Heart rate linkage anti-depression phototherapy lamp and phototherapy method

Abstract

The invention discloses a heart rate linkage anti-depression phototherapy lamp and a phototherapy method, and relates to the technical field of phototherapy equipment, the heart rate linkage anti-depression phototherapy lamp comprises a heart rate monitoring module, a main control module and an illumination output module; the heart rate and heart rate variability data of a user are collected in real time through a heart rate monitoring module, a main control module generates a targeted illumination adjustment instruction based on a baseline heart rate recorded during first use in combination with a real-time heart rate deviation value and a built-in heart rate-illumination mapping model, and an illumination output module is controlled to dynamically adjust illumination intensity, color temperature and flicker frequency, so that the illumination intensity, color temperature and flicker frequency of the user are adjusted. The mechanism enables the phototherapy parameters to directly respond to the real-time physiological status of the user, solves the problem that traditional equipment cannot adapt to individual differences and status changes, meets personalized treatment requirements, shortens the interval when the heart rate fluctuates severely in combination with a dynamic adjustment mechanism of a preset time interval so as to achieve quick response, prolongs the interval when the heart rate is stable so as to reduce energy consumption, and improves the user experience. Therefore, the phototherapy parameters are always matched with the current state of the user, and the phototherapy effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of phototherapy equipment, and in particular to a heart rate-linked antidepressant phototherapy lamp and a phototherapy method. Background Art

[0002] Light therapy is an important non-drug treatment for depression. It regulates the secretion of neurotransmitters and biological clock rhythms in the human body through light exposure with specific parameters. Its effectiveness has been confirmed by many clinical studies. "Bright light therapy for major depressive disorder" analyzed several studies on bright light therapy for major depression. The results showed that light therapy is effective in treating depression, especially when used as an adjunct to drug treatment, and can significantly improve depressive symptoms.

[0003] Heart rate and heart rate variability, as key indicators reflecting the autonomic nervous function of the human body, are closely related to the depressive state. Patients with depression often have abnormal heart rate baselines and changes in fluctuation patterns, and changes in heart rate can reflect emotional fluctuations in real time, providing an ideal physiological basis for adjusting phototherapy parameters. However, there is currently no technology to achieve a dynamic correlation between heart rate and phototherapy parameters, and related equipment is still in the static adjustment stage, which restricts the further improvement of phototherapy effects. For example, in the prior art, although there are heart rate-controlled light-improving sleep devices that combine heart rate data, such as the heart rate-controlled light-improving sleep device with application number CN201821516232.2, which is aimed at sleep regulation for healthy people, does not build a mapping model based on the heart rate-emotion correlation characteristics of patients with depression, and does not introduce heart rate variability data and PID smoothing adjustment. In summary, the existing anti-depressant phototherapy equipment still has the following significant limitations in application:

[0004] 1. Lack of personalization. Most products use fixed lighting parameters or only support basic manual adjustment. They cannot adapt to the individual differences and real-time physiological changes of different patients, affecting the accuracy of treatment.

[0005] 2. There is a lack of linkage mechanism with physiological indicators. The adjustment of existing equipment mostly relies on ambient light or preset programs. It fails to combine core physiological signals that reflect emotional state, such as heart rate, for dynamic adaptation, making it difficult to achieve precise intervention. Summary of the Invention

[0006] The purpose of the present invention is to provide a heart rate-linked antidepressant phototherapy lamp and phototherapy method to solve the problem raised in the above background technology that the existing phototherapy equipment lacks a physiological feedback regulation mechanism and cannot adapt to the user's real-time emotional state changes.

[0007] To this end, the present invention provides a heart rate-linked antidepressant light therapy lamp, comprising a heart rate monitoring module, a main control module, and a light output module;

[0008] The heart rate monitoring module is electrically connected to the main control module and is used to collect the user's heart rate data and heart rate variability data in real time and transmit the collected data to the main control module;

[0009] The main control module includes a Kalman filter unit, a heart rate-light mapping model unit, a PID control unit and a single-chip microcomputer control unit. The Kalman filter unit, the heart rate-light mapping model unit and the PID control unit are all electrically connected to the single-chip microcomputer control unit. The PID control unit is used to reduce noise on the raw data collected by the heart rate monitoring module. The Kalman filter unit is used to optimize the state equation parameters according to the low-frequency fluctuation characteristics of the heart rate signal of patients with depression. The heart rate-light mapping model unit is used to directly match the interval in the model after receiving the filtered heart rate data to generate a light adjustment instruction. The single-chip microcomputer control unit is used to work in coordination with the Kalman filter unit, the heart rate-light mapping model unit and the PID control unit;

[0010] The light output module is telecommunication-connected to the main control module, and is used to output phototherapy light with specific parameters according to the light adjustment instructions; the data collected by the heart rate monitoring module includes heart rate data and heart rate variability data, and the parameters of the phototherapy light include light intensity, color temperature and flickering frequency.

[0011] A heart rate-linked antidepressant light therapy method comprises the following steps:

[0012] S1. Initialization: Record the user's average heart rate within 3 minutes of first use as the baseline heart rate;

[0013] S2. Real-time monitoring: Collect the user's real-time heart rate data and heart rate variability data through the heart rate monitoring module;

[0014] S3, data processing: performing noise reduction on the collected heart rate data, optimizing the state equation parameters, and calculating the deviation value from the baseline heart rate;

[0015] S4, parameter mapping: based on the calculated heart rate value and its deviation from the baseline heart rate, the calculated heart rate value is compared with the preset heart rate-light mapping model to analyze and determine the target light parameters;

[0016] S5. Light output: The determined target light parameters are transmitted to the light output module, the light source is controlled to output light therapy light that meets the target parameters, and a smooth parameter transition is achieved through the PID control unit;

[0017] S6. Dynamic adjustment: Repeat steps S2-S5 at every preset time interval to dynamically adjust the lighting parameters in real time. The preset time interval is 30-120 seconds, and the lighting parameters are dynamically adjusted according to the fluctuation amplitude of the heart rate. When the fluctuation amplitude of the heart rate is greater than 20 beats / minute, the interval is shortened to 30 seconds.

[0018] When the fluctuation amplitude is ≤10 times / minute, the interval is extended to 120 seconds;

[0019] When the heart rate fluctuation amplitude is 10<≤20 beats per minute, the interval is set to 60 seconds.

[0020] Preferably, the heart rate-light mapping model is constructed by machine learning training clinical heart rate-emotion correlation data, wherein the clinical data is derived from a dedicated sample of depression patients and includes the correspondence between heart rate intervals and light parameters:

[0021] When the heart rate is less than 50 beats / minute, the light output module outputs flicker-free light with a light intensity of 8000-10000lx and a color temperature of 5500-6500K;

[0022] When 50≤heart rate<65 beats / minute, the light output module outputs flicker-free light with a light intensity of 6000-8000lx and a color temperature of 4500-5500K;

[0023] When the heart rate is 65 ≤ < 90 beats / minute, the light output module outputs flicker-free light with a light intensity of 3000-5000lx and a color temperature of 3500-4500K;

[0024] When the heart rate is 90 ≤ < 110 beats / minute, the light output module outputs a flashing light with a light intensity of 2000-3000lx, a color temperature of 2700-3500K, and a frequency of 0.3-0.5Hz;

[0025] When the heart rate is ≥110 beats / minute, the light output module outputs flashing light with a light intensity of 1000-2000lx, a color temperature of 2200-2700K, and a frequency of 0.2-0.3Hz.

[0026] The present invention proposes a heart rate-linked antidepressant light therapy lamp and light therapy method, which have the following beneficial effects:

[0027] The heart rate monitoring module collects the user's heart rate and heart rate variability data in real time. The main control module generates targeted light adjustment instructions based on the baseline heart rate recorded at the time of first use, combined with the real-time heart rate deviation value and the built-in heart rate-light mapping model. It controls the light output module to dynamically adjust the light intensity, color temperature and flashing frequency. This mechanism enables light therapy parameters to directly respond to the user's real-time physiological state, solving the problem that traditional equipment cannot adapt to individual differences and state changes, meeting personalized treatment needs, and improving the accuracy of light therapy.

[0028] The heart rate-light mapping model and dynamic adjustment mechanism, built based on clinical data from patients with depression, not only ensures the clinical validity of the parameters but also achieves dynamic linkage with real-time heart rate, ensuring that light therapy parameters always match the user's current state. This makes it suitable for adjunctive treatment of all types of depression patients, and is particularly effective for those who are sensitive to light parameters and have personalized needs, thus possessing high clinical application and promotion value.

[0029] The Kalman filter unit in the main control module can effectively eliminate noise interference in the heart rate monitoring data, ensure the accuracy of the heart rate data, and provide a reliable basis for subsequent parameter mapping; the PID control unit can realize smooth adjustment of the lighting parameters according to the heart rate change rate, avoiding the discomfort caused to the user by sudden parameter changes, and improving the user's comfort. The lighting output module can quickly respond to the adjustment instructions of the main control module, combined with the dynamic adjustment mechanism of the preset time interval, shorten the interval for rapid response when the heart rate fluctuates violently, and extend the interval to reduce energy consumption when it is stable, balancing the adjustment accuracy and equipment efficiency, ensuring that the phototherapy parameters always match the user's current state, and further improving the phototherapy effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 is a system architecture diagram of the light therapy system of the present invention;

[0032] Figure 2 This is a heart rate-light parameter mapping relationship diagram of the present invention;

[0033] Figure 3 Flowchart of the phototherapy method of the present invention. DETAILED DESCRIPTION

[0034] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention are described in detail through specific embodiments.

[0036] Example:

[0037] See also Figure 1 , the present invention provides a heart rate-linked antidepressant phototherapy lamp, comprising a heart rate monitoring module, a main control module and a light output module;

[0038] The heart rate monitoring module is electrically connected to the main control module and is used to collect the user's heart rate data and heart rate variability data in real time and transmit the collected data to the main control module; the data collected by the heart rate monitoring module includes heart rate data and heart rate variability data;

[0039] The main control module includes a Kalman filter unit, a heart rate-light mapping model unit, a PID control unit and a single-chip microcomputer control unit. The Kalman filter unit, the heart rate-light mapping model unit and the PID control unit are all electrically connected to the single-chip microcomputer control unit. The PID control unit is used to reduce noise on the raw data collected by the heart rate monitoring module. The Kalman filter unit is used to optimize the state equation parameters based on the low-frequency fluctuation characteristics of the heart rate signal of patients with depression. The heart rate-light mapping model unit is used to directly match the interval in the model after receiving the filtered heart rate data and generate light adjustment instructions. The single-chip microcomputer control unit is used to coordinate the work of the Kalman filter unit, the heart rate-light mapping model unit and the PID control unit;

[0040] The light output module is connected to the main control module by telecommunication, and is used to output phototherapy light with specific parameters according to the light adjustment instruction; the parameters of the phototherapy light include light intensity, color temperature and flickering frequency.

[0041] In this embodiment, the heart rate monitoring module uses a heart rate sensor and a photoplethysmography sensor integrated with infrared and red light sources, supports heart rate and heart rate variability data collection, has a sampling frequency of 100Hz, and has an anti-motion interference capability of ≤±3 times / minute, which can achieve high anti-motion interference capability and can accurately collect heart rate data and heart rate variability data;

[0042] The Kalman filter unit optimizes the state equation parameters based on the low-frequency fluctuation characteristics of the heart rate signals of patients with depression, such as smoother fluctuations than those of healthy people. The process noise covariance Q is set to 0.01, and the measurement noise covariance R is set to 0.1. This makes the filtered data have a tracking error of ≤2 times / minute for slow heart rate changes, such as from 85 beats / minute within 5 minutes, which belongs to the range of 65≤heart rate<90, corresponding to 3500-4500K, to 95 beats / minute within 5 minutes, which belongs to the range of 90≤heart rate<110, corresponding to 2700-3500K, which is significantly better than the general Kalman filter algorithm with an error of ≥5 times / minute.

[0043] The PID control unit is used to reduce the noise of the raw data collected by the heart rate monitoring module and eliminate errors caused by factors such as motion interference and ambient light. When the heart rate change rate is greater than 10 times / minute, such as rising from 80 times to 100 times within 1 minute, the proportional coefficient Kp = 0.2 and the integral coefficient Ki = 0.03, and the lighting parameters are controlled to transition to the target value within 8-10 seconds; when the heart rate change rate is ≤10 times / minute, Kp = 0.4, Ki = 0.06, and the transition time is shortened to 5-7 seconds to avoid eye discomfort caused by sudden changes in parameters.

[0044] See Figure 2 and Figure 3 , a heart rate-linked antidepressant light therapy method, comprising the following steps:

[0045] S1. Initialization: Record the user's average heart rate within 3 minutes of first use as the baseline heart rate;

[0046] S2. Real-time monitoring: Collect the user's real-time heart rate data and heart rate variability data through the heart rate monitoring module;

[0047] S3, data processing: performing noise reduction on the collected heart rate data, optimizing the state equation parameters, and calculating the deviation value from the baseline heart rate;

[0048] S4, parameter mapping: based on the calculated heart rate value and its deviation from the baseline heart rate, the calculated heart rate value is compared with the preset heart rate-light mapping model to analyze and determine the target light parameters;

[0049] S5. Light output: The determined target light parameters are transmitted to the light output module, the light source is controlled to output light therapy light that meets the target parameters, and a smooth parameter transition is achieved through the PID control unit;

[0050] S6. Dynamic adjustment: Repeat steps S2-S5 at every preset time interval to dynamically adjust the lighting parameters in real time. The preset time interval is 30-120 seconds, and the lighting parameters are dynamically adjusted according to the fluctuation amplitude of the heart rate. When the fluctuation amplitude of the heart rate is greater than 20 beats / minute, the interval is shortened to 30 seconds.

[0051] When the fluctuation amplitude is ≤10 times / minute, the interval is extended to 120 seconds;

[0052] When the heart rate fluctuation amplitude is 10<≤20 beats per minute, the interval is set to 60 seconds.

[0053] The heart rate-light mapping model is constructed through machine learning training of clinical heart rate-emotion correlation data. The clinical data comes from a dedicated sample of depression patients and includes the correspondence between heart rate ranges and light parameters:

[0054] When the heart rate is less than 50 beats / minute, the light output module outputs flicker-free light with a light intensity of 8000-10000lx and a color temperature of 5500-6500K;

[0055] When 50≤heart rate<65 beats / minute, the light output module outputs flicker-free light with a light intensity of 6000-8000lx and a color temperature of 4500-5500K;

[0056] When the heart rate is 65 ≤ < 90 beats / minute, the light output module outputs flicker-free light with a light intensity of 3000-5000lx and a color temperature of 3500-4500K;

[0057] When the heart rate is 90 ≤ < 110 beats / minute, the light output module outputs a flashing light with a light intensity of 2000-3000lx, a color temperature of 2700-3500K, and a frequency of 0.3-0.5Hz;

[0058] When the heart rate is ≥110 beats / minute, the light output module outputs flashing light with a light intensity of 1000-2000lx, a color temperature of 2200-2700K, and a frequency of 0.2-0.3Hz;

[0059] When using this embodiment, the heart rate-light mapping model unit does not simply use fixed parameters, but systematically integrates the optimal light therapy data related to heart rate from multiple public clinical studies, and performs interval adaptation for the heart rate-emotion correlation characteristics of patients with depression to form a scientific parameter correspondence. This integration process not only ensures the clinical effectiveness of the parameters, but also realizes dynamic linkage with the real-time heart rate based on verified research results, making up for the shortcomings of static parameters in existing research, so that the light therapy plan has both scientific and personalized adjustment capabilities. After receiving the filtered heart rate data, the main control module directly matches the interval in the model to generate light adjustment instructions.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A heart rate-linked antidepressant light therapy lamp, characterized by: Including heart rate monitoring module, main control module and light output module; The heart rate monitoring module is electrically connected to the main control module and is used to collect the user's heart rate data and heart rate variability data in real time and transmit the collected data to the main control module; The main control module includes a Kalman filter unit, a heart rate-light mapping model unit, a PID control unit and a single-chip microcomputer control unit. The Kalman filter unit, the heart rate-light mapping model unit and the PID control unit are all electrically connected to the single-chip microcomputer control unit. The PID control unit is used to reduce noise on the raw data collected by the heart rate monitoring module. The Kalman filter unit is used to optimize the state equation parameters according to the low-frequency fluctuation characteristics of the heart rate signal of patients with depression. The heart rate-light mapping model unit is used to directly match the interval in the model after receiving the filtered heart rate data to generate a light adjustment instruction. The single-chip microcomputer control unit is used to work in coordination with the Kalman filter unit, the heart rate-light mapping model unit and the PID control unit; The light output module is electrically connected to the main control module and is used to output phototherapy light with specific parameters according to the light adjustment instruction. The data collected by the heart rate monitoring module includes heart rate data and heart rate variability data. The parameters of the phototherapy light include light intensity, color temperature and flickering frequency.

2. The heart rate-linked antidepressant phototherapy method according to claim 1, characterized in that: The following steps are involved: S1. Initialization: Record the user's average heart rate within 3 minutes of first use as the baseline heart rate; S2. Real-time monitoring: Collect the user's real-time heart rate data and heart rate variability data through the heart rate monitoring module; S3, data processing: performing noise reduction on the collected heart rate data, optimizing the state equation parameters, and calculating the deviation value from the baseline heart rate; S4, parameter mapping: based on the calculated heart rate value and its deviation from the baseline heart rate, the calculated heart rate value is compared with the preset heart rate-light mapping model to analyze and determine the target light parameters; S5. Light output: The determined target light parameters are transmitted to the light output module, the light source is controlled to output light therapy light that meets the target parameters, and a smooth parameter transition is achieved through the PID control unit; S6. Dynamic adjustment: Repeat steps S2-S5 at every preset time interval to dynamically adjust the lighting parameters in real time. The preset time interval is 30-120 seconds, and the lighting parameters are dynamically adjusted according to the fluctuation amplitude of the heart rate. When the fluctuation amplitude of the heart rate is greater than 20 beats / minute, the interval is shortened to 30 seconds. When the fluctuation amplitude is ≤10 times / minute, the interval is extended to 120 seconds; When 10<heart rate fluctuation amplitude ≤ 20 beats per minute, the interval is set to 60 seconds.

3. The heart rate-linked antidepressant phototherapy method according to claim 2, characterized in that: The heart rate-light mapping model is constructed by machine learning training clinical heart rate-emotion correlation data. The clinical data comes from a dedicated sample of depression patients and contains the correspondence between heart rate intervals and light parameters: When the heart rate is less than 50 beats / minute, the light output module outputs flicker-free light with a light intensity of 8000-10000lx and a color temperature of 5500-6500K; When 50≤heart rate<65 beats / minute, the light output module outputs flicker-free light with a light intensity of 6000-8000lx and a color temperature of 4500-5500K; When the heart rate is 65 ≤ < 90 beats / minute, the light output module outputs flicker-free light with a light intensity of 3000-5000lx and a color temperature of 3500-4500K; When the heart rate is 90 ≤ < 110 beats / minute, the light output module outputs a flashing light with a light intensity of 2000-3000lx, a color temperature of 2700-3500K, and a frequency of 0.3-0.5Hz; When the heart rate is ≥110 beats / minute, the light output module outputs flashing light with a light intensity of 1000-2000lx, a color temperature of 2200-2700K, and a frequency of 0.2-0.3Hz.

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