Patent Publication Number: US-2023142856-A1

Title: Wireless power transmission apparatus, and method, performed by wireless power transmission apparatus, of identifying location of cooking appliance

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation application, under 35 USC § 111(a), of International Application No. PCT/KR2022/017140, filed on Nov. 3, 2022, which claims priority to Korean Patent Application No. 10-2021-0153728, filed on Nov. 10, 2021, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entirety. 
    
    
     BACKGROUND 
     1. Field 
     Embodiments of the disclosure relate to a wireless power transmission apparatus including a plurality of cooking zones, and a method, performed by a wireless power transmission apparatus, of identifying a location of a cooking zone in which a cooking appliance is placed. 
     2. Description of Related Art 
     Induction ranges are heating appliances for cooking using the principle of induction heating and are often called inductions. Compared to gas ranges, induction ranges do not consume oxygen and do not emit waste gas, and thus, indoor air pollution and indoor temperature rises may be reduced. In addition, induction ranges use an indirect method of inducing a to-be-heated object to generate heat by itself, and have high energy efficiency and stability. Because a contact surface is not heated even though the to-be-heated object generates heat by itself, the risk of burns is low, and accordingly, the demand for induction ranges has recently been increasing. 
     An induction range may include a plurality of burners. In this case, the induction range provides a separate operation button for each burner, and a user should check a burner on which a container is placed and use an operation button for a corresponding burner to cook. When the induction range includes many burners and various types of containers are placed on the induction range, a user&#39;s operations may be complicated, and the number of times the user uses the operation button to cook using the induction range may be increased. Therefore, it is necessary to minimize user manipulations of the induction range for user convenience. 
     SUMMARY 
     According to an embodiment of the disclosure, a wireless power transmission apparatus, comprising: a plurality of cooking zones, a communication interface configured to communicate with a cooking appliance; an output interface configured to display information regarding the cooking appliance; a wireless power transmitter including a plurality of working coils corresponding to the plurality of cooking zones, and an inverter circuit configured to drive the plurality of working coils; and at least one processor configured to: control, upon detecting a first wireless communication signal transmitted from the cooking appliance through the communication interface, the inverter circuit to drive the plurality of working coils to generate a magnetic field according to a plurality of power transmission patterns that are different; receive a second wireless communication signal from the cooking appliance through the communication interface, the second wireless communication signal including information regarding a cooking zone, among the plurality of cooking zones, corresponding to a power transmission pattern detected at a location of the cooking appliance, among the plurality of power transmission patterns, and identification information regarding the cooking appliance; and control the output interface to output, based on the second wireless communication signal, the information regarding the cooking zone at the location of the cooking appliance, among the plurality of cooking zones, and the identification information regarding the cooking appliance. 
     According to an embodiment of the disclosure, a method of identifying a location of a cooking appliance on a wireless power transmission apparatus, may include: detecting, by the wireless power transmission apparatus through a communication interface, a first wireless communication signal transmitted from the cooking appliance located on a top plate of the wireless power transmission apparatus, the wireless power communication apparatus having a plurality of cooking zones; controlling, upon detecting the first wireless communication signal , an inverter circuit to drive a plurality of working coils corresponding to the plurality of cooking zones to generate a magnetic field according to a plurality of power transmission patterns that are different; receiving a second wireless communication signal from the cooking appliance through the communication interface, the second wireless communication signal including information regarding the cooking zone corresponding to a power transmission pattern detected at a location of the cooking appliance, among the plurality of power transmission patterns, and identification information regarding the cooking appliance; and control the output interface to output, based on the second wireless communication signal, the information regarding the first cooking zone in which the cooking appliance is located, among the plurality of cooking zones, and the identification information regarding the cooking appliance. 
     According to an embodiment of the disclosure, a method, performed by a cooking appliance, of communicating with a wireless power transmission apparatus including a plurality of cooking zones may include: in response to receipt of a first level of power from the wireless power transmission apparatus, transmitting a first wireless communication signal through a communication interface; detecting a first power transmission pattern among a plurality of power transmission patterns transmitted from the wireless power transmission apparatus; identifying a first cooking zone corresponding to the first power transmission pattern among the plurality of cooking zones included in the wireless power transmission apparatus; and transmitting a second wireless communication signal to the wireless power transmission apparatus so that information regarding the first cooking zone and identification information regarding the cooking appliance are output through an output interface of the wireless power transmission apparatus, the second wireless communication signal including the information regarding the first cooking zone and the identification information regarding the cooking appliance. 
     According to an embodiment of the disclosure, a cooking appliance for communicating with a wireless power transmission apparatus including a plurality of cooking zones may include: a communication interface configured to communicate with the wireless power transmission apparatus; a lower-power coil configured to receive, from the wireless power transmission apparatus, a first level of power for driving the communication interface; and at least one processor, and the at least one processor of the cooking appliance may be configured to: when the first level of power is received from the wireless power transmission apparatus through the low-power coil, transmit a first wireless communication signal through the communication interface; detect a first power transmission pattern among a plurality of power transmission patterns transmitted from the wireless power transmission apparatus; identify a first cooking zone corresponding to the first power transmission pattern among the plurality of cooking zones included in the wireless power transmission apparatus; and transmit a second wireless communication signal to the wireless power transmission apparatus so that information regarding the first cooking zone and identification information regarding the cooking appliance are output through an output interface of the wireless power transmission apparatus, the second wireless communication signal including the information regarding the first cooking zone and the identification information regarding the cooking appliance. 
     According to an embodiment of the disclosure, the plurality of power transmission patterns may be set differently based on at least one of a duration of a power transmission interval, a duration of a power cut-off interval, or a power level. 
     According to an embodiment of the disclosure, the cooking appliance may further include a reception coil configured to receive a second level of power from the wireless power transmission apparatus, and the second level of power may be greater than the first level of power. 
     According to an embodiment of the disclosure, the cooking appliance may further include a temperature sensor configured to measure a temperature of contents, and the at least one processor of the cooking appliance may be configured to transmit information regarding the temperature of the contents measured by the temperature sensor to the wireless power transmission apparatus through the communication interface. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a diagram for describing a cooking system according to an embodiment of the disclosure. 
         FIGS.  2 A,  2 B, and  2 C  are diagrams for describing types of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  3    is a block diagram for describing a function of a heating apparatus (a wireless power transmission apparatus), according to an embodiment of the disclosure. 
         FIG.  4 A  is a block diagram for describing a function of a heating apparatus (a wireless power transmission apparatus), according to an embodiment of the disclosure. 
         FIG.  4 B  is a diagram for describing a wireless power transmitter of a heating apparatus (a wireless power transmission apparatus), according to an embodiment of the disclosure. 
         FIG.  5    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  6    is a diagram for describing power transmission patterns according to an embodiment of the disclosure. 
         FIG.  7    is a diagram for describing power transmission patterns according to an embodiment of the disclosure. 
         FIG.  8    is a flowchart for describing a method by which a heating apparatus outputs a notification to check a location of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  9    is a diagram for describing an operation in which a heating apparatus outputs a notification to check a location of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  10 A  is a flowchart for describing a method by which a heating apparatus detects a type of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  10 B  is a flowchart for describing a method by which a heating apparatus detects a type of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  11    is a diagram for describing an operation in which a heating apparatus detects a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  12    is a diagram for describing an operation performed by a heating apparatus when a first type of cooking appliance (a general induction-heating (IH) container) is placed on a heating apparatus, according to an embodiment of the disclosure. 
         FIG.  13    is a diagram for describing an operation performed by a heating apparatus when a second type of cooking appliance (a small appliance) is placed on a heating apparatus, according to an embodiment of the disclosure. 
         FIG.  14    is a diagram for describing an operation performed by a heating apparatus after a cooking appliance is removed from the heating apparatus, according to an embodiment of the disclosure. 
         FIG.  15    is a diagram for describing an operation in which a heating apparatus displays a notification after a cooking appliance is removed from the heating apparatus, according to an embodiment of the disclosure. 
         FIG.  16    is a flowchart for describing a method by which a heating apparatus provides a graphical user interface (GUI) according to identification information regarding a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  17    is a diagram for describing an operation in which a heating apparatus provides a GUI according to identification information regarding a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  18    is a diagram for describing an operation in which a heating apparatus displays identification information and location information regarding a plurality of cooking appliances, according to an embodiment of the disclosure. 
         FIG.  19    is a diagram for describing an operation in which a heating apparatus provides a GUI corresponding to identification information regarding a cooking appliance (a coffee machine), according to an embodiment of the disclosure. 
         FIG.  20    is a diagram for describing an operation in which a heating apparatus provides a GUI corresponding to identification information regarding a cooking appliance (a smart pot), according to an embodiment of the disclosure. 
         FIG.  21    is a flowchart for describing a method by which a heating apparatus determines a location of a cooking appliance, according to an embodiment of the disclosure. 
         FIG.  22    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance by using a near-field communication (NFC) tag included in the cooking appliance, according to an embodiment of the disclosure. 
         FIG.  23    is a flowchart for describing an operation in which a heating apparatus identifies a location of a cooking appliance by using an NFC tag included in the cooking appliance, according to an embodiment of the disclosure. 
         FIG.  24    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance by using NFC, according to an embodiment of the disclosure. 
         FIG.  25    is a flowchart for describing an operation in which a heating apparatus identifies a location of a cooking appliance by using NFC, according to an embodiment of the disclosure. 
         FIG.  26    is a diagram for describing an operation in which a heating apparatus is interlocked with a server apparatus, according to an embodiment of the disclosure. 
         FIGS.  27 A and  27 B  are diagrams for describing an operation in which a server apparatus provides information regarding a heating apparatus through a display apparatus, according to an embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, the terms used herein will be briefly described, and then, embodiments of the disclosure will be described in detail. 
     The terms used herein are those general terms currently widely used in the art in consideration of functions in regard to the embodiments of the disclosure, but the terms may vary according to the intention of those of ordinary skill in the art, precedents, or new technology in the art. In addition, in a specific case, the applicant voluntarily may select terms, and in this case, the meanings of the terms are disclosed in corresponding description parts of the embodiments of the disclosure. Thus, the terms used herein have to be defined based on the meanings of the terms together with the description throughout the disclosure. 
     Throughout the disclosure, the expression “at least one of a, b or c” indicates only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof. 
     Throughout the disclosure, when a certain part “includes” or “comprises” a certain component, unless there is a particular description contrary thereto, the part may further include or comprise other components, not excluding the other components. In addition, terms such as “ . . . er/or” and “module” used herein refer to units that perform at least one function or operation, and the units may be implemented as hardware or software or as a combination of hardware and software. 
     Embodiments of the disclosure will now be described in detail with reference to accompanying drawings to be readily practiced by those of ordinary skill in the art. The embodiments of the disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Also, in order to clearly describe the embodiments of the disclosure, parts not related to description are omitted in the drawings, and like reference numerals in the drawings denote like parts throughout the disclosure. 
     According to an embodiment of the disclosure, a method of identifying a cooking zone in which a cooking appliance is placed, by transmitting power according to different power transmission patterns for respective cooking zones, and a wireless power transmission apparatus therefor may be provided. 
     According to an embodiment of the disclosure, a method, performed by a wireless power transmission apparatus, of identifying a type of a cooking appliance placed on a top plate, and a wireless power transmission apparatus therefor may be provided. 
       FIG.  1    is a diagram for describing a cooking system according to an embodiment of the disclosure. 
     Referring to  FIG.  1   , according to an embodiment of the disclosure, a cooking system  100  may include a cooking appliance  1000  and a heating apparatus  2000 . Hereinafter, the heating apparatus  2000  may be referred to as a wireless power transmission apparatus. However, all of the illustrated components may not be essential components. The cooking system  100  may be implemented by more components than the illustrated components, or may be implemented by fewer components. For example, the cooking system  100  may be implemented with the cooking appliance  1000 , the heating apparatus  2000 , and a server apparatus (not shown). An embodiment in which the cooking system  100  includes the server apparatus will be described below in detail with reference to  FIG.  26   . Hereinafter, each component of the cooking system  100  is described. 
     The cooking appliance  1000  may be an apparatus for heating up contents inside the cooking appliance  1000 . The contents inside the cooking appliance  1000  may include liquids, such as water, tea, coffee, soup, juice, wine, and oil, or may include solids, such as butter, meat, vegetables, bread, and rice, but are not limited thereto. 
     According to an embodiment of the disclosure, the cooking appliance  1000  may wirelessly receive power from the heating apparatus  2000  by using electromagnetic induction. Therefore, according to an embodiment of the disclosure, the cooking appliance  1000  may not include a power line connected to a power outlet. 
     According to an embodiment of the disclosure, there may be various types of cooking appliances  1000  that wirelessly receive power from the heating apparatus  2000 . The cooking appliance  1000  may include a first type of cooking appliance  1000   a  (see  FIG.  2 A ), which is a general induction-heating (IH) container including a magnetic material, or may include a second type of cooking appliance  1000   b  (see  FIG.  2 A ) including a communication interface. Hereinafter, the second type of cooking appliance  1000   b  including the communication interface may be defined as a small appliance. Also, the second type of cooking appliance  1000   b  may include a second-first type of cooking appliance  1000   b - 1  including a magnetic material (an IH metal) (e.g., an iron component), and a second-second type of cooking appliance  1000   b - 2  including a reception coil. In the second-first type of cooking appliance  1000   b - 1 , a magnetic field may be induced in a container (an IH metal) itself, and in the second-second type of cooking appliance  1000   b - 2 , a magnetic field may be induced in the reception coil. Types of the cooking appliance  1000  will be described below in more detail with reference to  FIGS.  2 A to  2 C . 
     The cooking appliance  1000  may include a general IH container, such as a pot, a frying pan, and a steamer, or may include a small appliance, such as an electric kettle, a teapot, a coffee machine (or a coffee dripper), a toaster, a blender, an electric rice cooker, an oven, and an air fryer, but is not limited thereto. The cooking appliance  1000  may include a cooker apparatus. The cooker apparatus may be an apparatus into or from which a general IH container may be inserted or detached. According to an embodiment of the disclosure, the cooker apparatus may be an apparatus capable of automatically cooking contents according to a recipe. The cooker apparatus may also be referred to as a pot, a rice cooker, or a steamer depending on an intended use thereof. For example, when an inner pot capable of cooking rice is inserted into the cooker apparatus, the cooker apparatus may be referred to as a rice cooker. Hereinafter, the cooker apparatus may be defined as a smart pan (or a smart pot). 
     According to an embodiment of the disclosure, when the cooking appliance  1000  is a small appliance including a communication interface, the cooking appliance  1000  may communicate with the heating apparatus  2000 . The communication interface may include a short-range wireless communication interface, a long-distance wireless communication interface, etc. The short-range wireless communication interface may include a Bluetooth communication interface, a Bluetooth low energy (BLE) communication interface, a near-field communication (NFC) interface, a wireless local area network (WLAN) (e.g., Wi-Fi) communication interface, a Zigbee communication interface, an infrared data association (IrDA) communication interface, a Wi-Fi direct (WFD) communication interface, an ultra-wideband (UWB) communication interface, an Ant+ communication interface, etc., but is not limited thereto. When a cooking appliance is remotely controlled by a server apparatus (not shown) in an Internet-of-things (IoT) environment, the long-distance wireless communication interface may be used to communicate with the server apparatus. The long-distance wireless communication interface may include the Internet, a computer network (e.g., a local area network (LAN) or a wide area network (WAN)), a mobile communication interface, etc. The mobile communication interface may include a 3rd-generation (3G) module, a 4G module, a 5G module, a long-term evolution (LTE) module, a narrowband (NB)-IoT module, an LTE-machine type communication (MTC) (LTE-M) module, etc., but is not limited thereto. 
     According to an embodiment of the disclosure, the cooking appliance  1000  may transmit identification information regarding the cooking appliance  1000  to the heating apparatus  2000  through the communication interface. The identification information regarding the cooking appliance  1000  is unique information for identifying the cooking appliance  1000  and may include a medium access control (MAC) address, a model name, device type information (e.g., an IH type ID, a heater type ID, or a motor type), manufacturer information (e.g., a manufacturer ID), a serial number, or manufacture date information (e.g., date of manufacture), but is not limited thereto. According to an embodiment of the disclosure, the identification information regarding the cooking appliance  1000  may be expressed as a series of identification numbers or a combination of numbers and alphabets. Also, according to an embodiment of the disclosure, the cooking appliance  1000  may transmit location information regarding the cooking appliance  1000  to the heating apparatus  2000  through the communication interface. The location information regarding the cooking appliance  1000  may include information regarding a cooking zone (also referred to as a burner) in which the cooking appliance  1000  is located. 
     According to an embodiment of the disclosure, the cooking appliance  1000  may transmit information to the server apparatus through the heating apparatus  2000 . For example, the cooking appliance  1000  may transmit information (e.g., temperature information regarding contents) obtained from the cooking appliance  1000  to the heating apparatus  2000  through short-range wireless communication (e.g., Bluetooth or BLE). In this case, the heating apparatus  2000  may access the server apparatus by using the WLAN (Wi-Fi) communication interface or the long-distance wireless communication interface (e.g., the Internet), and may transmit the information obtained from the cooking appliance  1000  to the server apparatus. Moreover, the server apparatus may provide the information obtained from the cooking appliance  1000 , received from the heating apparatus  2000 , to a user through a mobile terminal connected to the server apparatus. According to another embodiment of the disclosure, the heating apparatus  2000  may also directly transmit the information obtained from the cooking appliance  1000  to a user&#39;s mobile terminal through device-to-device (D2D) communication (e.g., WFD communication or BLE communication). 
     According to an embodiment of the disclosure, the cooking appliance  1000  may also directly transmit the information (e.g., the temperature information regarding contents) obtained from the cooking appliance  1000  to the server apparatus through the communication interface (e.g., the WLAN (Wi-Fi) communication interface). Also, the cooking appliance  1000  may directly transmit the information (e.g., the temperature information regarding contents) obtained from the cooking appliance  1000  to the user&#39;s mobile terminal through short-range wireless communication (e.g., Bluetooth or BLE) or D2D communication (e.g., WFD communication). 
     According to an embodiment of the disclosure, the heating apparatus  2000  may be an apparatus that wirelessly transmits power to a to-be-heated object (e.g., the cooking appliance  1000 ) located on a top plate by using electromagnetic induction. The heating apparatus  2000  may also be referred to as an induction range or an electric range. The heating apparatus  2000  may include a working coil that generates a magnetic field for inductively heating the cooking appliance  1000 . When the cooking appliance  1000  is the second-second type of cooking appliance  1000   b - 2  including the reception coil, the working coil may be referred to as a transmission coil. 
     When power is wirelessly transmitted, it may mean that power is transmitted by using a magnetic field induced in a reception coil or an IH metal (e.g., an iron component) in a magnetic induction method. For example, the heating apparatus  2000  may cause a current to flow in the working coil (the transmission coil) to form a magnetic field, and thus may generate an eddy current in the cooking appliance  1000  or induce a magnetic field in the reception coil. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may include a plurality of working coils. For example, when the top plate of the heating apparatus  2000  includes a plurality of cooking zones, the heating apparatus  2000  may include a plurality of working coils respectively corresponding to the plurality of cooking zones. Also, the heating apparatus  2000  may include a high-power cooking zone in which a first working coil is provided inside thereof and a second working coil is provided outside thereof. The high-power cooking zone may include three or more working coils. 
     According to an embodiment of the disclosure, the top plate of the heating apparatus  2000  may include tempered glass, such as ceramic glass, so that the top plate is not easily damaged. Also, a guide mark may be provided on the top plate of the heating apparatus  2000  to guide a cooking zone in which the cooking appliance  1000  needs to be located. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may detect that the cooking appliance  1000  (e.g., the first type of cooking appliance  1000   a  or the second-first type of cooking appliance  1000   b - 1 ) including a magnetic material is placed on the top plate. For example, based on a change in a current value (inductance) of the working coil due to approach of the cooking appliance  1000 , the heating apparatus  2000  may detect that the cooking appliance  1000  is located on the top plate of the heating apparatus  2000 . Hereinafter, a mode in which the heating apparatus  2000  detects the cooking appliance  1000  including the magnetic material (an IH metal) is defined as an “IH container detection mode”. An operation in which the heating apparatus  2000  detects the cooking appliance  1000  including the magnetic material (an IH metal) will be described below in detail with reference to  FIG.  8   . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may include a communication interface for communicating with an external apparatus. For example, the heating apparatus  2000  may communicate with the cooking appliance  1000  or the server apparatus through the communication interface. The communication interface may include a short-range wireless communication interface (e.g., an NFC communication interface, a Bluetooth communication interface, a BLE communication interface, etc.) and a mobile communication interface. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may detect the cooking appliance  1000  located on the top plate through the communication interface. For example, the heating apparatus  2000  may detect the cooking appliance  1000  by receiving a packet transmitted from the cooking appliance  1000  located on the top plate by using short-range wireless communication (e.g., BLE or Bluetooth). Because the second type of cooking appliance  1000   b  including the communication interface may be defined as a small appliance (a small object), hereinafter, a mode in which the heating apparatus  2000  detects the cooking appliance  1000  through the communication interface is defined as a “small appliance detection mode”. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may receive, from the cooking appliance  1000 , the identification information regarding the cooking appliance  1000  by using short-range wireless communication (e.g., BLE communication or Bluetooth communication). In this case, the cooking appliance  1000  may be the second type of cooking appliance  1000   b  (a small appliance) including the communication interface. Also, when the heating apparatus  2000  outputs power according to different power transmission patterns for respective cooking zones, the heating apparatus  2000  may receive information regarding a first cooking zone corresponding to a first power transmission pattern detected by the cooking appliance  1000 , together with the identification information regarding the cooking appliance  1000 . In this case, the first cooking zone may be a cooking zone in which the cooking appliance  1000  is located, among the plurality of cooking zones included in the heating apparatus  2000 . Referring to  FIG.  1   , the first cooking zone may be a cooking zone in the lower left corner, in which the cooking appliance  1000  is located. A method by which the heating apparatus  2000  identifies a location of the cooking appliance  1000  by using a plurality of different power transmission patterns will be described below in detail with reference to  FIG.  5   . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may display information related to the cooking appliance  1000  through a user interface  2500 . For example, when the cooking appliance  1000  is detected, the heating apparatus  2000  may display, on a display unit included in the user interface  2500 , the identification information regarding the cooking appliance  1000  and the location information regarding the cooking appliance  1000 . Referring to  FIG.  1   , when a user places the cooking appliance  1000  (e.g., a coffee dripper) on the top plate of the heating apparatus  2000 , the heating apparatus  2000  may display a coffee dripper icon  10  on the display unit at a location corresponding to the cooking zone in the lower left corner and provide, to the user, the identification information (e.g., the coffee dripper) regarding the cooking appliance  1000  and the location information (e.g., being located in the cooking zone in the lower left corner) regarding the cooking appliance  1000 . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may also provide a graphical user interface (GUI) corresponding to the identification information regarding the cooking appliance  1000  through the user interface  2500 . For example, when the cooking appliance  1000  is a coffee dripper and an operation of the coffee dripper is completed, the heating apparatus  2000  may output text “Your coffee is ready. Have a great time!”. An operation in which the heating apparatus  2000  provides a GUI corresponding to the identification information regarding the cooking appliance  1000  will be described below in detail with reference to  FIGS.  16  to  20   . 
     According to the cooking system  100  according to an embodiment of the disclosure, even though a user simply places the cooking appliance  1000  on the heating apparatus  2000 , the heating apparatus  2000  may automatically identify the type of the cooking appliance  1000  and the location of the cooking appliance  1000  and provide an appropriate GUI to the user, such that user convenience is enhanced. Hereinafter, types of the cooking appliance  1000  according to an embodiment of the disclosure are described with reference to  FIGS.  2 A to  2 C . 
       FIGS.  2 A,  2 B, and  2 C  are diagrams for describing types of a cooking appliance, according to an embodiment of the disclosure. 
     Referring to  FIG.  2 A , the cooking appliance  1000  may include a first type of cooking appliance  1000   a , which is a general IH container including a magnetic material (e.g., an IH metal), and a second type of cooking appliance  1000   b  capable of communicating with the heating apparatus  2000 . The second type of cooking appliance  1000   b  capable of communicating with the heating apparatus  2000  may be defined as a small appliance. According to an embodiment of the disclosure, the second type of cooking appliance  1000   b  may be classified into a second-first type of cooking appliance  1000   b - 1  including an IH metal (e.g., an iron component), and a second-second type of cooking appliance  1000   b - 2  including a reception coil  1003 . Each type is now described. 
     The first type of cooking appliance  1000   a  may be inductively heated by the heating apparatus  2000  and may include various types of containers including a magnetic material. IH is a method of heating an IH metal by using electromagnetic induction. For example, when an alternating current (AC) is supplied to a working coil of the heating apparatus  2000 , a temporally changing magnetic field is induced inside the working coil. The magnetic field generated by the working coil passes through the bottom surface of the first type of cooking appliance  1000   a . When the temporarily changing magnetic field passes through the IH metal (e.g., iron, steel, nickel, or various types of alloys) included in the bottom surface of the first type of cooking appliance  1000   a , a current rotating around the magnetic field is generated in the IH metal. A rotating current is referred to as an eddy current, and a phenomenon in which a current is induced by a temporally changing magnetic field is referred to as electromagnetic induction. When the cooking appliance  1000  is the first type of cooking appliance  1000   a , heat is generated at the bottom surface of the first type of cooking appliance  1000   a  by resistance of the eddy current and the IH metal (e.g., iron). Contents inside the first type of cooking appliance may be heated by the generated heat. 
     The second type of cooking appliance  1000   b  may include a pickup coil  1001 , a power supply  1010 , a controller  1020 , and a communication interface  1030 . In this case, the power supply  1010 , the controller  1020 , and the communication interface  1030  may be mounted on a printed circuit board (PCB)  1005 . The pickup coil  1001  may be a low-power coil that generates power for operating the PCB  1005 . When power is supplied to the PCB  1005  through the pickup coil  1001 , components mounted on the PCB  1005  may be activated. For example, when power is supplied to the PCB  1005  through the pickup coil  1001 , the power supply  1010 , the controller  1020 , and the communication interface  1030  may be activated. 
     Referring to  FIG.  2 B , the second type of cooking appliance  1000   b  may further include a communication coil  1002 . The communication coil  1002  may be a coil for performing short-range wireless communication with the heating apparatus  2000 . For example, the communication coil  1002  may include an NFC antenna coil for NFC communication. In  FIG.  2 B , the number of windings of the communication coil  1002  is expressed as one, but the disclosure is not limited thereto. The communication coil  1002  may be provided with a plurality of windings. For example, the communication coil  1002  may be wound in 5 to 6 turns. An NFC circuit connected to the NFC antenna coil may receive power through the pickup coil  1001 . Hereinafter, the above components are described in order. 
     The power supply  1010  may include a switched mode power supply (SMPS) that receives AC power from the pickup coil  1001  and supplies direct current (DC) power to the controller  1020  or the communication interface  1030 . Also, when the controller  1020 , the communication interface  1030 , and other components in the second type of cooking appliance  1000   b  require AC power or DC power in forms other than commercial AC power, the power supply  1010  may include an inverter and/or a converter that supplies the AC power or the DC power. 
     The power supply  1010  may include a rectifier (a rectifying circuit) that converts AC power into DC power. The rectifier may convert an alternating voltage of which magnitude and polarity (a positive voltage or a negative voltage) change over time into a direct voltage with a constant magnitude and polarity, and may convert an AC of which magnitude and direction (a positive current or a negative current) change over time into a DC with a constant magnitude. The rectifier may include a bridge diode. The bridge diode may convert an alternating voltage of which polarity changes over time into a positive voltage with a constant polarity, and may convert an AC of which direction changes over time into a positive current with a constant direction. The rectifier may include a DC link capacitor. The DC link capacitor may convert a positive voltage of which magnitude changes over time into a direct voltage with a constant magnitude. The inverter connected to the DC link capacitor may generate AC power of various frequencies and magnitudes required by the second type of cooking appliance  1000   b , and the converter may generate DC power of various magnitudes required by the second type of cooking appliance  1000   b.    
     The controller  1020  may include at least one processor, and the at least one processor controls the overall operation of the second type of cooking appliance  1000   b . For example, the at least one processor included in the controller  1020  may control the power supply  1010  and the communication interface  1030 . 
     According to an embodiment of the disclosure, the controller  1020  may identify a current location of the second type of cooking appliance  1000   b  by detecting a power transmission pattern of power received from the heating apparatus  2000  through the power supply  1010 . For example, the controller  1020  may determine in which cooking zone the detected power transmission pattern is, by comparing the detected power transmission pattern with pre-stored power transmission patterns for respective cooking zones. In this case, the second type of cooking appliance  1000   b  may further include a voltage sensor for detecting the power transmission pattern. 
     The controller  1020  may control the communication interface  1030  to transmit or receive data. For example, the controller  1020  may control the communication interface  1030  to transmit, to the heating apparatus  2000 , at least one of identification information regarding the second type of cooking appliance  1000   b , location information regarding the second type of cooking appliance  1000   b , or communication connection information regarding the second type of cooking appliance  1000   b.    
     According to an embodiment of the disclosure, when the second type of cooking appliance  1000   b  includes a temperature sensor, the controller  1020  may also control the temperature sensor. For example, the controller  1020  may control the temperature sensor to measure a temperature of contents inside the second type of cooking appliance  1000   b  and to transmit a result of the measurement to the controller  1020 . Also, the controller  1020  may control the temperature sensor to monitor the temperature of the contents at a certain interval. In addition, the controller  1020  may control the communication interface  1030  to transmit temperature information regarding the contents to the heating apparatus  2000  through short-range wireless communication. 
     The communication interface  1030  may include one or more components that enable communication between the second type of cooking appliance  1000   b  and the heating apparatus  2000 , between the second type of cooking appliance  1000   b  and a server apparatus (not shown), and between the second type of cooking appliance  1000   b  and a mobile terminal (not shown). For example, the communication interface  1030  may include a short-range wireless communication interface, a long-distance wireless communication interface, etc. 
     The short-range wireless communication interface may include a Bluetooth communication interface, a BLE communication interface, an NFC interface, a WLAN (Wi-Fi) communication interface, a Zigbee communication interface, an IrDA communication interface, a WFD communication interface, an UWB communication interface, an Ant+ communication interface, etc., but is not limited thereto. When the second type of cooking appliance  1000   b  is remotely controlled by the server apparatus (not shown) in an IoT environment, the long-distance wireless communication interface may be used to communicate with the server apparatus. The long-distance wireless communication interface may include the Internet, a computer network (e.g., a LAN or a WAN), and a mobile communication interface. The mobile communication interface may include a 3G module, a 4G module, a 5G module, an LTE module, an NB-IoT module, an LTE-M module, etc., but is not limited thereto. 
     According to an embodiment of the disclosure, the second type of cooking appliance  1000   b  may transmit information to the server apparatus through the heating apparatus  2000 . For example, the second type of cooking appliance  1000   b  may transmit information (e.g., temperature information regarding contents) obtained from the second type of cooking appliance  1000   b  to the heating apparatus  2000  through short-range wireless communication (e.g., Bluetooth or BLE). In this case, the heating apparatus  2000  may access the server apparatus through the WLAN (Wi-Fi) communication interface or the long-distance wireless communication interface (the Internet), and may transmit the information (e.g., temperature information regarding contents) obtained from the second type of cooking appliance  1000   b  to the server apparatus. Moreover, the server apparatus may provide the information obtained from the second type of cooking appliance  1000   b , received from the heating apparatus  2000 , to a user through the mobile terminal connected to the server apparatus. According to another embodiment of the disclosure, the heating apparatus  2000  may also directly transmit the information obtained from the second type of cooking appliance  1000   b  to a user&#39;s mobile terminal through D2D communication (e.g., WFD communication or BLE communication). 
     Moreover, all of the components illustrated in  FIG.  2    may not be essential components. The second type of cooking appliance  1000   b  may be implemented by more components than the illustrated components, or may be implemented by fewer components. For example, the second type of cooking appliance  1000   b  may further include a sensor unit, a user interface, a memory, a battery, etc., in addition to the power supply  1010 , the controller  1020 , and the communication interface  1030 . In this case, the user interface may include an input interface that receives a user input, and an output interface that outputs information. The output interface is to output a video signal or an audio signal. The output interface may include a display unit, a sound output unit, a vibration motor, etc. When the display unit and a touch pad form a layered structure and constitute a touch screen, the display unit may also be used as the input interface in addition to the output interface. The sound output unit may output audio data received through the communication interface  1030  or stored in a memory (not shown). 
     According to an embodiment of the disclosure, when the second type of cooking appliance  1000   b  includes a battery, the battery may be used as auxiliary power. For example, when the second type of cooking appliance  1000   b  provides a keep warm function, even though power transmission from the heating apparatus  2000  is interrupted, the second type of cooking appliance  1000   b  may monitor the temperature of the contents by using power of the battery. When the temperature of the contents is lowered to a threshold temperature or below, the second type of cooking appliance  1000   b  may transmit a notification to the mobile terminal or request power transmission from the heating apparatus  2000  by using power of the battery. 
     Also, before the second type of cooking appliance  1000   b  receives power from the heating apparatus  2000 , the second type of cooking appliance  1000   b  may drive the communication interface  1030  and transmit a wireless communication signal to the heating apparatus  2000  by using power of the battery, and thus may allow the heating apparatus  2000  to identify the second type of cooking appliance  1000   b  in advance. The battery may include a secondary battery (e.g., a lithium ion battery, a nickel-cadmium battery, a polymer battery, and a nickel hydride battery), a supercapacitor, etc., but is not limited thereto. The supercapacitor is a capacitor with significantly large capacitance and is referred to as an ultra-capacitor or an ultra-high-capacity capacitor. 
     According to an embodiment of the disclosure, when the second type of cooking appliance  1000   b  includes a memory, the memory may store a program for processing and controlling the processor, and may store input/output data (e.g., power transmission pattern information for each cooking zone, and identification information regarding the second type of cooking appliance  1000   b ). 
     The memory may include at least one type of storage medium including a flash memory, a hard disk-type memory, a multimedia card micro-type memory, a card-type memory (e.g., a secure digital (SD) card or an extreme digital (XD) memory), random access memory (RAM), static RAM (SRAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), PROM, a magnetic memory, a magnetic disk, or an optical disc. Programs stored in the memory may be classified into a plurality of modules according to functions thereof. At least one artificial intelligence (AI) model may also be stored in the memory. 
     According to an embodiment of the disclosure, the second type of cooking appliance  1000   b  may include the second-first type of cooking appliance  1000   b - 1  including the IH metal (e.g., an iron component), and the second-second type of cooking appliance  1000   b - 2  including the reception coil  1003 . In the case of the second-first type of cooking appliance  1000   b - 1 , as in the first type of cooking appliance  1000   a , which is a general IH container, an eddy current is generated in the IH metal of the second-first type of cooking appliance  1000   b - 1 , and accordingly, contents inside the second-first type of cooking appliance  1000   b - 1  may be heated. The second-first type of cooking appliance  1000   b - 1  may include a smart kettle, an electric rice cooker (a smart pot), etc., but is not limited thereto. 
     The second-second type of cooking appliance  1000   b - 2  may further include more components, that is, the reception coil  1003  and a load  1004 , than the second-first type of cooking appliance  1000   b - 1 . The reception coil  1003  may be a coil that drives the load  1004  by receiving wireless power transmitted from the heating apparatus  2000 . For example, a magnetic field generated from a current flowing in a transmission coil (a working coil  2120  of  FIG.  4 A ) of the heating apparatus  2000  passes through the reception coil  1003 , and an induced current flows in the reception coil  1003 , such that energy (power) may be supplied to the load  1004 . Hereinafter, the induced current flowing in the reception coil  1003  by the magnetic field generated in the transmission coil (the working coil  2120 ) may be expressed as that the reception coil  1003  receives wireless power from the transmission coil (the working coil  2120 ). According to an embodiment of the disclosure, the reception coil  1003  may have a concentric circle shape or an elliptical shape, but is not limited thereto. According to an embodiment of the disclosure, a plurality of reception coils  1003  may also be provided. For example, the second-second type of cooking appliance  1000   b - 2  may include a reception coil for a warming heater and a reception coil for a heating heater. In this case, the reception coil for the heating heater may drive the heating heater, and the reception coil for the warming heater may drive the warming heater. 
     According to an embodiment of the disclosure, in the second-second type of cooking appliance  1000   b - 2 , the pickup coil  1001 , the communication coil  1002 , and the reception coil  1003  may be arranged on the same layer. For example, referring to  FIG.  2 B , the communication coil  1002  may be arranged on the innermost side, the reception coil  1003  may be arranged in the middle, and the pickup coil  1001  may be arranged on the outermost side, but the disclosure is not limited thereto. Referring to  210  of  FIG.  2 C , the reception coil  1003  may be arranged on the innermost side, the pickup coil  1001  may be arranged in the middle, and the communication coil  1002  may be arranged on the outermost side. Also, referring to  220  of  FIG.  2 C , the reception coil  1003  may be arranged on the innermost side, the communication coil  1002  may be arranged in the middle, and the pickup coil  1001  may be arranged on the outermost side. In addition, although not shown, the coils may be arranged in the following order from the innermost side. 
     1) Pickup coil  1001 -Reception coil  1003 -Communication coil  1002   
     2) Pickup coil  1001 -Communication coil  1002 -Reception coil  1003   
     3) Communication coil  1002 -Pickup coil  1001 -Reception coil  1003   
     According to an embodiment of the disclosure, in the second-second type of cooking appliance  1000   b - 2 , the pickup coil  1001 , the communication coil  1002 , and the reception coil  1003  may also be arranged in a stacked structure. For example, referring to  230  of  FIG.  2 C , the pickup coil  1001  and the communication coil  1002 , which do not have many windings, form one layer, and the reception coil  1003  forms another layer, such that two layers may be stacked. 
     The load  1004  may include a heater, a motor, or a battery to be recharged, but is not limited thereto. The heater is to heat the contents inside the second-second type of cooking appliance  1000   b - 2 . A shape of the heater may vary, and a material (e.g., iron, stainless steel, copper, aluminum, Incoloy, and Incotel) of an external cover may also vary. According to an embodiment of the disclosure, the second-second type of cooking appliance  1000   b - 2  may also include a plurality of heaters. For example, the second-second type of cooking appliance  1000   b - 2  may include a warming heater and a heating heater. The warming heater and the heating heater may produce different levels of heating output. For example, a heating level of the warming heater may be lower than a heating level of the heating heater. 
     According to an embodiment of the disclosure, the second-second type of cooking appliance  1000   b - 2  may further include a resonance capacitor (not shown) between the reception coil  1003  and the load  1004 . In this case, a resonance value may be set differently according to an amount of power required by the load  1004 . Also, according to an embodiment of the disclosure, the second-second type of cooking appliance  1000   b - 2  may further include a switch unit (not shown) (e.g., a relay switch or a semiconductor switch) for turning on/off the operation of the load  1004 . 
     According to an embodiment of the disclosure, the second-second type of cooking appliance  1000   b - 2  may include a heater-applied product (e.g., a coffee machine (a coffee dripper) and a toaster), a motor-applied product (e.g., a blender), etc., but is not limited thereto. 
     According to an embodiment of the disclosure, because the first type of cooking appliance  1000   a  includes an IH metal, detection is possible in an IH container detection mode of the heating apparatus  2000 , but the first type of cooking appliance  1000   a  is unable to communicate with the heating apparatus  2000 , and thus, detection may not be possible in a small appliance detection mode of the heating apparatus  2000 . Because the second-first type of cooking appliance  1000   b - 1  includes an IH metal, detection is possible in the IH container detection mode of the heating apparatus  2000 , and the second-first type of cooking appliance  1000   b - 1  is also able to communicate with the heating apparatus  2000 , and thus, detection may be possible even in the small appliance detection mode of the heating apparatus  2000 . Because the second-second type of cooking appliance  1000   b - 2  does not include an IH metal, detection is not performed in the IH container detection mode of the heating apparatus  2000 , but the second-second type of cooking appliance  1000   b - 2  is able to communicate with the heating apparatus  2000 , and thus, detection may be possible in the small appliance detection mode of the heating apparatus  2000 . 
     Hereinafter, the heating apparatus  2000  for transmitting power to cooking appliances  1000   a  and  1000   b  is described in detail with reference to  FIGS.  3 ,  4 A, and  4 B . 
       FIGS.  3  and  4 A  are block diagrams for describing a function of a heating apparatus (a wireless power transmission apparatus), according to an embodiment of the disclosure. 
     As shown in  FIG.  3   , according to an embodiment of the disclosure, the heating apparatus  2000  may include a wireless power transmitter  2100 , a processor  2200 , a communication interface  2300 , and an output interface  2510 . However, all of the illustrated components may not be essential components. The heating apparatus  2000  may be implemented by more components than the illustrated components, or may be implemented by fewer components. As shown in  FIG.  4 A , according to an embodiment of the disclosure, the heating apparatus  2000  may include the wireless power transmitter  2100 , the processor  2200 , the communication interface  2300 , a sensor unit  2400 , the user interface  2500 , and a memory  2600 . 
     Hereinafter, the above components are described in order. 
     The wireless power transmitter  2100  may include a driver  2110  and the working coil  2120 , but is not limited thereto. The driver  2110  may receive power from an external power source and supply a current to the working coil  2120  in response to a driving control signal of the processor  2200 . The driver  2110  may include an electromagnetic interference (EMI) filter  2111 , a rectifier circuit  2112 , an inverter circuit  2113 , a distribution circuit  2114 , a current sensing circuit  2115 , and a driving processor  2116 , but is not limited thereto. 
     The EMI filter  2111  may block high-frequency noise included in AC power supplied from the external power source and pass an alternating voltage and an AC of a preset frequency (e.g., 50 Hz or 60 Hz). A fuse and a relay for blocking an overcurrent may be provided between the EMI filter  2111  and the external power source. The AC power from which high-frequency noise is filtered out by the EMI filter  2111  is supplied to the rectifier circuit  2112 . 
     The rectifier circuit  2112  may covert AC power into DC power. For example, the rectifier circuit  2112  may convert an alternating voltage of which magnitude and polarity (a positive voltage or a negative voltage) change over time into a direct voltage with a constant magnitude and polarity, and may convert an AC of which magnitude and direction (a positive current or a negative current) change over time into a DC with a constant magnitude. The rectifier circuit  2112  may include a bridge diode. For example, the rectifier circuit  2112  may include four diodes. The bridge diode may convert an alternating voltage of which polarity changes over time into a positive voltage with a constant polarity, and may convert an AC of which direction changes over time into a positive current with a constant direction. The rectifier circuit  2112  may include a DC link capacitor. The DC link capacitor may convert a positive voltage of which magnitude changes over time into a direct voltage with a constant magnitude. 
     The inverter circuit  2113  may include a switching circuit that supplies or blocks a driving current to the working coil  2120 , and a resonance circuit that generates resonance together with the working coil  2120 . The switching circuit may include a first switch and a second switch. The first switch and the second switch may be connected in series between a plus line and a minus line, which are output from the rectifier circuit  2112 . The first switch and the second switch may be turned on or off in response to a driving control signal of the driving processor  2116 . 
     The inverter circuit  2113  may control a current supplied to the working coil  2120 . For example, a magnitude and a direction of the current flowing in the working coil  2120  may be changed in response to turning on/off of the first switch and the second switch, which are included in the inverter circuit  2113 . In this case, an AC may be supplied to the working coil  2120 . An AC in the form of sine waves is supplied to the working coil  2120  in response to a switching operation of the first switch and the second switch. Also, as a switching interval of the first switch and the second switch is longer (e.g., as a switching frequency of the first switch and the second switch is smaller), the current supplied to the working coil  2120  may be increased, and the strength of a magnetic field (an output of the heating apparatus  2000 ) output from the working coil  2120  may be increased. 
     When the heating apparatus  2000  includes a plurality of working coils  2120 , the driver  2110  may include the distribution circuit  2114 . The distribution circuit  2114  may include a plurality of switches that pass or block a current supplied to the plurality of working coils  2120 , and the plurality of switches may be turned on or off in response to a distribution control signal of the driving processor  2116 . 
     The current sensing circuit  2115  may include a current sensor that measures a current output from the inverter circuit  2113 . The current sensor may transmit an electrical signal corresponding to a value of the measured current to the driving processor  2116 . 
     The driving processor  2116  may determine, based on an output strength (a power level) of the heating apparatus  2000 , a switching frequency (a turn-of/turn-off frequency) of the switching circuit included in the inverter circuit  2113 . The driving processor  2116  may generate a driving control signal for turning on/off the switching circuit according to the determined switching frequency. 
     The working coil  2120  may generate a magnetic field for heating the cooking appliance  1000 . For example, when a driving current is supplied to the working coil  2120 , a magnetic field may be induced around the working coil  2120 . When a current of which magnitude and direction change over time, i.e., an AC, is supplied to the working coil  2120 , a magnetic field of which magnitude and direction change over time may be induced around the working coil  2120 . The magnetic field around the working coil  2120  may pass through a top plate including tempered glass, and may reach the cooking appliance  1000  placed on the top plate. Due to the magnetic field of which magnitude and direction change over time, an eddy current rotating around the magnetic field may be generated in the cooking appliance  1000 , and electrical resistance heat may be generated in the cooking appliance  1000  due to the eddy current. The electrical resistance heat is heat generated in a resistor when a current flows therethrough, and is also referred to as Joule heat. The cooking appliance  1000  may be heated by the electrical resistance heat, and accordingly, contents inside the cooking appliance  1000  may be heated. In addition, when the cooking appliance  1000  is the second-second type of cooking appliance  1000   b - 2  including the reception coil  1003  (see  FIG.  2   ), a magnetic field around the working coil  2120  may be induced in the reception coil  1003 . 
     The processor  2200  controls the overall operation of the heating apparatus  2000 . The processor  2200  may control the wireless power transmitter  2100 , the communication interface  2300 , the sensor unit  2400 , the user interface  2500 , and the memory  2600  by executing programs stored in the memory  2600 . 
     According to an embodiment of the disclosure, an AI processor may be mounted in the heating apparatus  2000 . The AI processor may be manufactured into the form of an AI-only hardware chip or may be manufactured as a part of an existing general-purpose processor (e.g., a central processing unit (CPU) or an application processor) or a graphics-only processor (e.g., a graphics processing unit (GPU)) and mounted in the heating apparatus  2000 . 
     According to an embodiment of the disclosure, the processor  2200  may control the inverter circuit  2113  to supply power of a preset level to the cooking appliance  1000  to drive the communication interface  1030  of the cooking appliance  1000 , and when the communication interface  1030  of the cooking appliance  1000  is driven, may receive a first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 . 
     When the first wireless communication signal transmitted from the cooking appliance  1000  is detected, the processor  2200  may control the inverter circuit  2113  so that the plurality of working coils  2120  generate a magnetic field according to a plurality of different power transmission patterns. The plurality of power transmission patterns may be set differently from each other based on at least one of a duration of a power transmission interval, a duration of a power cut-off interval, or a power level. For example, the processor  2200  may control the inverter circuit  2113  to transmit power by differently combining, for respective cooking zones, the duration of the power transmission interval, the duration of the power cut-off interval, or the power level. 
     Also, the processor  2200  may receive, from the cooking appliance  1000 , through the communication interface  2300 , a second wireless communication signal including information regarding a first cooking zone corresponding to a first power transmission pattern detected at a location of the cooking appliance  1000 , among the plurality of power transmission patterns, and identification information regarding the cooking appliance  1000 , and may output, based on the second wireless communication signal, through the output interface  2510 , the information regarding the first cooking zone in which the cooking appliance  1000  is located, among a plurality of cooking zones, and the identification information regarding the cooking appliance  1000 . A method by which the heating apparatus  2000  identifies a cooking zone, in which the cooking appliance  1000  is located, by using a plurality of power transmission patterns will be described below in detail with reference to  FIG.  5   . 
     According to an embodiment of the disclosure, when the processor  2200  does not receive the first wireless communication signal from the cooking appliance  1000  within a certain time after detection that the cooking appliance  1000  is located on the top plate of the heating apparatus  2000 , the processor  2200  may identify the cooking appliance  1000  as a first type of cooking appliance  1000   a , which is a general IH container. In response to detection of the first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 , the processor  2200  may identify the cooking appliance  1000  as a second type of cooking appliance  1000   b  capable of performing communication. An operation in which the heating apparatus  2000  identifies the type of the cooking appliance  1000  will be described below in detail with reference to  FIGS.  10 A and  10 B . 
     According to an embodiment of the disclosure, the processor  2200  may control the inverter circuit  2113  to perform communication connection with the cooking appliance  1000  based on communication connection information included in the second wireless communication signal and to transmit first level of power (low power) for maintaining the communication connection with the cooking appliance  1000  to the pickup coil  1001  of the cooking appliance  1000 . Also, in response to receipt of an operation command for the cooking appliance  1000  from a user, the processor  2200  may control the inverter circuit  2113  to transmit, to the cooking appliance  1000 , second level of power (high power) for operating the cooking appliance  1000 . In this case, the first level of power is lower than the second level of power. 
     The communication interface  2300  may include one or more components to enable communication between the heating apparatus  2000  and the cooking appliance  1000  or between the heating apparatus  2000  and the server apparatus. For example, the communication interface  2300  may include a short-range wireless communication interface  2310  and a long-distance wireless communication interface  2320 . The short-range wireless communication interface  2310  may include a Bluetooth communication interface, a BLE communication interface, an NFC interface, a WLAN (Wi-Fi) communication interface, a Zigbee communication interface, an IrDA communication interface, a WFD communication interface, an UWB communication interface, an Ant+communication interface, etc., but is not limited thereto. When a cooking appliance is remotely controlled by a server apparatus (not shown) in an IoT environment, the long-distance wireless communication interface  2320  may be used to communicate with the server apparatus. The long-distance wireless communication interface may include the Internet, a computer network (e.g., a LAN or a WAN), and a mobile communication interface. The mobile communication interface transmits/receives wireless signals to/from at least one of a base station, an external terminal, or a server, through a mobile communication network. In this case, the wireless signals may include a sound call signal, a video call signal, or various types of data according to transmission/reception of text/multimedia messages. The mobile communication interface may include a 3G module, a 4G module, an LTE module, a 5G module, a 6G module, an NB-IoT module, an LTE-M module, etc., but is not limited thereto. 
     The sensor unit  2400  may include a container sensor  2410  and a temperature sensor  2420 , but is not limited thereto. 
     The container sensor  2410  may be a sensor that detects that the cooking appliance  1000  is placed on the top plate. For example, the container sensor  2410  may be implemented as a current sensor, but is not limited thereto. The container sensor  2410  may be implemented as at least one of a proximity sensor, a touch sensor, a weight sensor, a temperature sensor, an illuminance sensor, or a magnetic sensor. 
     The temperature sensor  2420  may detect a temperature of the cooking appliance  1000  placed on the top plate or a temperature of the top plate. The cooking appliance  1000  may be inductively heated by the working coil  2120  and may be overheated depending on a material thereof. Accordingly, the heating apparatus  2000  may detect the temperature of the cooking appliance  1000  placed on the top plate or the temperature of the top plate, and when the cooking appliance  1000  is overheated, may block the operation of the working coil  2120 . The temperature sensor  2420  may be mounted in the vicinity of the working coil  2120 . For example, the temperature sensor  2420  may be located at the center of the working coil  2120 . 
     According to an embodiment of the disclosure, the temperature sensor  2420  may include a thermistor of which electrical resistance value changes according to temperature. For example, the temperature sensor may include a negative temperature coefficient (NTC) temperature sensor, but is not limited thereto. The temperature sensor may also include a positive temperature coefficient (PTC) temperature sensor. 
     The user interface  2500  may include the output interface  2510  and an input interface  2520 . The output interface  2510  is to output an audio signal or a video signal, and may include a display unit and a sound output unit. 
     When the display unit and a touch pad form a layered structure and constitute a touch screen, the display unit may also be used as an input interface in addition to an output interface. The display unit may include at least one of a liquid crystal display, a thin film transistor-liquid crystal display, a light-emitting diode (LED), an organic light-emitting diode (OLED), a flexible display, a three-dimensional ( 3 D) display, or an electrophoretic display. In addition, the heating apparatus  2000  may include two or more display units according to an implementation type of the heating apparatus  2000 . 
     The sound output unit may output audio data received from the communication interface  2300  or stored in the memory  2600 . Also, the sound output unit may output a sound signal related to a function performed by the heating apparatus  2000 . The sound output unit may include a speaker, a buzzer, etc. 
     According to an embodiment of the disclosure, the output interface  2510  may display information regarding the cooking appliance  1000 . For example, the output interface  2510  may output a GUI corresponding to the identification information regarding the cooking appliance  1000 . An operation in which the heating apparatus  2000  outputs a GUI corresponding to the identification information regarding the cooking appliance  1000  will be described below in detail with reference to  FIGS.  16  to  20   . 
     According to an embodiment of the disclosure, when the processor  2200  does not receive information regarding a cooking zone, in which the cooking appliance  1000  is located, within a certain time after the inverter circuit  2113  is controlled so that the plurality of working coils  2120  generate a magnetic field according to the plurality of different power transmission patterns, the output interface  2510  may output a notification to check the location of the cooking appliance  1000 . Also, according to an embodiment of the disclosure, in response to release of the communication connection with the cooking appliance  1000 , the output interface  2510  may output a notification to check the location of the cooking appliance  1000 . 
     The input interface  2520  is to receive an input from a user. For example, the input interface  2520  may include at least one of a key pad, a dome switch, a touch pad (using a touch capacitance method, a pressure-resistive layer method, an infrared sensing method, a surface ultrasonic conductive method, an integral tension measuring method, a piezo effect method, etc.), a jog wheel, or a jog switch, but is not limited thereto. 
     The input interface  2520  may include a speech recognition module. For example, the heating apparatus  2000  may receive a speech signal, which is an analog signal, through a microphone and may convert a speech part into computer-readable text by using an automatic speech recognition (ASR) model. The heating apparatus  2000  may obtain a user&#39;s intention to speak by interpreting the converted text using a natural language understanding (NLU) model. In this case, the ASR model or the NLU model may be an AI model. The AI model may be processed by an AI-only processor designed in a hardware structure specialized for processing the AI model. The AI model may be created through learning. Creating the AI model through learning means that a basic AI model is trained using a plurality of pieces of training data by a learning algorithm such that a predefined operation rule or AI model set to perform a desired characteristic (or purpose) is created. The AI model may include a plurality of neural network layers. Each of the plurality of neural network layers has a plurality of weight values, and may perform a neural network operation using an operation result of a previous layer and an operation between the plurality of weight values. 
     Linguistic understanding is a technique that identifies and applies/processes human language/characters, and includes natural language processing, machine translation, a dialog system, question answering, speech recognition/synthesis, etc. 
     The memory  2600  may store a program for processing and controlling the processor  2200  or may store pieces of input/output data (e.g., a plurality of power transmission patterns). The memory  2600  may also store an AI model. 
     The memory  2600  may include at least one type of storage medium including a flash memory, a hard disk-type memory, a multimedia card micro-type memory, a card-type memory (e.g., an SD or XD memory), RAM, SRAM, ROM, EEPROM, PROM, a magnetic memory, a magnetic disk, or an optical disk. Also, the heating apparatus  2000  may operate a web storage or a cloud server that performs a storage function on the Internet. 
       FIG.  4 B  is a diagram for describing a wireless power transmitter of a heating apparatus (a wireless power transmission apparatus), according to an embodiment of the disclosure. 
     Referring to  FIG.  4 B , the heating apparatus  2000  may further include a communication coil  2001  on the same plane as a transmission coil (the working coil  2120 ). In this case, the communication coil  2001  may include an NFC antenna coil for NFC communication. In  FIG.  4 B , the number of windings of the communication coil  2001  is expressed as one, but the disclosure is not limited thereto. The communication coil  2001  may be provided with a plurality of windings. For example, the communication coil  2001  may be wound in 5 to 6 turns. 
     According to an embodiment of the disclosure, the communication coil  2001  included in the heating apparatus  2000  and the communication coil  1002  included in the cooking appliance  1000  may be arranged at locations corresponding to each other. For example, when the communication coil  2001  included in the heating apparatus  2000  is arranged at the center of each cooking zone, the communication coil  1002  included in the cooking appliance  1000  may be arranged at the bottom center of the cooking appliance  1000 . 
     Referring to  410  of  FIG.  4 B , when the second-first type of cooking appliance  1000   b - 1  is placed on the heating apparatus  2000 , the heating apparatus  2000  may supply power to the pickup coil  1001  through the transmission coil  2120 . Also, when the heating apparatus  2000  wirelessly transmits power through the transmission coil  2120 , an eddy current is generated in the second-first type of cooking appliance  1000   b - 1 , and accordingly, contents inside the second-first type of cooking appliance  1000   b - 1  may be heated. 
     Referring to  420  of  FIG.  4 B , when the second-second type of cooking appliance  1000   b - 2  is placed on the heating apparatus  2000 , the heating apparatus  2000  may supply power to the pickup coil  1001  through the transmission coil  2120 . Also, when the heating apparatus  2000  wirelessly transmits power through the transmission coil  2120 , an induced current flows in the reception coil  1003  of the second-second type of cooking appliance  1000   b - 2 , such that energy (power) may be supplied to the load  1004 . The load  1004  may include a motor or a heater, and the load  1004  may be arranged at a location spaced apart from the reception coil  1003 . For example, power generated by the induced current may drive a motor of a blender or may be supplied to a heater of a coffee dripper. 
     In  FIG.  4 B , a case in which the heating apparatus  2000  includes the communication coil  2001  has been described as an example, but when the cooking appliance  1000  does not include the communication coil  1002  (see  FIG.  2 A ), the heating apparatus  2000  may also not include the communication coil  2001 . 
     Hereinafter, a method by which the heating apparatus  2000  identifies the location of the cooking appliance  1000  placed on the top plate is described in detail with reference to  FIG.  5   . 
       FIG.  5    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance, according to an embodiment of the disclosure. 
     In operation S 510 , according to an embodiment of the disclosure, the heating apparatus  2000  may detect a first wireless communication signal transmitted from the cooking appliance  1000  located on the top plate of the heating apparatus  2000 , through the communication interface  2300  of the heating apparatus  2000 . 
     According to an embodiment of the disclosure, when the heating apparatus  2000  operates in the small appliance detection mode, the heating apparatus  2000  may transmit preset first level of power (e.g., about 100 W to about 300 W) to the cooking appliance  1000  to drive the communication interface  1030  of the cooking appliance  1000 . The small appliance detection mode is a mode for detecting the second type of cooking appliance  1000   b  capable of communicating with the heating apparatus  2000 . 
     When the communication interface  1030  of the cooking appliance  1000  is driven by the power transmitted from the heating apparatus  2000 , the cooking appliance  1000  may transmit the first wireless communication signal. For example, the cooking appliance  1000  may advertise the first wireless communication signal including a first packet at a certain interval by using short-range wireless communication (e.g., Bluetooth or BLE). The heating apparatus  2000  may receive the first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 . The first packet included in the first wireless communication signal may include identification information regarding the cooking appliance  1000 , but is not limited thereto. In addition, the first packet included in the first wireless communication signal may not include location information regarding the cooking appliance  1000  (e.g., information regarding a cooking zone in which the cooking appliance  1000  is currently located). 
     In operation S 520 , according to an embodiment of the disclosure, when the first wireless communication signal is detected, the heating apparatus  2000  may control the inverter circuit  2113  so that a plurality of working coils  2120  corresponding to a plurality of cooking zones generate a magnetic field according to a plurality of different power transmission patterns. 
     According to an embodiment of the disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance  1000  may not include the location information regarding the cooking appliance  1000 . In this case, the heating apparatus  2000  may not accurately identify on which cooking zone the cooking appliance  1000  is located. Accordingly, in order to identify the location of the cooking appliance  1000 , the heating apparatus  2000  may control the inverter circuit  2113  to output power according to different power transmission patterns for respective cooking zones. For example, when the heating apparatus  2000  includes three cooking zones, the heating apparatus  2000  may control the inverter circuit  2113  to output power according to a first power transmission pattern through a first working coil corresponding to a first cooking zone, output power according to a second power transmission pattern through a second working coil corresponding to a second cooking zone, and output power according to a third power transmission pattern through a third working coil corresponding to a third cooking zone. 
     The plurality of power transmission patterns may be set differently from each other based on at least one of a duration of a power transmission interval, a duration of a power cut-off interval, or a power level. Referring to  FIG.  6   , the plurality of power transmission patterns may be set differently from each other by a duration of a power transmission interval T 1  and a duration of a power cut-off interval T 2 . For example, in a first power transmission pattern  610  of the first cooking zone, a duration of the power transmission interval T 1  is 250 ms, and a duration of the power cut-off interval T 2  is 50 ms. That is, according to the first power transmission pattern  610 , a pattern in which power is transmitted for 250 ms and cut off for 50 ms may be repeated. In a second power transmission pattern  620  of the second cooking zone, a duration of the power transmission interval T 1  is 200 ms, and a duration of the power cut-off interval T 2  is 100 ms. That is, according to the second power transmission pattern  620 , a pattern in which power is transmitted for 200 ms and cut off for 100 ms may be repeated. 
     Therefore, according to an embodiment of the disclosure, when the heating apparatus  2000  operates in a mode (hereinafter, referred to as a cooking zone determination mode) for receiving the first wireless communication signal from the cooking appliance  1000  and determining a cooking zone in which the cooking appliance  1000  is located, the heating apparatus  2000  may control a first inverter circuit to, according to the first power transmission pattern  610 , supply an AC to the first working coil corresponding to the first cooking zone for 250 ms and cut off the supply of the AC for 50 ms, and may control a second inverter circuit to, according to the second power transmission pattern  620 , supply an AC to the second working coil corresponding to the second cooking zone for 200 ms and cut off the supply of the AC for 100 ms. 
     In this case, the cooking appliance  1000  may detect one of the plurality of power transmission patterns by analyzing a voltage output from the rectifier. For example, referring to  FIG.  6   , when the cooking appliance  1000  is located in the first cooking zone, the cooking appliance  1000  may analyze a first voltage  611  output from the rectifier and may detect the first power transmission pattern  610  in which the duration of the power transmission interval T 1  is 250 ms and the duration of the power cut-off interval T 2  is 50 ms. In addition, the cooking appliance  1000  may determine that the cooking appliance  1000  is located in the first cooking zone, by identifying that the cooking zone that outputs the first power transmission pattern  610  is the first cooking zone, based on pre-stored information regarding the plurality of power transmission patterns of the heating apparatus  2000 . Also, when the cooking appliance  1000  is located in the second cooking zone, the cooking appliance  1000  may analyze a second voltage  621  output from the rectifier and may detect the second power transmission pattern  620  in which the duration of the power transmission interval T 1  is 200 ms and the duration of the power cut-off interval T 2  is 100 ms. In addition, the cooking appliance  1000  may determine that the cooking appliance  1000  is located in the second cooking zone, by identifying that the cooking zone that outputs the second power transmission pattern  620  is the second cooking zone, based on the pre-stored information regarding the plurality of power transmission patterns of the heating apparatus  2000 . 
     According to an embodiment of the disclosure, the cooking appliance  1000  may also identify the cooking zone in which the cooking appliance  1000  is located, with only the duration of the power cut-off interval T 2 . For example, as a result of analyzing power output from the rectifier, when the duration of the power cut-off interval T 2  is 50 ms, the cooking appliance  1000  may determine that the cooking appliance  1000  is located on the first cooking zone that outputs the first power transmission pattern  610 , and when the duration of the power cut-off interval T 2  is 100 ms, the cooking appliance  1000  may determine that the cooking appliance  1000  is located on the second cooking zone. 
     According to an embodiment of the disclosure, the plurality of power transmission patterns may also be variously set based on the duration of the power transmission interval, the duration of the power cut-off interval, and the power level. Referring to  FIG.  7   , a first power transmission pattern  710  of the first cooking zone may be a pattern in which power is transmitted at a first level P 1  for 2 seconds and cut off for 2 seconds. A second power transmission pattern  720  may be a pattern in which power is transmitted at the first level P 1  for 2 seconds and cut off for 1 second. A third power transmission pattern  730  may be a pattern in which power is transmitted at the first level P 1  for 4 seconds, cut off for 1 second, transmitted again at the first level P 1  for 1 second, and then cut off for 1 second. A fourth power transmission pattern  740  may be a pattern in which power is transmitted at the first level P 1  for 2 seconds, cut off for 2 seconds, transmitted again at a second level P 2  for 2 seconds, and then cut off for 2 seconds. 
     According to an embodiment of the disclosure, power transmitted to the cooking appliance  1000  according to the plurality of power transmission patterns may be sufficient to drive the communication interface  1030  of the cooking appliance  1000 . Therefore, according to an embodiment of the disclosure, when the cooking appliance  1000  determines that the cooking appliance  1000  is located in the first cooking zone based on the first power transmission pattern, the cooking appliance  1000  may transmit a second wireless communication signal including information regarding the first cooking zone. For example, the cooking appliance  1000  may advertise a second packet including the information regarding the first cooking zone by using short-range wireless communication. 
     In operation S 530 , according to an embodiment of the disclosure, the heating apparatus  2000  may receive, from the cooking appliance  1000 , a second wireless communication signal including information regarding the first cooking zone corresponding to a first power transmission pattern detected at the location of the cooking appliance  1000 , among the plurality of power transmission patterns, and identification information regarding the cooking appliance  1000 . 
     For example, the heating apparatus  2000  may receive, from the cooking appliance  1000 , through short-range wireless communication, a second packet including information regarding the first cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . The information regarding the first cooking zone in which the cooking appliance  1000  is located may include identification information (e.g., a first burner or an upper left burner) indicating the first cooking zone among the plurality of cooking zones, and may also include coordinate information regarding the first cooking zone. The identification information regarding the cooking appliance  1000  is unique information for identifying the cooking appliance  1000  and may include a MAC address, a model name, device type information (e.g., an IH type ID, a heater type ID, or a motor type), manufacturer information (e.g., a manufacturer ID), a serial number, or a date of manufacture, but is not limited thereto. According to an embodiment of the disclosure, the identification information regarding the cooking appliance  1000  may be expressed as a series of identification numbers or a combination of numbers and alphabets. 
     In addition, the second packet included in the second wireless communication signal may further include communication connection information. When the cooking appliance  1000  has been previously paired with the heating apparatus  2000 , the communication connection information may include pairing information (e.g., an authentication key). ‘Pairing’ may refer to, for example, a procedure for verifying a password, identification information, security information, or authentication information designated for intercommunication connection between the cooking appliance  1000  and the heating apparatus  2000 , which support a Bluetooth function. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may identify which type of cooking appliance  1000  is located in which cooking zone by receiving, from the cooking appliance  1000 , the second wireless communication signal including the information regarding the first cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . 
     In addition, when a plurality of cooking appliances are located in a plurality of cooking zones, the heating apparatus  2000  may receive, from each cooking appliance, identification information and location information regarding each cooking appliance. For example, when a coffee machine is located in the first cooking zone, the heating apparatus  2000  may receive, from the coffee machine, information regarding the first cooking zone and identification information regarding the coffee machine, and when a toaster is located in the second cooking zone, the heating apparatus  2000  may receive, from the toaster, information regarding the second cooking zone and identification information regarding the toaster. In this case, the heating apparatus  2000  may identify that the coffee machine is located in the first cooking zone and the toaster is located in the second cooking zone. 
     In operation S 540 , according to an embodiment of the disclosure, the heating apparatus  2000  may output, based on the second wireless communication signal, information regarding the first cooking zone in which the cooking appliance  1000  is located (hereinafter, referred to as location information regarding the cooking appliance  1000 ), among the plurality of cooking zones, and the identification information regarding the cooking appliance  1000 . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may display the identification information regarding the cooking appliance  1000  on the display unit in text or an image. For example, the heating apparatus  2000  may display text indicating a name or a type of the cooking appliance  1000  or may display an icon image of the cooking appliance  1000 . According to another embodiment of the disclosure, the heating apparatus  2000  may also output the identification information regarding the cooking appliance  1000  by speech through the sound output unit. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may also display that the cooking appliance  1000  is located in the first cooking zone, by displaying the identification information regarding the cooking appliance  1000  on the GUI at a location displaying a power level of the first cooking zone. For example, when the cooking appliance  1000  is a smart pot and the smart pot is placed in a cooking zone in the lower left corner, the heating apparatus  2000  may display an icon image of the smart pot in the lower left corner of the GUI. According to another embodiment of the disclosure, the heating apparatus  2000  may also output the information (location information regarding the cooking appliance  1000 ) regarding the first cooking zone in which the cooking appliance  1000  is located by speech through the sound output unit. 
     In the case of a general induction range, a user needs to check a type of the cooking appliance  1000  and a location of a burner on which the cooking appliance  1000  is placed, and input the type of the cooking appliance  1000  through an operation interface for the burner, and then input a specific operation, and thus, user convenience is reduced. However, according to an embodiment of the disclosure, when the user places the cooking appliance  1000  on any cooking zone and presses a power button, the heating apparatus  2000  by itself identifies and displays identification information regarding the cooking appliance  1000  and the location of the cooking zone in which the cooking appliance  1000  is placed, and accordingly, user convenience is enhanced. Also, according to an embodiment of the disclosure, even when the user places the cooking appliance  1000  on the first cooking zone or moves the cooking appliance  1000  placed on the first cooking zone to the second cooking zone while the power is on, the heating apparatus  2000  by itself may identify and display the identification information regarding the cooking appliance  1000  and the location of the cooking zone in which the cooking appliance  1000  is placed. 
     Hereinafter, an operation in which the heating apparatus  2000  outputs a notification when the location information regarding the cooking appliance  1000  is not received while the heating apparatus  2000  operates in the cooking zone determination mode is described with reference to  FIG.  8   . 
       FIG.  8    is a flowchart for describing a method by which a heating apparatus outputs a notification to check a location of a cooking appliance, according to an embodiment of the disclosure. 
     In operation S 810 , according to an embodiment of the disclosure, the heating apparatus  2000  may transmit preset first level of power to the cooking appliance  1000  to detect a second type of cooking appliance  1000   b  (a small appliance) capable of performing communication. In this case, the heating apparatus  2000  may operate in the small appliance detection mode. The first level of power is power for driving the communication interface  1030  of the cooking appliance  1000  and may be, for example, about 100 W to about 300 W. 
     In operation S 820 , according to an embodiment of the disclosure, when the cooking appliance  1000  receives the first level of power from the heating apparatus  2000 , the cooking appliance  1000  may activate the communication interface  1030  and transmit a first wireless communication signal. For example, the cooking appliance  1000  may advertise the first wireless communication signal including a first packet at a certain interval by using short-range wireless communication (e.g., Bluetooth or BLE). 
     In operation S 830 , according to an embodiment of the disclosure, when the heating apparatus  2000  receives the first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 , the heating apparatus  2000  may transmit power through a plurality of cooking zones according to a plurality of different power transmission patterns. 
     According to an embodiment of the disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance  1000  may not include location information regarding the cooking appliance  1000 . In this case, the heating apparatus  2000  may not accurately identify on which cooking zone the cooking appliance  1000  is located. Accordingly, in order to identify the location of the cooking appliance  1000 , the heating apparatus  2000  may control the inverter circuit  2113  to output power according to different power transmission patterns for respective cooking zones. For example, when the heating apparatus  2000  includes three cooking zones, the heating apparatus  2000  may control the inverter circuit  2113  to output power according to a first power transmission pattern through a first working coil corresponding to a first cooking zone, output power according to a second power transmission pattern through a second working coil corresponding to a second cooking zone, and output power according to a third power transmission pattern through a third working coil corresponding to a third cooking zone. 
     According to an embodiment of the disclosure, when the second type of cooking appliance  1000   b  (a small appliance) is available only in some of the plurality of cooking zones, the heating apparatus  2000  may output power according to a specific power transmission pattern only in some cooking zones. For example, when the heating apparatus  2000  includes three cooking zones, but the second type of cooking appliance  1000   b  is available only in the first cooking zone and the third cooking zone, the heating apparatus  2000  may control the inverter circuit  2113  to output power according to the first power transmission pattern through the first working coil corresponding to the first cooking zone, output power according to the third power transmission pattern through the third working coil corresponding to the third cooking zone, and not to output power through the second working coil corresponding to the second cooking zone. 
     Because operation S 830  corresponds to operation S 520  of  FIG.  5   , this will not be described repeatedly. 
     In operation S 840 , according to an embodiment of the disclosure, the cooking appliance  1000  may transmit a second wireless communication signal including identification information regarding the cooking appliance  1000 . In this case, when the cooking appliance  1000  detects the specific power transmission pattern, the cooking appliance  1000  may transmit, to the heating apparatus  2000 , information regarding a cooking zone corresponding to the specific power transmission pattern as location information regarding the cooking appliance  1000 , together with the identification information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may advertise a second packet including the location information regarding the cooking appliance  1000  and the identification information regarding the cooking appliance  1000 . In contrast, when the cooking appliance  1000  does not detect the specific power transmission pattern, the cooking appliance  1000  may advertise, at a certain interval, a second packet that does not include the location information regarding the cooking appliance  1000  but only includes the identification information regarding the cooking appliance  1000 . 
     In operation S 850 , according to an embodiment of the disclosure, the heating apparatus  2000  may identify whether the second wireless communication signal includes the location information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may determine whether the second packet received from the cooking appliance  1000  includes information regarding a cooking zone in which the cooking appliance  1000  is located. 
     In operation S 860 , according to an embodiment of the disclosure, when the second wireless communication signal does not include the location information regarding the cooking appliance  1000 , the heating apparatus  2000  may output a notification to check the location of the cooking appliance  1000 . 
     When the heating apparatus  2000  receives the second wireless communication signal but the second wireless communication signal does not include the location information regarding the cooking appliance  1000 , it may be seen that, though the cooking appliance  1000  is the second type of cooking appliance  1000   b  (a small appliance) capable of performing communication, the cooking appliance  1000  is incorrectly placed and thus unable to detect the specific power transmission pattern. Accordingly, the heating apparatus  2000  may output a notification to check the location of the cooking appliance  1000 . For example, when an area in which the cooking appliance  1000  is placed overlaps a part of the first cooking zone, the cooking appliance  1000  may be unable to accurately detect the first power transmission pattern corresponding to the first cooking zone. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may display the notification to check the location of the cooking appliance  1000  on the display unit, or may output the notification by speech. After the heating apparatus  2000  outputs the notification to check the location of the cooking appliance  1000 , the heating apparatus  2000  may return to operation S 830  to transmit power again through the plurality of cooking zones according to the plurality of different power transmission patterns. 
     In operation S 870 , according to an embodiment of the disclosure, when the second wireless communication signal includes the location information regarding the cooking appliance  1000 , the heating apparatus  2000  may output information regarding the first cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may display that the cooking appliance  1000  is located in the first cooking zone, by displaying the identification information regarding the cooking appliance  1000  on the GUI in an area displaying a power level of the first cooking zone. Because operation S 870  corresponds to operation S 540  of  FIG.  5   , this will not be described repeatedly. 
     In operation S 880 , according to an embodiment of the disclosure, the heating apparatus  2000  may operate in a power transmission standby mode. For example, when the heating apparatus  2000  receives, from the cooking appliance  1000 , the second wireless communication signal including the information regarding the first cooking zone and the identification information regarding the cooking appliance  1000 , the heating apparatus  2000  may operate in the power transmission standby mode for transmitting power to the cooking appliance  1000  through the first cooking zone. 
     According to an embodiment of the disclosure, the power transmission standby mode may be a mode to stand by for a user input indicating power transmission to the cooking appliance  1000 . The user input indicating power transmission to the cooking appliance  1000  may include various types of inputs, such as an input for pressing an operation button, an input for selecting a menu, an input for adjusting temperature, an input for selecting a specific recipe, an input for selecting a power level, etc. 
     In addition, in the power transmission standby mode, the heating apparatus  2000  may continuously transmit, to the cooking appliance  1000 , the first level of power for maintaining driving of the communication interface  1030  of the cooking appliance  1000 . 
     Hereinafter, an operation in which the heating apparatus  2000  outputs a notification when the location information regarding the cooking appliance  1000  is not received while the heating apparatus  2000  operates in the cooking zone determination mode is described in a little more detail with reference to  FIG.  9   . 
       FIG.  9    is a diagram for describing an operation in which a heating apparatus outputs a notification to check a location of a cooking appliance, according to an embodiment of the disclosure. In  FIG.  9   , a case in which the cooking appliance  1000  is a smart pot capable of communicating with the heating apparatus  2000  is described as an example. 
     Referring to  910  of  FIG.  9   , in order to identify the location of the cooking appliance  1000 , the heating apparatus  2000  may output power according to different power transmission patterns for respective cooking zones. For example, the heating apparatus  2000  may output power according to a first power transmission pattern through a cooking zone in the upper left corner, output power according to a second power transmission pattern through a cooking zone in the lower left corner, and output power according to a third power transmission pattern through a cooking zone on the right side. 
     In this case, because the cooking appliance  1000  is located between the cooking zone in the upper left corner and the cooking zone on the right side, the cooking appliance  1000  may be unable to accurately detect the first power transmission pattern and the third power transmission pattern. In this case, the cooking appliance  1000  may advertise a second packet without inserting location information regarding the cooking appliance  1000 . 
     When the location information regarding the cooking appliance  1000  is not inserted into the second packet, the heating apparatus  2000  that has received the second packet may output, to a user, a notification to check the location of the cooking appliance  1000 . For example, the heating apparatus  2000  may output a notification  901  saying “Please check the location of the smart pan (or also referred to as the smart pot)”. 
     Referring to  920  of  FIG.  9   , after the user checks the notification  901 , the user may accurately place the cooking appliance  1000  in the cooking zone in the upper left corner. In this case, the cooking appliance  1000  may detect the first power transmission pattern by analyzing a voltage output from the rectifier. In addition, based on a plurality of pre-stored power transmission patterns of the heating apparatus  2000 , the cooking appliance  1000  may identify that a cooking zone that outputs the first power transmission pattern is the cooking zone in the upper left corner. 
     The cooking appliance  1000  may transmit, to the heating apparatus  2000 , location information indicating that the cooking appliance  1000  is located in the cooking zone in the upper left corner, together with identification information. In this case, the heating apparatus  2000  may display that the cooking appliance  1000  is located in the cooking zone in the upper left corner, by displaying an icon  902  indicating identification information regarding the cooking appliance  1000  in the upper left corner. Also, the heating apparatus  2000  may provide a GUI (e.g., “Please push the slider to navigate the menu”) corresponding to the identification information regarding the cooking appliance  1000 . 
       FIGS.  10 A and  10 B  are flowcharts for describing a method by which a heating apparatus detects a type of a cooking appliance, according to an embodiment of the disclosure. 
     In operation S 1001 , according to an embodiment of the disclosure, the heating apparatus  2000  may receive a user input. The user input may be an input for pressing a power button of the heating apparatus  2000 . 
     In operation S 1002 , according to an embodiment of the disclosure, in response to receipt of the user input, the heating apparatus  2000  may wirelessly transmit power for detecting an IH container including a magnetic material (an IH metal). In this case, the heating apparatus  2000  may operate in the IH container detection mode. For example, the heating apparatus  2000  may control the inverter circuit  2113  to transmit power for detecting the IH container to the cooking appliance  1000 . The heating apparatus  2000  may wirelessly transmit power at regular intervals. In this case, a power transmission interval may be changed according to system settings. 
     According to an embodiment of the disclosure, power output to detect the IH container may be a small amount of power that is less than a threshold value (e.g., 100 W). When the cooking appliance  1000  approaches the heating apparatus  2000 , a current value (inductance) of the working coil  2120  may be changed. Accordingly, in order to detect a change in the current value (inductance) of the working coil  2120 , the heating apparatus  2000  may control the inverter circuit  2113  to output power for detecting the cooking appliance  1000  through the working coil  2120  every preset time. 
     In operations S 1003  and S 1004 , the heating apparatus  2000  may monitor current values of a plurality of working coils and detect a cooking appliance  1000  including a magnetic material. For example, based on changes in the current values (inductances) of the plurality of working coils due to the approach of the cooking appliance  1000  including the magnetic material, the heating apparatus  2000  may determine whether the cooking appliance  1000  is located on the top plate of the heating apparatus  2000 . 
     An inductance of the working coil  2120  when the cooking appliance  1000  is located on the top plate of the heating apparatus  2000  is different from an inductance of the working coil  2120  when the cooking appliance  1000  is not located on the top plate of the heating apparatus  2000 . For example, a first inductance when the cooking appliance  1000  is located on the top plate is greater than a second inductance when the cooking appliance  1000  is not located on the top plate. The inductance of the working coil  2120  is proportional to the magnetic permeability of a medium in the vicinity (especially, at the center of a coil), and this is because, in general, the magnetic permeability of the cooking appliance  1000  is greater than the permeability of air. 
     Also, a magnitude of a first AC flowing through the working coil  2120  when the cooking appliance  1000  is located on the top plate is less than a magnitude of a second AC flowing through the working coil  2120  when the cooking appliance  1000  is not located on the top plate. Accordingly, the heating apparatus  2000  may detect that the cooking appliance  1000  is located on the top plate of the heating apparatus  2000 , by measuring a magnitude of an AC flowing through the working coil  2120  using the current sensor, and comparing the measured magnitude of the AC with a reference current magnitude. For example, when a measured current value is less than a reference current value, the heating apparatus  2000  may determine that the cooking appliance  1000  is located on the top plate of the heating apparatus  2000 . 
     In addition, according to another embodiment of the disclosure, the heating apparatus  2000  may detect the cooking appliance  1000  including the magnetic material, by measuring a frequency and a phase of the AC flowing through the working coil  2120 . 
     In operation S 1005 , after the heating apparatus  2000  detects the cooking appliance  1000  including the magnetic material, the heating apparatus  2000  may transmit preset first level of power to the cooking appliance  1000  to detect a second type of cooking appliance  1000   b  (a small appliance) capable of performing communication. In this case, the heating apparatus  2000  may operate in the small appliance detection mode. The first level of power is power for driving the communication interface  1030  of the cooking appliance  1000  and may be, for example, about 100 W to about 300 W. The heating apparatus  2000  may control the inverter circuit  2113  so that a current corresponding to the first level of power flows through the working coil  2120 . 
     According to an embodiment of the disclosure, the cooking appliance  1000  may receive the first level of power transmitted from the heating apparatus  2000  and supply power to the PCB  1005  through the pickup coil  1001 . In this case, the power supply  1010 , the controller  1020 , and the communication interface  1030  mounted on the PCB  1005  may be driven. 
     In operations S 1006  and S 1007 , when the heating apparatus  2000  does not receive the first wireless communication signal from the cooking appliance  1000  including the magnetic material, the heating apparatus  2000  may identify the cooking appliance  1000  as a first type of cooking appliance  1000   a . For example, when the heating apparatus  2000  does not receive the first wireless communication signal within a certain time after the first level of power is transmitted, the heating apparatus  2000  may identify the cooking appliance  1000  as a ‘general IH container (the first type of cooking appliance  1000   a ), which is detected in the IH container detection mode but not detected in the small appliance detection mode. 
     In operation S 1008 , when the cooking appliance  1000  is the first type of cooking appliance  1000   a , the heating apparatus  2000  may identify a cooking zone in which the first type of cooking appliance  1000   a  is located, based on the changes in the current values (inductances) of the plurality of working coils. For example, when a magnitude of an AC flowing through a first working coil among the plurality of working coils is less than the reference current magnitude, the heating apparatus  2000  may determine that the first type of cooking appliance  1000   a  is located in a first cooking zone corresponding to the first working coil. 
     In operation S 1009 , when the heating apparatus  2000  receives the first wireless communication signal from the cooking appliance  1000  including the magnetic material, the heating apparatus  2000  may identify the cooking appliance  1000  as a second-first type of cooking appliance  1000   b - 1 . For example, when the heating apparatus  2000  receives the first wireless communication signal within a certain time after the first level of power is transmitted, the heating apparatus  2000  may identify the cooking appliance  1000  as a ‘small appliance including an IH metal’, which is detected in both the IH container detection mode and the small appliance detection mode. 
     In operation S 1010 , even though the cooking appliance  1000  including the magnetic material is not detected, the heating apparatus  2000  may transmit preset first level of power to the cooking appliance  1000  to drive the communication interface  1030  of the cooking appliance  1000 . In this case, the heating apparatus  2000  may operate in the small appliance detection mode. The first level of power is power for driving the communication interface  1030  of the cooking appliance  1000  and may be, for example, about 100 W to about 300 W. 
     In operations S 1011  and  1012 , when the first wireless communication signal is received from the cooking appliance  1000 , the heating apparatus  2000  may identify the cooking appliance  1000  as a second-second type of cooking appliance  1000   b - 2 . For example, when the heating apparatus  2000  receives the first wireless communication signal within a certain time after the first level of power is transmitted, the heating apparatus  2000  may identify the cooking appliance  1000  as a ‘small appliance including an IH metal’, which is not detected in the IH container detection mode but is detected in the small appliance detection mode. 
     In operation S 1013 , when the first wireless communication signal is not received from the cooking appliance  1000 , the heating apparatus  2000  may output a notification that the cooking appliance  1000  is unusable or there is no cooking appliance  1000 . For example, when the heating apparatus  2000  does not receive the first wireless communication signal within a certain time after the first level of power is transmitted, there is no cooking appliance  1000  detected in both the IH container detection mode and the small appliance detection mode, and thus, the heating apparatus  2000  may output a notification that the cooking appliance  1000  is unusable or there is no cooking appliance  1000 . In this case, the notification may be display on the display unit or may be output by speech through the sound output unit. 
     According to an embodiment of the disclosure, referring to  1000 _ 1  of  FIG.  10 A , in operation S 1014 , when the cooking appliance  1000  is identified as a second type of cooking appliance  1000   b  (e.g., the second-first type of cooking appliance  1000   b - 1  or the second-second type of cooking appliance  1000   b - 2 ) capable of performing communication, the heating apparatus  2000  may operate in the cooking zone determination mode for determining a cooking zone in which the cooking appliance  1000  is located. 
     According to an embodiment of the disclosure, when the heating apparatus  2000  receives the first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 , in order to determine a cooking zone in which the cooking appliance  1000  is located, the heating apparatus  2000  may transmit power through a plurality of cooking zones according to a plurality of different power transmission patterns. For example, when the heating apparatus  2000  includes three cooking zones, the heating apparatus  2000  may control the first inverter circuit to output power according to a first power transmission pattern through a first working coil corresponding to a first cooking zone, control the second inverter circuit to output power according to a second power transmission pattern through a second working coil corresponding to a second cooking zone, and control a third inverter circuit to output power according to a third power transmission pattern through a third working coil corresponding to a third cooking zone. 
     When the cooking appliance  1000  detects a specific power transmission pattern among the plurality of power transmission patterns, the cooking appliance  1000  may transmit, to the heating apparatus  2000 , information regarding a cooking zone corresponding to the specific power transmission pattern, together with identification information regarding the cooking appliance  1000 . The heating apparatus  2000  may identify whether the second wireless communication signal includes location information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may determine whether a second packet received from the cooking appliance  1000  includes information regarding the cooking zone in which the cooking appliance  1000  is located. 
     Because operation S 1014  corresponds to operations S 830  to S 850 , this will not be described repeatedly. 
     In addition, according to another embodiment of the disclosure, referring to  1000 _ 2  of  FIG.  10 B , when the cooking appliance  1000  is identified as the second-second type of cooking appliance  1000   b - 2 , the heating apparatus  2000  may operate in the cooking zone determination mode (operation S 1014 ), and when the cooking appliance  1000  is identified as the second-first type of cooking appliance  1000   b - 1 , the operation in the cooking zone determination mode may be omitted. In operation S 1015 , when the cooking appliance  1000  is identified as the second-first type of cooking appliance  1000   b - 1 , the heating apparatus  2000  may identify a cooking zone in which the second-first type of cooking appliance  1000   b - 1  is located, based on the changes in the current values (inductances) of the plurality of working coils. For example, when a magnitude of an AC flowing through a second working coil among the plurality of working coils is less than the reference current magnitude, the heating apparatus  2000  may determine that the second-first type of cooking appliance  1000   b - 1  is located in a second cooking zone (a cooking zone in the lower left corner) corresponding to the second working coil. 
     In operation S 1016 , when the heating apparatus  2000  identifies, based on the changes in the current values (inductances) of the plurality of working coils, the cooking zone in which the second-first type of cooking appliance  1000   b - 1  is located, the heating apparatus  2000  may transmit, to the second-first type of cooking appliance  1000   b - 1 , information regarding the cooking zone in which the second-first type of cooking appliance  1000   b - 1  is located. For example, the heating apparatus  2000  may transmit, to the second-first type of cooking appliance  1000   b - 1 , information indicating that the second-first type of cooking appliance  1000   b - 1  is located in the second cooking zone (the cooking zone in the lower left corner), through short-range wireless communication. 
     That is, referring to  FIG.  10 B , when the heating apparatus  2000  detects a cooking appliance  1000  (e.g., the first type of cooking appliance  1000   a  or the second-first type of cooking appliance  1000   b - 1 ) including a magnetic material, the heating apparatus  2000  may identify a cooking zone in which the cooking appliance  1000  including the magnetic material is located, based on the changes in the current values of the plurality of working coils, and thus, an operation (the cooking zone determination mode) of outputting different power transmission patterns for respective cooking zones may be omitted. 
     In operation S 1017 , when the heating apparatus  2000  receives the information regarding the cooking zone in which the cooking appliance  1000  is located, from the cooking appliance  1000  (e.g., the second-first type of cooking appliance  1000   b - 1  or the second-second type of cooking appliance  1000   b - 2 ), the heating apparatus  2000  may output the information regarding the cooking zone in which the cooking appliance  1000  is located. Also, when the heating apparatus  2000  identifies the cooking zone in which the cooking appliance  1000  (e.g., the first type of cooking appliance  1000   a  or the second-first type of cooking appliance  1000   b - 1 ) is located, based on the changes in the current values (inductances) of the plurality of working coils, the heating apparatus  2000  may output the information regarding the cooking zone in which the cooking appliance  1000  is located. 
     According to an embodiment of the disclosure, when the cooking appliance  1000  is the first type of cooking appliance  1000   a , the heating apparatus  2000  may output information regarding a cooking zone in which the first type of cooking appliance  1000   a  is located, by displaying a power level of the cooking zone in which the first type of cooking appliance  1000   a  is located. 
     According to an embodiment of the disclosure, when the cooking appliance  1000  is the second type of cooking appliance  1000   b , the heating apparatus  2000  may output information regarding a cooking zone in which the second type of cooking appliance  1000   b  is located, by displaying an identification image (e.g., an icon image) of the second type of cooking appliance  1000   b  in an area displaying a power level of the cooking zone in which the second type of cooking appliance  1000   b  is located. 
     In operation S 1018 , the heating apparatus  2000  may receive an operation command for the cooking appliance  1000  from a user. The operation command for the cooking appliance  1000  may be a command that indicates the cooking appliance  1000  to perform an original function thereof. For example, when the cooking appliance  1000  is a coffee machine, the heating apparatus  2000  may receive a user command to start brewing coffee, and when the cooking appliance  1000  is a smart pot, the heating apparatus  2000  may also receive a command to automatically cook (e.g., porridge). Also, when the cooking appliance  1000  is a general IH container, the heating apparatus  2000  may receive a user command to start heating. 
     In operation S 1019 , the heating apparatus  2000  may transmit, to the cooking appliance  1000 , second level of power for operating the cooking appliance  1000  according to the operation command. For example, the heating apparatus  2000  may control the inverter circuit  2113  to apply an AC corresponding to the second level of power to the working coil  2120 . The second level of power may be power for driving a load (e.g., a heater or a motor) of the cooking appliance  1000  or heating contents inside the cooking appliance  1000 . The second level of power may be greater than 800 W, but is not limited thereto. 
     In addition, the first level of power (low power) is to drive the communication interface  1030  of the cooking appliance  1000  and may be lower than the second level of power (high power) for actually operating the cooking appliance  1000 . 
     Hereinafter, operations S 1002  to S 1004  may be defined as IH container detection operations, and operations S 1005 , S 1006 , and S 1009  to S 1012  may be defined as small appliance (small object) detection operations. The first type of cooking appliance  1000   a  and the second-first type of cooking appliance  1000   b - 1  each including the magnetic material may be detected by an IH container detection operation of the heating apparatus  2000 , and the second-first type of cooking appliance  1000   b - 1  and the second-second type of cooking appliance  1000   b - 2  each including the communication interface  1030  may be detected by a small appliance detection operation of the heating apparatus  2000 . Hereinafter, the IH container detection operation (hereinafter, also referred to as a pan detection operation) and the small appliance detection operation (hereinafter, also referred to as a small object detection operation) of the heating apparatus  2000  are described in a little more detail with reference to  FIGS.  11  to  14   . 
       FIG.  11    is a diagram for describing an operation in which a heating apparatus detects a cooking appliance, according to an embodiment of the disclosure. 
     Referring to  FIG.  11   , when a user turns on the heating apparatus  2000  while the cooking appliance  1000  is not placed on the heating apparatus  2000 , the heating apparatus  2000  may reset a system and perform an IH container detection operation (a pan detection operation) first, and then perform a small appliance detection operation (a small object detection operation). In this case, an interval in which the IH container detection operation is performed may be shorter than an interval in which the small appliance detection operation is performed. For example, the heating apparatus  2000  may perform the IH container detection operation once per second and perform the small appliance detection operation once every  3  seconds. 
     According to an embodiment of the disclosure, when the heating apparatus  2000  does not detect any cooking appliance  1000  by the IH container detection operation and the small appliance detection operation, the heating apparatus  2000  may output a notification “Cooking appliance is unusable or there is no cooking appliance”. 
       FIG.  12    is a diagram for describing an operation performed by a heating apparatus when a first type of cooking appliance (a general IH container) is placed on a heating apparatus, according to an embodiment of the disclosure. 
     Referring to  FIG.  12   , when a user turns on the heating apparatus  2000  while the first type of cooking appliance  1000   a  (a general IH container) is placed on the top plate, the heating apparatus  2000  may reset a system and perform an IH container detection operation (pan detection operation). In this case, because the first type of cooking appliance  1000   a  includes a magnetic material, the heating apparatus  2000  may identify that the first type of cooking appliance  1000   a  is located in a cooking zone in the upper left corner. In addition, the IH container detection operation (a pan detection operation) may be continuously maintained at a certain interval. 
     According to an embodiment of the disclosure, the heating apparatus  2000  may perform a small appliance detection operation (a small object detection operation). In this case, because the first type of cooking appliance  1000   a  does not include a communication interface, the heating apparatus  2000  may not receive a wireless communication signal from the first type of cooking appliance  1000   a . When the heating apparatus  2000  does not receive a wireless communication signal from the first type of cooking appliance  1000   a  for a certain time, the heating apparatus  2000  may no longer perform the small appliance detection operation (the small object detection operation) and may operate in the power transmission standby mode. 
     According to an embodiment of the disclosure, when an operation (e.g., selecting a heating start button or selecting a power level) for the first type of cooking appliance  1000   a  is input by a user while the heating apparatus  2000  operates in the power transmission standby mode, the heating apparatus  2000  may transmit power for heating contents inside the first type of cooking appliance  1000   a.    
       FIG.  13    is a diagram for describing an operation performed by a heating apparatus when a second type of cooking appliance (a small appliance) is placed on a heating apparatus, according to an embodiment of the disclosure. 
     Referring to  FIG.  13   , when a user turns on the heating apparatus  2000  while the second type of cooking appliance  1000   b  is placed on the top plate, the heating apparatus  2000  may reset a system and perform an IH container detection operation (a pan detection operation). In this case, when the second type of cooking appliance  1000   b  is the second-first type of cooking appliance  1000   b - 1  including a magnetic material, the heating apparatus  2000  may detect, by using the current sensor, that the second-first type of cooking appliance  1000   b - 1  is placed on the top plate. In addition, when the second type of cooking appliance  1000   b  is the second-second type of cooking appliance  1000   b - 2  including the reception coil  1003 , the heating apparatus  2000  may not detect, by using the current sensor, that the second-second type of cooking appliance  1000   b - 2  is placed on the top plate. 
     The heating apparatus  2000  may perform a small appliance detection operation (a small object detection operation) after the IH container detection operation. For example, the heating apparatus  2000  may transmit first level of power to the second type of cooking appliance  1000   b  to drive the communication interface  1030  of the second type of cooking appliance  1000   b  and may operate in a scan mode. When the cooking appliance  1000   b  receives the first level of power, the second type of cooking appliance  1000   b  may drive the communication interface  1030  and advertise a first packet. The heating apparatus  2000  operating in the scan mode may identify that the second type of cooking appliance  1000   b  is placed on the top plate, by receiving the first packet advertised by the second type of cooking appliance  1000   b.    
     However, when the first packet does not include information regarding a cooking zone in which the second type of cooking appliance  1000   b  is located, the heating apparatus  2000  may operate in the cooking zone determination mode to identify the location of the second type of cooking appliance  1000   b . For example, the heating apparatus  2000  may output (e.g., address) power according different power transmission patterns for respective cooking zones. In this case, because the second type of cooking appliance  1000   b  is placed on a cooking zone in the lower left corner, a specific power transmission pattern corresponding to the cooking zone in the lower left corner may be detected. The second type of cooking appliance  1000   b  may identify that the second type of cooking appliance  1000   b  is located in the cooking zone in the lower left corner, by comparing the specific power transmission pattern with a plurality of pre-stored power transmission patterns of the heating apparatus  2000 . In this case, the second type of cooking appliance  1000   b  may transmit (e.g., advertise), to the heating apparatus  2000 , a second packet including information that the second type of cooking appliance  1000   b  is located in the cooking zone in the lower left corner, and identification information. In this case, the second packet may further include communication connection information. 
     The heating apparatus  2000  may perform communication connection with the second type of cooking appliance  1000   b  based on the communication connection information included in the second packet. When the heating apparatus  2000  has been previously paired with the second type of cooking appliance  1000   b , the communication connection information may include pairing information. According to an embodiment of the disclosure, the heating apparatus  2000  may establish a short-range wireless communication channel (e.g., a Bluetooth communication channel or a BLE communication channel) with the second type of cooking appliance  1000   b . When the Bluetooth communication channel is established, it may refer to causing the second type of cooking appliance  1000   b  and the heating apparatus  2000  to be in a state in which data may be transmitted/received through a Bluetooth communication method. The BLE communication channel may be a non-connected virtual communication channel for transmitting/receiving advertising packets through mutual scanning between the second type of cooking appliance  1000   b  and the heating apparatus  2000 , or may be a connected communication channel in which a session is formed by a BLE connection request of the heating apparatus  2000 . 
     When the heating apparatus  2000  is connected to the second type of cooking appliance  1000   b  via communication, the heating apparatus  2000  may control the inverter circuit  2113  to transmit first level of power for maintaining the communication connection with the second type of cooking appliance  1000   b  to the pickup coil  1001  ( ) of the second type of cooking appliance  1000   b . In this case, when an operation command (e.g., start brewing coffee, start automatic cooking, heat, or keep warm) for the second type of cooking appliance  1000   b  is received from a user, the heating apparatus  2000  may control the inverter circuit  2113  to transmit, to the second type of cooking appliance  1000   b , second level of power for operating the second type of cooking appliance  1000   b . The second level of power may be power for driving a load (e.g., a heater, a motor, or a battery) of the second type of cooking appliance  1000   b.    
       FIG.  14    is a diagram for describing an operation performed by a heating apparatus after a cooking appliance is removed from the heating apparatus, according to an embodiment of the disclosure. 
     Referring to  FIG.  14   , while the heating apparatus  2000  transmits second level of power for operation of the second type of cooking appliance  1000   b , a user may remove the second type of cooking appliance  1000   b  from the top plate of the heating apparatus  2000 . In this case, the heating apparatus  2000  may detect that the cooking appliance  1000  is removed from the top plate of the second type of cooking appliance  1000   b , based on a change in a current value of the working coil  2120  detected by the current sensor and/or a change in a packet received from the communication interface  2300 . 
     When the second type of cooking appliance  1000   b  is removed from the top plate, the heating apparatus  2000  may perform an IH container detection operation (a pan detection operation) and a small appliance detection operation (a small object detection operation) at a certain interval. For example, the heating apparatus  2000  may perform the IH container detection operation once per second and perform the small appliance detection operation once every 3 seconds. 
     In addition, when the second type of cooking appliance  1000   b  is removed from the top plate, the heating apparatus  2000  may output a notification that the second type of cooking appliance  1000   b  is not detected. For example, referring to  1510  of  FIG.  15   , when a smart pot  1501  that is the second-first type of cooking appliance  1000   b - 1  is placed on the top plate and then removed, the heating apparatus  2000  may output a notification “Smart pot is not detected”. Referring to  1520  of  FIG.  15   , when a coffee machine  1502  (or a coffee dripper) that is the second-second type of cooking appliance  1000   b - 2  is placed on the top plate, the heating apparatus  2000  may output a notification “Coffee dripper is not detected”. 
       FIG.  16    is a flowchart for describing a method by which a heating apparatus provides a GUI according to identification information regarding a cooking appliance, according to an embodiment of the disclosure. 
     In operation S 1610 , according to an embodiment of the disclosure, the heating apparatus  2000  may receive a user input. The user input may be an input for pressing a power button of the heating apparatus  2000 , but is not limited thereto. 
     In operation S 1620 , according to an embodiment of the disclosure, the heating apparatus  2000  may perform an IH container detection operation and a small appliance detection operation. 
     For example, the heating apparatus  2000  may detect the first type of cooking appliance  1000   a  and the second-first type of cooking appliance  1000   b - 1  each including a magnetic material, by sensing a current value of a working coil after power for detecting an IH container is transmitted. Also, the heating apparatus  2000  may detect the second type of cooking appliance  1000   b  (e.g., the second-first type of cooking appliance  1000   b - 1  and the second-second type of cooking appliance  1000   b - 2 ) capable of performing communication, by transmitting power for driving the communication interface  1030  of the cooking appliance  1000  and detecting a wireless communication signal transmitted from the cooking appliance  1000 . In this case, the power for detecting the IH container may be less than the power for driving the communication interface  1030  of the cooking appliance  1000 . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may perform the IH container detection operation first and then perform the small appliance detection operation, or may perform the small appliance detection operation first and then perform the IH container detection operation. Also, the order of the operations may be determined by a user&#39;s selection. For example, when the user purchases the heating apparatus  2000  to mainly use the second type of cooking appliance  1000   b  (a small appliance) capable of performing communication, the user may set the heating apparatus  2000  to perform the small appliance detection operation first. The user may set the order of the IH container detection operation and the small appliance detection operation through the user interface  2500  of the heating apparatus  2000 , or may set the order of the IH container detection operation and the small appliance detection operation through a mobile terminal connected to the heating apparatus  2000  with the same account. 
     In operations S 1630  and S 1640 , when the cooking appliance  1000  located on the top plate may perform communication, the heating apparatus  2000  may identify the cooking appliance  1000  as the second type of cooking appliance  1000   b  (a small appliance). 
     In operation S 1650 , when the cooking appliance  1000  is identified as the second type of cooking appliance  1000   b , the heating apparatus  2000  may provide a GUI corresponding identification information regarding the second type of cooking appliance  1000   b  (a small appliance). Because the second type of cooking appliance  1000   b  may include various types of small appliances, such as a kettle, a toaster, an electric rice cooker, a coffee machine, or a blender, the heating apparatus  2000  may provide various types of GUIs corresponding to identification information regarding the small appliance. 
     In operations S 1630  and S 1660 , when the cooking appliance  1000  includes a magnetic material but is unable to perform communication, the heating apparatus  2000  may identify the cooking appliance  1000  located on the top plate of the heating apparatus  2000  as the first type of cooking appliance  1000   a  (a general IH container). 
     In operation S 1670 , when the cooking appliance  1000  is identified as the first type of cooking appliance  1000   a , the heating apparatus  2000  may provide a GUI corresponding to the general IH container. For example, the heating apparatus  2000  may display an initial power level on the display unit at a location corresponding to a cooking zone in which the first type of cooking appliance  1000   a  is located, without displaying identification information corresponding to the first type of cooking appliance  1000   a . Also, the heating apparatus  2000  may output a notification that the general IH container is detected. 
     In operation S 1680 , the heating apparatus  2000  may provide a GUI corresponding to the cooking appliance  1000  and operate in the power transmission standby mode. 
     According to an embodiment of the disclosure, the power transmission standby mode may be a mode to stand by for a user input indicating power transmission to the cooking appliance  1000 . The user input indicating power transmission to the cooking appliance  1000  may include various types of inputs, such as an input for pressing an operation button, an input for selecting a menu, an input for adjusting temperature, an input for selecting a specific recipe, an input for selecting a power level, etc. 
     In addition, when the cooking appliance  1000  is the second type of cooking appliance  1000   b , the heating apparatus  2000  may continuously transmit, to the cooking appliance  1000 , power for maintaining driving of the communication interface  1030  of the cooking appliance  1000  in the power transmission standby mode. 
     According to an embodiment of the disclosure, even though the user does not input the type of the cooking appliance  1000 , the heating apparatus  2000  may identify the type of the cooking appliance  1000  that wirelessly received power, by simultaneously performing the IH container detection operation and the small appliance detection operation. 
     Hereinafter, an operation in which the heating apparatus  2000  outputs a GUI is described with reference to  FIGS.  17  to  20   . 
       FIG.  17    is a diagram for describing an operation in which a heating apparatus provides a GUI according to identification information regarding a cooking appliance, according to an embodiment of the disclosure. 
     Referring to  1710  of  FIG.  17   , when the heating apparatus  2000  detects the first type of cooking appliance  1000   a  placed on the top plate, the heating apparatus  2000  may display, on the user interface  2500 , a location of the first type of cooking appliance  1000   a  and a power level  1701 . For example, when the first type of cooking appliance  1000   a  is placed in a first cooking zone (a cooking zone in the upper left corner), the heating apparatus  2000  may output that the first type of cooking appliance  1000   a  is placed in the first cooking zone (the cooking zone in the upper left corner), by displaying the power level  1701  (e.g., 9) on the user interface  2500  at a location (the upper left corner) corresponding to the first cooking zone. 
     Referring to  1720  of  FIG.  17   , when the heating apparatus  2000  detects the second type of cooking appliance  1000   b  placed on a second cooking zone (a cooking zone in the lower left corner), the heating apparatus  2000  may display location information and identification information regarding the second type of cooking appliance  1000   b  on the user interface  2500 . For example, when the second type of cooking appliance  1000   b  is a coffee machine, the heating apparatus  2000  may output that the coffee machine is located in the second cooking zone (the cooking zone in the lower left corner), by displaying an icon  1702  of the coffee machine at a location corresponding to the second cooking zone (the cooking zone in the lower left corner). Also, the heating apparatus  2000  may output a pre-stored notification (e.g., “Please connect to SmartThings to check out barista&#39;s coffee”) related to the coffee machine. 
       FIG.  18    is a diagram for describing an operation in which a heating apparatus displays identification information and location information regarding a plurality of cooking appliances, according to an embodiment of the disclosure. 
     Referring to  FIG.  18   , the heating apparatus  2000  may detect a plurality of cooking appliances placed on the top plate. For example, the heating apparatus  2000  may detect a coffee machine  1810  located in a second cooking zone (a cooking zone in the lower left corner) and a smart pot  1820  located in a third cooking zone (a cooking zone at the right center). In this case, the heating apparatus  2000  may receive, from the coffee machine  1810 , identification information and location information (e.g., information regarding the second cooking zone) regarding the coffee machine  1810  through a small appliance detection operation. Also, the heating apparatus  2000  may receive, from the smart pot  1820 , identification information and location information (e.g., information regarding the third cooking zone) regarding the smart pot  1820  through a small appliance detection operation. 
     When the coffee machine  1810  and the smart pot  1820  are detected, the heating apparatus  2000  may display, on the user interface  2500 , the identification information and the location information regarding the coffee machine  1810 , and the identification information and the location information regarding the smart pot  1820 . For example, the heating apparatus  2000  may display an icon  1801  indicating the coffee machine  1810  in the lower left corner of the display unit and may display an icon  1802  indicating the smart pot  1820  in the lower right corner of the display unit. 
       FIG.  19    is a diagram for describing an operation in which a heating apparatus provides a GUI corresponding to identification information regarding a cooking appliance, according to an embodiment of the disclosure. In  FIG.  19   , a case in which the cooking appliance  1000  is a coffee machine  1900  is described as an example. 
     Referring to  FIG.  19   , the heating apparatus  2000  may receive, from the coffee machine  1900  located in a cooking zone in the upper left corner, identification information and location information (e.g., information regarding a cooking zone in the upper left corner) regarding the coffee machine  1900  through a small appliance detection operation. In this case, the heating apparatus  2000  may display an icon indicating the coffee machine  1900  in the upper left corner of the display unit and may provide a GUI corresponding to the coffee machine  1900  to a user through the display unit. 
     For example, the heating apparatus  2000  may provide menu screens  1901 ,  1902 ,  1903 , and  1904  for selecting types of coffee (e.g., light, mild, balanced, rich, intense, coffee you made, barista&#39;s coffee, etc.), screens  1905 ,  1906 , and  1907  for selecting the number of coffee shots (e.g., one shot, two shots, three shots, etc.) and whether to soak coffee beans, a screen  1908  for selecting a specific barista, a screen  1909  for selecting a temperature, a screen  1910  indicating an operating state (e.g., brewing coffee, etc.), and screens  1911  and  1912  for outputting a notification (e.g., “You can use the setting for the coffee you just made in barista&#39;s coffee again”, “Your coffee is ready”, etc.). 
       FIG.  20    is a diagram for describing an operation in which a heating apparatus provides a GUI corresponding to identification information regarding a cooking appliance (smart pot), according to an embodiment of the disclosure. In  FIG.  20   , a case in which the cooking appliance  1000  is a smart pot  2010  (cooker apparatus) is described as an example. 
     Referring to  FIG.  20   , the heating apparatus  2000  may receive, from the smart pot  2010  located in a cooking zone in the lower left corner, identification information and location information (e.g., information regarding the cooking zone in lower left corner) regarding the smart pot  2010  through a small appliance detection operation. In this case, the heating apparatus  2000  may display an icon indicating the smart pot  2010  in the lower left corner of the display unit and may provide a GUI corresponding to the smart pot  2010  to a user through the display unit. 
     For example, the heating apparatus  2000  may provide menu screens  2011  and  2012  for selecting types of rice (e.g., white rice, multi-grain rice, etc.), menu screens  2013 ,  2014 , and  2015  for selecting dishes (e.g., abalone rice porridge, recent dishes, steamed pork ribs, etc.), a screen  2016  for providing recipe information (e.g., “Please put all ingredients in the cooker and cover the cooker with a lid”), and screens  2017  and  2018  for outputting a notification (e.g., “Your delicious dish is ready”, “You can view the recipe again in recent dishes”, etc.). According to an embodiment of the disclosure, the recipe information may be stored in a memory of the cooking appliance  1000  or may be stored in a server apparatus in which information regarding the cooking appliance  1000  is registered. 
     Hereinafter, an operation in which the heating apparatus  2000  receives information regarding a power transmission pattern detected by the cooking appliance  1000  instead of receiving location information regarding the cooking appliance  1000  from the cooking appliance  1000  is described with reference to  FIG.  21   . 
       FIG.  21    is a flowchart for describing a method by which a heating apparatus determines a location of a cooking appliance, according to an embodiment of the disclosure. 
     In operation S 2101 , the heating apparatus  2000  may transmit preset first level of power to the cooking appliance  1000  to drive the communication interface  1030  of the cooking appliance  1000 . In this case, the heating apparatus  2000  may operate in the small appliance detection mode. The first level of power is power for driving the communication interface  1030  of the cooking appliance  1000  and may be, for example, about 100 W to about 300 W. 
     In operation S 2102 , according to an embodiment of the disclosure, when the cooking appliance  1000  receives the first level of power from the heating apparatus  2000 , the cooking appliance  1000  may activate the communication interface  1030  and transmit a first wireless communication signal. For example, the cooking appliance  1000  may advertise the first wireless communication signal including a first packet at a certain interval by using short-range wireless communication (e.g., Bluetooth or BLE). 
     In operation S 2103 , according to an embodiment of the disclosure, when the heating apparatus  2000  receives the first wireless communication signal transmitted from the communication interface  1030  of the cooking appliance  1000 , the heating apparatus  2000  may transmit power through a plurality of cooking zones according to a plurality of different power transmission patterns. 
     According to an embodiment of the disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance  1000  may not include location information regarding the cooking appliance  1000 . In this case, the heating apparatus  2000  may not accurately identify on which cooking zone the cooking appliance  1000  is located. Accordingly, in order to identify the location of the cooking appliance  1000 , the heating apparatus  2000  may control the inverter circuit  2113  to output power according to different power transmission patterns for respective cooking zones. For example, when the heating apparatus  2000  includes three cooking zones, the heating apparatus  2000  may control the inverter circuit  2113  to output power according to a first power transmission pattern through a first working coil corresponding to a first cooking zone, output power according to a second power transmission pattern through a second working coil corresponding to a second cooking zone, and output power according to a third power transmission pattern through a third working coil corresponding to a third cooking zone. Because operation S 2103  corresponds to operation S 520  of  FIG.  5   , this will not be described repeatedly. 
     In operation S 2104 , according to an embodiment of the disclosure, the cooking appliance  1000  may detect the first power transmission pattern. According to an embodiment of the disclosure, the cooking appliance  1000  may detect one of the plurality of power transmission patterns by analyzing a voltage output from the rectifier. For example, when the cooking appliance  1000  is located in the first cooking zone, the cooking appliance  1000  may analyze a first voltage output from the rectifier and may detect the first power transmission pattern in which a duration of the power transmission interval T 1  is 250 ms and a duration of the power cut-off interval T 2  is 50 ms. 
     In operation S 2105 , according to an embodiment of the disclosure, the cooking appliance  1000  may transmit a second wireless communication signal including information regarding the first power transmission pattern and identification information regarding the cooking appliance  1000 . 
     The information regarding the first power transmission pattern may include at least one of an identification value of the first power transmission pattern, a duration of a power transmission interval (or high power transmission interval), a duration of a power cut-off interval (or low power transmission interval), or a power level, but is not limited thereto. The identification information regarding the cooking appliance  1000  is unique information for identifying the cooking appliance  1000  and may include a MAC address, a model name, device type information (e.g., an IH type ID, a heater type ID, or a motor type), manufacturer information (e.g., a manufacturer ID), a serial number, or a date of manufacture, but is not limited thereto. 
     In operation S 2106 , according to an embodiment of the disclosure, the heating apparatus  2000  may determine, based on the second wireless communication signal, the first cooking zone corresponding to the first power transmission pattern as the location of the cooking appliance  1000 . For example, the heating apparatus  2000  may identify the first cooking zone corresponding to the second power transmission pattern by identifying the information regarding the first power transmission pattern, included in the second wireless communication signal, and comparing the first power transmission pattern with information regarding a plurality of pre-stored power transmission patterns. In this case, the heating apparatus  2000  may determine that the cooking appliance  1000  having detected the first power transmission pattern is located in the first cooking zone. 
     According to an embodiment of the disclosure, when the second wireless communication signal does not include information regarding a specific power transmission pattern, the heating apparatus  2000  may output a notification to check the location of the cooking appliance  1000 . For example, when the heating apparatus  2000  receives the second wireless communication signal, but the second wireless communication signal does not include the information regarding the specific power transmission pattern, it may be seen that, though the cooking appliance  1000  is the second type of cooking appliance  1000   b  (a small appliance) capable of performing communication, the cooking appliance  1000  is incorrectly placed and thus does not detect the specific power transmission pattern. Accordingly, the heating apparatus  2000  may output a notification to check the location of the cooking appliance  1000 . 
     According to an embodiment of the disclosure, the heating apparatus  2000  may display the notification to check the location of the cooking appliance  1000  on the display unit, or may output the notification by speech. After the heating apparatus  2000  outputs the notification to check the location of the cooking appliance  1000 , the heating apparatus  2000  may transmit power again through the plurality of cooking zones according to the plurality of different power transmission patterns. 
     In operation S 2107 , the heating apparatus  2000  may output information regarding the first cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may display that the cooking appliance  1000  is located in the first cooking zone, by displaying the identification information regarding the cooking appliance  1000  on the GUI in an area displaying a power level of the first cooking zone. Because operation S 2107  corresponds to operation S 540  of  FIG.  5   , this will not be described repeatedly. 
     In addition, according to an embodiment of the disclosure, the heating apparatus  2000  may identify the location of the cooking appliance  1000  by using an NFC function instead of the power transmission pattern. For example, the communication coil  1002  and an NFC module (an NFC chip) are provided in each of the heating apparatus  2000  and the cooking appliance  1000 . The communication coil  1002  may be an NFC antenna coil, and the NFC module may include a circuit for NFC communication. Moreover, when the heating apparatus  2000  includes a plurality of cooking zones, the NFC antenna coil may be arranged in each of the plurality of cooking zones. 
     According to an embodiment of the disclosure, the NFC antenna coil included in the heating apparatus  2000  and the NFC antenna coil included in the cooking appliance  1000  may be arranged at locations corresponding to each other. For example, when the NFC antenna coil included in the heating apparatus  2000  is arranged at the center of each cooking zone, the NFC antenna coil included in the cooking appliance  1000  may be arranged at the bottom center of the cooking appliance  1000 . Also, when the NFC antenna coil included in the heating apparatus  2000  is arranged on the edge (e.g., outside the transmission coil), the NFC antenna coil of the cooking appliance  1000  may be arranged at the bottom center of the cooking appliance  1000 . 
     According to another embodiment of the disclosure, the NFC antenna coil included in the heating apparatus  2000  may be arranged on the edge of each cooking zone, and the NFC antenna coil included in the cooking appliance  1000  may be arranged at the bottom center of the cooking appliance  1000 . In contrast, the NFC antenna coil included in the heating apparatus  2000  is arranged at the center of each cooking zone, and the NFC antenna coil included in the cooking appliance  1000  may also be arranged on the bottom edge of the cooking appliance  1000 . 
     In addition, the NFC module included in each of the heating apparatus  2000  and the cooking appliance  1000  may operate as an NFC tag or as an NFC reader depending on circumstances. An embodiment in which the NFC module of the heating apparatus  2000  operates as an NFC reader and the NFC module of the cooking appliance  1000  operates as an NFC tag is first described with reference to  FIGS.  22  and  23   . An embodiment in which the NFC module of the heating apparatus  2000  operates as an NFC tag and the NFC module of the cooking appliance  1000  operates as an NFC reader will be described below in detail with reference to  FIGS.  24  and  25   . 
       FIG.  22    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance by using an NFC tag included in the cooking appliance, according to an embodiment of the disclosure. 
     In operation S 2201 , the heating apparatus  2000  may identify an NFC tag of the cooking appliance  1000 . When the heating apparatus  2000  includes a plurality of cooking zones, an NFC reader may be provided in each cooking zone. Each of the NFC reader and the NFC tag may include an NFC antenna coil. According to an embodiment of the disclosure, when the cooking appliance  1000  is placed in any one cooking zone, one of a plurality of NFC readers respectively corresponding to the plurality of cooking zones may identify the NFC tag of the cooking appliance  1000 . For example, when the cooking appliance  1000  is placed in the first cooking zone, a first NFC reader provided in a first cooking zone may identify the NFC tag of the cooking appliance  1000 . That is, when the cooking appliance  1000  is placed in the first cooking zone, a distance between an NFC antenna coil included in the first cooking zone and an NFC antenna coil of the cooking appliance  1000  is within a certain distance (e.g., 10 cm), and accordingly, a first NFC reader of the heating apparatus  2000  may identify the NFC tag of the cooking appliance  1000 . 
     Identifying the NFC tag may include receiving information stored in the NFC tag. For example, the heating apparatus  2000  may obtain information stored in the NFC tag of the cooking appliance  1000  by identifying the NFC tag of the cooking appliance  1000 . According to an embodiment of the disclosure, the NFC tag of the cooking appliance  1000  may store pre-agreed simple information so that the heating apparatus  2000  may identify the cooking appliance  1000 . For example, the NFC tag of the cooking appliance  1000  may include identification information indicating the type of the cooking appliance  1000 . 
     In operation S 2202 , the heating apparatus  2000  may identify the cooking appliance  1000  as being located in a cooking zone corresponding to the NFC reader that has identified the NFC tag of the cooking appliance  1000 . NFC is a contactless wireless communication technique that may exchange data within a short distance of about 10 cm by using a frequency of 13.56 MHz band. Accordingly, when the first NFC reader among the plurality of NFC readers identifies the NFC tag of the cooking appliance  1000 , the heating apparatus  2000  may determine that the cooking appliance  1000  is located in the vicinity of the first NFC reader (i.e., on the first cooking zone in which the first NFC reader is provided). 
     In operation S 2203 , the heating apparatus  2000  may output information regarding the cooking zone in which the cooking appliance  1000  is located. Also, the heating apparatus  2000  may also output identification information regarding the cooking appliance  1000 , which is obtained from the NFC tag of the cooking appliance  1000 . For example, the heating apparatus  2000  may display that the cooking appliance  1000  is located in the first cooking zone, by displaying the identification information (e.g., an icon) of the cooking appliance  1000  on the GUI in an area displaying a power level of the first cooking zone. Because operation S 2203  corresponds to operation S 540  of  FIG.  5   , this will not be described repeatedly. 
     An operation in which the heating apparatus  2000  identifies the location of the cooking appliance  1000  by using an NFC tag included in the cooking appliance  1000  is now described in a little more detail with reference to  FIG.  23   . 
       FIG.  23    is a flowchart for describing an operation in which a heating apparatus identifies a location of a cooking appliance by using an NFC tag included in the cooking appliance, according to an embodiment of the disclosure. In  FIG.  23   , a case in which the cooking appliance  1000  is a coffee machine is described as an example. 
     Referring to  FIG.  23   , the heating apparatus  2000  may include a first NFC reader  2301  in a first cooking zone in the upper left corner, a second NFC reader  2302  in a second cooking zone in the lower left corner, and a third NFC reader  2303  in a third cooking zone at the right center. The first NFC reader  2301 , the second NFC reader  2302 , and the third NFC reader  2303  may be arranged under the top plate (tempered glass) of the heating apparatus  2000  or may be arranged on the top plate of the heating apparatus  2000 . Also, the first NFC reader  2301 , the second NFC reader  2302 , and the third NFC reader  2303  may be arranged at the center of each cooking zone or may be arranged on the edge of each cooking zone. Each of the first NFC reader  2301 , the second NFC reader  2302 , and the third NFC reader  2303  may include an NFC antenna coil. 
     When a user places the cooking appliance  1000  on the third cooking zone at the right center and presses a power button, the third NFC reader  2303  of the heating apparatus  2000  may identify an NFC tag  2304  of the cooking appliance  1000  and transmit a result of the identification to the processor  2200 . For example, the third NFC reader  2303  is located within a certain distance (e.g., 10 cm) from the NFC tag  2304 , the third NFC reader  2303  may obtain identification information (e.g., information regarding a product type (a coffee machine)) regarding the cooking appliance  1000 , which is stored in the NFC tag  2304 , and may transmit the obtained identification information regarding the cooking appliance  1000  to the processor  2200 . 
     Because the third NFC reader  2303  has identified the NFC tag  2304  of the cooking appliance  1000 , the processor  2200  of the heating apparatus  2000  may identify that the cooking appliance  1000  is located in the third cooking zone in which the third NFC reader  2303  is arranged. Also, the processor  2200  of the heating apparatus  2000  may identify whether the cooking appliance  1000  is a first type of cooking appliance  1000   a  or a second type of cooking appliance  1000   b , based on the identification information (e.g., information regarding a product type (a coffee machine)) regarding the cooking appliance  1000 . 
     The heating apparatus  2000  may output, through the user interface  2500 , location information regarding the cooking appliance  1000  and identification information regarding the cooking appliance  1000 . For example, when the cooking appliance  1000  is a coffee machine that is the second type of cooking appliance  1000   b , the heating apparatus  2000  may output that the coffee machine is located in the third cooking zone (the cooking zone at the right center), by displaying an icon  2305  of the coffee machine at a location corresponding to the third cooking zone (the cooking zone at the right center). Also, the heating apparatus  2000  may output a pre-stored notification (e.g., “Please connect to SmartThings to check out barista&#39;s coffee”) related to the coffee machine. 
     According to another embodiment of the disclosure, the heating apparatus  2000  may also identify the location of the cooking appliance  1000  by using an NFC tag included in each cooking zone. Hereinafter, an operation in which the heating apparatus  2000  including a plurality of NFC tags identifies the location of the cooking appliance  1000  is described in detail with reference to  FIG.  24   . 
       FIG.  24    is a flowchart for describing a method by which a heating apparatus identifies a location of a cooking appliance by using NFC, according to an embodiment of the disclosure. In  FIG.  24   , a case in which the cooking appliance  1000  is a second-first type of cooking appliance  1000   b - 1  including a magnetic material and a communication interface  1030  is described as an example. 
     In operation S 2410 , the heating apparatus  2000  may detect the cooking appliance  1000  through an IH container detection operation. For example, the heating apparatus  2000  may detect the second-first type of cooking appliance  1000   b - 1  including a magnetic material, by sensing a current value of a working coil after power for detecting an IH container is transmitted. 
     In operation S 2420 , the heating apparatus  2000  may transmit preset first level of power to the cooking appliance  1000  to drive the communication interface  1030  of the cooking appliance  1000 . 
     When the heating apparatus  2000  detects that the second-first type of cooking appliance  1000   b - 1  is located on the top plate of the heating apparatus  2000 , the heating apparatus  2000  may wirelessly transmit, to the pickup coil  1001 , first level of power (low power) for driving the PCB  1005  of the cooking appliance  1000 . For example, the heating apparatus  2000  may control the inverter circuit  2113  so that a current corresponding to the first level of power flows through the working coil  2120 . 
     According to an embodiment of the disclosure, the cooking appliance  1000  may receive the first level of power transmitted from the heating apparatus  2000  and supply power to the PCB  1005  through the pickup coil  1001 . For example, the pickup coil  1001  may receive wireless power and supply AC power to the SMPS. The SMPS may convert the supplied AC power into DC power and supply the DC power to the PCB  1005 . In this case, the controller  1020  and the communication interface  1030  (e.g., an NFC module) mounted on the PCB  1005  may be driven. 
     In operation S 2430 , the cooking appliance  1000  may activate the communication interface  1030  based on the first level of power and may identify a first NFC tag among the plurality of NFC tags included in the heating apparatus  2000 . 
     According to an embodiment of the disclosure, an NFC tag including identification information regarding a cooking zone may be attached to each cooking zone of the heating apparatus  2000 . For example, the first NFC tag may be attached to a first cooking zone, a second NFC tag may be attached to a second cooking zone, and a third NFC tag may be attached to a third cooking zone. In this case, each of the first NFC tag, the second NFC tag, and the third NFC tag may include an NFC antenna coil. According to an embodiment of the disclosure, the first NFC tag may store identification information (e.g., a first burner, an upper left burner, etc.) regarding the first cooking zone, the second NFC tag may store identification information (e.g., a second burner, a lower left burner, etc.) regarding the second cooking zone, and the third NFC tag may store identification information (e.g., a third burner, a right center burner, etc.) regarding the third cooking zone. 
     According to an embodiment of the disclosure, when the second-first type of cooking appliance  1000   b - 1  is placed on the first cooking zone, the second-first type of cooking appliance  1000   b - 1  may identify the first NFC tag attached to the first cooking zone through the communication coil  1002  (e.g., an NFC antenna coil) and the communication interface  1030  (e.g., an NFC module). For example, the second-first type of cooking appliance  1000   b - 1  may obtain the identification information (e.g., the first burner, the upper left burner, etc.) regarding the first cooking zone, which is stored in the first NFC tag. 
     In operation S 2440 , the cooking appliance  1000  may identify a cooking zone in which the cooking appliance  1000  is located, based on information included in the first NFC tag. For example, the cooking appliance  1000  may identify the identification information (e.g., the first burner, the upper left burner, etc.) regarding the first cooking zone, which is stored in the first NFC tag, and may identify that the cooking appliance  1000  is located in the first cooking zone. 
     In operation S 2450 , the cooking appliance  1000  may transmit, to the heating apparatus  2000 , information regarding the cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . For example, the cooking appliance  1000  may transmit, to the heating apparatus  2000 , information regarding the first cooking zone and the identification information regarding the cooking appliance  1000  through short-range wireless communication (e.g., NFC, Bluetooth, or BLE). 
     In operation S 2460 , the heating apparatus  2000  may output the information regarding the first cooking zone in which the cooking appliance  1000  is located, and the identification information regarding the cooking appliance  1000 . For example, the heating apparatus  2000  may display that the cooking appliance  1000  is located in the first cooking zone, by displaying the identification information (e.g., an icon) of the cooking appliance  1000  on the GUI in an area displaying a power level of the first cooking zone. Because operation S 2460  corresponds to operation S 540  of  FIG.  5   , this will not be described repeatedly. 
     An operation in which the heating apparatus  2000  identifies the location of the cooking appliance  1000  by using a plurality of NFC tags is now described in a little more detail with reference to  FIG.  25   . 
       FIG.  25    is a flowchart for describing an operation in which a heating apparatus identifies a location of a cooking appliance by using NFC, according to an embodiment of the disclosure. In  FIG.  25   , a case in which the cooking appliance  1000  is a smart pot that is a second-first type of cooking appliance  1000   b - 1  is described as an example. 
     Referring to  FIG.  25   , the heating apparatus  2000  may include a first NFC tag  2501  in a first cooking zone in the upper left corner, a second NFC tag  2502  in a second cooking zone in the lower left corner, and a third NFC tag  2503  in a third cooking zone at the right center. The first NFC tag  2501 , the second NFC tag  2502 , and the third NFC tag  2503  may be arranged under the top plate (tempered glass) of the heating apparatus  2000  or may be arranged on the top plate of the heating apparatus  2000 . Also, the first NFC tag  2501 , the second NFC tag  2502 , and the third NFC tag  2503  may be arranged at the center of each cooking zone or may be arranged on the edge of each cooking zone. Each of the first NFC tag  2501 , the second NFC tag  2502 , and the third NFC tag  2503  may include an NFC antenna coil. 
     When a user places the cooking appliance  1000  on the third cooking zone at the right center and presses a power button, the heating apparatus  2000  may transmit power for driving the communication interface  1030  of the cooking appliance  1000 . In this case, the cooking appliance  1000  may activate the communication interface  1030  (e.g., an NFC module) and may identify the third NFC tag  2503  attached to the third cooking zone. For example, because the cooking appliance  1000  is located with a certain distance (e.g., 10 cm) from the third NFC tag  2503 , the cooking appliance  1000  may obtain identification information regarding the third cooking zone, which is stored in the third NFC tag  2503 , through the NFC module. 
     The cooking appliance  1000  may identify that the cooking appliance  1000  is located in the third cooking zone (the cooking zone at the right center), based on the identification information regarding the third cooking zone obtained from the third NFC tag  2503 . In addition, the cooking appliance  1000  may transmit, to the heating apparatus  2000 , information regarding the third cooking zone and identification information regarding the cooking appliance  1000  through short-range wireless communication. In this case, the heating apparatus  2000  may output, through the user interface  2500 , that the cooking appliance  1000  is located in the third cooking zone. For example, when the cooking appliance  1000  is a smart pot that is the second-first type of cooking appliance  1000   b - 1 , the heating apparatus  2000  may output that the smart pot is located in the third cooking zone (the cooking zone at the right center), by displaying an icon  2504  of the smart pot at a location corresponding to the third cooking zone (the cooking zone at the right center). In  FIGS.  22  to  25   , the case in which the heating apparatus  2000  identifies the location of the cooking appliance  1000  by using the NFC tag has been described as an example, but the disclosure is not limited thereto. For example, the heating apparatus  2000  may detect the location of the cooking appliance  1000  by using a radio frequency identification (RFID) tag in addition to the NFC tag. 
       FIG.  26    is a diagram for describing an operation in which a heating apparatus is interlocked with a server apparatus, according to an embodiment of the disclosure. 
     Referring to  FIG.  26   , according to an embodiment of the disclosure, the cooking system  100  may further include a server apparatus  3000  and a display apparatus  4000 , in addition to the cooking appliance  1000  and the heating apparatus  2000 . Because the cooking system  100  including the cooking appliance  1000  and the heating apparatus  2000  has been described with reference to  FIG.  1   , the server apparatus  3000  and the display apparatus  4000  are now described. 
     According to an embodiment of the disclosure, the server apparatus  3000  may include a communication interface for communicating with an external apparatus. The server apparatus  3000  may communicate with the cooking appliance  1000 , the heating apparatus  2000 , or the display apparatus  4000  through the communication interface. According to an embodiment of the disclosure, the cooking appliance  1000  may access the server apparatus  3000  by transmitting, to the server apparatus  3000 , identification information regarding the cooking appliance  1000  or identification information (login information or account information) regarding a user and receiving, from the server apparatus  3000 , authentication for the identification information regarding the cooking appliance  1000  or the identification information (login information or account information) regarding the user. Also, the heating apparatus  2000  may access the server apparatus  3000  by transmitting, to the server apparatus  3000 , identification information regarding the heating apparatus  2000  or identification information (login information or account information) regarding a user and receiving, from the server apparatus  3000 , authentication for the identification information regarding the heating apparatus  2000  or the identification information (login information or account information) regarding the user. 
     According to an embodiment of the disclosure, the server apparatus  3000  may include an AI processor. The AI processor may train an artificial neural network to generate an artificial intelligence model for recommending a temperature control method. ‘Training’ the artificial neural network may refer to creating a mathematical model that allows optimal decision-making by connecting neurons constituting the artificial neural network while appropriately changing weight values based on data. 
     According to an embodiment of the disclosure, the display apparatus  4000  may be an apparatus that is connected to the server apparatus  3000  and displays information provided from the server apparatus  3000 . According to an embodiment of the disclosure, the display apparatus  4000  may transmit/receive information to/from the server apparatus  3000  through a specific application (e.g., a home appliance management application) installed in the display apparatus  4000 . 
     According to an embodiment of the disclosure, the display apparatus  4000  may be an apparatus that is connected to the cooking appliance  1000  and the heating apparatus  2000  with the same account information. The display apparatus  4000  may be directly connected to the cooking appliance  1000  and the heating apparatus  2000  through a short-range wireless communication channel or may be indirectly connected to the cooking appliance  1000  and the heating apparatus  2000  through the server apparatus  3000 . 
     According to an embodiment of the disclosure, the display apparatus  4000  may be implemented in various forms. For example, the display apparatus  4000  described in the disclosure may include a mobile terminal, a refrigerator including a display, a TV, a computer, or an oven including a display, but is not limited thereto. Also, the mobile terminal may include a smartphone, a laptop computer, a tablet personal computer (PC), a digital camera, an E-book terminal, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, or an MP 3  player, but is not limited thereto. For example, the mobile terminal may be a wearable device that may be worn by a user. Hereinafter, for convenience of description, a case in which the display apparatus  4000  is a smartphone is described as an example. 
     According to an embodiment of the disclosure, the display apparatus  4000  or the heating apparatus  2000  may receive a speech signal, which is an analog signal, through a microphone and may convert a speech part into computer-readable text by using an ASR model. The display apparatus  4000  or the heating apparatus  2000  may obtain a user&#39;s intention to speak by interpreting the converted text by using an NLU model. In this case, the ASR model or the NLU model may be an AI model. The AI model may be processed by an AI-only processor designed in a hardware structure specialized for processing the AI model. The AI model may be created through learning. According to the disclosure, such learning may be achieved by a device itself (e.g., the display apparatus  4000  or the heating apparatus  2000 ) on which artificial intelligence is performed, or may be achieved through a separate server apparatus  3000  and/or a separate system. Examples of learning algorithms include supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but are not limited to the aforementioned examples. 
     The AI model may include a plurality of neural network layers. Each of the plurality of neural network layers has a plurality of weight values, and may perform a neural network operation by using an operation result of a previous layer and an operation between the plurality of weight values. The plurality of weight values of the plurality of neural network layers may be optimized based on a learning result of the AI model. For example, the plurality of weight values may be updated to reduce or minimize a loss value or a cost value obtained from the AI model during a learning process. An artificial neural network may include a deep neural network (DNN), for example, a convolutional neural network (CNN), a deep neural network (DNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBM), a bidirectional recurrent deep neural network (BRDNN), or deep Q-networks, but is not limited to the aforementioned examples. 
     According to an embodiment of the disclosure, the display apparatus  4000  may execute, based on a user input, a specific application (e.g., a home appliance management application) provided from the server apparatus  3000 . In this case, a user may set the order of an IH container detection operation and a small appliance detection operation through an application execution window. Hereinafter, an operation in which a user sets the order of an IH container detection operation and a small appliance detection operation by using a specific application (e.g., a home appliance management application) provided from the server apparatus  3000  is described with reference to  FIGS.  27 A and  27 B . 
       FIGS.  27 A and  27 B  are diagrams for describing an operation in which a server apparatus provides information regarding a heating apparatus through a display apparatus, according to an embodiment of the disclosure. 
     Referring to  FIG.  27 A , when a user executes an application for managing home appliances of the user on the display apparatus  4000 , the display apparatus  4000  may receive information from the server apparatus  3000  and display a list of home appliances on an application execution window. The home appliances of the user may be registered in the server apparatus  3000  with the same account. The home appliances may include the cooking appliance  1000  and the heating apparatus  2000 . 
     For example, the display apparatus  4000  may display, on the application execution window, a list of icons indicating a heating apparatus  2000  (an induction range), a coffee machine, a toaster, a refrigerator, etc. In this case, the display apparatus  4000  may receive a user input for selecting an icon  2701  indicating the heating apparatus  2000 . 
     Referring to  FIG.  27 B , the display apparatus  4000  may display, in response to the user input for selecting the icon  2701 , a setting screen related to the heating apparatus  2000  on the application execution window. 
     For example, the display apparatus  4000  may display, on the application execution window, a first field  2702  for selecting the order of detection operations, and a second field  2703  indicating a list of compatible small appliances. The first field  2702  may include a GUI for determining the order of small appliance detection and IH container detection, but is not limited thereto. Through the first field  2702 , the user may set the heating apparatus  2000  to perform small appliance detection prior to IH container detection or to perform IH container detection prior to small appliance detection. 
     A list of small appliances compatible with the heating apparatus  2000  may be displayed in the second field  2703 . In this case, the small appliances may be connected to the heating apparatus  2000  with the same account. For example, the second field  2703  may display a kettle icon, a toaster icon, a blender icon, a coffee dripper icon, or a smart pot icon, but is not limited thereto. 
     Through the second field  2703 , the user may add a new small appliance compatible with the heating apparatus  2000  to the list or may delete a small appliance that is no longer used from the list. 
     The method according to the embodiments of the disclosure may be implemented in the form of program commands that can be executed by various computer means, and may be recorded on computer-readable recording media. The computer-readable recording media may include program commands, data files, data structures etc. alone or in combination. The program commands written to the computer-readable recording media may be specifically designed and configured for the embodiments of the disclosure or may be well-known and available to one of ordinary skill in the art. Examples of the computer readable recording media include magnetic media (e.g., hard disks, floppy disks, magnetic tapes, etc.), optical media (e.g., compact disc (CD)-ROMs, or digital video discs (DVDs)), magneto-optical media (e.g., floptical disks), and hardware devices (e.g., ROM, RAM, flash memories, etc.) specifically configured to store and execute program commands. Examples of the program commands include advanced language codes that can be executed by a computer by using an interpreter or the like as well as machine language codes made by a compiler. 
     Some embodiments of the disclosure may be implemented in the form of computer-readable recording media, such as program modules to be executed by computers, which include computer-executable instructions. The computer-readable recording media may be any available media accessible by computers, and may include volatile or non-volatile media and detachable or non-detachable media. Furthermore, the computer-readable recording media may include both computer storage media and communication media. The computer storage media include both volatile and non-volatile, detachable or non-detachable media implemented using any method or technique for storing information, such as computer-readable instructions, data structures, program modules, or other data. The communication media generally include computer-readable instructions, data structures, program modules, other data in a modulated data signal, or other transmission mechanisms, and include any information transmission media. Also, some embodiments of the disclosure may be implemented as computer programs or computer program products, such as computer programs executed by computers, which include computer-executable instructions. 
     A device-readable storage medium may be provided in the form of a non-transitory storage medium. In this regard, the term ‘non-transitory storage medium’ simply means that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium. For example, the ‘non-transitory storage medium’ may include a buffer in which data is temporarily stored. 
     According to an embodiment of the disclosure, the method according to various embodiments disclosed herein may be included and provided in a computer program product. The computer program product can be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., CD-ROM), or be distributed (e.g., downloaded or uploaded) online via an application store, or between two user devices (e.g., smartphones) directly. In the case of online distribution, at least a part of the computer program product (e.g., a downloadable app) may be temporarily stored or temporarily generated in a device-readable storage medium, such as a memory of a manufacturer server, an application store server, or a relay server.