Magnetic field visualization device and physiotherapy apparatus

Abstract

The embodiment of the application provides a magnetic field visualization device and a physiotherapy equipment, relates to the technical field of massage instruments, and the magnetic field visualization device comprises a magnetic field sensor, a processor and a display module, the magnetic field sensor and the display module are connected with the processor, wherein the magnetic field sensor is used for acquiring motion parameters, and the motion parameters are used for representing magnetic field state information of an alternating magnetic field; the processor is used for receiving the motion parameters and generating display control instructions based on the motion parameters; and the display module is used for receiving the display control instructions and visually displaying the magnetic field state information according to the display control instructions. According to the embodiment of the application, the magnetic field state information of the alternating magnetic field is converted into motion parameters by the magnetic field sensor, and then the motion parameters are converted into display control instructions by the processor for visualization, so that the magnetic field information of the alternating magnetic field can be directly observed through the display module, and the application scenarios of the magnetic physiotherapy related equipment can be expanded.

Description

Technical Field

[0001] This application relates to the field of massage device technology, and more particularly to magnetic field visualization devices and physiotherapy equipment. Background Technology

[0002] With the ever-accelerating pace of modern life, people are facing increasing pressure from all aspects of life, work, and study. Intensifying industry competition and a fast-paced lifestyle are constantly impacting and threatening people's physical and mental health, leading to a growing number of people experiencing sleep disorders or physical pain, requiring the use of physiotherapy equipment. Magnetic therapy equipment is currently gaining popularity. Magnetic therapy equipment typically includes a control unit and a magnetic therapy unit. The control unit adjusts various parameters of the magnetic therapy unit to suit individual needs.

[0003] In related technologies, magnetic therapy devices are mostly imperceptible during operation. It is difficult for users to intuitively see the changes in the magnetic field after adjusting the parameters of the magnetic therapy device, and they may not even know whether the magnetic therapy device actually produces an effective magnetic field, which limits the application scenarios of magnetic therapy devices. Summary of the Invention

[0004] This application aims to at least address one of the technical problems existing in the prior art. To this end, embodiments of this application propose a magnetic field visualization device and physiotherapy equipment to visualize magnetic fields and expand the application scenarios of magnetic physiotherapy-related equipment.

[0005] To achieve the above objectives, a first aspect of this application provides a magnetic field visualization device, comprising: a magnetic field sensor, a processor, and a display module, wherein the magnetic field sensor and the display module are connected to the processor;

[0006] The magnetic field sensor is used to acquire motion parameters, which are used to characterize the magnetic field state information of the alternating magnetic field.

[0007] The processor is configured to receive the motion parameters and generate display control commands based on the motion parameters;

[0008] The display module is used to receive the display control command and to visualize the magnetic field state information according to the display control command.

[0009] In one embodiment, the magnetic field sensor includes: a magnetic component, a cavity structure, and a distance sensor located at one end of the cavity structure;

[0010] The cavity structure is disposed in the alternating magnetic field, the magnetic component is disposed in the cavity structure, and the magnetic component reciprocates in the cavity structure in the alternating magnetic field as the magnetic field strength changes;

[0011] The distance sensor is used to measure the motion parameters generated by the reciprocating motion;

[0012] The step of receiving the motion parameters and generating display control commands based on the motion parameters includes:

[0013] The display control command is generated based on the motion parameters.

[0014] In one embodiment, the motion parameters of the reciprocating motion of the magnetic component include: relative distance;

[0015] The distance sensor is used to measure the relative distance between the magnetic component and the distance sensor;

[0016] The step of generating the display control command based on the motion parameters includes:

[0017] The motion amplitude information is calculated based on the relative distance.

[0018] The display control command is generated based on the motion amplitude information, wherein the motion amplitude information is used to characterize the change in magnetic field strength.

[0019] In one embodiment, the motion parameters of the reciprocating motion of the magnetic component include: relative distance and measurement time;

[0020] The distance sensor is used to measure the relative distance between the magnetic component and the distance sensor, and to obtain the measurement time of the relative distance;

[0021] The step of generating the display control command based on the motion parameters includes:

[0022] The motion frequency information of the magnetic component is calculated based on the measurement time and the relative distance.

[0023] The display control command is generated based on the measurement time and the motion amplitude information, wherein the motion frequency information is used to characterize the periodic change information of the magnetic field.

[0024] In one embodiment, the display control instructions include: amplitude control instructions and frequency control instructions; the processor is further configured to generate amplitude control instructions based on the motion amplitude information, and to generate frequency control instructions based on the motion frequency information.

[0025] In one embodiment, the display module includes: an LED light, wherein the amplitude control command is used to control the display brightness and / or display color of the LED light, and the frequency control command is used to control the flashing frequency of the LED light;

[0026] Alternatively, the display module may include a display screen, wherein the amplitude control command and the frequency control command are used to control the display content of the display screen, and the display content includes patterns and / or text.

[0027] In one embodiment, the magnetic field visualization device further includes:

[0028] DC regulated power supply: The DC regulated power supply is connected to the processor and is used to generate a DC drive signal based on the magnetic field control signal and a preset reference voltage;

[0029] H-bridge drive module: The H-bridge drive module is connected to the DC regulated power supply and is used to drive the motor to rotate according to the DC drive signal in order to generate a coil drive signal;

[0030] Excitation coil: The excitation coil is connected to the motor and is used to generate the alternating magnetic field by rotating alternately according to the coil drive signal;

[0031] The magnetic field sensor is located on the rotation axis of the excitation coil.

[0032] In one embodiment, the DC drive signal is a square wave signal.

[0033] In one embodiment, the magnetic field visualization device further includes an input module for receiving device input signals, and the processor is further configured to generate magnetic field control signals in response to the device input signals.

[0034] To achieve the above objectives, a second aspect of the present application provides a physiotherapy device, the physiotherapy device including a magnetic field visualization device as described in any of the first aspects.

[0035] The embodiments of this application include at least the following beneficial effects:

[0036] The magnetic field visualization device and physiotherapy equipment proposed in this application include a magnetic field sensor, a processor, and a display module. The magnetic field sensor and display module are connected to the processor. The magnetic field sensor is used to acquire motion parameters, which characterize the magnetic field state information of the alternating magnetic field. The processor receives the motion parameters and generates display control commands based on them. The display module receives the display control commands and visualizes the magnetic field state information according to them. This application utilizes a magnetic field sensor to convert the magnetic field state information of the alternating magnetic field into motion parameters, and then uses a processor to convert the motion parameters into display control commands for visualization. The magnetic field information of the alternating magnetic field can be intuitively viewed through the display module, which can expand the application scenarios of magnetic physiotherapy related equipment. Attached Figure Description

[0037] Figure 1This is a schematic diagram of the magnetic field visualization device provided in the embodiments of this application.

[0038] Figure 2 A schematic diagram of the magnetic field generation circuit of a magnetic field visualization device provided in another embodiment of this application.

[0039] Figure 3 A schematic diagram of the H-bridge drive module of the magnetic field generation circuit of a magnetic field visualization device provided in another embodiment of this application.

[0040] Figure 4 This is a circuit diagram of the H-bridge drive module of the magnetic field generation circuit of a magnetic field visualization device provided in another embodiment of this application.

[0041] Figure 5 This is a schematic diagram of the square wave duty cycle of the magnetic field generation circuit of a magnetic field visualization device provided in another embodiment of this application.

[0042] Figure 6 This is a schematic diagram of the magnetic field sensor of a magnetic field visualization device provided in another embodiment of this application.

[0043] Figure 7a This is a schematic diagram of the magnetic bead position of a magnetic field visualization device provided in another embodiment of this application.

[0044] Figure 7b This is a schematic diagram of the magnetic bead position of a magnetic field visualization device provided in another embodiment of this application.

[0045] Figure 8 This is a schematic diagram of the magnetic bead movement trajectory of a magnetic field visualization device provided in another embodiment of this application.

[0046] Figure 9 This is a schematic diagram of the magnetic bead movement trajectory of a magnetic field visualization device provided in another embodiment of this application.

[0047] Figure 10 This is a schematic diagram of the magnetic field sensor of a magnetic field visualization device provided in another embodiment of this application.

[0048] Figure 11 This is a schematic diagram illustrating the calculation of the relative distance between the magnetic bead and the distance sensor in another embodiment of the magnetic field visualization device provided in this application.

[0049] Figure 12 This is a flowchart of a control method for a physiotherapy device provided in another embodiment of this application.

[0050] Figure 13 This is a structural block diagram of the control device for a physiotherapy device provided in another embodiment of this application.

[0051] Figure label:

[0052] Magnetic field visualization device 10: magnetic field generating circuit 100, magnetic field sensor 200, processor 300 and display module 400;

[0053] Magnetic field generating circuit 100: DC regulated power supply 110, H-bridge drive module 120, excitation coil 130 and motor 121;

[0054] Magnetic field sensor 200: magnetic component 210, cavity structure 220 and distance sensor 230. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] It should be noted that although functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0058] To better understand the technical solutions provided in this application, the terms used herein are explained accordingly:

[0059] H-bridge: An electronic circuit whose shape resembles the letter H. It consists of four transistors forming the four vertical legs of the H, which can reverse the voltage / current across the connected load or output terminal. It is often used in inverters (DC-AC converters), which convert DC power into AC power of a certain frequency or variable frequency by opening and closing a switch, and are used to drive AC motors.

[0060] Duty cycle: refers to the proportion of the energized time to the total time within a pulse cycle. In essence, it means the ratio of the time occupied by the pulse to the total time during a continuous working period, or the ratio of the duration of a phenomenon after it occurs to the total time in a periodic phenomenon.

[0061] Alternating magnetic field: also known as time-varying electromagnetic field, is an electromagnetic field that changes with time. Since both the electric field and the magnetic field change with time, a changing electric field can induce a magnetic field and a changing magnetic field can induce an electric field. Here, the magnetic field and the electric field constitute an alternating magnetic field.

[0062] With the ever-accelerating pace of modern life, people are facing increasing pressure from all aspects of life, work, and study. Intensifying industry competition and a fast-paced lifestyle are constantly impacting and threatening people's physical and mental health, leading to a growing number of people experiencing sleep disorders or physical pain, requiring the use of physiotherapy equipment. Magnetic therapy equipment is currently gaining popularity. Magnetic therapy equipment typically includes a control unit and a magnetic therapy unit. The control unit adjusts various parameters of the magnetic therapy unit to suit individual needs.

[0063] In related technologies, magnetic therapy devices are mostly imperceptible during operation. It is difficult for users to intuitively see the changes in the magnetic field after adjusting the parameters of the magnetic therapy device, and they may not even know whether the magnetic therapy device actually produces an effective magnetic field, which limits the application scenarios of magnetic therapy devices.

[0064] Based on this, embodiments of this application provide a magnetic field visualization device and a physiotherapy device. The magnetic field visualization device includes a magnetic field sensor, a processor, and a display module. The magnetic field sensor and the display module are connected to the processor. The magnetic field sensor is used to acquire motion parameters, which characterize the magnetic field state information of the alternating magnetic field. The processor receives the motion parameters and generates display control commands based on them. The display module receives the display control commands and visualizes the magnetic field state information according to the commands. Embodiments of this application utilize a magnetic field sensor to convert the magnetic field state information of the alternating magnetic field into motion parameters, and then utilize a processor to convert the motion parameters into display control commands for visualization. The magnetic field information of the alternating magnetic field can be intuitively viewed through the display module, expanding the application scenarios of magnetic physiotherapy related equipment.

[0065] This application provides a magnetic field visualization device and a physiotherapy device, which are specifically described through the following embodiments.

[0066] The magnetic field visualization device in the embodiments of this application is described below.

[0067] Reference Figure 1 In this embodiment of the application, the magnetic field visualization device 10 includes:

[0068] The magnetic field generating circuit 100 is used to generate an alternating magnetic field, which is used for magnetic therapy, such as sleep aid and conditioning. Different therapeutic effects can be achieved by changing the relevant parameters of the magnetic field to meet the needs of personalized therapy. The relevant parameters of the magnetic field can be the magnetic field direction switching frequency or the magnetic field strength, etc.

[0069] The magnetic field sensor 200 is located near the magnetic field generating circuit 100. It is used to generate corresponding motion parameters based on the magnetic field state information during the alternating magnetic field change process, and to quantify the magnetic field state information using the motion parameters.

[0070] The processor 300 is connected to the magnetic field sensor 200 and is used to receive motion parameters sent by the magnetic field sensor 200, analyze the motion parameters, and generate display control commands for quantifying magnetic field state information.

[0071] Display module 400, connected to processor 300, is used to visualize magnetic field status information according to display control commands sent by processor 300.

[0072] In one embodiment, reference is made to Figure 2 The magnetic field generating circuit 100 includes: a DC regulated power supply 110, an H-bridge drive module 120, and an excitation coil 130. The DC regulated power supply 110 is connected to the H-bridge drive module 120, and the H-bridge drive module 120 is connected to the excitation coil 130.

[0073] In one embodiment, a DC regulated power supply 110 is connected to a processor 300. The magnetic field visualization device 10 also includes an input module connected to the processor 300, the input module being used to receive device input signals, and the processor 300 generating magnetic field control signals in response to the device input signals.

[0074] In one embodiment, the input module is a user operation panel, which can be a display screen, buttons, or knobs. The user sets magnetic field parameters related to the alternating magnetic field on the user operation panel according to their needs, forming a device input signal, such as increasing the magnetic field, decreasing the magnetic field, or high-frequency or low-frequency switching. After receiving the device input signal representing the user's set action, the processor 300 generates a magnetic field control signal in response to the device input signal, and sends a magnetic field control command to the DC regulated power supply 110 based on the action, thereby fulfilling the user's setting requirements for the magnetic field parameters.

[0075] In some embodiments, the DC regulated power supply 110 generates a DC drive signal based on a magnetic field control command and a preset reference voltage.

[0076] Reference Figure 3 The H-bridge drive module 120 also includes a motor 121, which is connected to the excitation coil 130. The H-bridge drive module 120 is connected to a DC regulated power supply 110, receives a DC drive signal to drive the motor 121 to rotate, thereby generating a coil drive signal. The excitation coil 130 rotates according to the coil drive signal to generate an alternating magnetic field.

[0077] Reference Figure 4The H-bridge drive module 120 includes a first-direction transistor group and a second-direction transistor group. When the first-direction transistor group is turned on, the motor 121 rotates in the first direction; when the second-direction transistor group is turned on, the motor 121 rotates in the second direction. Here, the first direction and the second direction are opposite. For example, the first direction is defined as forward rotation and the second direction is defined as reverse rotation.

[0078] Specifically, refer to Figure 4 The first direction transistor group includes a first transistor Q1 and a fourth transistor Q4. The collectors of the first transistor Q1 and the fourth transistor Q4 are connected to the motor 121. The emitters of the first transistor Q1 and the fourth transistor Q4 are connected to the power supply and receive voltage Vcc. The bases of the first transistor Q1 and the fourth transistor Q4 are connected to the DC regulated power supply 110 and receive the DC drive signal sent by the DC regulated power supply 110 to adjust the direction of current flow through the motor 121, thereby driving the motor 121 to rotate forward.

[0079] Reference Figure 4 The second-direction transistor includes a second transistor Q2 and a third transistor Q3. The collectors of the second transistor Q2 and the third transistor Q3 are connected to the oscillator. The emitters of the second transistor Q2 and the third transistor Q3 are connected to the power supply and connected to the voltage Vcc. The bases of the second transistor Q2 and the third transistor Q3 are connected to the DC regulated power supply 110 and receive the DC drive signal sent by the DC regulated power supply 110 to adjust the direction of current flow through the motor 121, thereby driving the motor 121 to reverse.

[0080] As described above, in this embodiment, the H-bridge drive module 120 adjusts the direction of the current in the motor 121 according to the DC drive signal, thereby changing the rotation direction of the motor 121 and generating a coil drive signal. The excitation coil 130 is then connected to the motor 121 and rotates forward or backward according to the coil drive signal. When rotating, the excitation coil 130 cuts magnetic lines of force. Due to the change in rotation direction, an alternating magnetic field is generated, which is used to change the user's ambient magnetic field. This alternating magnetic field acts on the cerebral cortex, generating an induced current in the human body to change the action potential of neurons in the cerebral cortex, thereby regulating brain metabolism and neural activity, and achieving the effect of magnetic therapy.

[0081] In some embodiments, the DC regulated power supply 110 generates a DC drive signal according to a preset reference voltage. The preset reference voltage can be set according to actual conditions and can be 3V-5V.

[0082] Reference Figure 5The DC drive signal is a square wave signal. For example, if the preset reference voltage is 5V, the amplitude of the square wave signal in the positive direction is +5V, and the amplitude in the negative direction is -5V. When the square wave signal changes from positive to negative, or from negative to positive, the rotation direction of the motor will change accordingly. It can be understood that the H-bridge drive module 120 switches between forward and reverse rotation multiple times within the duration of the alternating magnetic field, based on the DC drive signal. For example, as shown in the figure, it switches 5 times within the duration: forward-reverse-forward-reverse-forward-forward, comprising three cycles. Within each cycle, forward rotation switches to reverse rotation once. The duration of forward rotation and the duration of reverse rotation can be different in the three cycles, meaning the duty cycle of the square wave signal is different per cycle. The total duration of forward rotation and the duration of reverse rotation is the duration of the alternating magnetic field. The number of switching times and the duration of forward rotation and reverse rotation during each switching can be set according to requirements; this embodiment does not impose specific limitations on this.

[0083] As can be seen from the above, the magnetic field generating circuit of this application embodiment can generate an alternating magnetic field according to set requirements. In order to measure the magnetic field state information of the alternating magnetic field, refer to... Figure 6 A magnetic field sensor 200 is mounted on the rotation axis of the excitation coil 130, and magnetic lines of force generated by the alternating magnetic field pass through the magnetic field sensor 200. The magnetic field sensor 200 includes a magnetic component 210 and a cavity structure 220. The cavity structure 220 is disposed in the alternating magnetic field, and the magnetic component 210 is disposed within the cavity structure 220. The magnetic component 210 reciprocates within the cavity structure 220 as the magnetic field strength changes. The processor 300 generates display control commands based on the motion parameters of the reciprocating motion.

[0084] Reference Figure 6 The cavity structure 220 is a vertical tubular shape. The magnetic component 210 is a magnetic bead, which is a static magnet with opposite poles at its two ends, namely the south pole (S) and the north pole (N). The magnetic field lines of the alternating magnetic field also have south poles (S) and north poles (N). Since these magnetic field lines pass through the cavity structure 220, they affect the position of the magnetic bead. (Refer to...) Figure 7a According to the principle that like poles repel and unlike poles attract in magnetic fields, if the direction of the magnetic field lines is from bottom to top, from the south pole (S) to the north pole (N), and the polarity of the magnetic bead is opposite to the direction of the magnetic field lines (i.e., the lower end of the bead is the north pole (N) and the upper end is the south pole (S), then the magnetic bead will experience both an upward and a downward attractive force. Since the magnetic field has just reversed, the magnetic attraction is unstable, and the magnetic bead will oscillate for a short period before stabilizing in the middle position of the vertical tubular cavity structure 220 (e.g., the position shown by the dotted line in the figure). (Refer to...) Figure 7bAccording to the principle that like poles of a magnetic field repel and unlike poles attract, if the magnetic field of the alternating magnetic field is reversed, the direction of the magnetic field lines will change from top to bottom from the south pole (S) to the north pole (N). Since the magnetic bead is a static magnet, its magnetism remains unchanged. The lower end of the magnetic bead is the north pole (N) and the upper end is the south pole (S). At this time, the polarity of the magnetic bead is the same as the direction of the magnetic field lines. Therefore, both the upper and lower ends of the magnetic bead will be subjected to repulsive forces. Since the magnetic field has just reversed, the repulsive forces are unstable and will produce oscillating motion. After a period of motion, it will stabilize in the middle position of the cavity structure 220.

[0085] Throughout the entire oscillating motion, the trajectory and motion envelope of the magnetic bead are as follows: Figure 8 As shown, the horizontal axis represents the amplitude of the magnetic bead's movement, the vertical axis represents the movement time, and the position where the horizontal axis is 0 indicates... Figure 7a The cavity structure 220 is located at the middle position. At this time, the motion envelope gradually moves from the middle position to the highest amplitude, and then gradually falls back to the middle position. It can be understood that the highest amplitude of the motion is related to the magnetic field strength of the alternating magnetic field. The greater the magnetic field strength, the greater the distance of the highest amplitude relative to the middle position, and vice versa.

[0086] In one embodiment, if the alternating magnetic field has not yet stopped the oscillating motion of the magnetic bead, and another magnetic field reversal occurs, the trajectory of the magnetic bead will be as follows: Figure 9 As shown, a magnetic field reversal occurs at time t1, with a magnetic field strength of S1. The expected oscillation duration extends to t3, and the maximum amplitude is A1, meaning one oscillation cycle is completed between t1 and t3. If a magnetic field reversal occurs at time t2, with a magnetic field strength of S2, and S2 being twice the magnetic field strength of S1, the expected oscillation duration extends to t4, and the maximum amplitude is A2. The magnetic bead should slowly fall back to its center position. However, due to the repulsion between like poles, it moves towards the maximum amplitude A2 at time t2 and will not return to the center position until the oscillation cycle is completed at time t4. It can be understood that the duration of each oscillation is related to the weight and magnetic strength of the magnetic bead, and the maximum amplitude A2 is twice the maximum amplitude A1.

[0087] As described above, the reciprocating motion of the magnetic bead is its oscillating motion. The amplitude of the oscillation can be used to obtain information about the change in magnetic field strength, and the duration of the oscillation can be used to obtain information about the periodic change in the magnetic field. Therefore, referring to... Figure 10 The magnetic field sensor 200 also includes a distance sensor 230 located at one end of the cavity structure 220. The distance sensor 230 can be located at either end of the cavity structure 220, such as... Figure 10In the cavity structure 220, the distance sensor 230 can be placed at both its upper and lower ends in the vertical direction. The distance sensor 230 can measure the relative distance between itself and the magnetic component 210 (e.g., a magnetic bead), and can store the measurement time. It is understood that in this embodiment, the distance sensor can be located at either end of the cavity structure, or one distance sensor can be placed at each end of the cavity structure; this embodiment does not limit the position or number of distance sensors.

[0088] In one embodiment, the distance sensor 230 is communicatively connected to the processor 300 and can send the motion parameters it measures relative to the magnetic component 210 to the processor 300. These motion parameters include relative distance and measurement time. The processor 300 can calculate the motion amplitude information (e.g., the aforementioned oscillation amplitude) during the oscillation process based on the relative distance, and simultaneously obtain the aforementioned oscillation duration based on the measurement time.

[0089] Reference Figure 11 Assuming the length of the cavity structure 220 is h1, the magnetic bead is located in the middle, and the distance sensor 230 is located at the bottom of the cavity structure 220, then when the magnetic bead is stationary, the initial relative distance between the distance sensor 230 and the magnetic bead is h1 / 2. When the magnetic field reverses, the upward oscillation amplitude of the magnetic bead is A3, and the relative distance between the magnetic bead and the distance sensor 230 is h1 / 2 + A3. Then, due to gravity, the downward oscillation amplitude of the magnetic bead is A4, and the relative distance between the magnetic bead and the distance sensor 230 is h1 / 2 - A4. The relative distance of the magnetic bead is recorded sequentially according to the measurement time. The measurement time can be preset, for example, once every 1 ms. If the distance sensor is a laser rangefinder, then a laser is emitted once every 1 ms to obtain the relative distance between the magnetic bead and the distance sensor 230.

[0090] In one embodiment, the processor 300 calculates the motion amplitude information of the magnetic bead based on the relative distance between the magnetic bead and the distance sensor 230 at each measurement time. Specifically, the oscillation amplitude of the magnetic bead at each measurement time is obtained by subtracting the initial relative distance from the real-time relative distance. The oscillation amplitude, i.e., the motion amplitude information, is used to characterize the change in magnetic field strength. Further, by plotting as shown... Figure 8 , Figure 9 The motion trajectory diagram is used to calculate the oscillation period of the magnetic bead based on the measurement time and motion amplitude information. The oscillation period is the motion frequency information, which is used to characterize the periodic change information of the magnetic field. In specific calculation, the switching frequency between different oscillation periods can be obtained by analyzing the changing trend of the envelope, and then the periodic change information of the magnetic field can be obtained.

[0091] The above process obtains motion amplitude and frequency information through processor calculations, and then visualizes the changes in the alternating magnetic field based on the motion amplitude and frequency information. In one embodiment, the processor 300 generates amplitude control instructions based on the motion amplitude information and frequency control instructions based on the motion frequency information, and sends the amplitude control instructions and frequency control instructions to the display module 400 for display. It is understood that the processor 300 can display only one or both of the magnetic field strength change information and magnetic field period change information as needed.

[0092] In one embodiment, the display module 400 is an LED lamp. An amplitude control command is used to control the display brightness and / or display color of the LED lamp, and a frequency control command is used to control the blinking frequency of the LED lamp. Specifically, a brighter LED lamp indicates a stronger magnetic field, and vice versa. Alternatively, it can be represented by a color; for example, light yellow indicates a weak magnetic field, and bright yellow indicates a strong magnetic field. Simultaneously, the LED lamp blinks once each time the alternating magnetic field reverses. A faster blinking frequency indicates more frequent reversals of the alternating magnetic field, and vice versa.

[0093] In another embodiment, the display module 400 can also be a speaker, such as a buzzer or a loudspeaker. If the display module 400 is a buzzer, the amplitude control command is used to control the sound intensity of the speaker, and the frequency control command is used to control the sound rhythm of the speaker. Specifically, the louder the sound emitted by the buzzer, the stronger the magnetic field strength; conversely, the lower the sound emitted by the buzzer, the weaker the magnetic field strength. Simultaneously, the buzzer emits a sound once each time the alternating magnetic field reverses. The faster the buzzer's sound frequency, the more frequent the reversals of the alternating magnetic field; conversely, the slower the buzzer's sound frequency, the fewer the reversals of the alternating magnetic field.

[0094] Alternatively, if the display module 400 is a speaker device, it can also represent the change process of the alternating magnetic field by broadcasting specific voice content. For example, it can broadcast: "The magnetic field strength is currently at level N," where N can be specifically set according to the magnetic field strength, or broadcast: "Magnetic field reversed," etc., thus visually demonstrating the change process of the alternating magnetic field through the broadcast content.

[0095] In another embodiment, the display module 400 can be a display screen. Amplitude control commands and frequency control commands are used to control the display content, which includes patterns and / or text. When the display content is text, the screen may display "The magnetic field strength is currently at level N" or "Magnetic field reversal," where N can be specifically set according to the magnetic field strength. Different display content is used to visually represent the change process of the alternating magnetic field. When the display content is a pattern, such as a bar chart, the height of the bars can represent the magnetic field strength, and the change in the direction of the bars can represent the magnetic field reversal process. It is understood that the display content can be set according to actual needs.

[0096] It is understood that the display module in the above embodiments can be displayed on a terminal device, where the processor sends amplitude control instructions and frequency control instructions to the terminal device via a communication network.

[0097] The magnetic field visualization device proposed in the above embodiments includes a magnetic field sensor, a processor, and a display module. The magnetic field sensor converts the magnetic field state information of the alternating magnetic field into motion parameters, and the processor converts the motion parameters into display control commands for visualization. The magnetic field information of the alternating magnetic field can be seen intuitively through the display module, which can expand the application scenarios of magnetic therapy-related equipment.

[0098] This application also provides a physiotherapy device, which is a magnetic therapy device. The magnetic therapy device is equipped with the magnetic field visualization device described in the above embodiments. It is understood that the physiotherapy device needs to have the functional components described in the above embodiments, and may include components other than those described above. The product form is not specifically limited in this embodiment; the product form may be a magnetic therapy sleep aid pillow, a magnetic therapy massager, or a wearable magnetic therapy device, etc.

[0099] This application also provides a control method for a physiotherapy device, which is applied to the magnetic field visualization device as described in the above embodiments. Figure 12 This is an optional flowchart of the control method provided in the embodiments of this application. Figure 12 The method may include, but is not limited to, steps S1010 to S1040. It is also understood that this embodiment... Figure 12 The order of steps S1010 to S1040 is not specifically limited, and the order of steps can be adjusted or some steps can be reduced or added according to actual needs.

[0100] Step S1210: Obtain the user's magnetic field pattern information.

[0101] In some embodiments, the user is the user of the physiotherapy device, and the magnetic field mode information includes: magnetic field strength setting and / or magnetic field reversal frequency setting. For example, corresponding buttons, display modules, or related software can be installed on the physiotherapy device to allow the user to select magnetic field mode information and receive the magnetic field strength and / or magnetic field reversal frequency set by the user.

[0102] Step S1220: During operation, the magnetic field state information of the alternating magnetic field is converted into motion parameters.

[0103] In some embodiments, as described above, during operation of the magnetic field visualization device, a magnetic field sensor converts the magnetic field state information of the alternating magnetic field into motion parameters. These motion parameters include relative distance and measurement time. Specifically, a distance sensor measures the relative distance between the magnetic component and the sensor itself. The processor then calculates the motion amplitude information based on the relative distance, using this motion amplitude information to characterize the change in magnetic field strength. Furthermore, the distance sensor also acquires the measurement time of the relative distance. The processor calculates the motion frequency information of the magnetic component based on the measurement time and motion amplitude information, using this motion frequency information to characterize the periodic change in the magnetic field.

[0104] Step S1230: Convert motion parameters into display control commands for visual presentation.

[0105] In one embodiment, the display control instructions include: amplitude control instructions and frequency control instructions. The processor generates amplitude control instructions based on motion amplitude information and frequency control instructions based on motion frequency information.

[0106] As can be seen from the above, the embodiments of this application utilize a magnetic field sensor to convert the magnetic field state information of an alternating magnetic field into motion parameters, and then use a processor to convert the motion parameters into display control commands for visualization. The magnetic field information of the alternating magnetic field can be seen intuitively through the display module, which can expand the application scenarios of magnetic therapy-related equipment.

[0107] This application also provides a control device that can implement the control method of the above-mentioned physiotherapy equipment, referring to... Figure 13 The device includes:

[0108] Acquisition module 1310: Used to acquire the user's magnetic field pattern information.

[0109] Magnetic field state information conversion module 1320: used to convert the magnetic field state information of the alternating magnetic field into motion parameters during operation.

[0110] Visualization module 1330: Used to convert motion parameters into display control commands for visual presentation.

[0111] The specific implementation of the control device in this embodiment is basically the same as the specific implementation of the control method described above, and will not be repeated here.

[0112] This application embodiment also provides a storage medium, which is a computer-readable storage medium, storing a computer program that, when executed by a processor, implements the above-described control method.

[0113] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0114] The magnetic field visualization device and physiotherapy equipment proposed in this application include a magnetic field sensor, a processor, and a display module. The magnetic field sensor and display module are connected to the processor. The magnetic field sensor is used to acquire motion parameters, which characterize the magnetic field state information of the alternating magnetic field. The processor receives the motion parameters and generates display control commands based on them. The display module receives the display control commands and visualizes the magnetic field state information according to them. This application utilizes a magnetic field sensor to convert the magnetic field state information of the alternating magnetic field into motion parameters, and then uses a processor to convert the motion parameters into display control commands for visualization. The magnetic field information of the alternating magnetic field can be intuitively viewed through the display module, which can expand the application scenarios of magnetic physiotherapy related equipment.

[0115] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0116] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0117] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0118] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0119] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0120] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0121] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0122] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0123] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0124] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A magnetic field visualization device, characterized in that, include: A magnetic field sensor, a processor, and a display module, wherein the magnetic field sensor and the display module are connected to the processor; The magnetic field sensor is used to acquire motion parameters, which are used to characterize the magnetic field state information of the alternating magnetic field. The processor is configured to receive the motion parameters and generate display control commands based on the motion parameters; The display module is used to receive the display control command and to visualize the magnetic field state information according to the display control command; The magnetic field sensor includes: a magnetic component, a cavity structure, and a distance sensor located at one end of the cavity structure; the cavity structure is disposed in the alternating magnetic field, the magnetic component is disposed in the cavity structure, and the magnetic component reciprocates within the cavity structure in response to changes in the magnetic field strength in the alternating magnetic field; the distance sensor is used to measure the motion parameters generated by the reciprocating motion. The step of receiving the motion parameters and generating display control commands based on the motion parameters includes: generating the display control commands according to the motion parameters, wherein the motion parameters of the reciprocating motion of the magnetic component include: relative distance, and the distance sensor is used to measure the relative distance between the magnetic component and the distance sensor; The step of generating the display control command based on the motion parameters includes: calculating motion amplitude information based on the relative distance; and generating the display control command based on the motion amplitude information, wherein the motion amplitude information is used to characterize the magnetic field strength change information.

2. The magnetic field visualization device according to claim 1, characterized in that, The motion parameters of the reciprocating motion of the magnetic component also include: measurement time; The measurement time for obtaining the relative distance; The step of generating the display control command based on the motion parameters includes: The motion frequency information of the magnetic component is calculated based on the measurement time and the relative distance. The display control command is generated based on the measurement time and the motion amplitude information, wherein the motion frequency information is used to characterize the periodic change information of the magnetic field.

3. The magnetic field visualization device according to claim 2, characterized in that, The display control instructions include: amplitude control instructions and frequency control instructions; the processor is further configured to generate amplitude control instructions based on the motion amplitude information, and to generate frequency control instructions based on the motion frequency information.

4. The magnetic field visualization device according to claim 3, characterized in that, The display module includes: LED lights, the amplitude control command is used to control the display brightness and / or display color of the LED lights, and the frequency control command is used to control the flashing frequency of the LED lights; Alternatively, the display module may include a display screen, wherein the amplitude control command and the frequency control command are used to control the display content of the display screen, and the display content includes patterns and / or text.

5. The magnetic field visualization device according to any one of claims 1 to 4, characterized in that, The magnetic field visualization device also includes: DC regulated power supply: The DC regulated power supply is connected to the processor and is used to generate a DC drive signal based on the magnetic field control signal and a preset reference voltage; H-bridge drive module: The H-bridge drive module is connected to the DC regulated power supply and is used to drive the motor to rotate according to the DC drive signal in order to generate a coil drive signal; Excitation coil: The excitation coil is connected to the motor and is used to generate the alternating magnetic field by rotating alternately according to the coil drive signal; The magnetic field sensor is located on the rotation axis of the excitation coil.

6. The magnetic field visualization device according to claim 5, characterized in that, The DC drive signal is a square wave signal.

7. The magnetic field visualization device according to claim 6, characterized in that, The magnetic field visualization device further includes an input module for receiving device input signals, and the processor is further configured to generate magnetic field control signals in response to the device input signals.

8. A physiotherapy device, characterized in that, The physiotherapy equipment includes a magnetic field visualization device as described in any one of claims 1 to 7.

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