Solid-state radio frequency unfreezing method and device and electronic equipment

Abstract

The invention provides a solid-state radio frequency unfreezing method and device and electronic equipment, and relates to the technical field of solid-state radio frequency, and the method comprises the steps: obtaining food material type information of a to-be-unfrozen food material through image recognition equipment, and determining target unfreezing power according to the food material type information; scanning the to-be-thawed food material based on the target thawing power and a preset fixed frequency, receiving reflection power, and determining a frequency corresponding to a minimum reflection power value as a target frequency; scanning the energy field distribution of the food material area to determine a target phase corresponding to the energy field of the food material area, and adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to a target heating state, so that the antenna in the target heating state is unfrozen according to the target unfreezing power and the target frequency. And unfreezing the to-be-unfrozen food materials. The unfreezing efficiency and the unfreezing uniformity can be remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of solid-state radio frequency (RF) technology, and in particular to a solid-state RF defrosting method, apparatus, and electronic device. Background Technology

[0002] Solid-state radio frequency (RF) defrosting uses a solid-state source as the RF source. RF has better penetration and can achieve real-time feedback control and adjustment of parameters such as output power, frequency, and phase, providing precise controllability. It also improves the utilization rate of microwave energy. Currently, related technologies propose using sensors to obtain food information and matching appropriate RF power and initial defrosting time. By gradually adjusting power and impedance matching, efficient defrosting can be achieved. However, the above solutions only adjust the frequency and power. Therefore, they can only ensure that the RF energy is maximized to the load end, lacking the adjustment method between the three parameters of power, frequency, and phase in solid-state RF defrosting, thus failing to achieve precise control of the energy within the cavity. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a solid-state radio frequency defrosting method, apparatus and electronic device that can significantly improve defrosting efficiency and uniformity.

[0004] In a first aspect, embodiments of the present invention provide a solid-state radio frequency defrosting method, which is applied to a solid-state radio frequency defrosting system. The method includes: acquiring food type information of the food to be defrosted through an image recognition device, and determining a target defrosting power based on the food type information; scanning the food to be defrosted based on the target defrosting power and a preset fixed frequency, and receiving the reflected power, and determining the frequency corresponding to the lowest reflected power value as the target frequency; scanning the energy field distribution of the food area to determine the target phase corresponding to the energy field of the food area, and adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to a target heating state, so that the antenna in the target heating state defrosts the food to be defrosted according to the target defrosting power and the target frequency.

[0005] In one embodiment, the step of adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state includes: fixing the phase of the first antenna at the 0 phase, and performing phase adjustment processing on the second antenna according to the target phase to adjust the phase difference between the first antenna and the second antenna to the target phase, so that the first antenna and the second antenna are in the target heating state.

[0006] In one embodiment, the method further includes: when the first antenna and the second antenna are in a target heating state, the radio frequency signals emitted by the first antenna and the second antenna to the cavity where the food to be thawed is located are in an optimal superposition state during thawing.

[0007] In one embodiment, after the step of thawing the food to be thawed, the process includes: monitoring the reflected power during the thawing process to determine the power reflectivity, wherein the power reflectivity is the quotient of the reflected power and the preset fixed power; dynamically adjusting the target frequency by analyzing the changing trend of the power reflectivity; and intelligently monitoring the thawing completion time.

[0008] In one embodiment, the step of dynamically adjusting the target frequency by analyzing the trend of power reflectivity includes: when it is detected that the power reflectivity gradually increases over three consecutive monitoring time intervals and the increase is greater than a preset first reflectivity threshold, the optimal absorption frequency change of the food is determined, the food to be thawed is scanned again, and the target frequency is determined.

[0009] In one embodiment, the step of intelligently monitoring the thawing completion time includes: when the change in power reflectivity is less than a preset second reflectivity threshold within three consecutive monitoring time intervals, the thawing is determined to be complete.

[0010] In one implementation, after determining that the defrosting is complete, the process includes: stopping the radio frequency input and sending a defrosting stop notification to the user terminal.

[0011] Secondly, embodiments of the present invention also provide a solid-state radio frequency defrosting device, which is applied to a solid-state radio frequency defrosting system. The device includes: a power analysis module, which acquires the food type information of the food to be defrosted through an image recognition device and determines the target defrosting power based on the food type information; a frequency analysis module, which scans the food to be defrosted based on the target defrosting power and a preset fixed frequency, receives the reflected power, and determines the frequency corresponding to the lowest reflected power value as the target frequency; and a phase analysis module, which scans the energy field distribution of the food area to determine the target phase corresponding to the energy field of the food area, and adjusts the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state, so that the antenna in the target heating state defrosts the food to be defrosted according to the target defrosting power and the target frequency.

[0012] Thirdly, embodiments of the present invention also provide an electronic device, including a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement any of the methods provided in the first aspect.

[0013] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement any of the methods provided in the first aspect.

[0014] The embodiments of the present invention bring the following beneficial effects: This invention provides a solid-state radio frequency defrosting method, apparatus, and electronic device. The method acquires the food type information of the food to be defrosted using an image recognition device, determines the target defrosting power based on the food type information, scans the food to be defrosted based on the target defrosting power and a preset fixed frequency, receives the reflected power, determines the frequency corresponding to the lowest reflected power value as the target frequency, and scans the energy field distribution of the food region to determine the target phase corresponding to the energy field of the food region. Based on the target phase, the phase difference between the first antenna and the second antenna is adjusted to adjust the antenna to the target heating state. The antenna in the target heating state then defrosts the food according to the target defrosting power and the target frequency. This invention can confirm the dynamic adjustment value of the power by detecting the food type and the reflected power. By monitoring the reflected power, when the reflectivity continuously increases beyond a preset threshold, the defrosting frequency is re-measured and adjusted, thereby replacing the fixed defrosting power and fixed defrosting frequency of the prior art, and significantly improving the defrosting efficiency and uniformity.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic flowchart of a solid-state radio frequency defrosting method provided in an embodiment of the present invention; Figure 2 A flowchart illustrating a method for determining target thawing power according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the specific process of a solid-state radio frequency defrosting method provided in an embodiment of the present invention; Figure 4This is a schematic diagram of a solid-state radio frequency defrosting device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Currently, traditional thawing methods (such as natural thawing, static water thawing, and refrigerated thawing) suffer from low efficiency, nutrient loss, and bacterial growth. Microwave thawing typically uses a 2450MHz magnetron, which, while improving efficiency, is prone to edge effects and localized overheating, resulting in poor thawing uniformity. Solid-state radio frequency (RF) thawing uses a solid-state source as the RF source, which offers better penetration and allows for real-time feedback control of parameters such as output power, frequency, and phase, providing precise controllability and improving microwave energy utilization. Related technologies suggest using sensors to obtain food information, matching appropriate RF power and initial thawing time, and gradually adjusting power and resistance... While the above methods achieve efficient defrosting by mitigating mismatch, they only adjust the frequency and power. Therefore, they can only ensure that the radio frequency energy is maximized and transferred to the load end. They lack the method to adjust the three parameters of power, frequency, and phase in solid-state radio frequency defrosting, thus failing to achieve precise control of the energy in the cavity. Based on this, the solid-state radio frequency defrosting method, device, and electronic equipment provided by this invention can confirm the dynamic adjustment value of the power by the type of food and by monitoring the reflected power. By monitoring the reflected power, when the reflectivity continuously increases beyond a preset threshold, the defrosting frequency is re-measured and adjusted, thereby replacing the fixed defrosting power and fixed defrosting frequency of the prior art, and thus significantly improving the efficiency and uniformity of defrosting.

[0021] To facilitate understanding of this embodiment, a detailed description of a solid-state radio frequency (RF) defrosting method disclosed in this invention will be provided first. This method is applied to a solid-state RF defrosting system, which includes: 1. an RF input unit, including a solid-state source, an antenna, and other devices, used to output RF signals with specific power, frequency, and phase to the defrosting chamber; 2. a defrosting chamber, which is the defrosting area for frozen food; 3. infrared sensors, cameras, and other devices, used to determine the type of food or the placement area; 4. a microcontroller, used to dynamically adjust the power, frequency, and phase, and monitor the system status; 5. a detector, used to detect the antenna's transmitted power and reflected power; 6. a memory, used to record the energy distribution state corresponding to different phase differences; and 7. a display interface, used by the user to select the type of frozen food.

[0022] See Figure 1 The diagram shows a flow chart of a solid-state radio frequency defrosting method, which mainly includes the following steps S102 to S106: Step S102: Obtain the food type information of the food to be thawed through an image recognition device, and determine the target thawing power based on the food type information. In one embodiment, food confirmation can be done by user selection. When the device reads the user's selection of thawing-food type, it prompts the user to put the food to be thawed into the thawing chamber and close the door. Alternatively, the food type can be automatically identified by an image recognition device such as an infrared / camera, and the user is prompted to close the door after selecting thawing.

[0023] Further, see Figure 2 The flowchart illustrates a method for determining a target defrosting power. When the system receives interactive information from the user regarding the selection of food type or determines the food type information through an image recognition device, it sends a defrosting chamber closing prompt to the user and matches the food type information with a preset food defrosting power set to determine the target defrosting power. The target defrosting power includes the optimal defrosting power for each food type at each defrosting stage. Different types of food have different optimal defrosting powers; for example, frozen cakes are suitable for lower power defrosting. After the user initially selects the food type / the image recognition device identifies it, the corresponding optimal defrosting power is obtained and fixed at that power. Furthermore, the optimal defrosting power for different foods may be a variable value. The defrosting power is divided into n stages: Stage 1: P1; Stage 2: P2... Stage n: Pn. When the optimal defrosting power may be a variable value, it can be adjusted by monitoring reflected power or determined according to a defrosting power model corresponding to the food type.

[0024] Step S104: Based on the target thawing power and a preset fixed frequency, the food to be thawed is scanned, and the reflected power is received. The frequency corresponding to the lowest reflected power value is determined as the target frequency. The frequency can be determined by fixing an optimal frequency or by adjusting it in real time according to the reflected power. In one embodiment, the reflected power during the thawing process can be monitored to determine the power reflectivity. The target frequency can be dynamically adjusted by analyzing the trend of power reflectivity changes. The power reflectivity is the quotient of the reflected power and the preset fixed power. When the power reflectivity gradually increases over three consecutive monitoring time intervals, and the increase is greater than a preset first reflectivity threshold, the optimal absorption frequency change of the food is determined, and the food to be thawed is scanned again to determine the target frequency. Specifically, this includes the following: (1) Fixed optimal frequency: After the user confirms that the door has been closed and clicks the start defrost button, the radio frequency input unit is started first, and the fixed power P (lower power, P≤M) is continuously input into the cavity. The entire frequency band is scanned in steps of X MHz. The frequency corresponding to the lowest reflected power is the optimal frequency. Different defrost foods have different dielectric constants, and their optimal radio frequency absorption frequencies are different. The optimal absorption frequency Fx of the food is obtained.

[0025] (2) Real-time adjustment based on reflected power: After the defrosting program is officially started, monitor the power reflectivity (reflected power / input fixed power) of the monitoring radio frequency every time t. If the reflectivity increases for 3 consecutive times (Pt+1 / Px-Pt / Px>b, b>a), it indicates that the optimal absorption frequency of the food has changed. Rescan the optimal frequency and continuously input a fixed power P (lower power, P≤M) into the cavity. Scan the entire frequency band in steps of X MHz, and take the frequency corresponding to the lowest reflected power as the optimal frequency.

[0026] Step S106: Scan the energy field distribution of the food area to determine the target phase corresponding to the energy field of the food area, and adjust the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state, so that the antenna in the target heating state can perform thawing processing on the food to be thawed according to the target thawing power and the target frequency.

[0027] In one embodiment, when adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state, the phase of the first antenna can be fixed at 0 phase, and the phase of the second antenna can be adjusted according to the target phase to adjust the phase difference between the first antenna and the second antenna to the target phase, so that the first antenna and the second antenna are in the target heating state. In addition, when the first antenna and the second antenna are in the target heating state, the radio frequency signals emitted by the first antenna and the second antenna to the cavity where the food to be thawed is located during thawing are in the optimal superposition state.

[0028] Specifically, when two or more radio frequency signals enter the cavity, their phase difference directly determines the superposition of electromagnetic fields. If the signals are in phase (i.e., phase difference 0°), the electromagnetic field amplitudes are superimposed, resulting in a significant increase in energy density in a specific area. If they are out of phase (phase difference 180°), the electromagnetic field amplitudes cancel each other out, reducing energy density. The phase difference of the antenna output radio frequency affects the energy field distribution inside the cavity. When the device contains two antennas, the phase of one antenna is fixed at 0°. By changing the phase of the other antenna, the phase difference of the radio frequency can be changed, thereby adjusting the uniformity of energy feed into the cavity. After the power and frequency are confirmed, the infrared sensor / camera and other devices scan the food area and call the optimal phase difference Δφx of the energy field distribution in that area from the memory.

[0029] In one implementation, the defrosting completion time can be intelligently monitored by analyzing the trend of power reflectivity changes. When the change in power reflectivity is less than a preset second reflectivity threshold within three consecutive monitoring time intervals, defrosting is determined to be complete. Then, the RF input is stopped, and a defrosting stop prompt is sent to the user. That is, after the optimal frequency and phase difference are determined, the defrosting program is officially started. The RF is continuously input into the cavity with defrosting power Px, frequency Fx, and phase difference Δφx. At the same time, the microcontroller monitors the RF power reflectivity (reflected power / input fixed power) every time t. If the reflectivity change is within a certain threshold for three consecutive times (-a≤Pt+1 / Px-Pt / Px≤a), it indicates that defrosting is complete, the RF input is stopped, and the user is prompted that the defrosting program has ended.

[0030] The solid-state radio frequency (RF) defrosting method provided in this invention fully utilizes the adjustability of RF to effectively improve defrosting efficiency and uniformity, enabling intelligent RF defrosting for different types of frozen foods. Specifically, the solid-state RF frequency used in this invention is <2450MHz microwave, which has stronger penetration and higher defrosting efficiency. Furthermore, the power, frequency, and phase can be adjusted, allowing for precise defrosting of frozen foods. The defrosting process can also be monitored in real time by monitoring parameters such as emission and reflection power, enabling intelligent control of the defrosting process. In addition, by inputting the optimal defrosting power, frequency, and phase difference to the frozen foods, rapid and uniform defrosting is achieved. The defrosting endpoint is determined by monitoring the power absorption rate, thus realizing intelligent RF defrosting.

[0031] In practical applications, see Figure 3 The diagram shows a specific process flow of a solid-state radio frequency defrosting method. Assuming the defrosting device is a 915MHz radio frequency defrosting device, taking the defrosting of minced pork as an example, the user puts 2kg of minced pork into the defrosting chamber. The device reads the user's selected defrosting mode - food type (meat and poultry) and prompts the user to put the food into the defrosting chamber and close the door. When the door control switch detects that the user has closed the door, the user clicks to start defrosting.

[0032] First, the RF input unit is activated, continuously inputting a fixed power of 30W into the cavity. It scans the entire frequency band (900MHz~930MHz) in 1MHz steps, and takes the frequency corresponding to the lowest reflected power as the optimal frequency. It is found that the lowest reflected power is 5W at 925MHz. At the same time, the infrared sensor / camera and other devices scan the food area and call up the optimal phase difference Δφx of the energy field distribution in that area from the memory to obtain 135°.

[0033] Once the optimal frequency and phase difference are determined, the defrosting procedure officially begins. Radio frequency (RF) power is continuously input into the cavity at a fixed defrosting power of 200W, a frequency of 925MHz, and a phase difference of 135°. Simultaneously, the microcontroller monitors the RF power reflectivity (reflected power / input fixed power) every 10 seconds. If the reflectivity change is within a certain threshold (-a≤Pt+1 / Px-Pt / Px≤a) for three consecutive cycles, the reflected power distribution at 39min30s, 39min40s, 39min50s, and 40min is 150W, 150W, 151W, and 148W, with reflectivities of 75%, 75%, 75.5%, and 74%, respectively. The reflectivity change rate over three consecutive cycles is ≤1%. This indicates defrosting is complete, RF input is stopped, and the user is prompted that the defrosting procedure has ended.

[0034] Pork mince that has undergone solid-state radio frequency intelligent defrosting is more uniform than that defrosted using traditional microwave defrosting. In terms of cooking time, solid-state radio frequency defrosting takes 40 minutes with a defrosting rate of 70% and no overcooking. Traditional microwave defrosting (200W) takes 60 minutes with a defrosting rate of 55% and an overcooking rate of 10%. Radio frequency defrosting significantly shortens the defrosting time and effectively improves the uniformity of defrosting.

[0035] In summary, this invention can determine the dynamic adjustment value of the power by the type of food and the monitoring of the reflected power. By monitoring the reflected power, when the reflectivity continuously increases beyond a preset threshold, the defrosting frequency is re-measured and adjusted, thereby replacing the fixed defrosting power and fixed defrosting frequency of the prior art, and thus significantly improving the defrosting efficiency and uniformity.

[0036] Regarding the solid-state radio frequency defrosting method provided in the foregoing embodiments, this invention provides a solid-state radio frequency defrosting device, which is applied to a solid-state radio frequency defrosting system. (See [link]). Figure 4 The diagram shows a structural schematic of a solid-state radio frequency defrosting device, which includes the following components: The power analysis module 402 acquires the food type information of the food to be thawed through an image recognition device, and determines the target thawing power based on the food type information. The frequency analysis module 404 scans the food to be thawed based on the target thawing power and a preset fixed frequency, and receives the reflected power, and determines the frequency corresponding to the lowest value of the reflected power as the target frequency. The phase analysis module 406 scans the energy field distribution of the food area to determine the target phase corresponding to the energy field of the food area, and adjusts the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state. The antenna in the target heating state then performs the defrosting process on the food to be defrosted according to the target defrosting power and the target frequency.

[0037] The solid-state radio frequency defrosting device provided in this application embodiment can significantly improve defrosting efficiency and uniformity.

[0038] In one embodiment, when performing the step of adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antenna to the target heating state, the power analysis module 402 is further configured to: fix the phase of the first antenna at the 0 phase, and perform phase adjustment processing on the second antenna according to the target phase to adjust the phase difference between the first antenna and the second antenna to the target phase, so that the first antenna and the second antenna are in the target heating state.

[0039] In one embodiment, the power analysis module 402 is further configured to: when the first antenna and the second antenna are in the target heating state, the radio frequency signals emitted by the first antenna and the second antenna to the cavity where the food to be thawed is located during thawing are in the optimal superposition state.

[0040] In one embodiment, after the step of thawing the food to be thawed, the phase analysis module 406 is further configured to: monitor the reflected power during the thawing process, determine the power reflectivity, wherein the power reflectivity is the quotient of the reflected power and the preset fixed power; dynamically adjust the target frequency by analyzing the trend of the power reflectivity, and intelligently monitor the thawing completion time.

[0041] In one embodiment, when performing the step of dynamically adjusting the target frequency by analyzing the changing trend of power reflectivity, the phase analysis module 406 is further configured to: when it is detected that the power reflectivity gradually increases within three consecutive monitoring time intervals, and the increase is greater than a preset first reflectivity threshold, determine the optimal absorption frequency change of the food, rescan the food to be thawed, and determine the target frequency.

[0042] In one embodiment, when performing the step of intelligent monitoring of the thawing completion time, the phase analysis module 406 is further configured to: determine that thawing is complete when the change in power reflectivity is less than a preset second reflectivity threshold within three consecutive monitoring time intervals.

[0043] In one embodiment, after the step of confirming that the defrosting is complete, the phase analysis module 406 is further configured to: stop the radio frequency input and send a defrosting stop prompt to the user terminal.

[0044] The device provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0045] This invention provides an electronic device, specifically, the electronic device includes a processor and a storage device; the storage device stores a computer program, and the computer program, when run by the processor, executes the method described in any of the above embodiments.

[0046] Figure 5 The present invention provides a schematic diagram of the structure of an electronic device 100, which includes a processor 50, a memory 51, a bus 52 and a communication interface 53. The processor 50, the communication interface 53 and the memory 51 are connected through the bus 52. The processor 50 is used to execute executable modules, such as computer programs, stored in the memory 51.

[0047] The memory 51 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 53 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc.

[0048] Bus 52 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0049] The memory 51 is used to store programs. After receiving an execution instruction, the processor 50 executes the programs. The method executed by the device for defining the flow process disclosed in any of the foregoing embodiments of the present invention can be applied to the processor 50 or implemented by the processor 50.

[0050] Processor 50 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 50 or by instructions in software form. Processor 50 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 51. The processor 50 reads the information in memory 51 and, in conjunction with its hardware, completes the steps of the above method.

[0051] The computer program product of the readable storage medium provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the foregoing method embodiments. For specific implementation, please refer to the foregoing method embodiments, which will not be repeated here.

[0052] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the 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 cause a computer device (which may be a personal computer, electronic device, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0053] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A solid state radio frequency thawing method, characterized by, The method is applied to a solid-state radio frequency thawing system, and the method comprises: Obtaining food material type information of the food material to be thawed by an image recognition device, and determining a target thawing power according to the food material type information; Scanning the food material to be thawed based on the target thawing power and a preset fixed frequency, receiving a reflected power, and determining a target frequency corresponding to a minimum value of the reflected power; Scanning an energy field distribution of a food material region to determine a target phase corresponding to the energy field distribution of the food material region, and adjusting a phase difference between a first antenna and a second antenna according to the target phase to adjust the antennas to a target heating state, so that the antennas in the target heating state thaw the food material to be thawed according to the target thawing power and the target frequency.

2. The solid state radio frequency thawing method of claim 1, wherein, The step of adjusting the phase difference between the first antenna and the second antenna according to the target phase to adjust the antennas to the target heating state comprises: Fixing the phase of the first antenna at 0 phase, and adjusting the phase of the second antenna according to the target phase to adjust the phase difference between the first antenna and the second antenna to the target phase, so that the first antenna and the second antenna are in the target heating state.

3. The solid state radio frequency thawing method of claim 2, wherein, The method comprises: When the first antenna and the second antenna are in the target heating state, radio frequency signals emitted by the first antenna and the second antenna to a cavity where the food material to be thawed is located are in an optimal superposition state during thawing.

4. The solid state radio frequency thawing method of claim 1, wherein, After the step of thawing the food material to be thawed, the method comprises: Monitoring the reflected power during thawing to determine a power reflectivity, wherein the power reflectivity is a quotient of the reflected power and a preset fixed power; Analyzing a change trend of the power reflectivity to dynamically adjust the target frequency and intelligently monitor a thawing completion time.

5. The solid state radio frequency thawing method of claim 4, wherein, The step of analyzing the change trend of the power reflectivity to dynamically adjust the target frequency comprises: When it is monitored that the power reflectivity gradually increases in three continuous monitoring time intervals and an increase amount is greater than a preset first reflectivity threshold, it is determined that a best absorption frequency of the food material changes, the food material to be thawed is scanned again, and the target frequency is determined.

6. The solid state radio frequency thawing method of claim 4, wherein, The step of intelligently monitoring the thawing completion time comprises: When it is monitored that a change amount of the power reflectivity is less than a preset second reflectivity threshold in three continuous monitoring time intervals, it is determined that thawing is completed.

7. The solid state radio frequency thawing method of claim 6, wherein, After the step of determining that thawing is completed, the method comprises: Stopping radio frequency input and sending a thawing stop prompt to a user end.

8. A solid state radio frequency thawing device, characterized by, The device is applied to a solid-state radio frequency thawing system, and the device comprises: A power analysis module that obtains food material type information of the food material to be thawed by an image recognition device, and determines a target thawing power according to the food material type information; A frequency analysis module that scans the food material to be thawed based on the target thawing power and a preset fixed frequency, receives a reflected power, and determines a target frequency corresponding to a minimum value of the reflected power; The phase analysis module scans the energy field distribution of the food material area to determine a target phase corresponding to the energy field of the food material area, and adjusts the phase difference between the first antenna and the second antenna according to the target phase, so as to adjust the antennas to a target heating state, so that the antennas in the target heating state thaw the food material to be thawed according to the target thawing power and the target frequency.

9. An electronic device, comprising: The computer readable storage medium stores computer executable instructions, and when the computer executable instructions are called and executed by the processor, the computer executable instructions cause the processor to implement the method in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions, and when the computer executable instructions are called and executed by the processor, the computer executable instructions cause the processor to implement the method in any one of claims 1 to 7.

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