A system and method for converting a music or sound signal into a synchronously varying pulsed current

Abstract

This invention discloses a system and method for converting music or sound signals into synchronously changing pulsed currents. It belongs to the field of audio-to-electrical signal conversion technology. The system includes an MCU, an audio input module, an audio output module, an audio signal amplification module, a sound-to-electric conversion module, an isolation transformer, and a music electrical pulse output module. The main control MCU is connected to the audio input module, the music electrical pulse output module, the isolation transformer, and the audio signal amplification module. The audio input module is also connected to the audio output module, the audio signal amplification module is connected to the sound-to-electric conversion module, and the isolation transformer is connected to the music electrical pulse output module. This invention addresses the problem that existing music or sound electrotherapy methods are "superficially similar but lack the essential essence."

Description

Technical Field

[0001] This invention belongs to the field of audio-to-electrical signal conversion technology, specifically relating to a system and method for converting music or sound signals into synchronously changing pulse currents. Background Technology

[0002] With the development of physical rehabilitation medicine, electrostimulation therapy has been widely applied in areas such as muscle rehabilitation training, neurological function regulation, and pain relief. Meanwhile, music therapy, as an auxiliary psychological and physiological intervention, can influence brain electrical activity and emotional state through the auditory pathway. Combining music with electrostimulation to achieve synergistic "sound-electricity" intervention is an important development trend in current rehabilitation equipment.

[0003] Existing music or sound electrotherapy devices typically operate using preset waveforms. Specifically, the device stores several fixed pulse waveforms (such as square waves, sine waves, or triangle waves) internally. While music is played, these preset electrical pulses are triggered at fixed time intervals or according to a simple volume envelope. Furthermore, traditional transcutaneous electrical nerve stimulation (TENS) devices mostly use a single waveform with a fixed frequency and duty cycle; its parameters remain unchanged during treatment or are manually adjusted by the physician.

[0004] However, the aforementioned existing technologies have obvious limitations: The current waveform output by existing devices is often unrelated to the spectral components of the music itself, and is merely a simple follow of the intensity, resulting in a disconnect between the electrical stimulation rhythm felt by the patient and the auditory experience, making it impossible to achieve a deep "sound-electricity" coupling experience.

[0005] Traditional techniques often overlook the rich harmonic components in music or sound signals. Real musical instruments produce sounds containing a fundamental frequency and multiple harmonics, while existing devices mostly use single-frequency pulses, which cannot reproduce the complex physical characteristics of music, resulting in limited therapeutic effects.

[0006] Fixed pulse waveforms are difficult to match the physiological feedback needs of different individuals under different music segments, and cannot dynamically and accurately adjust the frequency, amplitude and waveform of the current according to the fluctuations of musical emotions (such as the strong and weak sounds of a symphony).

[0007] Therefore, there is an urgent need for a technical solution that can perform deep digital signal processing on audio signals, extract their frequency and amplitude characteristics in real time, and convert them into low-frequency pulse currents that change in complete synchronization with them, in order to solve the problem that existing music or sound electrotherapy is "similar in form but not in spirit". Summary of the Invention

[0008] This invention provides a system and method for converting music or sound signals into synchronously changing pulse currents, in order to solve the problem that existing music or sound electrotherapy is "similar in form but not in essence".

[0009] This invention is achieved through the following technical solution: A system for converting music or sound signals into synchronously changing pulse currents, the system comprising a main control MCU, an audio input module, an audio output module, an audio signal amplification module, a sound-to-electric conversion module, an isolation transformer, and a music electrical pulse output module; The main control MCU is connected to the audio input module, the music electrical pulse output module, the isolation transformer, and the audio signal amplification module, respectively. The audio input module is also connected to the audio output module, the audio signal amplification module is connected to the sound-to-electric conversion module, and the isolation transformer is connected to the music electrical pulse output module.

[0010] Furthermore, the MCU includes a chip U2, with terminal 1 of the chip U2 connected to the PWM+ terminal, terminal 10 of the chip U2 connected to the buzzer, terminal 30 of the chip U2 connected to the positive terminal of the isolation transformer, and terminal 30 of the chip U2 connected to the negative terminal of the isolation transformer. The 32nd pin of the chip U2 is connected to a key detection circuit with isolation function, and the key detection circuit is connected to the music signal conversion.

[0011] Furthermore, the key detection circuit with isolation function includes a resistor R197, with the operating voltage +5V1 connected to terminal 2 of the resistor R197, and terminal 1 of the resistor R197 connected to the key switch AU_SW and the optocoupler UB1 respectively. The second terminal of the optocoupler UB1 is connected to ground via a series resistor R204, the third terminal of the optocoupler UB1 is connected to ground via a series resistor R206, and the fourth terminal of the optocoupler UB1 is connected to ground via a series resistor 196.

[0012] Furthermore, the audio output module includes a working voltage of +5V1 connected to terminal 2 of resistor R190. Terminal 1 of resistor R190 is connected to terminal 2 of bidirectional diode TV15, terminal 2 of resistor R191 is connected to terminal T, terminal 1 of resistor R191 is connected to terminal 2 of ferrite bead B28 and terminal 2 of capacitor C169, terminal 1 of capacitor C169 is grounded, terminal 1 of ferrite bead B28 is connected to push-button switch AU_SW, terminal R is connected to terminal 2 of resistor R194, terminal 1 of resistor R194 is conveniently connected to terminal 1 of resistor R198, terminal 2 of bidirectional diode TV16 and terminal 2 of ferrite bead B30, and terminal 2 of resistor R198 is connected to terminal L. Terminal 1 of the magnetic bead B30 is connected to terminal AUD10; Terminal 1 of the bidirectional diode TV15 is grounded; Terminal 1 of the bidirectional diode TV16 is grounded.

[0013] Furthermore, the audio signal amplification module includes an AUD10 terminal connected to terminal 2 of resistor R200 and terminal 1 of resistor R193, with terminal 1 of resistor R200 grounded. Terminal 2 of capacitor C159 is connected to terminal 1 of capacitor C170, and terminal 2 of capacitor C170 is connected to terminal 3 of power amplifier integrated circuit U21. Terminal 2 of power amplifier integrated circuit U21 is connected to terminals 1 of capacitor C159 and terminal 1 of capacitor C160. After connection and grounding, terminal 2 of capacitor C159 is connected to terminal 2 of capacitor C160, terminal 6 of power amplifier integrated circuit U21, terminal 1 of power amplifier integrated circuit U21, terminal 8 of power amplifier integrated circuit U21, terminal 1 of capacitor C163, terminal 1 of resistor R189, and the operating voltage 5V1. Terminal 2 of resistor R189 is connected to terminal 2 of capacitor C163. Terminal 7 of power amplifier integrated circuit U21 is connected to ground after being connected in series with capacitor C172. Terminal 5 of the power amplifier integrated circuit U21 is connected to terminal 2 of resistor R195 and terminal 1 of capacitor C192. Terminal 1 of resistor R195 is connected to terminal 2 of capacitor C173, and terminal 1 of capacitor C173 is grounded. Terminal 2 of capacitor C192 is connected to terminal 2 of capacitor C186 and terminal 1 of surface mount bead B29, and terminal 1 of capacitor C186 is grounded. Terminal 2 of surface mount bead B29 is connected to terminal 2 of resistor R265 and terminal 1 of chip UA1, and terminal 1 of resistor R265 is grounded. Terminal 2 of chip UA1 is connected to ground after being connected in series with resistor R199. Terminal 3 of chip UA1 is grounded. Terminal 4 of chip UA1 is connected to terminal 1 of resistor R203 and terminal AU_IN.

[0014] Furthermore, the isolation transformer includes a working voltage of +5V1 connected to terminal 2 of capacitor C183, terminal 1 of capacitor CE18, and terminals 2 of diodes D31 and D33 respectively; terminal 1 of capacitor C183 is connected to terminal 2 of capacitor CE18, terminal 1 of diode D35, and terminal 1 of diode D36 respectively, and then grounded. Terminal 1 of diode D31 is connected to terminal 2 of diode D35 and terminal 4 of transformer T8, respectively; terminal 1 of diode D33 is connected to terminal 2 of diode D36 and terminal 5 of transformer T8, respectively. Terminal 1 of transformer T8 is connected to output port OUT1 and terminal 2 of capacitor C224 respectively; terminal 3 of transformer T8 is connected to output port OUT2 and terminal 1 of capacitor C224 respectively. The operating voltage +5V is connected to terminal 2 of capacitor C71 and terminal 1 of driver chip U19. Terminal 1 of capacitor C71 is grounded. Terminal 2 of driver chip U19 is connected to the output port OUT1 of the half-wave rectifier and filter circuit. Terminal 3 of driver chip U19 is connected to the output port OUT2 of the half-wave rectifier and filter circuit. Terminal 7 of driver chip U19 is connected to terminal 8 of driver chip U19 and the operating voltage +5V. Terminal 6 of driver chip U19 is connected to the PWMx terminal and terminal 2 of resistor R232. Terminal 1 of resistor R232 is grounded. Terminal 5 of driver chip U19 is connected to terminal 2 of resistor R266 and terminal 2 of resistor R234. Terminal 1 of resistor R266 is connected to AU_TEST. Terminal 1 of resistor R234 is grounded. Terminal 4 and terminal 9 of the driver chip U19 are respectively grounded.

[0015] Furthermore, the music electrical pulse output module includes a +15V1 connected to terminal 1 of inductor IND_08058, terminal 2 of inductor IND_08058 connected to terminal 1 of capacitor CE10, terminal 2 of capacitor C91, terminal 2 of capacitor C92 and terminal C of transistor group VD11, and terminal 2 of capacitor CE10 connected to terminal 1 of capacitor C91 and terminal 1 of capacitor C92. The B terminal of the transistor group VD11 is connected to terminal 2 of resistor R103 and terminal 1 of resistor R288, respectively. Terminal 2 of resistor R288 is grounded. Terminal 1 of resistor R103 is connected to terminal 7 of operational amplifier U9B, terminal 2 of resistor R117, and terminal 2 of capacitor C103, respectively. The other end of resistor R117 is connected to terminal 1 of capacitor C103 and terminal 2 of resistor R123, respectively. Terminal 5 of operational amplifier U9B is connected to terminal 2 of resistor R101 and terminal 2 of capacitor C101, respectively. Terminal 1 of capacitor C101 is connected to terminal 1 of resistor R123 and then grounded. Terminal 1 of resistor R101 is connected to PWM. The E terminal of transistor group VD11 is connected to terminal 2 of resistor R118, terminal 2 of capacitor C102, terminal 1 of resistor R107, terminal 2 of resistor R119, the E terminal of transistor V16, and the E terminal of transistor V17. Terminal 1 of resistor R118 is connected to terminal 1 of capacitor C102 and then grounded. Terminal 2 of resistor R107 is connected to terminal 2 of resistor R120 and terminal B of transistor V16. Terminal 1 of resistor R119 is connected to terminal 1 of resistor R108 and terminal B of transistor V17. The collector (C) terminal of transistor V16 is connected to terminal 2 of resistor R108, terminal 2 of capacitor C100, terminal C of transistor group VD10, and terminal 1 of inductor T4, respectively. The collector (C) terminal of transistor V17 is connected to terminal 1 of resistor R120, terminal 1 of capacitor C100, terminal C of transistor group VD12, and terminal 3 of inductor T4, respectively. The base (B) of transistor group VD10 is connected to terminals 1 of resistors R98 and R100, respectively. Terminal 2 of resistor R100 is connected to PWM_2-. Terminal 2 of resistor R98 is connected to the collector (C) of transistor group VD10 and then grounded. The base (B) of transistor group VD12 is connected to terminals 1 of resistor R124 and R126, respectively. Terminal 2 of resistor R124 is connected to PWM_2+. Terminal 1 of resistor R126 is connected to the emitter (E) of transistor group VD12 and then grounded. Terminal 5 of inductor T4 is connected to terminal 2 of capacitor C99, terminal 2 of resistor R113, and MD1, respectively. Terminal 4 of inductor T4 is connected to terminal 1 of resistor R116, terminal 1 of resistor R113, terminal 2 of diode D17, terminal 1 of diode D16, and terminal 2 of optocoupler chip U13, respectively. Terminal 1 of capacitor C99 is connected to terminal 2 of resistor R116. Terminal 1 of diode D17 is connected to terminal 2 of diode D15. Terminal 1 of diode D15 is connected to terminal 2 of diode D14. Terminal 1 of diode D14 is connected to terminal 2 of resistor R112 and terminal 2 of diode D16. Terminal 1 of resistor R112 is connected to terminal 1 of optocoupler chip U13. Terminal 3 of optocoupler chip U13 is connected to terminal 2 of resistor R127 and terminal B of transistor V18. Terminal 1 of resistor R127 is connected to terminal E of transistor V18 and then grounded. Terminal 4 of optocoupler chip U13 is connected to terminal 1 of resistor R110. Terminal 2 of resistor R110 is connected to terminal 2 of resistor R111 and the operating voltage +5V. Terminal 1 of resistor R111 is connected to terminal C of transistor V18 and terminal 2 of resistor R121.

[0016] A method for converting music or sound signals into synchronously changing pulse currents, characterized in that the control method uses a system for converting music or sound signals into synchronously changing pulse currents as described above, and the method includes the following steps: Step 1: Audio signal acquisition domain input. The audio signal is received by the internal circuit and an audio judgment signal is generated for system monitoring. Step 2: Analog-to-digital conversion and digital signal processing; Step 3: Music synchronization pulse modulation; Step 4: PWM signal output and electrical pulse generation; Step 5: Output of electrical pulses.

[0017] Furthermore, step 3 specifically involves: Obtain the voltage value of the music signal acquisition; Processing music signals; Perform precision processing on music signals; Calculate the level of the control pulse output using ElePWMData.Max; Perform precision processing on music signals; The turnaround ratio for converting music data to PWM is 0-1200, where 1200 is the total PWM pulse width modulation.

[0018] A system for converting music or sound signals into synchronously changing pulsed currents, applicable to devices or systems for converting music signals into synchronously changing pulsed electrical signals, and applicable to devices or systems for converting Chinese language into synchronously changing pulsed electrical signals.

[0019] The beneficial effects of this invention are: Because music or sound is ever-changing, each pulse current of this invention becomes a new stimulus source, making it difficult for the body to adapt and maintain a stable stimulus source.

[0020] This invention converts the low-frequency portion into an electrical signal that can activate neuromuscular tissue and promote local blood circulation; while the high-frequency portion is converted into an electrical signal that penetrates deeper, which helps relieve deep tissue pain.

[0021] This invention allows the human body to experience electrical signal stimulation while listening to music or sound, resulting in better overall comfort. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the system block diagram of the present invention.

[0023] Figure 2 This is the schematic diagram of the MCU of this invention.

[0024] Figure 3 This is a schematic diagram of the electrical pulse generation circuit of the present invention.

[0025] Figure 4 This is a schematic diagram of the music or sound source input and output of the present invention.

[0026] Figure 5 This is a schematic diagram of the key detection circuit with isolation function of the present invention.

[0027] Figure 6 This is a schematic diagram of the music or sound signal conversion circuit of the present invention.

[0028] Figure 7 This is a schematic diagram of the audio signal amplification and conversion circuit of the present invention.

[0029] Figure 8 This is a schematic diagram of the audio signal isolation circuit of the present invention.

[0030] Figure 9 This is a schematic diagram of the DC motor drive circuit of the present invention.

[0031] Figure 10 This is a schematic diagram of the C language program programming of the present invention. Detailed Implementation

[0032] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0033] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0034] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0035] The following is in conjunction with the appendix to this application specification. Figure 1-8The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] Implementation Method 1 This embodiment provides a system for converting music or sound signals into synchronously changing pulse currents. The system includes an MCU, an audio input module, an audio output module, an audio signal amplification module, a sound-to-electric conversion module, an isolation transformer, and a music electrical pulse output module. The MCU is connected to the audio input module, the music electrical pulse output module, and the isolation transformer, respectively. The audio input module is also connected to the audio output module and the audio signal amplification module. The audio signal amplification module is connected to the sound-to-electric conversion module, and the sound-to-electric conversion module is connected to the isolation transformer. The MCU is used to determine the audio input and convert the acquired music signal into a synchronously changing pulse waveform; The audio input module is used to provide music sources to the MCU, including but not limited to mobile phones; The audio output module is used to provide a wired headphone jack so that the wearer can listen to music simultaneously; The audio signal amplification module is used to amplify, filter, compare, and buffer weak electrical signals. The isolation transformer is used for power isolation of audio signals; The sound-to-electric conversion module is used to convert sound signals (sound waves) into electrical signals, which serve as the basic input for subsequent circuit processing, amplification, analysis, or control. The music electrical pulse output module is used to generate synchronously changing pulse currents by converting the pulse waveform characteristic parameters stored in the MCU through a signal converter.

[0038] Furthermore, the MCU includes a chip U2, with terminal 1 of the chip U2 connected to the PWM+ terminal, terminal 10 of the chip U2 connected to the buzzer, terminal 30 of the chip U2 connected to the positive terminal of the isolation transformer, and terminal 30 of the chip U2 connected to the negative terminal of the isolation transformer. The 32nd pin of the chip U2 is connected to a key detection circuit with isolation function, and the key detection circuit is connected to a music signal conversion circuit.

[0039] Furthermore, the key detection circuit with isolation function includes a resistor R197, with the operating voltage +5V1 connected to terminal 2 of the resistor R197, and terminal 1 of the resistor R197 connected to the key switch AU_SW and the optocoupler UB1 respectively. The second terminal of the optocoupler UB1 is connected to ground via a series resistor R204, the third terminal of the optocoupler UB1 is connected to ground via a series resistor R206, and the fourth terminal of the optocoupler UB1 is connected to ground via a series resistor 196.

[0040] Furthermore, the audio output module includes a working voltage of +5V1 connected to terminal 2 of resistor R190. Terminal 1 of resistor R190 is connected to terminal 2 of bidirectional diode TV15, terminal 2 of resistor R191 is connected to terminal T, terminal 1 of resistor R191 is connected to terminal 2 of ferrite bead B28 and terminal 2 of capacitor C169, terminal 1 of capacitor C169 is grounded, terminal 1 of ferrite bead B28 is connected to push-button switch AU_SW, terminal R is connected to terminal 2 of resistor R194, terminal 1 of resistor R194 is conveniently connected to terminal 1 of resistor R198, terminal 2 of bidirectional diode TV16 and terminal 2 of ferrite bead B30, and terminal 2 of resistor R198 is connected to terminal L. Terminal 1 of the magnetic bead B30 is connected to terminal AUD10; Terminal 1 of the bidirectional diode TV15 is grounded; Terminal 1 of the bidirectional diode TV16 is grounded.

[0041] Terminal 1 of resistor R194 is connected to terminal 1 of resistor R198.

[0042] Furthermore, the input audio signal is amplified using analog amplification technology and a signal isolation circuit is built to effectively meet the requirements of GB 9706.1-2020 "Medical electrical equipment - Part 1: General requirements for basic safety and basic performance" and YY9706.102-2021 "Medical electrical equipment - Part 1-2: General requirements for basic safety and basic performance" and convert the audio signal into an analog signal that is easy for the MCU to process. The audio signal amplification module includes an AUD10 terminal connected to terminal 2 of resistor R200 and terminal 1 of resistor R193, with terminal 1 of resistor R200 grounded. Terminal 2 of capacitor C159 is connected to terminal 1 of capacitor C170, and terminal 2 of capacitor C170 is connected to terminal 3 of power amplifier integrated circuit U21. Terminal 2 of power amplifier integrated circuit U21 is then connected to terminals 1 of capacitor C159 and terminal 1 of capacitor C160. The circuit is grounded. Terminal 2 of capacitor C159 is connected to terminal 2 of capacitor C160, terminal 6 of power amplifier integrated circuit U21, terminal 1 of power amplifier integrated circuit U21, terminal 8 of power amplifier integrated circuit U21, terminal 1 of capacitor C163, terminal 1 of resistor R189, and the operating voltage 5V1. Terminal 2 of resistor R189 is connected to terminal 2 of capacitor C163. Terminal 7 of power amplifier integrated circuit U21 is connected to ground after being connected in series with capacitor C172. Terminal 5 of the power amplifier integrated circuit U21 is connected to terminal 2 of resistor R195 and terminal 1 of capacitor C192. Terminal 1 of resistor R195 is connected to terminal 2 of capacitor C173, and terminal 1 of capacitor C173 is grounded. Terminal 2 of capacitor C192 is connected to terminal 2 of capacitor C186 and terminal 1 of surface mount bead B29, and terminal 1 of capacitor C186 is grounded. Terminal 2 of surface mount bead B29 is connected to terminal 2 of resistor R265 and terminal 1 of chip UA1, and terminal 1 of resistor R265 is grounded. Terminal 2 of chip UA1 is connected to ground after being connected in series with resistor R199. Terminal 3 of chip UA1 is grounded. Terminal 4 of chip UA1 is connected to terminal 1 of resistor R203 and terminal AU_IN.

[0043] Furthermore, such as Figure 8 As shown, the isolation transformer includes a working voltage of +5V1 connected to terminal 2 of capacitor C183, terminal 1 of capacitor CE18, and terminals 2 of diodes D31 and D33 respectively; terminal 1 of capacitor C183 is connected to terminal 2 of capacitor CE18, terminal 1 of diode D35, and terminal 1 of diode D36 respectively, and then grounded. Terminal 1 of diode D31 is connected to terminal 2 of diode D35 and terminal 4 of transformer T8, respectively; terminal 1 of diode D33 is connected to terminal 2 of diode D36 and terminal 5 of transformer T8, respectively. Terminal 1 of transformer T8 is connected to output port OUT1 and terminal 2 of capacitor C224 respectively; terminal 3 of transformer T8 is connected to output port OUT2 and terminal 1 of capacitor C224 respectively. like Figure 9As shown, the operating voltage +5V is connected to terminal 2 of capacitor C71 and terminal 1 of driver chip U19, respectively. Terminal 1 of capacitor C71 is grounded. Terminal 2 of driver chip U19 is connected to the output port OUT1 of the half-wave rectifier and filter circuit. Terminal 3 of driver chip U19 is connected to the output port OUT2 of the half-wave rectifier and filter circuit. Terminal 7 of driver chip U19 is connected to terminal 8 of driver chip U19 and the operating voltage +5V. Terminal 6 of driver chip U19 is connected to the PWMx terminal and terminal 2 of resistor R232, respectively. Terminal 1 of resistor R232 is grounded. Terminal 5 of driver chip U19 is connected to terminal 2 of resistor R266 and terminal 2 of resistor R234, respectively. Terminal 1 of resistor R266 is connected to AU_TEST, and terminal 1 of resistor R234 is grounded. Terminal 4 and terminal 9 of the driver chip U19 are respectively grounded.

[0044] Furthermore, the music electrical pulse output module includes a +15V1 connected to terminal 1 of inductor IND_08058, terminal 2 of inductor IND_08058 connected to terminal 1 of capacitor CE10, terminal 2 of capacitor C91, terminal 2 of capacitor C92 and terminal C of transistor group VD11, and terminal 2 of capacitor CE10 connected to terminal 1 of capacitor C91 and terminal 1 of capacitor C92. The B terminal of the transistor group VD11 is connected to terminal 2 of resistor R103 and terminal 1 of resistor R288, respectively. Terminal 2 of resistor R288 is grounded. Terminal 1 of resistor R103 is connected to terminal 7 of operational amplifier U9B, terminal 2 of resistor R117, and terminal 2 of capacitor C103, respectively. The other end of resistor R117 is connected to terminal 1 of capacitor C103 and terminal 2 of resistor R123, respectively. Terminal 5 of operational amplifier U9B is connected to terminal 2 of resistor R101 and terminal 2 of capacitor C101, respectively. Terminal 1 of capacitor C101 is connected to terminal 1 of resistor R123 and then grounded. Terminal 1 of resistor R101 is connected to PWM. The E terminal of transistor group VD11 is connected to terminal 2 of resistor R118, terminal 2 of capacitor C102, terminal 1 of resistor R107, terminal 2 of resistor R119, the E terminal of transistor V16, and the E terminal of transistor V17. Terminal 1 of resistor R118 is connected to terminal 1 of capacitor C102 and then grounded. Terminal 2 of resistor R107 is connected to terminal 2 of resistor R120 and terminal B of transistor V16. Terminal 1 of resistor R119 is connected to terminal 1 of resistor R108 and terminal B of transistor V17. The collector (C) terminal of transistor V16 is connected to terminal 2 of resistor R108, terminal 2 of capacitor C100, terminal C of transistor group VD10, and terminal 1 of inductor T4, respectively. The collector (C) terminal of transistor V17 is connected to terminal 1 of resistor R120, terminal 1 of capacitor C100, terminal C of transistor group VD12, and terminal 3 of inductor T4, respectively. The base (B) of transistor group VD10 is connected to terminals 1 of resistors R98 and R100, respectively. Terminal 2 of resistor R100 is connected to PWM_2-. Terminal 2 of resistor R98 is connected to the collector (C) of transistor group VD10 and then grounded. The base (B) of transistor group VD12 is connected to terminals 1 of resistor R124 and R126, respectively. Terminal 2 of resistor R124 is connected to PWM_2+. Terminal 1 of resistor R126 is connected to the emitter (E) of transistor group VD12 and then grounded. Terminal 5 of inductor T4 is connected to terminal 2 of capacitor C99, terminal 2 of resistor R113, and MD1, respectively. Terminal 4 of inductor T4 is connected to terminal 1 of resistor R116, terminal 1 of resistor R113, terminal 2 of diode D17, terminal 1 of diode D16, and terminal 2 of optocoupler chip U13, respectively. Terminal 1 of capacitor C99 is connected to terminal 2 of resistor R116. Terminal 1 of diode D17 is connected to terminal 2 of diode D15. Terminal 1 of diode D15 is connected to terminal 2 of diode D14. Terminal 1 of diode D14 is connected to terminal 2 of resistor R112 and terminal 2 of diode D16. Terminal 1 of resistor R112 is connected to terminal 1 of optocoupler chip U13. Terminal 3 of optocoupler chip U13 is connected to terminal 2 of resistor R127 and terminal B of transistor V18. Terminal 1 of resistor R127 is connected to terminal E of transistor V18 and then grounded. Terminal 4 of optocoupler chip U13 is connected to terminal 1 of resistor R110. Terminal 2 of resistor R110 is connected to terminal 2 of resistor R111 and the operating voltage +5V. Terminal 1 of resistor R111 is connected to terminal C of transistor V18 and terminal 2 of resistor R121.

[0045] The working principle involves decomposing audio signals (music) into harmonic components of different frequencies using digital signal processing technology, and converting them into low-frequency pulsed currents synchronized with them. This is the key difference between music-based electrical pulses and traditional fixed-waveform electrotherapy. The frequency, amplitude (intensity), and waveform of the current change in real time with the fluctuations of the music. For example, the loud parts of a symphony trigger higher-intensity current stimulation, while gentle melodies correspond to lower-intensity stimulation.

[0046] Implementation Method 2 This embodiment provides a method for converting music or sound signals into synchronously changing pulse currents. The control method uses a system for converting music or sound signals into synchronously changing pulse currents as described in Embodiment 1. The method includes the following steps: Step 1: Audio signal acquisition input. Select a piece of music with a suitable melody and rhythm as the original audio source. Connect the input and output sources to the machine. Through internal circuitry, an audio signal and an audio judgment signal are output. The audio signal receives the input audio signal through the internal circuitry and generates an audio judgment signal for system monitoring. Step 2: Analog-to-digital conversion and digital signal processing; Step 3: Music synchronization pulse modulation; The audio electrical signal is input to the ADC pin of the MCU. The ADC converts the audio electrical signal into a digital signal Vsamp, which is mainly converted into a synchronous pulse electrical signal through a program algorithm. The changes in the intensity of the music correspond to fluctuations in the current intensity; for example, a high amplitude current is output during climax sections, while the intensity is reduced during gentler sections. Program algorithm: Use Vsamp as the duty cycle to perform pulse width modulation of the pulse amplitude, and the pulse frequency can be set to (4-20)KHz.

[0047] Pulse amplitude duty cycle: Duty = (Vsamp) * k; k is a coefficient that can be adjusted according to the actual situation.

[0048] Step 4: PWM signal output and electrical pulse generation; Step 5: Output of electrical pulses.

[0049] Furthermore, step 3 specifically involves: Obtain the voltage value of the music signal acquisition; Process the music signal (reduce or amplify it); Perform precision processing on music signals; Calculate the level of the control pulse output using ElePWMData.Max; Perform precision processing on music signals; The turnaround ratio for converting music data to PWM is 0-1200, where 1200 is the total PWM pulse width modulation.

[0050] Implementation Method 3 This embodiment provides a system for converting music or sound signals into synchronously changing pulsed currents, applicable to devices or systems for converting music or sound signals into synchronously changing pulsed electrical signals, and applicable to far-infrared magnetic electric pulse therapy devices.

Claims

1. A system for converting a music or sound signal into a synchronously varying pulsed current system, characterized by, The system includes an MCU, an audio input module, an audio output module, an audio signal amplification module, a sound-to-electric conversion module, an isolation transformer, and a music electrical pulse output module; The main control MCU is connected to the audio input module, the music electrical pulse output module, the isolation transformer, and the audio signal amplification module, respectively. The audio input module is also connected to the audio output module, the audio signal amplification module is connected to the sound-to-electric conversion module, and the isolation transformer is connected to the music electrical pulse output module.

2. The pulsed current system of claim 1, wherein, The MCU includes a chip U2, with terminal 1 of the chip U2 connected to the PWM+ terminal, terminal 10 of the chip U2 connected to the buzzer, terminal 30 of the chip U2 connected to the positive terminal of the isolation transformer, and terminal 30 of the chip U2 connected to the negative terminal of the isolation transformer. The 32nd pin of the chip U2 is connected to a key detection circuit with isolation function, and the key detection circuit is connected to the music signal conversion.

3. The pulsed current system of claim 2, wherein, The key detection circuit with isolation function includes a resistor R197, with a working voltage of +5V1 connected to terminal 2 of the resistor R197. Terminal 1 of the resistor R197 is connected to both the key switch AU_SW and the optocoupler UB1. The second terminal of the optocoupler UB1 is connected to ground via a series resistor R204, the third terminal of the optocoupler UB1 is connected to ground via a series resistor R206, and the fourth terminal of the optocoupler UB1 is connected to ground via a series resistor 196.

4. The pulse current system according to claim 2, characterized in that, The audio output module includes a working voltage of +5V1 connected to terminal 2 of resistor R190. Terminal 1 of resistor R190 is connected to terminal 2 of bidirectional diode TV15, terminal 2 of resistor R191 is connected to terminal T, terminal 1 of resistor R191 is connected to terminal 2 of ferrite bead B28 and terminal 2 of capacitor C169, terminal 1 of capacitor C169 is grounded, terminal 1 of ferrite bead B28 is connected to push-button switch AU_SW, terminal R is connected to terminal 2 of resistor R194, terminal 1 of resistor R194 is conveniently connected to terminal 1 of resistor R198, terminal 2 of bidirectional diode TV16 and terminal 2 of ferrite bead B30, and terminal 2 of resistor R198 is connected to terminal L. Terminal 1 of the magnetic bead B30 is connected to terminal AUD10; Terminal 1 of the bidirectional diode TV15 is grounded; Terminal 1 of the bidirectional diode TV16 is grounded.

5. The pulsed current system of claim 2, wherein, The audio signal amplification module includes an AUD10 terminal connected to terminal 2 of resistor R200 and terminal 1 of resistor R193, with terminal 1 of resistor R200 grounded. Terminal 2 of capacitor C159 is connected to terminal 1 of capacitor C170, and terminal 2 of capacitor C170 is connected to terminal 3 of power amplifier integrated circuit U21. Terminal 2 of power amplifier integrated circuit U21 is then connected to terminals 1 of capacitor C159 and terminal 1 of capacitor C160. The circuit is grounded. Terminal 2 of capacitor C159 is connected to terminal 2 of capacitor C160, terminal 6 of power amplifier integrated circuit U21, terminal 1 of power amplifier integrated circuit U21, terminal 8 of power amplifier integrated circuit U21, terminal 1 of capacitor C163, terminal 1 of resistor R189, and the operating voltage 5V1. Terminal 2 of resistor R189 is connected to terminal 2 of capacitor C163. Terminal 7 of power amplifier integrated circuit U21 is connected to ground after being connected in series with capacitor C172. Terminal 5 of the power amplifier integrated circuit U21 is connected to terminal 2 of resistor R195 and terminal 1 of capacitor C192. Terminal 1 of resistor R195 is connected to terminal 2 of capacitor C173, and terminal 1 of capacitor C173 is grounded. Terminal 2 of capacitor C192 is connected to terminal 2 of capacitor C186 and terminal 1 of surface mount bead B29, and terminal 1 of capacitor C186 is grounded. Terminal 2 of surface mount bead B29 is connected to terminal 2 of resistor R265 and terminal 1 of chip UA1, and terminal 1 of resistor R265 is grounded. Terminal 2 of chip UA1 is connected to ground after being connected in series with resistor R199. Terminal 3 of chip UA1 is grounded. Terminal 4 of chip UA1 is connected to terminal 1 of resistor R203 and terminal AU_IN.

6. The pulsed current system of claim 2, wherein, The isolation transformer includes a working voltage of +5V1 connected to terminal 2 of capacitor C183, terminal 1 of capacitor CE18, and terminals 2 of diodes D31 and D33 respectively; terminal 1 of capacitor C183 is connected to terminal 2 of capacitor CE18, terminal 1 of diode D35, and terminal 1 of diode D36 respectively, and then grounded. Terminal 1 of diode D31 is connected to terminal 2 of diode D35 and terminal 4 of transformer T8, respectively; terminal 1 of diode D33 is connected to terminal 2 of diode D36 and terminal 5 of transformer T8, respectively. Terminal 1 of transformer T8 is connected to output port OUT1 and terminal 2 of capacitor C224 respectively; terminal 3 of transformer T8 is connected to output port OUT2 and terminal 1 of capacitor C224 respectively. The operating voltage +5V is connected to terminal 2 of capacitor C71 and terminal 1 of driver chip U19. Terminal 1 of capacitor C71 is grounded. Terminal 2 of driver chip U19 is connected to the output port OUT1 of the half-wave rectifier and filter circuit. Terminal 3 of driver chip U19 is connected to the output port OUT2 of the half-wave rectifier and filter circuit. Terminal 7 of driver chip U19 is connected to terminal 8 of driver chip U19 and the operating voltage +5V. Terminal 6 of driver chip U19 is connected to the PWMx terminal and terminal 2 of resistor R232. Terminal 1 of resistor R232 is grounded. Terminal 5 of driver chip U19 is connected to terminal 2 of resistor R266 and terminal 2 of resistor R234. Terminal 1 of resistor R266 is connected to AU_TEST. Terminal 1 of resistor R234 is grounded. Terminal 4 and terminal 9 of the driver chip U19 are respectively grounded.

7. The pulsed current system of claim 2, wherein, The music electrical pulse output module includes a +15V1 connected to terminal 1 of inductor IND_08058. Terminal 2 of inductor IND_08058 is connected to terminal 1 of capacitor CE10, terminal 2 of capacitor C91, terminal 2 of capacitor C92, and terminal C of transistor group VD11. Terminal 2 of capacitor CE10 is connected to terminal 1 of capacitor C91 and terminal 1 of capacitor C92. The B terminal of the transistor group VD11 is connected to terminal 2 of resistor R103 and terminal 1 of resistor R288, respectively. Terminal 2 of resistor R288 is grounded. Terminal 1 of resistor R103 is connected to terminal 7 of operational amplifier U9B, terminal 2 of resistor R117, and terminal 2 of capacitor C103, respectively. The other end of resistor R117 is connected to terminal 1 of capacitor C103 and terminal 2 of resistor R123, respectively. Terminal 5 of operational amplifier U9B is connected to terminal 2 of resistor R101 and terminal 2 of capacitor C101, respectively. Terminal 1 of capacitor C101 is connected to terminal 1 of resistor R123 and then grounded. Terminal 1 of resistor R101 is connected to PWM. The E terminal of transistor group VD11 is connected to terminal 2 of resistor R118, terminal 2 of capacitor C102, terminal 1 of resistor R107, terminal 2 of resistor R119, the E terminal of transistor V16, and the E terminal of transistor V17. Terminal 1 of resistor R118 is connected to terminal 1 of capacitor C102 and then grounded. Terminal 2 of resistor R107 is connected to terminal 2 of resistor R120 and terminal B of transistor V16. Terminal 1 of resistor R119 is connected to terminal 1 of resistor R108 and terminal B of transistor V17. The collector (C) terminal of transistor V16 is connected to terminal 2 of resistor R108, terminal 2 of capacitor C100, terminal C of transistor group VD10, and terminal 1 of inductor T4, respectively. The collector (C) terminal of transistor V17 is connected to terminal 1 of resistor R120, terminal 1 of capacitor C100, terminal C of transistor group VD12, and terminal 3 of inductor T4, respectively. The base (B) of transistor group VD10 is connected to terminals 1 of resistors R98 and R100, respectively. Terminal 2 of resistor R100 is connected to PWM_2-. Terminal 2 of resistor R98 is connected to the collector (C) of transistor group VD10 and then grounded. The base (B) of transistor group VD12 is connected to terminals 1 of resistor R124 and R126, respectively. Terminal 2 of resistor R124 is connected to PWM_2+. Terminal 1 of resistor R126 is connected to the emitter (E) of transistor group VD12 and then grounded. Terminal 5 of inductor T4 is connected to terminal 2 of capacitor C99, terminal 2 of resistor R113, and MD1, respectively. Terminal 4 of inductor T4 is connected to terminal 1 of resistor R116, terminal 1 of resistor R113, terminal 2 of diode D17, terminal 1 of diode D16, and terminal 2 of optocoupler chip U13, respectively. Terminal 1 of capacitor C99 is connected to terminal 2 of resistor R116. Terminal 1 of diode D17 is connected to terminal 2 of diode D15. Terminal 1 of diode D15 is connected to terminal 2 of diode D14. Terminal 1 of diode D14 is connected to terminal 2 of resistor R112 and terminal 2 of diode D16. Terminal 1 of resistor R112 is connected to terminal 1 of optocoupler chip U13. Terminal 3 of optocoupler chip U13 is connected to terminal 2 of resistor R127 and terminal B of transistor V18. Terminal 1 of resistor R127 is connected to terminal E of transistor V18 and then grounded. Terminal 4 of optocoupler chip U13 is connected to terminal 1 of resistor R110. Terminal 2 of resistor R110 is connected to terminal 2 of resistor R111 and the operating voltage +5V. Terminal 1 of resistor R111 is connected to terminal C of transistor V18 and terminal 2 of resistor R121.

8. A method of converting a music or sound signal into a synchronously varying pulsed current, characterized by, The control method uses a system as described in any one of claims 1-7 to convert music or sound signals into synchronously changing pulse currents, and the method includes the following steps: Step 1: Audio signal acquisition domain input. The audio signal is received by the internal circuit and an audio judgment signal is generated for system monitoring. Step 2: Analog-to-digital conversion and digital signal processing; Step 3: Music synchronization pulse modulation; Step 4: PWM signal output and electrical pulse generation; Step 5: Output of electrical pulses.

9. The method of claim 8, wherein, Specifically, step 3 is as follows: Obtain the voltage value of the music signal acquisition; Processing music signals; Perform precision processing on music signals; Calculate the level of the control pulse output using ElePWMData.Max; Perform precision processing on music signals; The converted duty ratio of the music data to PWM is 0-1200, wherein 1200 is the total number of PWM pulse width.

10. A system for converting music or sound signals into synchronously changing pulse current, which is applied to a device or system for converting music or sound signals into synchronously changing pulse current signals, and to a far infrared magnetoelectric pulse therapeutic instrument.

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