Schumann wave generating device and control method thereof

Abstract

The embodiment of the invention provides the technical field of electronic equipment, and particularly relates to a Schumann wave generating device and a control method thereof. In the embodiment of the invention, a signal generator can be used for generating a first sine wave signal of a target Schumann wave frequency, and generating a first control signal and a second control signal according to a target intensity gear; the voltage amplification circuit can be used for performing voltage amplification on the first sine wave signal according to the first control signal to obtain a second sine wave signal; the booster circuit can be used for performing voltage amplification on the power supply voltage according to the second control signal to obtain a first voltage signal; the driving control circuit can be used for performing current amplification on the second sine wave signal according to the first voltage signal to obtain a third sine wave signal; the Schumann wave generation module can be used for generating Schumann waves according to the third sine wave signal. Therefore, the Schumann wave generating device provided by the embodiment of the invention can generate the Schumann wave which is the same as the actual Schumann wave and meets the requirements of the user.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a Schumann wave generating device and a control method thereof. Background Art

[0002] Schumann waves are extremely low frequency (ELF) electromagnetic waves that exist on Earth. They are excited by lightning discharges and have a wavelength approximately equal to the circumference of the Earth. The frequency of Schumann waves is controlled by the waveguide of the Earth's ionosphere, with a main frequency of approximately 7.83 Hz, which is close to the alpha waves (frequency range: 8-12Hz) and theta waves (frequency range: 4-8Hz) of the human brain. Therefore, when Schumann waves reach the human body, resonance occurs, which helps the brain enter a more comfortable state such as relaxation or meditation, thereby improving the physiological state of the human body. For example, it improves the user's sleep quality.

[0003] At present, the Schumann waves generated by the existing Schumann wave generator are usually square wave signals, while the actual Schumann waves are sine wave signals, that is, there is a large gap between the Schumann waves generated by the existing Schumann wave generator and the actual Schumann waves. It can be seen that the improvement of the physiological state of the square wave Schumann waves generated by the existing Schumann wave generator when acting on the human body needs to be further improved. Summary of the invention

[0004] The embodiment of the present application provides a Schumann wave generating device and a control method thereof, which are used to generate a sinusoidal Schumann wave close to the actual Schumann wave, thereby improving the physiological state of the human body.

[0005] In a first aspect, an embodiment of the present application provides a Schumann wave generating device, the device comprising:

[0006] A signal generator, used to generate a first sine wave signal of a target Schumann wave frequency, and to generate a first control signal and a second control signal according to a target intensity level;

[0007] a voltage amplifying circuit, configured to amplify the voltage of the first sinusoidal wave signal according to the first control signal to obtain a second sinusoidal wave signal;

[0008] a boost circuit, configured to amplify the power supply voltage according to the second control signal to obtain a first voltage signal;

[0009] a drive control circuit, configured to amplify the current of the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal;

[0010] The Schumann wave generating module is used to generate a Schumann wave according to the third sinusoidal wave signal.

[0011] In an optional embodiment, the device further includes: a first adjustment module and / or a second adjustment module; wherein,

[0012] The first adjustment module is used to receive a first user input for setting the Schumann wave frequency, determine the target Schumann wave frequency according to the first user input, and send the target Schumann wave frequency to the signal generator;

[0013] The second adjustment module is used to receive a second user input for setting the Schumann wave intensity, determine the target intensity level according to the second user input, and send the target intensity level to the signal generator.

[0014] In an optional embodiment, the voltage amplification circuit includes: an isolation module and a voltage amplification module; wherein,

[0015] The isolation module is used to perform voltage following on the first sinusoidal wave signal connected to the isolation module to obtain a first sinusoidal wave signal after voltage following;

[0016] The voltage amplification module is used to access the first sinusoidal wave signal after the voltage is followed output by the isolation module, and perform voltage amplification on the first sinusoidal wave signal after the voltage is followed according to the first control signal to obtain the second sinusoidal wave signal.

[0017] In an optional embodiment, the boost circuit includes: an enabling module and a boost module; wherein,

[0018] The enabling module is used to connect the power supply voltage and the enabling signal of the boosting circuit; the enabling signal is used to determine whether to connect the power supply voltage to the boosting module;

[0019] The boost module is used to generate a reference voltage after being connected to the power supply voltage, and the amplifier circuit in the boost module determined by the second control signal amplifies the reference voltage to obtain the first voltage signal.

[0020] In an optional embodiment, the drive control circuit includes a multi-stage amplifier circuit composed of a plurality of current amplifiers; wherein each current amplifier is used to amplify the current of the sinusoidal wave signal connected to the second input terminal according to the first voltage signal connected to the first input terminal.

[0021] In an optional embodiment, the Schumann wave generating module includes an induction coil, and the induction coil is used to perform electromagnetic induction on the third sinusoidal wave signal to generate the Schumann wave.

[0022] In a second aspect, an embodiment of the present application further provides a method for controlling the Schumann wave generating device as described in the first aspect, the method comprising:

[0023] In response to a Schumann wave generation instruction for a Schumann wave generating device, a first sine wave signal of a target Schumann wave frequency is generated, and a first control signal and a second control signal are generated according to a target intensity level;

[0024] amplifying the voltage of the first sine wave signal according to the first control signal to obtain a second sine wave signal, and amplifying the voltage of the power supply voltage according to the second control signal to obtain a first voltage signal;

[0025] Performing current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal;

[0026] A Schumann wave is generated according to the third sinusoidal wave signal.

[0027] In an optional embodiment, generating a first sinusoidal wave signal of a target Schumann wave frequency includes:

[0028] In response to a first user input to a first adjustment module, determining the target Schumann wave frequency according to the first user input;

[0029] The first sinusoidal wave signal of the target Schumann wave frequency is generated.

[0030] In an optional embodiment, generating the first control signal and the second control signal according to the target intensity level includes:

[0031] In response to a second user input to a second adjustment module, determining the target intensity level according to the second user input;

[0032] The first control signal and the second control signal are generated according to the target intensity level.

[0033] In an optional embodiment, the step of amplifying the power supply voltage according to the second control signal to obtain the first voltage signal includes:

[0034] After determining that the boost module included in the boost circuit is connected to the power supply voltage, generating a reference voltage;

[0035] The amplifier circuit in the boost module determined according to the second control signal amplifies the reference voltage to obtain the first voltage signal.

[0036] The beneficial effects of this application are as follows:

[0037] In the Schumann wave generating device provided in the embodiment of the present application, the signal generator can be used to generate a first sinusoidal wave signal of a target Schumann wave frequency, and to generate a first control signal and a second control signal according to a target intensity level; the voltage amplification circuit can be used to perform voltage amplification on the first sinusoidal wave signal according to the first control signal to obtain a second sinusoidal wave signal; the boost circuit can be used to perform voltage amplification on the power supply voltage according to the second control signal to obtain a first voltage signal; the drive control circuit can be used to perform current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal; the Schumann wave generation module can be used to generate a Schumann wave according to the third sinusoidal wave signal.

[0038] It can be seen that the Schumann wave generating device provided in the embodiment of the present application can generate a Schumann wave that is a sine wave that is the same as the actual Schumann wave and meets the user's needs (i.e., the target Schumann wave frequency and the target intensity level). Not only does it solve the problem that there is a large gap between the Schumann waves generated by the existing Schumann wave generating device and the actual Schumann waves, but it also achieves the adjustment of the intensity of the Schumann waves, thereby obtaining Schumann waves that better meet the needs of the target users. Therefore, when the Schumann waves generated by the Schumann wave generating device provided in the embodiment of the present application act on the human body, they can better improve the physiological state of the human body.

[0039] In addition, other features and advantages of the present application will be described in the subsequent description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described here are used to provide a further understanding of the present application, constitute a part of the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0041] Figure 1 This is a schematic diagram of a specific circuit structure of an existing Schumann wave generating device according to an embodiment of the present application;

[0042] Figure 2 A schematic structural diagram of a Schumann wave generating device provided in an embodiment of the present application;

[0043] Figure 3 A schematic diagram of a specific circuit structure of a regulating module provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of the structure of a signal generator provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of the structure of a voltage amplifier circuit provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of a specific circuit structure of a voltage amplifier circuit and a drive control circuit provided in an embodiment of the present application;

[0047] Figure 7 A schematic diagram of the structure of a boost circuit provided in an embodiment of the present application;

[0048] Figure 8 A schematic diagram of a specific circuit structure of a boost circuit provided in an embodiment of the present application;

[0049] Fig. 9 A schematic diagram of an implementation flow of a control method for a Schumann wave generating device provided in an embodiment of the present application;

[0050] Fig.10 A method based on the embodiment of the present application is provided Fig. 9 Flowchart of the control logic. DETAILED DESCRIPTION

[0051] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0052] It should be understood that the various steps described in the method implementation of the present application can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0053] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0054] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0055] The names of the messages or information exchanged between multiple devices in the embodiments of the present application are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0056] First, the design concept of the embodiment of the present application is briefly introduced below:

[0057] The Earth's surface and ionosphere can form a resonant cavity with a special resonant frequency. This resonant frequency is mainly determined by the size of the Earth (e.g., circumference) and is excited by the Earth when it discharges (e.g., lightning). The electromagnetic vibration phenomenon that produces this resonant frequency is called Schumann resonance.

[0058] The spectrum of Schumann resonance is in the ELF band, with a frequency of about 8Hz (such as 7.83 / 7.5 / 7.2, etc.). The natural electromagnetic waves generated by oscillation are called Schumann waves. Therefore, Schumann waves are a kind of ELF electromagnetic waves existing in the earth, which are excited by lightning discharges and have a wavelength approximately equal to the circumference of the earth. Since the frequency of Schumann waves is controlled by the waveguide of the earth's ionosphere, the main frequency is about 7.83Hz, which is close to the alpha waves (frequency range of 8-13Hz) and theta waves (frequency range of 4-8Hz) of the human brain. Therefore, when Schumann waves reach or act on the human body, resonance will occur, which will help the human brain enter a more comfortable state such as relaxation or meditation, and thus improve the physiological state of the human body.

[0059] Among them, the Earth's ionosphere waveguide refers to the Earth's ionosphere as a natural waveguide that can propagate ELF electromagnetic waves and very low frequency (VLF) electromagnetic waves.

[0060] See also Figure 1 As shown, it is a schematic diagram of the composition structure of an existing Schumann wave generating device provided in an embodiment of the present application. The low dropout regulator (LDO) chip XC6206 (i.e. 65T9) in the Schumann wave generating device can stabilize the battery voltage to 3.3V to power the ICM7555. The indicator light Blue is the Schumann wave transmission signal indicator light, which flashes at a frequency of 7.83Hz. Pin 3 of LCM7555 is the output signal pin, and a multivibrator can be formed by adjusting resistors, capacitors, variable resistors, etc. to generate a square wave, wherein the variable resistor adjusts the oscillation frequency within a certain range so that pin 3 outputs a 7.83Hz square wave signal with an amplitude of 3.3V. It should also be noted that Figure 1The A09T in the figure is a field effect tube.

[0061] It can be seen that the Schumann wave generated by the existing Schumann wave generating device is usually a square wave signal, while the actual Schumann wave is a sine wave signal, that is, there is a large gap between the Schumann wave generated by the existing Schumann wave generating device and the actual Schumann wave.

[0062] Therefore, in order to make the generated Schumann waves better play a role in relaxing the human body. The present application embodiment provides a structural schematic diagram of a Schumann wave generating device, see Figure 2 As shown, the Schumann wave generating device may include: a signal generator 11, a voltage amplifying circuit 12, a boosting circuit 13, a driving control circuit 14 and a Schumann wave generating module 15; wherein,

[0063] The signal generator 11 is electrically connected to the voltage amplifier circuit 12 and the boost circuit 13, respectively. The drive control circuit 14 is electrically connected to the voltage amplifier circuit 12, the boost circuit 13 and the Schumann wave generation module 15, respectively. The signal generator 11 can be used to generate a first sinusoidal wave signal of a target Schumann wave frequency, and to generate a first control signal and a second control signal according to a target intensity level. The voltage amplifier circuit 12 can be used to perform voltage amplification on the first sinusoidal wave signal according to the first control signal to obtain a second sinusoidal wave signal. The boost circuit 13 can be used to perform voltage amplification on the power supply voltage according to the second control signal to obtain a first voltage signal. The drive control circuit 14 can be used to perform current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal. The Schumann wave generation module 15 can be used to generate a Schumann wave according to the third sinusoidal wave signal.

[0064] Based on the above method, the Schumann wave generating device can generate sinusoidal Schumann waves through the signal generator 11, which is very close to the actual Schumann waves in nature; and, according to the target Schumann wave frequency and target intensity level, it can generate Schumann waves that meet the needs of the target user, thereby improving the target user's experience of using the Schumann wave generating device.

[0065] In order to more flexibly control the frequency and / or intensity of the Schumann waves generated by the Schumann wave generating device, the Schumann wave generating device may further include an adjustment module 16 electrically connected to the signal generator 11. The adjustment module 16 may specifically include a first adjustment module 16a and / or a second adjustment module 16b. Among them, the first adjustment module 16a may be used to receive a first user input for setting the Schumann wave frequency, thereby determining the target Schumann wave frequency according to the first user input, and then sending the target Schumann wave frequency to the signal generator 11. That is, the target user can flexibly adjust the frequency of the Schumann waves finally generated by the Schumann wave generating module 15 (or the Schumann wave generating device) through the first adjustment module 16a. The second adjustment module 16b may be used to receive a second user input for setting the Schumann wave intensity, thereby determining the target intensity gear according to the second user input, and then sending the target intensity gear to the signal generator. That is, the target user can flexibly adjust the intensity of the Schumann waves finally generated by the Schumann wave generating module 15 (or the Schumann wave generating device) through the second adjustment module 16b.

[0066] Optionally, the first regulating module 16a may further include a first regulating submodule and a second regulating submodule. The first regulating submodule may be used to increase the frequency of the Schumann wave according to a set unit frequency increment (e.g., 0.01 Hz); and the second regulating submodule may be used to reduce the frequency of the Schumann wave according to the unit frequency increment.

[0067] See also Figure 3 As shown, it is a schematic diagram of the circuit structure of a regulating module provided in an embodiment of the present application. Among them, the circuit structures corresponding to the first regulating module 16a (i.e., the first regulating submodule and the second regulating submodule) and the second regulating module can be the same, which is not limited in the embodiment of the present application. Figure 3 As shown, each module can be composed of a button, a pull-up resistor and an anti-shake filter capacitor for the button. One end of the pull-up resistor is used to access the power supply voltage VCC of the corresponding module, and the other end of the pull-up resistor is respectively connected to one end of the button and one end of the anti-shake filter capacitor, and the other end of the button and the other end of the anti-shake filter capacitor are both grounded, that is, the button is connected in parallel with the anti-shake filter capacitor. In addition, the other end of the pull-up resistor is also used to send an electrical signal representing the target Schumann wave frequency or target intensity gear to the signal generator 11.

[0068] The first regulating submodule may include a pull-up resistor R1, an anti-shake filter capacitor C1 and a button S1, wherein one end of the pull-up resistor R1 is used to access the power supply voltage VCC of the first regulating submodule, the anti-shake filter capacitor C1 is connected in parallel with the button S1, the other end of the pull-up resistor R1 is electrically connected to one end of the anti-shake filter capacitor C1 and the button S1, the other end of the anti-shake filter capacitor C1 and the button S1 is grounded, and the electrical signal K+ output from the other end of the pull-up resistor R1 can be used to indicate the target Schumann wave frequency determined by the first user input with an increased frequency. The second regulating submodule may include a pull-up resistor R2, an anti-shake filter capacitor C2 and a button S2, wherein one end of the pull-up resistor R2 is used to access the power supply voltage VCC of the second regulating submodule, the anti-shake filter capacitor C2 is connected in parallel with the button S2, the other end of the pull-up resistor R2 is electrically connected to one end of the anti-shake filter capacitor C2 and the button S2, the other end of the anti-shake filter capacitor C2 and the button S2 is grounded, and the electrical signal K- output from the other end of the pull-up resistor R2 can be used to indicate the target Schumann wave frequency determined by the first user input with a reduced frequency. The second adjustment module may include a pull-up resistor R3, an anti-shake filter capacitor C3 and a button S3, wherein one end of the pull-up resistor R3 is used to access the power supply voltage VCC of the second adjustment module, the anti-shake filter capacitor C3 and the button S3 are connected in parallel, the other end of the pull-up resistor R3 is electrically connected to the anti-shake filter capacitor C3 and one end of the button S3, the other end of the anti-shake filter capacitor C3 and the button S3 are grounded, and the electrical signal KEY output from the other end of the pull-up resistor R3 can be used to indicate the target gear strength determined according to the second user input.

[0069] Therefore, based on the circuit design of the above-mentioned adjustment module 16, the target user can increase the frequency of the generated Schumann wave according to the set unit frequency increment (e.g., 0.01 Hz) by clicking button S1. The target user can also reduce the frequency of the generated Schumann wave according to the set unit frequency increment (e.g., 0.01 Hz) by clicking button S2. The target user can also generate Schumann waves of different amplitudes or intensities (i.e., different intensity levels) by clicking button S3.

[0070] In addition, the target user can also quickly increase the frequency of the generated Schumann wave by long pressing the button S1, and quickly reduce the frequency of the generated Schumann wave by long pressing the button S2. In this way, the target user can reduce the single click operation of the button S1 or the button S2 when the frequency increment to be adjusted is large, thereby improving the operation experience of the target user.

[0071] In an alternative implementation, see Figure 4As shown, in order to ensure that a sinusoidal Schumann wave can be generated subsequently, the signal generator 11 may include: a control unit 111 and a digital-to-analog conversion unit 112 (or a digital-to-analog converter (DAC)). Among them, the control unit 111 can be used to generate a digital input sequence and a clock signal according to the target Schumann wave frequency. The digital-to-analog conversion unit 112 can be used to convert the digital input in the digital input sequence into an analog voltage output in sequence according to the clock signal to generate a first sinusoidal wave signal. Therefore, the first sinusoidal wave signal can also be referred to as a DAC signal generated by the digital-to-analog conversion unit 112. Exemplarily, the signal generator 11 can be a signal generating device such as a micro control unit (MCU), and the specific type of the signal generator 11 is not limited in the embodiment of the present application.

[0072] In order to isolate the mutual influence between the signal generator 11 and the specific circuit for voltage amplification of the first sine wave, that is, to prevent the interference of one circuit from being transmitted to another circuit, thereby improving the stability of the entire circuit. In an optional implementation, refer to Figure 5 As shown, the voltage amplification circuit 12 may include: an isolation module 121 and a voltage amplification module 122. The isolation module 121 may be used to perform voltage following on the first sinusoidal wave signal connected to the isolation module 121 to obtain a first sinusoidal wave signal after voltage following. The voltage amplification module 122 may be used to access the first sinusoidal wave signal after voltage following output by the isolation module 121, and perform voltage amplification on the first sinusoidal wave signal after voltage following according to a first control signal from the signal generator 11 to obtain a second sinusoidal wave signal.

[0073] The isolation module 121 may be specifically a voltage follower composed of a first operational amplifier. Figure 6 As shown in (a) in FIG. 1 , the isolation module 121 can be a voltage follower composed of an operational amplifier U1A (i.e., a first operational amplifier). Pin 3 (i.e., a first input terminal or a positive electrode) of the operational amplifier U1A can be used to access the first sinusoidal wave signal (i.e., a DAC signal) generated by the signal generator 11. Pin 2 (i.e., a second input terminal or a negative electrode) of the operational amplifier U1A and pin 1 (i.e., an output terminal) of the operational amplifier U1A are connected to form a voltage follower, thereby achieving isolation between the signal generator 11 and the voltage amplification module 122.

[0074] The voltage amplification module 122 may specifically include an amplification circuit consisting of a second operational amplifier, a first resistor, a second resistor, a third resistor and a first transistor, wherein the first resistor is a feedback resistor of the second operational amplifier, the second resistor is a basic reference resistor of the second operational amplifier, and the third resistor is a reserved reference resistor connected in parallel with the second resistor.

[0075] Still Figure 6 As shown in (a), pin 4 (i.e., the first input terminal or positive electrode) of the operational amplifier U1B (i.e., the second operational amplifier) ​​is used to access the first sinusoidal signal after the voltage output by pin 1 of the operational amplifier U1A, and pin 5 (i.e., the second input terminal or negative electrode) of U1B is connected to pin 6 (i.e., the output terminal) of the operational amplifier U1B through resistor R4 (i.e., the first resistor), and there are two parallel branches between resistor R4 and pin 5 of the operational amplifier U1B. The first branch is a circuit connected to ground through resistor R5 (i.e., the second resistor), and the second branch is a circuit connected to ground through resistor R6 (i.e., the third resistor) and transistor Q1 (i.e., the first transistor), wherein the emitter (i.e., the e-pole) of the transistor Q1 is used to ground, the collector (i.e., the c-pole) of the transistor Q1 is electrically connected to resistor R6, and the base (i.e., the b-pole) of the transistor Q1 is used to access the first control signal V_FD from the signal generator 11.

[0076] Exemplarily, both the operational amplifier U1A and the operational amplifier U1B may be LM358. Of course, they may also be other types of operational amplifiers, which are not specifically limited in the embodiments of the present application.

[0077] When the first control signal V_FD from the signal generator 11 is a low level signal, the transistor Q1 is not turned on. If it is assumed that the amplitude of the first sine wave signal connected to the pin 3 of the operational amplifier U1A is the same as the power supply VCC of the signal generator 11, for example, 3.3V. Then, if Figure 3 The voltage Vp1 at the P1 detection point is shown as V DAC ×(1+R4 / R5)=1.51×V DAC ≈4.98V. That is, at this time, the amplitude of the second sine wave signal obtained after the first sine wave signal passes through the voltage amplifier circuit 12 is 4.98V. When the first control signal V_FD from the signal generator 11 is a high-level signal, the transistor Q1 is turned on. Assuming that the amplitude of the first sine wave signal connected to the pin 3 of the operational amplifier U1A is 3.3V, then, Figure 3 The voltage Vp1 at the P1 detection point is shown as V DAC ×(1+R4 / (R5 / / R6))=2.92×V DAC ≈9.6V, where “ / / ” is the calculation of resistors in parallel. That is, at this time, the amplitude of the second sine wave signal obtained after the first sine wave signal passes through the voltage amplifier circuit 12 is 9.6V.

[0078] It should also be noted that if Figure 6The voltage amplifier circuit 12 shown in (a) may also include other electronic components or branches, which is not limited in the embodiments of the present application. For example, pin 3 of the operational amplifier U1A may also be grounded through capacitor C4, wherein capacitor C4 may filter out interference clutter in the first sinusoidal wave signal. For another example, the base of the transistor Q1 may also be connected to the first control signal V_FD of the signal generator 11 through resistor R7, and connected to the emitter of the transistor Q1 through resistor R8. Among them, resistor R7 is the driving current limiting resistor of the first control signal V_FD, and resistor R8 is the capacitor release loop resistor between the base and the emitter after the transistor Q1 is turned off.

[0079] In an alternative implementation, see Figure 7 As shown, the boost circuit 13 may include: an enabling module 131 and a boost module 132. The enabling module 131 may be used to access the power supply voltage provided by the power supply 17 and the enabling signal of the boost circuit 13. The aforementioned enabling signal may be used to determine whether to access the power supply voltage to the boost module 132. The boost module 132 may be used to generate a reference voltage after accessing the power supply voltage, and the amplifier circuit in the boost module 132 determined according to the second control signal may amplify the reference voltage to obtain a first voltage signal.

[0080] The enabling module 131 may include an enabling circuit composed of a field effect transistor and a second triode. Figure 8 As shown, the source (i.e., S pole) of the field effect transistor Q2 is used to access the power supply voltage VBAT provided by the power supply 17, the drain (i.e., D pole) of the field effect transistor Q2 is electrically connected to the boost module 132, and the gate (i.e., G pole) of the field effect transistor Q2 is electrically connected to the collector of the transistor Q3 (i.e., the second transistor). The base of the transistor Q3 is used to access the enable signal V_EN of the boost circuit 13, and the emitter of the transistor Q3 is grounded.

[0081] When the enable signal V_EN of the boost circuit 13 connected to the base of the transistor Q3 is a high-level signal, the field effect transistor Q2 and the transistor Q3 are turned on, indicating that the power supply voltage VBAT can be connected to the boost module 132; conversely, when the enable signal V_EN of the boost circuit 13 connected to the base of the transistor Q3 is a low-level signal, the field effect transistor Q2 and the transistor Q3 are not turned on, indicating that the power supply voltage VBAT cannot be connected to the boost module 132.

[0082] The boost module 132 may include a circuit consisting of a first inductor, a first diode, a reference voltage generating unit, a third transistor, a fourth resistor, a fifth resistor and a sixth resistor. One end of the first inductor is electrically connected to the output end of the enable module 131, the input pin of the reference voltage generating unit and the enable pin, respectively. The other end of the first inductor is electrically connected to the switch pin of the reference voltage generating unit and the positive electrode of the first diode, respectively. The cathode of the first diode is electrically connected to the feedback end of the reference voltage generating unit through the fourth resistor, and there are two parallel branches between the cathode of the first diode and the fourth resistor. The third branch is a circuit grounded through the fifth resistor, and the fourth branch is a branch grounded through the sixth resistor and the third transistor, wherein the collector of the third transistor is electrically connected to the sixth resistor, the base of the third transistor is used to access the second control signal from the signal generator 11, and the emitter of the third transistor is grounded.

[0083] Still Figure 8 As shown, one end of the inductor L1 (i.e., the first inductor) is electrically connected to the drain of the field effect tube Q2, the VIN pin (i.e., the input pin) and the EN pin (i.e., the enable pin) of the reference voltage generating unit U33. The other end of the inductor L1 is electrically connected to the SW pin (i.e., the switch pin) of the reference voltage generating unit U33 and the positive electrode of the diode D1 (i.e., the first diode). The cathode of the diode D1 is electrically connected to the FB pin (i.e., the feedback end) of the reference voltage generating unit U33 through the resistor R9 (i.e., the fourth resistor), and there are two parallel branches between the cathode of the diode D1 and the resistor R9. The third branch can be a circuit grounded through the resistor R10 (i.e., the fifth resistor), and the fourth branch can be a branch grounded through the resistor R11 (i.e., the sixth resistor) and the transistor Q4 (i.e., the third transistor). The collector of the transistor Q4 is electrically connected to the resistor R11 , the base of the transistor Q4 can be used to access the second control signal V_CH from the signal generator 11 , and the emitter of the transistor Q4 is grounded.

[0084] In addition, the voltage signal V_SM between the cathode of the diode D1 and the resistor R9 is also the first voltage signal.

[0085] Based on the above circuit structure design, when the enable signal V_EN of the boost circuit 13 is a high-level signal, the field effect transistor Q2 and the transistor Q3 are turned on, and the power supply voltage VBAT provided by the power supply 17 supplies power to the VIN terminal of the reference voltage generating unit U33, and the reference voltage generating unit U33 can be enabled at this time. If the reference voltage output by the FB pin of the reference voltage generating unit U33 is 0.6V, when the second control signal V_CH from the signal generator 11 is a low-level signal, the transistor Q4 is not turned on, and the first voltage signal generated by the boost module 132 can be determined according to the third branch corresponding to the resistor R9 and the resistor R10. Taking R9=75KΩ and R10=10KΩ as an example, the output voltage V of the boost module 132 is out =(1+R9 / R10)×0.6=5.1V, that is, the amplitude of the first voltage signal V_SM is 5.1V.

[0086] When the second control signal V_CH from the signal generator 11 is a high level signal, the transistor Q4 is turned on, and the first voltage signal generated by the boost module 132 can be determined according to the third branch corresponding to the resistor R9 and the resistor R10 and the fourth branch corresponding to the resistor R11. Taking R9 = 75K, R10 / / R11 = 5KΩ as an example, the output voltage V out =[1+R9 / (R10 / / R11)]×0.6=9.6V, that is, the amplitude of the first voltage signal V_SM is 9.6V.

[0087] Optional, Figure 8 The NC pins of the reference voltage generating unit U33 shown refer to unused pins, which are reserved in the chip package but are not connected to the internal circuit. The reference voltage generating unit U33 may also include a GND pin. Both the VIN pin and the EN pin may be connected to the GND pin via a capacitor C5, wherein the capacitor C5 is a power supply filter capacitor of the reference voltage generating unit U33.

[0088] Figure 8 The boost circuit 13 shown may also include other electronic components or branches, which are not limited in the embodiments of the present application. For example, the base of the transistor Q3 is connected to the enable signal V_EN of the boost module 132 through the resistor R12, and the base and emitter of the transistor Q3 are connected through the resistor R13. Among them, the resistor R12 is the driving current limiting resistor corresponding to the enable signal V_EN of the boost module 132, and the resistor R13 is the capacitor release loop resistor between the base and the emitter after Q3 is turned off.

[0089] For another example, the base of transistor Q4 is connected to the second control signal V_CH through resistor R14, and the emitter of transistor Q4 and the collector of transistor Q4 can be connected through resistor R15. Resistor R14 is a driving current limiting resistor corresponding to the second control signal V_CH, and resistor R15 is a capacitance release loop resistor between the base and the emitter after transistor Q4 is turned off.

[0090] Furthermore, there may be two energy storage filter circuits corresponding to the first voltage signal V_SM between the diode D1 and the resistor R9, corresponding to the energy storage filter capacitor C6 and the energy storage filter capacitor C7 respectively. The source of the field effect transistor Q2 may also be electrically connected to the gate of the field effect transistor Q2 through the resistor R16, and the resistor R16 may be a capacitor release loop resistor between the source and the gate of the field effect transistor Q2.

[0091] In an optional implementation, the drive control circuit 14 may include a multi-stage amplifier circuit composed of a plurality of current amplifiers, wherein each current amplifier may be used to amplify the current of a sine wave signal connected to a second input terminal (i.e., a sine wave signal output by a connected previous current amplifier) ​​according to a first voltage signal connected to a first input terminal.

[0092] See also Figure 6 As shown in (b) in FIG. 1 , the drive control circuit 14 may include a two-stage amplifier circuit consisting of a current amplifier Q5 and a current amplifier Q6. The collectors of the current amplifier Q5 and the current amplifier Q6 are both used to access the first voltage signal V_SM from the boost circuit 13. The base of the current amplifier Q5 is used to access the second sinusoidal wave signal generated by the voltage amplifier circuit 12, the emitter of the current amplifier Q5 is electrically connected to the base of the current amplifier Q6, and the emitter of the current amplifier Q6 is used to output the third sinusoidal wave signal obtained by current amplification by the current amplifier Q5 and the current amplifier Q6.

[0093] Optional, such as Figure 6 The drive control circuit shown in (b) may also include other electronic components or branches, which are not limited in the present application. For example, the base of the current amplifier Q5 is connected to the output end of the voltage amplifier circuit 12 through the capacitor C8, and the capacitor C8 is a DC blocking capacitor that can be used to filter out the DC signal in the second sine wave signal.

[0094] For another example, the base of the current amplifier Q5 and the collector of the current amplifier Q5 can be connected through a resistor R17, the emitter of the current amplifier Q5 is grounded through a resistor R18, and the emitter of the current amplifier Q6 is grounded through a resistor R19. Among them, the resistor R17 can be a pull-up clamping resistor, which can clamp the second sinusoidal wave signal output by the voltage amplifier circuit 12, the resistor R18 can be a load resistor of the current amplifier Q5, and the resistor R19 can be a load resistor of the current amplifier Q6.

[0095] It should also be noted that the above Figure 3 , Figure 6 and Figure 8 The sizes and types of the circuit components (such as capacitors, resistors and inductors, diodes, transistors, field effect transistors, etc.) are all examples and are not specifically limited in the embodiments of the present application.

[0096] In an optional implementation, Figure 6 As shown in (b), the Schumann wave generating module 15 may include an induction coil, which is used to perform electromagnetic induction on the third sinusoidal wave signal to generate the Schumann wave. It should be understood that the greater the current corresponding to the third sinusoidal wave signal, the greater the intensity of the generated Schumann wave; otherwise, the smaller the intensity.

[0097] In an optional implementation, Figure 2 As shown, the Schumann wave generating device may further include a display screen 18, which is electrically connected to the signal generator 11. The display screen 18 may be used to display the frequency and amplitude (or intensity) of the Schumann wave generated by the Schumann wave generating module 15, or the display screen 18 may be used to display the frequency and amplitude of the third sinusoidal wave signal output by the driving control circuit 14. The display screen 18 may be an organic light-emitting diode (OLED) display screen, or may be other types of display screens or display modules.

[0098] Exemplarily, the interface of the display screen 18 can be connected to the signal generator 11 through the OLED_SCL pin, the OLED_SDA pin, the OLED_RES pin, the OLED_DC pin and the OLED_CS pin. Among them, the OLED_SCL pin is used for the transmission of the clock signal. The OLED_SDA pin is used for the transmission of the data signal, that is, for transmitting data between the signal generator 11 and the display screen 18. The OLED_RES pin is a pin for reset (or low level reset). When the display screen 18 is initialized or the screen is cleared, the level of the OLED_RES pin needs to be pulled down (usually a low level, such as 0V) to reset the display screen 18 to ensure that the subsequent working state of the display screen 18 is normal. In addition, the display screen 18 should be reset before each initialization. The OLED_DC pin is a command / data selection port for the signal generator 11 to write commands or data to the display screen 18. For example, when the signal generator 11 needs to write a command to the display screen 18, the level of the OLED_DC pin will be pulled high (usually 1), and when the signal generator 11 needs to write data to the display screen 18, the level of the OLED_DC pin will be pulled low (usually 0). The OLED_CS pin is a chip select pin, which is used to control the communication between the display screen 18 and the signal generator 11. Specifically, before operating the display screen 18, it is necessary to first perform chip selection, that is, pull down the level of the OLED_CS pin to select the display screen 18. And after the operation is completed, it is necessary to pull up the level of the OLED_CS pin to perform other operations or select other display screens 18.

[0099] In this way, the target user can accurately know the frequency and amplitude (or intensity) of the Schumann wave (i.e., the target sine wave signal) generated by the Schumann wave generating device through the frequency value and amplitude (or intensity value) displayed on the display screen 18. In addition, the target user can also flexibly adjust the frequency and amplitude (or intensity) of the Schumann wave generated by the Schumann wave generating device according to his or her own feelings, so as to obtain the Schumann wave that can make people in the best state of relaxation.

[0100] In an optional implementation, Figure 2 As shown, the Schumann wave generating device may further include a voltage stabilizing circuit 19 provided between the power supply 17 and the signal generator 11. The voltage stabilizing circuit 19 may be used to stabilize the second voltage signal provided by the power supply 17 to the signal generator 11. Exemplarily, the voltage stabilizing circuit 19 may be an LDO chip circuit, and of course, may also be other types of voltage stabilizing circuits, which are not specifically limited in the embodiments of the present application.

[0101] In summary, in the Schumann wave generating device provided in the embodiment of the present application, since the signal generator can be used to generate a first sinusoidal wave signal of a target Schumann wave frequency, and generate a first control signal and a second control signal according to a target intensity level; the voltage amplification circuit can be used to perform voltage amplification on the first sinusoidal wave signal according to the first control signal to obtain a second sinusoidal wave signal; the boost circuit can be used to perform voltage amplification on the power supply voltage according to the second control signal to obtain a first voltage signal; the drive control circuit can be used to perform current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal; and the Schumann wave generation module can be used to generate a Schumann wave according to the third sinusoidal wave signal.

[0102] It can be seen that the Schumann wave generating device provided in the embodiment of the present application can generate a Schumann wave that is a sine wave that is the same as the actual Schumann wave and meets the user's needs (i.e., the target Schumann wave frequency and the target intensity level). Not only does it solve the problem that there is a large gap between the Schumann waves generated by the existing Schumann wave generating device and the actual Schumann waves, but it also achieves the adjustment of the intensity of the Schumann waves, thereby obtaining Schumann waves that better meet the needs of the target users. Therefore, when the Schumann waves generated by the Schumann wave generating device provided in the embodiment of the present application act on the human body, they can better improve the physiological state of the human body.

[0103] Further, based on the same technical concept, the embodiment of the present application also provides a control method for a Schumann wave generator, so as to ensure that the Schumann wave generator can generate a sine wave Schumann wave close to the actual Schumann wave, and the Schumann wave generated by the Schumann wave generator can be flexibly adjusted according to user needs. Fig. 9 As shown, it is a schematic diagram of the implementation flow of a control method for a Schumann wave generating device provided in an embodiment of the present application, and the execution subject is as follows Figure 2 Taking the Schumann wave generating device shown in the figure as an example, the specific implementation process of the method is as follows:

[0104] S901: In response to a Schumann wave generation instruction for a Schumann wave generating device, a first sinusoidal wave signal of a target Schumann wave frequency is generated, and a first control signal and a second control signal are generated according to a target intensity level.

[0105] The above-mentioned Schumann wave generation instruction can be used to indicate the frequency and intensity of the Schumann waves required by the target user.

[0106] In an optional implementation, when executing step S901, the Schumann wave generating device can respond to the first user input to the first adjustment module, thereby determining the target Schumann wave frequency according to the first user input, and then generating a first sinusoidal wave signal with a frequency of the target Schumann wave frequency through a signal generator.

[0107] Exemplarily, when determining the target Schumann wave frequency according to the first user input, the Schumann wave generating device may determine the target Schumann wave frequency according to a set unit frequency increment (e.g., 0.01 Hz) and a first frequency adjustment rate; or determine the target Schumann wave frequency according to the aforementioned set unit frequency increment (e.g., 0.01 Hz) and a second frequency adjustment rate. The aforementioned first frequency adjustment rate is less than the aforementioned second frequency adjustment rate.

[0108] If the first user input is to adjust the frequency of the Schumann wave generated by the Schumann wave generating device according to the set unit frequency increment and the first frequency adjustment rate, then the target user can click Figure 3 The button S1 shown in the figure increases the frequency of the Schumann wave generated by the Schumann wave generating device. At this time, the frequency of the Schumann wave displayed on the display screen will also increase from the default frequency value to the target Schumann wave frequency according to the set unit frequency increment and the number of times the target user clicks the button S1. For another example, the target user can click Figure 3 The button S2 shown in the figure reduces the frequency of the Schumann wave generated by the Schumann wave generating device. At this time, the frequency of the Schumann wave displayed on the display screen will also be reduced from the aforementioned default frequency value to the target Schumann wave frequency according to the set unit frequency increment and the number of times the target user clicks the button S2.

[0109] If the first user input is to adjust the frequency of the Schumann wave generated by the Schumann wave generating device according to the set unit frequency increment and the second frequency adjustment rate, then the target user can press and hold Figure 3 The button S1 shown in the figure increases the frequency of the Schumann wave generated by the Schumann wave generating device. At this time, the frequency of the Schumann wave displayed on the display screen will quickly increase from the default frequency value to the target Schumann wave frequency. For another example, the target user can press and hold Figure 3 The button S2 shown in the figure reduces the frequency of the Schumann wave generated by the Schumann wave generating device. At this time, the frequency of the Schumann wave displayed on the display screen will also quickly decrease from the aforementioned default frequency value to the target Schumann wave frequency.

[0110] In an optional implementation, when executing step S901, the Schumann wave generating device can also respond to the second user input to the second adjustment module, determine the target intensity level according to the second user input, thereby generating a first control signal and a second control signal according to the target intensity level, and further generating a Schumann wave corresponding to the target intensity level.

[0111] If the second user input is to adjust the Schumann wave intensity from the default Schumann wave intensity to the Schumann wave intensity corresponding to the target intensity level, then the target user can click at least once Figure 3The button S3 shown adjusts the sine wave signal (ie, Schumann wave) generated by the Schumann wave generating device from the aforementioned default Schumann wave intensity to the Schumann wave intensity corresponding to the target intensity level.

[0112] S902: Amplify the voltage of the first sine wave signal according to the first control signal to obtain a second sine wave signal, and amplify the voltage of the power supply voltage according to the second control signal to obtain a first voltage signal.

[0113] In an optional implementation, when executing step S902, the Schumann wave generating device can generate a reference voltage after determining that the boost module included in the boost circuit is connected to the power supply voltage, and then amplify the reference voltage according to the amplifier circuit in the boost module determined by the second control signal to obtain the first voltage signal.

[0114] S903: Perform current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal.

[0115] S904: Generate a Schumann wave according to the third sinusoidal wave signal.

[0116] Based on the control method of the Schumann wave generating device described in the above steps S901 to S904, the control method of the Schumann wave generating device can be realized by the control method of the Schumann wave generating device provided in the embodiment of the present application. Figure 2 The Schumann wave generating device shown implements the following control logic. Fig.10 As shown, the control logic is as follows:

[0117] S1001: Start.

[0118] S1002: Long press button S3 to turn on the device.

[0119] Specifically, the target user can long press the button S3 on the second adjustment module in the adjustment module to start the entire Schumann wave generating device to work.

[0120] S1003: Default Schumann wave signal gear: The default frequency value is 7.83Hz, and the default amplitude is 5V.

[0121] The above-mentioned default Schumann wave signal gear, that is, after the Schumann wave generating device is turned on, the Schumann wave generating device will generate the Schumann wave frequency and amplitude (or intensity) by default.

[0122] S1004: Is the target frequency value 7.83 Hz? If yes, go to S1007; if no, go to S1005a or S1005b.

[0123] The target frequency value mentioned above is also the frequency of the Schumann wave required by the target user or the target Schumann wave frequency.

[0124] S1005a: Single-click button S1 to increase the frequency by 0.01Hz, and long-press to increase it quickly.

[0125] Specifically, the target object can increase the frequency of the Schumann wave generated by the Schumann wave generating device by single-clicking or long-pressing the button S1 on the first regulating module (or the first regulating submodule) in the regulating module.

[0126] S1005b: Single-click button S2 to reduce the frequency by 0.01Hz, and long-press to reduce it quickly.

[0127] Specifically, the target object can click or long press the button S2 on the first regulating module (or the second regulating submodule) in the regulating module to reduce the frequency of the Schumann wave generated by the Schumann wave generating device.

[0128] It should be noted that the single-click operation in S1005a and / or S1005b can be one time or multiple times, and this application does not limit this. In addition, there is no specific limit on the execution order of S1005a and S1005b. S1005a can occur before S1005b, S1005a can also occur after S1005b, and S1005a and S1005b can also occur at the same time.

[0129] S1006: Display the frequency value as the target frequency value.

[0130] If the display frequency value on the display screen has not reached the target frequency value, the target user continues to execute the above S1005a or S1005b until the display frequency value reaches the target frequency value.

[0131] S1007: End.

[0132] S1008: Is the target amplitude 5V? If yes, go to S1011; if no, go to S1009.

[0133] S1009: Click button S3.

[0134] Specifically, the target user can adjust (increase or decrease) the amplitude or (intensity) of the Schumann wave generated by the Schumann wave generating device by clicking the button S3 on the first adjusting module in the adjusting module.

[0135] S1010: The displayed amplitude is the target amplitude.

[0136] If the displayed amplitude on the display screen has not reached the target frequency value, the target user continues to execute the above S1009 until the displayed frequency value reaches the target frequency value. Optionally, the number of operations of clicking the button S3 in S1009 can be determined according to the amplitude difference between the target amplitude (or target intensity) and the default amplitude (or default intensity).

[0137] S1011: End.

[0138] It should also be noted that there is no clear execution order between the method for adjusting the Schumann wave frequency value recorded in S1004 to S1007 and the method for adjusting the Schumann wave amplitude value recorded in S1008 to S1011, and the embodiment of the present application does not limit this.

[0139] Based on the control method described in steps S1001 to S1011, the Schumann wave generator can generate Schumann waves with a main frequency of about 7.83 Hz in nature, which is close to the alpha wave of the human brain. After reaching the human body, the sine wave Schumann wave can better improve the physiological state of the human body than the square wave Schumann wave generated by the existing Schumann wave generator.

[0140] In addition, the main frequency of the Schumann wave generated by the Schumann wave generating device can be flexibly adjusted according to user needs, thereby improving the user experience of the Schumann wave generating device.

[0141] Furthermore, it should be understood that what is disclosed above is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present application.

Claims

1. A Schumann wave generating device, characterized in that: include: A signal generator, used to generate a first sine wave signal of a target Schumann wave frequency, and to generate a first control signal and a second control signal according to a target intensity level; a voltage amplifying circuit, configured to amplify the voltage of the first sinusoidal wave signal according to the first control signal to obtain a second sinusoidal wave signal; a boost circuit, configured to amplify the power supply voltage according to the second control signal to obtain a first voltage signal; a drive control circuit, configured to amplify the current of the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal; The Schumann wave generating module is used to generate a Schumann wave according to the third sinusoidal wave signal.

2. The device according to claim 1, characterized in that The device further comprises: a first adjustment module and / or a second adjustment module; wherein, The first adjustment module is used to receive a first user input for setting the Schumann wave frequency, determine the target Schumann wave frequency according to the first user input, and send the target Schumann wave frequency to the signal generator; The second adjustment module is used to receive a second user input for setting the Schumann wave intensity, determine the target intensity level according to the second user input, and send the target intensity level to the signal generator.

3. The device according to claim 1 or 2, characterized in that The voltage amplification circuit includes: an isolation module and a voltage amplification module; wherein, The isolation module is used to perform voltage following on the first sinusoidal wave signal connected to the isolation module to obtain a first sinusoidal wave signal after voltage following; The voltage amplification module is used to access the first sinusoidal wave signal after the voltage is followed output by the isolation module, and perform voltage amplification on the first sinusoidal wave signal after the voltage is followed according to the first control signal to obtain the second sinusoidal wave signal.

4. The device according to claim 1 or 2, characterized in that The boost circuit comprises: an enabling module and a boost module; wherein, The enabling module is used to connect the power supply voltage and the enabling signal of the boosting circuit; the enabling signal is used to determine whether to connect the power supply voltage to the boosting module; The boost module is used to generate a reference voltage after being connected to the power supply voltage, and the amplifier circuit in the boost module determined by the second control signal amplifies the reference voltage to obtain the first voltage signal.

5. The device according to claim 1 or 2, characterized in that The drive control circuit includes a multi-stage amplifier circuit composed of a plurality of current amplifiers, wherein each current amplifier is used to amplify the current of the sinusoidal wave signal connected to the second input terminal according to the first voltage signal connected to the first input terminal.

6. The device according to claim 1 or 2, characterized in that: The Schumann wave generating module includes an induction coil, and the induction coil is used to perform electromagnetic induction on the third sinusoidal wave signal to generate the Schumann wave.

7. A method for controlling a Schumann wave generating device according to any one of claims 1 to 6, characterized in that: include: In response to a Schumann wave generation instruction for a Schumann wave generating device, a first sine wave signal of a target Schumann wave frequency is generated, and a first control signal and a second control signal are generated according to a target intensity level; amplifying the voltage of the first sine wave signal according to the first control signal to obtain a second sine wave signal, and amplifying the voltage of the power supply voltage according to the second control signal to obtain a first voltage signal; Performing current amplification on the second sinusoidal wave signal according to the first voltage signal to obtain a third sinusoidal wave signal; A Schumann wave is generated according to the third sinusoidal wave signal.

8. The method according to claim 7, characterized in that The step of generating a first sinusoidal wave signal of a target Schumann wave frequency comprises: In response to a first user input to a first adjustment module, determining the target Schumann wave frequency according to the first user input; The first sinusoidal wave signal of the target Schumann wave frequency is generated.

9. The method according to claim 7, characterized in that The generating of the first control signal and the second control signal according to the target intensity level comprises: In response to a second user input to a second adjustment module, determining the target intensity level according to the second user input; The first control signal and the second control signal are generated according to the target intensity level.

10. The method according to any one of claims 7 to 9, characterized in that The step of amplifying the power supply voltage according to the second control signal to obtain a first voltage signal includes: After determining that the boost module included in the boost circuit is connected to the power supply voltage, generating a reference voltage; The amplifier circuit in the boost module determined according to the second control signal amplifies the reference voltage to obtain the first voltage signal.

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