CN110613309A

CN110613309A - Control method and control device of cooking equipment, storage medium and cooking equipment

Info

Publication number: CN110613309A
Application number: CN201810637642.0A
Authority: CN
Inventors: 汪钊; 陈伟; 肖小龙; 王彪
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2019-12-27
Anticipated expiration: 2038-06-20
Also published as: CN110613309B

Abstract

The invention provides a control method of cooking equipment, which comprises the following steps: acquiring initial operation PWM of the cooking equipment; identifying a type of pot placed on a heating device of a cooking apparatus; acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs; determining target operation PWM according to the target maximum operation PWM and the initial operation PWM; and controlling the heating device to work according to the target operation PWM. Correspondingly, a control device of the cooking device, a computer readable storage medium and the cooking device are also provided. According to the technical scheme, the target operation PWM of the cooking equipment is limited according to the maximum operation PWM corresponding to the type of the cookware placed on the heating device, so that the influence on the operation reliability of the cooking equipment caused by overlarge peak voltage and peak current of the IGBT is avoided, and the use safety of the cooking equipment is effectively ensured.

Description

Control method and control device of cooking equipment, storage medium and cooking equipment

Technical Field

The invention relates to the technical field of household appliances, in particular to a control method of a cooking device, a control device of the cooking device, a computer readable storage medium and the cooking device.

Background

At present, the larger the PWM (Pulse Width Modulation) in an electromagnetic heating device of a cooking apparatus is, the longer the single-cycle on-time of an IGBT (Insulated Gate Bipolar Transistor) is, the larger the IGBT peak voltage and peak current are, and the larger the IGBT peak voltage and peak current are, which may affect the reliability of a product, so that the maximum limit on the PWM is required, and different pot types are placed on the electromagnetic heating device, and the inductance and resistance after coupling are different, and the peak voltage and peak current of the IGBT in the electromagnetic heating device are different under the same PMW condition, so that the maximum PWM needs to be limited for different pot types.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

Therefore, an object of the present invention is to provide a new method for controlling a cooking apparatus, which defines a target operation PWM of the cooking apparatus according to a maximum operation PWM corresponding to a type of a pot placed on a heating device, so as to avoid an influence on the operation reliability of the cooking apparatus due to an excessive peak voltage and peak current of an IGBT, and effectively ensure the use safety of the cooking apparatus.

Another object of the present invention is to provide a control device of a cooking apparatus, a computer readable storage medium and a cooking apparatus.

To achieve at least one of the above objects, according to a first aspect of the present invention, there is provided a control method of a cooking apparatus, including: acquiring initial operation PWM of the cooking equipment; identifying a type of pot placed on a heating device of a cooking apparatus; acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs; determining target operation PWM according to the target maximum operation PWM and the initial operation PWM; and controlling the heating device to work according to the target operation PWM.

In the technical scheme, when different cookers are placed on a heating device of a cooking device, the peak voltage and the peak current of an IGBT of the cooking device are different under the same PWM condition due to different inductance and resistance generated after coupling, so that the type of the cooker placed on the heating device needs to be identified, the target operation PWM of the cooking device is determined according to the identified type of the cooker, specifically, the cooking device is pre-stored with the one-to-one correspondence relationship between a plurality of cooker types and a plurality of maximum operation PWMs, after the type of the cooker placed on the heating device is identified, the target maximum operation PWM corresponding to the identified type of the cooker in the plurality of maximum operation PWMs is obtained, the target operation PWM corresponding to the identified type of the cooker is determined according to the target maximum operation PWM and the initial operation PWM of the cooking device, and the operation of the heating device is controlled according to the target operation PWM, the influence on the operation reliability of the cooking equipment caused by overlarge peak voltage and peak current of the IGBT is avoided, and the use safety of the cooking equipment is effectively guaranteed.

In the above technical solution, preferably, the step of determining the target operation PWM according to the target maximum operation PWM and the initial operation PWM specifically includes: judging whether the initial operation PWM is larger than the target maximum operation PWM; and if so, determining the target maximum operation PWM as the target operation PWM, otherwise, determining the initial operation PWM as the target operation PWM.

In the technical scheme, the target operation PWM can be determined by judging whether the initial operation PWM is greater than the target maximum operation PWM, specifically, when the initial operation PWM is judged to be less than or equal to the target maximum operation PWM, it is described that the voltage and current of the IGBT at this time do not exceed the peak voltage and peak current of the IGBT corresponding to the identified type of the pot, so that the initial operation PWM is used as the target operation PWM used in the subsequent operation of the heating apparatus, that is, the heating apparatus is still controlled to operate according to the initial operation PWM, when the initial operation PWM is judged to be greater than the target maximum operation PWM, it is described that the voltage and current of the IGBT at this time already exceed the peak voltage and peak current of the IGBT corresponding to the identified type of the pot, so that the target maximum operation PWM is used as the target operation PWM used in the subsequent operation of the heating apparatus, that is, the heating apparatus is controlled to operate according to the target, so as to ensure the use safety of the cooking equipment and ensure the heating effect of the heating device at the same time.

In any of the above technical solutions, preferably, the step of identifying the type of the pot placed on the heating device of the cooking apparatus specifically includes: when the heating device works according to the initial operation PWM, acquiring an output pulse signal corresponding to the switching state of an IGBT of the cooking equipment; converting the output pulse signal into a pulse frequency; and determining the type of the cookware according to the magnitude relation between the pulse frequency and the preset frequency threshold.

In this technical scheme, it can be understood that, when the cooking apparatus is operated, different types of cookers placed on the heating device can make the switching state of the IGBT of the cooking apparatus correspond to different output pulse signals, so that the type of the cooker placed on the heating device can be determined according to the output pulse signal corresponding to the switching state of the IGBT of the cooking apparatus, specifically, after the output pulse signal corresponding to the switching state of the IGBT is obtained, for convenience of determination, the output pulse signal is converted into a pulse frequency, and then the type of the cooker placed on the heating device is determined according to the magnitude relation between the preset frequency threshold value stored in the cooking apparatus and the pulse frequency.

In any of the above technical solutions, preferably, before the step of identifying the type of the pot placed on the heating device of the cooking apparatus, the method further includes: judging whether a cooker is placed on the heating device or not; if so, controlling the step of identifying the type of the cookware, otherwise, controlling the heating device to stop working and controlling the prompt signal to be sent out.

In this technical scheme, the discernment is placed before the type of the pan on heating device, need judge whether placed the pan on heating device, it is understandable, can adopt pressure sensor to judge whether placed the pan on heating device, certainly also can adopt other modes to judge, after having placed the pan on judging heating device, discern the type of the pan of placing on heating device, if judge that heating device has not placed the pan on, then control heating device stop work, with the loss that reduces the electric energy, control cooking equipment sends cue signal simultaneously, with to the current situation of user's reflection, in order to avoid influencing cooking equipment's life.

According to a second aspect of the present invention, there is provided a control device of a cooking apparatus, comprising: the first acquisition module is used for acquiring the initial operation PWM of the cooking equipment; an identification module for identifying the type of a pot placed on a heating device of a cooking apparatus; the second acquisition module is used for acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs; the determining module is used for determining target operation PWM according to the target maximum operation PWM and the initial operation PWM; and the first control module is used for operating the PWM to control the heating device to work according to the target operation.

In the foregoing technical solution, preferably, the determining module specifically includes: the judgment submodule is used for judging whether the initial operation PWM is larger than the target maximum operation PWM; the first determining submodule is used for determining the target maximum operation PWM as the target operation PWM when the judging submodule judges that the initial operation PWM is larger than the target maximum operation PWM; and the second determining submodule is used for determining the initial operation PWM as the target operation PWM when the judging submodule judges that the initial operation PWM is less than or equal to the target maximum operation PWM.

In any of the above technical solutions, preferably, the identification module specifically includes: the acquisition submodule is used for acquiring an output pulse signal corresponding to the switching state of an IGBT (insulated gate bipolar translator) of the cooking equipment when the heating device works according to the initial operation PWM; the conversion submodule is used for converting the output pulse signal into a pulse frequency; and the third determining submodule is used for determining the type of the cookware according to the magnitude relation between the pulse frequency and the preset frequency threshold.

In this technical scheme, it can be understood that, when the cooking apparatus is operated, the cookers made of different materials placed on the heating device can make the switching state of the IGBT of the cooking apparatus correspond to different output pulse signals, so that the type of the cooker placed on the heating device can be determined according to the output pulse signals corresponding to the switching state of the IGBT of the cooking apparatus, specifically, after the output pulse signals corresponding to the switching state of the IGBT are obtained, for convenience of determination, the output pulse signals are converted into pulse frequency, and then the type of the cooker placed on the heating device is determined according to the magnitude relation between the preset frequency threshold and the pulse frequency stored in the cooking apparatus.

In any of the above technical solutions, preferably, the control device of the cooking apparatus further includes: the judging module is used for judging whether a cooker is placed on the heating device or not before the identifying module identifies the type of the cooker placed on the heating device of the cooking equipment; the second control module is used for controlling the heating device to stop working and controlling the heating device to send out a prompt signal when the judging module judges that no cookware is placed on the heating device; and the identification module is specifically configured to: when judging that the pan has been placed on heating device to the module, the type of the pan of placing on the heating device of cooking equipment is discerned.

According to a third aspect of the present invention, there is provided a control device of a cooking apparatus, comprising: a processor; a memory for storing executable instructions of a processor, wherein the processor is configured to implement the steps of the control method of the cooking apparatus according to any one of the above aspects of the first aspect when executing the executable instructions stored in the memory.

According to a fourth aspect of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of controlling a cooking apparatus as set forth in any one of the above aspects of the first aspect.

According to a fifth aspect of the present invention, there is provided a cooking apparatus comprising: the control device of a cooking apparatus according to any one of the second aspect and the third aspect.

Optionally, the cooking device is an induction cooker, an induction pressure cooker, an induction cooker, or the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flowchart illustrating a control method of a cooking apparatus according to a first embodiment of the present invention;

fig. 2 shows a schematic block diagram of a control device of a cooking apparatus according to a first embodiment of the present invention;

FIG. 3 shows a schematic block diagram of the determination module shown in FIG. 2;

FIG. 4 shows a schematic block diagram of the identification module shown in FIG. 2;

fig. 5 is a flowchart illustrating a control method of a cooking apparatus according to a second embodiment of the present invention;

fig. 6 shows a schematic block diagram of a control device of a cooking apparatus according to a second embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A method for controlling a cooking apparatus according to a first embodiment of the present invention will be described in detail with reference to fig. 1.

As shown in fig. 1, the method for controlling a cooking apparatus according to the first embodiment of the present invention specifically includes the following steps:

step 102, obtaining an initial operation PWM of the cooking device.

Step 104, identifying a type of pot placed on a heating device of the cooking apparatus.

Specifically, the types of cookware are stainless steel cookware, stainless iron cookware, and the like.

And 106, acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs.

And step 108, determining the target operation PWM according to the target maximum operation PWM and the initial operation PWM.

And step 110, operating the PWM to control the heating device to work according to the target operation.

In this embodiment, when different pots are placed on the heating device of the cooking apparatus, the peak voltage and the peak current of the IGBT of the cooking apparatus are different under the same PWM condition due to different inductance and resistance generated after coupling, and therefore, the type of the pot placed on the heating device needs to be identified, and the target operation PWM of the cooking apparatus is determined according to the identified type of the pot, specifically, a one-to-one correspondence relationship between a plurality of pot types and a plurality of maximum operation PWMs is pre-stored in the cooking apparatus, after the type of the pot placed on the heating device is identified, the target maximum operation PWM corresponding to the identified type of the pot among the plurality of maximum operation PWMs is obtained, and then the target operation PWM corresponding to the identified type of the pot is determined according to the target maximum operation PWM and the initial operation PWM of the cooking apparatus, and the operation of the heating device is controlled according to the target operation PWM, the influence on the operation reliability of the cooking equipment caused by overlarge peak voltage and peak current of the IGBT is avoided, and the use safety of the cooking equipment is effectively guaranteed.

Further, in the foregoing embodiment, step 108 specifically includes: judging whether the initial operation PWM is larger than the target maximum operation PWM; and if so, determining the target maximum operation PWM as the target operation PWM, otherwise, determining the initial operation PWM as the target operation PWM.

In this embodiment, the target operation PWM may be determined by determining whether the initial operation PWM is greater than the target maximum operation PWM, and specifically, when it is determined that the initial operation PWM is less than or equal to the target maximum operation PWM, it is described that the voltage and current of the IGBT at that time do not exceed the peak voltage and peak current of the IGBT corresponding to the identified type of pot, so that the initial operation PWM is used as the target operation PWM used in the subsequent operation of the heating apparatus, that is, the heating apparatus is still controlled to operate according to the initial operation PWM, and when it is determined that the initial operation PWM is greater than the target maximum operation PWM, it is described that the voltage and current of the IGBT at that time already exceed the peak voltage and peak current of the IGBT corresponding to the identified type of pot, so that the target maximum operation PWM is used in the subsequent operation of the heating apparatus, that the heating apparatus is controlled to operate according to the target maximum operation PWM, so as to ensure the use safety of the cooking equipment and ensure the heating effect of the heating device at the same time.

Further, in the above embodiment, step 104 specifically includes: when the heating device works according to the initial operation PWM, acquiring an output pulse signal corresponding to the switching state of an IGBT of the cooking equipment; converting the output pulse signal into a pulse frequency; and determining the type of the cookware according to the magnitude relation between the pulse frequency and the preset frequency threshold.

In this embodiment, it can be understood that, when the cooking apparatus is operated, the cookers made of different materials placed on the heating device may have different switching states of the IGBT of the cooking apparatus corresponding to different output pulse signals, so that the type of the cooker placed on the heating device may be determined according to the output pulse signal corresponding to the switching state of the IGBT of the cooking apparatus, specifically, after the output pulse signal corresponding to the switching state of the IGBT is obtained, for convenience of determination, the output pulse signal is converted into a pulse frequency, and then the type of the cooker placed on the heating device is determined according to a magnitude relationship between a preset frequency threshold and the pulse frequency stored in the cooking apparatus.

For example, when the pulse frequency is greater than the preset frequency threshold, the type of the cooking device is determined as type a, and when the pulse frequency is less than or equal to the preset frequency threshold, the type of the cooking device is determined as type B.

Further, in the above embodiment, before step 104, the method further includes: judging whether a cooker is placed on the heating device or not; if so, controlling the step of identifying the type of the cookware, otherwise, controlling the heating device to stop working and controlling the prompt signal to be sent out.

In this embodiment, before the type of the pan of discernment placement on heating device, whether the pan has been placed on heating device need be judged, understandably, can adopt pressure sensor to judge whether the pan has been placed on heating device, certainly also can adopt other modes to judge, after having placed the pan on judging heating device, discern the type of the pan of placing on heating device, if judge that the pan has not been placed on heating device, then control heating device stop work, with the loss that reduces the electric energy, control cooking equipment sends the cue signal simultaneously, with to the current situation of user's reflection, in order to avoid influencing cooking equipment's life.

Specifically, the cue signal includes an acousto-optic signal, a vibration signal, and the like.

A control device of a cooking apparatus according to a first embodiment of the present invention will be specifically described with reference to fig. 2 to 4.

As shown in fig. 2, a control device 20 of a cooking apparatus according to a first embodiment of the present invention includes: a first acquisition module 202, an identification module 204, a second acquisition module 206, a determination module 208, and a first control module 210.

The first obtaining module 202 is configured to obtain an initial operation PWM of the cooking apparatus; the identification module 204 is used for identifying the type of a pot placed on the heating device of the cooking apparatus; the second obtaining module 206 is configured to obtain a target maximum operation PWM corresponding to the type of the cookware from a plurality of prestored maximum operation PWMs; the determining module 208 is configured to determine a target operating PWM according to the target maximum operating PWM and the initial operating PWM; the first control module 210 is configured to PWM control the operation of the heating device according to a target operation.

Further, in the foregoing embodiment, the determining module 208 specifically includes: a judgment sub-module 2082, a first determination sub-module 2084, and a second determination sub-module 2086, as shown in FIG. 3.

The judgment sub-module 2082 is used for judging whether the initial operation PWM is greater than the target maximum operation PWM; the first determining sub-module 2084, configured to determine the target maximum operation PWM as the target operation PWM when the determining sub-module 2082 determines that the initial operation PWM is greater than the target maximum operation PWM; and a second determining sub-module 2086, configured to determine the initial operation PWM as the target operation PWM when the determining sub-module 2082 determines that the initial operation PWM is less than or equal to the target maximum operation PWM.

Further, in the above embodiment, the identifying module 204 specifically includes: an acquisition submodule 2042, a conversion submodule 2044 and a third determination submodule 2046, as shown in fig. 4.

The obtaining submodule 2042 is configured to obtain an output pulse signal corresponding to the switching state of the IGBT of the cooking apparatus when the heating device operates according to the initial operation PWM; the converting submodule 2044 is configured to convert the output pulse signal into a pulse frequency; the third determining submodule 2046 is configured to determine the type of the cookware according to the magnitude relationship between the pulse frequency and the preset frequency threshold.

Further, in the above-described embodiment, as shown in fig. 2, the control device 20 of the cooking apparatus further includes: a decision block 212 and a second control block 214.

The determining module 212 is configured to determine whether a pot is placed on the heating device of the cooking apparatus before the identifying module 204 identifies the type of the pot placed on the heating device; the second control module 214 is used for controlling the heating device to stop working and controlling to send out a prompt signal when the judging module 212 judges that no pot is placed on the heating device; and the identification module 204 is specifically configured to identify the type of the pot placed on the heating device of the cooking apparatus when the determination module 212 determines that the pot is placed on the heating device.

The identification module 204, the determination module 208, the first control module 210, the judgment module 212, the second control module 214, the first determination sub-module 2084, the second determination sub-module 2086, and the third determination sub-module 2046 may be a CPU, an MCU, a single chip microcomputer, an embedded device, and the like that are integrated or compatible with the control device 20 of the cooking apparatus, wherein the judgment sub-module 2082 may be a comparator, the first obtaining module 202, the second obtaining module 206, and the obtaining sub-module 2042 may be a signal collector, an I/O communication interface, or an antenna, and the conversion sub-module 2044 may be a converter.

A method for controlling a cooking apparatus according to a second embodiment of the present invention will be described in detail with reference to fig. 5.

It can be known that different pan types are placed on electromagnetic heating device, and different pans are different through sensing volume and resistance after the coupling, and the peak voltage and the peak current of the IGBT in the electromagnetic heating device are different under the same PMW condition, consequently need limit the biggest PWM of control heating device work to different pan types, consequently store the one-to-one correspondence of a plurality of pan types and a plurality of biggest PWM in cooking equipment.

Specifically, as shown in fig. 5, the method includes the following process steps:

step S502, identifying the type of the pot placed on the heating device.

Specifically, the type of cookware may be stainless steel cookware, stainless iron cookware, and the like.

Step S504, the maximum PWM corresponding to the identified type of the cookware is obtained.

Specifically, the maximum PWM corresponding to the identified type of the cookware is screened out from the stored correspondence between the plurality of cookware types and the plurality of maximum PWM.

Step S506, reading the current PWM of the cooking apparatus.

Step S508, determining whether the current PWM of the cooking apparatus is greater than the maximum PWM corresponding to the identified type of the pot, if so, performing step S510, otherwise, performing step S512.

Step S510, when it is determined that the current PWM is greater than the maximum PWM, the maximum PWM is taken as the target PWM, and step S514 is further performed.

Step S512, when the current PWM is judged to be less than or equal to the maximum PWM, the current PWM is taken as the target PWM, and step S514 is executed.

And step S514, controlling the heating device to work according to the current PWM.

According to the control method of the cooking equipment, different maximum PWM is set according to different pot types, PWM of different pot types is limited, IGBT peak voltage and peak current are limited when the heating device is matched with different pot types, and the operation reliability of the cooking equipment is improved.

As shown in fig. 6, the control device 60 of the cooking apparatus according to the second embodiment of the present invention includes a processor 602 and a memory 604, wherein the memory 604 stores a computer program operable on the processor 602, wherein the memory 604 and the processor 602 may be connected by a bus, and the processor 602 is configured to implement the steps of the control method of the cooking apparatus as described in the above embodiments when executing the computer program stored in the memory 604.

The steps in the method of the embodiments of the present disclosure may be sequentially adjusted, combined, and deleted according to actual needs.

The units in the control device of the cooking apparatus of the embodiment of the present disclosure can be combined, divided, and deleted according to actual needs.

According to an embodiment of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the control method of a cooking apparatus as described in the above embodiments.

Further, it will be understood that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

As an embodiment of the present invention, there is also provided a cooking apparatus including the control device of the cooking apparatus described in any one of the above embodiments.

The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and the technical scheme of the invention limits the target operation PWM of the cooking equipment according to the maximum operation PWM corresponding to the type of the cookware placed on the heating device, so that the influence on the operation reliability of the cooking equipment caused by the overlarge peak voltage and peak current of the IGBT is avoided, and the use safety of the cooking equipment is effectively ensured.

In the description of the present specification, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and specific meanings of the above terms in the disclosed embodiments may be understood according to specific situations by those of ordinary skill in the art.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method of a cooking apparatus, characterized by comprising:

acquiring initial operation PWM of the cooking equipment;

identifying a type of pot placed on a heating device of the cooking apparatus;

acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs;

determining a target operation PWM according to the target maximum operation PWM and the initial operation PWM;

and controlling the heating device to work according to the target operation PWM.

2. The method for controlling a cooking apparatus according to claim 1, wherein the step of determining a target operation PWM according to the target maximum operation PWM and the initial operation PWM specifically includes:

judging whether the initial operation PWM is larger than the target maximum operation PWM or not;

if so, determining the target maximum operation PWM as the target operation PWM, otherwise, determining the initial operation PWM as the target operation PWM.

3. The method for controlling a cooking apparatus according to claim 1 or 2, wherein the step of identifying the type of pot placed on the heating device of the cooking apparatus specifically comprises:

when the heating device works according to the initial operation PWM, acquiring an output pulse signal corresponding to the switching state of an IGBT of the cooking equipment;

converting the output pulse signal to a pulse frequency;

and determining the type of the cookware according to the size relation between the pulse frequency and a preset frequency threshold.

4. The method of controlling a cooking apparatus according to claim 3, further comprising, before the step of identifying the type of pot placed on the heating device of the cooking apparatus:

judging whether a cooker is placed on the heating device or not;

if so, controlling to identify the type of the cookware, otherwise, controlling the heating device to stop working and controlling to send out a prompt signal.

5. A control device of a cooking apparatus, comprising:

the first acquisition module is used for acquiring the initial operation PWM of the cooking equipment;

an identification module for identifying the type of a pot placed on a heating device of the cooking apparatus;

the second acquisition module is used for acquiring a target maximum operation PWM corresponding to the type of the cookware in a plurality of prestored maximum operation PWMs;

the determining module is used for determining target operation PWM according to the target maximum operation PWM and the initial operation PWM;

and the first control module is used for controlling the heating device to work according to the target operation PWM.

6. The control device of the cooking apparatus according to claim 5, wherein the determining module specifically comprises:

the judgment submodule is used for judging whether the initial operation PWM is larger than the target maximum operation PWM or not;

the first determining submodule is used for determining the target maximum operation PWM as the target operation PWM when the judging submodule judges that the initial operation PWM is larger than the target maximum operation PWM;

and the second determining submodule is used for determining the initial operation PWM as the target operation PWM when the judging submodule judges that the initial operation PWM is less than or equal to the target maximum operation PWM.

7. The control device of a cooking apparatus according to claim 5 or 6, wherein the identification module specifically comprises:

the acquisition submodule is used for acquiring an output pulse signal corresponding to the switching state of the IGBT of the cooking equipment when the heating device works according to the initial operation PWM;

a conversion submodule for converting the output pulse signal to a pulse frequency;

and the third determining submodule is used for determining the type of the cookware according to the size relation between the pulse frequency and a preset frequency threshold.

8. The control device of a cooking apparatus according to claim 7, further comprising:

the judging module is used for judging whether a cooker is placed on the heating device of the cooking equipment or not before the identifying module identifies the type of the cooker placed on the heating device;

the second control module is used for controlling the heating device to stop working and sending out a prompt signal when the judging module judges that no cookware is placed on the heating device; and

the identification module is specifically configured to: the judging module judges that when the cookware is placed on the heating device, the type of the cookware placed on the heating device of the cooking equipment is identified.

9. A control device of a cooking apparatus, comprising:

a processor;

memory for storing executable instructions of the processor, wherein the processor is configured to implement the steps of the method according to any one of claims 1 to 4 when executing the executable instructions stored in the memory.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.

11. A cooking apparatus, characterized by comprising control means of the cooking apparatus according to any one of claims 5 to 9.