Electromagnetic wave heating control device, program, and electromagnetic wave heating control method

Abstract

The electromagnetic wave heating control device (100) includes an amplitude / phase information acquisition unit (103) that acquires amplitude information indicating the amplitude of an electromagnetic wave and phase information indicating the phase of the electromagnetic wave, and a signal generation unit (104) that generates a digital signal that is an electromagnetic wave having an amplitude and phase indicated by the amplitude information and phase information acquired by the amplitude / phase information acquisition unit (103) and outputs the generated digital signal to the electromagnetic wave heating device (600), and the signal generation unit (104) continuously changes the generated digital signal in accordance with the change over time of the amplitude information and phase information acquired by the amplitude / phase information acquisition unit (103).

Description

[Technical Field]

[0001] The present disclosure relates to an electromagnetic wave heating control device, a program, and an electromagnetic wave heating control method. [Background technology]

[0002] Conventionally, a microwave heating device has been disclosed that heats an object to be heated in a heating chamber by radiating microwaves into the heating chamber (see Patent Document 1). Patent Document 1 describes that the standing wave distribution in the heating chamber may be adjusted by adjusting at least one of the output level, frequency, and phase of the microwaves. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-201096 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, in an electromagnetic wave heating device that heats an object to be heated using electromagnetic waves such as microwaves, adjusting the phase of the electromagnetic waves adjusts the standing wave distribution, and adjusting the amplitude of the electromagnetic waves makes it possible to select the heating location on the object to be heated and control the temperature. However, generally, adjusting the phase of the generated electromagnetic waves changes the amplitude, and adjusting the amplitude changes the phase, so there is a problem in that it is difficult to input electromagnetic waves of the desired amplitude and phase into the electromagnetic wave heating device.

[0005] The present disclosure was made in response to the recognition of the above-mentioned problems, and aims to provide an electromagnetic wave heating control device, program, and electromagnetic wave heating control method that can input electromagnetic waves having a desired amplitude and phase into an electromagnetic wave heating device. [Means for solving the problem]

[0006] The electromagnetic wave heating control device according to the present disclosure includes an amplitude and phase information acquisition unit that acquires amplitude information indicating the amplitude of an electromagnetic wave and phase information indicating the phase of the electromagnetic wave, and a digital signal that is an electromagnetic wave having an amplitude and phase indicated by the amplitude information and phase information acquired by the amplitude and phase information acquisition unit. Heats the object by electromagnetic waves emitted from multiple antennas a signal generating unit that outputs to the electromagnetic wave heating device; a temperature information acquisition unit that acquires temperature detection information indicating the detection result of the temperature of the heated object heated by the electromagnetic wave heating device and temperature target information indicating a target value of the temperature when the heated object is heated, and learning is performed based on input of teacher data including any one or more of information of the time change of the frequency of the electromagnetic wave input to the electromagnetic wave heating device, the setting value of a tuner that matches the impedance of the signal generation unit and the impedance from the signal generation unit to the heated object, and information indicating the humidity and air pressure during heating, and the time change of the amplitude and phase of the electromagnetic wave input to the electromagnetic wave heating device, and the time change of the temperature of the heated object heated over a specific period based on a digital signal corresponding to the time change of the amplitude and phase, and based on input of the temperature detection information acquired by the temperature information acquisition unit and the target value of the temperature when the heated object is heated indicated by the temperature target information acquired by the temperature information acquisition unit, and a learning unit that generates a trained model that outputs the amplitude and phase of a digital signal to be generated by the signal generating unit, wherein the amplitude and phase information acquiring unit acquires amplitude information and phase information based on the amplitude and phase of the digital signal output by the trained model every time temperature detection information is acquired by the temperature information acquiring unit at each specific period, and the signal generating unit continuously changes the generated digital signal in accordance with time changes in the amplitude information and the phase information acquired by the amplitude and phase information acquiring unit, and the signal generating unit generates a plurality of digital signals that differ from each other in amplitude and phase so that the phase changes for each step corresponding to the predetermined specific period of 100 picoseconds or more and 100 seconds or less, based on the amplitude information and phase information acquired by the amplitude and phase information acquiring unit, and irradiates electromagnetic waves based on a corresponding digital signal from each of a plurality of antennas. It is characterized by: [Effects of the Invention]

[0007] According to the present disclosure, an electromagnetic wave having a desired amplitude and phase can be input to an electromagnetic wave heating device. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a block diagram showing a schematic configuration of an electromagnetic wave heating system according to a first embodiment. [Figure 2] 1 is a block diagram showing an example of a hardware configuration of an electromagnetic wave heating control device according to Embodiment 1. FIG. [Figure 3] 1 is a block diagram showing an example of a hardware configuration of an electromagnetic wave heating control device according to Embodiment 1. FIG. [Figure 4] 4 is a flowchart showing an example of processing performed by the electromagnetic wave heating control device according to the first embodiment. [Figure 5] FIG. 10 is a block diagram showing a schematic configuration of an electromagnetic wave heating system according to a second embodiment. [Figure 6] 10 is a flowchart showing an example of processing performed by an electromagnetic wave heating control device according to the second embodiment. [Figure 7] 7A, 7B, and 7C are graphs showing examples of temperature target information acquired by the electromagnetic wave heating control device according to the second embodiment. [Figure 8] 8A and 8B are diagrams showing changes over time in the phase of a digital signal output by an electromagnetic wave heating control device according to the second embodiment. [Figure 9]9A and 9B are schematic diagrams showing the distribution of an electromagnetic field due to standing waves in an electromagnetic wave heating device formed by digital signals output by an electromagnetic wave heating control device according to embodiment 2. FIG. [Figure 10] FIG. 10 is a block diagram showing a schematic configuration of an electromagnetic wave heating system according to a third embodiment. [Figure 11] 11 is a flowchart showing an example of processing performed by an electromagnetic wave heating control device according to the third embodiment. [Figure 12] 12A and 12B are schematic diagrams showing the distribution of an electromagnetic field due to standing waves formed in an electromagnetic wave heating device by interference waves of digital signals irradiated from a plurality of antennas. [Figure 13] 13A, 13B and 13C are schematic diagrams showing the distribution of an electromagnetic field due to standing waves formed in an electromagnetic wave heating device by interference waves of digital signals irradiated from a plurality of antennas. [Figure 14] 14A, 14B and 14C are schematic diagrams showing the distribution of an electromagnetic field due to standing waves formed in an electromagnetic wave heating device by interference waves of digital signals irradiated from a plurality of antennas. [Figure 15] FIG. 10 is a block diagram showing a schematic configuration of an electromagnetic wave heating system according to a fourth embodiment. [Figure 16] 10 is a flowchart showing an example of processing performed by an electromagnetic wave heating control device according to Embodiment 4. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Embodiment 1 First, an electromagnetic wave heating system 1 according to the first embodiment will be described with reference to Fig. 1. The electromagnetic wave heating system 1 according to the first embodiment is a system for heating an object M1 to be heated by irradiating the object M1 in an electromagnetic wave heating device 600 with electromagnetic waves. Fig. 1 is a block diagram showing a schematic configuration of the electromagnetic wave heating system 1 according to the first embodiment. As shown in Fig. 1, the electromagnetic wave heating system 1 according to the first embodiment includes an input / output device 10, an electromagnetic wave heating control device 100, a digital-to-analog converter (hereinafter also referred to as a "DA converter") 20, an amplifier 30, and an electromagnetic wave heating device 600 controlled by the electromagnetic wave heating control device 100, which are electrically connected to each other wirelessly or via a wire.

[0010] The input / output device 10 inputs information to the electromagnetic wave heating control device 100 and outputs information from the electromagnetic wave heating control device 100. For example, the input / output device 10 accepts an input operation from a user of the electromagnetic wave heating system 1 and inputs information corresponding to the user's input operation to the electromagnetic wave heating control device 100. Specifically, the input / output device 10 is configured with a keyboard, a mouse, and other input devices, accepts the user's input operation, generates a signal corresponding to the input operation, and inputs information corresponding to the generated signal as input information to the electromagnetic wave heating control device 100. For example, in response to the user's input operation, the input / output device 10 inputs to the electromagnetic wave heating control device 100 parameters indicating conditions for heating the object M1 to be heated, information regarding the characteristics of the object M1 to be heated, such as the size (volume), shape, material, relative permittivity, dielectric loss, and impedance, and other information, which are used when the electromagnetic wave heating control device 100 performs processing. In the first embodiment, information about the characteristics of the object M1 to be heated, such as the size (volume), shape, material, relative permittivity, dielectric loss, and impedance, is also referred to as characteristic information of the object M1 to be heated.

[0011] Furthermore, for example, the input / output device 10 acquires information from the electromagnetic heating control device 100 and outputs the acquired information as visual information. Specifically, the input / output device 10 is configured to include a liquid crystal display panel, an organic or inorganic EL (Electroluminescence) panel, a dot matrix display, or other output device, and outputs information from the electromagnetic heating control device 100 as visual information. The input / output device 10 may be configured as a touch panel that accepts user input operations and outputs information from the electromagnetic heating control device 100 as visual information, or may be configured as a storage device that inputs information to the electromagnetic heating control device 100 and stores information from the electromagnetic heating control device 100.

[0012] The electromagnetic wave heating control device 100 includes an amplitude / phase information acquisition unit 103, a signal generation unit 104, and a storage unit 106. The electromagnetic wave heating control device 100 is a device for outputting electromagnetic waves toward the electromagnetic wave heating device 600 and controlling the heating of the object to be heated M1 by the electromagnetic wave heating device 600.

[0013] The amplitude / phase information acquiring unit 103 acquires amplitude information indicating the amplitude of the electromagnetic wave and phase information indicating the phase of the electromagnetic wave. For example, the amplitude / phase information acquiring unit 103 acquires time-series data consisting of a combination of amplitude information and phase information that change at each predetermined specific period from the input / output device 10 or the storage unit 106. Also, for example, the amplitude / phase information acquiring unit 103 acquires the amplitude information and phase information at each predetermined specific period from the input / output device 10 or the storage unit 106. Also, for example, the amplitude / phase information acquiring unit 103 acquires the amplitude information and phase information by calculating the amplitude and phase of the electromagnetic wave based on information input from an external device.

[0014] For example, the amplitude / phase information acquiring unit 103 acquires, as the amplitude information and phase information, amplitude information indicating a desired amplitude and phase of the electromagnetic wave to be irradiated to the object to be heated M1. Specifically, the amplitude / phase information acquiring unit 103 acquires amplitude information and phase information corresponding to a target value of the temperature when the object to be heated M1 is heated, which is calculated based on past data in which the amplitude and phase of the electromagnetic wave when the object to be heated M1 is heated and the temperature rise of the object to be heated M1 are associated with each other.

[0015] The signal generating unit 104 generates a digital signal, which is an electromagnetic wave having an amplitude and phase indicated by the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 103. Furthermore, the signal generating unit 104 continuously changes the generated digital signal in accordance with the temporal change in the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 103. In other words, the signal generating unit 104 dynamically changes the generated digital signal in accordance with the temporal change in the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 103. For example, when the amplitude / phase information acquiring unit 103 acquires the amplitude information and phase information at each predetermined specific period, the signal generating unit 104 generates a digital signal having a new amplitude and phase in accordance with the temporal change in the amplitude and phase indicated by the amplitude information and phase information at each specific period.

[0016] For example, the signal generating unit 104 is configured with a digital signal processor (DSP) and generates a digital signal as a baseband signal, which is an electromagnetic wave having a specific frequency to be output to the electromagnetic wave heating device 600 so that the frequency changes over time in accordance with the time-varying amplitude information and phase information acquired by the amplitude / phase information acquiring unit 103. For example, the signal generating unit 104 generates a digital signal that is a microwave. The digital signal generated by the signal generating unit 104 may be a continuous wave or a modulated wave. The signal generating unit 104 outputs the generated digital signal to the DA converter 20. As shown in FIG. 1, the DA converter 20 is disposed in the electromagnetic wave transmission path from the signal generating unit 104 of the electromagnetic wave heating control device 100 to the electromagnetic wave heating device 600. Therefore, it can be said that the signal generating unit 104 outputs the generated digital signal to the electromagnetic wave heating device 600.

[0017] The storage unit 106 stores information used in the processing performed by the electromagnetic wave heating control device 100, information indicating the results of the processing performed by the electromagnetic wave heating control device 100, and information acquired by the electromagnetic wave heating control device 100 from external devices. For example, the storage unit 106 stores various parameters, data, and programs as information used when the electromagnetic wave heating control device 100 performs processing. Furthermore, for example, the storage unit 106 stores information indicating the amplitude and phase of electromagnetic waves previously generated by the electromagnetic wave heating control device 100 as information indicating the results of the processing performed by the electromagnetic wave heating control device 100. The information stored in the storage unit 106 is referenced and used when the electromagnetic wave heating control device 100 performs processing.

[0018] The DA converter 20 converts the electromagnetic wave, which is a digital signal input from the electromagnetic wave heating control device 100, into an electromagnetic wave, which is an analog signal. The DA converter 20 outputs the electromagnetic wave, which has been converted into an analog signal, to the amplifier 30.

[0019] The amplifier 30 amplifies the power of the electromagnetic waves from the DA converter 20. For example, the amplifier 30 is configured by a solid-state power amplifier (SSPA) having a plurality of semiconductor elements formed of a compound semiconductor such as gallium arsenide (GaAs) or gallium nitride (GaN) and arranged in parallel. The amplifier 30 outputs the amplified electromagnetic waves toward the electromagnetic wave heating device 600.

[0020] The electromagnetic wave heating device 600 includes an antenna 601 and a housing (not shown) that forms a space inside which an object to be heated M1 can be accommodated. The antenna 601 transmits electromagnetic waves input from the amplifier 30 as transmission waves (traveling waves) toward the inside of the housing, and receives reception waves (reflected waves) that are input to the antenna 601 as a result of the electromagnetic waves being reflected inside the housing. Configured in this way, the electromagnetic wave heating device 600 irradiates electromagnetic waves onto the object to be heated M1 accommodated in the electromagnetic wave heating device 600, thereby enabling heating of the object to be heated M1 or drying of the object to be heated M1 by heating the object to be heated M1.

[0021] Next, the hardware configuration of the electromagnetic wave heating control device 100 will be described with reference to Figures 2 and 3. Figure 2 is a diagram showing an example of the hardware configuration of the electromagnetic wave heating control device 100, and Figure 3 is a diagram showing an example of the hardware configuration of the electromagnetic wave heating control device 100 that is different from that shown in Figure 2. For example, as shown in Figure 2, the electromagnetic wave heating control device 100 is configured as a computer having a processor 100a, a memory 100b, and an I / O port 100c, and is configured so that the processor 100a reads and executes a program stored in the memory 100b.

[0022] 3, the electromagnetic heating control device 100 is configured as a computer having a processing circuit 100d, which is dedicated hardware, and an I / O port 100c, and executing a program. The processing circuit 100d is configured, for example, to have one or more of a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), and an FPGA (Field Programmable Gate Array). Each function of the electromagnetic heating control device 100 is realized by the processor 100a or the processing circuit 100d, which is dedicated hardware, executing a program. The electromagnetic heating control device 100 may also have hardware other than those described above, such as a hardware timer, to achieve the functions of the electromagnetic heating control device 100.

[0023] Next, details of the processing performed by the electromagnetic wave heating control device 100 will be described with reference to Fig. 1 and Fig. 4. Fig. 4 is a flowchart showing an example of processing performed by the electromagnetic wave heating control device 100 according to embodiment 1. As shown in Fig. 4, when the electromagnetic wave heating control device 100 starts processing, it first acquires amplitude information and phase information (step ST04). For example, in this processing, the electromagnetic wave heating control device 100 acquires information indicating a combination of specific amplitude and phase values ​​of the electromagnetic wave input to the electromagnetic wave heating device 600 at a specific time.

[0024] After performing the process of step ST04, the electromagnetic wave heating control device 100 generates a digital signal (step ST05). In this process, the electromagnetic wave heating control device 100 generates a signal using the signal generating unit 104 based on the amplitude information and phase information acquired in the process of step ST04. For example, if the process of step ST04 has acquired information indicating a combination of amplitude and phase of a specific value, the electromagnetic wave heating control device 100 generates a digital signal that is an electromagnetic wave indicated by the combination of amplitude and phase of the specific value and a preset frequency.

[0025] After performing the process of step ST05, the electromagnetic wave heating control device 100 outputs a digital signal (step ST06). In this process, the electromagnetic wave heating control device 100 outputs the digital signal generated in the process of step ST05 to the DA converter 20. In other words, in this process, the electromagnetic wave heating control device 100 outputs the digital signal generated in the process of step ST05 to the electromagnetic wave heating device 600 via the DA converter 20 and the amplifier 30.

[0026] After performing the process of step ST06, the electromagnetic wave heating control device 100 determines whether or not a termination condition, which is a condition for terminating the process, has been met (step ST08). In this process, the electromagnetic wave heating control device 100 determines that the termination condition has been met, for example, when a signal indicating the end of the process is input from the input / output device 10, when the temperature of the object M1 to be heated reaches a preset temperature based on information from a temperature sensor (not shown) for detecting the temperature of the object M1 to be heated, when a preset heating time for heating the object M1 has elapsed, or when other conditions for terminating heating of the object M1 to be heated are met.

[0027] If the termination condition is not met in the processing of step ST08 (NO in step ST08), the electromagnetic wave heating control device 100 returns the processing to step ST04. For example, the electromagnetic wave heating control device 100 repeats the processing from step ST04 to step ST08 shown in Fig. 4 at predetermined specific intervals. As a result, the electromagnetic wave heating control device 100 outputs, to the electromagnetic wave heating device 600, a digital signal that dynamically changes in accordance with the time change of the amplitude information and phase information acquired in the processing of step ST04.

[0028] If the termination condition is met in the process of step ST08 (YES in step ST08), the electromagnetic wave heating control device 100 terminates the process.

[0029] As described above, the electromagnetic wave heating control device 100 according to embodiment 1 includes an amplitude / phase information acquisition unit 103 that acquires amplitude information indicating the amplitude of an electromagnetic wave and phase information indicating the phase of the electromagnetic wave, and a signal generation unit 104 that generates a digital signal that is an electromagnetic wave having an amplitude and phase indicated by the amplitude information and phase information acquired by the amplitude / phase information acquisition unit 103 and outputs the generated digital signal to the electromagnetic wave heating device 600, and the signal generation unit 104 is configured to continuously change the generated digital signal in accordance with changes over time in the amplitude information and phase information acquired by the amplitude / phase information acquisition unit 103.

[0030] Generally, in an electromagnetic wave heating device, the amplitude and phase of the electromagnetic wave irradiated to the object to be heated change due to the influence of components present in the propagation path from when the electromagnetic wave is generated until it is irradiated, interference between multiple electromagnetic waves generated by diffuse reflection within the electromagnetic wave heating device, changes in the impedance of the object to be heated during heating, etc., making it difficult to form a desired electromagnetic field distribution within the electromagnetic wave heating device. Furthermore, generally, adjusting the phase of the generated electromagnetic wave changes the amplitude, and adjusting the amplitude changes the phase. Therefore, in order to input an electromagnetic wave of the desired amplitude and phase into the electromagnetic wave heating device, advanced calculations to correct the amplitude and phase are required, which increases the processing load of the device and also causes a time lag until an electromagnetic wave with the desired amplitude and phase is input into the electromagnetic wave heating device due to the influence of the calculation time.

[0031] In contrast, the electromagnetic wave heating control device 100 according to the first embodiment is configured as described above and can input electromagnetic waves having a desired amplitude and phase to the electromagnetic wave heating device 600 based on the amplitude information and phase information acquired by the amplitude / phase information acquisition unit 103. This allows the electromagnetic wave heating control device 100 to finely control the amplitude and phase of the electromagnetic waves input to the electromagnetic wave heating device 600 so as to change over time as desired, for example, by inputting electromagnetic waves having a desired amplitude and phase to the electromagnetic wave heating device 600 at the appropriate time, thereby forming a desired electromagnetic field distribution within the electromagnetic wave heating device and enabling, for example, selective heating and concentrated heating that select and heat specific parts of the object to be heated M1, uniform heating of the object to be heated M1, and heating according to a preset temperature profile that indicates the change over time in the temperature of the object to be heated M1.

[0032] Furthermore, since the electromagnetic wave heating control device 100 according to embodiment 1 is configured to generate and output electromagnetic waves having an amplitude indicated by amplitude information and a phase indicated by phase information, the influence of noise can be suppressed compared to, for example, a case where the amplitude and phase of a generated digital signal are adjusted by analog control using a gain adjuster such as a variable attenuator and a phase shifter after digital-to-analog conversion.

[0033] Furthermore, since the electromagnetic wave heating control device 100 according to embodiment 1 is configured to generate and output electromagnetic waves having an amplitude indicated by amplitude information and a phase indicated by phase information, an enable signal is not required, compared to, for example, adjusting the amplitude and phase of a generated digital signal by digital control, and therefore the number of wirings used for signal transmission can be reduced.

[0034] Furthermore, for example, generally, when the amplitude and phase of a generated digital signal are adjusted by analog control or digital control, an unstable waveform occurs before and after the adjustment. However, the electromagnetic wave heating control device 100 according to embodiment 1 is configured to generate and output an electromagnetic wave having an amplitude indicated by the amplitude information and a phase indicated by the phase information, and therefore can suppress the occurrence of such an unstable state.

[0035] The electromagnetic wave heating control device 100 according to embodiment 1 is configured to output a digital signal to an electromagnetic wave heating device 600 having an antenna 601, but the electromagnetic wave heating control device may also be configured to output multiple digital signals corresponding to each of the multiple antennas to an electromagnetic wave heating device having multiple antennas.

[0036] Embodiment 2 Next, an electromagnetic wave heating system 2 according to embodiment 2 will be described with reference to Fig. 5 to Fig. 9. The electromagnetic wave heating system 2 according to embodiment 2 differs from the electromagnetic wave heating system 1 according to embodiment 1 in that it acquires information about reflected waves from an electromagnetic wave heating device and information about the temperature inside the electromagnetic wave heating device, and the electromagnetic wave heating control device outputs electromagnetic waves based on this information, but the other configurations are similar, and the same configurations as those in embodiment 1 are given the same names and symbols as those in embodiment 1, and descriptions thereof will be omitted.

[0037] Fig. 5 is a block diagram showing a schematic configuration of an electromagnetic wave heating system 2 according to embodiment 2. As shown in Fig. 5, the electromagnetic wave heating system 2 according to embodiment 2 includes an input / output device 10, an electromagnetic wave heating control device 200, a DA converter 20, an amplifier 30, a tuner 40, and an electromagnetic wave heating device 700 controlled by the electromagnetic wave heating control device 200, which are electrically connected to each other wirelessly or by wire.

[0038] The electromagnetic wave heating control device 200 includes a temperature information acquisition unit 201, a reception information acquisition unit 202, an amplitude / phase information acquisition unit 203, a signal generation unit 204, and a memory unit 106. The electromagnetic wave heating control device 200 is a device for outputting electromagnetic waves toward the electromagnetic wave heating device 700 and controlling the heating of the object to be heated M1 by the electromagnetic wave heating device 700.

[0039] The temperature information acquiring unit 201 acquires temperature detection information indicating the detection results (measurement results) of the temperature of the object M1 to be heated by the electromagnetic wave heating device 700. For example, the temperature information acquiring unit 201 acquires temperature detection information indicating the detection results of the temperature of the object M1 to be heated by the electromagnetic wave heating device 700 based on information from a temperature sensor 703, the details of which will be described later, which is provided to detect the temperature inside the electromagnetic wave heating device 700. Specifically, the temperature information acquiring unit 201 acquires temperature detection information indicating the detection results of the temperature distribution of the object M1 to be heated by the electromagnetic wave heating device 700, and temperature detection information indicating the detection results of the maximum temperature, average temperature, and surface temperature of the object M1 to be heated by the electromagnetic wave heating device 700, for the entire object M1 to be heated or for each part of the object M1 to be heated.

[0040] Furthermore, for example, the temperature information acquisition unit 201 acquires temperature detection information at predetermined specific intervals. Specifically, the temperature information acquisition unit 201 acquires temperature detection information from the temperature sensor 703 at predetermined specific intervals of not less than 100 picoseconds and not more than 100 seconds. Specifically, the temperature information acquisition unit 201 acquires temperature detection information from the temperature sensor 703 at predetermined specific intervals of not less than 1 / 100th of a second and not more than 1 / 10th of a second. Specifically, the temperature information acquisition unit 201 acquires temperature detection information from the temperature sensor 703 at 1 / 30th of a second or 1 / 60th of a second.

[0041] Furthermore, the temperature information acquiring unit 201 acquires temperature target information indicating a target value of the temperature when the object to be heated M1 is heated by the electromagnetic wave heating device 700. For example, the temperature information acquiring unit 201 acquires temperature target information indicating target values ​​of the maximum temperature, average temperature, and surface temperature of the object to be heated M1 at a specific time as the temperature target information indicating the target value of the temperature when the object to be heated M1 is heated. For example, the temperature information acquiring unit 201 acquires the temperature target information by referring to information stored in the storage unit 106. For example, the temperature information acquiring unit 201 acquires the temperature target information based on information from the input / output device 10. The temperature information acquisition unit 201 may acquire the target temperature information at a predetermined specific period, or may be configured to acquire all the information indicating the time change of the target temperature of the object M1 to be heated from the start of heating of the object M1 to the end of heating all at once, or may be configured to acquire all the information indicating the time change of the target temperature of the object M1 to be heated all at once, and then update the information indicating the time change of the target temperature of the object M1 to new information when the target temperature value is changed, or at a predetermined specific period.

[0042] In addition, the temperature information acquisition unit 201 may be configured to acquire only information indicating the final temperature of the heated object M1 at the end of heating of the heated object M1 based on the information stored in the memory unit 106 or information from the input / output device 10, and calculate information indicating the change in temperature of the heated object M1 over time during heating based on the final temperature and the initial temperature of the heated object M1 at the start of heating of the heated object M1, thereby acquiring temperature target information indicating the target value of the temperature of the heated object M1 at a specific time. Specifically, the temperature information acquisition unit 201 calculates information indicating the change in temperature over time using a regression model based on one or more of the following information: characteristic information of the object M1 to be heated; time-varying temperature when the object M1 to be heated was previously heated; time-varying amplitude, phase, and frequency of the electromagnetic waves input to the electromagnetic wave heating device 700; tuner setting values; and information indicating the humidity and air pressure during heating; a data table in which multiple pieces of information are associated with each other; or a trained model generated based on input of training data including multiple pieces of information among the characteristic information of the object M1 to be heated; time-varying temperature when the object M1 to be heated was previously heated; time-varying amplitude, phase, and frequency of the electromagnetic waves input to the electromagnetic wave heating device 700; tuner setting values; and information indicating the humidity and air pressure during heating. Note that the information indicating the humidity and air pressure during heating may be configured to be acquired based on information from a hygrometer and barometer (not shown) located in the electromagnetic wave heating device, or may be configured to be acquired based on information from the input / output device 10.

[0043] The reception information acquiring unit 202 acquires reception information relating to the magnitude of the reception wave received within the electromagnetic wave heating device 700. For example, the reception information acquiring unit 202 acquires reception information indicating the magnitude of the reception power (reflected power) of the reception wave received within the electromagnetic wave heating device 700. Furthermore, for example, the reception information acquiring unit 202 acquires reception information indicating a reflection coefficient, which is the ratio between the amplitude of the transmission wave (traveling wave) transmitted into the electromagnetic wave heating device 700 and the amplitude of the reception wave (reflected wave) received within the electromagnetic wave heating device 700. Specifically, based on information indicating the reception wave of the antenna 601 acquired from the antenna 601, the reception information acquiring unit 202 acquires information indicating the amplitude of the transmission wave transmitted into the electromagnetic wave heating device 700 and information indicating the amplitude of the reception wave when the antenna 601 of the electromagnetic wave heating device 700 receives the electromagnetic wave generated by diffuse reflection within the electromagnetic wave heating device, and acquires reception information indicating the reflection coefficient based on these acquired pieces of information.

[0044] The amplitude / phase information acquiring unit 203 acquires amplitude information and phase information by setting the amplitude and phase of the digital signal to be generated by the signal generating unit 204 based on the temperature detection information acquired by the temperature information acquiring unit 201. For example, when the temperature of the object to be heated M1 indicated by the temperature detection information acquired by the temperature information acquiring unit 201 reaches a preset upper limit temperature, the amplitude / phase information acquiring unit 203 sets a new amplitude of the digital signal so as to reduce the amplitude of the digital signal to be generated by the signal generating unit 204.

[0045] Furthermore, the amplitude and phase information acquiring unit 203 sets new amplitude and phase of the digital signal to be generated by the signal generating unit 204 every time temperature detection information is acquired by the temperature information acquiring unit 201. For example, when temperature detection information is acquired by the temperature information acquiring unit 201 at specific intervals, the amplitude and phase information acquiring unit 203 sets new amplitude and phase of the digital signal to be generated by the signal generating unit 204 at the specific intervals.

[0046] Furthermore, the amplitude / phase information acquisition unit 203 acquires amplitude information and phase information by setting the amplitude and phase of the digital signal to be generated by the signal generation unit 204 based on the target temperature information acquired by the temperature information acquisition unit 201. For example, the amplitude / phase information acquisition unit 203 compares the temperature of the object M1 to be heated indicated by the temperature detection information acquired by the temperature information acquisition unit 201 at a specific time with the target temperature value of the object M1 to be heated at the specific time indicated by the target temperature information acquired by the temperature information acquisition unit 201, and sets a new amplitude of the digital signal to be generated by the signal generation unit 204 according to the temperature difference. Specifically, when the temperature of the object M1 to be heated indicated by the temperature detection information acquired by the temperature information acquisition unit 201 at a specific time is lower than the temperature of the object M1 to be heated at the specific time indicated by the target temperature information acquired by the temperature information acquisition unit 201, the amplitude / phase information acquisition unit 203 sets a new amplitude so that the amplitude of the digital signal to be generated by the signal generation unit 204 is increased according to the temperature difference.

[0047] Furthermore, the amplitude and phase information acquisition unit 203 acquires amplitude information and phase information by setting the amplitude and phase of the digital signal to be generated by the signal generation unit 204 based on the reception information acquired by the reception information acquisition unit 202. For example, when the reception power indicated by the reception information acquired by the reception information acquisition unit 202 reaches a preset threshold, the amplitude and phase information acquisition unit 203 sets a new amplitude and phase of the digital signal to be generated by the signal generation unit 204 so as to reduce the reception power. For example, when the reflection coefficient indicated by the reception information acquired by the reception information acquisition unit 202 reaches a preset threshold, the amplitude and phase information acquisition unit 203 sets a new amplitude and phase of the digital signal to be generated by the signal generation unit 204 so as to reduce the reflection coefficient.

[0048] Furthermore, for example, the amplitude and phase information acquisition unit 203 acquires amplitude information and phase information by setting the amplitude and phase of the digital signal to be generated by the signal generation unit 204 based on the temperature detection information acquired by the temperature information acquisition unit 201, the target temperature information acquired by the temperature information acquisition unit 201, and the received information acquired by the received information acquisition unit 202. Specifically, the amplitude and phase information acquisition unit 203 calculates a temperature of the object to be heated M1 at a specific time indicated by the temperature target information acquired by the temperature information acquisition unit 201, the temperature of the object to be heated M1 at a specific time indicated by the temperature detection information acquired by the temperature information acquisition unit 201, the reflection coefficient indicated by the received information acquired by the received information acquisition unit 202, the elapsed time from the start of heating of the object to be heated M1, the time changes in the amplitude, phase, and frequency of the digital signal generated by the signal generation unit 204 from the start of heating of the object to be heated M1 to the specific time, the setting value of the tuner, the characteristic information of the object to be heated M1 acquired in advance, and information indicating the humidity and air pressure during heating. The new amplitude and phase of the digital signal to be generated by the signal generating unit 204 at a specific time are set based on a data table in which multiple pieces of information are associated with each other, such as the target value of the temperature of the heated object M1 at the specific time indicated by the temperature detection information acquired by the temperature information acquiring unit 201, the temperature of the heated object M1 at the specific time indicated by the temperature detection information acquired by the temperature information acquiring unit 201, the reflection coefficient indicated by the received information acquired by the received information acquiring unit 202, the elapsed time from the start of heating, the amplitude, phase and frequency changes over time of the digital signal generated by the signal generating unit 204 from the start of heating to the specific time, the tuner setting value, the characteristic information of the heated object M1 acquired in advance, and information indicating the humidity and air pressure during heating, or a trained model generated based on the input of training data including multiple pieces of information.

[0049] The signal generating unit 204 generates a digital signal, which is an electromagnetic wave having an amplitude and phase indicated by the amplitude information and phase information acquired by the amplitude and phase information acquiring unit 203. The signal generating unit 204 also continuously changes the generated digital signal in accordance with time changes in the amplitude information and phase information acquired by the amplitude and phase information acquiring unit 203. The signal generating unit 204 outputs the generated digital signal to the DA converter 20. Note that details of the signal generating unit 204 are similar to those of the signal generating unit 104 according to the first embodiment, and therefore will not be described here.

[0050] The hardware configuration of the electromagnetic wave heating control device 200 according to the second embodiment is similar to the hardware configuration of the electromagnetic wave heating control device 100 according to the first embodiment, and therefore a description thereof will be omitted.

[0051] The tuner 40 matches the impedance of the signal generating unit 204 with the impedance from the signal generating unit 204 to the object to be heated M1. The tuner 40 may be configured to match the impedance based on input information from the input / output device 10, or may be configured to match the impedance based on a setting value of the tuner 40 calculated by the electromagnetic wave heating control device 200 based on one or more pieces of information selected from the temperature detection information acquired by the temperature information acquiring unit 201, the reception information acquired by the reception information acquiring unit 202, the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 203, and the characteristic information of the object to be heated M1.

[0052] The electromagnetic wave heating device 700 includes an antenna 601, a housing (not shown) that forms a space inside that can accommodate the object M1 to be heated, and a temperature sensor 703 for measuring the temperature of the object M1 to be heated. For example, the temperature sensor 703 is configured with one or more radiation temperature sensors that measure the temperature of the object M1 in a non-contact manner and acquires information indicating the temperature of the object M1 to be heated. Alternatively, for example, the temperature sensor 703 is configured with one or more infrared cameras and acquires image information indicating the temperature distribution of the object M1 to be heated.

[0053] For example, the temperature sensor 703 acquires information indicating the temperature of the object M1 at a predetermined specific period. Specifically, the temperature sensor 703 acquires information indicating the temperature of the object M1 at a predetermined specific period of not less than 100 picoseconds and not more than 100 seconds. Also, specifically, the temperature sensor 703 acquires information indicating the temperature of the object M1 at a predetermined specific period of not less than 1 / 100th of a second and not more than 1 / 10th of a second. Also, specifically, the temperature sensor 703 acquires information indicating the temperature of the object M1 at every 1 / 30th of a second or every 1 / 60th of a second. The temperature sensor 703 outputs the acquired information to the electromagnetic wave heating control device 200, causing the temperature information acquisition unit 201 to acquire temperature detection information.

[0054] Configured in this manner, the electromagnetic wave heating device 700 irradiates electromagnetic waves onto the object to be heated M1 stored within the electromagnetic wave heating device 700, thereby enabling heating of the object to be heated, drying of the object to be heated M1 by heating the object to be heated, and phase change of the object to be heated M1 by heating the object to be heated, and outputs information indicating the temperature of the object to be heated M1 during heating to the electromagnetic wave heating control device 200.

[0055] Next, the details of the processing performed by the electromagnetic wave heating control device 200 will be described with reference to Fig. 5 to Fig. 9. Fig. 6 is a flowchart showing an example of the processing performed by the electromagnetic wave heating control device 200 according to embodiment 2. It is assumed that the electromagnetic wave heating control device 200 acquires characteristic information of the object to be heated M1 in advance and stores it in the storage unit 106 before starting the processing shown in Fig. 6. Furthermore, part of the processing performed by the electromagnetic wave heating control device 200 according to embodiment 2 is similar to the processing performed by the electromagnetic wave heating control device 100 according to embodiment 1, and therefore, the same processing as in embodiment 1 will be assigned the same reference numerals as in embodiment 1 and will not be described again.

[0056] 6, when the electromagnetic wave heating control device 200 starts processing, it first acquires temperature detection information (step ST01). In this processing, the electromagnetic wave heating control device 200 acquires temperature detection information indicating the temperature of the object to be heated M1 at a specific time based on information from the temperature sensor 703.

[0057] After performing the process of step ST01, the electromagnetic wave heating control device 200 acquires reception information (step ST02). In this process, the electromagnetic wave heating control device 200 acquires reception information regarding the magnitude of the received wave based on the received wave received by the antenna 601 of the electromagnetic wave heating device 700.

[0058] After performing the process of step ST02, the electromagnetic wave heating control device 200 acquires temperature target information (step ST03). In this process, the electromagnetic wave heating control device 200 acquires temperature target information indicating a target value for the temperature of the object M1 to be heated at a specific time when the object M1 to be heated is heated.

[0059] 7A, 7B, and 7C are graphs showing examples of temperature target information acquired by the electromagnetic wave heating control device 200 according to embodiment 2. FIGS. 7A, 7B, and 7C each show a time change (temperature profile) of the target temperature of the object M1 indicated by different pieces of temperature target information. In the process of step ST03, the electromagnetic wave heating control device 200 may be configured to acquire, for example, any of the temperature profiles shown in FIGS. 7A, 7B, and 7C as the temperature target information, or to acquire only the temperature target information indicating the target temperature of the object M1 at a specific time immediately thereafter. Alternatively, the electromagnetic wave heating control device 200 may be configured to acquire temperature target information indicating the target temperature of the object M1 immediately thereafter by calculating a new target temperature of the object M1 immediately thereafter based on the temperature detection result of the object M1 immediately before. For example, in the processing of step ST03, the temperature information acquisition unit 201 calculates the target temperature value of the new heated object M1 immediately afterwards by correcting the previously acquired temperature profile based on the temperature difference between the target temperature value of the heated object M1 at a specific time indicated by the previously set temperature profile and the detected temperature of the heated object M1 at the specific time.

[0060] 6, after performing the process of step ST03, the electromagnetic wave heating control device 200 acquires amplitude information and phase information (step ST14). In this process, the electromagnetic wave heating control device 200 acquires new amplitude information and phase information by setting the amplitude and phase of a new digital signal to be generated by the signal generating unit 204 based on the temperature detection information acquired in step ST01, the reception information acquired in the process of step ST02, and the target temperature information acquired in the process of step ST03.

[0061] For example, in the processing of step ST14, the electromagnetic wave heating control device 200 compares the temperature of the object M1 to be heated at a specific time indicated by the temperature detection information acquired in the processing of step ST01 with the target temperature value of the object M1 to be heated at the specific time indicated by the target temperature information acquired in the processing of step ST03, and sets a new amplitude of the digital signal to be generated by the signal generating unit 204 according to the temperature difference. Also, for example, in the processing of step ST14, if the temperature of the object M1 to be heated indicated by the temperature detection information acquired in the processing of step ST01 has reached a preset upper limit temperature, the electromagnetic wave heating control device 200 sets a new amplitude of the digital signal to be generated by the signal generating unit 204 so as to reduce the amplitude of the digital signal.

[0062] After performing the process of step ST14, the electromagnetic wave heating control device 200 generates a digital signal (step ST15). In this process, the electromagnetic wave heating control device 200 generates a signal using the signal generating unit 204 based on the amplitude information and phase information acquired in the process of step ST14. For example, if the process of step ST14 has acquired information indicating a combination of amplitude and phase of a specific value, the electromagnetic wave heating control device 200 generates a digital signal that is an electromagnetic wave indicated by the combination of amplitude and phase of the specific value and a preset frequency.

[0063] After performing the process of step ST15, the electromagnetic wave heating control device 200 outputs a digital signal (step ST16). In this process, the electromagnetic wave heating control device 200 outputs the digital signal generated in the process of step ST15 to the DA converter 20. In other words, in this process, the electromagnetic wave heating control device 200 outputs the digital signal generated in the process of step ST15 to the electromagnetic wave heating device 600 via the DA converter 20 and the amplifier 30.

[0064] 8A and 8B are diagrams showing changes over time in the phase of a digital signal output by the electromagnetic wave heating control device 200 according to embodiment 2. FIGS. 8A and 8B show changes over time in different phases of the digital signals output by the electromagnetic wave heating control device. For example, as shown in FIG. 8A, the electromagnetic wave heating control device 200 changes the phase of the digital signal generated by the signal generating unit 204 between 0 degrees and 180 degrees over time, step by step. Also, as shown in FIG. 8B, the electromagnetic wave heating control device 200 changes the phase of the digital signal generated by the signal generating unit 204 in steps of 10 degrees from 0 degrees to 180 degrees over time, step by step.

[0065] For example, the electromagnetic wave heating control device 200 changes the phase of the digital signal generated by the signal generating unit 204 in steps corresponding to a predetermined specific period of not less than 100 picoseconds and not more than 100 seconds. Specifically, the electromagnetic wave heating control device 200 changes the phase of the digital signal generated by the signal generating unit 204 in steps corresponding to a specific period of not less than 1 / 100th of a second and not more than 1 / 10th of a second. Furthermore, specifically, the electromagnetic wave heating control device 200 changes the phase of the digital signal generated by the signal generating unit 204 in 1 / 30th of a second or 1 / 60th of a second.

[0066] 9A and 9B are schematic diagrams showing the distribution of the electromagnetic field due to standing waves in the electromagnetic wave heating device formed by the digital signal controlled by the electromagnetic wave heating control device according to embodiment 2. As shown in Fig. 9A and 9B, for example, when the digital signal is generated by the signal generating unit 204 so that the electromagnetic field distribution when the phase of the digital signal is 0 [deg] and the electromagnetic field distribution when the phase of the digital signal generated by the signal generating unit 204 is also 0 [deg] switch over time, the superposition of these electromagnetic fields makes the electromagnetic field distribution uniform over one entire cycle of phase switching, making it possible to uniformly heat the entire object to be heated M1.

[0067] As shown in FIG. 6, after performing the process of step ST16, the electromagnetic wave heating control device 200 determines whether or not a termination condition, which is a condition for terminating the process, has been met (step ST08). If the termination condition has not been met in the process of step ST08 (NO in step ST08), the electromagnetic wave heating control device 200 returns the process to step ST01. For example, the electromagnetic wave heating control device 200 repeats the processes of steps ST01 to ST08 shown in FIG. 6 at a predetermined specific period, for example, at least 100 picoseconds but not more than 100 seconds. As a result, the electromagnetic wave heating control device 200 outputs to the electromagnetic wave heating device 700 a digital signal that dynamically changes at each specific period in accordance with the time change of the amplitude information and phase information acquired in the process of step ST14. If the termination condition has been met in the process of step ST08 (YES in step ST08), the electromagnetic wave heating control device 200 terminates the process.

[0068] As described above, the electromagnetic wave heating control device 200 according to the second embodiment includes a temperature information acquisition unit 201 that acquires temperature detection information indicating the detection result of the temperature of the object to be heated M1 heated by the electromagnetic wave heating device 700, and is configured to acquire amplitude information and phase information by setting the amplitude and phase of a digital signal to be generated by the signal generation unit 204 based on the temperature detection information acquired by the temperature information acquisition unit 201. With this configuration, the electromagnetic wave heating control device 200 inputs electromagnetic waves whose amplitude and phase are dynamically adjusted based on changes in the temperature of the object to be heated M1 to the electromagnetic wave heating device 700, thereby enabling heating in accordance with changes in the temperature of the object to be heated M1.

[0069] Moreover, the electromagnetic wave heating control device 200 according to the second embodiment includes a temperature information acquisition unit 201 that acquires target temperature information indicating a target value of the temperature when heating the object to be heated M1 by the electromagnetic wave heating device 700, and is configured to acquire amplitude information and phase information by setting the amplitude and phase of a digital signal to be generated by the signal generation unit 204 based on the target temperature information acquired by the temperature information acquisition unit 201. With this configuration, the electromagnetic wave heating control device 200 inputs electromagnetic waves whose amplitude and phase have been adjusted based on the target value of the temperature of the object to be heated M1 to the electromagnetic wave heating device 700, thereby enabling heating to be performed so that the temperature of the object to be heated M1 reaches the target value.

[0070] Furthermore, the electromagnetic wave heating control device 200 according to the second embodiment includes a reception information acquisition unit 202 that acquires reception information related to the magnitude of the reception wave received in the electromagnetic wave heating device 700, and is configured to acquire amplitude information and phase information by setting the amplitude and phase of the digital signal to be generated by the signal generation unit 204 based on the reception information acquired by the reception information acquisition unit 202. With this configuration, the electromagnetic wave heating control device 200 inputs electromagnetic waves whose amplitude and phase have been adjusted based on the magnitude of the reception wave received in the electromagnetic wave heating device 700 into the electromagnetic wave heating device 700, thereby making it possible to perform heating according to the magnitude of the reception wave received in the electromagnetic wave heating device 700.

[0071] In the first and second embodiments, the electromagnetic wave heating systems are both provided with an electromagnetic wave heating device having a single antenna, but the present invention is not limited to this, and the electromagnetic wave heating system may also be provided with an electromagnetic wave heating device having multiple antennas and heating the object to be heated M1 with electromagnetic waves radiated from the multiple antennas. Furthermore, when the electromagnetic wave heating device has multiple antennas, the electromagnetic wave heating control device may be configured to output multiple digital signals having different amplitudes and phases, and to radiate electromagnetic waves based on these multiple digital signals independently from each of the multiple antennas.

[0072] Embodiment 3 Next, an electromagnetic wave heating system 3 according to embodiment 3 will be described with reference to Fig. 10 to Fig. 14. The electromagnetic wave heating system 3 according to embodiment 3 differs from the electromagnetic wave heating system 2 according to embodiment 2 in the configuration in which an electromagnetic wave heating control device outputs a plurality of digital signals and electromagnetic waves based on these plurality of digital signals are radiated from a plurality of antennas that the electromagnetic wave heating device has, but the other configurations are similar, and the same configurations as those in embodiment 2 are given the same names and symbols as those in embodiment 2 and descriptions thereof will be omitted.

[0073] Fig. 10 is a block diagram showing a schematic configuration of an electromagnetic wave heating system 3 according to embodiment 3. As shown in Fig. 10, the electromagnetic wave heating system 3 according to embodiment 3 includes an input / output device 10, an electromagnetic wave heating control device 300, DA converters 21 and 22, amplifiers 31 and 32, tuners 41 and 42, and an electromagnetic wave heating device 800 controlled by the electromagnetic wave heating control device 300, which are electrically connected to each other wirelessly or by wire.

[0074] The electromagnetic wave heating control device 300 includes a temperature information acquisition unit 301, a reception information acquisition unit 202, an amplitude and phase information acquisition unit 303, a signal generation unit 304, and a memory unit 106. The electromagnetic wave heating control device 300 is a device for outputting electromagnetic waves toward the electromagnetic wave heating device 800 and controlling the heating of the object to be heated M1 by the electromagnetic wave heating device 800.

[0075] The temperature information acquiring unit 301 acquires temperature target information indicating target values ​​of the temperature when the object to be heated M1 is heated by the electromagnetic wave heating device 800. For example, the temperature information acquiring unit 301 acquires temperature target information indicating target values ​​of the maximum temperature, average temperature, and surface temperature of the object to be heated M1 at a specific time as the temperature target information indicating the target value of the temperature when the object to be heated M1 is heated. Furthermore, for example, when selectively heating or concentrated heating of specific parts of the object to be heated M1 is performed by the electromagnetic wave heating device 800, the temperature information acquiring unit 301 acquires temperature target information indicating target values ​​of the maximum temperature, average temperature, surface temperature, etc. for each part of the object to be heated M1 at a specific time as the temperature target information indicating the target value of the temperature when the object to be heated M1 is heated. The function of the temperature information acquisition unit 301 to acquire temperature detection information indicating the detection result of the temperature of the heated object M1 heated by the electromagnetic wave heating device 800 is similar to the function of the temperature information acquisition unit 201 in embodiment 2 to acquire temperature detection information indicating the detection result of the temperature of the heated object M1 heated by the electromagnetic wave heating device 700, so the explanation will be omitted.

[0076] The amplitude / phase information acquisition unit 303 acquires a plurality of pieces of amplitude information and a plurality of pieces of phase information by setting a plurality of combinations of amplitudes and phases of a plurality of digital signals to be generated by the signal generation unit 304, based on one or more of the temperature detection information and target temperature information acquired by the temperature information acquisition unit 301 and the reception information acquired by the reception information acquisition unit 202. Specifically, the amplitude / phase information acquisition unit 303 acquires a plurality of pieces of amplitude information and a plurality of pieces of phase information that are different from each other, by setting a plurality of combinations of a plurality of amplitudes and a plurality of phases that are different from each other, for the signal generation unit 304 to generate a plurality of digital signals corresponding to each of the plurality of antennas included in the electromagnetic wave heating device 800, based on one or more of the temperature detection information and target temperature information acquired by the temperature information acquisition unit 301 and the reception information acquired by the reception information acquisition unit 202.

[0077] For example, the amplitude / phase information acquisition unit 303 learns based on input of training data including specific amplitude information and specific phase information acquired by the amplitude / phase information acquisition unit 303 and temperature detection information acquired by the temperature information acquisition unit 301 during a specific period after a digital signal based on the specific amplitude information and specific phase information is generated by the signal generation unit 304, and sets multiple different amplitudes and multiple different phases using a trained model that outputs the amplitudes and phases of each of multiple digital signals to be generated by the signal generation unit 304 based on input of the target temperature value for heating the heated object M1 indicated by the target temperature information acquired by the temperature information acquisition unit 301.

[0078] The signal generating unit 304 generates a plurality of digital signals corresponding to the plurality of antennas of the electromagnetic wave heating device 800 based on the plurality of amplitude information and the plurality of phase information acquired by the amplitude / phase information acquiring unit 303. For example, the signal generating unit 304 generates a plurality of digital signals including a first digital signal corresponding to the first antenna 801 and a second digital signal corresponding to the second antenna 802 of the electromagnetic wave heating device 800 based on the plurality of amplitude information and the plurality of phase information acquired by the amplitude / phase information acquiring unit 303. Furthermore, the signal generating unit 304 continuously changes the generated digital signals in accordance with time changes in the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 303. The signal generating unit 304 outputs the generated first digital signal to the DA converter 21 and outputs the generated second digital signal to the DA converter 22. Details other than the fact that the signal generating unit 304 generates a plurality of signals based on the plurality of amplitude information and the plurality of phase information acquired by the amplitude / phase information acquiring unit 303 are the same as those of the signal generating unit 104 according to the first embodiment, and therefore will not be described again.

[0079] The hardware configuration of the electromagnetic wave heating control device 300 according to the third embodiment is similar to the hardware configuration of the electromagnetic wave heating control device 100 according to the first embodiment, and therefore a description thereof will be omitted.

[0080] The electromagnetic wave, which is the first digital signal output from the signal generating unit 104, is input to the electromagnetic wave heating device 800 via the DA converter 21, amplifier 31, and tuner 41, and the electromagnetic wave, which is the second digital signal output from the signal generating unit 104, is input to the electromagnetic wave heating device 800 via the DA converter 22, amplifier 32, and tuner 42. The DA converters 21 and 22, the amplifiers 31 and 32, and the tuners 41 and 41 are similar to the DA converter 20, amplifier 30, and tuner 40 according to the second embodiment, respectively, and therefore description thereof will be omitted.

[0081] The electromagnetic wave heating device 800 includes multiple antennas including a first antenna 801 and a second antenna 802, a housing (not shown) that defines a space inside that can accommodate an object to be heated M1, and a temperature sensor 703 for measuring the temperature of the object to be heated M1. The first antenna 801 transmits electromagnetic waves input from the amplifier 31 into the housing as outgoing waves and receives received waves that are input to the first antenna 801 as a result of the electromagnetic waves being reflected within the housing. The second antenna 802 transmits electromagnetic waves input from the amplifier 32 into the housing as outgoing waves and receives received waves that are input to the second antenna 802 as a result of the electromagnetic waves being reflected within the housing. Thus configured, the electromagnetic wave heating device 800 irradiates electromagnetic waves from the multiple antennas onto the object to be heated M1 housed within the electromagnetic wave heating device 800, thereby heating the object to be heated, drying the object to be heated M1 by heating the object to be heated, and causing a phase change in the object to be heated by heating the object to be heated, and outputs information indicating the temperature of the object to be heated M1 during heating to the electromagnetic wave heating control device 300. For example, a plurality of antennas including a first antenna 801 and a second antenna 802 of the electromagnetic wave heating device 800 function as an array antenna that heats the object to be heated M1 by interference waves of the electromagnetic waves transmitted from the respective antennas.

[0082] Next, details of the processing performed by the electromagnetic wave heating control device 300 will be described with reference to Fig. 10 to Fig. 14. Fig. 11 is a flowchart showing an example of processing performed by the electromagnetic wave heating control device 300 according to embodiment 3. Note that part of the processing performed by the electromagnetic wave heating control device 300 according to embodiment 3 is similar to the processing performed by the electromagnetic wave heating control device 200 according to embodiment 2, and therefore, processing similar to that in embodiment 2 will be assigned the same reference numerals as in embodiment 2 and description thereof will be omitted.

[0083] 11, when the electromagnetic wave heating control device 300 starts processing, it first acquires temperature detection information (step ST01). After performing the processing of step ST01, the electromagnetic wave heating control device 300 acquires reception information (step ST12). In this processing, the electromagnetic wave heating control device 300 acquires reception information regarding the magnitude of the received waves for each antenna, based on the received waves received by multiple antennas including the first antenna 801 and the second antenna 802 of the electromagnetic wave heating device 800, using the reception information acquisition unit 202.

[0084] After performing the process of step ST12, the electromagnetic wave heating control device 300 acquires temperature target information (step ST13). In this process, the electromagnetic wave heating control device 300 acquires temperature target information indicating target values ​​such as the surface temperature of each part of the object to be heated M1 at a specific time.

[0085] After performing the process of step ST13, the electromagnetic wave heating control device 300 acquires amplitude information and phase information (step ST24). In this process, the electromagnetic wave heating control device 300 acquires new pieces of amplitude information and new pieces of phase information by setting multiple combinations of amplitudes and phases of multiple digital signals to be generated by the signal generating unit 304 based on the temperature detection information acquired in the process of step ST01, the reception information acquired in the process of step ST12, and the target temperature information acquired in the process of step ST13.

[0086] For example, in the processing of step ST24, the electromagnetic wave heating control device 300 reads out the trained model stored in the storage unit 106 and inputs the temperature detection information acquired in the processing of step ST01 and the target temperature information acquired in the processing of step ST13 into the trained model, thereby causing the signal generation unit 304 to output multiple combinations of amplitude and phase of multiple digital signals to be generated, and setting multiple combinations of amplitude and phase as the output results. Also, for example, in this processing, when the received power indicated by the reception information acquired in the processing of step ST12 reaches a preset threshold, the electromagnetic wave heating control device 300 sets new amplitude and phase of the digital signal to be generated by the signal generation unit 304 so as to reduce the received power.

[0087] After performing the process of step ST24, the electromagnetic wave heating control device 300 generates a first digital signal and a second digital signal (step ST25). In this process, the electromagnetic wave heating control device 300 generates a plurality of digital signals including the first digital signal and the second digital signal using the signal generating unit 204 based on the plurality of amplitude information and the plurality of phase information acquired in the process of step ST24.

[0088] After performing the process of step ST25, the electromagnetic wave heating control device 300 outputs a first digital signal and a second digital signal (step ST26). In this process, the electromagnetic wave heating control device 300 outputs a plurality of digital signals including the first digital signal and the second digital signal generated in the process of step ST25 to the electromagnetic wave heating device 600.

[0089] 12A and 12B are schematic diagrams showing the distribution of the electromagnetic field due to standing waves in an electromagnetic wave heating device formed by digital signals from multiple antennas. As shown in Fig. 12A and 12B, for example, when multiple digital signals are generated by the signal generating unit 404 so that the digital signals transmitted from each of the multiple antennas switch between a first state and a second state over time, the superposition of these electromagnetic fields makes the distribution of the electromagnetic field uniform throughout one cycle of switching between the first state and the second state, making it possible to uniformly heat the entire object to be heated M1.

[0090] As shown in FIG. 11, after performing the process of step ST26, the electromagnetic wave heating control device 300 determines whether or not a termination condition, which is a condition for terminating the process, has been met (step ST08). If the termination condition has not been met in the process of step ST08 (NO in step ST08), the electromagnetic wave heating control device 300 returns the process to step ST01. For example, the electromagnetic wave heating control device 300 repeats the processes of steps ST01 to ST08 shown in FIG. 11 at predetermined specific intervals. As a result, the electromagnetic wave heating control device 300 outputs, to the electromagnetic wave heating device 800, a plurality of digital signals that dynamically change in accordance with the time change of the amplitude information and phase information acquired in the process of step ST24. If the termination condition has been met in the process of step ST08 (YES in step ST08), the electromagnetic wave heating control device 300 terminates the process.

[0091] As described above, the electromagnetic wave heating control device 300 according to the third embodiment is configured to generate a plurality of digital signals having different amplitudes and phases based on the amplitude information and phase information acquired by the amplitude / phase information acquisition unit 303, and to irradiate a corresponding digital signal from among the plurality of digital signals generated by the signal generation unit 304 from each of the plurality of antennas of the electromagnetic wave heating device 800. Thus configured, the electromagnetic wave heating control device 300 can heat the object M1 to be heated using electromagnetic waves transmitted from the plurality of antennas. Furthermore, by appropriately setting the phase difference between the electromagnetic waves transmitted from the plurality of antennas, the electromagnetic wave heating control device 300 can perform selective heating, concentrated heating, and uniform heating of the object M1 to be heated.

[0092] In the third embodiment, the electromagnetic wave heating control device 300 is configured to output a first digital signal corresponding to the first antenna 801 and a second digital signal corresponding to the second antenna 802 to an electromagnetic wave heating device 800 having a first antenna 801 and a second antenna 802, but is not limited to this. The electromagnetic wave heating control device may be configured to output a plurality of digital signals corresponding to each of the plurality of antennas to an electromagnetic wave heating device having a plurality of antennas, and for example, the electromagnetic wave heating control device may be configured to output a plurality of digital signals corresponding to each of three or more antennas to an electromagnetic wave heating device having three or more antennas.

[0093] 13A, 13B, and 13C are schematic diagrams showing the distribution of the electromagnetic field caused by standing waves in an electromagnetic wave heating device formed by digital signals from multiple antennas. As shown in Figures 13A, 13B, and 13C, for example, when the electromagnetic wave heating device has a linear array antenna consisting of multiple antennas arranged in a line and is configured to output multiple digital signals corresponding to each of these multiple antennas, the distribution of the electromagnetic field in the electromagnetic wave heating device can be changed between the states shown in Figures 13A, 13B, and 13C by outputting multiple digital signals so as to change the phase difference between the multiple digital signals corresponding to each of the multiple antennas.

[0094] 14A, 14B, and 14C are schematic diagrams showing the distribution of the electromagnetic field caused by standing waves in an electromagnetic wave heating device formed by digital signals from multiple antennas. As shown in Figures 14A, 14B, and 14C, for example, when the electromagnetic wave heating device has a phased array antenna consisting of multiple antennas arranged in a plane or curved shape and is configured to output multiple digital signals corresponding to each of these multiple antennas, the distribution of the electromagnetic field in the electromagnetic wave heating device can be changed between the states shown in Figures 14A, 14B, and 14C, respectively, by outputting multiple digital signals so as to change the phase difference between the multiple digital signals corresponding to each of the multiple antennas.

[0095] In this way, when an electromagnetic wave heating device has multiple antennas that constitute a linear array antenna or a phased array antenna, by appropriately setting the phases of multiple digital signals corresponding to each of the multiple antennas, it becomes possible to increase the strength of the electromagnetic field in the desired area and selectively heat or concentrate heating the desired area of ​​the heated object M1.

[0096] Embodiment 4 Next, an electromagnetic wave heating system 4 according to embodiment 4 will be described with reference to Fig. 15 and Fig. 16. The electromagnetic wave heating system 4 according to embodiment 4 differs from the electromagnetic wave heating system 3 according to embodiment 3 in the configuration for controlling the electromagnetic wave heating device based on a trained model generated by an electromagnetic wave heating control device based on information acquired from the electromagnetic wave heating device, but the other configurations are similar, and the same names and symbols as those in embodiment 3 will be used and descriptions thereof will be omitted.

[0097] Fig. 15 is a block diagram showing a schematic configuration of an electromagnetic wave heating system 4 according to embodiment 4. As shown in Fig. 15, the electromagnetic wave heating system 4 according to embodiment 4 includes an input / output device 10, an electromagnetic wave heating control device 400, DA converters 21 and 22, amplifiers 31 and 32, tuners 41 and 42, and an electromagnetic wave heating device 800 controlled by the electromagnetic wave heating control device 400, which are electrically connected to each other wirelessly or by wire.

[0098] The electromagnetic wave heating control device 400 includes a temperature information acquisition unit 301, a reception information acquisition unit 202, an amplitude / phase information acquisition unit 403, a signal generation unit 404, a learning unit 405, and a memory unit 106. The electromagnetic wave heating control device 400 is a device for outputting electromagnetic waves toward the electromagnetic wave heating device 800 and controlling the heating of the object to be heated M1 by the electromagnetic wave heating device 800.

[0099] The learning unit 405 learns based on input of training data including a specific amplitude and a specific phase, and a change in temperature of the object to be heated M1 heated for a specific period based on a digital signal having the specific amplitude and the specific phase, and generates a trained model that outputs the amplitude and phase of a digital signal to be generated by the signal generating unit 404 based on input of the temperature detection information acquired by the temperature information acquiring unit 301 and the target value of the temperature when heating the object to be heated M1 acquired by the temperature information acquiring unit 301. For example, the learning unit 405 generates the trained model using a known algorithm such as a convolutional neural network or deep learning.

[0100] For example, before heating the object to be heated M1 using the electromagnetic wave heating device 800, the electromagnetic wave heating control device 400 heats an object to be heated that is identical to the object to be heated M1 or that can be considered to have substantially the same characteristic information as the object to be heated M1 using the electromagnetic wave heating device 800, and generates a trained model in advance using the learning unit 405 based on the amplitude and phase of the digital signal generated by the signal generating unit 404 and the detection results of the temperature of the object to be heated, and stores the generated trained model in the memory unit 106, so that when heating the object to be heated M1 using the electromagnetic wave heating device 800, the trained model stored in the memory unit 106 is read out as appropriate.

[0101] Furthermore, for example, the electromagnetic wave heating control device 400 is configured to generate a trained model using the learning unit 405 based on the amplitude and phase of the digital signal generated by the signal generating unit 404 and the detection results of the temperature of the heated object M1 while heating the heated object M1 using the electromagnetic wave heating device 800, and to output the amplitude and phase when generating a new digital signal to the generated trained model using the signal generating unit 404.

[0102] In this way, when the electromagnetic wave heating control device 400 is configured to generate a trained model while heating the object to be heated M1 using the electromagnetic wave heating device 800, the electromagnetic wave heating control device 400 may use pre-set initial values ​​as the amplitude and phase of the digital signal to be generated by the signal generating unit 404 at the start of heating the object to be heated M1 using the electromagnetic wave heating device 800, or may be configured to output the amplitude and phase to a trained model previously stored in the memory unit 106, and then update the trained model to a new trained model based on the amplitude and phase of the digital signal generated by the signal generating unit 404 and the detection results of the temperature of the object to be heated M1 while heating the object to be heated M1 using the electromagnetic wave heating device 800.

[0103] The information used by the learning unit 405 as training data is not limited to the above, and may include, for example, in addition to the above information, other information related to the conditions for heating the object M1, including one or more pieces of information selected from the received information acquired by the received information acquiring unit 202, the characteristic information of the object M1, and information indicating the humidity and air pressure during heating. Furthermore, the information input to the trained model is not limited to the temperature detection information acquired by the temperature information acquiring unit 301 and the target temperature for heating the object M1, acquired by the temperature information acquiring unit 301, and may include, for example, in addition to these pieces of information, other information related to the conditions for heating the object M1, including one or more pieces of information selected from the received information acquired by the received information acquiring unit 202, the characteristic information of the object M1, and information indicating the humidity and air pressure during heating.

[0104] The amplitude / phase information acquisition unit 403 acquires a plurality of amplitude information and a plurality of phase information for causing the signal generation unit 404 to generate a plurality of digital signals by causing the trained model generated by the training unit 405 to output the amplitude and phase of each of a plurality of digital signals to be generated by the signal generation unit 404 at a specific time.

[0105] The signal generating unit 404 generates a plurality of digital signals corresponding to each of the plurality of antennas of the electromagnetic wave heating device 800, based on the plurality of pieces of amplitude information and the plurality of pieces of phase information acquired by the amplitude / phase information acquiring unit 403. Furthermore, the signal generating unit 404 continuously changes the generated digital signals in accordance with the time change of the amplitude information and phase information acquired by the amplitude / phase information acquiring unit 403. The signal generating unit 404 outputs the generated digital signals to the electromagnetic wave heating device 800. Note that details of the signal generating unit 404 are the same as those of the signal generating unit 304 according to the third embodiment, and therefore description thereof will be omitted.

[0106] The hardware configuration of the electromagnetic wave heating control device 400 according to the fourth embodiment is similar to the hardware configuration of the electromagnetic wave heating control device 100 according to the first embodiment, and therefore a description thereof will be omitted.

[0107] Next, the details of the processing performed by the electromagnetic wave heating control device 400 will be described with reference to Fig. 15 and Fig. 16. Fig. 16 is a flowchart showing an example of the processing performed by the electromagnetic wave heating control device 400 according to embodiment 4. As shown in Fig. 16, the electromagnetic wave heating control device 400 repeats the processing from step ST01 to step ST08, similar to the processing performed by the electromagnetic wave heating control device according to embodiments 1 to 3. Note that part of the processing performed by the electromagnetic wave heating control device 400 according to embodiment 4 is similar to the processing performed by the electromagnetic wave heating control device 300 according to embodiment 3, and therefore, the same processing as in embodiment 3 will be assigned the same reference numerals as in embodiment 3 and will not be described again.

[0108] 16, when the electromagnetic wave heating control device 400 starts processing, it first acquires temperature detection information (step ST01). After performing the processing of step ST01, the electromagnetic wave heating control device 400 acquires reception information (step ST12). After performing the processing of step ST12, the electromagnetic wave heating control device 400 acquires temperature target information (step ST13).

[0109] After performing the process of step ST13, the electromagnetic wave heating control device 400 acquires amplitude information and phase information (step ST24). In this process, the electromagnetic wave heating control device 400 acquires new pieces of amplitude information and new pieces of phase information by setting multiple combinations of amplitudes and phases of multiple digital signals to be generated by the signal generating unit 404 based on the temperature detection information acquired in the process of step ST01, the reception information acquired in the process of step ST12, and the target temperature information acquired in the process of step ST13.

[0110] For example, in the processing of step ST24, the electromagnetic wave heating control device 400 reads out the trained model stored in the storage unit 106 and inputs the temperature detection information acquired in the processing of step ST01 and the target temperature information acquired in the processing of step ST13 into the trained model, thereby causing the signal generation unit 404 to output multiple combinations of amplitude and phase of multiple digital signals to be generated, and setting multiple combinations of amplitude and phase as the output results. Also, for example, in this processing, when the received power indicated by the reception information acquired in the processing of step ST12 reaches a preset threshold, the electromagnetic wave heating control device 400 sets new amplitude and phase of the digital signal to be generated by the signal generation unit 404 so as to reduce the received power.

[0111] After performing the process of step ST24, the electromagnetic wave heating control device 400 generates a first digital signal and a second digital signal (step ST25). After performing the process of step ST25, the electromagnetic wave heating control device 400 outputs the first digital signal and the second digital signal (step ST26).

[0112] After performing the process of step ST26, the electromagnetic wave heating control device 400 generates a trained model (step ST07). In this process, the electromagnetic wave heating control device 400 generates training data by the learning unit 405, which associates a specific amplitude and a specific phase with the temperature change of the object to be heated M1 heated during a specific period based on a digital signal having the specific amplitude and the specific phase, based on specific temperature detection information, specific target temperature information, and multiple amplitude and phase information corresponding to each of the multiple antennas, all acquired during a specific period since the start of heating of the object to be heated M1. By performing training using the training data, the electromagnetic wave heating control device 400 updates the trained model already stored in the storage unit 106 to a new trained model. In this process, the electromagnetic wave heating control device 400 stores the generated new trained model in the storage unit 106.

[0113] After performing the processing of step ST07, the electromagnetic wave heating control device 400 determines whether or not a termination condition, which is a condition for terminating the processing, has been met (step ST08). If the termination condition has not been met in the processing of step ST08 (NO in step ST08), the electromagnetic wave heating control device 400 returns the processing to step ST01. For example, the electromagnetic wave heating control device 400 repeats the processing of steps ST01 to ST08 shown in FIG. 16 at predetermined specific intervals. As a result, the electromagnetic wave heating control device 400 outputs to the electromagnetic wave heating device 800 a plurality of digital signals that dynamically change in response to time changes in the amplitude information and phase information acquired in the processing of step ST24, and generates a trained model for generating new digital signals. If the termination condition has been met in the processing of step ST08 (YES in step ST08), the electromagnetic wave heating control device 400 ends the processing.

[0114] As described above, the electromagnetic wave heating control device 400 according to the fourth embodiment includes a learning unit 405 that learns based on input of training data including a specific amplitude and a specific phase and a change in temperature of an object to be heated over a specific period based on a digital signal having the specific amplitude and specific phase, and generates a trained model that outputs the amplitude and phase of a digital signal to be generated by the signal generating unit 404 based on input of temperature detection information acquired by the temperature information acquiring unit 301 and a target temperature value for heating the object to be heated M1 acquired by the temperature information acquiring unit 301. With this configuration, the electromagnetic wave heating control device 400 can heat the object to be heated M1 using electromagnetic waves having an amplitude and phase that correspond to the change in temperature of the object to be heated M1.

[0115] The electromagnetic wave heating control device 400 according to the fourth embodiment is configured to output a first digital signal corresponding to the first antenna 801 and a second digital signal corresponding to the second antenna 802 to an electromagnetic wave heating device 800 having a first antenna 801 and a second antenna 802, but is not limited to this. The electromagnetic wave heating control device may be configured to output a plurality of digital signals corresponding to each of the plurality of antennas to an electromagnetic wave heating device having a plurality of antennas. For example, the electromagnetic wave heating control device may be configured to output a plurality of digital signals corresponding to each of three or more antennas generated based on the calculation results of the trained model to an electromagnetic wave heating device having three or more antennas.

[0116] In any of the above-mentioned embodiments, the electromagnetic wave heating control device may include some or all of the other components of the electromagnetic wave heating system, or some of the components of the electromagnetic wave heating control device may be provided in another device electrically connected to the electromagnetic wave heating control device, or the electromagnetic wave heating control device may be communicably connected to the other components of the electromagnetic wave heating system via another device, computer, or communication network (not shown). Also, in any of the above-mentioned embodiments, the electromagnetic wave heating system may be integrated as a single device including all the components of each electromagnetic wave heating system, or may include other components (not shown), such as an isolator.

[0117] In addition, the present disclosure allows for free combination of the respective embodiments, modification of any of the components of the respective embodiments, or omission of any of the components of the respective embodiments. [Industrial Applicability]

[0118] The electromagnetic wave heating control device according to the present disclosure can be used to control an electromagnetic wave heating device when heating an object to be heated with electromagnetic waves having a desired amplitude and phase. [Explanation of symbols]

[0119] 1 Electromagnetic wave heating system, 2 Electromagnetic wave heating system, 3 Electromagnetic wave heating system, 4 Electromagnetic wave heating system, 10 Input / output device, 20 DA converter, 21 DA converter, 22 DA converter, 30 Amplifier, 31 Amplifier, 32 Amplifier, 40 Tuner, 41 Tuner, 42 Tuner, 100 Electromagnetic wave heating control device, 100a Processor, 100b Memory, 100c I / O port, 100d Processing circuit, 103 Amplitude and phase information acquisition unit, 104 Signal generation unit, 106 Storage unit, 200 Electromagnetic wave heating control device, 201 Temperature information acquisition unit, 202 Reception information acquisition unit, 203 Amplitude and phase information acquisition unit, 204 Signal generation unit, 300 Electromagnetic wave heating control device, 301 Temperature information acquisition unit, 303 Amplitude and phase information acquisition unit, 304 Signal generation unit, 400 Electromagnetic wave heating control device, 403 Amplitude and phase information acquisition unit, 404 signal generation unit, 405 learning unit, 600 electromagnetic wave heating device, 601 antenna, 700 electromagnetic wave heating device, 703 temperature sensor, 800 electromagnetic wave heating device, 801 first antenna, 802 second antenna, M1 heated object.

Claims

1. an amplitude / phase information acquisition unit that acquires amplitude information indicating the amplitude of the electromagnetic wave and phase information indicating the phase of the electromagnetic wave; a signal generating unit that generates a digital signal that is an electromagnetic wave having an amplitude and a phase indicated by the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit, and outputs the generated digital signal to an electromagnetic wave heating device that heats an object to be heated by electromagnetic waves radiated from a plurality of antennas; a temperature information acquisition unit that acquires temperature detection information indicating a detection result of the temperature of the object to be heated by the electromagnetic wave heating device and temperature target information indicating a target value of the temperature when the object to be heated is heated; A time change in the frequency of the electromagnetic wave input to the electromagnetic wave heating device; a setting value of a tuner that matches the impedance of the signal generating unit with the impedance from the signal generating unit to the object to be heated; Information indicating the humidity and air pressure during heating, Any one or more pieces of information among The time change of the amplitude and phase of the electromagnetic wave input to the electromagnetic wave heating device; A time change in temperature of the object heated for a specific period based on a digital signal corresponding to the time change in amplitude and phase; and It learns based on the input of training data including The temperature detection information acquired by the temperature information acquisition unit, and A target value of the temperature when heating the object to be heated, which is indicated by the target temperature information acquired by the temperature information acquisition unit. a learning unit that generates a trained model that outputs the amplitude and phase of a digital signal to be generated by the signal generating unit based on the input of the amplitude / phase information acquisition unit acquires the amplitude information and the phase information based on the amplitude and phase of the digital signal output by the trained model every time the temperature detection information is acquired by the temperature information acquisition unit at each specific period; the signal generating unit continuously changes the generated digital signal in accordance with time changes in the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit; The signal generating unit generates a plurality of digital signals having different amplitudes and phases from one another, based on the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit, so that the phase changes for each step corresponding to the predetermined specific period of 100 picoseconds or more and 100 seconds or less, and irradiates, from each of the plurality of antennas, an electromagnetic wave based on a corresponding one of the generated digital signals. An electromagnetic wave heating control device characterized by:

2. Further, a reception information acquisition unit is provided to acquire reception information relating to the magnitude of the reception wave received in the electromagnetic wave heating device, The teacher data further includes reception information regarding the magnitude of the received wave received in the electromagnetic wave heating device, The trained model is the temperature detection information acquired by the temperature information acquisition unit; A target value of the temperature when heating the object to be heated, which is indicated by the temperature target information acquired by the temperature information acquisition unit; and Based on input of reception information regarding the magnitude of the received wave received in the electromagnetic wave heating device, a trained model that outputs the amplitude and phase of a digital signal to be generated by the signal generator; 2. The electromagnetic wave heating control device according to claim 1.

3. Computer, an amplitude / phase information acquisition unit that acquires amplitude information indicating the amplitude of the electromagnetic wave and phase information indicating the phase of the electromagnetic wave; a signal generating unit that generates a digital signal that is an electromagnetic wave having an amplitude and a phase indicated by the amplitude information and phase information acquired by the amplitude / phase information acquiring unit, and outputs the generated digital signal to an electromagnetic wave heating device that heats an object to be heated by electromagnetic waves radiated from a plurality of antennas; Temperature detection information indicating a detection result of the temperature of the object to be heated by the electromagnetic wave heating device; Temperature target information indicating a target value of the temperature when heating the object to be heated; a temperature information acquisition unit that acquires the temperature information; A time change in the frequency of the electromagnetic wave input to the electromagnetic wave heating device; a setting value of a tuner that matches the impedance of the signal generating unit with the impedance from the signal generating unit to the object to be heated; Information showing humidity and atmospheric pressure during heating Any one or more pieces of information among The time change of the amplitude and phase of the electromagnetic wave input to the electromagnetic wave heating device; A time change in temperature of the object heated for a specific period based on a digital signal corresponding to the time change in amplitude and phase; and It learns based on the input of training data including The temperature detection information acquired by the temperature information acquisition unit, and A target value of the temperature when heating the object to be heated, which is indicated by the target temperature information acquired by the temperature information acquisition unit. a learning unit that generates a learned model that outputs the amplitude and phase of a digital signal to be generated by the signal generating unit based on the input of It functions as the amplitude / phase information acquisition unit acquires the amplitude information and the phase information based on the amplitude and phase of the digital signal output by the trained model every time the temperature detection information is acquired by the temperature information acquisition unit at each specific period; the signal generating unit continuously changes the generated digital signal in accordance with time changes in the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit; The signal generating unit generates a plurality of digital signals having different amplitudes and phases from one another, based on the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit, so that the phase changes for each step corresponding to the predetermined specific period of 100 picoseconds or more and 100 seconds or less, and irradiates, from each of the plurality of antennas, an electromagnetic wave based on a corresponding one of the generated digital signals. A program characterized by:

4. An electromagnetic wave heating control method performed by an apparatus including an amplitude and phase information acquisition unit, a signal generation unit, a temperature information acquisition unit, and a learning unit, the amplitude / phase information acquiring unit acquiring amplitude information indicating the amplitude of an electromagnetic wave and phase information indicating the phase of the electromagnetic wave; a step in which the signal generation unit generates a digital signal that is an electromagnetic wave having an amplitude and a phase indicated by the amplitude information and the phase information acquired by the amplitude / phase information acquisition unit; a step in which the signal generating unit outputs the generated digital signal to an electromagnetic wave heating device that heats an object to be heated by electromagnetic waves radiated from a plurality of antennas; The temperature information acquisition unit Temperature detection information indicating the detection result of the temperature of the object to be heated by the electromagnetic wave heating device; and temperature target information indicating a target value of the temperature when heating the object to be heated; obtaining a The learning unit: A time change in the frequency of the electromagnetic wave input to the electromagnetic wave heating device; a setting value of a tuner that matches the impedance of the signal generating unit with the impedance from the signal generating unit to the object to be heated; Information showing humidity and atmospheric pressure during heating Any one or more pieces of information among The time change of the amplitude and phase of the electromagnetic wave input to the electromagnetic wave heating device; A time change in temperature of the object heated for a specific period based on a digital signal corresponding to the time change in amplitude and phase; and It learns based on the input of training data including The temperature detection information acquired by the temperature information acquisition unit, and Input of a target temperature value when heating the object to be heated, which is indicated by the target temperature information acquired by the temperature information acquisition unit. Based on generating a trained model that outputs the amplitude and phase of the digital signal to be generated by the signal generator; the amplitude / phase information acquisition unit acquires the amplitude information and the phase information based on the amplitude and phase of the digital signal output by the trained model every time the temperature detection information is acquired by the temperature information acquisition unit at each specific period; the signal generating unit continuously changes the generated digital signal in accordance with time changes in the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit; The signal generating unit generates a plurality of digital signals having different amplitudes and phases from one another, based on the amplitude information and the phase information acquired by the amplitude / phase information acquiring unit, so that the phase changes for each step corresponding to the predetermined specific period of 100 picoseconds or more and 100 seconds or less, and irradiates, from each of the plurality of antennas, an electromagnetic wave based on a corresponding one of the generated digital signals. Electromagnetic wave heating control method.

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