HOUSEHOLD APPLIANCE SYSTEM OF ONE ROOM

Description

[0001] The invention relates to a household appliance system for a room.

[0002] Household appliances such as washing machines, dryers, washer-dryers, wet / dry vacuums, and vacuum cleaners have long been used to perform or assist with household tasks like washing, drying, and cleaning (e.g., mopping or vacuuming). This also applies to kitchen appliances, which are also considered household appliances. For example, a user can be assisted in preparing food by a hand mixer, a hand blender, a kettle, and especially by cooking appliances such as an oven, a steamer, a combination oven / steamer, a microwave, and similar appliances. Other kitchen appliances include, for example, extractor hoods, dishwashers, refrigerators, freezers, and chest freezers.

[0003] Some household appliances, such as vacuum cleaners and hand mixers, are guided and moved by the user during operation and are therefore considered portable. Others, or rather most household appliances, such as washing machines, clothes dryers, ovens, steam cookers, refrigerators, and the like, are placed and used in a specific location in the home, such as the kitchen or pantry, due to their intended use, as well as their size and weight, and are therefore considered stationary.

[0004] Such stationary household appliances typically share the common feature of an outer casing, which essentially encloses the appliance and protects its individual components and elements, while also making them easily accessible. Inside the appliance, an interior space is formed, representing the operating chamber, and is essentially enclosed by an inner casing. Between the inner and outer casings, a cavity is created in which functional elements of the appliance, such as a control unit, an electrical power supply, and other components essential for the appliance's intended use, may be located. From the front, i.e., viewed from the user's perspective, the outer casing...A cover in the form of furniture material or in the form of a control panel and the like, together with the inner housing, closes off the housing space, so that the housing space is not accessible to the user.

[0005] The interior of the appliance features a front-facing access opening through which the user can enter and arrange items such as laundry to be washed or dried, food to be cooked or chilled, or similar items. After processing, these items can be removed from the appliance. The access opening can be opened by the user using a locking mechanism, such as a side-hinged door or a downward-hinged flap, to access the interior as described above, or to close the interior and carry out the processing.Such a closure element can be designed to be closed or to have a viewing window, for example to allow the user to see into the closed interior of a washing machine or an oven.

[0006] It is now common practice in households to use so-called voice assistants to control and operate household appliances, among other things. A person, acting as the user, can give instructions that the voice assistant recognizes, understands, and executes. Voice assistants are software programs that run on a hardware platform, such as a control unit. Currently well-known voice assistants include Google Assistant, Siri, Alexa, and Cortana.

[0007] Voice assistants can be used with separate devices, also known as smart speakers, such as Amazon Echo, Google Home, and the Apple HomePod. A smart speaker typically has both a microphone for capturing voice commands and a speaker for outputting spoken information. The combination of a voice assistant and a smart speaker can be called a voice assistant system. A smartphone with voice assistant software can also constitute a voice assistant system. If a household appliance is to be controlled in this way, the user can transmit their commands to the voice assistant system verbally. The voice assistant system can then forward the recognized commands to the household appliance via Wi-Fi or similar technologies.

[0008] However, voice assistants can also be used directly by household appliances and operated via their control unit. In this case, the household appliance itself has at least one microphone for capturing spoken instructions from people and preferably also a speaker for outputting spoken information.

[0009] In any case, it is standard practice for the user to consciously activate the voice assistant or voice assistant function in order to distinguish the subsequent speech input to the voice assistant from the rest of the user's conversation. This is currently usually done via a wake word recorded by a smart speaker, smartphone, or household appliance.

[0010] The disadvantage here is that the wake word is universally valid and can therefore be used by any person, including people other than the user of the household appliance who currently wants to carry out a treatment process.

[0011] Another disadvantage is that activating the voice assistant usually requires the user to utter a relatively long voice command, which is not intuitive and has a specific syntax. This makes it inconvenient for the user. The user also has to think carefully about what to say.

[0012] It is also known to activate a voice assistant function using image recognition of a user, thus eliminating the need for the user to speak a wake word. A distinction can be made here between simply recognizing a person and using this as the trigger to activate the voice assistant, or identifying a specific individual user from the captured image data and differentiating them from other users.

[0013] A disadvantage in any case is that capturing images using a camera or similar device, as well as processing the captured image data using image recognition, incurs additional and considerable effort. Furthermore, image capture must be continuous, meaning it must be constantly active and running in order to recognize the user at all times and react accordingly.

[0014] The quality and results of image recognition, particularly for identifying a specific person, depend on the surrounding conditions, especially visibility and lighting, as well as the quality of the image capture. Higher image capture and camera quality also lead to higher costs. Furthermore, the application of image capture and recognition is limited to areas where image capture is even possible, such as directly in front of the appliance. Additionally, the image capture system may also detect and identify people within the image capture area who are irrelevant or who do not wish to be captured or identified.

[0015] It is now well-established that tagging, i.e., marking, a user via an existing smart device such as a smartphone, smartwatch, or other smart wearable is highly effective for user identification and localization, provided the wireless standard used is suitable for precise location and distance determination. Localization communication typically requires a suitable wireless module in the device to determine the user's location, enabling user-specific and location-dependent use cases and / or device responses.

[0016] User identification using ultra-wideband (UWB) communication technology is known. This technology allows for the transmission of a secure user ID (identification) via a communication protocol, as well as distance measurement accurate to 10 cm and direction determination accurate to 3° of a received signal transmitted between two UWB devices. This assumes communication between a UWB radio module in the household appliance and a smart device with UWB radio technology worn on the user's body. Such a system is known from WO 2023 / 131392 A1.

[0017] Thus, the detection and localization of a user using a smart device with UWB radio technology, via a UWB radio module in the household appliance, is known, which can trigger a user and location-dependent function of the household appliance.

[0018] However, a disadvantage of this approach is that every household appliance that needs to detect the presence, approach, or proximity of a user requires a UWB radio module to perform a function based on predefined or learned characteristics. This can be costly for certain appliance categories. Furthermore, the appliance must be current and equipped with such a UWB radio module. Retrofitting older appliances would be extremely difficult and costly.

[0019] The invention addresses the problem of providing assistance functions based on user identification and / or user localization even for household appliances that do not have a user identification and / or user localization function, in particular those that do not have a UWB radio module. This should be achieved as simply, cost-effectively, reliably, and / or energy-efficiently as possible.

[0020] According to the invention, this problem is solved by a household appliance system and by a method with the features of the independent claims. Advantageous embodiments and further developments of the invention are described in the dependent claims below.

[0021] Thus, the invention relates to a household appliance system of a room comprising a non-UWB-capable household appliance, a UWB-capable appliance, and a user's UWB-capable mobile device, wherein the UWB-capable appliance is configured and set up, to identify the UWB-enabled mobile device, to locate the UWB-enabled mobile device relative to itself, preferably by means of distance and angle, in space, to determine the current position of the user based on their UWB-enabled mobile device relative to the non-UWB-enabled household appliance in space and where the non-UWB-capable household appliance is trained and set up, If the user is in a predetermined proximity to the non-UWB-enabled household appliance in the room, to perform a user-specific operation.

[0022] The household appliance can be any household appliance, and in particular any kitchen appliance. Specifically, the household appliance can be a stationary appliance, and in particular a built-in appliance. For example, a stationary appliance could be a washing machine, a dryer, a refrigerator, a cooktop, an oven, a steam cooker, and the like.

[0023] The predetermined proximity can be measured such that the user can operate the non-UWB-capable household appliance or at least visually recognize a display of the non-UWB-capable household appliance.

[0024] The room is a space within a building where the non-UWB-enabled household appliance, the UWB-enabled appliance, and the user's UWB-enabled mobile device are all located simultaneously. However, the room can also be an area within a building or several adjacent rooms, provided that the features described above can be implemented across these spaces simultaneously.

[0025] In any case, the invention is based on the understanding that, by means of a UWB-capable device, which, firstly, can communicate with the non-UWB-capable household appliance at least unilaterally wirelessly or wired and preferably bilaterally, in a manner other than by means of UWB communication as a radio standard for precise location or distance determination, and secondly, can identify a user and locate them relative to the non-UWB-capable household appliance, functions which require UWB communication can nevertheless be enabled by the non-UWB-capable household appliance.

[0026] Thus, the identification and localization of a user based on their carried UWB-enabled mobile device, such as a smartphone, smartwatch, etc., relative to the non-UWB-enabled household appliance, can be taken over by the UWB-enabled device and communicated to the non-UWB-enabled household appliance via a communication technology other than UWB, so that, as a result, the same or comparable information regarding the identification and localization of the user is available at the non-UWB-enabled household appliance as if the household appliance itself were UWB-enabled.

[0027] The verification or comparison of position information to determine whether the user is sufficiently close to a non-UWB-enabled household appliance can be performed by the UWB-enabled device. If the user is sufficiently close, the non-UWB-enabled appliance can be informed of this via a communication technology other than UWB, allowing it to react accordingly. This is considered a simpler implementation method. Alternatively, the user's current position and a known position of the non-UWB-enabled household appliance can be communicated to the appliance via a communication technology other than UWB, enabling the device to perform the corresponding position information comparison and react accordingly.

[0028] UWB communication encompasses both the UWB technology itself and any other technology or communication method that ultimately yields the same or comparable information regarding the identification and localization of the user based on their mobile device. Therefore, UWB communication includes any radio standard for precise location and distance determination.

[0029] UWB stands for Ultra Wideband and describes the use of a broadband radio signal, at least 500 MHz wide, in a frequency range from 3.1 GHz to 10.6 GHz. The generated radio signals have a time signature in the nanosecond range. This allows for high data rates and also enables time-of-flight measurements, making precise distance measurements of less than 10 cm possible between two UWB devices. Depending on the antenna design or when using multiple antennas, the direction of the radio signals can also be determined with accuracies of around 3° based on the time difference. Typical measurement methods include two-way ranging and PDoA (phase difference of the received signals).

[0030] IEEE 802.15.4z can be used as the technical basis. This is a radio protocol for UWB communication that is restricted to low spectral power. This low spectral power reduces its range. The high bandwidth (500 MHz) allows for very short pulses, which can be used for precise time-of-flight measurements.

[0031] In any case, this method allows functions requiring user identification and localization to be implemented even in household appliances that do not themselves support UWB communication but can receive this information from a UWB-enabled device via another communication channel. These functions can thus be retrofitted or made available without the need for the effort of implementing UWB communication in the appliance itself.

[0032] In any case, the operation of the non-UWB-enabled household appliance can be specifically configured for the identified user, which can increase user comfort and ease of use. This also allows for the implementation of safety features, such as completely preventing children from using the appliance or at least restricting their use to certain functions and parameters.

[0033] According to the invention, the UWB-capable device is further configured and set up to send the current position of the user relative to the non-UWB-capable household appliance in the room to the non-UWB-capable household appliance by means of non-UWB communication, and wherein the non-UWB-capable household appliance is further configured and set up to receive the current position of the user relative to itself in the room from the UWB-capable device by means of non-UWB communication.

[0034] In this case, the user's current position relative to the non-UWB-enabled appliance in the room can be determined or calculated by the UWB-enabled device, and this information can be transmitted to the non-UWB-enabled appliance via non-UWB communication. This can relieve the non-UWB-enabled appliance of this function.

[0035] According to a further aspect of the invention, user-specific operation includes user-specific function selection and / or user-specific function parameterization. This can further increase the design possibilities for individual use as well as safety functions.

[0036] According to another aspect of the invention, user-specific operation includes activating the non-UWB-capable household appliance. This can further increase the design possibilities for individual use as well as the safety functions.

[0037] According to a further aspect of the invention, the household appliance system comprises several non-UWB-capable household appliances, each designed and configured to perform a user-specific operation. This can further increase the potential uses of the household appliance system according to the invention.

[0038] According to the invention, the non-UWB-capable household appliance is designed and configured to send information about an operation performed by the user to the UWB-capable mobile device via non-UWB communication, and the UWB-capable device is designed and configured to receive information about the operation performed by the user of the non-UWB-capable household appliance from the non-UWB-capable household appliance via non-UWB communication and to assign the non-UWB-capable household appliance to the corresponding current position of the user relative to itself in space.

[0039] This allows a map of the room to be created before or during the use of the previously described functions, in order to record and save the position of the non-UWB-enabled household appliance or the user's position while operating or using the non-UWB-enabled household appliance. This can improve or facilitate the implementation of the previously described functions.

[0040] According to a further aspect of the invention, the UWB-capable device is designed and configured to create a map of the room from the user's known positions relative to themselves and, based on the user's operation of the non-UWB-capable household appliance, to assign the non-UWB-capable household appliance to the corresponding position in the room. This can enable a more concrete implementation of the functions described above.

[0041] According to a further aspect of the invention, the UWB-capable device is designed and configured to detect a change in its own position in the room from a deviation between the user's current position in the room when operating the non-UWB-capable household appliance and the assigned position of the non-UWB-capable household appliance in the room, and, in reaction to this, to assign the non-UWB-capable household appliance to the corresponding new position in the room based on the user's operation of the non-UWB-capable household appliance.

[0042] Thus, the UWB-enabled device can automatically detect that it has been moved by a person in the room, i.e., that its own position has changed. This invalidates the previously described map information, and in particular, the position of the non-UWB-enabled household appliance relative to the UWB-enabled device is no longer known. Accordingly, this information must first be reacquired, as described previously, in order to use the functions described above again.

[0043] According to another aspect of the invention, the UWB-capable device is a UWB-capable household appliance. Thus, a UWB-capable household appliance can interact or cooperate with a non-UWB-capable household appliance as described above.

[0044] According to another aspect of the invention, the UWB-enabled device is a UWB-enabled voice assistant system. Thus, a UWB-enabled voice assistant system such as "Google Assistant", "Siri", "Alexa" or "Cortana" can interact or cooperate with a non-UWB-enabled household appliance as described above.

[0045] The invention also relates to a method according to claim 9.

[0046] This provides a method for implementing and utilizing the aspects and functions described above.

[0047] In other words, according to the invention an alternative communication path can be created via which at least the command to trigger a device function can be given.

[0048] The task can therefore be solved by a method and a corresponding system in which the user carries a smart device with, for example, UWB radio technology, and at least one UWB radio module is located in a device in the room containing the household appliances to be controlled, allowing the user to be detected and located. This device will be referred to as the UWB hub in the following.

[0049] The UWB hub identifies the user based on the smart device's ID and locates them using UWB technology's "Time Difference of Arrival" and / or "Angle of Arrival" measurement methods, based on the smart device's position on the user's body. The UWB hub thus knows at all times who is nearby and the relative position between itself and the located user.

[0050] Based on the user's movements within the room over a certain period of time, the UWB hub can create a room map. The located user will linger at different points in the room for a certain amount of time and, for example, operate household appliances there if it is the kitchen.

[0051] Information can be exchanged via an alternative data communication between the UWB hub and the household appliances. This information can include the user's identity, their relative location to the UWB hub (and thus their location within the created room map), and information about the operation of a household appliance. Operation can be detected, for example, via a door contact through the opening and closing of the door or through the use of the user interface.

[0052] This information can be used to develop assistance functions that are trained on recurring user behavior and can then be offered to the user or programmed by the user themselves. The route taken immediately before operating the appliance can also be taken into account to implement user intent recognition. The information can be processed in the UWB hub, in the appliance itself, in the user's smart device, or in the cloud.

[0053] The device response required for the assistance function can be sent as a command to the appliance via the alternative communication channel if the information processing is not performed within the appliance itself. Otherwise, the collected information is sent to the appliance for processing via this alternative communication channel. Suitable alternative communication channels include Wi-Fi, Bluetooth, or Zigbee, as well as wired communication paths, for example, between the appliance and an internet router or between the UWB hub and an internet router.

[0054] The UWB hub can be a standalone, external device such as a speaker (smart speaker), a voice assistant, a smart display (e.g., Amazon's Echo Show), a communication hub or bridge or controller for smart home applications, or an integrated UWB radio module in a single household appliance.

[0055] The UWB hub should not change its position during a learning phase or while using the learned or programmed assistance functions. Otherwise, a new learning phase will be initiated to determine the positions and paths and create the spatial map.

[0056] Consider two examples of feasible assistance functions: Every morning, a user enters the kitchen, goes to the coffee machine, and selects a latte. Using the described procedure, the system recognizes the user via their UWB-enabled smartwatch. The system tracks the user's path through the kitchen to the coffee machine. When the user remains in the same position, the coffee machine is activated, and the "latte" beverage is selected. The system learns this information (user, path, appliance operation, latte, time of day) and offers the "desired beverage" use case, which is triggered based on the user's proximity to the coffee machine and the time of day. Different desired beverages are offered to other household members.

[0057] The user has configured restricted access to their oven. Certain functions, such as pyrolytic cleaning, should only be used by adults. The user specifies in the system that these functions should only be activated when certain individuals are present, based on the recognized ID of the respective smart device. Furthermore, the user configures the system to display a user-specific interface when approaching and standing near the appliance; this interface can be customized by each user.

[0058] It is also conceivable that the UWB hub could have "room sensing" capabilities, which could function using the microphone array and sound reflection. This would allow the described UWB hub to additionally determine its own position within the room, either redundantly or entirely for generating a room map. However, this additional detection could also ensure that the hub is recognized if it has been moved or repositioned within the room. In this case, all use cases would become invalid and would have to be retrained. This would also prevent use cases from being triggered erroneously. For example, a primary user in the household might position the UWB hub, and then another household member, such as a child, might move it. Detection via the UWB hub's room sensing function or via an accelerometer, which would then inform the primary user, would be beneficial.

[0059] In any case, no UWB radio modules or similar devices are necessary in each individual household appliance. This saves costs and also allows the use of existing appliances that have at least one communication channel for initiating their functions, thus ensuring a degree of backward compatibility. Furthermore, there are household appliances for which the integration of a UWB radio module or similar device might be impossible because the appliance casing does not transmit radio signals, or only very poorly. This can also significantly impact the accuracy of the localization, so localization via an external UWB hub may be more precise. An alternative communication path for transmitting the information may already exist or be easier to implement.Portable household appliances such as battery-powered handheld vacuum cleaners, robotic vacuums, or air purifiers can also complicate measurements for user localization. At least one UWB device should be stationary as a so-called anchor to ensure a fixed antenna orientation for locating and determining the direction of the UWB radio signals.

[0060] An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows Figure 1 is a perspective view of a room in the form of a kitchen from a slightly oblique top front view with a household appliance system according to the invention; and Figure 2 shows the representation of the Figure 1 from above, supplemented by a map of positions.

[0061] The figures above are viewed in Cartesian coordinates. A longitudinal axis X extends, which can also be called depth X or length X. Perpendicular to the longitudinal axis X extends a transverse axis Y, which can also be called width Y. Perpendicular to both the longitudinal axis X and the transverse axis Y extends a vertical axis Z, which can also be called height Z and corresponds to the direction of gravity. The longitudinal axis X and the transverse axis Y together form the horizontal X,Y, which can also be called the horizontal plane X,Y.

[0062] Figure 1 Figure 1 shows a perspective view of a room 0 in the form of a kitchen 0 from a diagonal top front view with a household appliance system according to the invention. Figure 2 shows the representation of Figure 1 from above, supplemented by a map of positions B and C.

[0063] The household appliance system according to the invention comprises a first non-UWB-capable household appliance 1 in the form of an oven 1, a second non-UWB-capable household appliance 2 in the form of a steam cooker 2, and (only in the Figure 2 (shown and considered) a third non-UWB-capable household appliance 3 in the form of a microwave oven 3. Furthermore, the household appliance system according to the invention comprises a UWB-capable device 4 in the form of a UWB-capable voice assistant system 4 and a UWB-capable mobile terminal 5 in the form of a UWB wearable 5 as a UWB smartwatch 5, which is worn by a person as user 6 on the left wrist.

[0064] Kitchen 0 features a cooking island 01 with a cooktop (unlabeled) in the foreground. In the background, kitchen 0 has a transverse run of cabinets 02, which includes several kitchen units 03. The UWB-enabled voice assistant system 4 is located on the cooking island 01. The oven 1 and the steam oven 2 are built-in appliances, permanently installed in the kitchen units 03. Figure 2 The microwave 3 is located either on the transverse kitchen unit 02 or on the cooking island 01, as the position of the microwave 3 is not clearly known, as will be explained in more detail below.

[0065] The oven 1 and the steam cooker 2 each have an outer casing (not specified), which can also be referred to as the outer housing and essentially encloses or surrounds the respective appliance 1, 2. The outer casing terminates along its longitudinal axis towards the front, i.e., towards the kitchen 0, at the top with a panel 10, 20. The panel 10, 20 each features a display / control element 12, 22 in the form of a screen 12, 22.

[0066] Inside the outer casing is a cooking chamber (not shown) which is accessible to the user 6 from the front along the longitudinal axis X through an access opening (not shown) located below the cover 10, 20. The access opening can be opened and closed by means of a locking element 11, 21 in the form of a flap 11, 21.

[0067] Each household appliance 1, 2 also has a non-UWB-capable communication module to enable bidirectional communication with the UWB-capable voice assistant system 4. This system is capable of communicating both via UWB with a user's UWB smartwatch 5 and via non-UWB technology with the oven 1 and the steam cooker 2, which are non-UWB-capable household appliances 1, 2. For this purpose, the UWB-capable voice assistant system 4 has a separate communication module (not shown) for each of these appliances, which can be operated or controlled by a control unit (not shown) of the UWB-capable voice assistant system 4. Likewise, each household appliance 1, 2 has a control unit (not shown) for operating the respective components and modules.

[0068] In general, UWB communication between the UWB-enabled voice assistant system 4 and the UWB-enabled mobile device 5 of user 6 can be used to identify the UWB-enabled mobile device 5 and assign it to user 6, thereby also enabling the identification of user 6. Furthermore, the UWB-enabled mobile device 5, and thus at least roughly user 6, can be located by the UWB-enabled voice assistant system 4, which allows for the determination of the orientation and distance between the UWB-enabled voice assistant system 4 and the UWB-enabled mobile device 5.

[0069] This information can be stored as the current position B of user 6 by the UWB-enabled voice assistant system 4. This can be done continuously and repeatedly, so that a map of kitchen 0 can be created with respect to the known positions C of user 6 and stored by the UWB-enabled voice assistant system 4.

[0070] In any case, the UWB-enabled voice assistant system 4 can continuously compare the current position B of the user 6 with a stored position C in the immediate or sufficient vicinity of each of the non-UWB-enabled household appliances 1, 2, 3 in order to detect if the user 6 is in sufficient proximity to one of the non-UWB-enabled household appliances 1, 2, 3, or remains there long enough to infer the user's intention to use the corresponding non-UWB-enabled household appliance 1, 2, 3. This may not be unambiguous with regard to the microwave oven 3 in Figure 3, but it may be sufficient to activate the microwave oven 3 nonetheless.

[0071] If use is desired and this is detected, the respective non-UWB-enabled household appliance 1, 2, 3 can be woken from sleep or standby mode and fully put into operation. Furthermore, the operation of the non-UWB-enabled household appliance 1, 2, 3 can be customized to the user, which can be done with regard to the displayed or accessible functions and their parameters. Thus, the non-UWB-enabled household appliances 1, 2, 3 can also be used in the same way as UWB-enabled household appliances 1, 2, 3. Reference numeral list (part of the description)

[0072] Wireless communication connection B Current user position 6 C Known user positions 6 Longitudinal axis; Depth; Length; Transverse axis; Width; Vertical axis; Height; Horizontal plane 0Room; Kitchen 01Kitchen island 02Kitchen unit 03Kitchen furniture 1 (First) non-UWB-capable household appliance; oven 10 Cover 11 Locking element; flap 12 Display / control element; screen 2 (second) non-UWB-capable household appliance; steamer 20 Cover 21 Locking element; flap 22 Display / control element; display 3 (third) non-UWB-capable household appliance; microwave oven 4UWB-enabled device; UWB-enabled voice assistant system 5UWB-enabled mobile device; UWB wearable; UWB smartwatch 6 Person; Users

Claims

1. Domestic appliance system for a space (0), comprising a non-UWB-capable domestic appliance (1; 2; 3), a UWB-capable appliance (4) and a UWB-capable mobile terminal (5) of a user (6), wherein the UWB-capable appliance (4) is designed and configured to identify the UWB-capable mobile terminal (5), to locate the UWB-capable mobile terminal (5) in the space (0) relative to itself, preferably in terms of distance and angle, and to determine the current position (B) of the user (6) in the space (0) relative to the non-UWB-capable domestic appliance (1; 2; 3) using their UWB-capable mobile terminal (5), and wherein the non-UWB-capable domestic appliance (1; 2; 3) is designed and configured to carry out a user-specific operation if the user (6) is situated in the space (0) at a predetermined proximity to the non-UWB-capable domestic appliance (1; 2; 3), wherein the UWB-capable appliance (4) is further designed and configured to send the current position (B) of the user (6) in the space (0) relative to the non-UWB-capable domestic appliance (1; 2; 3) to the non-UWB-capable domestic appliance (1; 2; 3) using non-UWB communication, and wherein the non-UWB-capable domestic appliance (1; 2; 3) is further designed and configured to obtain the current position (B) of the user (6) in the space (0) relative to itself from the UWB-capable appliance (4) using non-UWB communication, wherein the non-UWB-capable domestic appliance (1; 2; 3) is designed and configured to send confirmation that usage has been performed by the user (6) to the UWB-capable mobile terminal (5) using non-UWB communication, and the UWB-capable appliance (4) is designed and configured to obtain confirmation of the performed usage of the non-UWB-capable domestic appliance (1; 2; 3) by the user (6) from the non-UWB-capable domestic appliance (1; 2; 3) using non-UWB communication and to assign the non-UWB-capable domestic appliance (1; 2; 3) to the corresponding current position (B) of the user (6) in the space (0) relative to itself.

2. Domestic appliance system according to claim 1, wherein the user-specific operation comprises a user-specific function selection and / or a user-specific function parameterisation.

3. Domestic appliance system according to either of the preceding claims, wherein the user-specific operation comprises activating the non-UWB-capable domestic appliance (1; 2; 3).

4. Domestic appliance system according to any of the preceding claims, wherein the domestic appliance system has a plurality of non-UWB-capable domestic appliances (1; 2; 3), each of which is respectively designed and configured to carry out a user-specific operation.

5. Domestic appliance system according to any of claims 1-4, wherein the UWB-capable appliance (4) is designed and configured to create a map of the space (0) from the known positions (C) of the user (6) relative to itself and to assign the non-UWB-capable domestic appliance (1; 2; 3) to the corresponding position in the space (0) on the basis of the performed usage of the non-UWB-capable domestic appliance (1; 2; 3) by the user (6).

6. Domestic appliance system according to any of claims 1-5, wherein the UWB-capable appliance (4) is designed and configured to detect a change in its own position in the space (0) on the basis of a deviation between the current position (B) of the user (6) in the space (0) during the performed usage of the non-UWB-capable domestic appliance (1; 2; 3) and the assigned position of the non-UWB-capable domestic appliance (1; 2; 3) in the space (0), and, in response thereto, to assign the non-UWB-capable domestic appliance (1; 2; 3) to the corresponding new position in the space (0) on the basis of the performed usage of the non-UWB-capable domestic appliance (1; 2; 3) by the user (6).

7. Domestic appliance system according to any of the preceding claims, wherein the UWB-capable appliance (4) is a UWB-capable domestic appliance.

8. Domestic appliance system according to any of claims 1 to 6, wherein the UWB-capable appliance (4) is a UWB-capable voice assistance system (4).

9. Method for operating a domestic appliance system for a space (0), the method comprising at least the steps of: a UWB-capable appliance (4) identifying a UWB-capable mobile terminal (5), a UWB-capable appliance (4) locating the UWB-capable mobile terminal (5) in the space (0) relative to the UWB-capable appliance (4), preferably in terms of distance and angle, the UWB-capable appliance (4) determining the current position (B) of a user (6) in the space (0) relative to a non-UWB-capable domestic appliance (1; 2; 3) using their UWB-capable mobile terminal (5), and the non-UWB-capable domestic appliance (1; 2; 3) carrying out a user-specific operation if the user (6) is situated in the space (0) at a predetermined proximity to the non-UWB-capable domestic appliance (1; 2; 3), wherein the non-UWB-capable domestic appliance (1; 2; 3) obtains the current position (B) of the user (6) in the space (0) relative to itself from the UWB-capable appliance (4) using non-UWB communication, wherein confirmation that usage has been performed by the user (6) is sent from the non-UWB-capable domestic appliance (1; 2; 3) to the UWB-capable mobile terminal (5) using non-UWB communication, and confirmation of the performed usage of the non-UWB-capable domestic appliance (1; 2; 3) by the user (6) is obtained by the UWB-capable appliance (4) from the non-UWB-capable domestic appliance (1; 2; 3) using non-UWB communication and the non-UWB-capable domestic appliance (1; 2; 3) is assigned to the corresponding current position (B) of the user (6) in the space (0) relative to itself.