Microwave Feeding Port Position Optimization Method, System, Microwave Oven and Storage Medium

Abstract

The present invention relates to the field of commercial microwave technology for artificial intelligence, and discloses a method, a system, a microwave oven and a storage medium for optimizing the positions of microwave feeding ports. It is used to obtain the optimal positions of two microwave feeding ports through simulation, so as to improve the microwave heating efficiency, make the distribution of microwaves more uniform, and improve the heating performance of the microwave oven. The method includes: obtaining the size of the microwave oven and constructing a three-dimensional model of the microwave oven; respectively simulating and setting two mutually perpendicular microwave feeding ports on the three-dimensional model of the microwave oven, and setting boundary conditions and excitation conditions; constructing a parameter model, performing parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model, and obtaining microwave evaluation coefficients under different parameter conditions; determining whether the microwave evaluation coefficients meet the preset optimal conditions; if they meet the preset optimal conditions, determining the optimal relative position parameters of the two microwave feeding ports; if not, iterating until the above preset optimal conditions are met and then stopping.

Description

Technical Field

[0001] The present invention relates to the field of commercial microwave technology, and particularly to a method and system for optimizing the position of a microwave feed port, a microwave oven, and a storage medium. Background Art

[0002] At present, most of the microwave feed ports in the built-in microwave ovens of commercial microwave ovens are single and the installation positions are not reasonably designed. In order to make the microwave distribution in the microwave oven more uniform and achieve uniform heating of food, generally, a flexible component is set structurally to relatively adjust the position of the feed port to achieve this purpose. That is, currently, some use a rotatable stirring piece above the feed port or set the feed port on a rotatable cover plate. However, the measure of adding a flexible component can only enhance the uniformity of microwave distribution to a certain extent because the microwave distribution of a single feed port itself has unevenness, and factors such as the placement position of the heated food, the original temperature of the heated food, and the size of the microwave oven cavity will also affect the uniformity of microwave distribution. The present invention proposes another optimized scheme for adjusting the position of the feed port. By using two microwave feed ports and obtaining the optimal positions of the microwave feed ports through simulation, the microwave heating efficiency is improved, the microwave distribution is made more uniform, and the heating performance of the microwave oven is improved. Summary of the Invention

[0003] The present invention provides a method and system for optimizing the position of a microwave feed port, a microwave oven, and a storage medium, which can identify customer needs through intelligent voice recognition, and can adjust the report model in a timely manner according to customer needs, so that the generated report is visualized, the report display form is customizable, and the data trend can be predicted.

[0004] To achieve the above object, in the first aspect of the present invention, a method for optimizing the position of a microwave feed port is provided, and the method includes:

[0005] Obtain the size of the microwave oven, and construct a three-dimensional model of the microwave oven based on the size of the microwave oven;

[0006] Simulate and set two mutually perpendicular microwave feed ports on the inner walls of the mutually perpendicular cavities of the three-dimensional model of the microwave oven, and set boundary conditions and excitation conditions for the three-dimensional model of the microwave oven;

[0007] Construct a parameter model for the relative position parameters of the two microwave feed ports based on a set microwave evaluation coefficient, where the relative position parameters are three-dimensional coordinate parameters of the two microwave feed ports in the three-dimensional model of the microwave oven, and the microwave evaluation coefficient is a microwave energy reflection coefficient and an electric field uniformity evaluation coefficient;

[0008] Perform parameter assignment, scanning, and calculation on the three-dimensional coordinates of the parameter model to obtain the microwave evaluation coefficients under different parameter conditions;

[0009] Determine whether the microwave evaluation coefficient meets the preset optimal conditions;

[0010] If the microwave evaluation coefficient meets the preset optimal conditions, determine the optimal relative position parameters of the two microwave feed ports;

[0011] If the microwave evaluation coefficient does not meet the preset optimal conditions, continue to assign parameters, scan and calculate the three-dimensional coordinates of the parameter model until the microwave evaluation coefficient meets the preset optimal conditions.

[0012] Optionally, in another embodiment of the microwave feed port position optimization method, before obtaining the microwave oven size and constructing a three-dimensional model of the microwave oven based on the microwave oven size, the method further includes:

[0013] Two mutually perpendicular microwave feed ports are pre-set on the inner walls of the mutually perpendicular cavities of the microwave oven, and a driving member connected to the two microwave feed ports respectively is arranged inside the microwave oven. The driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal.

[0014] Optionally, in another embodiment of the microwave feed port position optimization method, after determining the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions, the method further includes:

[0015] Generate a corresponding driving signal based on the optimal relative position parameters of the two microwave feed ports, and send the driving signal to the driving member of the microwave oven.

[0016] Optionally, in another embodiment of the microwave feed port position optimization method, the boundary conditions are that both microwave feed ports simulated in the three-dimensional model of the microwave oven are standard BJ-22 rectangular wave ports, and the electromagnetic wave distribution simulated at the two microwave feed ports is a standard sine distribution; the excitation condition is that the inner wall boundary of the cavity in the three-dimensional model of the microwave oven is simulated as an ideal conductor boundary with infinite conductivity.

[0017] Optionally, in another embodiment of the microwave feed port position optimization method, the mutually perpendicular inner walls of the cavity can be the top end and the front end of the cavity of the microwave oven; the microwave energy reflection coefficient is the ratio of the microwave reflection power to the incident power; the electric field uniformity evaluation coefficient is the coefficient of variation of the electric field, that is, the ratio of the standard deviation of the electric field to the average value of the electric field; the preset optimal conditions are the optimal threshold range of the microwave energy reflection coefficient and the optimal threshold range of the electric field uniformity evaluation coefficient.

[0018] Optionally, in another embodiment of the microwave feed port position optimization method, after parameter assignment, scanning, and calculation of the three-dimensional coordinates of the parameter model, the method further includes:

[0019] Calculating microwave evaluation coefficients under different parameter conditions according to a preset system of equations, where the preset system of equations includes the frequency-domain Helmholtz equation and the solid heat transfer equation.

[0020] Optionally, in another embodiment of the microwave feed port position optimization method, after determining the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions, the method further includes:

[0021] Setting multi-sided optimization conditions for the three-dimensional model of the microwave oven, where the multi-sided optimization conditions include the rotation state of the object to be heated, the size of the object to be heated, and the temperature of the object to be heated;

[0022] Assigning parameters to the multi-sided optimization conditions and calculating the microwave evaluation coefficients under different parameter conditions;

[0023] Judging whether the microwave evaluation coefficient meets the preset optimal conditions. If the microwave evaluation coefficient meets the preset optimal conditions, determining the updated optimal relative position parameters of the two microwave feed ports.

[0024] The second aspect of the present invention provides a microwave feed port position optimization system, which is applied to a microwave oven. The system includes:

[0025] A three-dimensional model construction module of the microwave oven, configured to obtain the size of the microwave oven and construct a three-dimensional model of the microwave oven based on the size of the microwave oven;

[0026] A microwave feed port simulation setting module, configured to respectively simulate and set two mutually perpendicular microwave feed ports on the inner walls of the mutually perpendicular cavities of the three-dimensional model of the microwave oven, and set boundary conditions and excitation conditions for the three-dimensional model of the microwave oven;

[0027] A parameter model construction module, configured to construct a parameter model for the relative position parameters of the two microwave feed ports based on a set microwave evaluation coefficient. The relative position parameters are three-dimensional coordinate parameters of the two microwave feed ports in the three-dimensional model of the microwave oven respectively, and the microwave evaluation coefficient is a microwave energy reflection coefficient and an electric field uniformity evaluation coefficient;

[0028] A parameter scanning and calculation module, configured to perform parameter assignment, scanning, and calculation on the three-dimensional coordinates of the parameter model to obtain microwave evaluation coefficients under different parameter conditions;

[0029] A judgment module, configured to judge whether the microwave evaluation coefficient meets the preset optimal conditions;

[0030] An optimal relative position parameter determination module, configured to determine the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions;

[0031] An iteration module, configured to continue to perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model if the microwave evaluation coefficient does not meet the preset optimal conditions until the microwave evaluation coefficient meets the preset optimal conditions.

[0032] A third aspect of the present invention provides a microwave oven, wherein two mutually perpendicular microwave feed ports are pre-set on the inner walls of the mutually perpendicular cavities of the microwave oven, and a driving member connected to the two microwave feed ports respectively is arranged inside the microwave oven, and the driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal; the microwave oven further includes: a memory and at least one processor, instructions are stored in the memory, and the memory and the at least one processor are interconnected through a line; the at least one processor calls the instructions in the memory to enable the processor to execute the microwave feed port position optimization method described above.

[0033] A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the microwave feed port position optimization method described above.

[0034] In the technical solution provided by the present invention, by obtaining the size of the microwave oven and constructing a three-dimensional model of the microwave oven; respectively simulating and setting two mutually perpendicular microwave feed ports on the three-dimensional model of the microwave oven, and setting boundary conditions and excitation conditions; constructing a parameter model, performing parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model, and obtaining microwave evaluation coefficients under different parameter conditions; judging whether the microwave evaluation coefficients meet the preset optimal conditions; if they meet the preset optimal conditions, determining the optimal relative position parameters of the two microwave feed ports; if not, iterating until the above preset optimal conditions are met and then stopping, thereby realizing a scheme for optimizing the position adjustment of the feed ports of a microwave oven with two feed ports. The present invention mainly obtains the optimal positions of the two microwave feed ports through simulation, improves the microwave heating efficiency, makes the distribution of microwaves more uniform, and improves the heating performance of the microwave oven. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 Schematic diagram of the process of an embodiment of the microwave feed port position optimization method of the present invention;

[0037] Figure 2 Schematic diagram of the three-dimensional model of the microwave oven for the microwave feed port position optimization method of the present invention;

[0038] Figure 3 Schematic diagram of an embodiment of the microwave feed port position optimization system of the present invention;

[0039] Figure 4 Schematic diagram of an embodiment of the microwave oven of the present invention. Detailed implementation manners

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the terms "comprising" or "having" and any variation thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0042] Currently, most of the microwave feed ports built into microwave ovens are single and solid. In order to make the microwave distribution in the microwave oven more uniform to achieve uniform heating of food, generally, a flexible component is set in the structure to relatively adjust the position of the feed port to achieve this purpose. However, the measure of adding a flexible component can only enhance the uniformity of the microwave distribution to a certain extent, because the microwave distribution of a single feed port itself has uneven distribution, and factors such as the placement position of the heated food, the original temperature of the heated food, and the size of the microwave oven cavity will also affect the uniformity of the microwave distribution. The present invention proposes a scheme for optimizing the position adjustment of two microwave feed ports, and obtains the optimal position of the microwave feed port through simulation.

[0043] The microwave feed port position optimization method provided by the present invention, refer to Figure 1 , an embodiment of the microwave feed port position optimization method of the present invention includes:

[0044] Step 101: Obtain the dimensions of the microwave oven and construct a three-dimensional model of the microwave oven based on the dimensions of the microwave oven.

[0045] Specifically, the processor can obtain the dimensions of the microwave oven for which the feed port position is to be determined, including but not limited to information such as the length, width, and height of the cubic cavity of the cavity, the thickness of the inner wall of the cavity, etc., and construct a three-dimensional model of the microwave oven based on the obtained dimensions of the microwave oven. This model can be constructed by a 3D model generation module built into the microwave oven processor, forming a three-dimensional space coordinate system of the microwave oven.

[0046] Furthermore, since the optimal position parameters of the two actual microwave feed ports in the microwave oven are obtained through simulation calculation in the present invention, before the step of obtaining the dimensions of the microwave oven and constructing a three-dimensional model of the microwave oven based on the dimensions of the microwave oven, the method further includes:

[0047] Two mutually perpendicular microwave feed ports are pre-set on the inner walls of the mutually perpendicular cavities of the microwave oven. The microwave feed ports are not solid but movable; and a driving member connected to the two microwave feed ports respectively is arranged inside the microwave oven, and the driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal.

[0048] Therefore, after determining the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions, the method further includes: generating a corresponding driving signal based on the optimal relative position parameters of the two microwave feed ports and sending the driving signal to the driving member of the microwave oven. That is, after the optimal relative position parameters are determined, a corresponding driving signal is generated and sent to the driving member.

[0049] Specifically, by setting a driving member, after the optimal positions of the two feed ports of the microwave oven are obtained through simulation calculation, parameters need to be generated into a driving signal to drive the above driving member to adjust the positions of the two movable feed ports. In the present invention, two feed ports are adopted to improve the microwave heating efficiency, and in order to reduce reflection and coupling, the positions of the two feed ports are perpendicular to each other and are at a certain distance apart, and the long sides and wide sides of the two waveguide feed ports are perpendicular to each other, because the polarization direction of the electric field is perpendicular to the microwave port. In order to reduce the coupling between ports, it is necessary to make the polarization directions of the electric fields perpendicular to each other, that is, to make the microwave feed ports perpendicular to each other.

[0050] Step 102: Simulate and set two mutually perpendicular microwave feed ports on the inner walls of the mutually perpendicular cavities of the three-dimensional model of the microwave oven, and set boundary conditions and excitation conditions for the three-dimensional model of the microwave oven.

[0051] Specifically, the processor simulates and sets two mutually perpendicular microwave feed ports on the inner walls of the cavity of the three-dimensional microwave oven model that are perpendicular to each other, and the mutually perpendicular inner walls of the cavity can be the top and the front end of the cavity of the microwave oven, as Figure 2 shown; and boundary conditions and excitation conditions are set for the three-dimensional microwave oven model. Further, boundary conditions are set for the two microwave feed ports: a perfect electric conductor is set around the microwave oven, and the boundary conditions are that the two microwave feed ports simulated and set in the three-dimensional microwave oven model are both standard BJ-22 rectangular wave ports, and the electromagnetic wave distribution simulated and set at the two microwave feed ports is a standard sine distribution, and the input microwave power is 500W; excitation conditions are set for the two microwave feed ports, and the excitation conditions are that the inner wall boundary of the cavity in the three-dimensional microwave oven model is simulated and set as an ideal electric conductor boundary with infinite conductivity. In the simulation calculation process of the present invention, the excitation conditions and boundary conditions are set to limit the influencing factors of the simulation calculation to the adjustment of the positions of the microwave feed ports, excluding the influence of other factors. For example, the influence of the bending angle of the microwave waveguide is excluded, so that the simulation process calculation is relatively direct and accurate.

[0052] Step 103: Construct a parameter model for the relative position parameters of the two microwave feed ports based on the set microwave evaluation coefficient. The relative position parameters are the three-dimensional coordinate parameters of the two microwave feed ports in the three-dimensional microwave oven model respectively, and the microwave evaluation coefficient is the microwave energy reflection coefficient and the electric field uniformity evaluation coefficient.

[0053] Specifically, the microwave energy reflection coefficient is the ratio of the microwave reflection power to the incident power, that is, S 11 parameter, which reflects the microwave energy reflection situation. The electric field uniformity evaluation coefficient is the coefficient of variation of the electric field, that is, the ratio of the standard deviation of the electric field to the average value of the electric field, that is, the COV value of the coefficient of variation of the electric field. The calculation formula is: where E δ is the standard deviation of the electric field, and E μ is the average value of the electric field. Further, the preset optimal conditions are the optimal threshold range of the microwave energy reflection coefficient and the optimal threshold range of the electric field uniformity evaluation coefficient. For example, S 11 =-20dB to -19dB, COV value = 0.95 to 0.97, that is, the optimal parameter interval that the microwave evaluation coefficient can reach under certain conditions.

[0054] Step 104: Perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model to obtain the microwave evaluation coefficients under different parameter conditions.

[0055] Further, the microwave evaluation coefficients under different parameter conditions are calculated according to a preset system of equations, and the preset system of equations includes the frequency-domain Helmholtz equation and the solid heat transfer equation. Specifically, the frequency-domain Helmholtz equation is used to solve the electric field E and the microwave energy reflection coefficient S 11 , and the solid heat transfer equation is used to solve the temperature field T. The coupling of the two equations can obtain the coupling coefficient as the heat source Q e (t). The position of the microwave feed port will affect the electric field distribution of the Helmholtz equation, thereby affecting S 11 and the heat source Q e (t), and further affecting the temperature distribution T.

[0056] Step 105: Determine whether the microwave evaluation coefficient meets the preset optimal conditions;

[0057] Step 106: If the microwave evaluation coefficient meets the preset optimal conditions, determine the optimal relative position parameters of the two microwave feed ports;

[0058] Step 107: If the microwave evaluation coefficient does not meet the preset optimal conditions, continue to assign parameters, scan, and calculate the three-dimensional coordinates of the parameter model until the microwave evaluation coefficient meets the preset optimal conditions.

[0059] Specifically, the above steps 105 to 107 are respectively requirements for judging, converging, and iterating whether the microwave evaluation coefficient meets the preset optimal conditions, so as to ensure that the optimal microwave evaluation coefficient can be found during the parameter scanning process, thereby obtaining the optimal relative position parameters of the microwave feed ports. Using the obtained optimal relative position parameters to adjust the feed ports of the microwave oven can improve the uniformity of microwave heating and increase the microwave heating efficiency.

[0060] To increase the reliability of determining the optimal position of the microwave feed port, further in another embodiment of the microwave feed port position optimization method of the present invention, after determining the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions, the method further includes:

[0061] Set multi-sided optimization conditions for the three-dimensional model of the microwave oven, and the multi-sided optimization conditions include the rotation state of the object to be heated, the size of the object to be heated, and the temperature of the object to be heated;

[0062] Assign parameters to the multi-sided optimization conditions and calculate the microwave evaluation coefficients under different parameter conditions;

[0063] Determine whether the microwave evaluation coefficient meets the preset optimal conditions. If the microwave evaluation coefficient meets the preset optimal conditions, determine the updated optimal relative position parameters of the two microwave feed ports.

[0064] Specifically, the optimal phase relative position parameters of the two microwave feed ports obtained based on the excitation conditions and boundary conditions do not take into account the factors of the substance being heated in the microwave oven. However, these factors also affect the heating efficiency and uniformity of the microwave, such as the essential chemical structure of the substance being heated, the size of the object being heated, and the temperature of the object being heated, etc. Based on the convenience of simulation, the present invention considers the rotation state of the object being heated. If the object being heated is a lunch box, rotating the position of the lunch box can improve the electric field uniformity; considering the size of the object being heated and the temperature of the object being heated, that is, analyzing and verifying the structure size and temperature of the lunch box; then, on the basis of adding the considered factors, further simulation calculations are carried out, and theoretically more optimized feed port position parameters can be obtained. Therefore, through the above steps, the updated optimal relative position parameters of the two microwave feed ports can be determined.

[0065] In summary, the embodiment of the present application realizes a scheme for optimizing the position adjustment of the feed ports of a microwave oven with two feed ports by obtaining the size of the microwave oven and constructing a three-dimensional model of the microwave oven; respectively simulating and setting two mutually perpendicular microwave feed ports on the three-dimensional model of the microwave oven, and setting boundary conditions and excitation conditions; constructing a parameter model, performing parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model, and obtaining microwave evaluation coefficients under different parameter conditions; judging whether the microwave evaluation coefficients meet the preset optimal conditions; if they meet the preset optimal conditions, determining the optimal relative position parameters of the two microwave feed ports; if they do not meet, iterating until they meet the above preset optimal conditions and then stopping. The present invention mainly obtains the optimal positions of the two microwave feed ports through simulation, improves the microwave heating efficiency, makes the distribution of the microwave more uniform, and improves the heating performance of the microwave oven.

[0066] The optimization method of the microwave feed port position in the embodiment of the present invention is described above. Next, the optimization system of the microwave feed port position in the embodiment of the present invention will be described. Please refer to Figure 3 , an embodiment of the optimization system of the microwave feed port position in the embodiment of the present invention includes:

[0067] A microwave oven three-dimensional model construction module 11, configured to obtain the size of the microwave oven and construct a three-dimensional model of the microwave oven based on the size of the microwave oven;

[0068] A microwave feed port simulation setting module 12, configured to respectively simulate and set two mutually perpendicular microwave feed ports on the inner walls of the mutually perpendicular cavities of the three-dimensional model of the microwave oven, and set boundary conditions and excitation conditions for the three-dimensional model of the microwave oven;

[0069] The parameter model construction module 13 is used to construct a parameter model for the relative position parameters of the two microwave feed ports based on the set microwave evaluation coefficients. The relative position parameters are the three-dimensional coordinate parameters of the two microwave feed ports in the three-dimensional model of the microwave oven respectively, and the microwave evaluation coefficients are the microwave energy reflection coefficient and the electric field uniformity evaluation coefficient;

[0070] The parameter scanning and calculation module 14 is used to perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model to obtain the microwave evaluation coefficients under different parameter conditions;

[0071] The judgment module 15 is used to judge whether the microwave evaluation coefficient meets the preset optimal conditions;

[0072] The optimal relative position parameter determination module 16 is used to determine the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal conditions;

[0073] The iteration module 17 is used to continue to perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model if the microwave evaluation coefficient does not meet the preset optimal conditions until the microwave evaluation coefficient meets the preset optimal conditions.

[0074] Optionally, in another embodiment of the microwave feed port position optimization system, the system further includes: two mutually perpendicular microwave feed ports are pre-set on the inner walls of the mutually perpendicular cavities of the microwave oven, and a driving member connected to the two microwave feed ports respectively is arranged inside the microwave oven. The driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal.

[0075] Optionally, in another embodiment of the microwave feed port position optimization system, the system further includes:

[0076] The driving signal generation and sending module is used to generate a corresponding driving signal based on the optimal relative position parameters of the two microwave feed ports and send the driving signal to the driving member of the microwave oven.

[0077] Optionally, in another embodiment of the microwave feed port position optimization system, the boundary conditions are that both of the two microwave feed ports simulated and set in the three-dimensional model of the microwave oven are standard BJ-22 rectangular wave ports, and the electromagnetic wave distributions simulated and set at the two microwave feed ports are standard sine distributions; the excitation condition is that the inner wall boundary of the cavity in the three-dimensional model of the microwave oven is simulated and set as an ideal conductor boundary with infinite conductivity.

[0078] Optionally, in another embodiment of the microwave feed port position optimization system, the mutually perpendicular inner walls of the cavity can be the top and the front end of the cavity of the microwave oven; the microwave energy reflection coefficient is the ratio of the microwave reflection power to the incident power; the electric field uniformity evaluation coefficient is the coefficient of variation of the electric field, that is, the ratio of the standard deviation of the electric field to the average value of the electric field; the preset optimal conditions are the optimal threshold range of the microwave energy reflection coefficient and the optimal threshold range of the electric field uniformity evaluation coefficient.

[0079] Optionally, in another embodiment of the microwave feed port position optimization system, the system further includes:

[0080] An equation set calculation module, configured to calculate microwave evaluation coefficients under different parameter conditions according to a preset equation set, where the preset equation set includes a frequency-domain Helmholtz equation and a solid heat transfer equation.

[0081] Optionally, in another embodiment of the microwave feed port position optimization system, the system further includes:

[0082] A multi-sided optimization condition setting module, configured to set multi-sided optimization conditions for the three-dimensional model of the microwave oven, where the multi-sided optimization conditions include the rotation state of the object to be heated, the size of the object to be heated, and the temperature of the object to be heated;

[0083] An assignment and calculation module, configured to assign parameters to the multi-sided optimization conditions and calculate the microwave evaluation coefficients under different parameter conditions;

[0084] A judgment and update module, configured to judge whether the microwave evaluation coefficient meets the preset optimal conditions. If the microwave evaluation coefficient meets the preset optimal conditions, the optimal relative position parameters for updating the two microwave feed ports are determined.

[0085] It should be noted that the system in the embodiment of the present invention can be used to implement all the technical solutions in the above method embodiment. The functions of its respective functional modules can be specifically implemented according to the methods in the above method embodiment. The specific implementation process can refer to the relevant descriptions in the above examples and will not be elaborated here.

[0086] Above Figure 3 The microwave feed port position optimization system in the embodiment of the present invention is described in detail from the perspective of modular functional entities. Next, the microwave oven in the embodiment of the present invention will be described in detail from the perspective of hardware processing.

[0087] Figure 4It is a schematic structural diagram of a microwave oven provided by an embodiment of the present invention. The microwave oven 300 may vary greatly due to different configurations or performances, and may include one or more central processing units (CPUs) 301 (for example, one or more processors) and a memory 309, and one or more storage media 308 (for example, one or more mass storage devices) storing application programs 307 or data 306. Among them, the memory 309 and the storage media 308 may be transient storage or persistent storage. The program stored in the storage media 308 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations for storing Boolean variables in graph computing. Further, the processor 301 may be configured to communicate with the storage media 308 and execute a series of instruction operations in the storage media 308 on the microwave oven 300.

[0088] The microwave oven 300 may further include one or more power supplies 302, one or more wired or wireless network interfaces 303, one or more input / output interfaces 304, and / or one or more operating systems 305, such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, and so on. Those skilled in the art can understand that Figure 4 the microwave oven structure shown in does not constitute a limitation on the microwave oven, and may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0089] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, systems, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0090] In several embodiments provided by the present invention, it should be understood that the disclosed systems, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other may be through some interfaces, and the indirect couplings or communication connections of the systems or units may be in electrical, mechanical, or other forms.

[0091] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0092] In addition, each functional unit in various embodiments of the present invention may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0093] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium, which can be non-volatile or volatile. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs and other various media that can store program codes.

[0094] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of various embodiments of the present invention.

Claims

1. A method for optimizing the position of a microwave feed port, which is applied to a microwave oven, characterized in that, the method for optimizing the position of the microwave feed port includes: obtaining the size of the microwave oven and constructing a three-dimensional model of the microwave oven based on the size of the microwave oven; simulating and setting two mutually perpendicular microwave feed ports on the inner walls of the cavities of the three-dimensional model of the microwave oven that are perpendicular to each other, and setting boundary conditions and excitation conditions for the three-dimensional model of the microwave oven; constructing a parameter model for the relative position parameters of the two microwave feed ports based on a set microwave evaluation coefficient, where the relative position parameters are three-dimensional coordinate parameters of the two microwave feed ports in the three-dimensional model of the microwave oven respectively, and the microwave evaluation coefficient is a microwave energy reflection coefficient and an electric field uniformity evaluation coefficient; performing parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model to obtain the microwave evaluation coefficients under different parameter conditions; judging whether the microwave evaluation coefficient meets a preset optimal condition; if the microwave evaluation coefficient meets the preset optimal condition, determining the optimal relative position parameters of the two microwave feed ports; if the microwave evaluation coefficient does not meet the preset optimal condition, continuing to perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model until the microwave evaluation coefficient meets the preset optimal condition; wherein, the mutually perpendicular inner walls of the cavity can be the top and the front end of the cavity of the microwave oven; the microwave energy reflection coefficient is the ratio of the microwave reflection power to the incident power; the electric field uniformity evaluation coefficient is the coefficient of variation of the electric field, that is, the ratio of the standard deviation of the electric field to the average value of the electric field; the preset optimal condition is the optimal threshold range of the microwave energy reflection coefficient and the optimal threshold range of the electric field uniformity evaluation coefficient.

2. The method for optimizing the position of a microwave feed port according to claim 1, which is applied to a microwave oven, characterized in that, before obtaining the size of the microwave oven and constructing a three-dimensional model of the microwave oven based on the size of the microwave oven, the method further includes: pre-setting two mutually perpendicular microwave feed ports on the inner walls of the cavities of the microwave oven that are perpendicular to each other, and arranging a driving member inside the microwave oven that is respectively connected to the two microwave feed ports, and the driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal.

3. The method for optimizing the position of a microwave feed port according to claim 2, which is applied to a microwave oven, characterized in that, after determining the optimal relative position parameters of the two microwave feed ports if the microwave evaluation coefficient meets the preset optimal condition, the method further includes: generating a corresponding driving signal based on the optimal relative position parameters of the two microwave feed ports and sending the driving signal to the driving member of the microwave oven.

4. The method for optimizing the position of a microwave feed port according to claim 1, which is applied to a microwave oven, characterized in that, The boundary conditions are that both of the two microwave feeding ports simulated in the three-dimensional model of the microwave oven are standard BJ-22 rectangular wave ports, and the electromagnetic wave distribution simulated at the two microwave feeding ports is a standard sine distribution; the excitation condition is that the inner wall boundary of the cavity in the three-dimensional model of the microwave oven is simulated as an ideal conductor boundary with infinite conductivity.

5. The method for optimizing the position of a microwave feeding port according to claim 1, which is applied to a microwave oven, characterized in that, after parameter assignment, scanning and calculation are performed on the three-dimensional coordinates of the parameter model, the method further includes: calculating microwave evaluation coefficients under different parameter conditions according to a preset system of equations, where the preset system of equations includes a frequency-domain Helmholtz equation and a solid heat transfer equation.

6. The method for optimizing the position of a microwave feeding port according to claim 5, which is applied to a microwave oven, characterized in that, if the microwave evaluation coefficients meet the preset optimal conditions, after determining the optimal relative position parameters of the two microwave feeding ports, the method further includes: setting multi-sided optimization conditions for the three-dimensional model of the microwave oven, where the multi-sided optimization conditions include the rotation state of the object to be heated, the size of the object to be heated, and the temperature of the object to be heated; assigning parameters to the multi-sided optimization conditions and calculating the microwave evaluation coefficients under different parameter conditions; judging whether the microwave evaluation coefficients meet the preset optimal conditions, and if the microwave evaluation coefficients meet the preset optimal conditions, determining the updated optimal relative position parameters of the two microwave feeding ports.

7. A system for optimizing the position of a microwave feeding port, which is applied to a microwave oven, characterized in that, it includes: a three-dimensional model construction module of the microwave oven, which is used to obtain the size of the microwave oven and construct a three-dimensional model of the microwave oven based on the size of the microwave oven; a microwave feeding port simulation setting module, which is used to respectively simulate and set two mutually perpendicular microwave feeding ports on the inner walls of the mutually perpendicular cavities of the three-dimensional model of the microwave oven, and set boundary conditions and excitation conditions for the three-dimensional model of the microwave oven; a parameter model construction module, which is used to construct a parameter model for the relative position parameters of the two microwave feeding ports based on the set microwave evaluation coefficients, where the relative position parameters are three-dimensional coordinate parameters of the two microwave feeding ports in the three-dimensional model of the microwave oven respectively, and the microwave evaluation coefficients are a microwave energy reflection coefficient and an electric field uniformity evaluation coefficient; a parameter scanning and calculation module, which is used to perform parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model to obtain microwave evaluation coefficients under different parameter conditions; a judgment module, which is used to judge whether the microwave evaluation coefficients meet the preset optimal conditions; an optimal relative position parameter determination module, which is used to determine the optimal relative position parameters of the two microwave feeding ports if the microwave evaluation coefficients meet the preset optimal conditions; an iteration module, which is used to continue performing parameter assignment, scanning and calculation on the three-dimensional coordinates of the parameter model if the microwave evaluation coefficients do not meet the preset optimal conditions until the microwave evaluation coefficients meet the preset optimal conditions; Wherein, the mutually perpendicular inner walls of the cavity can be the top end and the front end of the cavity of the microwave oven; the microwave energy reflection coefficient is the ratio of the microwave reflection power to the incident power; the evaluation coefficient of the electric field uniformity is the coefficient of variation of the electric field, that is, the ratio of the standard deviation of the electric field to the average value of the electric field; the preset optimal conditions are the optimal threshold range of the microwave energy reflection coefficient and the optimal threshold range of the evaluation coefficient of the electric field uniformity.

8. A microwave oven, characterized in that two mutually perpendicular microwave feed ports are pre-set on the mutually perpendicular inner walls of the cavity of the microwave oven, and a driving member connected to the two microwave feed ports respectively is arranged inside the microwave oven, and the driving member can receive a driving signal and adjust the positions of the two microwave feed ports based on the driving signal; the microwave oven further comprises: a memory and at least one processor, instructions are stored in the memory, and the memory and the at least one processor are interconnected through a circuit; the at least one processor calls the instructions in the memory so that the processor executes the microwave feed port position optimization method according to any one of claims 1, 3-6.

9. A computer-readable storage medium, on which a computer program is stored, characterized in that when the computer program is executed by a processor, it implements the microwave feed port position optimization method according to any one of claims 1, 3-6.

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