CN114844516B - Frequency adaptive control method, system, magnetic therapy equipment and readable storage medium - Google Patents
Frequency adaptive control method, system, magnetic therapy equipment and readable storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/103—Reflected power, e.g. return loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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Abstract
The invention discloses a frequency self-adaptive control method, which comprises the following steps: receiving input initial parameters; outputting an initial radio frequency signal to a load coil according to the initial parameters; acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal; and adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state. The invention also discloses a frequency self-adaptive control system, magnetic therapy equipment and a readable storage medium. By applying the frequency self-adaptive control method of the invention to magnetic therapy equipment, the signal power output of the load coil can be greatly enhanced, and the radio frequency radiation effect on the bone tissue lesion part can be improved.
Description
Technical Field
The invention relates to the field of orthopaedics electromagnetic field physical therapy, in particular to a frequency self-adaptive control method, a frequency self-adaptive control system, magnetic therapy equipment and a readable storage medium.
Background
The fracture is a condition causing bone loss, and because the fracture treatment time is long, in the fracture treatment process, steel plates, intramedullary nails, internal and external fixtures, long splints, gypsum and the like are often used at fracture parts, so that the exercise function is greatly influenced, muscle atrophy, dysfunction and joint stiffness are caused, and the side effects and toxic effects of oral traditional Chinese and western medicine medicines are caused, so that the effect of organ damage is caused, such as the damage of stomach, spleen, liver and kidney, the pain and economic burden of a patient are increased due to iatrogenic infection, and the psychological stress of the patient is also greatly increased, so that the healing speed of bone injury of the patient is influenced. There are many current methods for dealing with bone loss caused by fracture, one of which is electromagnetic therapy. The use of pulsed electromagnetic fields for treating bone fractures has been known for many years. The pulsed electromagnetic field is approved by the FDA in 1979 to be used for the adjuvant treatment of clinical skeletal diseases such as osteoporosis, osteoarthritis and the like, and has been widely accepted by the medical community at home and abroad. Pulsed electromagnetic fields and ultrasonic shock wave treatment are currently known to be the more effective physical treatment of fractures as specified in the fracture physical treatment guidelines issued by the american society of orthopedics. Therefore, the method for promoting the fracture healing by the pulse electromagnetic field is applied to the clinic in China, america, italy, the Netherlands, singapore and other countries, and better treatment and rehabilitation effects are obtained. However, the traditional dynamic electromagnetic field bone therapeutic apparatus has a single structure, can not carry out matching treatment according to the bone loss caused by fracture, and the load coil generating the dynamic magnetic field can only be matched with the fixed frequency from the power amplifier, so that the condition that the power of the load coil is lost due to incomplete power matching can occur in most cases, and the therapeutic effect is further affected.
Disclosure of Invention
The invention provides a frequency self-adaptive control method, a frequency self-adaptive control system, magnetic therapy equipment and a readable storage medium, and aims to solve the technical problem of signal power loss of a load coil.
In order to achieve the above object, the present invention provides a frequency adaptive control method, comprising the steps of:
Receiving input initial parameters;
outputting an initial radio frequency signal to a load coil according to the initial parameters;
Acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal;
And adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state.
Optionally, the initial parameters include: the method comprises the steps of initial radio frequency signal frequency, preset sweep frequency bandwidth and preset sweep frequency point number; the step of outputting an initial radio frequency signal to the load coil according to the initial parameters comprises the following steps:
dividing the preset frequency sweep bandwidth into signal frequency bands with the same number as the preset frequency sweep points according to the preset frequency sweep points;
coarsely scanning the signal frequency band by taking the initial radio frequency signal frequency as a center to obtain an initial radio frequency signal;
and outputting the initial radio frequency signal to a load coil.
Optionally, the step of adjusting the initial parameter to make the initial radio frequency signal and the frequency of the load coil in a resonance state according to the reflected signal includes:
Determining a target reflected signal with the minimum voltage value in the reflected signals;
And adjusting the initial parameters according to the target reflected signals so as to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state.
Optionally, the step of determining the target reflected signal with the smallest voltage value in the reflected signals includes:
acquiring voltage values of all signals in the reflected signals;
And comparing the voltage values of the signals to determine the signal with the minimum voltage value in the reflected signals, and taking the signal with the minimum voltage value as a target reflected signal.
Optionally, the step of adjusting the initial parameter to make the frequency of the initial radio frequency signal and the load coil in a resonance state according to the target reflected signal includes:
determining a target radio frequency signal in the initial radio frequency signal according to the target reflected signal;
determining a target radio frequency signal frequency corresponding to the target radio frequency signal;
And taking the frequency of the target radio frequency signal as the initial parameter, and outputting the initial radio frequency signal to the load coil according to the initial parameter so as to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state.
Optionally, the step of determining a target radio frequency signal in the initial radio frequency signal according to the target reflected signal includes:
determining a target signal frequency band corresponding to the target reflected signal according to the target reflected signal;
and carrying out fine scanning on the target signal frequency band so as to determine a target radio frequency signal in the initial radio frequency signal.
Optionally, the step of performing fine scanning on the target signal frequency band to determine a target radio frequency signal in the initial radio frequency signal includes:
And carrying out fine scanning on the target signal frequency band, and determining a target radio frequency signal in the initial radio frequency signal according to a signal monotonicity rule.
In addition, to achieve the above object, the present invention also provides a frequency adaptive control system, including:
The parameter input module is used for receiving input initial parameters;
The signal generation module is used for outputting an initial radio frequency signal to the load coil according to the initial parameter;
The signal monitoring module is used for acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal;
and the parameter adjustment module is used for adjusting the initial parameters according to the reflected signals so as to enable the frequencies of the initial radio frequency signals and the load coil to be in a resonance state.
In addition, in order to achieve the above object, the present invention also provides a magnetic therapy apparatus including a memory, a processor, and a frequency adaptive control program stored on the memory and executable on the processor, wherein: the frequency adaptive control program, when executed by the processor, implements the steps of the frequency adaptive control method as described above.
In addition, in order to achieve the above object, the present invention also provides a readable storage medium having stored thereon a frequency adaptive control program which, when executed by a processor, implements the steps of the frequency adaptive control method as described above.
According to the frequency self-adaptive control method, through the steps of receiving the input initial parameters and outputting the initial radio frequency signals to the load coil according to the initial parameters, the signal generation module can send out ideal regular radio frequency signals corresponding to the parameters according to the input parameters, and through the step of acquiring the reflected signals fed back by the load coil based on the initial radio frequency signals, the reflected signals fed back by the load coil can be monitored and acquired in real time. The step of adjusting the initial parameters according to the reflected signals to enable the initial radio frequency signals and the frequencies of the load coils to be in a resonance state can enable the signal generation module to dynamically and automatically adaptively match the frequencies of the load coils, so that the frequencies of the radio frequency signals sent by the signal generation module and the frequencies of the load coils are always in a resonance state, the signal power output of the load coils can be greatly enhanced, and the radio frequency radiation effect on bone tissue lesion sites is improved.
Drawings
FIG. 1 is a schematic diagram of a terminal structure of a hardware operating environment of a magnetotherapeutic device according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of a frequency adaptive control method according to the present invention;
Fig. 3 is a schematic diagram of an example of a frequency adaptive control apparatus according to a first embodiment of the frequency adaptive control method of the present invention;
fig. 4 is a diagram of a core framework of the frequency adaptive control system according to the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a terminal structure of a hardware operating environment of a magnetic therapy device according to an embodiment of the present invention.
As shown in fig. 1, the magnetic therapy apparatus may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a control panel, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a 5G interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above. A frequency adaptive control program may be included in the memory 1005 as a computer storage medium.
Optionally, the magnetic therapy device may further include a microphone, a speaker, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a wireless module, and the like.
It will be appreciated by those skilled in the art that the terminal structure shown in fig. 1 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the frequency adaptive control method according to the present invention, where the method includes:
Step S10, receiving input initial parameters;
Before receiving the initial parameters input by the related personnel, the natural frequency of the load coil needs to be acquired, and part of parameters taking the natural frequency of the load coil as the initial parameters are manually input by the related personnel or automatically input to a parameter input module in the frequency adaptive control system after the natural frequency of the load coil is acquired by the frequency adaptive control system.
The initial parameters at least comprise an initial radio frequency signal frequency, a preset sweep frequency bandwidth and a preset sweep frequency point number, wherein the initial radio frequency signal frequency is equal to the natural frequency of the load coil. The natural frequency of the load coil is a theoretical frequency of the load coil obtained by calculation according to coil parameters such as the shape, winding form, and number of strands of the coil.
The coil parameters determine the signal frequency of the load coil, the actual frequency of the load coil after processing will have a certain difference from the theoretical frequency in the coil simulation calculation, and meanwhile, there will be a difference in the practical application environment. This is the root cause of the large loss of signal power from the load coil when the radio frequency signal from the signal generating module according to the theoretical frequency of the load coil is transmitted to the load coil.
On the one hand, the load coil can be continuously improved and designed according to the specificity of the surface and the structure acted on by the load coil, so that after the novel load coil is replaced by the traditional dynamic magnetic field generating device, the frequency signal generated by the signal generating module in the traditional dynamic magnetic field generating device is a fixed frequency signal (theoretical frequency of the load coil), and therefore the frequency of the signal transmitted by the signal generating module and the frequency of the load coil possibly cannot be completely matched, and further the signal power of the load coil is further lost.
On the other hand, even if a new load coil is not replaced, the signal frequency of the load coil is very easy to be influenced by other conditions such as external magnetic field environment, so that the signal frequency of the load coil is always in a fluctuating state, which results in that the loss of the signal power of the load coil is difficult to avoid, and therefore, the invention needs to provide a method and a corresponding device for automatically adapting to the signal frequency of the load coil.
Step S20, outputting an initial radio frequency signal to a load coil according to the initial parameters;
specifically, the step S20 includes:
step a, dividing the preset frequency sweep bandwidth into signal frequency bands with the same number as the preset frequency sweep points according to the preset frequency sweep points;
step b, coarsely scanning the signal frequency band by taking the initial radio frequency signal frequency as a center to obtain an initial radio frequency signal;
and c, outputting the initial radio frequency signal to a load coil.
It should be noted that the preset frequency sweep bandwidth and the preset frequency sweep point number can be set and input according to actual needs. The preferred ranges for the initial parameters are:
the frequency range of the initial radio frequency signal frequency is as follows: 0.1 Hz-3 GHz;
the preset sweep frequency bandwidth range is as follows: 0.1 Hz-1 GHz;
The range of the preset frequency sweep points is as follows: 1 to 10000.
In the preset frequency sweep bandwidth range, firstly dividing the frequency sweep bandwidth into signal frequency bands with the same number as the frequency sweep point number according to the frequency sweep point number, then carrying out left and right frequency sweep in the preset frequency sweep bandwidth range by taking the frequency of an initial radio frequency signal (the theoretical frequency of a load coil) as the center frequency, and outputting discontinuous frequency ranges in the left and right frequency sweep process: the initial radio frequency signals of 0.1 Hz-3 GHz are specifically taken as boundaries by taking the boundary points of each segment of adjacent signal frequency bands after segmentation, and the output of the initial radio frequency signals is not output or interrupted within a short time preset on the boundaries, so that discontinuous initial radio frequency signals can be output and intuitively presented to distinguish different signal frequency bands, and the judgment of the signal frequency band of the initial radio frequency signals corresponding to the signal voltage reflected by the load coil is facilitated. And finally, transmitting the initial radio frequency signal to a load coil.
In one embodiment, the step S30 includes:
Step d, determining a target reflected signal with the minimum voltage value in the reflected signals;
And e, adjusting the initial parameters according to the target reflected signals so as to enable the initial radio frequency signals and the frequencies of the load coil to be in a resonance state.
In this embodiment, since the initial rf signal corresponds to a certain frequency range, the reflected signal fed back based on the initial rf signal also corresponds to a certain frequency range, i.e. the reflected signal here is not a fixed frequency signal. But rather a collection of individual signals of a certain frequency range.
The voltage value of each frequency signal in the reflected signals can be monitored in real time through the signal monitoring module, and the voltage value of each signal in the reflected signal set is compared in value, so that the target reflected signal with the minimum voltage value in the reflected signals is determined.
Specifically, the step of determining the target reflected signal with the smallest voltage value in the reflected signals includes:
acquiring voltage values of all signals in the reflected signals;
And comparing the voltage values of the signals to determine the signal with the minimum voltage value in the reflected signals, and taking the signal with the minimum voltage value as a target reflected signal.
Because the reflected power and the monitored voltage value of the reflected signal are in positive correlation, a fitting relation of the reflected power and the monitored voltage value of the reflected signal is obtained through a certain algorithm, and the target reflected signal with the minimum voltage value in the reflected signal is determined, so that the load coil can maximally absorb all signal power of the initial radio frequency signal, namely, the frequency of the load coil and the frequency of the initial radio frequency signal are in a resonance state.
In this embodiment, by determining the target reflected signal with the smallest voltage value in the reflected signal, it is able to efficiently and cost-effectively determine whether the initial rf signal and the frequency of the load coil are in a resonant state, and further adjust the initial parameters to achieve adaptively fixing the initial rf signal at the same frequency as the frequency of the load coil, thereby minimizing the loss of the output power of the load coil.
Step S30, obtaining a reflected signal fed back by the load coil based on the initial radio frequency signal;
When the initial rf signal reaches the load coil, the load coil generates a dynamic magnetic field, and in general, the load coil cannot fully absorb the initial rf signal, and because the frequency of the signal of the load coil or the frequency of the generated dynamic magnetic field is often inconsistent with the frequency of the initial rf signal, part of the rf signal, that is, the reflected signal, is reflected.
And step S40, adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequencies of the load coils to be in a resonance state.
The target reflection signal with the minimum voltage value in the reflection signal is determined, so that the output frequency corresponding to the initial radio frequency signal generating the reflection signal is determined after tracing, the output frequency is used as a new initial parameter, and the initial parameter is maintained, so that the frequencies of the initial radio frequency signal and the load coil are in a resonance state, and the equal matching of the frequency of the initial radio frequency signal and the frequency of the load coil is realized.
For a more intuitive understanding of the present embodiment, a specific description will be made with reference to fig. 3, and fig. 3 is a schematic diagram of an example of the structure of a frequency adaptive control apparatus according to a first embodiment of the frequency adaptive control method of the present invention.
As shown in fig. 3, the frequency adaptive control device may include a signal generating module, a power amplifying module, a signal coupling module, a load terminal, a signal monitoring module, and a parameter input module, wherein the load terminal includes a load coil.
The method comprises the steps that firstly, relevant personnel input initial parameters in a parameter input module according to theoretical frequency obtained through calculation of a load coil, then the initial parameters are transmitted to a signal generation module, the signal generation module outputs initial radio frequency signals for a frequency self-adaptive control system according to the initial parameters, and the output initial radio frequency signals are directly transmitted to a power amplification module. And after amplifying the power of the initial radio frequency signal by the power amplifying module, transmitting the amplified initial radio frequency signal to the signal coupling module, transmitting the initial radio frequency signal processed by the signal coupling module to a coil winding (load coil) in a load end, wherein the load coil reflects the signal according to the initial radio frequency signal, the reflected signal is transmitted to the signal monitoring module through an isolation end of the signal coupling module, the voltage value of each signal in the reflected signal is monitored by the signal monitoring module, the signal monitoring module is also used for monitoring the initial radio frequency signal output by the signal generating module, and finally, the initial parameters in the parameter input module are adjusted according to the voltage value result monitored by the signal monitoring module.
Specifically, the frequency of the output radio frequency signal is controlled by the parameter input module according to the voltage information collected by the signal monitoring module, so that the frequency of the output signal of the radio frequency signal generating module is consistent with the frequency of the load end (receiving coil);
Specifically, the power amplification module performs power amplification on the initial radio frequency signal generated by the signal generation module according to a preset multiplying power, wherein the preset multiplying power is set according to actual needs;
The load coil in the load end is subjected to frequency matching with an initial radio frequency signal output by the signal coupler, and if the load coil is in a non-resonance state, the load coil of the load end can reflect unabsorbed signal power to the signal coupling module;
The parameter input module is used for setting parameters of the radio frequency signal generation module, receiving voltage data from the signal monitoring module and specifically adjusting signal output frequency of the radio frequency signal generation module.
According to the frequency self-adaptive control method, through the steps of receiving the input initial parameters and outputting the initial radio frequency signals to the load coil according to the initial parameters, the signal generation module can send out ideal regular radio frequency signals corresponding to the parameters according to the input parameters, and through the step of acquiring the reflected signals fed back by the load coil based on the initial radio frequency signals, the reflected signals fed back by the load coil can be monitored and acquired in real time. The step of adjusting the initial parameters according to the reflected signals to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state can enable the signal generation module to dynamically and automatically adaptively match the frequency of the load coil, so that the frequency of the radio frequency signals sent by the signal generation module and the frequency of the load coil are always in a resonance state, the signal power output of the load coil can be greatly enhanced, and the radio frequency radiation effect on bone tissue lesion sites is improved.
Further, a second embodiment of the frequency adaptive control method according to the present invention is provided based on the first embodiment of the frequency adaptive control method according to the present invention, in this embodiment, the step of adjusting the initial parameter according to the target reflection signal to make the initial radio frequency signal and the frequency of the load coil in a resonance state includes:
Step g, determining a target radio frequency signal in the initial radio frequency signal according to the target reflection signal;
Step h, determining the frequency of the target radio frequency signal corresponding to the target radio frequency signal;
And i, taking the frequency of the target radio frequency signal as the initial parameter, and outputting the initial radio frequency signal to the load coil according to the initial parameter so as to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state.
Because each frequency signal in the reflected signals has a corresponding initial radio frequency signal, the corresponding initial radio frequency signal, namely the target radio frequency signal in the plurality of initial radio frequency signals, can be further determined through the target reflected signals, the signal frequency corresponding to the target radio frequency signal is further obtained, the signal frequency is used as a new initial parameter to replace the original initial parameter to output the initial radio frequency signal, when the initial radio frequency signal and the frequency of the load coil are in a non-resonance state, the initial radio frequency signal is output again according to the initial parameter which is unchanged in the first embodiment, and the frequency of the load coil can be adaptively matched again.
In one embodiment, the step of determining a target radio frequency signal in the initial radio frequency signal according to the reflected signal includes:
step j, determining a target signal frequency band corresponding to the target reflected signal according to the target reflected signal;
And step k, performing fine scanning on the target signal frequency band to determine a target radio frequency signal in the initial radio frequency signals.
In this embodiment and the previous embodiment, the reflected signal includes the target reflected signal with the smallest voltage value, because the reflected signal is coarse scanning, the target reflected signal with the smallest voltage value cannot be completely determined theoretically, and the target radio frequency signal corresponding to the target reflected signal with the smallest voltage value and the frequency of the target radio frequency signal cannot be directly determined, however, in the above embodiment, the sectional frequency of the target reflected signal can be determined, and thus the target signal frequency band of the target radio frequency signal can be determined, in the sectional scanning process, the efficiency of positioning the target signal frequency band of the target radio frequency signal can be rapidly improved by a dichotomy, after the target signal frequency band is determined, the target radio frequency signal can be found from the target signal frequency band, and the frequency of the target radio frequency signal is the actual frequency of the load coil, so that the frequency self-adaption is realized, and further the loss of the signal power of the load coil is reduced, that is, the loss of the intensity of the dynamic magnetic field generated by the load coil is greatly reduced, and the radio frequency radiation effect on the bone tissue lesion site is ensured.
In an embodiment, the step of performing fine scanning on the target signal frequency band to determine a target radio frequency signal in the initial radio frequency signal includes:
And step l, performing fine scanning on the target signal frequency band, and determining a target radio frequency signal in the initial radio frequency signal according to a signal monotonicity rule.
Specifically, fine scanning is performed in a target signal frequency band, monotonicity of initial radio frequency signals in the target signal frequency band is judged, and if some initial radio frequency signals have monotonicity, the frequency of the initial radio frequency signals is not a frequency point for minimizing power signal reflection of a load coil; if the initial radio frequency signal of a certain frequency has no monotonicity, the frequency is indicated to be a frequency point which minimizes the reflection of the power signal of the load coil, so that the initial radio frequency signal of the frequency is determined as a target radio frequency signal in the initial radio frequency signals.
As shown in fig. 4, fig. 4 is a core frame structure diagram of the frequency adaptive control system according to the present invention. The invention also provides a frequency self-adaptive control system, which comprises:
a parameter input module a10, configured to receive an input initial parameter;
The signal generation module A20 is used for outputting an initial radio frequency signal to the load coil according to the initial parameter;
the signal monitoring module A30 is used for acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal;
and the parameter adjustment module A40 is used for adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequencies of the load coils to be in a resonance state.
Optionally, the signal generating module a20 is further configured to:
dividing the preset frequency sweep bandwidth into signal frequency bands with the same number as the preset frequency sweep points according to the preset frequency sweep points;
coarsely scanning the signal frequency band by taking the initial radio frequency signal frequency as a center to obtain an initial radio frequency signal;
and outputting the initial radio frequency signal to a load coil.
Optionally, the signal monitoring module a30 is further configured to:
Determining a target reflected signal with the minimum voltage value in the reflected signals;
And adjusting the initial parameters according to the target reflected signals so as to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state.
Optionally, the signal monitoring module a30 is further configured to:
acquiring voltage values of all signals in the reflected signals;
And comparing the voltage values of the signals to determine the signal with the minimum voltage value in the reflected signals, and taking the signal with the minimum voltage value as a target reflected signal.
Optionally, the signal monitoring module a30 is further configured to:
determining a target radio frequency signal in the initial radio frequency signal according to the target reflected signal;
determining a target radio frequency signal frequency corresponding to the target radio frequency signal;
And taking the frequency of the target radio frequency signal as the initial parameter, and outputting the initial radio frequency signal to a load coil according to the initial parameter so as to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state.
Optionally, the signal monitoring module a30 is further configured to:
determining a target signal frequency band corresponding to the target reflected signal according to the target reflected signal;
and carrying out fine scanning on the target signal frequency band so as to determine a target radio frequency signal in the initial radio frequency signal.
Optionally, the signal monitoring module a30 is further configured to:
And carrying out fine scanning on the target signal frequency band, and determining a target radio frequency signal in the initial radio frequency signal according to a signal monotonicity rule.
The specific implementation manner of the frequency adaptive control system of the present invention is basically the same as that of each embodiment of the frequency adaptive control method, and will not be described herein.
In addition, the invention also provides a magnetic therapy device, which comprises a memory, a processor and a frequency adaptive control program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the frequency adaptive control method according to the embodiment when executing the frequency adaptive control program.
The specific implementation manner of the magnetic therapy device is basically the same as that of each embodiment of the frequency self-adaptive control method, and is not repeated here.
Furthermore, the present invention also proposes a readable storage medium, which may be a computer readable storage medium, including a frequency adaptive control program, which when executed by a processor, implements the steps of the frequency adaptive control method according to the above embodiments.
The specific implementation manner of the readable storage medium of the present invention is basically the same as that of each embodiment of the frequency adaptive control method, and will not be repeated here.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a television, a mobile phone, a computer, a load device, a car set, or a network device, etc.) to perform the method according to the embodiments of the present invention.
In the present invention, the terms "first", "second", "third", "fourth", "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the specific meaning of the above terms in the present invention will be understood by those of ordinary skill in the art depending on the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, the scope of the present invention is not limited thereto, and it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and substitutions of the above embodiments may be made by those skilled in the art within the scope of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. A frequency adaptive control method, characterized in that the frequency adaptive control method comprises the steps of:
Receiving input initial parameters;
outputting an initial radio frequency signal to a load coil according to the initial parameters;
Acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal;
Adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequency of the load coil to be in a resonance state, wherein the initial parameters comprise: the method comprises the steps of initial radio frequency signal frequency, preset sweep frequency bandwidth and preset sweep frequency point number; the step of outputting an initial radio frequency signal to the load coil according to the initial parameters comprises the following steps:
dividing the preset frequency sweep bandwidth into signal frequency bands with the same number as the preset frequency sweep points according to the preset frequency sweep points;
coarsely scanning the signal frequency band by taking the initial radio frequency signal frequency as a center to obtain an initial radio frequency signal;
Outputting the initial radio frequency signal to a load coil, wherein the step of adjusting the initial parameter according to the reflected signal to make the frequencies of the initial radio frequency signal and the load coil in a resonance state comprises the following steps:
Determining a target reflected signal with the minimum voltage value in the reflected signals;
Adjusting the initial parameter according to the target reflected signal to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state, wherein the step of adjusting the initial parameter according to the reflected signal to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state comprises the following steps:
After the initial radio frequency signal is subjected to power amplification and coupling treatment according to a preset multiplying power, the initial radio frequency signal is subjected to frequency matching with the load coil, so that the frequencies of the initial radio frequency signal and the load coil are in a resonance state;
And if the frequencies of the initial radio frequency signal and the load coil are in a non-resonance state, regulating the load coil to reflect the signal power which is not absorbed, so as to obtain a reflected signal.
2. The frequency adaptive control method of claim 1, wherein the step of determining a target reflected signal having a smallest voltage value among the reflected signals comprises:
acquiring voltage values of all signals in the reflected signals;
And comparing the voltage values of the signals to determine the signal with the minimum voltage value in the reflected signals, and taking the signal with the minimum voltage value as a target reflected signal.
3. The frequency adaptive control method of claim 2, wherein the step of adjusting the initial parameter to bring the initial radio frequency signal and the frequency of the load coil into a resonance state according to the target reflected signal comprises:
determining a target radio frequency signal in the initial radio frequency signal according to the target reflected signal;
determining a target radio frequency signal frequency corresponding to the target radio frequency signal;
And taking the frequency of the target radio frequency signal as the initial parameter, and outputting the initial radio frequency signal to the load coil according to the initial parameter so as to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state.
4. The method of frequency adaptive control according to claim 3, wherein the step of determining a target radio frequency signal from the initial radio frequency signals based on the target reflected signal comprises:
determining a target signal frequency band corresponding to the target reflected signal according to the target reflected signal;
and carrying out fine scanning on the target signal frequency band so as to determine a target radio frequency signal in the initial radio frequency signal.
5. The method of frequency adaptive control according to claim 4, wherein the step of performing fine scanning in the target signal band to determine a target radio frequency signal in the initial radio frequency signal comprises:
And carrying out fine scanning on the target signal frequency band, and determining a target radio frequency signal in the initial radio frequency signal according to a signal monotonicity rule.
6. A frequency adaptive control system, the frequency adaptive control system comprising:
The parameter input module is used for receiving input initial parameters;
The signal generation module is used for outputting an initial radio frequency signal to the load coil according to the initial parameter;
The signal monitoring module is used for acquiring a reflected signal fed back by the load coil based on the initial radio frequency signal;
And the parameter adjustment module is used for adjusting the initial parameters according to the reflected signals so as to enable the initial radio frequency signals and the frequencies of the load coils to be in a resonance state, wherein the initial parameters comprise: the method comprises the steps of initial radio frequency signal frequency, preset sweep frequency bandwidth and preset sweep frequency point number; the step of outputting an initial radio frequency signal to the load coil according to the initial parameters comprises the following steps:
dividing the preset frequency sweep bandwidth into signal frequency bands with the same number as the preset frequency sweep points according to the preset frequency sweep points;
coarsely scanning the signal frequency band by taking the initial radio frequency signal frequency as a center to obtain an initial radio frequency signal;
Outputting the initial radio frequency signal to a load coil, wherein the step of adjusting the initial parameter according to the reflected signal to make the frequencies of the initial radio frequency signal and the load coil in a resonance state comprises the following steps:
Determining a target reflected signal with the minimum voltage value in the reflected signals;
Adjusting the initial parameter according to the target reflected signal to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state, wherein the step of adjusting the initial parameter according to the reflected signal to enable the frequencies of the initial radio frequency signal and the load coil to be in a resonance state comprises the following steps:
After the initial radio frequency signal is subjected to power amplification and coupling treatment according to a preset multiplying power, the initial radio frequency signal is subjected to frequency matching with the load coil, so that the frequencies of the initial radio frequency signal and the load coil are in a resonance state;
And if the frequencies of the initial radio frequency signal and the load coil are in a non-resonance state, regulating the load coil to reflect the signal power which is not absorbed, so as to obtain a reflected signal.
7. A magnetic therapy apparatus comprising a memory, a processor, and a frequency adaptive control program stored on the memory and operable on the processor, wherein: the frequency adaptive control program, when executed by the processor, implements the steps of the frequency adaptive control method according to any one of claims 1 to 5.
8. A readable storage medium, characterized in that the readable storage medium has stored thereon a frequency adaptive control program, which when executed by a processor, implements the steps of the frequency adaptive control method according to any one of claims 1 to 5.
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| CN202210326911.8A CN114844516B (en) | 2022-03-30 | 2022-03-30 | Frequency adaptive control method, system, magnetic therapy equipment and readable storage medium |
| PCT/CN2023/084073 WO2023185733A1 (en) | 2022-03-30 | 2023-03-27 | Dynamic magnetic field control method and apparatus, computer-readable storage medium and magnetic therapy device |
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