Control method of microwave cooking electric appliance and microwave cooking electric appliance

Abstract

The invention discloses a control method of a microwave cooking electric appliance and the microwave cooking electric appliance. The control method of the microwave cooking electric appliance comprises the following steps: acquiring food information in a cavity of the microwave cooking electric appliance under the condition that a magnetron of the microwave cooking electric appliance is closed; determining the target power of the magnetron according to the food information; and controlling a power supply module of the microwave cooking electric appliance to supply power to the magnetron according to the target power, so that the output power of the magnetron is consistent with the target power. According to the control method of the microwave cooking electric appliance, the food information in the cavity can be collected, the target power of the magnetron can be determined according to the food information in the cavity, then the power module can be controlled to supply power to the magnetron according to the target power, the output power of the magnetron is made to be consistent with the target power, automatic recognition and autonomous control of food are achieved, and the user experience is improved. The intelligent degree of the microwave cooking electric appliance is improved, and user operation is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a control method for a microwave cooking appliance and the microwave cooking appliance. Background Art

[0002] In the related art, a microwave oven has a magnetron. When the magnetron works normally, the user selects a suitable menu through the control panel according to the type and quantity of food to be heated, sets the firepower and time, and the power module provides the pre-set working power and heating program for heating. However, the above operation requires manual adjustment by the user, which is cumbersome. Summary of the invention

[0003] The embodiments of the present invention provide a control method of a microwave cooking appliance and a microwave cooking appliance to solve at least one of the above-mentioned technical problems.

[0004] A control method for a microwave cooking appliance according to an embodiment of the present invention comprises:

[0005] When the magnetron of the microwave cooking appliance is turned off, collecting food information in the cavity of the microwave cooking appliance;

[0006] determining a target power of the magnetron according to the food information;

[0007] According to the target power, a power module of the microwave cooking appliance is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0008] The control method of the above-mentioned microwave cooking appliance can collect food information in the cavity, and determine the target power of the magnetron based on the food information in the cavity, and then control the power module to supply power to the magnetron according to the target power, so that the output power of the magnetron is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance, and simplifying user operation.

[0009] In some embodiments, the food information includes food weight and food type, and collecting the food information in the cavity of the microwave cooking appliance includes:

[0010] Using a weight sensor to collect the weight of the food;

[0011] The food image is captured by a photographing device, and the food image is processed to determine the type of the food.

[0012] In some embodiments, determining the target power of the magnetron according to the food information includes:

[0013] Determining a target voltage according to the food information;

[0014] Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0015] The target power is determined according to the preset voltage range.

[0016] In some embodiments, the magnetron includes a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet;

[0017] According to the target power, controlling the power module of the microwave cooking appliance to supply power to the magnetron so that the output power of the magnetron is consistent with the target power comprises:

[0018] Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament;

[0019] According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0020] In some embodiments, the control method comprises:

[0021] When the magnetron is turned off and the microwave cooking appliance is in an unloaded state, the magnetron is kept in a turned off state.

[0022] A microwave cooking appliance according to an embodiment of the present invention comprises a magnetron, a cavity, a control module, an information acquisition module, an information processing module and a power module, wherein the information processing module is electrically connected to the control module and the information acquisition module, and the power module is electrically connected to the control module and the magnetron;

[0023] The information collection module is configured to: collect food information in the cavity when the magnetron is turned off;

[0024] The information processing module is configured to: determine the target power of the magnetron according to the food information;

[0025] The control module is configured to: according to the target power, control the power supply module to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0026] The above-mentioned microwave cooking appliance can collect food information in the cavity, and determine the target power of the magnetron based on the food information in the cavity, and then control the power module to supply power to the magnetron according to the target power, so that the output power of the magnetron is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance, and simplifying user operation.

[0027] In some embodiments, the food information includes food weight and food type, the information acquisition module includes a weight sensor and a camera, and the information acquisition module is configured as follows:

[0028] collecting the weight of the food using the weight sensor;

[0029] The photographing device is used to capture food images, and the food images are processed to determine the types of the food.

[0030] In some embodiments, the information processing module is configured to:

[0031] Determining a target voltage according to the food information;

[0032] Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0033] The target power is determined according to the preset voltage range.

[0034] In some embodiments, the magnetron includes a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet;

[0035] The control module is configured as follows:

[0036] Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament;

[0037] According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0038] In some embodiments, the control module is configured to:

[0039] When the magnetron is turned off and the cavity is unloaded, the magnetron is kept in a turned off state.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0042] Figure 1 is a flow chart of a control method of a microwave cooking appliance according to an embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of a module of a microwave cooking appliance according to an embodiment of the present invention;

[0044] Figure 3 2 is another module schematic diagram of a microwave cooking appliance according to an embodiment of the present invention.

[0045] Figure 4 is another flow chart of a control method for a microwave cooking appliance according to an embodiment of the present invention;

[0046] Figure 5 is a schematic structural diagram of a magnetron according to an embodiment of the present invention;

[0047] Figure 6 It is another flow chart of the control method of the microwave cooking appliance according to the embodiment of the present invention.

[0048] Description of main component symbols:

[0049] Microwave cooking appliance 100, magnetron 12, cavity 14, power module 16, weight sensor 18, camera 20, first magnet 22, second magnet 24, anode 26, filament 28, interaction space 29, control module 30, energy output window 31, information acquisition module 32, information processing module 34. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present invention, and cannot be understood as limiting the embodiments of the present invention.

[0051] Please refer to Figure 1 to Figure 2 , a control method of a microwave cooking appliance 100 provided in an embodiment of the present invention includes:

[0052] Step 101, collecting food information in the cavity 14 of the microwave cooking appliance 100 when the magnetron 12 of the microwave cooking appliance 100 is turned off;

[0053] Step 103, determining the target power of the magnetron 12 according to the food information;

[0054] Step 105 , according to the target power, controlling the power module 16 of the microwave cooking appliance 100 to supply power to the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0055] The control method of the above-mentioned microwave cooking appliance 100 can collect food information in the cavity 14, and determine the target power of the magnetron 12 according to the food information in the cavity 14, and then control the power module 16 to supply power to the magnetron 12 according to the target power, so that the output power of the magnetron 12 is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance 100, and simplifying user operation.

[0056] Specifically, the microwave cooking appliance 100 includes, but is not limited to, a microwave oven, a microwave rice cooker, a microwave oven, a microwave steamer and oven, and other appliances. When the microwave cooking appliance 100 is in an initial state, the magnetron 12 is in an off state, and the microwave cooking appliance 100 does not work. When food is put into the cavity 14, the microwave cooking appliance 100 can collect food information and determine the target power of the magnetron 12 based on the food information. The microwave cooking appliance 100 can control the power module 16 to supply power to the magnetron 12 based on the target power, and the magnetron 12 automatically starts to work. The magnetron 12 outputs microwaves at the target power, and the microwaves are fed into the cavity 14 through the waveguide and the antenna to heat the food in the cavity 14.

[0057] The output power of the magnetron 12 is consistent with the target power, which can be understood as that the output power of the magnetron 12 is completely consistent with the target power, or the difference between the output power of the magnetron 12 and the target power is within a set range. The microwave cooking appliance 100 of the embodiment of the present invention can automatically identify food, collect corresponding food information, and automatically control the operation of the magnetron 12, thereby improving the intelligence of the microwave cooking appliance 100 and simplifying user operation.

[0058] In some embodiments, please combine Figure 3 , the food information includes food weight and food type, step 101 includes:

[0059] Using the weight sensor 18 to collect the weight of food;

[0060] The photographing device 20 is used to capture food images, and the food images are processed to determine the types of food.

[0061] In this way, food information can be collected.

[0062] Specifically, the microwave cooking appliance 100 may include a weight sensor 18 and a chassis, the chassis may be located in the cavity 14, food may be placed on the chassis, the bottom of the chassis may be connected to a rotating motor, when the magnetron 12 is working, the rotating motor may drive the chassis to rotate, drive the food to rotate, thereby improving the uniformity of food heating. It is understood that in other embodiments, when the magnetron 12 is working, the chassis may also be fixed.

[0063] The weight sensor 18 can be installed at the bottom of the chassis. When there is no object placed on the chassis, the weight output by the weight sensor 18 is 0 grams (g). When food is placed on the chassis, the chassis applies the gravity of the food to the weight sensor 18. The weight sensor 18 can output an electrical signal (such as voltage) representing the weight of the food, and then the weight of the food can be obtained.

[0064] The photographing device 20 may include a camera, which may be arranged at the upper part of the inner wall of the cavity 14. The camera may take pictures of food, and the microwave cooking appliance 100 may process the food images to determine the type of food. The food images may be processed by image processing techniques related to image processing to determine the type of food. The image processing techniques related to image processing include but are not limited to neural networks, etc., which are not specifically expanded here. It is understood that the camera may also be arranged at other positions of the microwave cooking appliance 100, not limited to the upper part of the inner wall of the cavity 14, as long as the image of the food can be taken and the type of food can be determined, and the present invention does not make specific limitations.

[0065] In one example, the food is steak and weighs 200 g.

[0066] In certain embodiments, see Figure 4 , step 103 comprises:

[0067] Step 1031, determining a target voltage according to food information;

[0068] Step 1033, determining a preset voltage range where the target voltage is located from a plurality of preset voltage ranges;

[0069] Step 1035, determining the target power according to the preset voltage range.

[0070] In this way, the target power can be determined efficiently.

[0071] Specifically, the food information may include the weight of the food, and the weight of the food may be weighed using the weight sensor 18. When the food is placed on the bottom plate, the weight sensor 18 may output a target voltage representing the weight of the food. The target voltage is compared with a plurality of preset voltage ranges, and a preset voltage range in which the target voltage is located may be determined from the plurality of preset voltage ranges.

[0072] The microwave cooking appliance 100 can pre-calibrate the corresponding relationship between each preset voltage range and each power through simulation, testing, etc. After determining the preset voltage range where the target voltage is located, the target power can be further determined through the above corresponding relationship.

[0073] The above corresponding relationship is the power required to heat the food to a better cooking effect based on the food weight. It should be noted that in one embodiment, different food types have different groups of corresponding relationships, each food type has a group of the above corresponding relationships, and a group of the above corresponding relationships includes one or more of the above corresponding relationships. In one embodiment, all food types can adopt the same group of corresponding relationships, which is not specifically limited here.

[0074] For example, when the food weight is 200 g, the weight sensor 18 outputs the target voltage u. When the target voltage u satisfies u0 < u < u1, it can be determined that the preset voltage range where the target voltage is located is (u0, u1), and the power corresponding to the preset voltage range (u0, u1) is 200 W, then the target power can be determined to be 200 W. The power supply module 16 can be controlled to supply power to the magnetron 12 so that the output power of the magnetron 12 is 200 W.

[0075] In some embodiments, please refer Figure 5 , the magnetron 12 includes a first magnet 22, a second magnet 24, an anode 26, and a filament 28. At least one of the first magnet 22 and the second magnet 24 is an electromagnet, and the anode 26 and the filament 28 are located between the first magnet 22 and the second magnet 24.

[0076] Please refer Figure 6 , step 105 includes:

[0077] Step 1051, determine the operating parameters of the magnetron 12 according to the target power. The operating parameters include the electrical signal parameters of at least one of the anode 26, the electromagnet, and the filament 28;

[0078] Step 1053, control the power supply module 16 to supply power to the magnetron 12 according to the operating parameters of the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0079] In this way, the output power of the magnetron 12 can be made consistent with the target power.

[0080] Specifically, in Figure 5In the embodiment, the first magnet 22 and the second magnet 24 are both electromagnets, the first magnet 22 is an upper magnet, and the second magnet 24 is a lower magnet. The filament 28 can be used as a cathode, and an interaction space 29 is formed between the anode 26 and the filament 28. The electromagnet can be an iron core electromagnet or an ironless electromagnet. In one embodiment, the first magnet 22 can be a permanent magnet and the second magnet 24 can be an electromagnet, or the first magnet 22 can be an electromagnet and the second magnet 24 can be a permanent magnet.

[0081] Working principle of magnetron 12: When magnetron 12 is working, Figure 5 As shown, a DC voltage of several thousand volts is applied between the filament 28 (cathode) and the anode 26, and at the same time, the first magnet 22 and the second magnet 24 are energized to provide a magnetic field to the interaction space 29, and the DC electric field and the DC magnetic field in the interaction space 29 are perpendicular to each other. The filament 28 emits electrons, which are accelerated by the electric field force and deflected by the magnetic field force, and perform stable oscillation motion in the interaction space 29. The electron motion speed is proportional to the ratio of E / B, where E is the electric field strength and B is the magnetic flux density. The energy obtained by the electron flow emitted by the filament 28 from the electric field in the interaction space 29 is transferred to the high-frequency field under certain conditions, and is output to the outside through the energy output window 31 to form microwaves.

[0082] The first magnet 22 and the second magnet 24 are energized (can be a constant voltage or constant current source) to provide a magnetic field, and the central magnetic field of the magnetron 12 is adjusted by adjusting the electrical signal parameters of the electromagnet (such as the working voltage or the working current), and the high voltage power supply of the magnetron 12 is adjusted in coordination, so that the output power of the magnetron 12 can be adjusted between 0 and the maximum power (for example, if the maximum working current of the electromagnet is I0, the maximum central magnetic field provided is B0, the coordinated electric field is E0, and the maximum output power is m0, then the output power of the magnetron 12 can be adjusted between 0W and mW). The relationship between the working current, the central magnetic field, the electric field and the power of the electromagnet can be pre-calibrated and stored in the microwave cooking appliance 100 through simulation, testing, etc., and correspondingly, the relationship between the electrical signal parameters of the electromagnet, the electrical signal parameters of the anode 26, the electrical signal parameters of the filament 28 and the power can also be pre-calibrated and stored in the microwave cooking appliance 100 through simulation, testing, etc.

[0083] The electrical signal parameter of the anode 26 may be a voltage, and the electrical signal parameter of the filament 28 may be a current. The output power of the magnetron 12 consistent with the target power may be obtained by one or any combination of two or more of the anode 26 voltage, the filament 28 current, and the working voltage / working current of the electromagnet. It is understood that the electrical signal parameter of the anode 26 is not limited to voltage, but may also be current, and the electrical signal parameter of the filament 28 is not limited to current, but may also be voltage, which are not specifically limited here.

[0084] In certain embodiments, the control method comprises:

[0085] When the magnetron 12 is turned off and the microwave cooking appliance 100 is in an unloaded state, the magnetron 12 is kept in the turned off state.

[0086] In this way, the problem of no-load ignition of the microwave cooking appliance 100 can be avoided.

[0087] Specifically, when the microwave cooking appliance 100 is unloaded, there is no food in the cavity 14. If the magnetron 12 is turned on, the microwave output to the cavity 14 is not absorbed by the food but reflected in the cavity 14, which can easily cause a fire in the cavity 14 and cause a safety problem.

[0088] When the magnetron 12 is turned off, when the microwave cooking appliance 100 cannot collect food information, it can be determined that the microwave cooking appliance 100 is in an unloaded state, and the magnetron 12 is kept in an off state to avoid the problem of the microwave cooking appliance 100 igniting when the magnetron 12 is started.

[0089] Please refer to Figure 2 A microwave cooking appliance 100 according to an embodiment of the present invention includes a magnetron 12, a cavity 14, a control module 30, an information acquisition module 32, an information processing module 34 and a power module 16, wherein the information processing module 34 is electrically connected to the control module 30 and the information acquisition module 32, and the power module 16 is electrically connected to the control module 30 and the magnetron 12.

[0090] The information acquisition module 32 is configured to collect food information in the cavity 14 when the magnetron 12 is turned off. The information processing module 34 is configured to determine the target power of the magnetron 12 according to the food information. The control module 30 is configured to control the power supply module 16 to supply power to the magnetron 12 according to the target power so that the output power of the magnetron 12 is consistent with the target power.

[0091] The control method of the above-mentioned microwave cooking appliance 100 can collect food information in the cavity 14, and determine the target power of the magnetron 12 according to the food information in the cavity 14, and then control the power module 16 to supply power to the magnetron 12 according to the target power, so that the output power of the magnetron 12 is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance 100, and simplifying user operation.

[0092] It should be noted that the above explanation of the implementation manner and beneficial effects of the control method of the microwave cooking appliance 100 is also applicable to the microwave cooking appliance 100 of the present embodiment, and will not be elaborated here in detail to avoid redundancy.

[0093] Specifically, the information processing module 34 contains pre-set data corresponding to various types of ingredients and the depyrogenic power data required for various weight ranges of ingredients for comparison. For example, if the type of ingredient collected is steak, the information processing module 34 compares the voltage data of steaks at different weights, obtains the target power, and selects the corresponding command to send to the control module 30.

[0094] The information processing module 34 outputs a corresponding command to the control module 30 according to the target power, starts the corresponding working program, and the microwave cooking appliance 100 automatically starts working. The control module 30 may include a control circuit. In one embodiment, a part of the information acquisition module 32 and the information processing module 34 may be integrated into the control module 30 as a central processing unit, and another part of the information acquisition module 32 (such as the weight sensor 18 and the camera 20) may be outside the central processing unit. In one embodiment, a part of the information acquisition module 32, the information processing module 34 and the control module 30 may be integrated into the power module 16.

[0095] In certain embodiments, see Figure 3 The food information includes the food weight and the food type. The information acquisition module 32 includes a weight sensor 18 and a camera 20. The information acquisition module 32 is configured as follows:

[0096] Using the weight sensor 18 to collect the weight of food;

[0097] The photographing device 20 is used to capture food images, and the food images are processed to determine the types of food.

[0098] In this way, food information can be collected.

[0099] In some embodiments, the information processing module 34 is configured to:

[0100] Determine the target voltage based on food information;

[0101] Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0102] The target power is determined according to a preset voltage range.

[0103] In this way, the target power can be determined efficiently.

[0104] In some embodiments, the magnetron 12 includes a first magnet 22 , a second magnet 24 , an anode 26 , and a filament 28 . At least one of the first magnet 22 and the second magnet 24 is an electromagnet. The anode 26 and the filament 28 are located between the first magnet 22 and the second magnet 24 .

[0105] The control module 30 is configured as follows:

[0106] Determine operating parameters of the magnetron 12 according to the target power, the operating parameters including electrical signal parameters of at least one of the anode 26, the electromagnet and the filament 28;

[0107] According to the operating parameters of the magnetron 12 , the power supply module 16 is controlled to supply power to the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0108] In this way, the output power of the magnetron 12 can be made consistent with the target power.

[0109] In some embodiments, the control module 30 is configured to:

[0110] When the magnetron 12 is turned off and the cavity 14 is unloaded, the magnetron 12 is kept in the turned off state.

[0111] In this way, the problem of no-load ignition of the microwave cooking appliance 100 can be avoided.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0113] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable actions for implementing a specific logical function or process step, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0114] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, combine, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for a microwave cooking appliance, characterized in that: include: When the magnetron of the microwave cooking appliance is turned off, collecting food information in the cavity of the microwave cooking appliance; determining a target power of the magnetron according to the food information; According to the target power, a power module of the microwave cooking appliance is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

2. The control method according to claim 1, characterized in that: The food information includes food weight and food type. Collecting the food information in the cavity of the microwave cooking appliance includes: Using a weight sensor to collect the weight of the food; The food image is captured by a photographing device, and the food image is processed to determine the type of the food.

3. The control method according to claim 1, characterized in that: Determining the target power of the magnetron according to the food information includes: determining a target voltage according to the food information; Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges; The target power is determined according to the preset voltage range.

4. The control method according to claim 1, characterized in that: The magnetron comprises a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet; According to the target power, controlling the power module of the microwave cooking appliance to supply power to the magnetron so that the output power of the magnetron is consistent with the target power comprises: Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament; According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

5. The control method according to claim 1, characterized in that: The control method comprises: When the magnetron is turned off and the microwave cooking appliance is in an unloaded state, the magnetron is kept in a turned off state.

6. A microwave cooking appliance, characterized in that: It includes a magnetron, a cavity, a control module, an information acquisition module, an information processing module and a power module, wherein the information processing module is electrically connected to the control module and the information acquisition module, and the power module is electrically connected to the control module and the magnetron; The information collection module is configured to: collect food information in the cavity when the magnetron is turned off; The information processing module is configured to: determine the target power of the magnetron according to the food information; The control module is configured to: according to the target power, control the power supply module to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

7. The microwave cooking appliance according to claim 6, characterized in that: The food information includes food weight and food type. The information acquisition module includes a weight sensor and a camera. The information acquisition module is configured as follows: collecting the weight of the food using the weight sensor; The photographing device is used to capture food images, and the food images are processed to determine the types of the food.

8. The microwave cooking appliance according to claim 6, characterized in that: The information processing module is configured as follows: determining a target voltage according to the food information; Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges; The target power is determined according to the preset voltage range.

9. The microwave cooking appliance according to claim 6, characterized in that: The magnetron comprises a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet; The control module is configured as follows: Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament; According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

10. The microwave cooking appliance according to claim 6, characterized in that: The control module is configured as follows: When the magnetron is turned off and the cavity is unloaded, the magnetron is kept in a turned off state.

Images