DE102018205843A1 - Household refrigeration appliance with identification device for transponders - Google Patents

Abstract

A household cooling device (1) has a cooling space (4) which can be charged with goods to be cooled (G1, G2) and at least one identification device (6) for wirelessly identifying transponders (T1, T2) in the cooling space (4) Identification device (6) between a plurality of predetermined reading frequencies (fi) is switchable and the household cooling device (1) is adapted to determine from a location of the household cooling device (1) dependent frequency information and the reading frequency (fi) of the identification device (6) depending on the determined location-dependent frequency information set. A method (S1-S7) is used to operate a household refrigerator (1) with at least one identification device (6) for wirelessly identifying transponders (T1, T2) in a refrigerated space (4), the household refrigerating appliance (1) having a frequency information associated with its location is determined (S1-S3, S5-S7) and a reading frequency (fi) of the identifying means (6) is set based on the location-dependent frequency information (S4). The invention is particularly advantageously applicable to refrigerators, freezers, wine storage cabinets, etc.

Description

The invention relates to a household refrigeration appliance, comprising a cooling space which can be charged with goods to be cooled, and at least one identification device for the wireless identification of transponders in the refrigerated space. The invention also relates to a method for operating a household refrigerator with at least one identification device for wirelessly identifying transponders in a cold room. The invention is particularly advantageously applicable to refrigerators, freezers, wine storage cabinets, etc.

For household refrigerators, it is disadvantageous that they have to be adapted extensively to operating rules and standards of different countries or regions in order to be allowed to operate there. For example, this increases the production costs. It is also disadvantageous that a user, if he moves between countries with different standards, if necessary, his household refrigerators can not take along or must be converted consuming.

CN 1904902 A relates to an information device for a refrigerator including an RFID reader, a storage device, a display device and a microcomputer. The RFID reader is installed in the refrigerator. It is also disclosed to establish a data communication with an external server in order to be able to quickly provide a user with food information about foods whose RFID transponders have been read out by the RFID reader.

CN 106203204 A discloses a dynamic RFID identification method for refrigerators. Refrigerators comprise a cabinet and a door, the cabinet is provided with a cabinet opening, the door is installed at the cabinet opening in an opening and closing mode, a storage space is formed in the cabinet, a reader-writer and an RFID antenna are are arranged in the cabinet and connected to each other, and the RFID antenna is located near the cabinet opening and generates at least in a cabinet opening area an electromagnetic field. With the aid of the dynamic RFID identification method of the cooling device, stored and removed articles can be counted dynamically.

It is the object of the present invention to at least partially overcome the disadvantages of the prior art and, in particular, to provide an improved way of adapting a household refrigerator to operation in different countries.

This object is achieved according to the features of the independent claims. Advantageous embodiments are the subject of the dependent claims, the description and the drawings.

The object is achieved by a household refrigerator, having a coolable area to be cooled and at least one identification device for wirelessly identifying transponders in the refrigerator, wherein the identification device is switchable between a plurality of predetermined reading frequencies and the household refrigerator is adapted to To determine a dependent location frequency of the household refrigerator information and set the read frequency of the identification device in dependence on the determined location-dependent frequency information.

This household refrigerator has the advantage that it can set the reading frequency of the identification device automatically depending on its location. This in turn makes it possible to comply with location-dependent rules for the read frequency without costly adjustments by a user or service technician.

The household refrigerator may be a refrigerator, a freezer, a wine storage cabinet, etc., or a combination thereof.

The identification device for wirelessly identifying transponders may also be referred to as a "reader" or "scanner". Specifically, the identifying means comprises a transmitting means for outputting signals (e.g., reading pulses) having a predetermined frequency or a predetermined frequency range (hereinafter referred to as "reading frequency" without limitation to the generality) and receiving means for receiving signals at the reading frequency. The frequency or the frequency range is in particular a radio frequency or a radio frequency range. The transmitting device and the receiving device may be present as a common unit or component ("transceiver"). Once the signals from a transponder have been received and modulated again, the information contained in the modulated signal (e.g., a code) may be identified by the identification device. The identification means may comprise a data processing unit (e.g., a microprocessor), memory, etc. for this purpose.

It is a development that the identification device for wireless identification of RFID transponders is set up. It can then also be referred to as an RFID identification device or RFID reader

It is a development that the location-dependent frequency information is a location. The location may have a geographical position (eg a latitude and longitude), a city, a country (eg Germany, the United States, Russia, China, Japan), a region (eg an economic zone, a union of countries such as the European Union), etc . be. The location may be in the form of a code (e.g., a country code). In this case, the household refrigerator may have a database in which different locations are associated with respective read frequencies and configured to set a suitable read frequency based on the determined location. Alternatively or additionally, the reading frequencies suitable for different locations may be retrievable from an external unit such as the so-called "cloud".

It is an alternative or additional development that the location-dependent frequency information comprises one or more reading frequencies. In this case, the household refrigerator determines directly suitable for its location at least one reading frequency.

• - dann, wenn eine aktuell eingestellte Lesefrequenz bereits einer für den bestimmten Standort ermittelten geeigneten Lesefrequenz entspricht, das Haushalts-Kühlgerät dazu eingerichtet ist, die Lesefrequenz zu belassen bzw. nicht zu ändern, und dass
• - dann, wenn eine aktuell eingestellte Lesefrequenz keiner für den bestimmten Standort ermittelten geeigneten Lesefrequenz entspricht, das Haushalts-Kühlgerät dazu eingerichtet ist, die Lesefrequenz auf eine für den bestimmten Standort passende Lesefrequenz umzuschalten oder umzustellen.

It is a further development of the function to set or adapt the reading frequency of the identification device as a function of the determined location-dependent frequency information

• if a currently set reading frequency already corresponds to an appropriate reading frequency determined for the particular location, the household refrigerator is arranged to leave or not to change the reading frequency;
• if a currently set reading frequency does not correspond to an appropriate reading frequency determined for the particular location, then the household refrigerator is adapted to switch or adjust the reading frequency to a reading frequency appropriate to the particular location.

It is a further development that if the identification device can not be set to a reading frequency which is suitable for the specific location and / or if no reading frequency suitable for the particular location could be determined, the identification device or an associated identification function can be deactivated. This can in particular also be expressed in such a way that the identification device can be deactivated if the identification device does not know and / or support any reading frequency which is suitable for the particular location.

It is an embodiment that the household cooling device is set up to set the reading frequency to a value that is permitted at the location for the at least one identification device. As a result, compliance with operating regulations and standards of different countries or regions is achieved particularly reliably.

It is an embodiment that the at least one identification device comprises at least one RFID reader (comprising, for example, an RFID transmitter and an RFID receiver or an RFID transceiver) and the adjustable read frequencies comprise a plurality of RFID read frequencies. The RFID read frequencies may be e.g. Longwave frequencies (LF) between 30 kHz and 300 kHz, shortwave frequencies (HF) between 0.3 MHz and 300 MHz and / or decimeter wave frequencies (UHF) between 0.3 GHz and 3 GHz. The RFID read frequencies may in particular be in one or more ISM bands, for example between 9 kHz and 135 kHz (eg at 135 kHz), at 6.78 MHz, at 13.56 MHz, at 27.125 MHz, at 40.680 MHz 433.920 MHz, at 868 MHz and / or at 2.45 GHz.

It is an embodiment that the household cooling device has at least one communication interface for communication with at least one external instance, wherein the household cooling device is set up to determine the location-dependent frequency information by means of at least one external instance. This provides the advantage that the location of the household refrigerator with particularly sufficient accuracy for most practical cases can be determined. For example, a separate ("localization") component (such as a GPS module) for determining the location of the household refrigerator may be dispensed with.

Alternatively or additionally, the household refrigerator may be configured to determine its location by means of a localization component integrated into the household refrigerator. This results in the advantage that the location can be determined particularly accurately and, moreover, the adaptation of the reading frequencies can also be carried out without a communication connection to an external entity. For example, by means of the localization component, a geographic location of the household refrigerator may be determined as its location and thereby the country assigned to the geographical location or the like. be determined with the reading frequencies permitted therein.

The at least one communication interface may be a wired communication interface (eg, an Ethernet interface, etc.) and / or a wireless communication interface Communication interface (eg, a wireless interface, a Bluetooth interface, etc.) include or be.

It is an embodiment that the household refrigerator is connected to the external entity via a network of computer networks or autonomous systems, e.g. the internet, connected. This allows a particularly simple way to determine the location-dependent frequency information. The communication interface can also be referred to as an Internet interface.

It is a further development that the household cooling device is connected to the external entity via a wireless P2P direct connection, e.g. via a Bluetooth connection, via a Wi-Fi direct connection, etc. This allows determination of the location-dependent frequency information even if there is no Internet connection or no direct Internet connection for the household refrigerator. The P2P access point (e.g., a user terminal such as a smartphone or tablet PC or even a wireless router) may then be used as a network access point, e.g. as a so-called "hotspot", to connect to a network of computer networks such as the Internet.

It is an embodiment that the household cooling device is set up to determine the location-dependent frequency information during or after an initialization. Thereby, the location-dependent frequency information can be automatically determined for the case that a household refrigerator has been re-set up. However, initialization may also be done at other times, e.g. at regular intervals, in response to a user input, etc. The initialization may be limited to the identification device, which provides the advantage that the household cooling device can perform its cooling functions without interruption by the initialization.

It is an embodiment that the external entity is a dedicated network server, that is, a network server that is purposefully configured to transfer frequency information dependent on the location of the household refrigerator to the household refrigerator. The dedicated network server may, for example, be a dedicated network server for this purpose, for example a network server operated by a home refrigerator manufacturer. The household cooling device can then advantageously be set up to connect to the dedicated network server for the purpose of a location query. For this purpose, the household cooling device may in particular be in the possession of a (network) address of the dedicated network server. The dedicated network server may transmit the location of the home refrigerator and / or appropriate read frequencies to the home refrigerator.

In principle, the household refrigerator can come into possession of the address of the dedicated network server in different ways. One possibility is to store the address or multiple addresses of different dedicated network servers in the home refrigerator in the factory. If the addresses of several network servers are stored in the household cooling device, these can be selected, for example, via a user interface on the household cooling device.

• - von einem damit verbundenen Nutzerendgerät eine Adresse des dedizierten Netzwerk-Servers zu empfangen,
• - anhand der Adresse eine Verbindung mit dem dedizierten Netzwerk-Server aufzubauen und
• - von dem dedizierten Netzwerk-Server die standortabhängige Frequenzinformation zu empfangen, z.B. abzufragen.

It is an advantageous embodiment for a particularly reliable determination of the location-dependent frequency information that the household refrigerator is set up to

• receive an address of the dedicated network server from an associated user terminal,
• - Establish a connection to the dedicated network server using the address and
• to receive from the dedicated network server, the location-dependent frequency information, for example, to query.

In this embodiment, the location of the household cooling device is already determined in particular by connecting to a specific dedicated network server. In particular, the dedicated network server is adapted to transmit the same location-dependent frequency information to all associated household refrigerators.

It is an embodiment that the household cooling device is set up to receive the address of the dedicated network server during a pairing process via a user terminal connected thereto, ie, a process of establishing connection between the household cooling device and the user terminal or a user account accessible via the user terminal (eg a "home connect" account). The pairing via the household refrigerator may thus include that the address of the dedicated network server from the user terminal (on which the address of the dedicated network server is stored) is transferable to the household refrigerator, as well as that a connection between the household refrigerator and the user account is made so that the address of the dedicated network server from the user account on the user terminal on the household refrigerator is transferable. This embodiment achieves the advantage that the reading frequency is usually set as early as when the household refrigerating appliance is first set up or put into operation. However, the determination of the location-dependent Frequency information is not limited to a first-time pairing process. Thus, in another embodiment, the address of the dedicated network server can be transferred to the household refrigerator via the user terminal each time a connection is established between these two devices.

It is an embodiment that the address of the dedicated network server in the user terminal is determined by an application program ("app") downloaded to the user terminal. This allows a particularly simple and user-friendly setting of the reading frequency. In particular, a user does not need to take any action to set the reading frequency. The application program can be, for example, a program provided for the remote-controlled control and / or monitoring of the household refrigerator and / or its contents.

It is an embodiment that the address of the dedicated network server is determined by a choice of a digital distribution platform ("App Store" or the like) for downloading the application program. This exploits the fact that digital distribution platforms are generally accessed as a function of location. Thus, it is often the case that digital distribution platforms offer customized application programs depending on a location of the user terminal used. If, for example, a user downloads an application program for operating the household refrigerator from a digital distribution platform, the application program can include, provide or (depending on the digital operating platform used) an individual address of the dedicated network server, depending on the location used (eg from a user account). which is then used by the household refrigerator to connect only to this dedicated network server.

• - ein Nutzer ein auf das Haushalts-Kühlgerät abgestimmtes Applikationsprogramm von einer standortabhängigen digitalen Vertriebsplattform auf ein Nutzerendgerät herunterlädt,
• - das Nutzerendgerät kommunikativ mit dem Haushalts-Kühlgerät gekoppelt wird, zum Beispiel während eines Pairing-Prozesses,
• - während einer Verbindung des Nutzerendgeräts mit dem Haushalts-Kühlgerät eine Adresse eines dedizierten Netzwerk-Servers, welche durch das Applikationsprogramm festgelegt ist, auf das Haushalts-Kühlgerät übertragen wird,
• - das Haushalts-Kühlgerät dann selbsttätig anhand der übertragenen Adresse eine Verbindung mit dem dedizierten Netzwerk-Server aufbaut,
• - von dem dedizierten Netzwerk-Server die standortabhängige Frequenzinformation an das Haushalts-Kühlgerät übertragen wird (beispielsweise ausgelöst durch eine Anfrage des Haushalts-Kühlgeräts) und
• - die Lesefrequenz der Identifizierungseinrichtung dann von dem Haushalts-Kühlgerät beruhend auf dem übertragenen Standort eingestellt wird.

This may in particular be implemented in such a way as to enable

• a user downloads an application program adapted to the household refrigerator from a location-dependent digital distribution platform to a user terminal,
• the user terminal is communicatively coupled to the household refrigerator, for example during a pairing process,
• during an connection of the user terminal to the household cooling device, an address of a dedicated network server, which is determined by the application program, is transferred to the household refrigerator,
• - the household cooling device then automatically establishes a connection with the dedicated network server based on the transmitted address,
• - The location-dependent frequency information is transmitted from the dedicated network server to the household refrigerator (for example, triggered by a request of the household refrigerator) and
• - The reading frequency of the identification device is then set by the household refrigerator based on the transferred location.

It is an additional or alternative embodiment that the external entity is a user terminal such as a smartphone, a tablet PC, etc. Since such user terminals can usually determine their location via GPS modules and / or WLAN modules, the use of the location of the user terminal as the location of the household refrigerator can approximate the location of the household refrigerator with high accuracy. It is particularly advantageous if the household cooling device can be connected to the user terminal via a wireless P2P direct connection since wireless P2P direct connections typically provide a short range (eg of less than 100 m) and thus a location of the household appliance. Cooling unit delivers by taking over the location of the user terminal via a wireless P2P direct connection particularly accurate result.

It is a further development that the household refrigerator is set up to display a certain location to a user for confirmation, e.g. via a display device of the household refrigerator, via a user terminal, etc.

• - das Haushalts-Kühlgerät eine seinem Standort zugeordnete Frequenzinformation ermittelt und
• - eine Lesefrequenz der Identifizierungseinrichtung beruhend auf der standortabhängigen Frequenzinformation eingestellt wird.

The object is also achieved by a method for operating a household refrigerator with at least one identification device for wirelessly identifying transponders in a cold room, in which

• - The household refrigerator determines its location associated frequency information and
• - Setting a read frequency of the identification device based on the location-dependent frequency information is set.

The method can be designed analogously to the household refrigerator and has the same advantages.

Thus, it is a development that the location-dependent frequency information of at least one communicatively coupled to the household cooling device external entity is transmitted to the household cooling device.

• - ein Nutzer ein auf das Haushalts-Kühlgerät abgestimmtes Applikationsprogramm von einer digitalen Vertriebsplattform auf ein Nutzerendgerät heruntergeladen hat,
• - das Nutzerendgerät kommunikativ mit dem Haushalts-Kühlgerät gekoppelt wird,
• - während einer Verbindung des Nutzerendgeräts mit dem Haushalts-Kühlgerät eine Adresse eines dedizierten Netzwerk-Servers, welche durch das Applikationsprogramm festgelegt ist, auf das Haushalts-Kühlgerät übertragen wird,
• - das Haushalts-Kühlgerät dann selbsttätig anhand der übertragenen Adresse eine Verbindung mit dem dedizierten Netzwerk-Server aufbaut,
• - von dem dedizierten Netzwerk-Server ein Standort an das Haushalts-Kühlgerät übertragen wird und
• - die Lesefrequenz der Identifizierungseinrichtung beruhend auf der standortabhängigen Frequenzinformation eingestellt wird.

Also, it is a continuing education that

• a user has downloaded an application program adapted to the household refrigerator from a digital distribution platform to a user terminal,
• the user terminal is communicatively coupled to the household refrigerator,
• during an connection of the user terminal to the household cooling device, an address of a dedicated network server, which is determined by the application program, is transferred to the household refrigerator,
• - the household cooling device then automatically establishes a connection with the dedicated network server based on the transmitted address,
• a location is transferred from the dedicated network server to the household refrigerator and
• - The reading frequency of the identification device is set based on the location-dependent frequency information.

The invention is illustrated in relation to a household refrigerator, in particular a household refrigerator with a freezer compartment. However, the invention can also be used in non-refrigerated stock management or warehouse management. In the household sector, the invention can be used in a storage furniture. A household refrigerator and storage furniture can then be coupled with one as a coupled system with a common administrative entity. This management instance can be implemented in one of the devices or externally. This administrative entity allows joint management of a stock of chilled and uncooled food.

The above-described characteristics, features and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more clearly understood in connection with the following schematic description of an embodiment which will be described in detail in conjunction with the drawings.

• 1 shows a sectional side view of a sketch of a household refrigerator with an RFID reader, the household refrigerator communicatively with an external unit e is coupled;
• 2 shows a flow chart for setting a read frequency of the RFID reader.

1 shows a sectional view in side view of a sketch of a household refrigerator 1 with a fridge 2 and a freezer 3 , The refrigerator 2 has a refrigerator 4 for receiving goods to be cooled G1 . G2 on. The fridge 4 is by means of a front door 5 closable.

At the fridge 2 (Here, for example, in the area of a ceiling of the refrigerator 4 ) is an RFID reader 6 present on a reading frequency fi Reading pulses in the fridge 4 can radiate. At the goods G1 and G2 existing RFID transponders T1 and T2 modulate the reading pulses and radiate them to the RFID reader 6 back. The RFID reader 6 can use an informational content of the modulation the goods G1 . G2 identify. The information content can also be referred to as a "code". The reading frequency of the RFID reader 6 is between several predetermined reading frequencies fi (i = 1, ..., n with n> = 2) selectable or switchable.

The refrigerator 2 also has a communication interface 7 (eg an Ethernet module, a WLAN module, a Bluetooth module, etc.) for communication with an external unit e on. The refrigerator 2 also has a control device 8th on that with the RFID reader 6 and the communication interface 7 coupled and this can control their operation. The RFID reader 6 can directly with the communication interface 7 communicate or can indirectly, for example via the control device 8th , with the communication interface 7 communicate.

The household refrigerator 1 is also set up to determine a location-dependent frequency information and the read frequency fi depending on the location-dependent frequency information to a value set at the location of the household refrigerator 1 for the RFID reader 6 is allowed.

This can be done by the household refrigerator 1 the location-dependent frequency information from the external unit e Interrogate.

In a first variant is the external unit e a user terminal such as a smartphone, a tablet PC, etc. The external unit e can with the household refrigerator 1 eg via a communication interface 7 be coupled in the form of a Bluetooth module. The location-dependent frequency information may include a location of the user terminal, which is a location for the household refrigerator 1 is taken over.

In a second variant is the external unit e a dedicated network server DS , The external unit e can with the household refrigerator 1 eg via a communication interface 7 be coupled in the form of an Ethernet module, a WLAN module, etc., in particular via the Internet. In particular, the network server may be next be connected to the household refrigerator network server and / or set up within a predetermined distance to the household refrigerator network server.

• - mit einem Nutzerendgerät, auf das zuvor ein zur Steuerung und/oder Überwachung des Haushalts-Kühlgeräts 1 und/oder seines Inhalts vorgesehenen Applikationsprogramm aus einer digitalen Vertriebsplattform heruntergeladen worden ist, zu koppeln, z.B. während eines Pairing-Prozesses,
• - von dem mit dem Haushalts-Kühlgerät 1 verbundenen Nutzerendgerät eine Adresse des dedizierten Netzwerk-Servers zu empfangen, die durch eine Wahl der digitalen Vertriebsplattform zum Herunterladen des Applikationsprogramms festgelegt ist,
• - anhand der Adresse eine Verbindung mit dem dedizierten Netzwerk-Server DS aufzubauen und
• - von dem dedizierten Netzwerk-Server DS die standortabhängige Frequenzinformation zu empfangen.

The household refrigerator 1 can then be set up

• - With a user terminal, on the previously one for controlling and / or monitoring of the household refrigerator 1 and / or its content application program has been downloaded from a digital distribution platform, eg during a pairing process,
• - of that with the household refrigerator 1 connected user terminal to receive an address of the dedicated network server, which is determined by a choice of the digital distribution platform for downloading the application program,
• - Use the address to connect to the dedicated network server DS to build up and
• - from the dedicated network server DS to receive the location-dependent frequency information.

2 shows a possible flow chart for setting the reading frequency fi of the RFID reader 6 ,

In one step S1 becomes an initializing operation of the household refrigerator 1 started, eg by means of a "power reset".

As part of a location-determining subroutine SR of the initialization process, the following is done in one step S2 first by means of the communication interface 7 a request for a location ("request country information") to the dedicated network server DS output. This is previously the communication interface 7 over the the household refrigerator 1 known address of the dedicated network server DS been connected with this. The address of the dedicated network server DS can already be in the household refrigerator 1 be deposited or - have been transmitted from a user terminal - for example, in the context of the location-determining subroutine SR.

step S2 can be repeated until a predetermined period has been reached or in one step S3 from the communication interface 7 the location or information about the location ("country setting"), for example in the form of a country code, has been received ("Receive country information").

After receiving the locale from the communication interface 7 in step S3 will be in a following step S4 the reading frequency fi of the RFID reader 6 to a reading frequency fi set in the country specified in the country setting, eg by means of the RFID reader 6 itself or by means of the control device 8th , Can in a certain country several of the given reading frequencies fi one of them can be selected, possibly taking into account other criteria.

In a variant, the communication interface 7 in one step S5 from the RFID reader 6 the in step S2 received request for country setting.

In one step S5 following step S6 asks the communication interface 7 from the dedicated network server DS the country setting off.

In one step S6 following optional step S7 is by means of the dedicated network server DS transmitted locale the location of the household refrigerator 1 in the communication interface 7 established.

In step S6 or optional in step S7 becomes the locale of the communication interface 7 to the RFID reader 6 Transfer this message as part of the step S3 receives.

Of course, the present invention is not limited to the embodiment shown.

Thus, instead of a regional setting, additionally or alternatively, at least one permitted reading frequency can be transmitted by the dedicated network server.

Also, instead of a network server as the external instance e Also, a user terminal such as a smartphone, etc. are queried. As a location-based feedback can be from the user terminal, for example, its geographical location or its country setting to the household refrigerator 1 be reported back.

LIST OF REFERENCE NUMBERS

1

Household refrigerator

2

fridge

3

freezer

4

refrigerator

5

door

6

RFID reader

7

Communication Interface

8th

control device

DS

Dedicated network server

e

External instance

fi

reading frequency

G1

Well

G2

Well

S1-S7

steps

T1

RFID transponder

T2

RFID transponder

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 1904902A [0003]
• CN 106203204 A [0004]

Claims (14)

Household cooling unit (1), comprising - One with goods to be cooled (G1, G2) chargeable refrigerator (4) and - At least one identification device (6) for wirelessly identifying transponders (T1, T2) in the cooling space (4), wherein - The identification device (6) between a plurality of predetermined reading frequencies (fi) is switchable and - The household refrigerator (1) is adapted to determine from a location of the household refrigerator (1) dependent frequency information and the read frequency (fi) of the identification device (6) in dependence on the determined location-dependent frequency information set. Household cooling unit (1) after Claim 1 wherein the household refrigerator (1) is adapted to set the reading frequency (fi) to a value permitted at the location for the at least one identifying means (6). Household refrigerating appliance (1) according to one of the preceding claims, wherein the at least one identification device (6) comprises at least one RFID reader and the adjustable read frequencies (fi) comprise a plurality of RFID read frequencies (fi). Domestic cooling appliance (1) according to any one of the preceding claims, comprising at least one communication interface (7) for communication with at least one external entity (E, DS), wherein the household cooling device (1) is adapted to the location-dependent frequency information by means of an external Instance (E, DS) to determine. Household cooling unit (1) after Claim 4 , wherein the household cooling device (1) with the external entity (E, DS) via a computer network, in particular the Internet, is connected. Household cooling unit (1) according to one of Claims 4 or 5 where the external instance (E) is a dedicated network server (DS). Household cooling unit (1) after Claim 6 wherein the household cooling device (1) is adapted to - receive an address of the dedicated network server (DS) from an associated user terminal, - establish a connection to the dedicated network server (DS) based on the address, and from the dedicated network server (DS) to receive the location-dependent frequency information. Household cooling unit (1) after Claim 7 wherein the household refrigerator (1) is adapted to receive, via a user terminal connected thereto, the address of the dedicated network server (DS) during a pairing process. Household cooling unit (1) according to one of Claims 7 or 8th wherein the address of the dedicated network server (DS) in the user terminal is determined by an application program downloaded to the user terminal. Household cooling unit (1) after Claim 10 wherein the address of the dedicated network server (DS) is determined by a choice of a digital distribution platform for downloading the application program. Household cooling unit (1) according to one of Claims 4 or 5 , wherein the external entity (E) is a user terminal. Household cooling device (1) according to any one of the preceding claims, wherein the identification means (6) is adapted to trigger a polling of the location-dependent frequency information during or after its initialization. Method (S1-S7) for operating a household refrigerating appliance (1) having at least one identification device (6) for wirelessly identifying transponders (T1, T2) in a cooling space (4), in which - The household cooling device (1) determines its location associated frequency information (S1-S3, S5-S7) and - a reading frequency (fi) of the identifying means (6) is set based on the location-dependent frequency information (S4). Method (S1-S7) after Claim 13 in which - a user has downloaded an application program tuned to the household cooling device (1) from a digital distribution platform to a user terminal, - the user terminal is communicatively coupled to the household cooling device (1), - while the user terminal is connected to the user terminal Household cooling device (1) an address of a dedicated network server (DS), which is determined by the application program is transferred to the household cooling device (1), - the household cooling device (1) then automatically on the basis of the transmitted address Establishes connection with the dedicated network server (DS), - the dedicated network server (DS) transmits location-dependent frequency information to the household refrigerator (1), and the reading frequency (fi) of the identifying means (6) is set based on the transmitted location-dependent frequency information.

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