 first moves into the connection region 16 of the base station 2, so that a subarea of the transfer device 5 of the service device 1 is arranged below the household device 3 also present in the base station 2. Then the transfer device 5 is rotated as long as the rotation axis 22 until the desired functional module 4 is below the receptacle 10 of the household appliance 3.

FIG. 2 shows a longitudinal section of the base station 2 with the recorded in the connection area 15 home appliance 3 and recorded in the connection area 16 service device 1. As can be seen, in this state, a portion of the household appliance 3, namely here, among other things, the receptacle 10 on the transfer device 5 of the service device 1 is arranged. In this position, the receptacle 10 can be lowered in the direction of the transfer device 5 until the functional module 4 engages in the receptacle 10 and can be transferred to the household appliance 3. The transfer device 5 is rotatable about the axis of rotation 22, so that the function 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 device 3.

FIG. 3 shows the household appliance 3 in a perspective view from below. Evident are the two wheels 12 for locomotion of the household appliance 3, the brush 13 for cleaning a bottom surface and the receptacle 10, which in the orientation of the household appliance 3 shown in FIG vertical direction can be lowered, that is, can be moved up and down in order to take over a function module 4 from a transfer device 5 a service device 1 can.

The FIG. 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 each case a memory of the service device 1, the base station 2 and the household appliance 3. The autonomously movable service device 1 and the autonomously movable household appliance 3 use this for a navigation through the apartment. In the area map 17 existing base stations 2, service facilities 1 and the household appliance 3 are located in the respective rooms 18,19 and 20 on the terrace.

The FIGS. 5 and 6 show by way of example a partial area of a first room 18 or a partial area of a second room 19 and a terrace 20.

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

FIG. 6 shows on the one hand a portion of the second space 19, and on the other hand, a portion of the terrace 20. On the terrace 20 is a base station 2, in which a service facility 1 is in waiting position. Furthermore, a base station 2 with a service device 1 is also present in the second space 19, which is also in a waiting position. The service facilities 1 each have a multiplicity of different functional modules 4, which are interposed by the base station 2 can be transferred to the household appliance 3. Alternatively, a direct transfer from the service device 1 to the household appliance 3 would be possible if the transfer device 5 and the receptacle 10 are arranged and configured on the service device 1 or the household appliance 3 such that the receptacle 10 is stored in the transfer device 5 Function modules 4 can access.

FIG. 7 shows the household appliance 3 while gripping a functional module 4 from the transfer device 5 of the service device 1. In the illustrated situation, one of the functional modules 4, namely here a cleaning element 7 is introduced with an end portion in the receptacle 10 of the household appliance 3.

In the in FIG. 8 illustrated further course, the receptacle 10 lifts the function module 4 from the transfer device 5 of the service device 1 out until the function module 4 is completely removed from the service device 1 and the home appliance 3 is available as a function module 4.

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

The recorded within the area map 17 service facilities 1 and base stations 2 are among themselves and with the household appliance 3 in communication connection, wherein concretely their communication devices 9, 21, 23 can exchange data with each other. This data includes information signals about stocks of the respective service device 1 or base station 2, for example a number and type of available function modules 4. Each of the service devices 1 and base stations 2 further has a data memory in which the environment map 17 is stored. The environment map 17 includes the inventory information, as well as position information on 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 together within a home network such that always each of the devices all Position information and stock information are available.

If the household appliance 3, for example, after a cleaning step, which requires a cleaning element 7, would like to change to a polishing operation, it is necessary that the cleaning element 7 is exchanged for a polishing element 8. To initiate a swap operation, the household appliance 3 first sends out a request signal by means of the communication device 23, which contains information about the function module 4 that it desires. The request signal is equally directed to all present in the environment service facilities 1 and base stations 2. The service facilities 1 and base stations 2 receive this request signal by means of their communication devices 9, 21 and check their stored in a memory inventory at the respective functional module 4. If the respective service facility 1 or base station 2 currently has such a functional module 4, this sends an information signal on 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, the desired function module 4 ready, the home appliance 3 automatically decide which service device 1 should deliver the function module 4 and / or at which service device 1 and / or base station 2 the function module 4 should be removed. For this purpose, the household appliance 3 can compare the position information with each other and cause, for example, that service facility 1 which has the shortest route to the household appliance 3. In this case, for example, the household appliance 3 and a service module 1 providing the desired functional module 4 can meet half way 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. Not least, this accelerates the entire process of replacing the functional module 4. The service device 1 and the household appliance 3 exchange information about which base station 2 is to be approached as a meeting point.

As soon as the service device 1 or the household appliance 3 reaches the base station 2, this or this moves into the connection area 16 or 15, so that the functional module 4 can be removed from the transfer device 5 of the service device 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 that the service device 1 and the household appliance 3 are designed so that the service device 1 can pass a function module 4 without the involvement of a base station 2 to the household appliance 3. In this case, the service device 1 dock directly to the household appliance 3, or conversely, the household appliance 3 to the service device 1, and the desired function module 4 pass.

As soon as the functional module 4 has been transferred from the service device 1 to the household appliance 3, the inventories are updated, so that in turn each of the networked service facilities 1 and base stations 2 knows at which position currently which functional module 4 or which device is located ,

List of reference numbers

1

service facility

2

base station

3

household appliance

4

function module

5

Transfer device

6

tank

7

cleaning element

8th

polishing

9

communicator

10

admission

11

wheel

12

wheel

13

brush

14

ramp

15

connecting area

16

connecting area

17

map

18

room

19

room

20

terrace

21

communicator

22

axis of rotation

23

communicator

Claims (11)

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 independently. Service device (1) according to claim 1, characterized in that the service device (1) at least one replaceable, a working mode of the household appliance (3) allows forming function module (4) for transfer to the household appliance (3) and for connection to the domestic appliance (3) having. 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). Service device (1) according to one of the preceding claims, characterized in that the functional module (4) an accumulator, a tank (6), a wheel (12), a cleaning element (7), a humidifier, a Fugenkratzer, a pollen filter, a Polishing element (8) and / or a lawn mower is. Service device (1) according to one of the preceding claims, characterized by a communication device (9) which is set up to receive and / or send an information signal via a stock of function modules (4). Service device (1) according to one of the preceding claims, characterized by a data memory in which an environment map (17) is stored, the position information and / or stock information about service facilities (1) and / or function modules (4) and / or household appliances (2) contains. Non-automatically movable base station (2) with an automatically moveable service device (1) according to one of the preceding claims. Base station (2) according to Claim 7, characterized by a communication device (21) which is set up to receive and / or transmit an information signal via a stock of function modules (4). System comprising at least one household appliance (3) with a receptacle (10) for reversibly receiving a functional module (4), and at least one service device (1) according to one of claims 1 to 6 and / or a base station (2) having a service device (1) ) according to claim 7 or 8. Method for transferring a functional module (4) enabling a working operation of a domestic appliance (3) to a domestic appliance (3) and for connecting the functional module (4) to the domestic appliance (3), characterized in that an automatically movable, functional module (4 ) having service unit (1) to a functional module (4) requiring home appliance (3) moves and the function module (4) to the household appliance (3) passes. A method according to claim 10, characterized in that the domestic appliance (3) transmits a request signal with respect to a necessary function module (4) to at least one service device (1) and / or at least one a service device (1) having base station (2), wherein a stock a service device (1) and / or a base station (2) is compared to function modules (4) with the required function module (4).

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