Acoustic physiological health promotion system

Abstract

The invention belongs to the field of physiological health regulation and health care, and particularly discloses an acoustic physiological health promotion system, which comprises a multi-source signal acquisition module; a physiological state feature extraction module; an acoustic strategy generation module; a multi-dimensional sound field processing engine; a dynamic feedback unit; real-time physiological signals and physique data of a user are acquired through the multi-source signal acquisition module, a quantitative physiological state is extracted through physiological state features, a dynamic acoustic strategy is generated in combination with a circadian rhythm model, sound wave interference is eliminated by the multi-dimensional sound field processing engine, and target frequency band energy is accurately adjusted. And the dynamic feedback unit optimizes the output in real time, so that accurate matching between acoustic intervention and the real-time physiological state of the user is effectively realized, and the physiological health regulation intervention effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of physiological health regulation and care, and specifically relates to an acoustic physiological health promotion system. Background Technology

[0002] Existing physiological health regulation technologies mostly rely on playing fixed music tracks, and cannot dynamically adjust acoustic parameters (such as target frequency band energy and sound field width) based on the user's real-time physiological signals (such as the level of emotional arousal reflected by the skin conductance response, the level of muscle tension reflected by the electromyography signal, and the state of the autonomic nervous system reflected by the heart rate variability) and circadian rhythms (such as the difference in the human body's perceived need for sound field width at different times). Furthermore, when multiple instruments are played together, sound wave interference is easily generated, which leads to distortion of the target adjustment frequency band. As a result, acoustic intervention cannot accurately match the user's real-time physiological state, and the intervention effect is limited. Summary of the Invention

[0003] The purpose of this invention is to provide an acoustic physiological health promotion system to solve the problem that existing physiological health regulation technologies mentioned in the background art lack the ability to dynamically perceive users' real-time physiological signals, adapt to diurnal rhythms, and accurately process acoustic signals, thus failing to dynamically adjust acoustic parameters to match users' real-time physiological state, resulting in insufficient precision and effectiveness of intervention.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An acoustic physical health promotion system, comprising: The multi-source signal acquisition module is used to collect users' physiological signals and physical fitness questionnaire data; The multi-source signal acquisition module first collects two types of core data: user physiological signals (skin conductance response, electromyography signal, and heart rate variability) and physical fitness questionnaire data. Among them, physiological signals directly reflect the real-time physiological state of the human body (such as skin conductance response reflecting emotional arousal, electromyography signal reflecting muscle tension, and heart rate variability reflecting autonomic nerve function), while physical fitness questionnaire data supplements the user's basic physical fitness information, providing a comprehensive basis for subsequent analysis.

[0005] A physiological state feature extraction module is used to calculate feature vectors based on the user's physiological signals; The physiological state feature extraction module calculates the collected physiological signals and generates feature vectors (including muscle tension, stress index, and liver qi circulation index). These feature vectors are core indicators for quantifying human body state. For example, the "liver qi circulation index" is calculated by weighting the time-domain standard deviation of heart rate variability (reflecting the stability of the autonomic nervous system) and the proportion of rapid eye movement sleep cycles (reflecting sleep quality), and is directly related to the "liver qi circulation" function state in traditional Chinese medicine.

[0006] An acoustic strategy generation module is used to calculate the target frequency band gain parameters and pulse intervention parameters based on the feature vector and a preset circadian rhythm model. The acoustic strategy generation module calculates the target frequency band gain parameters and pulse intervention parameters based on feature vectors and a preset circadian rhythm model. The circadian rhythm model dynamically adjusts according to the human body's biological clock (e.g., reducing the sound field width to 80% from 3:00 to 5:00 local time to meet the needs of deep rest; expanding it to 135% from 11:00 to 13:00 to improve alertness), ensuring that the acoustic intervention is synchronized with the human body's circadian rhythm.

[0007] A multi-dimensional sound field processing engine is used to perform operations based on target frequency band gain parameters and pulse intervention parameters. Eliminate sound wave interference during multi-instrument ensemble playing to ensure sound purity; The energy of the target frequency band (first band 60-150Hz, second band 2-4kHz, third band 800-1200Hz) is dynamically adjusted according to preset acoustic parameters. For example, the third frequency band (800-1200Hz) is related to the flow of liver qi and can be targeted for intervention. Generate virtual space parameters that adapt to the acoustic scene (such as indoor and outdoor) to enhance auditory immersion; The dynamic feedback unit is used to monitor the user's bioelectrical signals in real time and dynamically optimize the acoustic output strategy based on the feedback data.

[0008] The dynamic feedback unit monitors the user's bioelectric signals (such as electromyography and skin conductance response) in real time and optimizes the strategy based on the feedback data. For example, if the decrease in muscle tension is less than 10%, it indicates that the current intervention is insufficient and the energy of the third frequency band needs to be enhanced and pulses need to be added. If the skin conductance response is greater than 0.65 (high emotional arousal), the system switches to the 200-500Hz main frequency music library (lower frequencies are easier to calm emotions).

[0009] Preferably, the user's physiological signals include skin conductance response, electromyography signal, and heart rate variability.

[0010] Preferably, the dynamic adjustment of the target frequency band energy according to preset acoustic parameters includes: First frequency band: 60-150Hz; Second frequency band: 2-4kHz; Third frequency band: 800-1200Hz.

[0011] Preferably, the feature vector includes muscle tension, stress index, and liver qi circulation index.

[0012] Preferably, the liver qi circulation index is calculated using the following formula: Liver Qi Circulation Index = 0.7 × Time-domain Standard Deviation of Heart Rate Variability + 0.3 × Percentage of REM Sleep Cycles; When the liver qi circulation index exceeds the preset threshold, the acoustic strategy generation module executes: Increase the energy of the third frequency band by 20%; Activate the 6.8kHz pulse intervention (pulse width 50ms, period 10s).

[0013] Preferably, the parameter adjustment of the circadian rhythm model includes: Local time 3:00-5:00: Sound field width reduced to 80% of its original value; Local time 11:00-13:00: The sound field width expands to 135% of the original value.

[0014] Preferably, the operations performed by the dynamic feedback unit include: The rate of change in muscle tension was calculated using electromyographic signals before and after acoustic modulation. If the rate of change in muscle tension decreases by less than 10%, increase the energy of the third frequency band by 20% and add a 6.8kHz pulse intervention; When the skin conductance response value is >0.65, switch to the audio library with a main frequency of 200-500Hz.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention acquires real-time physiological signals and physical condition data of users through a multi-source signal acquisition module, quantifies physiological state through physiological state feature extraction, generates dynamic acoustic strategies by combining a circadian rhythm model, eliminates sound wave interference and precisely adjusts the energy of the target frequency band by a multi-dimensional sound field processing engine, and optimizes the output in real time through a dynamic feedback unit. This effectively achieves precise matching between acoustic intervention and the user's real-time physiological state, and improves the effect of physiological health regulation intervention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a system module block diagram of the present invention. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0020] As attached Figure 1 As shown: Example 1: This example provides an acoustic physiological health promotion system, including: The multi-source signal acquisition module is used to collect users' physiological signals and physical fitness questionnaire data; The physiological state feature extraction module is used to calculate feature vectors based on user physiological signals; The acoustic strategy generation module is used to calculate the target frequency band gain parameters and pulse intervention parameters based on the feature vector and the preset circadian rhythm model. A multi-dimensional sound field processing engine is used to perform operations based on target frequency band gain parameters and pulse intervention parameters. Eliminate sound wave interference during multi-instrument ensemble playing; LMS adaptive filter is used to eliminate interference between guqin and drum duet: ; in, The error signal, i.e., the difference between the pure target signal and the filtered signal, is used for real-time optimization. , These are the filter weights, i.e., adaptively adjusted Nth-order coefficients, used to cancel out specific delay components of interfering instruments. This refers to the filter order, which is set according to the time-domain characteristics of the instrument (e.g., the reverberation delay of the guqin / xiao is about 80ms, corresponding to a sampling rate of 44.1kHz, where N≈3520). The desired signal is the pure signal of the target instrument (such as the original sound of the guqin / xiao), which does not contain interference from other instruments. As a reference input, the mixed sound waves of multiple instruments playing together (such as the time-domain mixed signal of guqin + drum), including the target frequency band (such as 60-150Hz) and the interference frequency band (such as the low-frequency harmonics of drum), have a THD < 0.05% after convergence.

[0021] Dynamically adjust the energy of the target frequency band according to preset acoustic parameters; Generate virtual space parameters adapted to the acoustic scene; The dynamic feedback unit is used to monitor the user's bioelectrical signals in real time and dynamically optimize the acoustic output strategy based on the feedback data.

[0022] Specifically, user physiological signals include skin conductance response, electromyography signals, and heart rate variability.

[0023] Skin conductance response: an indicator of changes in skin conductance with sweat gland activity; a higher value indicates a higher level of emotional arousal (such as tension or excitement).

[0024] Specifically, dynamically adjusting the energy of the target frequency band according to preset acoustic parameters includes: First frequency band: 60-150Hz; 60-150Hz is a low frequency, which can calm emotions. The sound pressure level is 75±2dB, and the vagus nerve stimulation threshold is ≥70dB.

[0025] Second frequency band: 2-4kHz; 2-4kHz is considered mid-to-high frequency, which can enhance concentration.

[0026] Third frequency band: 800-1200Hz.

[0027] The frequency range of 800-1200Hz is close to that of human speech, making it easily perceived by the auditory system and suitable for targeted adjustment.

[0028] Specifically, the feature vectors include muscle tension, stress index, and liver qi circulation index.

[0029] Specifically, the Liver Qi Circulation Index is calculated using the following formula: Liver Qi Circulation Index = 0.7 × Time-domain Standard Deviation of Heart Rate Variability + 0.3 × Percentage of REM Sleep Cycles; When the liver qi circulation index exceeds the preset threshold, the acoustic strategy generation module executes: Increase the energy of the third frequency band by 20%; Activate the 6.8kHz pulse intervention (pulse width 50ms, period 10s).

[0030] Heart rate variability time-domain standard deviation: The standard deviation of heart rate fluctuation reflects the balance between the sympathetic and parasympathetic nervous systems in the autonomic nervous system. The larger the value, the stronger the autonomic nervous system's regulatory ability. REM sleep cycle: The stage of sleep in which the eyes move rapidly. It is related to memory consolidation and mood regulation. A low percentage of REM sleep may indicate poor sleep quality.

[0031] Liver Qi Circulation Index Threshold: When the index is greater than the preset threshold, it indicates that the liver qi is not flowing smoothly (such as emotional depression or poor sleep). At this time, the energy of 800-1200Hz is increased (to enhance auditory perception) and a 6.8kHz pulse is superimposed (to stimulate nerve regulation), which is in line with the TCM theory of "soothing the liver and regulating qi".

[0032] Specifically, parameter tuning for the circadian rhythm model includes: Local time 3:00-5:00: Sound field width reduced to 80% of its original value; 3:00-5:00 (the "Yin hour" in Traditional Chinese Medicine, when the Lung Meridian is dominant and the body is in a state of deep rest): Reduce the width of the sound field to minimize external interference and protect sleep.

[0033] Local time 11:00-13:00: The sound field width expands to 135% of the original value.

[0034] 11:00-13:00 (Traditional Chinese Medicine's "noon hour," when the Heart Meridian is dominant, making one prone to drowsiness): Expanding the sound field width enhances the sense of space and improves alertness through auditory stimulation, which aligns with the physiological health regulation pattern of "noon nap."

[0035] Sound field width: the lateral range of sound propagation in space. Reducing it can enhance sound focus (reduce interference), while expanding it can enhance the sense of space (increase alertness).

[0036] Specifically, the operations performed by the dynamic feedback unit include: The rate of change in muscle tension was calculated using electromyographic signals before and after acoustic modulation. If the rate of change in muscle tension decreases by less than 10%, increase the energy of the third frequency band by 20% and add a 6.8kHz pulse intervention; When the skin conductance response value is >0.65, switch to the audio library with a main frequency of 200-500Hz.

[0037] Dynamic feedback threshold: Muscle tension change rate <10% indicates insufficient intervention and needs to be enhanced; skin conductance response >0.65 indicates high arousal, switch to 200-500Hz low frequency music library (low frequency sound waves are more likely to induce relaxation response), sound pressure level 60±3dB, alpha brain wave excitation frequency: 432Hz.

[0038] As can be seen from the above, by acquiring multi-source signals and quantifying feature vectors, we can achieve accurate identification of the human body's state (such as when the liver qi circulation index is abnormal, we can specifically increase the energy of the third frequency band by 20% and activate the 6.8kHz pulse intervention), thus avoiding "one-size-fits-all" intervention. By combining a circadian rhythm model and a dynamic feedback mechanism, acoustic interventions are dynamically adjusted according to the human body's biological clock and real-time status. For example, when the human body is in a deep rest period from 3 to 5 a.m., the sound field width is reduced to minimize interference; when the body is prone to drowsiness from 11 p.m. to 1 p.m., the sound field width is expanded to enhance alertness; and when muscle tension has not improved, the intervention is enhanced immediately to ensure continuous optimization of the effect. The multi-dimensional sound field processing engine improves the efficiency of acoustic signal intervention through three operations: interference elimination, frequency band energy adjustment, and virtual space parameter generation. For example, eliminating sound wave interference ensures that the target frequency band energy is accurately applied to the human body; the energy enhancement of the third frequency band (800-1200Hz) can directly act on the autonomic nervous system and assist in the smooth flow of liver qi; 6.8kHz pulse intervention (pulse width 50ms, cycle 10s) enhances the effect of neural regulation through specific frequency stimulation.

[0039] Example 2: Intervention on users with liver stagnation constitution using the system from Example 1, the process is as follows: User characteristics: The physical fitness questionnaire showed "depression, irritability, and insomnia" (corresponding to liver stagnation treatment); the multi-source signal acquisition module collected the following: electromyography signal showed muscle tension >0.8 (normal value 0.3-0.6), heart rate variability time domain standard deviation <20ms (indicating weak autonomic nervous system regulation), and REM sleep cycle percentage <15% (indicating poor sleep quality).

[0040] Multi-source signal acquisition module Two types of data are collected simultaneously: Physiological signals: skin conductance response (0.52, moderate emotional arousal), electromyography (muscle tension 0.85), heart rate variability (time domain standard deviation 18ms). Physical constitution questionnaire data: Users reported "headache upon waking and dry eyes" (corresponding to the liver and gallbladder organs, relieving eye fatigue and headaches).

[0041] Physiological state feature extraction module Calculate the eigenvector: Muscle tension = 0.85 (based on time-domain analysis of electromyography signals); The Liver Qi Regulating Index = 0.7×18 + 0.3×15 = 12.6 + 4.5 = 17.1 (The preset threshold is 25. If it is lower than the threshold, it indicates insufficient Liver Qi Regulating, which is consistent with the characteristics of Liver Qi Stagnation).

[0042] Acoustic strategy generation module The following parameters are used to generate the strategy: Feature vector: Liver Qi dredging index < threshold, requiring enhanced liver dredging intervention; Circadian rhythm model: The current time is 10:30 pm (the time when the liver meridian is dominant is 23:00-1:00 am), and the sound field width is preset to 100% of the original value according to the model (the liver meridian is dominant on the day of the approaching day, in preparation for intervention). The acoustic characteristics suitable for liver stagnation regulation are "rich and clear sound quality with abundant reverberation", corresponding to the third frequency band (800-1200Hz, which is easily perceived by the ear).

[0043] Generation parameters: Target band gain: Initial energy increase of 15% in the third band (800-1200Hz); Pulse intervention: Do not activate for now (if the liver qi circulation index is not exceeded, basic intervention is sufficient).

[0044] Multi-dimensional sound field processing engine Perform three operations: Eliminating acoustic interference: For the representative musical instrument "Guzheng and Xiao duet", an LMS adaptive filter is used to eliminate frequency overlap interference, resulting in a total harmonic distortion (THD) of less than 0.05%. Adjust the energy of the target frequency band: the third frequency band (800-1200Hz) is boosted by 15% according to the gain parameter, and the sound pressure level is 72±2dB (to match the melodious characteristics). Generate virtual space parameters: Based on the user's current scene (bedroom), generate virtual parameters of "enclosed space reverberation time 0.8s" to enhance the immersive feeling of "rich hall sound" ("melodious and radiant" style).

[0045] Dynamic feedback unit Monitoring 30 minutes after intervention: Electromyography showed that muscle tension decreased to 0.72, with a change rate of (0.85-0.72) / 0.85≈15.3% (>10%, intervention was effective); The skin conductance response decreased to 0.45 (reduced emotional arousal).

[0046] No strategy adjustment is needed. Continue the intervention until 23:00 (the time when the liver meridian is dominant). At this time, the sound field width is kept at 100% according to the circadian rhythm model to ensure the intervention effect.

[0047] Example 3: The intervention process for users with spleen deficiency constitution using the system from Example 1 is as follows: User characteristics: The physical constitution questionnaire showed "indigestion, loss of appetite, and excessive thinking" (corresponding to spleen and stomach conditioning); the multi-source signal acquisition module collected: skin conductance response 0.62 (slightly high), heart rate variability time domain standard deviation 35ms (normal).

[0048] Multi-source signal acquisition module Data collection: Physiological signals: skin conductance response 0.62 (close to the high arousal threshold of 0.65), electromyography (muscle tension 0.5), heart rate variability (time domain standard deviation 35ms); Physical constitution questionnaire data: Users reported "abdominal bloating after meals" (regulates spleen and stomach function and improves indigestion).

[0049] Physiological state feature extraction module Eigenvector: Stress index = 0.6 (based on heart rate variability frequency domain analysis, indicating mild stress).

[0050] Acoustic strategy generation module Combined parameters: Circadian rhythm: The current time is 10:00 AM (the Spleen Meridian is in power from 9:00 AM to 11:00 AM), and the sound field width is expanded to 120% of the original value (to match the "wide and deep sound field" characteristic). Suitable for treating spleen deficiency, corresponding to the first frequency band (60-150Hz, low frequency, calming emotions).

[0051] Generation parameters: Target frequency band gain: Energy increase of 10% in the first frequency band (60-150Hz), sound pressure level 75±2dB; Multi-dimensional sound field processing engine Perform the following operation: Eliminating interference: For the representative musical instrument "Guqin and drum ensemble", low-frequency harmonic interference is filtered to ensure the purity of the 60-150Hz frequency band; Adjusting frequency band energy: The first frequency band is boosted by 10% to enhance the "deep and powerful" characteristics of low frequencies; Virtual space parameters: Generate parameters for "reverberation time of 1.2s in an open living room space" to match the requirement of "wide sound field".

[0052] Dynamic feedback unit Monitoring 20 minutes after intervention: The skin conductance response increased to 0.66 (>0.65, indicating high emotional arousal), triggering the feedback mechanism; Switch to the music library with a main frequency of 200-500Hz (such as the variable speed version of "Huang Ting Jing") according to the rules, and at the same time, the energy of the first frequency band will be increased by 5% (total increase of 15%).

[0053] After monitoring for another 10 minutes, the skin conductance response dropped to 0.58, indicating that the intervention was effective. The strategy was maintained until 11:00 (when the spleen meridian is in its dominant phase).

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An acoustic physiological health promotion system, characterized in that, include: The multi-source signal acquisition module is used to collect users' physiological signals and physical fitness questionnaire data; A physiological state feature extraction module is used to calculate feature vectors based on the user's physiological signals; An acoustic strategy generation module is used to calculate the target frequency band gain parameters and pulse intervention parameters based on the feature vector and a preset circadian rhythm model. A multi-dimensional sound field processing engine is used to perform operations based on target frequency band gain parameters and pulse intervention parameters. Eliminate sound wave interference during multi-instrument ensemble playing; Dynamically adjust the energy of the target frequency band according to preset acoustic parameters; Generate virtual space parameters adapted to the acoustic scene; The dynamic feedback unit is used to monitor the user's bioelectrical signals in real time and dynamically optimize the acoustic output strategy based on the feedback data.

2. The acoustic physiological health promotion system according to claim 1, characterized in that, The user's physiological signals include skin conductance response, electromyography signals, and heart rate variability.

3. The acoustic physiological health promotion system according to claim 1, characterized in that, The dynamic adjustment of the target frequency band energy according to preset acoustic parameters includes: First frequency band: 60-150Hz; Second frequency band: 2-4kHz; Third frequency band: 800-1200Hz.

4. The acoustic physiological health promotion system according to claim 1, characterized in that, The feature vector includes muscle tension, stress index, and liver qi circulation index.

5. The acoustic physiological health promotion system according to claim 4, characterized in that, The liver qi circulation index is calculated using the following formula: Liver Qi Regulating Index = 0.7 × Time Domain Standard Deviation of Heart Rate Variability + 0.3 × Percentage of REM Sleep Cycles; When the liver qi circulation index exceeds the preset threshold, the acoustic strategy generation module executes: Increase the energy of the third frequency band by 20%; Activate the 6.8kHz pulse intervention (pulse width 50ms, period 10s).

6. The acoustic physiological health promotion system according to claim 1, characterized in that, The parameter adjustment of the circadian rhythm model includes: Local time 3:00-5:00: Sound field width reduced to 80% of its original value; Local time 11:00-13:00: The sound field width expands to 135% of its original value.

7. The acoustic physiological health promotion system according to claim 2, characterized in that, The operations performed by the dynamic feedback unit include: The rate of change in muscle tension was calculated using electromyographic signals before and after acoustic modulation. If the rate of change in muscle tension decreases by less than 10%, increase the energy of the third frequency band by 20% and add a 6.8kHz pulse intervention; When the skin conductance response value is >0.65, switch to the audio library with a main frequency of 200-500Hz.

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