Laundry care appliance with one control

Abstract

Laundry care appliance (100) with a laundry chamber (101) for receiving laundry items (103a,b), wherein the laundry items (103a,b) each have an identification element (105a,b) which is correlated with an identification code, and a controller (107), wherein the controller (107) is designed to carry out a laundry care program for treating the laundry items (103a,b) received in the laundry chamber (101), wherein the laundry care appliance (100) comprises a reading device (109) which is connected to the controller (107) and is designed to read out the identification codes correlated with the identification elements (105a,b) of the laundry items (103a,b) during a first time interval and a second time interval following the first time interval, wherein the reading device (109) or the controller (107) is designed to Identification codes of the laundry items (103a,b) to store in a first laundry list, wherein the reading device (109) or the controller (107) is designed to store the identification codes of the laundry items (103a,b) read out during the second time interval in a second laundry list, and wherein the reading device (109) or the controller (107) is designed to determine a change between the first laundry list and the second laundry list based on a comparison of the identification codes of the first laundry list and the second laundry list.

Description

The present invention relates to a laundry care appliance having a controller and a method for operating the laundry care appliance.Smart systems may be implemented in laundry care implements that assist a user in operating the laundry care implement. In this case, it may be necessary to identify laundry items by machine. For machine identification of laundry items, it may be necessary for a multiplicity of items of clothing of a user to be equipped with identification elements which enable a unique machine identification of the laundry items.EP 3 514 280 A1 discloses a method for organizing items of laundry to be treated.EP 2 527 517 A1 discloses a dryer with at least three RFID reading units.EP 23 02 122 A1 discloses a washing machine having a controller and at least one sensor for detecting at least one operating parameter.The object underlying the invention is to specify a laundry care appliance and a method for operating the laundry care appliance, with which laundry items can be detected as efficiently as possible.This object is achieved by the subject matters having the features according to the independent claims. Advantageous embodiments are the subject matter of the dependent claims, the description and the drawings.According to a first aspect, the object according to the invention is achieved by a laundry care appliance having a laundry chamber for receiving items of laundry, wherein the items of laundry each have an identification element which is correlated with an identification code, and a controller, wherein the controller is designed to execute a laundry care program for treating the items of laundry received in the laundry chamber, wherein the laundry care appliance comprises a reading device which is connected to the controller and is designed to read out the identification codes correlated with the identification elements of the items of laundry during a first time interval and a second time interval following the first time interval, characterized in that the reading device or the controller is designed to store the identification codes of the items of laundry read out during the first time interval in a first list of laundry, wherein the reading device or the controller is designed to read out, storing the identification identifiers of the laundry items read out during the second time interval in a second laundry list, and wherein the reading device or the controller is configured to determine a change between the first laundry list and the second laundry list based on a comparison of the identification identifiers of the first laundry list and the second laundry list.This achieves the technical advantage that the controller can efficiently grasp the laundry items. As a result, machine identification of the laundry items and calculation of a suitable laundry care program and / or a user identification for a user of the laundry care appliance can take place promptly, since the calculation is based only on the change.The term laundry list is to be interpreted broadly in principle, and a laundry list can also be understood as at least one value or data record which is volatile or non-volatile in the memory and is assigned to at least one part of an identification recognition of a laundry item.The first laundry list may be a unique laundry list, i.e., a laundry list in which identification identifiers of the laundry items are not included multiple times. The second laundry list may be a unique laundry list, i.e., a laundry list in which identification identifiers of the laundry items are not included multiple times.The reading device can be configured to identify the items of laundry on the basis of their respective identification identifiers. The controller may be configured to determine user information for a user of the laundry care appliance for display via a user interface based on the change and / or to adapt or determine the laundry care program based on the change.The change between the first laundry list and the second laundry list may include identification identifiers that are not included in the first laundry list and are included in the second laundry list. In this respect, the change between the first laundry list and the second laundry list can comprise identification identifiers of laundry items newly detected in the laundry chamber.The change between the first laundry list and the second laundry list may include identification identifiers included in the first laundry list and no longer included in the second laundry list. In this respect, the change between the first laundry list and the second laundry list can comprise identification identifiers of items of laundry no longer detected in the laundry chamber.The items of laundry can in particular each have a multiplicity of identification elements. For example, the same identification code of a laundry item can be correlated with the plurality of identification elements of the laundry item. The plurality of identification elements can comprise, for example, an RFID, a QR code and / or alphanumeric characters, in particular text characters.The identification elements of the laundry items can in particular each be correlated with a multiplicity of identification identifiers of the laundry items. For example, an identification element of a laundry item can be correlated with a plurality of identification identifiers of the laundry item, for example when using an RFID with an electronic product code, EPC, and a transponder identification number, TID.A laundry care appliance is understood to mean an appliance which is used for laundry care, such as a tumble dryer, a washing machine or a washer-dryer. In particular, such a laundry care appliance is understood to mean a household laundry care appliance. Thus, a laundry care appliance which is used in the context of domestic management and is treated with the laundry in amounts customary in domestic use.In one embodiment, the identification elements comprise laundry labels and / or identification threads sewn into the laundry items.In one embodiment, the reading device or the controller is configured to store the first laundry list and / or the second laundry list in a nonvolatile memory of the laundry care appliance. The reading device or the controller can be configured to read out the first laundry list and / or the second laundry list from the memory and provide it to the controller and / or provide the first laundry list and / or the second laundry list to the controller at regular time intervals.As a result, the items of laundry in the laundry chamber can be identified even after the occurrence of the fault event. The fault event can be, for example, a power failure of a power supply of the laundry care appliance and / or of the reading device, a reading fault of the reading device or a communication fault of the laundry care appliance.In an advantageous embodiment, the reading device is configured to read a part of an identification identifier of a laundry item, and, if the part of the identification identifier of the laundry item corresponds to reference identification information of the laundry items, to store the identification identifier of the laundry item read during the first time interval in the first laundry list and / or to store the identification identifier of the laundry item read during the second time interval in the second laundry list.This achieves the technical advantage that only identification identifiers which are assigned to items of laundry can be stored in the first and / or in the second laundry list. For example, the part of the identification identifiers may be a common prefix and / or a common suffix of the identification identifiers. The reading device can be configured if the part of the identification identifier of the item of laundry does not correspond to the reference identification of the items of laundry, to store the identification identifier of the item of laundry read out during the first time interval not in the first item of laundry list and / or to store the identification identifier of the item of laundry read out during the second time interval not in the second item of laundry list.The reference identification information can be reference identification information assigned to all laundry items known to the laundry care appliance.In an advantageous embodiment, the laundry care appliance comprises a drum drive for rotating the laundry chamber, wherein the controller is configured to activate the drum drive during the first and / or during the second time interval.This achieves the advantage that items of laundry located in a shadow region of the reading device and / or items of laundry concealed by other items of laundry can be detected more efficiently as a result of the rotation of the laundry chamber. The controller can rotate the laundry chamber at a rotational speed at which the items of laundry are scrambled and in particular do not abut the laundry chamber.The controller may in particular be configured to activate the drum drive during the first and / or during the second and / or during the third time interval. For example, the controller may be configured to activate the drum drive during all time intervals.In an advantageous embodiment, the laundry care appliance comprises a user interface, in particular a display of the laundry care appliance and / or a user interface connected to a mobile terminal, wherein the user interface is configured to receive and display user information based on the change between the first laundry list and the second laundry list from the controller.This achieves the technical advantage that the user information can be displayed to the user on the basis of the change.In an advantageous embodiment, the user information comprises a number of the items of laundry accommodated in the laundry chamber, and / or a weight of the items of laundry accommodated in the laundry chamber, and / or respective visual representations of the items of laundry accommodated in the laundry chamber and / or indications for treatment of the items of laundry accommodated in the laundry chamber.The visual representations of the items of laundry can comprise, in particular, respective images of the items of laundry. The visual representations, in particular the images, of the items of laundry can be stored in a memory of the washing appliance and / or in a server. The visual representations can be associated with a respective manufacturer product of the items of laundry.This achieves the technical advantage that information for efficient operation of the laundry care appliance can be provided to the user via the user information.The indications for the treatment of the items of laundry accommodated in the laundry chamber can comprise, for example, a selected washing agent from a plurality of washing agents for the items of laundry.Alternatively or additionally, the user information can comprise a treatment history of the items of laundry, for example how often the items of laundry have been washed, dried and / or spun.Alternatively or additionally, the user information can indicate which type of clothing is accommodated in the laundry chamber.Alternatively or additionally, the user information can indicate which laundry items can be removed from the laundry chamber and / or are not to be loaded into the laundry chamber, so that an efficient laundry care program can be selected for the laundry items remaining in the laundry chamber.Alternatively or additionally, the user information can specify which laundry items can still be picked up into the laundry drum in front of the laundry care appliance, in particular in a laundry basket, within a detection range of the at least one sensor element, in order to efficiently treat the laundry items.Alternatively or additionally, the user information can indicate which laundry items are additionally expected from a detection of an external reading device arranged outside the laundry care appliance. The external reading device can be comprised, for example, by an external washing machine, an external dryer, and / or a storage location for laundry items.In an advantageous embodiment, the controller is configured to identify a item of laundry of the second item of laundry not contained in the first item of laundry as a distinguishing feature based on the change between the first item of laundry and the second item of laundry, wherein the controller is configured to determine the user information based on the distinguishing feature.This achieves the technical advantage that it can be displayed to the user via the user information that a recently added item of laundry has the distinguishing feature from the remaining items of laundry in the laundry chamber.In an advantageous embodiment, the distinguishing feature comprises a color of the item of laundry and / or a piece of suitability information of the item of laundry for treatment in the laundry care appliance and / or a parameter restriction for a parameter of the laundry care program.If the distinguishing feature comprises a color of the item of laundry, this achieves the technical advantage that an undesired color change of items of laundry during the laundry care program can be prevented.If the distinguishing feature comprises a piece of suitability information of the item of laundry for treatment in the laundry care appliance, then the technical advantage is achieved in this way that laundry damage to items of laundry which are not suitable for treatment by the laundry care appliance can be avoided.If the distinguishing feature comprises a parameter of the laundry care program, then the technical advantage is achieved in that the user can select a laundry care program for the remaining laundry items, which may be operated, for example, in a time-optimized, energy-optimized, water consumption-optimized and / or with regard to the longevity of the laundry items.In an advantageous embodiment, the controller is configured to select a laundry care program from a plurality of laundry care programs of the laundry care appliance based on the change between the first laundry list and the second laundry list, wherein the user information comprises the selected laundry care program.This achieves the advantage that the user can be assisted in selecting a suitable laundry care program.In an advantageous embodiment, the controller is configured to select a laundry care program from a plurality of laundry care programs of the laundry care appliance based on the change between the first laundry list and the second laundry list, wherein the laundry care appliance comprises a user input element for user input of a user for an automatic mode of the laundry care appliance, wherein the controller is configured to set the selected laundry care program without further user input of the user.This achieves the advantage that the user can operate the laundry care appliance particularly easily.In an advantageous embodiment, the laundry care appliance can be connected to a server, in particular a cloud server, and wherein the controller is configured to transmit the identification identifiers of the change between the first laundry list and the second laundry list to the server and to receive from the server the user information based on the change between the first laundry list and the second laundry list and / or to receive the selected laundry care program of the plurality of laundry care programs.This achieves the advantage that the server can provide more powerful processor power and / or more up-to-date algorithms to determine the user information and / or select the laundry care program.In an advantageous embodiment, the reading device comprises an RFID reading device and the identification element comprises an RFID element, wherein in particular the identification identifiers comprise electronic product codes, EPC. If the identification identifiers comprise EPC, then the reading device can be configured to identify the items of laundry exclusively on the basis of the EPC.This achieves the technical advantage that the identification element can already contain a unique code, such as a TID (transponder identification number), which is specified by the manufacturer and which can already ensure a unique identification. The EPC, which can be changed in particular, can achieve an individual coding of the item of laundry and likewise a unique identification code. In this case, the EPC can be secured by a password and thus protected from unauthorized change by third parties.The RFID reading device can be configured to read out the laundry items based on the standard ISO 18000-63. The RFID reading device can be configured to first read out the EPC of the RFID element of the laundry items before further data of the RFID element of the laundry items are read out. Thereby, the detection rate of the laundry items can be increased.The RFID reading device can be configured to read out the RFID elements of the items of laundry at short time intervals, in particular in less than 0.05 seconds, preferably approximately every 0.01 seconds.Alternatively or additionally, the reading device comprises an optical reading device and the identification element comprises an optical code, in particular a 1D code such as a barcode and / or a 2D code such as a QR code or a data matrix.Alternatively or additionally, the reading device comprises an electromagnetic reading device, in particular an NFC reading device, an RAINFC reading device, a radar reading device and / or a Bluetooth reading device, which is configured to read out the identification identifiers from the identification elements of the laundry items.In an advantageous embodiment, the reading device or the controller is configured to store the identification identifiers of the items of laundry read out during a third time interval in a third laundry list, wherein the third time interval is between the first time interval and the second time interval, wherein the reading device or the controller is configured to determine a further change between the first laundry list and the third laundry list based on a further comparison of the identification identifiers of the first laundry list and the third laundry list, wherein the reading device or the controller is configured to detect the change between the first laundry list and the second laundry list based on the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of an item of laundry not contained in the first laundry list, when the change between the first laundry list and the second laundry list corresponds to the further change between the first laundry list and the third laundry list.This achieves the technical advantage that only laundry items in the change can be detected as additional laundry items which have been detected twice one after the other. This can increase the accuracy of detection by the readout device.In an advantageous embodiment, the reading device or the controller is configured to detect the change between the first laundry list and the second laundry list on the basis of the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of a item of laundry not contained in the second laundry list if a third time interval between the first time interval and the second time interval is greater than a time threshold value.This achieves the technical advantage that only laundry items in the change can be detected as removed laundry items that have not been detected during the third time interval. This can increase the accuracy of detection by the readout device. The time threshold value can be between 2 and 3 seconds, in particular 2.5 seconds.In an advantageous embodiment, the reading device comprises at least one sensor element, wherein the at least one sensor element is arranged in a window of an appliance door of the laundry care appliance, and / or on a rear side of a front cover of the laundry care appliance above the appliance door, and / or on the rear side of the front cover of the laundry care appliance below the appliance door, and / or on a front side of the front cover of the laundry care appliance above the appliance door, and / or on a laundry driver of the laundry chamber of the laundry care appliance and / or on a location for depositing items of laundry outside the laundry care appliance.If the at least one sensor element is arranged in the window of the appliance door of the laundry care appliance, the technical advantage is achieved that the laundry chamber can be completely detected or largely detected.If the at least one sensor element is arranged on the rear side of the front cover of the laundry care appliance above and / or below the appliance door, the technical advantage is achieved that the items of laundry can be detected efficiently even when the appliance door of the laundry care appliance is open.If the at least one sensor element is arranged on the front side of the front cover of the laundry care appliance above the appliance door, the technical advantage is achieved that laundry items located in front of the laundry care appliance can also be detected.If the at least one sensor element is arranged on a laundry carrier of the laundry chamber of the laundry care appliance, the technical advantage is achieved that the laundry chamber can be completely detected. Furthermore, efficient capture of the items of laundry can be carried out even when the laundry drum rotates. The energy supply of the sensor elements can be obtained here by means of electromagnetic induction during the drum rotation; in particular, a coil in the laundry carrier can rotate in a magnetic field which is built up in the drum by a fixed part of the laundry care appliance, thus charging a battery of the sensor element during the drum rotation. The at least one sensor element can be arranged in particular on a plurality of laundry drivers of the laundry chamber of the laundry care appliance.If the at least one sensor element is arranged at a storage location for laundry items outside the laundry care appliance, the technical advantage is achieved that laundry items can also be detected remote from the laundry care appliance, for example within a household appliance. In this case, the sensor element arranged at the location for depositing items of laundry outside the laundry care appliance can be connected to the laundry care appliance via a wireless communication network, in particular WLAN.Alternatively or additionally, the sensor element can be arranged at a distance from the appliance door, in particular on the front side and / or on the rear side of the front cover of the laundry care appliance at an appliance opening of the laundry care appliance for the appliance door. The sensor element can be arranged at any desired position around the device opening.In an advantageous embodiment, the at least one sensor element comprises an antenna that can be moved by a drive, wherein the controller is designed to set a first position of the movable antenna during the first time interval and to set a second position of the movable antenna different from the first position during the second time interval.This achieves the technical advantage that a detection range of the sensor element can be changed by the movable antenna. This can cause more efficient detection of the laundry items.In an advantageous embodiment, the laundry care appliance comprises a shield, in particular a metallic coating of a housing of the laundry care appliance and / or electrical conductors arranged in an appliance door of the laundry care appliance, wherein the shield is configured to shield a reading out of the items of laundry in the laundry chamber from an exterior of the laundry care appliance by the reading device.This achieves the technical advantage that undesired reading out of laundry items located directly in front of the laundry care appliance can be prevented, in particular by sensor elements directed onto the laundry chamber. This can cause more efficient detection of the laundry items. Furthermore, the shielding means enables the reading device, in particular the sensor element, to unambiguously distinguish between items of laundry in and outside the appliance, for example items of laundry which the user is carrying or carrying with them, not to count as being within the laundry care appliance.According to a second aspect, the object according to the invention is achieved by a method for operating a laundry care appliance having a laundry chamber for receiving items of laundry, wherein the items of laundry each have an identification element which is correlated with an identification code, and a controller, wherein the controller is designed to execute a laundry care program for treating the items of laundry received in the laundry chamber, wherein the laundry care appliance comprises a reading device which is connected to the controller and is designed to read out the identification codes correlated with the identification elements of the items of laundry, wherein the method comprises: reading out the identification codes of the items of laundry during a first time interval and during a second time interval following the first time interval by the reading device; storing the identification identifiers of the laundry items read out during the first time interval in a first laundry list by the reading device or the controller; storing the identification identifiers of the laundry items read out during the second time interval in a second laundry list by the reading device or the controller; and determining, based on a comparison of the identification identifiers of the first laundry list and the second laundry list, a change between the first laundry list and the second laundry list by the reading device or the controller.According to a third aspect, the object according to the invention is achieved by a system comprising the laundry care appliance according to the first aspect and laundry items, a server, a mobile appliance connectable to the user interface of the laundry care appliance and / or an external reading device.The external reading device can be designed to read out the identification identifiers of the identification elements of the laundry items outside the laundry care appliance. The mobile device or the display of the laundry care appliance can be configured, after a user input, to register the items of laundry in a database of the server on the basis of the identification identifiers read out by the external reading device. The external reading device can be arranged, for example, in a clothes cabinet of the user and / or integrated in the mobile device.The embodiments mentioned for the laundry care appliance according to the first aspect are likewise embodiments for the method according to the second aspect and for the system according to the third aspect.The embodiments mentioned for the method according to the second aspect are likewise embodiments for the laundry care appliance according to the first aspect and for the system according to the third aspect.The embodiments mentioned for the system according to the third aspect are likewise embodiments for the laundry care appliance according to the first aspect and for the method according to the second aspect.Exemplary embodiments of the invention are illustrated in the drawings and are described in more detail below.The following are shown: FIG. 1 shows a schematic view of a laundry care appliance according to one embodiment; FIG. 2 shows a schematic view of a laundry care appliance according to an embodiment; FIG. 3 shows a schematic view of a laundry care appliance according to an embodiment; FIG. 4 shows a schematic view of a detection region of a reading device of a laundry care appliance according to one embodiment; and FIG. 5 shows a schematic illustration of a method for operating a laundry care appliance according to one embodiment.FIG. 1 shows a schematic view of a laundry care appliance 100 according to an embodiment, such as a tumble dryer, a washing machine or a washer-dryer. The laundry care appliance 100 can have a housing 102 with an appliance opening 121, not shown in FIG. 1, which can be closed by an appliance door 119, not shown in FIG. 1, for loading the laundry care appliance 100. A user of the laundry care appliance 100 can introduce laundry items 103 a, bthrough the appliance opening 121 into a laundry chamber 101 arranged within the housing 102 and illustrated only schematically in FIG. 1.As schematically shown in FIG. 1, the laundry items 103 a, bhave in each case an identification element 105 a, bwhich is correlated with an identification code. A controller 107 of the laundry care appliance 100 is configured to execute a laundry care program for treating the items of laundry 103 a,bcontained in the laundry chamber 101.The laundry care appliance 100 comprises a reading device 109 which is connected to the controller 107 and is designed to read out the identification identifiers correlated with the identification elements 105 a,bof the laundry items 103 a,bduring a first time interval and a second time interval following the first time interval. The reading device 109 can be integrated in the laundry care appliance 100 or arranged on the laundry care appliance 100, in particular on an outer side of the housing 102.The reading device 109 or the controller 107 is configured to store the identification identifiers of the items of laundry 103 a,bread out during the first time interval in a first item of laundry and to store the identification identifiers of the items of laundry 103 a,bread out during the second time interval in a second item of laundry list.The reading device 109 can be configured to read out a part of an identification identifier of a laundry item 103 a,band, if the part of the identification identifier of the laundry item 103 a,bcorresponds to reference identification information of the laundry items 103 a,b, to store the identification identifier of the laundry item 103 a,bread during the first time interval in the first laundry list and / or to store the identification identifier of the laundry item 103 a,bread during the second time interval in the second laundry list.Accordingly, the reading device 109 can be configured if the part of the identification identifier of the item of laundry 103 a,bdoes not correspond to the reference identification information of the items of laundry 103 a,b, to store the identification identifier of the item of laundry 103 a,bread during the first time interval not in the first item of laundry list and / or to store the identification identifier of the item of laundry 103 a,bread during the second time interval not in the second item of laundry list.The reading device 109 or the controller 107 is configured to determine a change between the first laundry list and the second laundry list based on a comparison of the identification identifiers of the first laundry list and the second laundry list.Furthermore, the reading device 109 or the controller 107 can be configured to store the identification identifiers of the items of laundry 103 a, bread during a third time interval in a third laundry list. The third time interval may be between the first time interval and the second time interval. The reading device 109 or the controller 107 can be configured to determine a further change between the first laundry list and the third laundry list on the basis of a further comparison of the identification identifiers of the first laundry list and the third laundry list. The reading device 109 or the controller 107 can be configured to detect the change between the first laundry list and the second laundry list, based on the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of a laundry item 103 a,bnot contained in the first laundry list, if the change between the first laundry list and the second laundry list corresponds to the further change between the first laundry list and the third laundry list.Alternatively or additionally, the reading device 109 or the controller 107 can be configured to detect the change between the first laundry list and the second laundry list if a third time interval between the first time interval and the second time interval is greater than a time threshold value based on the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of a laundry item 103 a,bnot contained in the second laundry list.As shown in FIG. 1, the laundry care appliance 100 can comprise a user interface designed as a display 111. Alternatively or additionally, the user interface, even if not shown in FIG. 1, can be a user interface connected to a mobile terminal of a user of the laundry care appliance 100. The user interface may be configured to receive and display user information based on the change between the first laundry list and the second laundry list from the controller 107.The user information can comprise a number of laundry items 103 a,b picked up in the laundry chamber 101, and / or a weight of the laundry items 103 a,b picked up in the laundry chamber 101, and / or respective visual representations of the laundry items 103 a,b picked up in the laundry chamber 101 and / or indications for treatment of the laundry items 103 a,b picked up in the laundry chamber 101.Based on the change between the first laundry list and the second laundry list, the controller 107 may be configured to identify a item of laundry 103 a,bof the second laundry list that is not contained in the first laundry list as a distinguishing feature. The controller 107 may be configured to determine the user information based on the distinguishing feature. The distinguishing feature can comprise a color of the item of laundry 103 a,band / or a piece of suitability information of the item of laundry 103 a,bfor treatment in the laundry care appliance 100 and / or a parameter restriction for a parameter of the laundry care program.The controller 107 may be further configured to select a laundry care program from a plurality of laundry care programs of the laundry care appliance 100 based on the change between the first laundry list and the second laundry list. The user information may include the selected laundry care program. Alternatively or additionally, the laundry care appliance 100 can comprise a user input element for user input of a user for an automatic mode of the laundry care appliance 100. The controller 107 can be configured to set the selected laundry care program without further user input of the user merely by actuating the user input element.As schematically further illustrated in FIG. 1, the laundry care appliance 100 can be connectable to a server 115, in particular a cloud server. The controller 107 may be configured to transmit the identification identifiers of the change between the first laundry list and the second laundry list to the server 115 and to receive from the server 115 the user information based on the change between the first laundry list and the second laundry list and / or the selected laundry care program of the plurality of laundry care programs.For example, a user of the laundry care appliance 100 can be provided with a digital assistant based on the change via the user interface, with the aid of which digital assistant the real and virtual interaction and management of the items of laundry 103 a, bare simplified. In this case, the digital assistant can inform the user about the user information about how the items of laundry 103 a, bto be treated optimally during their entire life cycle in order to extend the useful life of the items of laundry 103 a, bby means of the optimized treatment.FIG. 2 shows a schematic view of a laundry care appliance 100 according to an embodiment. The laundry care appliance 100 can be the laundry care appliance 100 described with reference to FIG. 1. As shown in FIG. 2, the laundry care appliance 100 can have the appliance opening 121, which can be closed by the appliance door 119 for loading the laundry care appliance 100.As further illustrated in FIG. 2, the readout device 109 may comprise at least one sensor element 113 a,b. A first sensor element 113 amay be disposed on a front side of a front cover 117 of the laundry care apparatus 100 above the apparatus door 119 and the apparatus opening 121. The first sensor element 113 acan be designed to detect the items of laundry 103 a, boutside the laundry care appliance 100.Although hidden by the front cover 117 in FIG. 2, a second sensor element 113 bmay be disposed at a rear side of the front cover 117 of the laundry appliance 100 above the appliance door 119 and the appliance opening 121. The second sensor element 113 bmay be configured to sense the laundry items 130 a, bwithin the laundry care appliance 100, in particular in the laundry chamber 101.If, for example, a laundry item 103 a,bcomes into a detection range of one of the sensor elements 113 a, 113 b, it can be checked whether the laundry item 103 a,bhas likewise been detected by the other sensor element 113 a, 113 bwithin an, in particular shorter, time interval and a direction of movement of the laundry item 103 a, 103 bis thereby detected. Based on this, it can be detected whether the laundry item 103 a, 103 bis loaded into the laundry chamber 101 or whether the laundry item 103 a, 103 bis removed from the laundry chamber 101.If a laundry item 103 a,barranged outside the laundry care appliance 100 is detected by the first sensor element 113 a, for example, over a further time interval, in particular a longer time interval, then the controller 107 can be configured to identify the laundry item 103 a,barranged outside the laundry care appliance 100 as being for the treatment in the laundry care appliance 100. The controller 107 can be configured to determine the user information further on the basis of the identification identifier of the item of laundry 103 a,barranged outside the laundry care appliance 100. This can comprise, for example, a laundry care program recommendation or a recommendation of a washing agent.This achieves the advantage that laundry items 103 a, bcan be identified already during loading, which items are suitable for treatment in the laundry care appliance 100 and, on the basis thereof, output a warning of the customer if they are not suitable in the user information. Furthermore, even during the loading or unloading process, even in the case of a mutual loading or unloading process, such as for example the removal of items of laundry 103 a, bduring the loading process, the user information and / or the laundry care program can be adapted. Detection by the reading device 109, in particular also items of laundry 103 a, barranged from outside the laundry care appliance 100, can furthermore take place when the appliance door 119 is open.FIG. 3 shows a schematic view of a laundry care appliance 100 according to an embodiment. The laundry care appliance 100 can be the laundry care appliance 100 described with reference to FIG. 1. As shown in FIG. 3, the laundry care appliance 100 can have the appliance opening 121, which can be closed by the appliance door 119 for loading the laundry care appliance 100.As further illustrated in FIG. 3, the readout device 109 may comprise at least one sensor element 113 a,b. A first sensor element 113 amay be disposed on a rear side of a front cover 117 of the laundry care apparatus 100 above the apparatus door 119. A second sensor element 113 bmay be disposed at the rear of the front cover 117 of the laundry device 100 below the device door 119.This achieves the advantage that the sensor elements 113 a, bare not visible to the user and the front cover 117 of the laundry care appliance 100 can be shaped in a visually appealing manner.Even if this is not shown in FIG. 3, the laundry care appliance 100 can comprise a shield, in particular a metallic coating of the housing 102 of the laundry care appliance 100 and / or electrical conductors arranged in the appliance door 119 of the laundry care appliance 100, wherein the shield is designed to shield reading out of the items of laundry 103 a, bin the laundry chamber 101 from an exterior of the laundry care appliance 100 by the reading device 109.As shown in FIG. 3, the appliance door 119 can be connected to the laundry chamber 101 via a sleeve 123, which is made in particular of rubber. The sensor elements 113 a, bmay be configured to detect the items of laundry 103 a, bduring loading into the laundry chamber 101 or unloading from the laundry chamber 101 through the sleeve 123. In this case, the sensor elements 113 a, bmay be designed in particular as RFID sensors. The reading device 109 can comprise an RFID reading device 109 and the identification element 105 a,bmay comprise an RFID element.The laundry care appliance 100 can further comprise a drum drive for rotating the laundry chamber 101. The controller 107 may be configured to activate the drum drive during the first and / or during the second time interval.This makes it possible, for example, for laundry items 103 a, blocated outside a detection region 125 of the sensor elements 113 a, bin a shadow region 127 to be conveyed within the laundry chamber 101 into the detection region 125 by rotation of the laundry chamber 101 and thus to be detected efficiently.Alternatively or additionally, the at least one sensor element 113 a, bmay comprise an antenna movable by a drive. The controller 107 may be configured to set a first position of the movable antenna during the first time interval and to set a second position of the movable antenna different from the first position during the second time interval.FIG. 4 shows a schematic view of a detection region 125 of a reading device 109 of a laundry care appliance 100 according to an embodiment.The laundry care appliance 100 can be the laundry care appliance 100 described with reference to FIG. 1. Even if this is not shown in FIG. 4, the at least one sensor element 113 a, bmay be arranged in a window of the appliance door 119 of the laundry care appliance 100.The sensor element 113 a, barranged in the device door 119 can comprise in particular an RFID antenna. The sensor element 113 a, barranged in the device door 119 can be designed as a circularly polarized antenna. Thus, even unpredictable positioned RFID labels in the laundry chamber 101 can be detected efficiently. The circularly polarized antenna may detect more RFID labels than, for example, a linearly polarized antenna and may be more robust with respect to the positioning of the RFID labels in the laundry chamber 101.Alternatively or additionally, the sensor element 113 a, barranged in the device door 119 can comprise a linearly polarized antenna. A range and / or reading accuracy of sensor element 113 a,bmay thus be increased.This achieves the advantage that, as illustrated in FIG. 4 by the detection region 125, the sensor element 113 a, bcan completely detect the laundry chamber 101. Furthermore, the sensor element 113 a, bcan thus be installed easily and quickly. A power supply and / or data connection of the sensor element 113 a, barranged in the appliance door 119 can be integrated into the laundry care appliance 100, for example, or can be carried out separately. For example, an antenna cable of the sensor element 113 a, bmay be led laterally out of the appliance door 119 and either be led into the laundry care appliance 100 or connected to the reading device 109 arranged on the laundry care appliance 100.FIG. 5 shows a schematic illustration of a method 200 for operating a laundry care appliance 100 according to one embodiment. As already described with reference to FIG. 1, the laundry care appliance 100 comprises a laundry chamber 101 for receiving laundry items 103 a,b, wherein the laundry items 103 a,bhave in each case an identification element 105 a,b, which is correlated with an identification code, and a controller 107, wherein the controller 107 is configured to execute a laundry care program for treating the laundry items 103 a,b received in the laundry chamber 101, wherein the laundry care appliance 100 comprises a reading device 109 which is connected to the controller 107 and is configured to read out the identification codes correlated with the identification elements 105 a,bof the laundry items 103 a,b.The method 200 comprises, as a first method step, reading 201 the identification identifiers of the items of laundry 103 a, bvia a first time interval and via a second time interval following the first time interval by the reading device 109.The method 200 comprises, as a second method step, storing 203 the identification identifiers of the items of laundry 103 a, bread out during the first time interval in a first laundry list by the reading device 109 or the controller 107.The method 200 comprises, as a third method step, storing 205 the identification identifiers of the items of laundry 103 a, bread out during the second time interval in a second laundry list by the reading device 109 or the controller 107.The method 200 comprises, as a fourth method step, determining 207 based on a comparison of the identification identifiers of the first laundry list and the second laundry list, a change between the first laundry list and the second laundry list by the reading device 109 or the controller 107.All features explained and shown in connection with individual embodiments of the invention can be provided in different combinations in the subject matter according to the invention in order to realize their advantageous effects at the same time.The scope of the present invention is given by the claims and is not limited by the features explained in the specification or shown in the figures.List of reference characters100 Laundry care appliance 101 laundry chamber 102 housing 103 a,bwash items 105 a,bidentifi- er elements 107 controller 109 reading device 111 display 113 a,bsensor elements 115 server 117 front cover 119 appliance door 121 appliance opening 123 sleeve 125 detection region 127 shadow region 200 method for operating a laundry care appliance 201 first method step: reading out the identification identifiers 203 second method step: storing the identification identifiers 205 read out during the first time interval third method step: storing the identification identifiers 207 read out during the second time interval fourth method step: determining a change between the first laundry list and the second laundry listReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedEP 3 514 280 A1

[0003] EP 2 527 517 A1

[0004] EP 23 02 122 A1

[0005]

Claims

Laundry care appliance (100) having a laundry chamber (101) for receiving items of laundry (103a,b), wherein the items of laundry (103a,b) each have an identification element (105a,b) which is correlated with an identification code, and having a controller (107), wherein the controller (107) is designed to execute a laundry care program for treating the items of laundry (103a,b) received in the laundry chamber (101), wherein the laundry care appliance (100) comprises a reading device (109) which is connected to the controller (107) and is designed to read out the identification codes correlated with the identification elements (105a,b) of the items of laundry (103a,b) during a first time interval and a second time interval following the first time interval, characterized in that, the reading device (109) or the controller (107) being configured to store the identification identifiers of the items of laundry (103a,b) read out during the first time interval in a first item of laundry list, wherein the reading device (109) or the controller (107) is configured to store the identification identifiers of the items of laundry (103a,b) read out during the second time interval in a second item of laundry list, and wherein the reading device (109) or the controller (107) is configured to determine a change between the first item of laundry and the second item of laundry list on the basis of a comparison of the identification identifiers of the first item of laundry and the second item of laundry list.Laundry care appliance (100) according to claim 1, characterised in that the reading device (109) is configured to read a part of an identification identifier of a laundry item (103a,b), and, if the part of the identification identifier of the laundry item (103a,b) corresponds to reference identification information of the laundry items (103a,b), to store the identification identifier of the laundry item read during the first time interval in the first laundry list and / or to store the identification identifier of the laundry item read during the second time interval in the second laundry list.Laundry care appliance (100) according to claim 1 or 2, characterised in that the laundry care appliance (100) comprises a drum drive for rotating the laundry chamber (101), wherein the controller (107) is configured to activate the drum drive during the first and / or during the second time interval.Laundry care appliance (100) according to one of the preceding claims, characterized in that the laundry care appliance (100) comprises a user interface, in particular a display (111) of the laundry care appliance (100) and / or a user interface connected to a mobile terminal, wherein the user interface is designed to receive and display user information based on the change between the first laundry list and the second laundry list from the controller (107).Laundry care appliance (100) according to claim 4, characterised in that the user information comprises a number of the items of laundry (103a,b) accommodated in the laundry chamber (101) and / or a weight of the items of laundry (103a,b) accommodated in the laundry chamber (101) and / or respective visual representations of the items of laundry (103a,b) accommodated in the laundry chamber (101) and / or indications for treatment of the items of laundry (103a,b) accommodated in the laundry chamber (101).Laundry care appliance (100) according to claim 4 or 5, characterised in that the controller (107) is configured to identify a item of laundry of the second laundry list not contained in the first laundry list as a distinguishing feature based on the change between the first laundry list and the second laundry list, wherein the controller (107) is configured to determine the user information based on the distinguishing feature.Laundry care appliance (100) according to claim 6, characterized in that the distinguishing feature comprises a color of the laundry item and / or an item of suitability information of the laundry item for treatment in the laundry care appliance (100) and / or a parameter restriction for a parameter of the laundry care program.Laundry care appliance (100) according to one of Claims 4 to 7, characterized in that the controller (107) is designed to select a laundry care program from a multiplicity of laundry care programs of the laundry care appliance (100) on the basis of the change between the first laundry list and the second laundry list, the user information comprising the selected laundry care program.Laundry care appliance (100) according to one of the preceding claims, characterized in that the controller (107) is designed to select a laundry care program from a plurality of laundry care programs of the laundry care appliance (100) based on the change between the first laundry list and the second laundry list, wherein the laundry care appliance (100) comprises a user input element for user input of a user for an automatic mode of the laundry care appliance (100), wherein the controller (107) is designed to set the selected laundry care program without further user input of the user.Laundry care appliance (100) according to one of Claims 4 to 9, characterized in that the laundry care appliance (100) can be connected to a server, in particular cloud server, and wherein the controller (107) is designed to transmit the identification identifiers of the change between the first laundry list and the second laundry list to the server and to receive from the server the user information based on the change between the first laundry list and the second laundry list and / or to receive the selected laundry care program from the plurality of laundry care programs.Laundry care appliance (100) according to one of the preceding claims, characterized in that the reading device (109) comprises an RFID reading device (109) and the identification element (105a,b) comprises an RFID element, wherein in particular the identification identifiers comprise electronic product codes, EPC.Laundry care appliance (100) according to one of the preceding claims, characterized in that the reading device (109) or the controller (107) is designed to store the identification identifiers of the items of laundry (103a, b) read out during a third time interval in a third laundry list, wherein the third time interval is between the first time interval and the second time interval, wherein the reading device (109) or the controller (107) is designed to determine a further change between the first laundry list and the third laundry list on the basis of a further comparison of the identification identifiers of the first laundry list and the third laundry list, wherein the reading device (109) or the controller (107) is designed to determine a further change between the first laundry list and the third laundry list, based on the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of a laundry item not contained in the first laundry list, to detect the change between the first laundry list and the second laundry list if the change between the first laundry list and the second laundry list corresponds to the further change between the first laundry list and the third laundry list.Laundry care appliance (100) according to one of the preceding claims, characterized in that the reading device (109) or the controller (107) is designed to detect the change between the first laundry list and the second laundry list on the basis of the comparison of the identification identifiers of the first laundry list and the second laundry list for an identification number of a item of laundry not contained in the second laundry list, if a third time interval between the first time interval and the second time interval is greater than a time threshold value.Laundry care appliance (100) according to one of the preceding claims, characterized in that the reading device (109) comprises at least one sensor element (113a, b), wherein the at least one sensor element (113a, b) is arranged in a window of an appliance door (119) of the laundry care appliance (100), and / or on a rear side of a front cover (117) of the laundry care appliance (100) above the appliance door (119), and / or on the rear side of the front cover (117) of the laundry care appliance (100) below the appliance door (119), and / or on a front side of the front cover (117) of the laundry care appliance (100) above the appliance door (119), and / or on a laundry carrier of the laundry chamber ( 101) of the laundry care appliance ( 100) and / or on a storage location for laundry items ( 103 a, b) outside the laundry care appliance ( 100).Laundry care appliance (100) according to claim 14, characterised in that the at least one sensor element (113a, b) comprises an antenna which can be moved by a drive, wherein the controller (107) is designed to set a first position of the movable antenna during the first time interval and to set a second position of the movable antenna different from the first position during the second time interval.Laundry care appliance (100) according to one of the preceding claims, characterized in that the laundry care appliance (100) comprises a shield, in particular a metallic coating of a housing (102) of the laundry care appliance (100) and / or electrical conductors arranged in an appliance door (119) of the laundry care appliance (100), wherein the shield is configured to shield reading of the items of laundry (103a, b) in the laundry chamber (101) from an exterior of the laundry care appliance (100) by the reading device (109).Method (200) for operating a laundry care appliance (100) having a laundry chamber (101) for receiving laundry items (103a,b), wherein the laundry items (103a,b) each have an identification element (105a,b) which is correlated with an identification code, and a controller (107), wherein the controller (107) is designed to execute a laundry care program for treating the laundry items (103a,b) received in the laundry chamber (101), wherein the laundry care appliance (100) comprises a reading device (109) which is connected to the controller (107) and is designed to read out the identification codes correlated with the identification elements (105a,b) of the laundry items (103a,b), wherein the method (200) comprises: reading (201), by the reading device (109), the identification identifiers of the laundry items (103a,b) during a first time interval and during a second time interval following the first time interval; characterized in that the method (200) further comprises: storing (203), by the reading device (109) or the controller (107), the identification identifiers of the laundry items (103a,b) read out during the first time interval in a first laundry list; storing (205), by the reading device (109) or the controller (107), the identification identifiers of the laundry items (103a,b) read out during the second time interval in a second laundry list; and determining (207), based on a comparison of the identification identifiers of the first laundry list and the second laundry list, a change between the first laundry list and the second laundry list by the reading device (109) or the controller (107).

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