Cooking appliance and cooking system

Abstract

To provide a cooking device and a cooking system that allows a user to easily perform operations to prevent forgetting to turn off cooking appliances.SOLUTION: A cooking device includes a heating source that heats an object to be heated, an input operation unit that sets the heating of the heating source, a control unit that sets the set heat power of the heating source according to the setting of the input operation unit and controls the heating source, and a communication unit that communicates with an external device, and when a first set time has elapsed since an operation for setting the heating has been performed from the input operation unit, which is a time shorter than the power-off prevention time set to prevent forgetting to stop heating, the control unit causes the communication unit to send a power-off prevention warning notification signal, which warns of the prevention of forgetting to turn off, to the external device.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present technology relates to a cooking device and a cooking system including a heating unit, and in particular to preventing forgetting to turn off the heating. [Background technology]

[0002] Some cooking appliances have a timer to prevent the appliance from being left on when heating is over, to prevent the appliance from continuing to heat due to forgetting that it is in use, and to ensure safety (see, for example, Patent Document 1).

[0003] The cooking appliance disclosed in Patent Document 1 has a preset time limit set in the off timer, and automatically stops heating when the time limit has elapsed. Here, the cooking appliance in Patent Document 1 has a cooking timer that can be set to any time, and if the time set in the cooking timer is longer than the time limit, the set time takes priority over the time limit, and heating can be continued for the set time. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 06-317329 Summary of the Invention [Problem to be solved by the invention]

[0005] However, since the cooking timer is built into the cooking appliance, if the user forgets to set the cooking timer or leaves the appliance, the cooking will end after a limited time or the cooking timer cannot be set or changed. Therefore, when cooking food that requires long heating times, if the function to prevent forgetting to turn it off is activated without the user's knowledge and the user is unable to take action, it can be inconvenient for the user.

[0006] Therefore, an object of the present invention is to provide a cooking appliance and a cooking system that allow a user to easily perform operations related to preventing forgetting to turn off the appliance. [Means for solving the problem]

[0007] The disclosed heating cooker comprises a heat source for heating an object to be heated, an input operation unit for setting the heating of the heat source, a control unit for setting the set heat power of the heat source according to the setting of the input operation unit and controlling the heat source, and a cooker communication unit for communicating with an external device, and when a first set time has elapsed since an operation related to the heating setting was performed from the input operation unit, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, the control unit causes the cooker communication unit to send a power-off prevention warning notification signal warning the external device of the power-off prevention.

[0008] The disclosed heating cooking system also includes a heating cooker having a heat source for heating an object to be heated, an input operation unit for setting the heating of the heat source, a cooker control unit that sets the set heat power of the heat source according to the setting of the input operation unit and controls the heat source, and a cooker communication unit that communicates with the outside, and an external device having an external device communication unit that communicates with the heating cooker, an external device input operation unit that accepts operations, an external device control unit that performs processing based on operations input from the external device input operation unit, and an external device notification unit that issues an alert based on a signal from the external device control unit, and when a first set time has elapsed since an operation related to the heating setting was performed from the input operation unit, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, the cooker control unit causes the cooker communication unit to send a power-off prevention warning notification signal to the external device, warning of power-off prevention. [Effects of the Invention]

[0009] According to the cooking device and cooking system of the present disclosure, the control unit sends a warning notice to an external device when a first set time has elapsed since an operation related to the heating setting was performed from the input operation unit, before the power-off prevention function kicks in. Therefore, even if the user is away from the cooking device, the user can be alerted that heating will be stopped due to the power-off prevention function. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing a cooking system 1a according to a first embodiment of the present disclosure. [Figure 2] FIG. 1 is a perspective view showing kitchen furniture 600 according to a first embodiment of the present disclosure. [Figure 3] 1 is a side view showing a cooking device 1 according to a first embodiment of the present disclosure. [Figure 4] 1 is a top view showing a cooking device 1 according to a first embodiment of the present disclosure. [Figure 5] 2 is a schematic diagram showing a central operation unit 15M according to the first embodiment of the present disclosure. FIG. [Figure 6] 2 is a schematic diagram showing a left display unit 16L, a left heating power display unit 17L, and a left operation unit 15L according to the first embodiment of the present disclosure. FIG. [Figure 7] 2 is a schematic diagram showing a right display unit 16R, a right heating power display unit 17R, and a right operation unit 15R according to the first embodiment of the present disclosure. FIG. [Figure 8] 2 is a functional block diagram showing a cooking device control unit 40 according to the first embodiment of the present disclosure. FIG. [Figure 9] 2 is a diagram illustrating a hardware configuration of a cooking device control unit 40 according to the first embodiment of the present disclosure. FIG. [Figure 10] 5A to 5C are schematic diagrams showing an example of an operating procedure for the right operating unit 15R according to the first embodiment of the present disclosure. [Figure 11] 2 is a diagram showing a configuration of an external device 200 according to the first embodiment of the present disclosure. FIG. [Figure 12]FIG. 2 is a diagram showing a first example of a setting image related to the cooking appliance 1 displayed on the screen of the external device 200 according to the first embodiment of the present disclosure. [Figure 13] FIG. 2 is a diagram illustrating a heating power setting screen according to the first embodiment of the present disclosure. [Figure 14] FIG. 2 is a diagram illustrating an example of a timer setting screen according to the first embodiment of the present disclosure. [Figure 15] 4 is a flowchart showing a processing flow of the heat cooking system 1a when the heat power of the heat cooker 1 according to the first embodiment of the present disclosure is set remotely. [Figure 16] 4 is a flowchart showing a processing flow of the heat cooking system 1a when the heating time of the heat cooker 1 according to the first embodiment of the present disclosure is set remotely. [Figure 17] 10 is a flowchart showing a processing flow of the cooking system 1a when setting an extension of the heating time of the cooking appliance 1 according to the first embodiment of the present disclosure remotely. [Figure 18] FIG. 2 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off in the cooking system 1a according to the first embodiment of the present disclosure. [Figure 19] FIG. 2 is a diagram showing an example of a time chart of each part involved in an extension operation to prevent forgetting to turn off the power in the cooking system 1a according to the first embodiment of the present disclosure. [Figure 20] FIG. 2 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off the power when the heating power is strong in the heating cooking system 1a according to the first embodiment of the present disclosure. [Figure 21] FIG. 10 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off in the cooking system 1a according to the second embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of a cooking device and a cooking system according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the embodiments described below. In addition, the dimensional relationships between components in the following drawings, including FIG. 1, may differ from the actual relationships. Furthermore, in the following description, terms indicating directions are used as appropriate to facilitate understanding, but these terms are for explanatory purposes and do not limit the present disclosure. Examples of terms indicating directions include "up," "down," "right," "left," "front," and "rear." The cooking device includes a composite cooking device having multiple types of heating means.

[0012] Embodiment 1 In the first embodiment, the "first heating means" HM1 is a heat source for heating an object to be heated placed on the top plate 3, which will be described later. A typical example of the first heating means HM1 is an induction heating coil. A typical induction heating coil (IH coil) is one formed by bundling approximately 30 thin copper or aluminum wires of approximately 0.1 mm to 0.3 mm, twisting several of these bundles together, and winding them into a spiral. Another induction heating coil is one formed by winding approximately 1,000 to 1,500 wires of approximately 0.05 mm. Another proposal has been made to form the induction heating coil from a ring-shaped conductor made of a flat conductive material. All of these configurations correspond to the "IH coil" that is the main part of the induction heating source 9, which will be described later.

[0013] In the present embodiment 1, the "second heating means" HM2 refers to a heat source for heating an object to be heated housed inside the heating chamber 6, which will be described later. The second heating means HM2 may be a steam generator that supplies high-temperature steam, such as superheated steam, i.e., a boiler. In the present embodiment 1, a magnetron is used as the microwave heating source, but there is no limitation on the microwave oscillation principle or method, and it may be a microwave oscillator or the like. Furthermore, the cooking appliance 1 may be provided with multiple heat sources.

[0014] In the present embodiment 1, the "third heating means" HM3 is called "third" to indicate the difference from the second heating means HM2, but does not imply a superiority or inferiority relationship. In addition, in the present embodiment 1, a heat source using a radiant electric heat source, such as a sheath heater, mica heater, carbon heater, ceramic heater, infrared heater, or radiant heater, is used, but heat sources that generate heat in other forms or methods may also be used. The third heating means HM3 refers to a means that can heat and cook food in one heating chamber 6.

[0015] The third heating means HM3 may be configured to use a combination of multiple heat sources with different heating principles, such as a heat source composed of an electric heater and a gas combustor (burner). An induction heating source 9 may be used as the heat source for heating the heating chamber 6. The heat source may also be a steam generator, i.e., a boiler, that supplies high-temperature steam, such as superheated steam. The third heating means HM3 may be a heat source that heats the wall surface of the heating chamber 6 from the outside, or a heat source that is installed in the interior space of the heating chamber 6 and heats the atmosphere in the interior space. Alternatively, a heat-generating element that heats up to a high temperature by induction heating may be installed in the heating chamber 6, and the heat-generating element may heat the wall surface of the heating chamber 6 from the outside or the air inside the heating chamber 6.

[0016] FIG. 1 is a schematic diagram showing a cooking system 1a according to the first embodiment of the present disclosure. The cooking system 1a includes a cooking appliance 1, a wireless router 400, and an external device 200, such as a smartphone, that has a function of wirelessly communicating with the cooking appliance 1 via a cloud server 300 that is external to the wireless router 400 and the cooking appliance 1. The external device 200 has an external device control unit 240, as described below, and performs communication and information management from the cloud server 300, data conversion for notifying the cloud server 300 of voice input from the user, and the like. The external device 200 will be described later. The external device 200 is, for example, an information processing terminal device. Here, in the cooking system according to the first embodiment, the external device 200 is assumed to be a smartphone. However, the information processing terminal device that is the external device 200 is not limited to a smartphone, and may be a tablet terminal device with a communication function or a smart speaker with a display screen, for example.

[0017] The external device 200 and the recipe information providing server 301 in the cloud server 300 are connected by a network 202 that is a telecommunications line such as the Internet. Here, the recipe information providing server 301 includes a recipe providing site. The recipe providing site includes a recipe database 302. The recipe information providing server 301 and the cooker 1 are connected by a network 203 such as the Internet via a wireless router 400 located in the home. The wireless router 400 is a device that acts as an interface between the network 203 and a communication unit 51, which serves as a cooker communication unit of the cooker 1, as described below, and is a repeater that communicatively connects the external device 200 and the recipe information providing server 301 with the communication unit 51. The recipe information providing server 301 also includes heating setting data for the cooker 1, and stores heating conditions that can be set to the cooker 1 from the external device 200, as described below.

[0018] In the cooking system 1a, cooking condition data CD3 corresponding to a recipe created by a user in the external device 200 can be transmitted to the recipe information providing server 301. The recipe information providing server 301 can then temporarily store the cooking condition data CD3 in the recipe database 302 and provide it to the cooker 1. In other words, when the external device 200 is located in a place far away from the house where the cooker 1 is installed, such as when the user is away from home, the cooking condition data CD3 of the external device 200 can be saved in the recipe information providing server 301. This provides a high level of convenience.

[0019] The cooking appliance 1 downloads cooking condition data CD4 corresponding to a specific recipe stored in the recipe information providing server 301 via the network 203 and the wireless router 400 between the cooking appliance 1 and the recipe information providing server 301.

[0020] As an initial setting, the user performs an operation to register identification information such as the model name of the cooking appliance 1. This registration allows the user to obtain cooking condition data corresponding to the specifications of the cooking appliance 1, such as the heating capacities of the first heating means HM1, second heating means HM2, and third heating means HM3, from the recipe information providing server 301. The cloud server 300 has a cloud control unit 303 that controls communications using the network 203 and manages access by the cooking appliance 1 and external devices 200 to the recipe information providing server 301.

[0021] FIG. 2 is a perspective view showing kitchen furniture 600 according to the first embodiment of the present disclosure. FIG. 3 is a side view showing the cooking appliance 1 according to the first embodiment of the present disclosure. As shown in FIGS. 2 and 3, the cooking appliance 1 has a heating section HM including a first heating means HM1, a second heating means HM2, and a third heating means HM3. The first heating means HM1 is disposed below a top plate 3 that covers the upper surface of the cooking appliance 1. The second heating means HM2 supplies microwaves to the inside of a heating chamber 6 formed inside the cooking appliance 1. The third heating means HM3 is disposed inside or outside the heating chamber 6 and heats the heating appliance by increasing the temperature of the internal space of the heating chamber 6.

[0022] Cooking appliance 1 is a built-in IH cooking heater that is incorporated into kitchen furniture 600, i.e., kitchen furniture, with a cooking table on top. Cooking appliance 1 has a main body 2 and a top plate 3 installed on main body 2. Top plate 3 is exposed on the kitchen countertop that forms the top surface of kitchen furniture 600. Top plate 3 is composed of, for example, a heat-resistant glass plate and a metal frame attached to the periphery of the glass plate. Three heating outlets 4 are provided on the upper surface of top plate 3: a left heating outlet 4L, a right heating outlet 4R, and a center heating outlet 4C.

[0023] The left heating port 4L, the right heating port 4R, and the center heating port 4C indicate areas where metal cooking containers such as pots or frying pans are placed. Metal cooking containers are also referred to as "heated objects" in relation to the first heating means HM1. Guide marks (not shown) that serve as guides for placing the heated objects on the left heating port 4L, the right heating port 4R, and the center heating port 4C are printed on the upper surface of the top plate 3.

[0024] An exhaust port cover 5 is provided on the rear side, that is the farthest part of the top plate 3. The exhaust port cover 5 is made of a punched metal or lattice-shaped metal member with numerous small through holes formed therein, and is breathable throughout with little air resistance. Exhaust air released from inside the cooking appliance 1 passes through the exhaust port cover 5 and exits to the outside of the cooking appliance 1. A heating door, which is a door 7 that opens and closes the front of the heating chamber 6 located inside the cooking appliance 1, is provided on the front of the main body 2 of the cooking appliance 1. The door 7 is provided with a handle 8 for opening and closing the door.

[0025] As shown in FIG. 3, an induction heating coil (hereinafter referred to as the "left IH coil 9L") is provided below the left heating port 4L as a left induction heating means that serves as a heat source for heating the food to be cooked. Similarly, an induction heating coil (hereinafter referred to as the "right IH coil 9R") is provided below the right heating port 4R as a right induction heating means that serves as a heat source, and an induction heating coil (hereinafter referred to as the "center IH coil 9C") is provided below the center heating port 4C as a center induction heating means that serves as a heat source. The left IH coil 9L, right IH coil 9R, and center IH coil 9C are circular heating coils made by winding thin conductors such as copper or aluminum wire, and generate a high-frequency magnetic field when high-frequency current is supplied to them. This induction heating heats the food to be heated, which is a cooking container placed over the left heating port 4L, right heating port 4R, and center heating port 4C.

[0026] The heating means, including the left IH coil 9L, right IH coil 9R, and center IH coil 9C, and a drive circuit (not shown) that drives them, such as an inverter circuit or other high-frequency power supply circuit, is sometimes referred to as the induction heating source 9 or first heating means HM1. In the following description, the term first heating means HM1 will be used unless otherwise specified. A temperature sensor group 30 (see FIG. 8 ), consisting of multiple temperature sensors, is mounted near the left IH coil 9L, right IH coil 9R, and center IH coil 9C to detect the temperature of the top plate 3 or the object to be heated. Each temperature sensor (not shown) constitutes one sensor in the temperature sensor group 30.

[0027] The heating chamber 6 is located inside the main body 2, below the left IH coil 9L, right IH coil 9R, and center IH coil 9C. The heating chamber 6 is surrounded by metal walls such as stainless steel and is a space for heating the food and ingredients contained within the heating chamber 6. The food is placed in a heat-resistant plastic container and placed in the heating chamber 6, or on a porcelain or heat-resistant glass plate. In this case, the plate or container is sometimes referred to as the "heated container." Note that because the container is not induction-heated by the left IH coil 9L, right IH coil 9R, or center IH coil 9C, even if it is placed on the heating port 4 of the top plate 3, it is not referred to as the "heated object" of the left IH coil 9L, right IH coil 9R, or center IH coil 9C.

[0028] An opening is formed in the front of the heating chamber 6 for putting in and taking out the food to be cooked. The opening in the front of the heating chamber 6 is covered by a door 7 that can be opened and closed freely. The door 7 is supported by the main body 2 so that it can rotate freely via a hinge (not shown) and an arm (not shown). This allows the door 7 to open forward to a horizontal position with its lower end serving as a fulcrum, i.e., the center of rotation. The door 7 may be pulled forward integrally with a support member (not shown) that supports the container to be heated from below by a slide rail (not shown). The support member is, for example, a structure such as a shelf.

[0029] Door 7 is provided with an open / close detector 10 for detecting whether door 7 is open or closed. Open / close detector 10 is, for example, a microswitch or an infrared sensor. Behind heating chamber 6 is provided microwave oscillator 11 for heating food placed in heating chamber 6. Microwave oscillator 11 is composed of, for example, a magnetron, and performs range heating by irradiating microwaves into heating chamber 6 to heat food placed in heating chamber 6. The heating means including microwave oscillator 11 and a drive circuit (not shown) that is a high-frequency power supply circuit such as an inverter circuit that drives it may be referred to as second heating means HM2.

[0030] The heating chamber 6 is also provided with upper radiant heat heating means 12a and lower radiant heat heating means 12b that heat the food from above and below. The upper radiant heat heating means 12a is arranged on the outer or inner ceiling wall surface of the heating chamber 6, and the lower radiant heat heating means 12b is arranged on the inner or outer wall surface of the heating chamber 6, and both are sheath heaters. Other types of radiant heat heating means, such as a mica heater or a carbon heater, may also be installed outside the heating chamber 6. Figure 3 shows an example in which the upper radiant heat heating means 12a and the lower radiant heat heating means 12b are both installed so as to be in close contact with the outer wall surface of the heating chamber 6.

[0031] The heating means including the upper radiant heat heating means 12a, the lower radiant heat heating means 12b, and a drive circuit (not shown) that is a high-frequency power supply circuit such as an inverter circuit that drives them may be referred to as the third heating means HM3. Note that the upper radiant heat heating means 12a and the lower radiant heat heating means 12b may be collectively referred to as the "radiant heat heating means," in which case the reference numeral 12 is used.

[0032] Additionally, heating chamber 6 is provided with infrared sensor 13, which is a non-contact temperature sensor, to detect the temperature of the food inside heating chamber 6 without contact. The temperature range detected by infrared sensor 13 is set to, for example, -20°C to 100°C. This allows the degree of heating of the food to be detected accurately in real time, for example, in 1°C increments. Infrared sensor 13 also constitutes one sensor in a group of temperature sensors 30 (see FIG. 8).

[0033] The heating chamber 6 is also provided with a contact-type temperature sensor, such as a thermistor sensor 14, which is an interior temperature sensor that detects the ambient temperature inside the heating chamber 6 or the wall temperature of the heating chamber 6. The thermistor sensor 14 detects temperature by detecting changes in electrical resistance, and therefore the upper limit of the temperature that it can detect is approximately 250°C. The thermistor sensor 14 also constitutes one sensor in the temperature sensor group 30 (see FIG. 8). The thermistor sensor 14 may be installed in two locations, near the bottom and near the ceiling of the heating chamber 6, as shown in FIG. 3.

[0034] Fig. 4 is a top view showing the cooking appliance 1 according to the first embodiment of the present disclosure. As shown in Fig. 4, a left operation unit 15L, a central operation unit 15M, and a right operation unit 15R are provided on the front side of the upper surface of the top plate 3 of the cooking appliance 1. These may be collectively referred to as "input operation unit 15." A left heating power display unit 17L, a central display unit 16M, a right heating power display unit 17R, a left display unit 16L, a right display unit 16R, and a central heating status display unit 17M are provided on the rear side behind the left operation unit 15L, the central operation unit 15M, and the right operation unit 15R.

[0035] The left display unit 16L, the center display unit 16M, and the right display unit 16R may be collectively referred to as the "display unit 16." The center display unit 16M has a horizontally long liquid crystal display screen. The display unit 16 is controlled by the cooking appliance control unit 40, which will be described later, and displays characters and the like based on display signals sent from the cooking appliance control unit 40 to provide notifications. The left heating power display unit 17L and the right heating power display unit 17R display the heating power level using light-emitting elements (such as LEDs) and do not have display screens. The left heating power display unit 17L, the right heating power display unit 17R, and the center heating status display unit 17M may be collectively referred to as the "heating power display unit 17."

[0036] In addition, an operation button (key) 20A for the main power switch 20 is provided adjacent to the right operation unit 15R. The main power switch 20 turns the main power of the cooking appliance 1 on or off. The button (key) that is pressed during this ON / OFF operation is the operation button 20A. When the main power of the cooking appliance 1 is in the OFF state, pressing the operation button 20A for, for example, several seconds turns the main power on. When the main power of the cooking appliance 1 is in the ON state, pressing the operation button 20A for, for example, several seconds turns the main power off.

[0037] The central display unit 16M displays information and warnings about the entire cooking appliance 1, and is composed of a liquid crystal display. The display screen of the central display unit 16M displays the selection result of induction heating means (first heating means) HM1, microwave heating means (second heating means) HM2, or radiant heat heating means (third heating means) HM3. Furthermore, the display screen of the central display unit 16M displays the operating status of each heating means, caution information for cooking with each heating means, or warning information. Although the central display unit 16M is a single liquid crystal display in terms of hardware, it has three display areas: a first display area 22 on the left, a second display area 23 in the center of the left and right, and a third display area 24 on the right, and it is possible to display different information in each display area (see Figure 5).

[0038] Furthermore, the first display area 22, the second display area 23, and the third display area 24 may link together as needed to form a single, large display area depending on the display situation, and may display a single purpose. The central operation unit 15M is used to input operations related mainly to cooking in the heating chamber 6 and cooking using the central heating port 4C. As shown in Fig. 5, the central operation unit 15M has, as input keys, a central heating start key 151M, a central heating cancel key 152M, a first central heat decrease key 153M, a first central heat increase key 154M, a second central heat decrease key 155M, a second central heat increase key 156M, a third central heat decrease key 157M, a third central heat increase key 158M, and a function setting key 159M. The central heating start key 151M, central heating cancel key 152M, first central heat decrease key 153M, first central heat increase key 154M, second central heat decrease key 155M, second central heat increase key 156M, third central heat decrease key 157M, third central heat increase key 158M, and function setting key 159M are capacitive touch keys. However, this is not limited to this, and keys using push-button mechanical switches may also be used. In addition, individual light-emitting units 21M corresponding to each input key are provided near the central heating start key 151M, central heating cancel key 152M, first central heat decrease key 153M, first central heat increase key 154M, second central heat decrease key 155M, second central heat increase key 156M, third central heat decrease key 157M, third central heat increase key 158M, and function setting key 159M. The function setting key 159M used for function setting is a key that enables the user to set various operations and displays of the entire cooking appliance 1 as desired.

[0039] When the function setting key 159M related to function setting is pressed, the cooking device control unit 40 described later switches to a "function setting mode" and causes the display unit 16 to display a "function setting menu" such as the one below on the display screen of the central display unit 16M. (1) Child lock setting (setting to disable operation of various input keys). (2) Ventilation fan linkage setting. (3) Cleaning guide setting (setting of automatic notification function for cleaning the heating chamber 6 and exhaust port cover 5). (4) Peak cut setting (select one of four maximum power consumption levels: 5700W, 5000W, 4800W, and 4000W). (5) Audio guide audio settings. (6) Audio guide volume setting. (7) Settings to prevent forgetting to remove food, cooking utensils, etc. from the heating chamber 6 (whether or not to issue an alarm on the audio notification unit 50 and central display unit 16M). (8) Communication settings (communication connection settings between the communication unit 51 and the wireless router 400). Regarding the above settings, various setting modes can be changed by operating the central operation unit 15M.

[0040] FIG. 5 is a schematic diagram showing a central operation unit 15M according to the first embodiment of the present disclosure. As shown in FIG. 5, the central operation unit 15M of the input operation unit 15 is composed of individual light-emitting units 21M and a group of input keys. The individual light-emitting units 21M emit light when the input function of each input key is enabled, and continue to emit light until the input function is disabled. In the central operation unit 15M, a third central heat down key 157M for setting a function is located adjacent to the left of the first central heat down key 153M. In the first embodiment, the input mode in which the user controls the cooking appliance 1 by pressing with a fingertip or the like (including light contact) is referred to as the touch input mode TM.

[0041] 6 is a schematic diagram showing a left display unit 16L, a left heating power display unit 17L, and a left operation unit 15L according to the first embodiment of the present disclosure. As shown in FIG. 6, the left display unit 16L displays information related to cooking using the left heating port 4L, and is configured, for example, with a liquid crystal display. The left display unit 16L displays the set time for timer cooking for an object to be heated placed on the left heating port 4L, the elapsed time since the start of heating using the left heating port 4L, or the remaining time until the end of the set timer time.

[0042] When preheat cooking is selected for the left heating port 4L, the left display unit 16L displays the automatically set default temperature, the current temperature, etc. The automatically set default temperature refers to the target temperature of the bottom of an object to be heated, such as a metal pot, when the object is heated through the left heating port 4L. The default temperature can be changed by the user within a certain range.

[0043] The left heating power display unit 17L has multiple left heating power display light-emitting elements 170L, which indicate the heating power of the left IH coil 9L in stages. Each left heating power display light-emitting element 170L includes a light-emitting element such as an LED. The cooking appliance 1 indicates the heating power of the left IH coil 9L in stages by switching the lighting state of each left heating power display light-emitting element 170L or by switching the lighting color of each left heating power display light-emitting element 170L. The cooking appliance 1 lights up more left heating power display light-emitting elements 170L, for example, from the left, depending on the level of heating power of the left IH coil 9L. When the left IH coil 9L is in a keep-warm state for the left heating port 4L, the leftmost left heating power display light-emitting element 170L is turned on. This allows the user to be informed of the heating power in an intuitive and easy-to-understand manner.

[0044] The left operation unit 15L is used to input operations related to cooking using the left heating port 4L. As shown in FIG. 6, the left operation unit 15L includes five keys: a left timer key 151L, a left cooking selection key 152L, a left start key 153L, a left heat decrease key 154L, and a left heat increase key 155L. The left timer key 151L, the left cooking selection key 152L, the left start key 153L, the left heat decrease key 154L, and the left heat increase key 155L are touch-type switches that use capacitance-type touch sensors that can input commands by utilizing changes in capacitance when a user lightly touches them with a finger or the like. However, this is not limited to this, and keys using push-button mechanical switches may also be used. Individual light-emitting units 21L are provided corresponding to the left timer key 151L, the left cooking selection key 152L, the left start key 153L, the left heat decrease key 154L, and the left heat increase key 155L. Individual light-emitting unit 21L is composed of a plurality of LEDs, which are light-emitting elements, and emits light in response to operation of left timer key 151L, left cooking selection key 152L, left start key 153L, left heat down key 154L, and left heat up key 155L. Note that the two adjacent left heat down key 154L and left heat up key 155L share one individual light-emitting unit 21L because they perform the same function of increasing or decreasing the heat level.

[0045] The left timer key 151L is a key that is pressed when selecting timer cooking for the left heating port 4L. Timer cooking is a cooking method in which the user sets the cooking time and the heating operation is performed only for the set time. The left cooking selection key 152L is a key that is pressed when selecting a control menu to be performed for the left heating port 4L. Each time the left cooking selection key 152L is pressed, one of multiple control menus can be selected. The "control menu" referred to here is, for example, boiling water, stewing, and frying (automatic cooking). The operating time, heat power, or operating pattern of the left heating port 4L differs for each control menu.

[0046] The control menu for the single cooking mode KM1, in which the left heating port 4L and the right heating port 4R are operated by operating the left operation unit 15L or the right operation unit 15R without operating the central operation unit 15M, is a control menu for the single cooking mode KM1, in which all cooking is done by induction heating. The left start key 153L is a key that is pressed to start or stop cooking using the left heating port 4L. That is, pressing the left start key 153L activates the left IH coil 9L located below the left heating port 4L. If the left start key 153L is pressed again while the left IH coil 9L is activated, activation of the left IH coil 9L is stopped, and induction heating operation is immediately stopped. In the first embodiment, when the left start key 153L is operated when the left IH coil 9L is not activated and the heating power of the left IH coil 9L is not set, the cooking appliance 1 enters standby for heating using the left IH coil 9L. In this case, when the heating power of the left IH coil 9L and the like is set and the left start key 153L and the like is operated again, the left IH coil 9L is driven to heat at the set heating power. Note that instead of the left start key 153L, the cooking appliance 1 may be provided with a key that accepts an operation to instruct standby for heating by the left IH coil 9L, separate from the left start key 153L. Hereinafter, the keys that accept an operation to instruct standby for heating by the left IH coil 9L will be collectively referred to as the left start key 153L.

[0047] The left heat down key 154L and the left heat up key 155L are keys that are pressed to specify the heat level during heating cooking at the left heating port 4L. When the user presses the left heat down key 154L on the left side, the heat level is decreased by one level. Conversely, when the user presses the left heat up key 155L on the right side, the heat level is increased by one level. The heat level during induction heating cooking at the left heating port 4L has nine levels, ranging from the minimum rated heat level (heat level 1: 150W) to the maximum rated heat level (heat level 9: 3200W).

[0048] FIG. 7 is a schematic diagram showing a right display unit 16R, a right heating power display unit 17R, and a right operation unit 15R according to the first embodiment of the present disclosure. As shown in FIG. 7, the right display unit 16R displays information related to cooking using the right heating port 4R and is configured, for example, by a liquid crystal display. The information related to cooking using the right heating port 4R displayed on the right display unit 16R is the same as the information related to cooking using the left heating port 4L. The right heating power display unit 17R is configured by a plurality of light-emitting diodes (LEDs) and displays the heating power of the right heating port 4R in multiple stages. Like the left heating power display unit 17L, the right heating power display unit 17R is configured by a right heating power display light-emitting unit 170R, which is a light-emitting element such as an LED. The heating power is indicated by switching the lighting state of the right heating power display light-emitting unit 170R, for example, between on, off, or flashing, or by switching the lighting color.

[0049] The right operation unit 15R is used to input operations related to cooking using the right heating port 4R. As shown in FIG. 7, the right operation unit 15R includes five keys: a right timer key 151R, a right cooking selection key 152R, a right start key 153R, a right heat decrease key 154R, and a right heat increase key 155R. The right timer key 151R, the right cooking selection key 152R, the right start key 153R, the right heat decrease key 154R, and the right heat increase key 155R are capacitive touch-type keys that can input commands by utilizing changes in capacitance when the user lightly touches them with a finger or the like. However, this is not limited to this, and keys using push-button mechanical switches may also be used. Individual light-emitting units 21R are provided corresponding to the right timer key 151R, the right cooking selection key 152R, the right start key 153R, the right heat decrease key 154R, and the right heat increase key 155R, respectively. The individual light-emitting units 21R are LEDs, which are light-emitting elements, and the corresponding individual light-emitting units 21R light up in response to the operation of the right timer key 151R, right cooking selection key 152R, right start key 153R, right heat decrease key 154R, and right heat increase key 155R. However, the two adjacent right heat decrease keys 154R and right heat increase keys 155R share one individual light-emitting unit 21R because they perform the same function of increasing or decreasing the heat level.

[0050] The right timer key 151R is pressed to select timer cooking for the right heating port 4R. The right cooking selection key 152R is pressed to select a control menu to be performed for the right heating port 4R. The right start key 153R is pressed to start or stop cooking for the right heating port 4R. The right heat decrease key 154R and the right heat increase key 155R are pressed to specify the heat power for cooking for the right heating port 4R. The user decreases the heat power by one level by pressing the right heat decrease key 154R on the left. Conversely, the user increases the heat power by one level by pressing the right heat increase key 155R on the right. The heat power for induction cooking for the right heating port 4R has nine levels, ranging from a rated minimum heat power (heat power 1) of 150W to a rated maximum heat power (heat power 9) of 3200W.

[0051] Fig. 8 is a functional block diagram showing a cooking device control unit 40 according to the first embodiment of the present disclosure. As shown in Fig. 8, cooking device 1 includes cooking device control unit 40 that performs integrated control of cooking device 1 as a whole.

[0052] The cooking appliance control unit 40 is an electronic circuit board mounted with electronic components such as a control circuit that controls the operation of each component of the cooking appliance 1. The cooking appliance control unit 40 controls the driving of the left IH coil 9L, the right IH coil 9R, and the central IH coil 9C (not shown) based on the operation of the left operating unit 15L and the right operating unit 15R and the temperature of the object to be heated on the top plate 3. The cooking appliance control unit 40 controls the driving of the following components based on the operation of the central operating unit 15M, the temperature of the object to be heated on the top plate 3, the detection results of the infrared sensor 13, and the detection results of the thermistor sensor 14: for example, the driving of the central IH coil 9C, the microwave oscillator 11, the upper radiant heat heating means 12a, and the lower radiant heat heating means 12b.

[0053] The cooker control unit 40 also controls the displays on the left display unit 16L, the right display unit 16R, the left heating power display unit 17L, and the right heating power display unit 17R based on the operation of the left operation unit 15L and the right operation unit 15R. Furthermore, the cooker control unit 40 controls the displays on the center display unit 16M and the center heating status display unit 17M based on the open signal from the open / close detection unit 10 and the operation of the left operation unit 15L, the right operation unit 15R, and the center operation unit 15M. The cooker control unit 40 has a storage device 41 that stores data such as various programs and parameters used to control the cooker 1, as well as data on the display screens displayed on the display unit 16, the left heating power display unit 17L, and the right heating power display unit 17R. The data on the programs and parameters is collectively referred to as "control data." The data on the display screens displayed on the display unit 16, the left heating power display unit 17L, and the right heating power display unit 17R is collectively referred to as "display condition data."

[0054] Furthermore, the cooking appliance control unit 40 activates the audio notification unit 50 as necessary and sends an audio signal to the audio notification unit 50 to notify the user of the operating status of the cooking appliance 1 by audio. Here, the display unit 16, the heat power display unit 17, and the audio notification unit 50 may be collectively referred to as the cooking appliance notification unit 60 without any particular distinction being made. As mentioned above, the left operation unit 15L, the right operation unit 15R, and the central operation unit 15M may be referred to as the input operation unit 15. The input operation unit 15 has a standby button (not shown) that transitions to a standby state in which it accepts input of first and second heating conditions from the external device 200, which will be described later.

[0055] The cooking appliance control unit 40 stores data in a specific format, including information such as various programs and parameters used in the cooking control of the heating control unit 43, in the cooking condition data storage unit 42 of the storage device 41. This data is the cooking condition data CD mentioned above. The cooking appliance 1 can acquire the "cooking condition data" and "display condition data" for each cooking menu from an external device 200 such as a communication terminal. The cooking condition data storage unit 42 stores the "cooking condition data" and the "display condition data." The cooking condition data storage unit 42 may constitute a section, i.e., an area, of the storage device 41, or may be configured as a separate unit from the storage device 41 in terms of hardware.

[0056] The heating control unit 43 performs integrated control of the overall heating operation of the cooking appliance 1 and is mainly composed of a microcomputer. The data acquisition unit 53 acquires "cooking condition data" from the external device 200 or the cloud server 300 via the communication unit 51, which has a wireless LAN adapter or the like for wireless LAN communication. The data acquisition unit 53 may also acquire "display condition data" from the external device 200 or the cloud server 300 via the communication unit 51. The communication unit 51 communicates wirelessly with the outside, and as shown in FIG. 1, has the function of wirelessly communicating with the external device 200 or the cloud server 300 via a wireless router 400. The communication control unit 44 of the cooking appliance control unit 40 performs setting and control processing related to communication by the communication unit 51. The timing unit 52 has a timer or the like and performs counting.

[0057] The power supply circuit 57 supplies constant voltage power to the cooking device control unit 40. The main power switch 20 is a main power switch inserted into the power supply circuit 57. The restriction unit 55 restricts the acquisition of cooking condition data. If the data acquired by the data acquisition unit 53 is invalid or if the heating setting by the external device 200 is invalid, the restriction unit 55 discards the data. Note that the restriction unit 55 may be realized by a single control program of a computer (not shown) that constitutes the cooking device control unit 40, and it is not necessarily required that the restriction unit 55 be configured as hardware separate from the cooking device control unit 40.

[0058] FIG. 9 is a diagram illustrating a hardware configuration of the cooking device control unit 40 according to the first embodiment of the present disclosure. The hardware configuration of the cooking device control unit 40 according to the first embodiment will be described with reference to FIG. 9. The cooking device control unit 40 can be configured, for example, by a processor 35, a memory 36, an input interface circuit 37, and an output interface circuit 38, all connected to one another via a bus 34. Examples of the processor 35 include a central processing unit (CPU) or a micro processing unit (MPU). Examples of the memory 36 include a read-only memory (ROM) or a random access memory (RAM). The functions of the cooking device control unit 40 can be realized by the processor 35 reading and executing various programs and data stored in the memory 36. The following functions of the cooking device control unit 40 can be realized by the processor 35 via the input interface circuit 37. These functions include acquiring detection results from the temperature sensor group 30 and the open / close detection unit 10, acquiring instructions from the communication unit 51, and acquiring instructions via the input operation unit 15. The function of the cooking appliance control unit 40 to control the first heating means HM1 to the third heating means HM3, the cooking appliance notification unit 60 (display unit 16, heat power display unit 17 or audio notification unit 50), and the communication unit 51 can be realized by the processor 35 via the output interface circuit 38. Here, all or part of the functions of the cooking appliance control unit 40 described above may be realized by dedicated hardware.

[0059] 10A and 10B are schematic diagrams showing an example of an operating procedure for the right operating unit 15R according to the first embodiment of the present disclosure. Fig. 10A shows a state before the right start key 153R, which selects and starts cooking using the right heating port 4R, is pressed.

[0060] When the user presses the right start key 153R, the cooking device control unit 40 receives a signal from the right operation unit 15R and detects that cooking using the right heating port 4R has been selected. Then, as shown in Fig. 10(B), the cooking device control unit 40 causes the individual light-emitting unit 21R corresponding to the right start key 153R to emit light, indicating that the operation has been accepted.

[0061] At this time, the right timer key 151R for selecting timer cooking is also waiting for input, so the corresponding individual light-emitting element 21R flashes. The right cooking selection key 152R for selecting the control menu is also waiting for input, so the corresponding individual light-emitting element 21R flashes. The right heat decrease key 154R and right heat increase key 155R, which are operated to select cooking, also flash. In Figure 10(B), the individual light-emitting elements 21R indicated by a star shape or filled in indicate that they are lit or flashing.

[0062] If the default heating power level of the right heating power display unit 17R, which indicates the heating power level for cooking, is set to "3," the right heating power display light-emitting unit 170R will continuously light up from the left side (or change from blue to red) until it indicates heating power level 3, as shown in Figure 10(B). This allows the user to see the level of heating power.

[0063] When the user changes the heat level to a level other than the default setting, the user presses the right heat decrease key 154R, which decreases the heat level by one level each time, and accordingly decreases the number of lights emitted by the right heat level indicator light 170R of the right heat level display unit 17R. On the other hand, when the user presses the right heat increase key 155R, the heat level increases by one level each time, and accordingly increases the number of lights emitted by the right heat level indicator light 170R of the right heat level display unit 17R.

[0064] Next, the function of the cloud control unit 303 will be described in detail. In the following description, the heating menu is referred to as the first heating condition, and the setting conditions are referred to as the second heating condition and the third heating condition. When the cloud control unit 303 receives a notification from the cooking appliance 1 that the user has performed a specific operation, it first notifies the external device 200 of a guide to input the first heating condition. After receiving input information for the first heating condition from the external device 200, the cloud control unit 303 notifies of a guide to input the second heating condition. The processing of the cloud control unit 303 described above may be performed by the cooking appliance control unit 40 or the external device control unit 240 described later. Note that, for example, the first heating condition is a heating mode indicating the type of heating, and the second heating condition and the third heating condition are each any one of heat power, power, temperature, time, and heat level. The second heating conditions and the third heating conditions vary depending on the input first heating conditions, and the input guidance for the second heating conditions and the input guidance for the third heating conditions vary depending on the type of the second heating conditions and the type of the third heating conditions.

[0065] 11 is a diagram showing the configuration of external device 200 according to embodiment 1 of the present disclosure. External device 200 of cooking system 1a according to embodiment 1 has external device input operation unit 210, external device display unit 220, external device communication unit 230, external device control unit 240, external device storage unit 250, and external device audio notification unit 260. External device communication unit 230 communicates signals including various data with cooking appliance 1 and cloud server 300 via networks 202 and 203.

[0066] The external device display unit 220 has a liquid crystal display device or the like. The external device display unit 220 displays the contents of data included in signals sent from the cooking appliance 1 and the cloud server 300, an operation screen of the cooking appliance 1, and the like. In the first embodiment, the external device display unit 220 particularly displays a screen related to the extension of the power-off prevention period. The external device audio notification unit 260 has a speaker or the like, and issues a sound based on a signal from the external device control unit 240 to notify the user. Here, the external device display unit 220 and the external device audio notification unit 260 constitute an external device notification unit that issues the notification.

[0067] The external device input operation unit 210 includes, for example, a touch panel. The external device display unit 220 sends signals including instructions, data, and the like input by the user to the external device control unit 240. For example, when a touch panel is used, a transparent, flat-plate capacitance sensor that detects changes in capacitance is mounted on top of the liquid crystal display device of the external device display unit 220. When the capacitance sensor detects contact (pressure) of the touch surface with the user's fingertip or a dedicated pen, coordinate data of the contact position is sent to the external device control unit 240. The external device control unit 240 determines the content input by the user based on the contact area. When the user performs an input operation via the external device input operation unit 210, a signal corresponding to the operation content is sent to the external device control unit 240. Here, the external device input operation unit 210 is described as a touch panel, but the external device input operation unit 210 also includes a microphone that collects voice from the user and converts it into voice data within the external device 200 to perform operation.

[0068] The external device control unit 240 controls each unit of the external device 200 and controls the external device 200 as a whole. For example, the external device control unit 240 executes an application program executable by the external device 200. The external device control unit 240 processes operations input by a user via the external device input operation unit 210. The external device control unit 240 also transmits signals related to the operation of the cooking appliance 1 to the cloud server 300 via the external device communication unit 230 and processes signals such as the status of the cooking appliance 1 transmitted from the cloud server 300. The external device control unit 240 then performs processing on the processed data, such as reflecting the display content on the external device display unit 220 and storing the data in the external device storage unit 250. The external device storage unit 250 then stores data related to the processing of the external device control unit 240. The external device storage unit 250 of the first embodiment also stores a program executed by the external device control unit 240. The external device control unit 240 executes processing based on the program to realize the processing performed by the external device control unit 240. Here, the external device control unit 240 and the external device storage unit 250 are assumed to have, as hardware, a control and arithmetic processing unit such as a CPU, and storage devices such as a RAM and a ROM.

[0069] Next, a description will be given of remote setting of the cooking appliance 1 by the external device 200. Here, an application program for setting the cooking appliance 1 is installed in the external device 200 and stored in the external device storage unit 250.

[0070] FIG. 12 is a diagram illustrating a first example of a setting image for the cooking appliance 1 displayed on the screen of the external device 200 according to the first embodiment of the present disclosure. Hereinafter, the setting image for the cooking appliance 1 displayed on the screen of the external device 200 may be referred to as a setting screen. The external device 200 accepts operations such as tapping on areas shown in FIG. 12 that indicate "left," "center," "right," "heat setting," and "timer setting." Here, "left" in FIG. 12 refers to the left IH coil 9L. When an operation such as tapping is performed on the left setting area 210L, which is the area showing "left," the external device 200 accepts an instruction for setting heating using the left IH coil 9L. When an operation such as tapping is performed on the right setting area 210R, which is the area showing "right," the external device 200 accepts an instruction for setting heating using the right IH coil 9R. Similarly, "center" in FIG. 12 refers to the central IH coil 9C, and when an operation is performed on the central setting area 210C, which is the area where "center" is displayed, the external device 200 accepts a setting instruction related to heating by the central IH coil 9C. Note that "center" in FIG. 12 may refer to either the microwave oscillator 11 or the radiant heat heating means 12 in addition to the central IH coil 9C. In this case, when an operation is performed on the central setting area 210C, the external device 200 accepts a setting instruction related to heating by either the microwave oscillator 11 or the radiant heat heating means 12. Note that if heating by the central IH coil 9C, the microwave oscillator 11, and the radiant heat heating means 12 cannot be remotely configured, the setting screen does not need to include the central setting area 210C.

[0071] If remote setting is possible for heating by two or more of the central IH coil 9C, the microwave oscillator 11, and the radiant heat heating means 12, the external device 200 may enable selection of one of the two or more remotely settable heating units HM by operating the heating unit selection area 210S, which is an area indicating the content "heating unit selection." In this case, the external device 200 may display an area including information indicating the two or more heating units HM as options, triggered by an operation on the heating unit selection area 210S. The external device 200 may accept an instruction regarding the heating unit HM to be set by operating one of the areas including information indicating the two or more heating units HM. In addition, the external device 200 may accept an instruction to set the left IH coil 9L, the right IH coil 9R, or the like by operating the heating unit selection area 210S. In this case, the left setting region 210L, the center setting region 210C, and the right setting region 210R on the setting screen may be displayed by an operation on the heating unit selection region 210S. Alternatively, apart from the left setting region 210L, the center setting region 210C, and the right setting region 210R on the setting screen, an area for selecting the left IH coil 9L, the right IH coil 9R, or the like may be displayed on the screen of the external device 200 by an operation on the heating unit selection region 210S.

[0072] When an operation is performed on the heating power setting area 210F, which is an area showing the content "heating power setting" shown in Fig. 12, the external device 200 displays a setting screen for accepting the setting of the heating power of the heating unit HM that performs heating by remote setting. Hereinafter, the setting screen for accepting the setting of the heating power may also be referred to as the heating power setting screen.

[0073] 12, the external device 200 displays a setting screen for accepting the setting of the heating time by the heating unit HM that performs heating by remote setting. Hereinafter, the setting screen for accepting the setting of the heating time may also be referred to as the timer setting screen.

[0074] FIG. 13 is a diagram illustrating a heating power setting screen according to the first embodiment of the present disclosure. The heating power setting screen shown in FIG. 13 includes a heating power decrease mark 221D and a heating power increase mark 221U. The external device 200 receives an instruction to decrease the heating power by an operation such as tapping on the heating power decrease mark 221D. The external device 200 receives an instruction to increase the heating power by an operation on the heating power increase mark 221U. The heating power to be set for the heating unit HM is indicated in a heating power display area 223 on the heating power setting screen. In FIG. 13, "5" is indicated as the heating power to be set for the heating unit HM. An operation on the heating power decrease mark 221D decreases the heating power value displayed in the heating power display area 223. An operation on the heating power increase mark 221U increases the heating power value displayed in the heating power display area 223. In the first embodiment, the heating power displayed in the heating power display area 223 has an upper limit and a lower limit, and the upper limit is equal to the upper limit of the heating power for which the input operation unit 15 accepts an operation, and the lower limit is equal to the lower limit of the heating power for which the input operation unit 15 accepts an operation. The external device 200 accepts an instruction to set the magnitude of the heating power to the value displayed in the heating power display area 223 at the time of the operation on the heating power display area 223. When an operation such as a tap is performed on the heating power display area 223 in the state shown in FIG. 13 , the external device 200 accepts an instruction to set the heating power to 5.

[0075] FIG. 14 is a diagram illustrating a timer setting screen according to the first embodiment of the present disclosure. The timer setting screen shown in FIG. 14 includes a heating time reduction mark 222D and a heating time increase mark 222U. External device 200 accepts an instruction to shorten the heating time by tapping on heating time reduction mark 222D or other operation. External device 200 accepts an instruction to lengthen the heating time by operating heating time increase mark 222U. Note that in the first embodiment, by operating heating time reduction mark 222D and heating time increase mark 222U, the heating time can be changed in increments of 10 seconds to 1 minute up to 15 minutes, in increments of 5 to 10 minutes between 15 minutes and 30 minutes, and in increments of 10 to 15 minutes between 30 minutes and 90 minutes. However, the unit of change in the heating time is not limited to the above. Furthermore, the time range within which the unit of change in the heating time is changed is not limited to the above.

[0076] The heating time display area 224 on the timer setting screen shows the heating time to be set for the heating unit HM. In FIG. 14, "10 minutes" is shown as the heating time to be set for the heating unit HM. Operating the heating time decrease mark 222D shortens the heating time displayed in the heating time display area 224 by the above-mentioned unit. Operating the heating time increase mark 222U lengthens the heating time displayed in the heating time display area 224 by the above-mentioned unit. In the first embodiment, the heating time displayed in the heating time display area 224 has an upper and lower limit, and the upper limit is equal to the upper limit of the heating time accepted by the input operation unit 15, and the lower limit is equal to the lower limit of the heating time accepted by the input operation unit 15. The external device 200 accepts an instruction to set the time displayed in the heating time display area 224 at the time of operating the heating time display area 224 as the heating time for the heating unit HM. When an operation such as a tap is performed on the heating time display area 224 in the state shown in FIG. 14, the external device 200 receives an instruction to set the heating time to 10 minutes.

[0077] In addition to input via the images shown in FIGS. 12, 13, and 14, external device 200 may also accept numerical input. External device 200 may also accept instructions regarding heating power and heating time by accepting input of numerical values ​​indicating the heating power and heating time, respectively. In this case, external device 200 invalidates the accepted instruction regarding heating power if the heating power indicated by the input numerical value is outside the range of heating power accepted by input operation unit 15. Furthermore, external device 200 invalidates the accepted instruction regarding heating time if the input heating time is longer than the upper limit of heating time accepted by input operation unit 15, and invalidates the input instruction regarding heating time if the input heating time is shorter than the lower limit of heating time accepted by input operation unit 15.

[0078] The above has described the settings made to the cooking appliance 1 via a setting screen displayed on the external device 200 when the external device 200 is a smartphone, a tablet terminal, or the like. However, the external device 200, which is a smartphone, a tablet terminal, or the like, may also operate like the smart speaker described above, and the settings of the cooking appliance 1 may also be made by voice as described above.

[0079] FIG. 15 is a flowchart showing the processing flow of the cooking system 1a when the heat power of the cooker 1 according to the first embodiment of the present disclosure is remotely set. FIG. 16 is a flowchart showing the processing flow of the cooking system 1a when the heating time of the cooker 1 according to the first embodiment of the present disclosure is remotely set. And FIG. 17 is a flowchart showing the processing flow of the cooking system 1a when the extension of the heating time of the cooker 1 according to the first embodiment of the present disclosure is remotely set. Next, the remote setting processing for the cooker 1 according to the first embodiment will be described with reference to FIGS. 15 to 17. Here, in the cooker 1, the processing of FIGS. 15 to 17 performed by the cooker control unit 40 is mainly performed by the heating control unit 43. Note that in the processing flows exemplified in the following FIGS. 15 to 17, the cooker 1 transmits request information, timer information, heating status information, and the like to the external device 200 via the cloud server 300. Furthermore, the external device 200 transmits various instructions, including transmission instruction information, to the external device 200 via the cloud server 300. Furthermore, in the following processing, output by the external device 200 refers to audio output or display.

[0080] In step S1 of Fig. 15, the cooking appliance 1 receives an instruction to remotely set the heating power of the heating unit HM of the cooking appliance 1. Specifically, the cooking appliance 1 receives the instruction to remotely set the heating power by operating the input operation unit 15, such as the left start key 153L or right start key 153R described above, of the cooking appliance 1, or by receiving an instruction from an external device 200, such as a smartphone or tablet terminal. Note that the instruction from the external device 200 in this case includes information specifying the heating unit HM selected by a user's operation of the left setting area 210L or the right setting area 210R of the external device 200. When the cooking appliance control unit 40 (referred to as the control unit 40 in Figs. 15 to 17) of the cooking appliance 1 receives information specifying the left IH coil 9L, it may cause the individual light-emitting unit 21L to emit light, similar to when the left start key 153L is operated. When the control unit 40 receives information specifying the right IH coil 9R, it may cause the individual light-emitting unit 21R to emit light in the same manner as when the right start key 153R is operated.

[0081] In step S2, the cooking appliance 1 transmits request information about heating power to the external device 200. In particular, the control unit 40 controls the communication unit 51 to transmit request information requesting an instruction about heating power to the external device 200. Then, the communication unit 51 transmits the request information to the external device 200 in accordance with the control of the control unit 40. The external device 200 receives the request information.

[0082] In step S3, the external device 200 outputs the received request information. In step S4, the external device 200 accepts an instruction regarding the heating power. In step S5, the external device 200 transmits the accepted instruction to the cooking appliance 1. The communication unit 51 of the cooking appliance 1 receives the instruction. The control unit 40 may control the cooker notification unit 60 of the cooking appliance 1 to display or output by voice the heating power in the instruction received by the communication unit 51. In this case, when the selected heating unit HM is the left IH coil 9L, the control unit 40 may control the left heating power display unit 17L to display the heating power in the instruction. Alternatively, when the selected heating unit HM is the right IH coil 9R, the control unit 40 may control the right heating power display unit 17R to display the heating power in the instruction.

[0083] In step S6, the control unit 40 sets the heating power based on the instruction received by the communication unit 51 as the heating power of the heating unit HM. In step S7, the control unit 40 determines whether the input operation unit 15 of the heating cooker 1 has accepted an operation to instruct the start of heating during the period from when the heating power of the heating unit HM was set in step S6 until a predetermined waiting time for confirmation has elapsed. Specifically, the control unit 40 determines whether an operation has been performed on the left start key 153L or the right start key 153R before the waiting time for confirmation has elapsed. If the input operation unit 15 has not accepted an operation to instruct the start of heating before the waiting time for confirmation has elapsed (step S7: NO), in step S8, the control unit 40 ends acceptance of instructions regarding the heating power. At this time, the control unit 40 may control the cooker notification unit 60 to issue information indicating that acceptance of instructions regarding the heating power has ended.

[0084] In step S9, the cooking appliance 1 transmits information to the external device 200 indicating that it has finished accepting instructions about the heat power. In particular, the control unit 40 controls the communication unit 51 to transmit information about the end of acceptance of instructions about the heat power to the external device 200, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. The external device 200 then receives the information about the end of acceptance of instructions about the heat power by the cooking appliance 1. In step S10, the external device 200 outputs information about the end of acceptance of instructions about the heat power by the cooking appliance 1. After the process of step S10, the process of remotely setting the heat power in the cooking system 1a ends. Note that after the process of step S8, the cooking system 1a may end the process for remotely setting the heat power without performing the processes of steps S9 to S10.

[0085] If the input operation unit 15 receives an operation to start heating before the confirmation waiting time has elapsed (step S7: YES), in step S11, the control unit 40 controls the heating unit HM to perform heating at the heating power set by the control unit 40 in step S6. The heating unit HM starts heating at that heating power in accordance with the control of the control unit 40. After the processing of step S11, the cooking system 1a ends the processing for remotely setting the heating power.

[0086] In addition, in step S1, when the cooking appliance 1 receives information specifying the heating power together with information specifying the heating unit HM from the external device 200 such as a smartphone or tablet terminal, the cooking appliance 1 proceeds to step S6.

[0087] The process shown in Fig. 16 is executed after the process shown in Fig. 15. In step S21, the cooking appliance 1 receives an instruction to set a timer. In detail, the cooking appliance 1 receives an instruction to set a timer by operating the input operation unit 15, such as the left timer key 151L or the right timer key 151R of the cooking appliance 1. Alternatively, the cooking appliance 1 may receive an instruction to set a timer from the external device 200. When the left IH coil 9L of the cooking appliance 1 is selected and the communication unit 51 of the cooking appliance 1 receives an instruction to set a timer from the external device 200, the control unit 40 of the cooking appliance 1 may cause the corresponding individual light-emitting unit 21L in the cooking appliance 1 to emit light, in the same way as when the left timer key 151L is operated. When the right IH coil 9R of the cooking appliance 1 is selected and the communication unit 51 receives an instruction to set a timer from the external device 200, the control unit 40 may cause the corresponding individual light-emitting unit 21R in the cooking appliance 1 to emit light, in the same way as when the right timer key 151R is operated.

[0088] In step S21, the cooking appliance 1 transmits request information inquiring about the heating time to the external device 200. In particular, the communication control unit 44 of the control unit 40 controls the communication unit 51 to transmit the request information inquiring about the heating time to the external device 200. Then, the communication unit 51 transmits the request information to the external device 200 in accordance with the control of the control unit 40. The external device 200 receives the request information.

[0089] In step S23, the external device 200 outputs the received request information. In step S24, the external device 200 accepts an instruction regarding the heating time. In step S25, the external device 200 transmits the accepted instruction to the cooking appliance 1. The communication unit 51 receives the instruction. The control unit 40 may control the cooker notification unit 60 of the cooking appliance 1 to display or output by voice the heating time in the instruction received by the communication unit 51. In this case, when the selected heating unit HM is the left IH coil 9L, the control unit 40 may control the left heating power display unit 17L of the cooking appliance 1 to display the heating time in the instruction. Alternatively, when the selected heating unit HM is the right IH coil 9R, the control unit 40 may control the right heating power display unit 17R of the cooking appliance 1 to display the heating time in the instruction.

[0090] In step S26, the control unit 40 sets the heating time in the instruction received by the communication unit 51 as the heating time for the heating unit HM. In step S27, the control unit 40 determines whether the input operation unit 15 of the cooking appliance 1 has accepted an operation to instruct the start of a countdown of the heating time between when the control unit 40 set the heating time in step S26 and when the confirmation wait time has elapsed. Specifically, the control unit 40 determines whether an operation has been performed on the left timer key 151L or the right timer key 151R of the cooking appliance 1 before the confirmation wait time has elapsed. If the input operation unit 15 has not accepted an operation to instruct the start of a countdown of the heating time before the confirmation wait time has elapsed (step S27: NO), in step S28, the control unit 40 ends acceptance of instructions regarding the heating time. At this time, the control unit 40 may control the cooking appliance notification unit 60 to issue information indicating that acceptance of instructions regarding the heating time has ended.

[0091] In step S29, the cooking appliance 1 transmits information to the external device 200 indicating that it has finished accepting the instruction regarding the heating time. In particular, the control unit 40 controls the communication unit 51 to transmit information indicating that it has finished accepting the instruction regarding the heating time to the external device 200, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. The external device 200 then receives the information indicating that the cooking appliance 1 has finished accepting the instruction regarding the heating time. In step S30, the external device 200 outputs information indicating that the cooking appliance 1 has finished accepting the instruction regarding the heating time. After the process of step S30, the process of remotely setting the heating time in the cooking system 1a ends. Note that after the process of step S28, the cooking system 1a may end the process for remotely setting the heating time without performing the processes of steps S29 to S30.

[0092] If the input operation unit 15 receives an instruction to start counting down the heating time before the fixed waiting time has elapsed (step S27: YES), in step S31, the control unit 40 controls the heating unit HM to perform heating for the heating time set in step S26. After the process of step S31, the cooking system 1a ends the process for remotely setting the heating time.

[0093] In the first embodiment, the processes of step S21 and subsequent steps are performed after the process of step S11 shown in FIG. 15 , but the processes of step S21 and subsequent steps may also be performed after step S6. In this case, in step S27, the control unit 40 may determine whether the input operation unit 15, such as the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, has accepted an operation before the confirmation wait time has elapsed. In this case, if the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, has accepted an operation before the confirmation wait time has elapsed (step S27: YES), in step S31, the control unit 40 causes the heating unit HM to start heating at the heating power set in step S6. Then, in step S31, the control unit 40 controls the heating unit HM to perform heating for the heating time set in step S26. If the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, etc. does not accept operation before the confirmation waiting time has elapsed (step S27: NO), the cooking system 1a performs the process of step S28.

[0094] In step S21, if the cooking device 1 receives an instruction for setting a timer together with an instruction for a heating time from the external device 200, such as a smartphone or a tablet terminal, the cooking device 1 proceeds to step S26. In addition, in step S1, if the cooking device 1 receives information specifying the heating time together with information specifying the heating unit HM and the heating power, the cooking device 1 proceeds to step S26.

[0095] The process shown in FIG. 17 is executed after the process shown in FIG. 16. In step S40, the control unit 40 of the cooking appliance 1 determines whether a predetermined event has occurred. The event may be when the communication unit 51 of the cooking appliance 1 receives, from the external device 200, transmission instruction information instructing the communication unit 51 to transmit timer information corresponding to the remaining time of the heating time set by the timer. Alternatively, the remaining time of the timer set in the cooking appliance 1 is the advance notice time. Alternatively, the timer may have expired. If the predetermined event has not occurred (step S40: NO), the cooking appliance 1 returns the process to step S40. If the predetermined event has occurred (step S40: YES), in step S41, the control unit 40 determines whether the event that has occurred is the expiration of the timer. If the event that has occurred is the expiration of the timer (step S41: YES), in step S45 (described later), the cooking appliance 1 transmits to the external device 200 timer information indicating the expiration of the heating time and request information inquiring whether the heating time needs to be extended, i.e., whether the timer needs to be reset. If the event that has occurred is not the expiration of the timer (step S41: NO), in step S42, the cooking appliance 1 transmits timer information to the external device 200 based on the transmission instruction information. In detail, the control unit 40 controls the communication unit 51 to transmit the timer information to the external device 200 based on the transmission instruction information, and the communication unit 51 transmits the timer information to the external device 200 in accordance with the control of the control unit 40. The external device 200 receives the timer information. The control unit 40 may control the display unit 16 or the audio notification unit 50 of the cooking appliance 1 to notify the external device 200 of the timer information transmitted by the communication unit 51.

[0096] The transmission instruction information may include an instruction to transmit heating status information indicating the heating status of the heating unit HM of the cooking appliance 1. In this case, in step S42, the cooking appliance 1 transmits the heating status information to the external device 200. The control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the external device 200 of the heating status information transmitted by the communication unit 51. The external device 200 that has received the heating status information outputs the heating status information.

[0097] In step S43, the external device 200 outputs timer information. In step S44, the control unit 40 determines whether the heating time has expired. If the heating time has not expired (step S44: NO), the cooking appliance 1 returns the process to step S40. If the heating time has expired (step S44: YES), in step S45, the cooking appliance 1 transmits to the external device 200 timer information indicating the expiration of the heating time and request information inquiring whether the heating time needs to be extended, i.e., whether the timer needs to be reset. In detail, the control unit 40 controls the communication unit 51 to transmit to the external device 200 the timer information indicating the expiration of the heating time and the request information inquiring whether the timer needs to be reset. The external device 200 receives the timer information and the request information in accordance with control from the control unit 40. In step S45, the cooking appliance 1 may transmit request information to the external device 200 requesting an instruction regarding the heat power.

[0098] In step S46, the external device 200 outputs the timer information and request information received in step S45. In step S47, the external device 200 accepts an instruction to reset the timer. In step S47, the external device 200 may accept an instruction indicating the length of the heating time to be extended, along with the instruction to reset the timer. In step S48, the external device 200 transmits the instruction to reset the timer to the cooking appliance 1.

[0099] If the external device 200 has received an instruction indicating the length of the heating time to be extended in step S47, then in step S48 the external device 200 transmits an instruction to reset the timer and an instruction indicating the length of the heating time to be extended to the cooking appliance 1. If the external device 200 has received an instruction to reset the timer in step S47 but has not received an instruction regarding the length of the heating time to be extended, then in step S48 the external device 200 transmits an instruction to reset the timer to the cooking appliance 1. Then, the external device 200 receives request information from the cooking appliance 1 inquiring about the length of the heating time to be extended. Furthermore, the external device 200 receives an instruction regarding the length of the heating time extension from the user, and transmits the instruction regarding the length of the heating time extension to the cooking appliance 1.

[0100] In step S47, external device 200 may receive an instruction regarding the heating power at the same time as the instruction regarding the timer. In this case, external device 200 transmits the instruction regarding the heating power to cooking appliance 1 in step S48.

[0101] In step S49, control unit 40 determines whether communication unit 51 has received an instruction to reset the timer from external device 200 during the period from when cooking appliance 1 transmitted request information inquiring about whether the timer needs to be reset in step S45 until the instruction standby time has elapsed. If communication unit 51 has not received an instruction to reset the timer before the instruction standby time has elapsed (step S49: NO), control unit 40 ends acceptance of the instruction to extend the heating time in step S50. At this time, control unit 40 may control cooker notification unit 60 to issue information indicating that acceptance of the instruction to extend the heating time has ended.

[0102] In step S51, the cooking appliance 1 transmits to the external device 200 information indicating that it has finished accepting the instruction to extend the heating time. In particular, the control unit 40 controls the communication unit 51 to transmit to the external device 200 information indicating that it has finished accepting the instruction to extend the heating time, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. The external device 200 then receives the information indicating that the cooking appliance 1 has finished accepting the instruction to extend the heating time. In step S52, the external device 200 outputs information indicating that the cooking appliance 1 has finished accepting the instruction to extend the heating time. After the process of step S52, the process for remotely setting an extension of the heating time in the cooking system 1a ends. Note that after the process of step S50, the cooking system 1a may terminate the process for remotely setting an extension of the heating time without performing the processes of steps S51 to S52.

[0103] If the communication unit 51 receives an instruction to reset the timer before the instruction standby time has elapsed (step S49: YES), the control unit 40 resets the timer in step S53. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify that the timer has been reset. Specifically, if the left IH coil 9L is selected as the heating unit HM, the control unit 40 may cause the corresponding individual light-emitting unit 21L in the cooking appliance 1 to emit light. Note that, when the communication unit 51 receives an instruction to reset the timer in step S49, it is assumed that the communication unit 51 has received an instruction to extend the heating time simultaneously with the instruction to reset the timer, or before or after the instruction to reset the timer.

[0104] In step S49, if the communication unit 51 receives an instruction to reset the timer along with an instruction regarding the length of the extended heating time before the instruction standby time has elapsed, then in step S53, the control unit 40 extends the heating time of the heating unit HM by the instructed heating time. Even if the communication unit 51 receives an instruction to reset the timer before the instruction standby time has elapsed and receives an instruction regarding the length of the extended heating time before or after receiving the instruction to reset the timer, the control unit 40 also extends the heating time of the heating unit HM by the instructed heating time in step S53. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the user of the extended heating time. Specifically, if the left IH coil 9L is selected as the heating unit HM, the control unit 40 may cause the left heating power display unit 17L of the cooking appliance 1 to display the extended heating time.

[0105] In step S49, if the communication unit 51 receives an instruction regarding the heating power together with an instruction to reset the timer before the instruction waiting time has elapsed, then in step S53 the control unit 40 sets the heating power of the heating unit HM to the instructed heating power. If the communication unit 51 receives an instruction to reset the timer before the instruction waiting time has elapsed and receives an instruction regarding the heating power before or after receiving the instruction to reset the timer, then in step S53 the control unit 40 sets the heating power of the heating unit HM to the instructed heating power. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the user of the set heating power. Specifically, if the left IH coil 9L is selected as the heating unit HM, the control unit 40 may cause the left heating power display unit 17L to display the set heating power.

[0106] In step S54, the control unit 40 determines whether the input operation unit 15 of the cooking appliance 1 has accepted an operation to confirm the resetting of the timer during the period from when the timer was reset in step S53 until the confirmation waiting time has elapsed. Specifically, the control unit 40 determines whether the left timer key 151L or the right timer key 151R on the cooking appliance 1 has been operated before the confirmation waiting time has elapsed. If the input operation unit 15 has not accepted an operation to confirm the resetting of the timer before the confirmation waiting time has elapsed (step S54: NO), the cooking system 1a ends the processing for remotely executing the setting of an extension of the heating time after the processing of steps S50 to S52 or after the processing of step S50.

[0107] If the input operation unit 15 receives an operation to reset the timer before the confirmed waiting time has elapsed (step S54: YES), in step S55, the control unit 40 controls the heating unit HM to perform heating for the extended heating time.

[0108] Note that after step S48, if communication unit 51 has not received an instruction regarding the heating power before step S54, then in step S55, control unit 40 controls heating unit HM to perform heating at the same heating power as before it was determined in step S44 that the heating time had expired. On the other hand, if communication unit 51 receives an instruction regarding the heating power after step S48 but before step S54, then in step S55, control unit 40 controls heating unit HM to perform heating at the heating power specified in the instruction received by communication unit 51. After the processing of step S55, the heating time extension process by cooking system 1a ends.

[0109] During the confirmation waiting time in step S54, if the input operation unit 15 receives a change instruction to change the instruction from the external device 200 instead of an operation to confirm the resetting of the timer, the cooking device 1 operates based on the change instruction. After the operation by the cooking device 1, the cooking system 1a ends the process for extending the heating time.

[0110] The processes of steps S40 to S43 in FIG. 17 may be omitted as necessary depending on the settings of the cooking appliance 1, for example, when the user only wants to be notified that the heating time has expired.

[0111] In the above description, the display unit 16 or the audio notification unit 50 is provided in the cooking appliance 1, but the cooking system 1a may be configured so that the external device 200 issues the notification. Alternatively, the notification may be provided by both the cooking appliance 1 and the external device 200.

[0112] As described above, in the cooking system 1a of the first embodiment, not only can the cooking appliance 1 send a signal to the external device 200 to notify the cooking appliance 1 of its status, but also the external device 200 can send a signal such as an instruction to the cooking appliance 1 via the network 202 or the like. Therefore, the external device 200 of the first embodiment can remotely control the cooking appliance 1. Furthermore, the external device 200 can set the cooking time of the cooking appliance 1.

[0113] Here, the cooking appliance 1 of the first embodiment has a power-off prevention function to prevent continued heating due to the user forgetting to turn it off and ensure safety. The power-off prevention function is a function that forcibly stops heating when a power-off prevention time has elapsed, during which cooking continues without any operation when not using a timer. The power-off prevention time is a predetermined time, such as 45 minutes. In the cooking system 1a of the first embodiment, the cooking appliance 1 sends a signal related to a power-off prevention advance notice to the external device 200 at a first set time. Then, when an instruction to extend the heating time is received from the external device 200, the cooking appliance 1 extends the heating time. Here, the first set time is a time shorter than the power-off prevention time.

[0114] FIG. 18 is a diagram showing an example of a time chart of each unit related to power-off prevention in the cooking system 1a according to the first embodiment of the present disclosure. FIG. 18 describes an example in which the user does not perform an operation to extend the power-off prevention function. Here, the user operates the input keys on the right operation unit 15R to cook the food placed on the right heating port 4R. At this time, in the cooker 1, the heating control unit 43 of the cooker control unit 40 drives the inverter circuit (not shown) to supply power to the right IH coil 9R and heat the food. Here, the operation of the cooker 1 is not limited to the operation of the input operation unit 15; as described above, the user may operate the cooker 1 from the external device 200.

[0115] The user operates the right start key 153R on the right operation unit 15R (D01). The heating control unit 43 of the cooking appliance control unit 40 outputs a signal commanding heating at power level 5 to the corresponding inverter circuit (B101), and the right IH coil 9R, which serves as the heat source for heating the food, heats the food (C01). At this time, 1000 W of power is supplied to the inverter circuit, supplying power corresponding to power level 5 (A01). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R by an amount corresponding to power level 5 to display the heating power (E01). The audio notification unit 50 issues a voice notification saying, "Heating will begin. Heat level 5" (F01). At this timing, the timer unit 52 of the cooking appliance control unit 40 starts counting (timekeeping) the warning to prevent forgetting to turn off (B201). Here, the expiration time of the count in the warning to prevent forgetting to turn off, which is the first set time, is, for example, 40 minutes.

[0116] While the food is being heated, the user operates the right heat decrease key 154R on the right operation unit 15R (D02). The heating control unit 43 of the cooking appliance control unit 40 outputs a signal commanding heating at heat level 3 to the corresponding inverter circuit (B102), and the right IH coil 9R heats the food (C02). At this time, 500 W of power is supplied to the inverter circuit, supplying power corresponding to heat level 3 (A02). The right heat level display unit 17R also illuminates the right heat level display light-emitting unit 170R by an amount corresponding to heat level 3 to display the heat level (E02). The audio notification unit 50 also issues a voice notification saying, "Heat level 3" (F02). Then, as a result of the operation, the timer unit 52 of the cooking appliance control unit 40 resets the count of the warning to prevent forgetting to turn off and starts counting again (B201).

[0117] When 40 minutes has elapsed, which is the expiration time of the power-off prevention warning count, the timer unit 52 starts counting for the power-off prevention stop (B202). Here, the power-off prevention time is set to the sum of the first setting time and the stop setting time, which is the expiration time of the count for the power-off prevention stop. Therefore, in this case, the stop setting time is 5 minutes. Furthermore, the communication unit 51 transmits a power-off prevention warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

[0118] The external device communication unit 230 of the external device 200 receives a signal for a warning notice to prevent forgetting to turn off (L01). The external device display unit 220 displays an indication of extended standby based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 also issues a voice notification saying, "The right IH forgetting to turn off function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation. If you want to continue heating, please perform the extension operation." (K01). The external device control unit 240 then waits to receive a signal for an extension operation or a stop operation from the external device input operation unit 210 (H01). Here, the standby time for the external device control unit 240 to wait for reception is assumed to be the same as the set stop time.

[0119] The timer unit 52 stops counting when the set stop time of 5 minutes has elapsed. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B103), causing heating by the right IH coil 9R to stop. The right display unit 16R also displays a message that the power-off prevention function is in progress (E03). The audio notification unit 50 issues a voice message saying, "Power-off prevention function has been activated" (F03).

[0120] As described above, in the cooking appliance 1 and cooking system 1a according to the first embodiment, the cooking appliance control unit 40 issues a power-off prevention advance notice to the external device 200 when the first set time has elapsed since the input operation unit 15 performed an operation related to the heating setting, before the power-off prevention function is activated. Therefore, even if the user is away from the cooking appliance 1, the user can be alerted that heating will be stopped due to the power-off prevention function. This provides a cooking appliance 1 that is convenient and easy to use for the user. The cooking appliance control unit 40 then stops heating by the right IH coil 9R without issuing an extension notice when the set stop time has elapsed, based on the power-off prevention stop count that begins after issuing the power-off prevention advance notice. This allows the power-off prevention function to function.

[0121] Fig. 19 is a diagram showing an example of a time chart of each part related to the extension operation of the power-off prevention in the cooking system 1a according to the first embodiment of the present disclosure. Fig. 19 illustrates an example in which the user performs the extension operation in response to the power-off prevention notice when heating is performed with the heating power set to 6 or less.

[0122] In the cooker 1, the right IH coil 9R heats the food at heating power 3 under the control of the heating control unit 43 of the cooker control unit 40 (C02). At this time, 500 W of power is supplied, and power corresponding to heating power 3 is supplied to the inverter circuit (A02). Also, the right heating power display unit 17R illuminates the right heating power display light-emitting unit 170R by an amount corresponding to heating power 3 to display this (E02). And the timer unit 52 of the cooker control unit 40 is currently counting the warning to prevent forgetting to turn off (B201).

[0123] When the timer 52 reaches 40 minutes, which is the expiration time of the power-off prevention warning count, the timer 52 starts the power-off prevention stop (B202). In addition, the communication unit 51 transmits a warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

[0124] The external device communication unit 230 of the external device 200 receives the advance notice signal (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication that extension is on standby based on the signal from the external device control unit 240 (J01). Based on the signal from the external device control unit 240, the external device audio notification unit 260 issues an audio notification saying, "The right IH off prevention function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation, or if you want to continue heating, please perform the extension operation" (K01).

[0125] When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I11), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 transmits an extension notification signal based on the signal from the external device control unit 240 (L11). Also, the external device display unit 220 displays an indication that an extension notification has been sent based on the signal from the external device control unit 240 (J11). Then, the external device audio notification unit 260 issues a voice notification saying "An extension to prevent forgetting to turn off will be sent" based on the signal from the external device control unit 240 (K11).

[0126] The communication unit 51 receives an extension notification signal from the external device 200 (G11). In the cooking appliance control unit 40 that received the extension notification, the timer unit 52 counts the off-prevention warning extension (B211). Here, the second set time set for the extension, which is the expiration time of the count for the off-prevention warning extension, is divided into different time periods depending on the heating power setting of the heating source. For example, if the threshold heating power for distinguishing the second set time is between heating power 6 or less and heating power 7 or more, the expiration time when heating is performed at heating power 6 or less is, for example, 30 minutes. In this example, heating of the right IH coil 9R is performed at heating power 3, so the second set time is 30 minutes. Then, the audio notification unit 50 issues a voice notification saying, "The off-prevention warning will be extended" based on the signal from the cooking appliance control unit 40 (F11). However, this is not limited to this, and the audio notification unit 50 does not necessarily have to notify of the extension.

[0127] When the expiration time of the power-off prevention notice extension count reaches 30 minutes, the timer unit 52 starts counting the power-off prevention stop (B202). The communication unit 51 transmits a power-off prevention notice signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

[0128] The external device communication unit 230 of the external device 200 receives the advance notice signal (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication that extension is on standby based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues an audio notification saying, "The right IH off prevention function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation, or if you want to continue heating, please perform the extension operation" (K01).

[0129] The timer unit 52 stops counting when the power-off prevention stop count reaches its expiration time of 5 minutes. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B103), causing the right IH coil 9R to stop heating. The right display unit 16R also displays a message that the power-off prevention function is in progress (E03). Here, the audio notification unit 50 does not emit a sound, but it may instead emit a sound saying "Power-off prevention function has been activated," as in F03 described above.

[0130] Here, if the communication environment, the specifications of the external device 200, etc. do not notify the external device 200 that the power-off prevention function has been activated and heating has stopped, the external device display unit 220 continues to display the message indicating that the cooking appliance is on standby for an extended period of time. At this time, even though the power-off prevention function has been activated in the cooking appliance 1 and heating has stopped, there is a possibility that the user may perform an operation to extend the cooking appliance time.

[0131] When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I12), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 transmits a signal of an extension notification based on the signal from the external device control unit 240 (L11). Furthermore, the external device display unit 220 displays an indication that an extension notification has been sent based on the signal from the external device control unit 240 (J11).

[0132] The communication unit 51 receives an extension notification signal from the external device 200 (G11). However, the power-off prevention function is activated. Therefore, the audio notification unit 50 issues a voice message saying, "The extension operation is invalid," based on the signal from the cooking appliance control unit 40 (F12).

[0133] In this way, in the cooking appliance 1 and cooking system 1a according to the first embodiment, if an extension notification is sent before the set stop time, which is the expiration time of the power-off prevention stop count, the cooking appliance control unit 40 continues heating the right IH coil 9R even after the power-off prevention time has elapsed. Therefore, by the user instructing an extension of heating, unintentional stopping of heating can be prevented, improving usability.

[0134] Furthermore, in the cooking appliance 1 and cooking system 1a according to the first embodiment, the external device 200 not only issues a warning notice to prevent forgetting to turn off, but also allows the user to perform an extension operation from the external device input operation unit 210 and issues an extension notice to the cooking appliance 1 in support of an extension. This provides user-friendliness.

[0135] Furthermore, in the cooking appliance 1 and cooking system 1a according to the first embodiment, the cooking appliance control unit 40 stops heating by the right IH coil 9R when a second set time has elapsed since the extension notification was sent. Even if an extension operation is performed, the safety of the cooking appliance 1 can be improved by activating the power-off prevention function. Furthermore, before the second set time has elapsed, a power-off prevention advance notification is sent again to the external device 200. This allows the user to be alerted again that heating will be stopped due to power-off prevention and to extend the time, improving usability.

[0136] Here, when heating by the right IH coil 9R stops due to the power-off prevention function, the cooker control unit 40 disables signals from the external device 200 related to setting the heat power and turning the heat on. This requires the user to check the status of the pot and the heated object near the cooker 1 in order to heat the object again. This prevents the external device 200 from starting heating without the user checking if the pot and the object are in an abnormal state, such as when there is no moisture in the pot or the object. Here, the cooker 1 is described as not sending a signal to the external device 200 indicating that operations such as setting the heat power from the external device 200 are disabled after the power-off prevention function has been enabled, but this is not limited to this. The cooker 1 may send a signal to the external device 200, and the external device 200 may notify the user that the operation is disabled due to the activation of the power-off prevention function.

[0137] Fig. 20 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off when the heating power is high in the heating cooking system 1a according to the first embodiment of the present disclosure. Fig. 20 illustrates an example in which the user performs an extension operation in response to the warning to prevent forgetting to turn off when heating is performed at a heating power of 7 or more.

[0138] In the cooking appliance 1, the right IH coil 9R heats the food at heating power 7 under the control of the heating control unit 43 of the cooking appliance control unit 40 (C21). At this time, 2000 W of power is supplied, and power corresponding to heating power 7 is supplied to the inverter circuit (A21). Also, the right heating power display unit 17R displays the right heating power display light-emitting unit 170R by illuminating the amount corresponding to heating power 7 (E21). And the timer unit 52 of the cooking appliance control unit 40 is currently counting the warning to prevent forgetting to turn off (B201).

[0139] When the first set time of 40 minutes has elapsed in the power-off prevention warning count, the timing unit 52 starts counting to stop the power-off prevention (B202). Furthermore, the communication unit 51 transmits a power-off prevention warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

[0140] The external device communication unit 230 of the external device 200 receives a signal for a warning notice to prevent forgetting to turn off (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication that extension is on standby based on the signal from the external device control unit 240 (J01). Based on the signal from the external device control unit 240, the external device audio notification unit 260 issues a voice notification saying, "The right IH forgetting prevention function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation, or if you want to continue heating, please perform the extension operation" (K01).

[0141] When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I11), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 sends an extension notification signal based on the signal from the external device control unit 240 (L11). Furthermore, the external device display unit 220 displays an indication that an extension notification has been sent based on the signal from the external device control unit 240 (J21). Here, when heating is being performed at high heat, the external device display unit 220 also displays an indication of high heat warning. Then, based on the signal from the external device control unit 240, the external device audio notification unit 260 issues an audio notification saying, "An extension to prevent forgetting to turn off will be sent. Heating is being performed at high heat. Please check the state of the pot and reduce the heat" (K21).

[0142] The communication unit 51 receives an extension notification signal from the external device 200 (G11). In the cooking appliance control unit 40 that has received the extension notification, the timer unit 52 counts the extension of the warning to prevent forgetting to turn off (B221). Here, the expiration time when heating is performed at a heat level of 7 or higher is, for example, 15 minutes. Then, based on the signal from the cooking appliance control unit 40, the audio notification unit 50 issues an audio notification saying, "The power-off prevention will be extended. Heating is being performed at high heat level. Please check the state of the pot and reduce the heat level." (F21). Depending on the communication environment, the notification from the external device 200 may be delayed. Therefore, when extending the power-off prevention notification, particularly when heating at high heat level, a notification urging a change in heat level is made not only by the external device 200 but also by the cooking appliance 1, thereby ensuring more reliable notification.

[0143] When the timer 52 reaches the expiration time of 15 minutes for the power-off prevention notice extension count, the timer 52 starts counting for the power-off prevention stop (B202). The communication unit 51 transmits a power-off prevention notice signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

[0144] The external device communication unit 230 of the external device 200 receives a signal for a warning notice to prevent forgetting to turn off (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication that extension is on standby based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues a voice notification saying, "The right IH forgetting to turn off function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation, or if you want to continue heating, please perform the extension operation" (K01).

[0145] When a signal related to a stop operation is sent from the external device input operation unit 210 based on an instruction from the user (I21), the external device control unit 240 stops the extended standby. Then, the external device communication unit 230 transmits a stop notification signal based on the signal from the external device control unit 240 (L21). Also, the external device display unit 220 displays a message indicating that a stop notification has been sent based on the signal from the external device control unit 240 (J22). Then, the external device audio notification unit 260 issues a voice message saying "Sending a message to stop heating" based on the signal from the external device control unit 240 (K22).

[0146] The communication unit 51 receives a stop notification signal from the external device 200 (G21). The heating control unit 43 of the cooking appliance control unit 40, which has received the stop notification, outputs a heating stop command signal to the corresponding inverter circuit (B103), causing the right IH coil 9R to stop heating. The right display unit 16R also displays a message indicating that the stop is due to an operation from the external device 200 (E22). The audio notification unit 50 issues a voice notification saying, "The heating of the right IH has been stopped by an operation from the external device" (F22).

[0147] As described above, in the cooker 1 and cooking system 1a according to the first embodiment, when the timer 52 of the cooker control unit 40 counts the time for extending the warning to prevent forgetting to turn off, the second set time varies depending on the set heating power of the right IH coil 9. When an object to be heated is heated at a high set heating power of 7 or higher, which is equal to or higher than the threshold, prolonged heating can easily cause the moisture in the pan to disappear, resulting in an empty-baking state. For this reason, safety can be improved by making the forget-to-turn-off prevention function work earlier when the set heating power is high.

[0148] At this time, the cooker notification unit 60 including the audio notification unit 50 issues a notification urging the user to change the heat setting, thereby urging the user to lower the heat setting, preventing the user from forgetting to turn off the unit and causing the food to burn empty, thereby improving safety. Here, a notification may be issued asking whether or not to change the heat setting. In particular, issuing a notification urging the user to change the heat setting from the cooker 1 can ensure more reliable notification.

[0149] In the cooking appliance 1 and cooking system 1a according to the first embodiment, the cooking appliance control unit 40 stops heating of the right IH coil 9R when a stop notification is sent before the set stop time, which is the expiration time of the power-off prevention stop count. This allows the heating to be stopped safely in response to a user's operation to stop heating.

[0150] Furthermore, in the cooking appliance 1 and cooking system 1a according to the first embodiment, the user can perform a stop operation from the external device input operation unit 210, and a stop notification can be sent from the external device 200 to the cooking appliance 1. In this way, the user can perform an extended stop operation from the external device 200 to prevent forgetting to turn off the cooking appliance 1, so that even if the user has forgotten that they are heating, the cooking appliance can be quickly stopped, which is convenient.

[0151] Embodiment 2 FIG. 21 is a diagram showing an example of a time chart of each part related to power-off prevention in the cooking system 1a according to the second embodiment of the present disclosure. In the cooking appliance 1 and cooking system 1a according to the second embodiment, an example will be described in which heating is performed again after the user does not extend the power-off prevention notice. In the second embodiment, too, the user operates the keys on the right operating unit 15R to cook the food placed on the right heating port 4R. The cooking appliance 1 drives an inverter circuit (not shown) to supply power to the right IH coil 9R and heat the food. However, the user may also perform operations from the external device 200.

[0152] The user operates the right start key 153R on the right operation unit 15R (D51). The heating control unit 43 of the cooking appliance control unit 40 outputs a heating command signal at heat level 5 to the corresponding inverter circuit (B151), and the right IH coil 9R heats the food (C51). At this time, 1000 W of power is supplied, and power corresponding to heat level 5 is supplied to the inverter circuit (A51). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R by an amount corresponding to heat level 5, thereby displaying the heating power (E51). The audio notification unit 50 issues an audio notification saying, "Heating will begin. Heat level 5" (F51). At this timing, the timer unit 52 of the cooking appliance control unit 40 starts counting (timekeeping) the warning to prevent forgetting to turn off (B251). Here too, the heating time (45 minutes) until the power-off prevention function works is set to, for example, 40 minutes, while the expiration time of the count in the power-off prevention notice is set to, for example, 40 minutes.

[0153] While the food is being heated, the user operates the right heat decrease key 154R on the right operation unit 15R (D52). The heating control unit 43 of the cooking appliance control unit 40 outputs a heating command signal at heat level 3 to the corresponding inverter circuit (B152), and the right IH coil 9R heats the food (C52). At this time, 500 W of power is supplied to the inverter circuit, supplying power corresponding to heat level 3 (A52). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R by an amount corresponding to heat level 3 to display the heating power (E52). The audio notification unit 50 issues an audio notification saying, "Heat level 3" (F52). At this timing, the timer unit 52 of the cooking appliance control unit 40 resets the count of the warning to prevent forgetting to turn off the power and starts counting again (B251).

[0154] When the timer 52 reaches 40 minutes, which is the expiration time of the power-off prevention warning count, it starts counting for power-off prevention stop (B252). Here, the expiration time of the count for power-off prevention stop is, for example, 5 minutes. Furthermore, the communication unit 51 transmits a warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G51).

[0155] The external device communication unit 230 of the external device 200 receives the advance notice signal (L51). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H51). Furthermore, the external device display unit 220 displays an indication that extension is on standby based on the signal from the external device control unit 240 (J51). The external device audio notification unit 260 issues a voice notification saying, "The right IH off prevention function will be activated in 5 minutes. If you want to stop heating immediately, please perform the stop operation, or if you want to continue heating, please perform the extension operation" (K51).

[0156] The timer unit 52 stops counting when the power-off prevention stop count reaches its expiration time of 5 minutes. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B153), causing the right IH coil 9R to stop heating. The right display unit 16R also displays a message that the power-off prevention function is in progress (E53). The audio notification unit 50 issues a voice message saying, "Power-off prevention function has been activated" (F53).

[0157] When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I51), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 transmits an extension notification signal based on the signal from the external device control unit 240 (L52). Also, the external device display unit 220 displays an indication that an extension notification has been sent based on the signal from the external device control unit 240 (J52). Then, the external device audio notification unit 260 issues a voice notification saying, "An extension to prevent forgetting to turn off will be sent" based on the signal from the external device control unit 240 (K52).

[0158] The communication unit 51 receives an extension notification signal from the external device 200 (G52). The heating control unit 43 of the cooking appliance control unit 40 outputs a heating command signal to the corresponding inverter circuit (B152), and the right IH coil 9R heats the food (C51). At this time, the heating control unit 43 outputs a heating command signal to heat the food at heating power 3, which was the power level when the power-off prevention function was activated. At this time, 500 W of power is supplied to the inverter circuit, and power corresponding to heating power 3 is supplied (A52). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R by an amount corresponding to heating power 3, thereby displaying the heating power (E52). Based on the signal from the cooking appliance control unit 40, the audio notification unit 50 issues an audio notification saying, "Heating will resume" (F54). The timer unit 52 of the cooking appliance control unit 40 then resets the power-off prevention warning count and starts counting again (B251).

[0159] Thus, in the cooker 1 and cooking system 1a according to the second embodiment, when the cooker control unit 40 stops heating in the right IH coil 9 to prevent forgetting to turn it off and then receives an extension notification signal from the communication unit 51, it resumes heating at the heating power set before the stop. This allows the cooker 1 to resume heating even if the user unintentionally stops heating. In this case, by resuming heating at the heating power set before the stop, the user can omit the heating power setting, which is convenient.

[0160] Embodiment 3 The cooking device 1 in the first and second embodiments has been described as an electromagnetic induction cooking device, but is not limited to this and can also be applied to a rice cooker, a microwave oven, a gas cooker, etc.

[0161] Furthermore, in the cooking systems of the first and second embodiments described above, the cooker 1 has been described as communicating with the external device 200 via the wireless router 400 and the cloud server 300, but this is not limited to this. The communication unit 51 of the cooker 1 and the external device communication unit 230 of the external device 200 may communicate by directly sending and receiving signals. Furthermore, although the communication unit 51 of the cooker control unit 40 and the wireless router 400 have been described as being connected by wireless communication, they may also be connected by wire.

[0162] Various aspects of the present disclosure are summarized below as appendices.

[0163] (Appendix 1) a heat source that heats the object to be heated; an input operation unit for setting the heating of the heat source; a control unit that sets a set heating power of the heating source in accordance with a setting of the input operation unit and controls the heating source; a cooking appliance communication unit that communicates with external devices; Equipped with The control unit of the heating cooker causes the cooker communication unit to transmit a power-off prevention warning notification signal, which warns of the power-off prevention, to the external device when a first set time, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, has elapsed since an operation related to heating settings was performed from the input operation unit. (Appendix 2) The cooking device according to claim 1, wherein the control unit continues heating the heating source even after the power-off prevention time has elapsed when an extension notification is sent to extend the heating stop after the cooking device communication unit sends the power-off prevention advance notification signal. (Appendix 3) The cooking device according to claim 2, wherein the control unit stops heating of the heat source when a second set time set for extension has elapsed since the extension notification was given. (Appendix 4) The cooking device according to claim 3, wherein the second set time is set to a different time based on the set heating power set in the heat source. (Appendix 5) a cooking appliance notification unit that issues a notification based on a signal from the control unit; The heating cooker according to any one of Supplementary Note 2 to Supplementary Note 4, wherein, after the extension notification is given, the control unit determines that the set heat power of the heating source is equal to or greater than a predetermined threshold, and sends a signal to the cooker notification unit to prompt the change of the set heat power. (Appendix 6) The heating cooker according to claim 3 or 4, wherein the control unit causes the cooker communication unit to transmit the power-off prevention advance notification signal before the second set time elapses. (Appendix 7) The cooking device according to any one of appendices 1 to 6, wherein the control unit stops heating of the heating source when it receives a stop notification from the cooking device communication unit after sending the power-off prevention advance notification signal. (Appendix 8) The heating cooker according to any one of Appendices 2 to 7, wherein the control unit does not accept signals related to heat setting and heat ON operation from the external device sent after the elapse of a preset stop setting time if the extension notification is not sent and the preset stop setting time has elapsed. (Appendix 9) The cooking device according to any one of appendices 1 to 8, wherein, after stopping the heating of the heat source, when a signal related to an extension notification is sent from the cooking device communication unit, the control unit resumes heating of the heat source at the set heating power of the heat source before stopping. (Appendix 10) a cooking device including a heat source for heating an object to be heated, an input operation unit for setting the heating of the heat source, a cooking device control unit for setting the set heating power of the heat source according to the setting of the input operation unit and for controlling the heat source, and a cooking device communication unit for communicating with the outside; an external device including an external device communication unit that communicates with the cooking appliance, an external device input operation unit that receives operations, an external device control unit that performs processing based on operations input from the external device input operation unit, and an external device notification unit that issues a notification based on a signal from the external device control unit; Equipped with The cooking appliance control unit is a heating and cooking system that, when a first set time has elapsed since an operation related to heating settings was performed from the input operation unit, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, causes the cooking appliance communication unit to send a power-off prevention warning notification signal warning the external device of the power-off prevention. (Appendix 11) The heating and cooking system described in Appendix 10, wherein the external device control unit, when the external device communication unit receives the power-off prevention advance notification signal, is capable of accepting operations from the external device input operation unit, and when the external device input operation unit accepts an extension operation or a stop operation, causes the external device communication unit to send an extension notification or a stop notification signal. (Appendix 12) The heating and cooking system described in Appendix 11, wherein the external device control unit waits to accept the extension operation or the stop operation from the external device input operation unit until a standby time has elapsed since the external device communication unit received the power-off prevention advance notification signal. [Explanation of symbols]

[0164] 1 Cooking appliance, 1a Cooking system, 2 Main body, 3 Top plate, 4 Heating port, 4C Central heating port, 4L Left heating port, 4R Right heating port, 5 Exhaust port cover, 6 Heating chamber, 7 Door, 8 Handle, 9 Induction heating source, 9C Central IH coil, 9L Left IH coil, 9R Right IH coil, 10 Open / close detection unit, 11 Microwave oscillator, 12 Radiant heat heating means, 12a Upper radiant heat heating means, 12b Lower radiant heat heating means, 13 Infrared sensor, 14 Thermistor sensor, 15 Input operation unit, 15L Left operation unit, 15M Central operation unit, 15R Right operation unit, 16 Display unit, 16L Left display unit, 16M Central display unit, 16R Right display unit, 17 Heat power display unit, 17L Left heat power display unit, 17M Central heating status display, 17R right heating power display, 20 main power switch, 20A operation button, 21L, 21M,21R Individual light emitting unit, 22 First display area, 23 Second display area, 24 Third display area, 30 Temperature sensor group, 34 Bus, 35 Processor, 36 Memory, 37 Input interface circuit, 38 Output interface circuit, 40 Cooker control unit, 41 Storage device, 42 Cooking condition data storage unit, 43 Heating control unit, 44 Communication control unit, 50 Voice notification unit, 51 Communication unit, 52 Timing unit, 53 Data acquisition unit, 55 Limitation unit, 57 Power supply circuit, 60 Cooker notification unit, 151L Left timer key, 151M Central heating start key, 151R Right timer key, 152L Left cooking selection key, 152M Central heating cancel key, 152R Right cooking selection key, 153L Left start key, 153M First central heat decrease key, 153R Right start key, 154L Left heat decrease key, 154M First center heat increase key, 154R Right heat decrease key, 155L Left heat increase key, 155M Second center heat decrease key, 155R Right heat increase key, 156M Second center heat increase key, 157M Third center heat decrease key, 158M Third center heat increase key, 159M Function setting key, 170L Left heat power indicator light-emitting section, 170R Right heat power indicator light-emitting section, 200 External device, 202 Network, 203 Network, 210 External device input operation section, 210C Center setting area, 210F Heat power setting area, 210L Left setting area, 210R Right setting area, 210S Heating section selection area, 210T Timer setting area, 220 External device display section, 221D Heat power decrease mark, 221U Heat power increase mark, 222D Heating time reduction mark, 222U heating time increase mark, 223 heat power display area, 224 heating time display area, 230 external device communication unit, 240 external device control unit, 250 external device memory unit, 260 external device voice notification unit, 300 cloud server, 301 recipe information providing server, 302 recipe database, 303 cloud control unit, 400 wireless router, 600 kitchen furniture, HM heating unit, HM1 first heating means, HM2 second heating means, HM3 third heating means.

Claims

1. a heat source that heats the object to be heated; an input operation unit for setting the heating of the heat source; a control unit that sets a set heating power of the heating source in accordance with a setting of the input operation unit and controls the heating source; a cooking appliance communication unit that communicates with external devices; Equipped with The control unit of the heating cooker causes the cooker communication unit to transmit a power-off prevention warning notification signal, which warns of the power-off prevention, to the external device when a first set time, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, has elapsed after an operation related to heating settings is performed from the input operation unit.

2. The heating cooker according to claim 1, wherein when an extension notification is given to extend the heating stop after the cooker communication unit sends the power-off prevention advance notification signal, the control unit continues heating the heating source even after the power-off prevention time has elapsed.

3. The cooking device according to claim 2 , wherein the control unit stops the heating of the heat source when a second set time set for extension has elapsed since the extension notification was given.

4. The cooking device according to claim 3 , wherein the second set time is set to a different time based on the set heating power set in the heat source.

5. a cooking appliance notification unit that issues a notification based on a signal from the control unit; The heating cooker according to claim 3, wherein, after the extension notification is given, when the control unit determines that the set heat power of the heating source is equal to or greater than a predetermined threshold, the control unit sends a signal to the cooker alarm unit prompting the cooker alarm unit to change the set heat power.

6. The cooking appliance according to claim 3 or 4, wherein the control unit causes the cooking appliance communication unit to transmit the power-off prevention advance notice signal before the second set time elapses.

7. The cooking appliance according to claim 1 , wherein the control unit stops heating of the heat source when a stop notification is received from the cooking appliance communication unit after transmitting the power-off prevention advance notification signal.

8. 3. The heating cooker according to claim 2, wherein if a preset stop setting time has elapsed without the extension notification, the control unit does not accept signals related to heat setting and heat ON operation from the external device sent after the stop setting time has elapsed.

9. The heating cooker according to claim 1 or claim 7, wherein after stopping the heating of the heat source, when a signal related to an extension notification is sent from the cooker communication unit, the control unit resumes heating of the heat source at the set heat power of the heat source before stopping.

10. a cooking device including a heat source for heating an object to be heated, an input operation unit for setting the heating of the heat source, a cooking device control unit for setting the set heating power of the heat source in accordance with the setting of the input operation unit and controlling the heat source, and a cooking device communication unit for communicating with the outside; an external device including an external device communication unit that communicates with the cooking appliance, an external device input operation unit that receives operations, an external device control unit that performs processing based on operations input from the external device input operation unit, and an external device notification unit that issues a notification based on a signal from the external device control unit; Equipped with The cooking appliance control unit is a heating and cooking system that, when a first set time has elapsed since an operation related to heating settings was performed from the input operation unit, which is shorter than the power-off prevention time set to prevent forgetting to stop heating, causes the cooking appliance communication unit to send a power-off prevention warning notification signal warning of the power-off prevention to the external device.

11. The heating and cooking system of claim 10, wherein the external device control unit enables the external device input operation unit to accept operations when the external device communication unit receives the power-off prevention advance notification signal, and when the external device input operation unit accepts an extension operation or a stop operation, causes the external device communication unit to send an extension notification or a stop notification signal.

12. The heating and cooking system of claim 11, wherein the external device control unit waits to accept the extension operation or the stop operation from the external device input operation unit until a waiting time has elapsed since the external device communication unit received the power-off prevention advance notification signal.

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