Heating control method, controller and electromagnetic oven

Abstract

This application provides a heating control method, a controller, and an induction cooker. The method includes: the controller periodically acquiring temperature information from temperature sensors; after acquiring the temperature information from each temperature sensor, the controller determines a target heating device based on this temperature information; the location of the target heating device is the center of the cookware; the controller adjusts the heating power of the target heating device; and after determining the heating power of each heating device, the controller controls each heating device to heat according to that heating power. This method improves the heating efficiency of the cookware.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic and electrical appliances, and in particular to a heating control method, a controller and an induction cooker. BACKGROUND

[0002] With the continuous development of science and technology, the functions of kitchen appliances are becoming more and more comprehensive. Induction cookers are particularly popular with consumers due to their numerous cooking functions.

[0003] In the prior art, the heating of an induction cooker is usually achieved by a coil disc. When a user places a pot above the coil disc of the induction cooker, the induction cooker can heat the food in the pot. Moreover, when the pot is placed directly above the coil disc of the induction cooker, the heating efficiency and uniformity are the best.

[0004] However, in actual use, it is difficult for the user to place the pot directly above the coil disc, which can easily lead to uneven heating of the pot. SUMMARY

[0005] The present application provides a heating control method, a controller and an induction cooker to solve the problem of uneven heating of the pot that is prone to occur in the prior art.

[0006] In a first aspect, the present application provides a heating control method, comprising:

[0007] periodically obtaining temperature information of each temperature sensor arranged on a panel of an induction cooker;

[0008] determining heating powers of each heating device in the induction cooker according to the temperature information;

[0009] controlling the heating devices to heat according to the heating powers.

[0010] Optionally, the determining of the heating powers of each heating device in the induction cooker according to the temperature information specifically comprises:

[0011] determining a target heating device according to the temperature information;

[0012] determining initial heating powers of each heating device of the induction cooker according to a heating instruction in response to the heating instruction;

[0013] increasing the heating power of the target heating device by a preset power.

[0014] Optionally, the plurality of temperature sensors comprises a first temperature sensor arranged at the center of a heating area of the induction cooker and a plurality of second temperature sensors arranged on a circular ring with the first temperature sensor as the center, and the determining of the target heating device according to the temperature information specifically comprises:

[0015] determining a maximum temperature value, a minimum temperature value and a temperature difference between the maximum temperature value and the minimum temperature value according to temperature information of the second temperature sensors, and determining a center temperature value according to temperature information of the first temperature sensor;

[0016] if the maximum temperature value, the minimum temperature value, the temperature difference and the center temperature value of the current period meet a first preset condition, then increasing a count value by a preset step, and if the maximum temperature value, the minimum temperature value, the temperature difference and the center temperature value of the current period meet a second preset condition, then decreasing the count value by the preset step;

[0017] if the count value is greater than a preset threshold, then determining the target heating device according to the temperature information of the current period.

[0018] Optionally, the maximum temperature value, the minimum temperature value, the temperature difference and the center temperature value of the current period meet the first preset condition, specifically including:

[0019] a ratio of the temperature difference to the maximum temperature value is greater than a first preset proportion;

[0020] the center temperature value is greater than the minimum temperature value.

[0021] Optionally, the maximum temperature value, the minimum temperature value, the temperature difference and the center temperature value of the current period meet the second preset condition, specifically including:

[0022] a ratio of the temperature difference to the maximum temperature value is less than or equal to a second preset proportion;

[0023] the center temperature value is less than the minimum temperature value.

[0024] Optionally, each of the temperature sensors corresponds to one of the heating devices, and the determination of the target heating device according to the temperature information of the current period specifically includes:

[0025] determining the second temperature sensor corresponding to the minimum temperature value;

[0026] determining the heating device corresponding to the second temperature sensor as the target heating device.

[0027] In a second aspect, the present application provides a controller, a memory and a processor; the memory is used to store a computer program; the processor is used to execute the heating control method in the first aspect and any possible design of the first aspect according to the computer program stored in the memory.

[0028] In a third aspect, the present application provides an electromagnetic oven, which comprises a plurality of temperature sensors arranged on a panel of the electromagnetic oven, a plurality of heating devices and a controller.

[0029] The controller is configured to acquire temperature information of each temperature sensor, and control the heating of the heating devices after determining the heating power of each heating device.

[0030] Optionally, the plurality of temperature sensors comprises a first temperature sensor and at least one second temperature sensor.

[0031] The first temperature sensor is arranged at the center of a heating area of the electromagnetic oven.

[0032] The plurality of second temperature sensors are evenly arranged on a circular ring with the first temperature sensor as the center.

[0033] The radius of the circular ring is smaller than the heating radius of the electromagnetic oven.

[0034] Optionally, each temperature sensor corresponds to one heating device, and the temperature sensor is configured to acquire the temperature of the area where the corresponding heating device is located.

[0035] The heating control method, the controller and the electromagnetic oven provided by the present application periodically acquire temperature information from the temperature sensors, determine a target heating device according to the temperature information of the temperature sensors, the target heating device is located at the center of a pot, adjust the heating power of the target heating device, and control the heating of the heating devices according to the heating power to improve the heating efficiency of the pot. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0037] Figure 1 A use scenario diagram of an electromagnetic oven according to an embodiment of the present application;

[0038] Figure 2 A flowchart of a heating control method according to an embodiment of the present application;

[0039] Figure 3 A heating control flowchart according to an embodiment of the present application;

[0040] Figure 4 A schematic diagram of the hardware structure of a controller provided in an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the structure of an induction cooker provided in one embodiment of this application;

[0042] Figure 6 This is a schematic diagram of a temperature sensor configuration according to an embodiment of this application. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] The terms "first" and "second" in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information.

[0045] Depending on the context, the word "if" as used here can be interpreted as "when," "when," or "in response to determination."

[0046] Furthermore, as used herein, the singular forms “a,” “one,” and “the” are intended to also include the plural forms, unless the context indicates otherwise.

[0047] It should be further understood that the terms “comprising” or “including” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups.

[0048] The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Therefore, “A, B, or C” or “A, B, and / or C” means “any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C”. Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0049] With the continuous development of technology, kitchen appliances are becoming increasingly versatile. Induction cookers, in particular, are popular among consumers due to their numerous cooking functions. Currently, induction cookers typically heat food through a coil. When a user places a pot or pan above the coil, the cooker heats the food. Furthermore, the heating efficiency and evenness are best when the pot or pan is placed directly above the coil. However, in actual use, it's difficult for users to place the pot or pan directly above the coil, easily leading to uneven heating.

[0050] To address the aforementioned problems, this application proposes a heating control method for induction cookers implemented through a controller. In traditional induction cookers, the heating element is typically a single coil. This application uses multiple heating elements instead of the traditional coil to achieve heating. Specifically, these multiple heating elements can be multiple coils. Each heating element can correspond to a heating zone. A temperature sensor is installed in each heating zone. This temperature sensor can specifically be a negative temperature coefficient thermistor (NTC). The temperature sensor can be directly mounted on each heating element. Therefore, in this application, a one-to-one correspondence between the temperature sensor and the heating element can be considered.

[0051] In this application, the temperature sensor may include a first temperature sensor located at the center of the heating area of ​​the induction cooker. Multiple other second temperature sensors may be evenly distributed on an arc centered on the first temperature sensor. The controller can collect temperature information from the multiple second temperature sensors and sort them to obtain the maximum temperature value MAX and the minimum temperature value MIN. The controller can also determine the temperature difference D according to the formula MAX - MIN = D. The controller can determine whether the cookware has deviated from its correct position by observing the changes in D. If the cookware is found to be deviating, the controller can compensate for the corresponding preset power of the heating device in the direction of the deviation. That is, this application can achieve multi-point temperature control of the induction cooker through a control algorithm, thereby solving the problem of uneven heating of the cookware.

[0052] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0053] Figure 1 This illustration shows a schematic diagram of an induction cooker according to an embodiment of this application, illustrating a usage scenario. Figure 1As shown, the upper area of ​​the induction cooker is the heating zone. This heating zone can be marked with a dotted line on the induction cooker panel. Users can use this dotted line to identify the heating zone so they can place the cookware within it for heating. The lower area of ​​the induction cooker is the control area. This control area includes a display screen and multiple buttons. In actual use, the size of the cookware is usually not the same as the heating zone marked with the dotted line on the induction cooker. Therefore, it is difficult for users to place the cookware precisely in the center of the heating zone based on the dotted line.

[0054] In this application, the controller on the induction cooker is used as the execution subject to perform the heating control method of the following embodiments. Specifically, the execution subject can be the hardware device of the controller, or the software application in the controller that implements the following embodiments, or a computer-readable storage medium installed with the software application that implements the following embodiments, or the code that implements the software application.

[0055] Figure 2 A flowchart illustrating a heating control method according to an embodiment of this application is shown. Figure 1 Based on the illustrated embodiments, as Figure 2 As shown, with the controller as the execution entity, the method in this embodiment may include the following steps:

[0056] S101. Periodically acquire temperature information from each temperature sensor installed on the induction cooker panel.

[0057] In this embodiment, the controller can periodically request temperature information from the temperature sensor. Alternatively, the temperature sensor can periodically send temperature information to the controller. The period can be determined according to actual needs. For example, the period can be once per second. The temperature information may include the sensor information of the temperature sensor and the temperature value measured by the temperature sensor at the current moment. The sensor information may be the location information of the temperature sensor. Alternatively, the sensor information may also be the number of the temperature sensor. The controller can determine the location information of the temperature sensor based on the number.

[0058] S102. Determine the heating power of each heating device in the induction cooker based on the temperature information.

[0059] In this embodiment, in a traditional induction cooker, a heating zone typically has only one heating element. This heating element can be a coil. When using a single coil for heating, differences in heating power exist at different locations on the coil. Therefore, if the cookware is not placed in the center of the heating zone, uneven heating can easily occur. Furthermore, using higher power at the center of the cookware allows for faster heating. Also, the temperature measured by the temperature sensors on the induction cooker panel varies depending on the area of ​​the cookware relative to the heating element's heating zone. Therefore, the controller can determine the cookware's location based on the temperature information from each sensor. The controller can then adjust the heating power of the heating element at that location based on the cookware's position. This adjustment ensures that the center of the cookware receives the highest heating power.

[0060] In one example, the controller needs to adjust the heating power of each heating element, firstly by identifying the heating element closest to the center of the cookware. This heating element closest to the center of the cookware is the target heating element. Once the target heating element is identified, the specific process of the controller adjusting the power may include the following steps:

[0061] Step 1: Determine the target heating device based on the temperature information.

[0062] In this step, the controller can determine the location of the cookware within the current cycle based on the temperature information from each temperature sensor. This location is the center point of the cookware. The location can be determined based on the sensor positions. For example, the location of temperature sensor 3 could be the location of the cookware. In actual use, the temperature sensor's location is not directly opposite the center point of the cookware. Typically, the location closest to the center point of the cookware within the current cycle is the cookware's location. In an induction cooker, the more temperature sensors present, the more accurate the controller's positioning of the cookware. Since the temperature sensors can be mounted on the heating element, the controller can determine the corresponding heating element after identifying the temperature sensor for the cookware's location. This heating element is the target heating element.

[0063] Step 2: In response to the heating command, determine the initial heating power of each heating device of the induction cooker according to the heating command.

[0064] In this step, the controller can obtain the heating command set by the user on the induction cooker. This heating command typically includes a target heating power. Based on this heating command, the controller can set the initial heating power of each heating element of the induction cooker according to the target heating power. This initial heating power is the [specific power value] for each [heating element].

[0065] The heating power of the heating device before adjustment. Optionally, in actual use, users do not frequently modify the heating commands set on the induction cooker via buttons. Therefore, the controller can first determine the heating command...

[0066] The controller checks whether the heating command has changed. If the heating command changes, the controller resets the initial heating power of each heating device according to the target heating power in the heating command. Otherwise, the controller can determine that the initial heating power of each heating device remains unchanged.

[0067] Step 3: Increase the initial heating power of the target heating device by a preset power.

[0068] In step 5, the controller can be set with a preset power. When the controller determines the target heating device...

[0069] Then, the controller can set the heating power of the target heating device to the sum of the initial heating power and the preset power. Optionally, when there are enough heating devices in the induction cooker, the controller can designate the target heating device as the central heating device after identifying it. The controller can obtain the heating power of the target heating device.

[0070] The central target heating device is a multi-ring heating device centered on a circle. For example, the first ring of heating devices around this target heating device can be a first target heating device, and the second ring of heating devices around this target heating device can be...

[0071] A second target heating device can be used, and so on. The controller can be set with multiple preset power levels. These preset power levels can be respectively the center preset power added to the central target heating device, the first preset power added to the first target heating device, and the second preset power added to the second target heating device.

[0072] Rate... Among them, the center preset power is usually the highest, and the first preset power and the second preset power decrease by 5 in turn. Using this method to adjust the heating power of each heating device can ensure that the center of the pot...

[0073] The position has the highest heating power, thus improving the heating efficiency of the cookware.

[0074] In one example, the plurality of temperature sensors in the induction cooker may include a first temperature sensor disposed at the center of the heating zone of the induction cooker, and a second temperature sensor disposed centered on the first temperature sensor.

[0075] Multiple second temperature sensors are arranged on a ring. Optionally, when there are enough heating devices, multiple rings can be arranged around the first temperature sensor. The ring closest to the first temperature sensor includes a second temperature sensor, the outer layer of the second temperature sensor can be a third temperature sensor, the outer layer of the third temperature sensor can be a fourth temperature sensor, and so on. After acquiring the temperature information from each temperature sensor, the controller can determine the target heating device based on the temperature information. The process of determining the target heating device may specifically include the following steps:

[0076] Step 11: Based on the temperature information from multiple second temperature sensors, determine the maximum temperature value, the minimum temperature value, and the temperature difference between the maximum and minimum temperature values. Based on the temperature information from the first temperature sensor, determine the center temperature value.

[0077] In this step, the controller can acquire temperature information from multiple second temperature sensors within the current cycle. After acquiring the temperature values ​​from these multiple temperature information sources, the controller can sort these temperature values. Based on the sorting result, the controller can determine the maximum and minimum temperature values. The controller can also identify the second temperature sensor corresponding to the maximum temperature value and the second temperature sensor corresponding to the minimum temperature value. The controller can determine the temperature difference based on the difference between the maximum and minimum temperature values. The controller can also determine the center temperature value detected by the first temperature sensor based on the temperature information from the first temperature sensor.

[0078] Step 12: If the maximum temperature, minimum temperature, temperature difference, and center temperature of the current cycle meet the first preset condition, the count value is increased by a preset step size. If the maximum temperature, minimum temperature, temperature difference, and center temperature of the current cycle meet the second preset condition, the count value is decreased by a preset step size.

[0079] In this step, the controller can use a first preset condition and a second preset condition to determine the maximum temperature value, minimum temperature value, temperature difference value, and center temperature value of the current cycle. If the first preset condition is met, the controller increases the count value by a preset step size. If the second preset condition is met, the controller decreases the count value by a preset step size. Optionally, the preset step size can be 1.

[0080] The first preset condition may specifically include: the ratio of the temperature difference to the maximum temperature value is greater than a first preset proportion, and the center temperature value is greater than the minimum temperature value. The second preset condition may specifically include: the ratio of the temperature difference to the maximum temperature value is less than or equal to a second preset proportion, and the center temperature value is less than the minimum temperature value. Optionally, the first and second preset proportions can be determined based on empirical values. Optionally, the first and second preset proportions can be the same value. For example, both the first and second preset proportions can be 10%. Alternatively, the first and second preset proportions can be different values.

[0081] Step 13: If the count value is greater than the preset threshold, then determine the target heating device based on the temperature information of the current cycle.

[0082] In this step, the controller can perform a judgment after completing step 12 in each cycle. This judgment compares the count value with a preset threshold. If the count value is greater than the preset threshold, the controller can determine the target heating device based on the temperature information of the current cycle. Otherwise, if the count value is less than or equal to the preset threshold, the controller jumps to step 11 to continue acquiring the temperature information for the next cycle.

[0083] Optionally, when the count value exceeds a preset threshold, the controller can determine the second temperature sensor corresponding to the minimum temperature value of the current cycle. Subsequently, the controller can determine the heating device corresponding to the second temperature sensor as the target heating device based on this second temperature sensor.

[0084] S103. Control the heating device to heat according to the heating power.

[0085] In this embodiment, the controller can determine the heating power of each heating device and then control each heating device to perform heating based on that heating power.

[0086] The heating control method provided in this application allows the controller to periodically acquire temperature information from temperature sensors. After acquiring the temperature information from each temperature sensor, the controller determines the target heating device based on this information. The location of the target heating device is the center of the cookware. The controller can adjust the heating power of the target heating device. After determining the heating power of each heating device, the controller controls each heating device to heat according to that power. In this application, by determining the target heating device, the cookware is positioned, and the heating power of each position on the induction cooker is adjusted, ensuring uniform heating of the cookware and improving its heating efficiency.

[0087] Based on the above embodiments, such as Figure 3 The diagram shows the heating control process of an induction cooker. The temperature sensors in the heating area of ​​the induction cooker can be arranged as follows:Figure 6 As shown. The induction cooker includes 5 temperature sensors. Among them, NTC1 is the first temperature sensor, and NTC2, NTC3, NTC4, and NTC5 are the second temperature sensors. Each temperature sensor corresponds to a heating device. Taking the controller as the execution entity, the specific steps of this example may include:

[0088] S201. The induction cooker is powered on and starts heating.

[0089] S202. The controller can periodically collect the temperature information of each temperature sensor. The temperature information may include temperature values. The temperature values of NTC1, NTC2, NTC3, NTC4, and NTC5 collected by the controller can be represented by t1, t2, t3, t4, and t5 respectively. The sampling period can be 1 second.

[0090] S203. The controller can sort t2, t3, t4, and t5 to obtain the maximum temperature value max and the minimum temperature value min.

[0091] S204. The controller can determine the temperature difference d by calculating max - min. Usually, when the cookware is directly above the heating area of the induction cooker, d / max <= 10%, and t1 < min. Therefore, when d / max <= 10% and t1 < min, the controller controls the count value a to be decreased by 1. When the deviation of the cookware from directly above the heating area of the induction cooker is large, d / max > 10% and t1 > min. Therefore, when d / max > 10% and t1 > min, the controller controls the count value a to be increased by 1. Among them, 10% is the first preset ratio and the second preset ratio, and 1 is the preset step size.

[0092] S205. The controller determines whether the count value a is greater than 5. Among them, 5 is the preset threshold. When a is greater than 5, the controller continues to execute S206. Otherwise, when a is less than or equal to 5, the controller jumps to step S202 and obtains the temperature information of the next cycle.

[0093] S206. When the count value is greater than 5, if min = tx, the heating power of the heating device at the position corresponding to tx is increased. Among them, x can be 2, 3, 4, or 5. For example, if min = t2, it means that the heating power of the heating device at the position of NTC2 needs to be increased. If min = t3, it means that the heating power of the heating device at the position of NTC3 needs to be increased. If min = t4, it means that the heating power of the heating device at the position of NTC4 needs to be increased. If min = t5, it means that the heating power of the heating device at the position of NTC5 needs to be increased. "

[0094] Figure 4 shows a schematic hardware structure diagram of a controller provided by an embodiment of the present application. AsFigure 4 As shown, the controller 10 is used to implement the operation corresponding to the controller in any of the above method embodiments. The controller 10 in this embodiment may include: a memory 11, a processor 12 and a communication interface 14.

[0095] The memory 11 is used to store computer programs. The memory 11 may include high-speed random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device, and may also be a USB flash drive, external hard drive, read-only memory, disk or optical disc, etc.

[0096] Processor 12 is used to execute the computer program stored in the memory to implement the heating control method in the above embodiments. For details, please refer to the relevant descriptions in the foregoing method embodiments. The processor 12 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0097] Alternatively, the memory 11 can be either standalone or integrated with the processor 12.

[0098] When the memory 11 is a device independent of the processor 12, the controller 10 may further include a bus 13. This bus 13 is used to connect the memory 11 and the processor 12. The bus 13 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0099] Communication interface 14 can be connected to processor 11 via bus 13. Processor 12 can control communication interface 14. Communication interface 14 can be used to realize communication with devices such as temperature sensors and coils in the induction cooker.

[0100] The controller provided in this embodiment can be used to execute the heating control method described above. Its implementation method and technical effect are similar, and will not be described again in this embodiment.

[0101] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, is used to implement the methods provided in the various embodiments described above.

[0102] The computer-readable storage medium can be a computer storage medium or a communication medium. A communication medium includes any medium that facilitates the transfer of a computer program from one location to another. A computer storage medium can be any available medium accessible to a general-purpose or special-purpose computer. For example, a computer-readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be a component of the processor. The processor and the computer-readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the ASIC can reside in a user equipment. Of course, the processor and the computer-readable storage medium can also exist as discrete components in a communication device.

[0103] Specifically, the computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage medium can be any available medium accessible to general-purpose or special-purpose computers.

[0104] This application also provides a computer program product comprising a computer program stored in a computer-readable storage medium. At least one processor of the device can read the computer program from the computer-readable storage medium, and the at least one processor executes the computer program to cause the device to implement the methods provided in the various embodiments described above.

[0105] Figure 5 A schematic diagram of the structure of an induction cooker according to an embodiment of this application is shown, as follows: Figure 5 As shown, the induction cooker 20 in this embodiment is used to implement the operation corresponding to the controller in any of the above method embodiments. The induction cooker 20 in this embodiment includes: multiple temperature sensors 21 disposed on the induction cooker panel, multiple heating devices 22, and a controller 23. The controller 23 is used to acquire temperature information from each temperature sensor 21. The controller 23 is also used to control the heating devices 22 to heat according to their respective heating power after determining the heating power of each heating device 22.

[0106] In one example, the plurality of temperature sensors 21 includes a first temperature sensor and at least one second temperature sensor. The first temperature sensor is located at the very center of the heating zone of the induction cooker. The plurality of second temperature sensors are evenly distributed on a ring centered on the first temperature sensor. For example, as... Figure 6 As shown, when there are five temperature sensors on the induction cooker panel, the first temperature sensor is NTC1. NTC2, NTC3, NTC4, and NTC5 are the second temperature sensors. The four second temperature sensors are located in a ring with a radius of 50mm centered on the ring. Specifically, NTC2 is located directly to the right of the ring, NTC3 is directly below the ring, NTC4 is directly to the left of the ring, and NTC5 is directly above the ring. Figure 6 The radius of the ring shown is 50mm. This radius is typically smaller than the heating radius of an induction cooker.

[0107] In one example, each temperature sensor corresponds to a heating element. Typically, the temperature sensor can be mounted on the heating element and located on the control panel of the induction cooker. This arrangement allows the temperature sensor to more accurately obtain the temperature of the area where its corresponding heating element is located.

[0108] The induction cooker provided in this application embodiment can execute the above method embodiment. Its specific implementation principle and technical effect can be found in the above method embodiment, and will not be repeated here.

[0109] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0110] The modules can be physically separate, for example, installed in different locations within a single device, installed on different devices, distributed across multiple network units, or distributed across multiple processors. Alternatively, the modules can be integrated, for example, installed in the same device, or integrated into a single codebase. The modules can exist in hardware form, software form, or a combination of both. This application can select some or all of the modules to achieve the objectives of this embodiment based on actual needs.

[0111] When the various modules are implemented as integrated software functional modules, they can be stored in a computer-readable storage medium. The aforementioned software functional modules, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods of the various embodiments of this application.

[0112] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heating control method, characterized in that, The method is applied to a controller in an induction cooker, and the method includes: The temperature information of each temperature sensor installed on the induction cooker panel is periodically acquired; wherein each temperature sensor corresponds to a heating device. Based on the temperature information, the target heating device is determined, which is the heating device closest to the center of the cookware; In response to a heating command, and based on the heating command, the initial heating power of each of the heating devices of the induction cooker is determined; Increase the heating power of the target heating device by a preset power; The heating of each heating device is controlled according to its heating power.

2. The method according to claim 1, characterized in that, The plurality of temperature sensors include a first temperature sensor disposed at the center of the heating area of ​​the induction cooker, and a plurality of second temperature sensors disposed on a ring centered on the first temperature sensor. The step of determining the target heating device based on the temperature information specifically includes: Based on the temperature information from multiple second temperature sensors, determine the maximum temperature value, the minimum temperature value, and the temperature difference between the maximum and minimum temperature values; based on the temperature information from the first temperature sensor, determine the center temperature value. If the maximum temperature value, the minimum temperature value, the temperature difference value, and the center temperature value of the current cycle meet the first preset condition, the count value is increased by a preset step size; if the maximum temperature value, the minimum temperature value, the temperature difference value, and the center temperature value of the current cycle meet the second preset condition, the count value is decreased by a preset step size. If the count value is greater than a preset threshold, the target heating device is determined based on the temperature information of the current cycle.

3. The method according to claim 2, characterized in that, The maximum temperature value, minimum temperature value, temperature difference value, and center temperature value of the current cycle meet the first preset condition, specifically including: The ratio of the temperature difference to the maximum temperature is greater than a first preset ratio; The center temperature value is greater than the minimum temperature value.

4. The method according to claim 2, characterized in that, The maximum temperature value, minimum temperature value, temperature difference value, and center temperature value of the current cycle meet the second preset condition, specifically including: The ratio of the temperature difference to the maximum temperature is less than or equal to a second preset ratio; The center temperature value is less than the minimum temperature value.

5. The method according to claim 2, characterized in that, The step of determining the target heating device based on the temperature information of the current cycle specifically includes: Based on the minimum temperature value, determine the corresponding second temperature sensor; Based on the second temperature sensor, the corresponding heating device is determined to be the target heating device.

6. A controller, characterized in that, The controller includes: a memory and a processor; The memory is used to store a computer program; the processor is used to implement the heating control method as described in any one of claims 1 to 5 according to the computer program stored in the memory.

7. An induction cooker, characterized in that, The induction cooker includes multiple temperature sensors disposed on the induction cooker panel, multiple heating devices, and a controller as described in claim 6; The controller is used to acquire temperature information from each of the temperature sensors; the controller is also used to control the heating of each heating device after determining the heating power of each heating device.

8. The induction cooker according to claim 7, characterized in that, The plurality of temperature sensors includes a first temperature sensor and a plurality of second temperature sensors; The first temperature sensor is located at the exact center of the heating area of ​​the induction cooker; Multiple second temperature sensors are evenly distributed on a ring centered on the first temperature sensor; The radius of the ring is smaller than the heating radius of the induction cooker.

9. The induction cooker according to claim 8, characterized in that, Each of the temperature sensors corresponds to one of the heating devices, and the temperature sensor is used to obtain the temperature of the area where its corresponding heating device is located.

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