Physiological feedback stress modulation method, storage medium, and device

Abstract

The application provides a physiological feedback mental stress regulation method, a storage medium and equipment, and belongs to the technical field of intelligent beauty, and the method comprises the following steps: collecting physiological signals: collecting physiological signals of a user in real time through a wearable device; judging mental stress: judging whether the mental stress of the user exceeds a preset threshold value in real time based on the physiological signals; and outputting an intervention signal: if it is judged that the mental stress exceeds the preset threshold value, outputting a deep breathing guidance intervention signal through the wearable device. The physiological feedback mental stress regulation method applied to the physiotherapy process in the application embodiment can monitor and guide to reduce the mental stress of the user.

Description

Technical Field

[0001] This application belongs to the field of intelligent beauty equipment technology, and more specifically, it relates to a physiological feedback mental stress regulation method, storage medium and device applied to the physiotherapy process. Background Technology

[0002] Phototherapy masks, as a convenient home beauty device, use light of specific wavelengths to act on the skin and are widely used for purposes such as improving skin texture and anti-aging. When wearing the mask for phototherapy treatment, users are usually in a relatively still state, such as lying down or sitting, which should be a relaxing time for both body and mind.

[0003] However, in reality, even during beauty treatments, users may still be disturbed by work, daily life matters, or their own thoughts, resulting in no effective reduction in mental stress. This hidden state of mental stress is often not easily noticed by the user themselves.

[0004] Current phototherapy beauty masks primarily focus on setting and outputting light parameters, lacking the ability to perceive the user's real-time physical and mental state. Users cannot know whether they have truly achieved a relaxed state during the treatment, nor can they receive timely assistance when their mental stress subtly increases. Studies have shown that mental stress can trigger physiological reactions such as vasoconstriction and abnormal sebum secretion in the skin, which not only affect the absorption efficiency of phototherapy energy but may also negate the cosmetic effects of phototherapy and even exacerbate skin problems.

[0005] Therefore, a new solution is urgently needed to address the problem of poor light therapy effects and unsatisfactory experience caused by users' high levels of mental stress. Summary of the Invention

[0006] This application provides a physiological feedback method for regulating mental stress applied during physiotherapy, which can monitor and guide the reduction of users' mental stress.

[0007] The technical solution adopted in this application embodiment is: to provide a physiological feedback method for regulating mental stress applied in the physiotherapy process, including the following steps:

[0008] Collect physiological signals: Collect users' physiological signals in real time through wearable devices;

[0009] Mental stress assessment: Based on the physiological signals, determine in real time whether the user's mental stress exceeds a preset threshold;

[0010] Output intervention signal: If the mental stress is determined to exceed the preset threshold, a deep breathing guidance intervention signal is output through the wearable device.

[0011] Furthermore, the deep breathing guidance intervention signal includes at least one of a microcurrent stimulation signal, an audio reminder signal, or a vibration reminder signal.

[0012] Furthermore, when the deep breathing guidance intervention signal is a microcurrent stimulation signal, the output of the deep breathing guidance intervention signal includes the following steps:

[0013] A target breathing rhythm is generated based on the aforementioned mental stress, and the target breathing rhythm includes a sequentially alternating inhalation phase, a switching interval, and an exhalation phase.

[0014] The wearable device’s microcurrent stimulation module outputs a first frequency pulse current sequence during the inhalation phase and a second frequency pulse current sequence during the exhalation phase, and pauses the current output during the switching interval to form a tactile interruption signal to guide the breathing switch.

[0015] The first frequency and the second frequency are dynamically set according to the mental stress.

[0016] Furthermore, the microcurrent stimulation module includes at least two stimulation unit groups arranged in a preset spatial path order;

[0017] During the inhalation phase, each of the stimulation unit groups is activated sequentially according to the forward sequence of the spatial path, forming a unidirectional tactile stimulation flow;

[0018] During the exhalation phase, each of the stimulation unit groups is activated sequentially in the reverse sequence of the spatial path to form a tactile stimulation flow in the opposite direction to that during the inhalation phase.

[0019] Furthermore, during a single inhalation phase and / or a single exhalation phase, the tactile stimulation flow traverses all the stimulation unit groups at least once in the direction corresponding to the breathing phase.

[0020] Furthermore, the number of complete traversals and the activation duration of a single stimulation unit group are dynamically adjusted according to the mental stress. The higher the mental stress, the fewer the number of complete traversals in a single inhalation phase and / or a single exhalation phase, and the longer the activation duration of a single stimulation unit group.

[0021] Furthermore, the first frequency changes from the initial value by increasing by 2Hz every 0.5 seconds; the second frequency changes from the initial value by decreasing by 2Hz every 0.5 seconds.

[0022] Furthermore, it also includes safety control procedures for electrical stimulation:

[0023] Based on the physiological signals, the heart rate variability ΔHR is calculated;

[0024] When ΔHR exceeds the preset safety threshold K, the output intensity of the first frequency pulse current and the second frequency pulse current is reduced proportionally.

[0025] When ΔHR continues to exceed the safety threshold K for T seconds, the microcurrent stimulation signal output is paused.

[0026] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the physiological feedback mental stress regulation method applied to the physiotherapy process as described in any of the preceding claims.

[0027] This application also provides a wearable device for regulating mental stress, including:

[0028] Physiological signal sensors are used to collect users' physiological signals in real time;

[0029] Intervention signal output module, used to output deep breathing guidance intervention signal;

[0030] The processor is communicatively connected to the physiological signal sensor and the intervention signal output module. The processor is configured to determine in real time whether the user's mental stress exceeds a preset threshold based on the physiological signal, and when the mental stress exceeds the preset threshold, control the intervention signal output module to output the deep breathing guidance intervention signal.

[0031] The beneficial effects of the physiological feedback method for regulating mental stress during physiotherapy provided in this application are as follows: This method collects the user's physiological signals in real time through a wearable device, including heart rate variability, to determine whether mental stress exceeds a preset threshold. If it does, a deep breathing guidance intervention signal is output. Thus, without the need for subjective judgment or active adjustment by the user, timely intervention can be provided when mental stress is high, helping the user truly relax during physiotherapy (such as phototherapy) and preventing hidden mental stress from affecting phototherapy. Simultaneously, it also helps reduce skin vasoconstriction and abnormal sebum secretion caused by mental stress, improves the energy absorption efficiency of phototherapy, ensures the cosmetic effect of phototherapy, prevents mental stress from exacerbating skin problems, and allows users to enjoy cosmetic care while effectively relieving mental stress during the relatively static phototherapy process, optimizing the user experience. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A flowchart illustrating a physiological feedback method for regulating mental stress applied during physiotherapy, provided in an embodiment of this application.

[0034] Figure 2 A flowchart illustrating the output of a deep breathing guidance intervention signal provided in an embodiment of this application.

[0035] Figure 3 A flowchart illustrating the output of a deep breathing guidance intervention signal with a tactile stimulation flow direction provided in this application embodiment.

[0036] Figure 4 A flowchart of the electrical stimulation safety control steps provided in the embodiments of this application.

[0037] Figure 5 Data flow diagram of the stress-regulating wearable device provided in the embodiments of this application.

[0038] Figure 6 This is a diagram showing the arrangement of the microcurrent stimulation module on the phototherapy mask provided in this embodiment.

[0039] The following are the labeling elements in the figure:

[0040] 10. Phototherapy mask; 11. Physiological signal sensor; 12. Intervention signal output module; 121. Stimulation unit group; 1211. Electrode pads; 13. Processor. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0045] Please see Figures 1 to 6 The present application describes a physiological feedback method for regulating mental stress applied during a physiotherapy process, as provided in the embodiments of this application. This physiotherapy process can be phototherapy, massage, microcurrent therapy, microneedle therapy, radiofrequency therapy, ultrasound therapy, hydrotherapy, magnetotherapy, or other similar procedures.

[0046] Reference Figure 1 The physiological feedback mental stress regulation method for physical therapy provided in this application includes steps S1-S3.

[0047] S1. Collect physiological signals: Collect users' physiological signals in real time through wearable devices.

[0048] In step S1, the wearable device uses a built-in physiological signal sensor 11 (e.g., an optical heart rate sensor or electrode pad 1211) to record heart rate and heart rate variability data in real time. This involves capturing the interval differences of each heartbeat. The sensor continuously collects data multiple times per second, and the raw signal is filtered by the device's internal processing module to remove irrelevant information such as motion interference and environmental electromagnetic noise, ensuring that the acquired heart rate-related signals are accurate and stable. In some embodiments, the heart rate sensor is a photoplethysmography (PPG) sensor. For example, the PPG sensor can be selected from the following models: AFE4400, AFE4410, AFE4490, ADPD4000, and MAX86150.

[0049] The reason for choosing to collect these signals in real time is that heart rate and heart rate variability are closely related to a person's mental stress level. For example, when mental stress increases, the heart rate will increase and heart rate variability will decrease. By accurately collecting these signals, reliable basic data can be provided for subsequent judgment of the level of mental stress, allowing the system to promptly capture subtle changes in the user's mental stress.

[0050] Among them, reference Figure 6This wearable device can be a phototherapy beauty mask. Such masks can embed small heart rate sensors within their skin-contacting locations, such as sensor modules on the edges of the mask corresponding to the forehead, temples, or jawline. When the user wears the mask for phototherapy, the sensors can capture heart rate and heart rate variability signals in real time. Simultaneously, the mask can integrate vibration units (such as miniature vibrators on the ear loops), a prompting sound playback component (emitting gentle guiding sounds through a small speaker built into the mask), and microcurrent electrodes. When the system determines that mental stress exceeds a threshold, the vibrator vibrates rhythmically, the speaker emits a prompting sound simultaneously, and the microcurrent electrodes emit a stimulating current to guide the user to take deep breaths. Mental stress regulation can be achieved during the beauty process without additional equipment. Furthermore, the phototherapy mask 10 also includes a mask body, a light-transmitting layer, and a flexible light panel. The light-transmitting layer is located inside the mask body, and the flexible light panel is sandwiched between the mask body and the light-transmitting layer. The light emitted by the flexible light panel can pass through the light-transmitting layer to provide phototherapy to the user.

[0051] The wearable device can also be a smartwatch, bracelet, smart headband, etc.

[0052] Among them, mental stress can be directly quantified using physiological parameters or converted into an intuitive "stress index" using algorithms.

[0053] If mental stress is to be directly quantified using physiological parameters, the low-frequency / high-frequency ratio (LF / HF) of heart rate variability (HRV) can be used. This ratio reflects the balance between the sympathetic and parasympathetic nervous systems; LF / HF increases with rising stress, with a normal range of approximately 1-2. A preset threshold can be set to 2.5, meaning that when LF / HF > 2.5, stress is considered excessive.

[0054] If mental stress is expressed using a stress index, the device uses an algorithm to convert physiological signals into an intuitive "stress index," where 0 indicates no stress and 100 indicates extreme stress, with higher values ​​representing greater stress. A preset threshold of 50 can be set; a mental stress index exceeding 50 is considered excessive stress.

[0055] S2. Mental stress assessment: Based on the physiological signals, determine in real time whether the user's mental stress exceeds a preset threshold.

[0056] In step S2, the system inputs the processed heart rate and heart rate variability signals into a pre-trained mental stress assessment model. This model, built upon a large sample of heart rate-related physiological data, can comprehensively calculate the user's current mental stress based on indicators such as the specific range of heart rate variability and heart rate fluctuations. This mental stress assessment model is already widely used in existing smartwatches and fitness trackers and is a common technology in wearable devices, so it will not be elaborated upon further here.

[0057] The preset threshold is set based on the range of heart rate and heart rate variability indicators when the human body is in a relaxed state, as well as individual differences among users. Users can also adjust it within a certain range according to their own feelings. The reason for this is that multi-dimensional analysis of heart rate and heart rate variability can improve the accuracy of judging the level of mental stress, while a reasonable preset threshold can ensure that the system will not overreact to slight fluctuations in mental stress, and can detect in time when mental stress reaches a level that affects the effect of phototherapy, providing an accurate basis for subsequent intervention.

[0058] S3. Output intervention signal: If the mental stress is determined to exceed the preset threshold, a deep breathing guidance intervention signal is output through the wearable device.

[0059] In step S3, once the mental stress is determined to exceed a preset threshold, the intervention signal output step is initiated. The intervention signal output module 12 of the wearable device outputs deep breathing guidance intervention signals in various ways. For example, the device's built-in vibration module will generate regular vibrations according to the rhythm of "4 seconds of vibration to prompt inhalation, 7 seconds of stillness to prompt breath-holding, and 8 seconds of vibration to prompt exhalation," while the accompanying APP will display a dynamic breathing guidance animation on the screen. Alternatively, the wearable device will play guiding sounds, and the user will follow the sound instructions to inhale or exhale. Or, the wearable device will release current to the user through electrodes, with the current magnitude ranging from 50μA to 500μA. The tactile sensations such as numbness and itching generated by the current stimulation will guide the user to breathe. For example, a microcurrent is applied to the skin at a high pulse frequency for 4 seconds to slightly stimulate the skin and give the user a tactile prompt of "inhalation." The current stimulation is paused for 7 seconds to prompt the user to hold their breath, and then the current is applied to the skin at a lower pulse frequency for 8 seconds to stimulate the skin again and guide the user to exhale slowly.

[0060] Studies have shown that regular deep breathing can effectively activate the parasympathetic nervous system and reduce the excitability of the sympathetic nervous system, thereby quickly relieving mental stress. This method is simple and easy to perform, and users can easily follow along while wearing the phototherapy mask. Through multi-sensory guidance signals, the user's perception and adherence to the intervention can be improved, helping them adjust their breathing rhythm more quickly and restoring physiological indicators such as heart rate and heart rate variability to normal ranges. This reduces the adverse effects of mental stress on the phototherapy effect, allowing users to truly achieve physical and mental relaxation during phototherapy.

[0061] Furthermore, the deep breathing guidance intervention signal includes at least one of a microcurrent stimulation signal, an audio reminder signal, or a vibration reminder signal.

[0062] The intervention signal output module 12 can be at least one of a microcurrent stimulation module, an audio playback component, and a vibration module. The microcurrent stimulation signal in the deep breathing guidance intervention signal is achieved through the microcurrent module built into the wearable device. Taking a phototherapy beauty mask as an example, micro-electrode pads 1211 are set on the inner side of the mask, corresponding to areas with thin and sensitive skin such as the chin and below the cheekbone. When the system determines that the user's mental stress exceeds the threshold, the electrode pads 1211 will release weak and safe current pulses, and the pulse rhythm strictly follows the scientific frequency of deep breathing. For example, during the inhalation phase (about 4 seconds), the current gently stimulates the skin at a higher pulse frequency (10Hz-40Hz), giving the user a tactile cue of "inhaling"; during the breath-holding phase (about 7 seconds), the current stimulation pauses, allowing the user to perceive the "breath-holding" signal; during the exhalation phase (about 8 seconds), the current stimulates again at a lower pulse frequency (4Hz-20Hz), guiding the user to exhale slowly. This signal does not rely on vision or hearing, and can accurately transmit guidance information even when the user is resting with their eyes closed. Moreover, the gentle electrical stimulation will not cause discomfort, but can enhance the perception of breathing rhythm through skin touch.

[0063] The sound alerts are output through the device's audio playback components. The phototherapy mask 10 can integrate a small speaker, allowing smartwatches or bracelets to emit sound via their own speakers or connected Bluetooth headphones. The sound signals use clear, gentle prompts or voice commands, such as playing the "Inhale" voice command or a rising tone for 4 seconds when inhaling; playing the "Hold Your Breath" prompt or maintaining a steady tone for 7 seconds when holding your breath; and playing the "Exhale" command or a falling tone for 8 seconds when exhaling. This sound signal allows users to quickly understand the breathing action to be performed, and the rhythmic changes in the sound directly drive adjustments to the breathing rhythm, enhancing the immediacy of the guidance.

[0064] Vibration alerts rely on the device's vibration module, such as the miniature vibrator at the ear loops of a phototherapy mask or the vibration motor in a smartwatch. The intensity and frequency of the vibration change with the breathing phase: during inhalation, the vibrator vibrates continuously at a stronger frequency (100Hz-200Hz) for 4 seconds, providing a clear tactile cue to begin inhaling; during breath-holding, the vibration stops completely for 7 seconds, alerting the user to maintain their current breathing state; during exhalation, the vibrator vibrates continuously at a weaker frequency (30Hz-80Hz) for 8 seconds, guiding the user to exhale slowly. The vibration signal has strong penetrating power, effectively conveying guidance information even when the user's attention is distracted. The differences in vibration at different stages allow users to clearly distinguish breathing steps, making it particularly suitable for use in noisy environments, avoiding interference from external sounds.

[0065] These three signals can be used individually or in combination. For example, the phototherapy mask 10 can simultaneously activate microcurrent stimulation and sound reminders. This can provide subconscious guidance through skin touch and clear breathing instructions through sound, strengthening the user's ability to follow the rhythm of deep breathing from multiple dimensions. This helps users relieve mental stress more quickly and effectively, ensuring that the phototherapy effect is not affected.

[0066] Reference Figure 2 When the deep breathing guidance intervention signal is a microcurrent stimulation signal, the output of the deep breathing guidance intervention signal includes steps S31-S32:

[0067] Step S31: Generate a target breathing rhythm based on the mental stress, wherein the target breathing rhythm includes a sequentially alternating inhalation phase, a switching interval, and an exhalation phase.

[0068] In this step, the system automatically generates a suitable target breathing rhythm based on the user's real-time stress level. For example, when the user's stress is relatively low, the target breathing rhythm might be set to 4 seconds of inhalation, 1 second of transition interval, and 6 seconds of exhalation; while when the stress level rises significantly, to enhance the relaxation effect, the rhythm might be adjusted to 3 seconds of inhalation, 1 second of transition interval, and 8 seconds of exhalation. This is because the body's sensitivity to breathing regulation varies under different levels of stress, and setting a targeted breathing rhythm allows the guidance to better match the user's current physiological state, improving the accuracy of the intervention.

[0069] Step S32: The wearable device's microcurrent stimulation module outputs a first frequency pulse current sequence during the inhalation phase and a second frequency pulse current sequence during the exhalation phase, pausing the current output during the switching interval to form a tactile interruption signal to guide the breathing switch. The first and second frequencies are dynamically set according to the mental stress.

[0070] Specifically, refer to Figure 1 and Figure 2 Step S32 can be divided into S321, S322 and S323.

[0071] In this step, the microcurrent stimulation module of the wearable device will output a corresponding pulse current sequence according to the target breathing rhythm.

[0072] Step S321: During the inhalation phase, the microcurrent stimulation module outputs a first frequency pulse current sequence. For example, during mild mental stress, the first frequency is set to 10 times / second. By stimulating the skin with relatively dense current pulses, the user is given a tactile signal of "start inhaling".

[0073] Step S322: When entering the switching interval, the current output is paused, forming a clear tactile interruption. This interruption allows the user to clearly perceive the transition of the breathing stage, prompting them to switch from inhalation to breath-holding in preparation for exhalation.

[0074] Step S323: During the exhalation phase, the microcurrent stimulation module outputs a second-frequency pulse current sequence. For mild mental stress, the second frequency can be set to 5 times / second, with a sparser pulse rhythm guiding the user to exhale slowly. When the level of mental stress increases, the first frequency may be increased to 12 times / second to enhance the urgency of the inhalation prompt, while the second frequency decreases to 3 times / second to strengthen the sense of relief during exhalation.

[0075] The first and second frequencies are dynamically set based on mental stress. This is because the greater the mental stress, the stronger the tactile guidance the body often needs to break the tension in its physiological state. A higher first frequency can more effectively stimulate the user's inhalation, while a slower second frequency guides the user to exhale fully. Combined with adjustments to the breathing rhythm, this gradually reduces heart rate and heart rate variability, relieving mental stress. Simultaneously, the tactile interruption signals during the switching intervals prevent signal confusion between different breathing stages, allowing the user to naturally adjust their breathing in accordance with the rhythm. Ultimately, this achieves physical and mental relaxation during phototherapy, ensuring its effectiveness.

[0076] Reference Figure 6 The microcurrent stimulation module includes at least two stimulation unit groups 121 arranged in a preset spatial path sequence. During the inhalation phase, each stimulation unit group 121 is activated sequentially in the forward sequence of the spatial path, forming a unidirectional tactile stimulation flow. During the exhalation phase, each stimulation unit group 121 is activated sequentially in the reverse sequence of the spatial path, forming a tactile stimulation flow in the opposite direction to that during the inhalation phase.

[0077] The microcurrent stimulation module includes at least two stimulation unit groups 121. Each stimulation unit group 121 can be an array composed of multiple microelectrode pads 1211, and the stimulation unit groups 121 are arranged in sequence according to a preset spatial path on the wearable device. The forward sequence of this preset spatial path can be from bottom to top, while the reverse sequence is from top to bottom. For example, on the inner side of the phototherapy mask 10, three stimulation units can be arranged along a path from near the mouth or cheek to near the forehead. For instance, the first group is near the corners of the mouth, the second group is located between the nostrils and the brow, and the third group is close to the forehead or temples. This bottom-to-top spatial path design conforms to the distribution characteristics of facial skin, enhances the immersive feeling of breathing guidance through tactile stimulation in a specific direction, and does not affect the wearing comfort of the mask. This spatial path design conforms to the natural direction of facial skin, ensuring that the stimulation signal is clearly perceived without affecting the wearing comfort of the mask.

[0078] During the inhalation phase, the system sequentially activates each stimulation unit group 121 along the forward path of the spatial pathway, forming a unidirectional tactile stimulation flow. For example, along the forward path from the cheekbone to the jawline, the first stimulation unit group closest to the mouth is activated first, lasting approximately one second before being deactivated. Next, the second stimulation unit group in the middle is activated, also lasting approximately one second before being deactivated. Finally, the third stimulation unit group closest to the forehead or temples is activated, lasting the remaining time. This sequential activation method allows the user to feel a tactile stimulation flow moving from the mouth towards the forehead or temples. This design is because during inhalation, the chest cavity expands and airflow rushes in; the unidirectional stimulation flow aligns with the directional sense of this physiological movement, reinforcing the conscious awareness of inhalation through tactile guidance, allowing the user to more naturally follow the rhythm and deepen their inhalation. Furthermore, this sense of flow evokes the association of "inhaling energy into the brain in one breath," naturally guiding the user to deepen their inhalation while clearly indicating that they are currently in the inhalation phase.

[0079] During the exhalation phase, the system activates each stimulation unit group 121 sequentially in reverse order of the spatial path, forming a tactile stimulation flow opposite to that of the inhalation phase. Taking the path from the mouth to the forehead or temples as an example, the reverse sequence first activates the third stimulation unit group closest to the forehead or temples, holding for approximately 2 seconds before deactivating. Next, it activates the second stimulation unit group in the middle, holding for approximately 2 seconds before deactivating. Finally, it activates the first stimulation unit group closest to the mouth, holding for the remaining time, thus forming a tactile stimulation flow moving from the forehead or temples towards the mouth. This is because during exhalation, the chest cavity contracts and air is expelled. The reverse stimulation flow matches the directional sense of the exhalation action, guiding the user to slow down the exhalation rhythm through tactile cues, allowing for more complete expulsion of air. Simultaneously, this tactile stimulation flow moving from the forehead to the mouth, combined with the sensation of "energy sinking and being expelled," guides the user to exhale slowly, allowing the user to clearly recognize the entry into the exhalation phase through the reverse flow.

[0080] Other wearable devices have adopted similar designs. For example, a smart neckband can have two sets of stimulation units along the front of the neck, from the collarbone to below the chin, with the spatial path moving upwards. During inhalation, the units at the collarbone are activated first in a forward sequence, followed by the units below the chin, creating an upward tactile flow to prompt inhalation; during exhalation, they are activated in reverse, creating a downward tactile flow to prompt exhalation. Another example is a smart eye mask, which has three sets of stimulation units along the area below the eye sockets, from the cheekbone to the brow bone, with the path moving upwards. During inhalation, they are activated in a forward sequence to create an upward stimulation flow, and during exhalation, they are activated in reverse to create a downward stimulation flow, guiding breathing through different flow directions.

[0081] This tactile stimulation flow, generated by the opposing activation of the spatial path of stimulation unit group 121, allows users to more intuitively perceive the transition between inhalation and exhalation, enhancing the immersion and rhythm of guided breathing. Compared to single-frequency pulsed current, the moving stimulation flow can mobilize tactile perception in more skin areas, reducing the user's adaptation to fixed stimulation, thereby improving the effectiveness of deep breathing guidance, helping users adjust to a relaxed state more quickly, and further ensuring the phototherapy effect.

[0082] Reference Figure 3 During a single inhalation phase and / or a single exhalation phase, the tactile stimulation flow traverses all stimulation unit groups 121 at least once in the direction corresponding to the breathing phase.

[0083] That is, during a single inhalation phase and / or a single exhalation phase, the tactile stimulation flow is allowed to completely traverse all stimulation unit groups 121 at least once in the direction of the corresponding breathing phase, i.e., once, twice, three times, four times or even more times, in order to form a continuous and rhythmic flowing tactile sensation and enhance the guidance of breathing.

[0084] Taking the phototherapy mask 10 as an example, three sets of stimulation units are set along the path from near the mouth or cheeks to near the forehead (both sides of the corners of the mouth, the middle of the bridge of the nose, and near the forehead or temples). In step S321, if a single inhalation phase lasts 6 seconds and the activation time of each stimulation unit is 1 second, then within these 6 seconds, the tactile stimulation flow will start from both sides of the corners of the mouth, reach the middle of the bridge of the nose after 1 second, and then reach the center of the forehead after another 1 second. The first round of traversal takes 3 seconds to complete, and the remaining 3 seconds will continue to start the second round of traversal from both sides of the corners of the mouth. In this way, two complete traversals are completed in one inhalation phase. This cyclical flow is like waves of tactile sensation surging from bottom to top, allowing the user to continuously feel the sensation of "energy being absorbed into the brain," constantly strengthening the awareness of the inhalation action, and prompting the user to inhale more deeply and for longer. If a single inhalation phase lasts 9 seconds, with an activation time of 1 second for each group, three complete traversals can be completed, forming three rounds of upward flowing tactile sensation, further deepening the user's perception of the inhalation rhythm.

[0085] In step S323, the same applies to the exhalation phase. Assuming a single exhalation phase lasts 8 seconds, each stimulation unit is activated for 1 second. One round of traversal is from the center of the forehead to the middle of the bridge of the nose and then to the sides of the mouth, which takes 3 seconds. Two complete rounds can be completed within 8 seconds. The remaining 2 seconds are used to start the third round from the center of the forehead, forming wave after wave of downward flowing sensation. Combined with the association of "energy sinking and being expelled", it guides the user to exhale slowly and fully, making the breathing rhythm more stable.

[0086] This embodiment uses a circulating tactile sensation to allow users to clearly feel continuous guidance throughout the breathing process, reducing rhythm disruption caused by interruptions in stimulation. The wave-like flow not only enhances tactile awareness but also allows users to more easily immerse themselves in the breathing rhythm, accurately distinguishing between inhalation and exhalation, thus enabling more effective deep breathing, relieving mental stress, and ensuring optimal performance in scenarios such as light therapy.

[0087] Furthermore, the number of complete traversals and the activation duration of a single stimulation unit group 121 are dynamically adjusted according to the mental stress. The higher the mental stress, the fewer the number of complete traversals in a single inhalation phase and / or a single exhalation phase, and the longer the activation duration of a single stimulation unit group 121.

[0088] Taking the phototherapy mask 10 as an example, there are 3 sets of stimulation units along the mouth or cheek area to the forehead area (both sides of the corners of the mouth, the middle of the bridge of the nose, and the forehead or temples).

[0089] It should be noted that in this solution, users' mental stress can be graded based on a "stress index (0-100 points)". A stress index of 51-65 indicates mild mental stress, 66-80 indicates moderate mental stress, and 81-100 indicates severe mental stress.

[0090] If mental stress is measured using the low-frequency / high-frequency ratio (LF / HF) of heart rate variability (HRV), then a LF / HF ratio of 2.5-3.5 indicates mild mental stress; a LF / HF ratio of 3.5-5 indicates moderate mental stress; and a LF / HF ratio greater than 5 indicates severe mental stress.

[0091] When the user is under mild stress, a single inhalation phase is set to 6 seconds, the activation time of a single stimulus unit group 121 is 1 second, and a complete cycle takes 3 seconds. Two cycles can be completed within 6 seconds, creating a rapid, upward-flowing tactile sensation. The high-frequency rhythmic cues stimulate the user's breathing power, helping them gradually relax. When the stress level increases to moderate, the single inhalation phase remains 6 seconds, but the activation time of a single stimulus unit group 121 is extended to 2 seconds. A complete cycle takes 6 seconds, and only one cycle can be completed within 6 seconds. The flow rhythm is slowed down to avoid exacerbating the user's tension with high-frequency stimulation. At the same time, the longer activation time allows the user to more clearly perceive the location of each stimulus group, enhancing the tactile sensation of "energy inhalation." If the mental stress reaches a high level, the activation time of a single stimulation unit group 121 increases to 3 seconds within 6 seconds of a single inhalation phase. A complete cycle takes 9 seconds, and a complete cycle cannot be completed within 6 seconds. Only the first two groups of units (3 seconds on both sides of the mouth and 3 seconds in the middle of the bridge of the nose) can be activated. Through slower and more focused stimulation, the user is guided to focus on the current breathing action and avoid anxiety caused by too fast a pace.

[0092] During the exhalation phase, for mild stress, each exhalation lasts 8 seconds, with a single stimulation unit group 121 activating for 1 second. Two complete cycles (from forehead to corners of the mouth) can be completed within 8 seconds, and the rapid downward flow helps users exhale quickly. For moderate stress, each exhalation lasts 8 seconds, with a single stimulation unit group 121 activating for 2 seconds. A complete cycle takes 6 seconds, and only one cycle can be completed within 8 seconds. The remaining 2 seconds are used to continuously activate the last group of units (both sides of the corners of the mouth), allowing users to exhale fully through prolonged stimulation. For severe stress, each exhalation lasts 8 seconds, with a single stimulation unit group 121 activating for 4 seconds. Only the first two groups of units (center of the forehead for 4 seconds, middle of the bridge of the nose for 4 seconds) can be activated within 8 seconds. The slow flow rhythm allows users enough time to release stress and avoids physical tension caused by rapid exhalation.

[0093] For the smart neckband, during mild mental stress, the single inhalation phase is 4 seconds, with each of the two stimulation units activating for 1 second, and two rounds of stimulation (from collarbone to chin) can be completed within 4 seconds; during moderate mental stress, the single activation duration is 2 seconds, and one round of stimulation can be completed within 4 seconds; during severe mental stress, the single activation duration is 3 seconds, and only the first unit (3 seconds at the collarbone) can be activated within 4 seconds, with the remaining 1 second for continued stimulation. The guiding rhythm is dynamically adjusted to match the mental stress state.

[0094] This dynamic adjustment mechanism in the embodiments of this application allows the rhythm of the tactile stimulation flow to change flexibly with the level of mental stress. When the user's mental stress is low, high-frequency stimulation can improve the guidance efficiency, while when the mental stress is high, low-frequency, long-duration stimulation can help the user focus on breathing, thereby more accurately relieving different levels of mental stress and ensuring the relaxation effect in scenarios such as light therapy.

[0095] Furthermore, the first frequency changes from the initial value by increasing by 2Hz every 0.5 seconds; the second frequency changes from the initial value by decreasing by 2Hz every 0.5 seconds.

[0096] Taking the inhalation phase of the phototherapy mask 10 as an example, when the user is under mild mental stress, a single inhalation phase lasts 6 seconds, with each of the three stimulation units (both sides of the corners of the mouth, the middle of the bridge of the nose, and the forehead or temples) activating for 1 second, completing two full cycles. Assuming the initial value of the first frequency is 8Hz, then in the first 0.5 seconds, the first frequency remains at 8Hz; in the second 0.5 seconds (i.e., 0.5-1 second), the first frequency increases to 10Hz, at which point the activation of the first unit (both sides of the corners of the mouth) ends, and the system switches to the second unit (the middle of the bridge of the nose); in the third 0.5 seconds (1-1.5 seconds), the first frequency continues to increase to 12Hz; and so on, increasing by 2Hz every 0.5 seconds, until the first frequency has increased to 32Hz by the 6th second. This gradual increase in the initial frequency allows users to feel the "intensity" of tactile stimulation gradually increase with the inhalation action. Combined with the upward tactile flow, it more vividly simulates the feeling of "energy being inhaled more and more fully," stimulating the user's instinct to deepen their inhalation.

[0097] Under moderate mental stress, only one complete traversal is completed within a 6-second inhalation phase, and the activation duration of a single stimulus unit group (121) is 2 seconds. The initial value of the first frequency is set to 6Hz. Therefore, from 0-0.5 seconds, the first frequency is 6Hz; from 0.5-1 second, it is 8Hz; from 1-1.5 seconds, it is 10Hz; from 1.5-2 seconds, it is 12Hz. At this point, the first unit group's activation ends, and the system switches to the second unit group. For the next 2 seconds, the first frequency continues to increase by 2Hz every 0.5 seconds. From 4-4.5 seconds, the third unit group activates, reaching a first frequency of 28Hz from 5.5-6 seconds. This slower traversal rhythm combined with the gradually increasing first frequency allows the user to clearly perceive the stimulus location while guiding the breathing to gradually deepen through frequency changes, avoiding tension caused by an excessively fast pace.

[0098] During the exhalation phase, under mild mental stress, a single exhalation lasts 8 seconds, completing two full cycles (from forehead to corners of the mouth), with each unit activated for 1 second. The initial value of the second frequency is set at 20Hz. From 0 to 0.5 seconds, the second frequency remains at 20Hz; from 0.5 to 1 second, the second frequency decreases to 18Hz, at which point the first unit group (center of the forehead) switches to the second unit group (middle of the bridge of the nose); from 1 to 1.5 seconds, the second frequency decreases to 16Hz; until at the 8th second, the second frequency drops to 4Hz. This gradual decrease in the second frequency, combined with the downward tactile flow, simulates the process of "gradual energy release," guiding the user to exhale slowly and fully.

[0099] Under moderate mental stress, one cycle is completed within 8 seconds during the exhalation phase, with each unit activating for 2 seconds, and the initial value of the second frequency is 16Hz. The frequency is 16Hz from 0-0.5 seconds, 14Hz from 0.5-1 second, 12Hz from 1-1.5 seconds, and 10Hz from 1.5-2 seconds. After switching to the next unit, the second frequency continues to decrease, reaching 0Hz (or maintaining the minimum safe frequency) by the 8th second. This slow decrease in the second frequency, combined with the extended activation duration, allows users to relax more easily during exhalation, avoiding physical tension caused by rapid exhalation.

[0100] If the wearable device is a smart neckband, during the inhalation phase, under mild mental stress, two passes (from collarbone to chin) are completed within 4 seconds. The initial value of the first frequency is 10Hz, increasing by 2Hz every 0.5 seconds. By the 4th second, the first frequency rises to 26Hz. The rapid increase in the first frequency, combined with the upward tactile flow, strengthens the inhalation power. During the exhalation phase, the second frequency starts at 18Hz and decreases by 2Hz every 0.5 seconds to guide a slow exhalation.

[0101] The dynamic changes in the first and second frequencies, along with the direction, number of traversals, and activation duration of the tactile stimulation flow, create a multi-dimensional synergy, allowing users to feel a "gradually increasing upward push" when inhaling and a "gradually decreasing downward pull" when exhaling. This multi-sensory interaction enhances the perception of breathing rhythm, enabling users to more accurately follow and adjust their breathing, thereby improving the effect of mental stress regulation.

[0102] Reference Figure 4 This method also includes step S4. Safety control of electrical stimulation, which specifically includes the following steps:

[0103] S41: Calculate the heart rate change rate ΔHR based on the physiological signal.

[0104] In step S41, based on the real-time collected physiological signals, the system first calculates the heart rate variability rate ΔHR, which is the fluctuation range of the heart rate per unit time. For example, if the user's initial heart rate is 70 beats / minute, and the heart rate rises to 85 beats / minute after 10 seconds, then ΔHR is (85-70) / 70≈21.4%. The preset safety threshold K is set according to the human body's tolerance range, usually 20%-30%, for example, K=25%.

[0105] S42: When ΔHR exceeds the preset safety threshold K, the output intensity of the first frequency pulse current and the second frequency pulse current is reduced proportionally.

[0106] When ΔHR exceeds the preset safety threshold K, the system will proportionally reduce the output intensity of the first and second frequency pulse currents. Taking the phototherapy mask 10 as an example, if the first frequency during the inhalation phase under mild mental stress originally increases from 8Hz, and the pulse current output intensity is 100% of the baseline value (10μA-50μA), when ΔHR reaches 26% (exceeding K=25%), the pulse current output intensity may drop to 80% of the baseline value, reducing the tactile stimulation felt by the user to prevent the heart rate from rising further due to excessive stimulation. Similarly, the pulse current output intensity of the second frequency during the exhalation phase will also be reduced proportionally to ensure that the overall stimulation intensity matches the user's current heart rate.

[0107] S43: When ΔHR continues to exceed the safety threshold K for T seconds, the microcurrent stimulation signal output is paused.

[0108] When the ΔHR (Heart Rate Change) consistently exceeds the safety threshold K for T seconds (T can be set to 5-10 seconds, e.g., T=8 seconds), the system will pause the microcurrent stimulation signal output. For example, during phototherapy, if a user is highly sensitive to current stimulation and their heart rate variability (ΔHR) remains at 28% for 8 seconds, pausing stimulation at this point completely avoids excessive stimulation on the body, allowing time for the heart rate to recover. Once the ΔHR falls below the safety threshold K, the system can gradually resume microcurrent stimulation based on the user's condition, starting with a lower initial frequency and intensity to ensure safety.

[0109] The method in this application embodiment, by monitoring the heart rate change rate ΔHR in real time, dynamically adjusts the stimulation intensity or even pauses the stimulation. This can prevent abnormal heart rate fluctuations caused by microcurrent stimulation and intervene in a timely manner when the user shows signs of discomfort. This allows the entire mental stress regulation process to be carried out within a safe and controllable range, improving the user's sense of security and comfort.

[0110] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor 13, implements the physiological feedback mental stress regulation method applied to the physiotherapy process as described in any of the preceding embodiments.

[0111] The computer-readable storage medium provided in this application embodiment is a carrier capable of storing computer programs, such as a USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. When the computer program stored in this storage medium is executed by the processor 13, it will run according to the steps of the physiological feedback mental stress regulation method applied to the physiotherapy process in any of the above embodiments.

[0112] Reference Figure 5 and Figure 6This application also provides a wearable device for regulating mental stress, including a physiological signal sensor 11, an intervention signal output module 12, and a processor 13.

[0113] The physiological signal sensor 11 is used to collect the user's physiological signals in real time. Taking the phototherapy mask 10 as an example, the physiological signal sensor 11 can be integrated into the inner side of the mask where it contacts the skin (such as the forehead, temples, or jawline). It is usually a heart rate sensor, which can continuously capture the user's heart rate and heart rate variability data. This data is a key basis for judging mental stress, because changes in mental stress directly affect the fluctuation pattern of heart rate. For example, when mental stress increases, the heart rate increases and heart rate variability decreases. The sensor converts these subtle changes into electrical signals through high-precision acquisition, providing raw data for subsequent processing.

[0114] The intervention signal output module 12 is used to output a deep breathing guidance intervention signal. The form of the intervention signal output module 12 can be flexibly designed according to the device type. For the phototherapy mask 10, this module may include one or more of a microcurrent stimulation unit, a small speaker, and a vibrator. The microcurrent stimulation unit consists of a group 121 of stimulation units arranged along a preset path (such as from near the mouth or cheek to near the forehead), which can form a tactile stimulation flow through current pulses; the speaker can play gentle prompts or voice commands; and the vibrator transmits the breathing rhythm through regular vibrations. In devices such as smartwatches, the intervention signal output module 12 can use screen animation, device vibration, and audio from connected headphones to guide the user to adjust their breathing in multiple dimensions.

[0115] The processor 13 is communicatively connected to the physiological signal sensor 11 and the intervention signal output module 12. The processor 13 is configured to determine in real-time whether the user's mental stress exceeds a preset threshold based on the physiological signals. When the mental stress exceeds the preset threshold, the processor 13 controls the intervention signal output module 12 to output the deep breathing guidance intervention signal. After the device is started, the processor 13 receives heart rate and heart rate variability data transmitted from the physiological signal sensor 11 in real time, calculates the user's current mental stress level using a built-in mental stress assessment model, and compares it with the preset threshold. If the mental stress level is determined to exceed the threshold, the processor 13 immediately sends control commands to the intervention signal output module 12. For example, it controls the microcurrent stimulation module to activate stimulation unit group 121 in a forward sequence (corresponding to the inhalation phase) and in a reverse sequence (corresponding to the exhalation phase), while adjusting parameters such as current frequency and activation duration; or it triggers the sound and vibration modules to work synchronously, forming a coordinated guidance. Furthermore, the processor 13 continuously monitors changes in physiological signals and performs electrical stimulation safety adjustments based on the heart rate change rate ΔHR to ensure the safety of the intervention process.

[0116] The wearable device for regulating mental stress in this application includes the physiological feedback method for regulating mental stress applied in the physiotherapy process described in any of the above embodiments, and therefore has the beneficial effects brought about by the physiological feedback method for regulating mental stress applied in the physiotherapy process described in any of the above embodiments, which will not be repeated here.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A physiological feedback stress modulation method applied to a physiotherapy process, characterized by, Includes the following steps: Collect physiological signals: Collect users' physiological signals in real time through wearable devices; Mental stress assessment: Based on the physiological signals, determine in real time whether the user's mental stress exceeds a preset threshold; Output intervention signal: If the mental stress is determined to exceed the preset threshold, a deep breathing guidance intervention signal is output through the wearable device.

2. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 1, characterized in that, The deep breathing guidance intervention signal includes at least one of microcurrent stimulation signal, sound reminder signal, or vibration reminder signal.

3. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 2, characterized in that, When the deep breathing guidance intervention signal is a microcurrent stimulation signal, the output of the deep breathing guidance intervention signal includes the following steps: A target breathing rhythm is generated based on the aforementioned mental stress, and the target breathing rhythm includes a sequentially alternating inhalation phase, a switching interval, and an exhalation phase. The wearable device’s microcurrent stimulation module outputs a first frequency pulse current sequence during the inhalation phase and a second frequency pulse current sequence during the exhalation phase, and pauses the current output during the switching interval to form a tactile interruption signal to guide the breathing switch. The first frequency and the second frequency are dynamically set according to the mental stress.

4. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 3, characterized in that, The microcurrent stimulation module includes at least two stimulation unit groups arranged in a preset spatial path order; During the inhalation phase, each of the stimulation unit groups is activated sequentially according to the forward sequence of the spatial path, forming a unidirectional tactile stimulation flow; During the exhalation phase, each of the stimulation unit groups is activated sequentially in the reverse sequence of the spatial path, forming a tactile stimulation flow in the opposite direction to that during the inhalation phase.

5. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 4, characterized in that, During a single inhalation phase and / or a single exhalation phase, the tactile stimulation flow traverses all the stimulation unit groups at least once in the direction corresponding to the breathing phase.

6. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 5, characterized in that, The number of complete traversals and the activation duration of a single stimulation unit group are dynamically adjusted according to the mental stress. Furthermore, the higher the mental stress, the fewer the number of complete traversals in a single inhalation phase and / or a single exhalation phase, and the longer the activation duration of a single stimulation unit group.

7. The method for psychosomatic stress adjustment using physiological feedback applied in the process of physiotherapy according to claim 3, characterized by, The first frequency changes from the initial value by increasing by 2 Hz every 0.5 seconds; the second frequency changes from the initial value by decreasing by 2 Hz every 0.5 seconds.

8. Physiological feedback stress regulation method applied to a physiotherapy session according to any one of claims 3-7, characterized in that, It also includes safety control procedures for electrical stimulation: Based on the physiological signals, the heart rate variability ΔHR is calculated; When ΔHR exceeds the preset safety threshold K, the output intensity of the first frequency pulse current and the second frequency pulse current is reduced proportionally. When ΔHR continues to exceed the safety threshold K for T seconds, the microcurrent stimulation signal output is paused.

9. A computer readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the physiological feedback mental stress regulation method applied to the physiotherapy process as described in any one of claims 1-7.

10. A mental stress regulating wearable device, characterized in that, include: Physiological signal sensors are used to collect users' physiological signals in real time; Intervention signal output module, used to output deep breathing guidance intervention signal; The processor is communicatively connected to the physiological signal sensor and the intervention signal output module. The processor is configured to determine in real time whether the user's mental stress exceeds a preset threshold based on the physiological signal, and when the mental stress exceeds the preset threshold, control the intervention signal output module to output the deep breathing guidance intervention signal.

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