Method and system for controlling LED light source capable of supplementing calcium

Abstract

The invention relates to the technical field of control scheme design of an LED light source capable of supplementing calcium, in particular to a control method and system of the LED light source capable of supplementing calcium. The method comprises the following steps: acquiring vitamin D synthesis demand parameters of a user; calculating a target UVB radiation dose based on the parameters; and the output of the UVB-LED is dynamically adjusted. The core innovation lies in that firstly, a serum index-optical dose dynamic mapping model is established, and accurate personalized control is realized through a metabolic coefficient compensation mechanism; secondly, a segmented power strategy is adopted to cooperate with red light irradiation, so that the calcium deposition efficiency is improved while the skin safety is guaranteed; meanwhile, position offset compensation and erythema effect monitoring are integrated, and dose reliability in a mobile scene is ensured. Finally, a closed-loop control system of detection-calculation-execution-optimization is formed, and the calcium supplement efficiency and safety of different crowds are remarkably improved. The technology is suitable for the fields of household illumination, medical rehabilitation, health management and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control scheme design of calcium-supplementable LED light sources, and particularly relates to a control method and system of a calcium-supplementable LED light source. BACKGROUND

[0002] Current vitamin D supplementation mainly relies on oral preparations and natural light, which has significant limitations. Oral supplements need to be metabolized by the liver, and the bioavailability is restricted by the individual's digestive absorption capacity, and long-term use may cause the risk of abnormal elevation of blood calcium. Natural light is affected by season, geographical location and outdoor activity time, and groups such as indoor workers and the elderly generally have insufficient sunlight. Traditional artificial calcium supplement light sources such as mercury lamp type UVB equipment can promote skin synthesis of vitamin D, but have defects such as impure spectrum containing ultraviolet C band, high energy consumption, bulky volume, and poor applicability in home scenarios. In recent years, UVB-LED light sources have been applied in the field of pet breeding, but their control strategies are only designed for the physiological characteristics of cold-blooded animals, lacking personalized dose regulation mechanisms for humans: fixed power output mode cannot adapt to the metabolic differences of different skin colors and age groups; lack of real-time safety monitoring easily leads to skin burns; the dose deviation caused by position offset has not been solved for a long time. The market urgently needs an intelligent calcium supplement light source system that can accurately match human needs and has dynamic adjustment capability.

[0003] Therefore, the prior art still needs further development. SUMMARY

[0004] The purpose of the present application is to overcome the above technical deficiencies and provide a control method and system of a calcium-supplementable LED light source to solve the problems existing in the prior art.

[0005] To achieve the above technical purpose, according to the first aspect of the present application, the present application provides a control method of a calcium-supplementable LED light source, comprising: S100, obtaining user vitamin D synthesis requirement parameters; S200, calculating a target UVB radiation dose based on the requirement parameters; S300, dynamically adjusting the output power and irradiation time of the UVB-LED module according to the target UVB radiation dose.

[0006] Specifically, the vitamin D synthesis requirement parameters include at least one of the following: user serum vitamin D concentration detection data; user skin color type code; user input expected vitamin D supplement amount; environmental ultraviolet intensity index.

[0007] Specifically, the target UVB radiation dose is calculated by the following formula: Wherein: : target UVB radiation dose; : user metabolic coefficient; : target serum vitamin D concentration threshold; : current serum vitamin D concentration; : effective irradiated skin area.

[0008] Specifically, the metabolic coefficient k is dynamically corrected according to the user's age and body mass index: Wherein: : basal metabolic coefficient; : user age; : first preset age reference value; : user body mass index; : first preset body mass index reference value; : first preset compensation coefficient.

[0009] Specifically, the dynamic adjustment adopts a segmented control strategy: The starting stage outputs at a first preset power ratio; The maintenance stage adjusts the power according to the skin temperature feedback to maintain the temperature in a preset safe interval; The end stage gradually reduces the power according to a preset gradient.

[0010] Specifically, in the maintenance stage, the erythema effect is monitored in real time, and the power is automatically reduced when the cumulative erythema index exceeds a first preset safety threshold, the erythema index is calculated by the following formula: Wherein: : cumulative erythema effect index; : real-time UVB radiation power; : wavelength sensitivity compensation function.

[0011] Specifically, the visible light LED module outputs red light in cooperation, and a ratio of a red light power to a UVB power is a preset cooperation ratio.

[0012] Specifically, when it is detected that the user moves beyond the preset irradiation area, the power is adjusted according to the following formula: wherein: : adjusted power; : original set power; : reference irradiation distance; : position offset; : second preset compensation coefficient.

[0013] Specifically, a dose optimization suggestion is generated according to historical irradiation data, and when a deviation of an actual vitamin D improvement rate from an expected rate is greater than a preset deviation threshold for a continuous period of time, adjustment of a metabolic coefficient k is prompted.

[0014] According to a second aspect of the present application, a control system of a calcium supplementable LED light source is provided, comprising: a biological feedback signal acquisition module for acquiring user physiological parameters and environmental data; a dose calculation engine for executing the dose calculation formula; a multi-spectrum control module comprising an independently driven UVB-LED unit and a red light LED unit; a safety monitoring module for monitoring skin temperature and erythema effect in real time and adjusting power; a position tracking module for outputting a user position offset to the dose calculation engine.

[0015] Beneficial effects: The present application solves the pain points of the existing calcium supplement light source through multi-dimensional technical innovation: 1. Precision of individualized calcium supplementation is improved: based on serum indicators, skin color coding and other multi-source parameters, the target dose is dynamically calculated, breaking through the limitations of the traditional fixed dose mode. The metabolic coefficient is automatically compensated according to age and constitution, significantly reducing the difference in vitamin D synthesis efficiency among different groups. Clinical tests have shown that this scheme has improved the target concentration achievement rate to an excellent level, completely solving the problem of insufficient supplementation for people with dark skin and the elderly.

[0016] 2. Safety and efficacy synergy optimization breakthrough: In the original segmented control strategy, pre-activation in the start-up stage avoids thermal shock, temperature control in the maintenance stage ensures continuous high-efficiency response, and gradual power reduction in the end stage prevents skin stress damage. The real-time monitoring model of erythema effect quantifies the risk of photobiology control, combined with position bias dynamic compensation algorithm, to ensure the high stability of effective radiation dose in mobile scenarios, reducing the incidence of adverse reactions to below the industry benchmark level.

[0017] 3. Long-term health management capability upgrade: The adaptive optimization mechanism driven by historical data continuously corrects individual metabolic parameter deviations. Red light synergistic irradiation technology stimulates subcutaneous microcirculation, enhances the bioavailability of vitamin D transformation and calcium deposition, and forms an efficient synergy between physical phototherapy and biochemical metabolism.

[0018] 4. Application scenario expansion: Modular system architecture supports deep integration with household lighting devices, and through biofeedback closed-loop control, it realizes the scene migration from professional medical treatment to daily health management. Compared with traditional devices, it significantly shortens the single irradiation time and reduces energy consumption while maintaining the same calcium supplement efficiency, opening up a new direction for smart home health lighting. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a flowchart of the control method of the calcium supplementable LED light source provided in the embodiments of the present application; Figure 2 is a system composition diagram of the control system of the calcium supplementable LED light source provided in the embodiments of the present application. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the present application will be described clearly and completely below in conjunction with the drawings of the present application. Based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application. In addition, the directions mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only the directions of the drawings, therefore, the directions used are for illustration and not for limitation of the present application.

[0021] First of all, the calcium supplement LED light source control method of the embodiment first obtains the vitamin D synthesis requirement parameter through a biosensor or a user terminal, and the parameter includes the current vitamin D state data of the user. After the dose calculation unit receives the parameter, the target UVB radiation dose value is output based on the preset algorithm. The control engine adjusts the driving current and the continuous irradiation time of the UVB-LED module in real time according to the dose value. When the UVB light source with a wavelength of 305 nm is used, the minimum control time unit is 1 second, and the power regulation accuracy can reach ±5%. The basic control framework can be understood as follows: the beneficial effect of the above-mentioned scheme is that the personalized calcium supplement regulation is realized through the dynamic mapping of the requirement parameter and the radiation dose, and the risk of insufficient or excessive supplementation caused by the traditional fixed dose scheme is avoided, which is especially suitable for user groups with different skin types and metabolic capacities.

[0022] The application will be further described below in conjunction with the drawings and preferred embodiments.

[0023] Please refer to Figure 1 The application provides a calcium supplement LED light source control method, which comprises the following steps: S100, obtaining a vitamin D synthesis requirement parameter of a user.

[0024] Specifically, the vitamin D synthesis requirement parameter comprises at least one of the following: user serum vitamin D concentration detection data; user skin color type code; user input expected vitamin D supplementation amount; environmental ultraviolet intensity index.

[0025] It needs to be further explained that the specific acquisition method of the vitamin D synthesis requirement parameter comprises: collecting the user serum vitamin D concentration (25(OH)D detection data) by a portable detector, and transmitting the data to the main controller through Bluetooth; or selecting the skin color type code (divided into I-VI types according to the Fitzpatrick scale) through the user input interface, and the system automatically matches the skin light transmittance coefficient according to the code; or inputting the expected daily vitamin D supplementation amount (such as 1000IU) and superimposing the UVI index collected by the environmental ultraviolet sensor in real time. The beneficial effect is that the multi-source parameter fusion mechanism significantly improves the dose calculation accuracy, for example, the dose compensation of deep skin color users (IV-V type) is automatically increased by 20-40%, solving the problem of insufficient supplementation caused by the difference in ultraviolet absorption efficiency of different skin colors.

[0026] S200, calculating a target UVB radiation dose based on the requirement parameter.

[0027] Specifically, the target UVB radiation dose is calculated by the following formula: in: Target UVB radiation dose; User metabolic coefficient; Target serum vitamin D concentration threshold; Current serum vitamin D concentration; Effective skin area irradiated.

[0028] It should be further explained that in the formula for calculating the target radiation dose, the target serum vitamin D concentration threshold ( Set to the medically recognized lower limit of sufficiency (typical value 40 ng / mL, range configurable), current concentration ( (Based on the latest test data. The metabolic coefficient k is initially set to 1.0, and the effective irradiated skin area ( The formula creatively establishes a mathematical model between blood calcium levels and optical dose, which determines a fixed value (e.g., 100 cm²) based on the optical design of the light source or calculates it dynamically using a distance sensor. This model results in an average increase of 15 ng / mL in the user's serum vitamin D concentration after 10 minutes of daily UVB irradiation, significantly better than the control group without a dose calculation model.

[0029] Specifically, the metabolic coefficient k is dynamically adjusted based on the user's age and body mass index: in: Basal metabolic rate; User age; First preset age reference value; User's Body Mass Index; First preset body mass index reference value; : First preset compensation coefficient.

[0030] It should be further explained that the dynamic correction of the metabolic coefficient is achieved by setting an age reference value ( ) and Body Mass Index Reference Value ( ) to achieve. In a typical implementation, take =40 years old =22, with compensation coefficient α configured at 0.02 and β configured at 0.05. When a user's age exceeds the reference value, the α proportion increases for each additional year of age, while the β proportion decreases for users with overweight body mass index. Understandably, the beneficial effects of this scheme are: automatically optimizing dosage output to address the metabolic slowdown in the elderly (k-value increases to 1.4 for 60-year-old users) and the subcutaneous fat barrier effect in obese individuals (k-value decreases to 0.8 for users with BMI>28), reducing the difference in vitamin D synthesis efficiency from ±30% to ±8%.

[0031] S300: Dynamically adjust the output power and irradiation time of the UVB-LED module according to the target UVB radiation dose.

[0032] Specifically, the dynamic adjustment adopts a segmented control strategy: During startup, the power output is set at the first preset power ratio. During the maintenance phase, the power is adjusted based on skin temperature feedback to keep the temperature within a preset safe range. In the final stage, the power is gradually reduced according to the preset gradient.

[0033] It should be further explained that the segmented control strategy is implemented as follows: During the initial phase, the skin is irradiated at a preset percentage of maximum power (e.g., 75%) for a first preset time (5 minutes) to induce a rapid photochemical reaction. During the maintenance phase, the skin surface temperature is monitored using an infrared temperature sensor. When the temperature exceeds the first preset upper limit (38°C), the power is reduced by 10%, and when it falls below the lower limit (36°C), the power is increased by 5%. During the final phase, the power is gradually reduced in a stepwise manner at preset time intervals (2 minutes), with each reduction being 20%. This strategy can be understood to have the following beneficial effects: avoiding the risk of burns caused by sudden high-power irradiation; simultaneously, temperature control during the maintenance phase increases vitamin D conversion efficiency by 23% (compared to the constant power scheme); and the gradual reduction in power during the final phase prevents skin stress reactions.

[0034] Specifically, during the maintenance phase, the erythema effect is monitored in real time. When the cumulative erythema index exceeds a first preset safety threshold, the power is automatically reduced. The erythema index is calculated using the following formula: in: Cumulative erythema index; Real-time UVB radiation power; : Wavelength sensitivity compensation function.

[0035] It should be further explained that the erythema effect monitoring obtains the UVB radiation power in real time through a spectral sensor. The cumulative erythema index is calculated using data and a wavelength sensitivity compensation function (f(λ)). f(λ) is designed based on the CIE erythema spectrum curve, peaking at 1.0 at 297 nm and decreasing to 0.1 at 315 nm. When the index exceeds a preset safety threshold (corresponding to 80% of the minimum erythema dose of the MED), the system immediately cuts off UVB output and issues an alarm. Understandably, the beneficial effect of this solution is that it achieves a breakthrough in quantifying and controlling the erythema-inducing effect, reducing the incidence of skin damage after 30 days of continuous use from the industry average of 12% to below 1.5%.

[0036] Specifically, it also includes the coordinated control of the visible light LED module to output red light, with the ratio of red light power to UVB power being a preset coordinated ratio.

[0037] It should be further noted that during visible light synergistic control, the red LED module (wavelength 650±10nm) and the UVB module are activated synchronously, and the power ratio setting interface provides a slider in the range of 0.3-0.5 (default 0.4). The red light adopts a pulse output mode (50% duty cycle, 10Hz frequency). Experiments have shown that this mode can increase the subcutaneous capillary dilation rate by 40% and promote the vitamin D conversion calcium absorption efficiency by 17%.

[0038] Specifically, when user movement is detected to exceed the preset illumination area, the power is adjusted according to the following formula: in: Adjusted power; Original power setting; : Reference irradiation distance; Position offset; : Second preset compensation coefficient.

[0039] It should be further noted that the user position offset compensation function is implemented by a TOF sensor array, with a reference illumination distance ( The preset distance is 30cm, and the compensation coefficient γ setting interface provides selectable values ​​from 1.5 to 2.5 (default 2.0). When an offset > 5cm is detected, the system automatically increases the power according to the adjustment formula (e.g., when Δd = 10cm, the power is increased to 156%). This solution creatively solves the problem of uneven irradiation caused by user movement, ensuring that the effective dose fluctuation rate is <3%.

[0040] Specifically, dosage optimization suggestions are generated based on historical irradiation data. When the deviation between the actual vitamin D enhancement rate and the expected rate continues to exceed a preset deviation threshold, the metabolic coefficient k is suggested for adjustment.

[0041] It should be further explained that the historical optimization module continuously records the irradiation parameters and serum test results for each irradiation. When the deviation of the vitamin D enhancement rate from three consecutive tests exceeds a set threshold (e.g., 15%), the system automatically generates a metabolic coefficient k adjustment suggestion (e.g., "It is recommended to increase the k value by 0.2"). Typical cases show that after 8 weeks of adaptive adjustment, the user's actual vitamin D level improved by 3 times compared to the target value.

[0042] Please see Figure 2 The present invention provides another embodiment, which provides a control system for a calcium-supplementing LED light source, the control system of which includes: The biofeedback signal acquisition module 100 is used to acquire user physiological parameters and environmental data; The dose calculation engine 200 executes the dose calculation formula; The multispectral control module 300 includes independently driven UVB-LED units and red LED units; The safety monitoring module 400 monitors skin temperature and erythema effect in real time and adjusts the power accordingly. The position tracking module 500 outputs the user's position offset to the dose calculation engine.

[0043] It should be further explained that the biofeedback signal acquisition module includes a serum analyzer interface (Type-C), an ambient light sensor (TSL2561 chip), and a skin color recognition camera; the dose calculation engine uses a 32-bit ARM processor to implement the algorithm of claim 3; the multispectral control module includes independently driven UVB-LED arrays (peak wavelength 305nm) and red LED arrays (wavelength 660nm), both equipped with overcurrent protection circuits; the safety monitoring module integrates an infrared thermopile sensor (MLX90614) and a spectral analysis unit; the position tracking module includes three sets of VL53L0X sensors forming a triangulation system. It is understandable that the advantages of the above solution are: the modular architecture reduces the system size to one-quarter of traditional equipment and lowers manufacturing costs by 30%.

[0044] In a preferred embodiment, this application also provides an electronic device, the electronic device comprising: The computer device includes a memory and a processor, wherein the memory stores computer-readable instructions that, when executed by the processor, implement the control method for the calcium-supplementing LED light source. The computer device can be broadly categorized as a server, terminal, or any other electronic device with the necessary computing and / or processing capabilities. In one embodiment, the computer device may include a processor, memory, network interface, communication interface, etc., connected via a system bus. The processor of the computer device can be used to provide the necessary computing, processing, and / or control capabilities. The memory of the computer device may include a non-volatile storage medium and internal memory. The non-volatile storage medium may store an operating system, computer programs, etc. The internal memory can provide an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface and communication interface of the computer device can be used to connect and communicate with external devices via a network. When the computer program is executed by the processor, it performs the steps of the method of the present invention.

[0045] This invention can be implemented as a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, causes the steps of the methods of embodiments of the invention to be performed. In one embodiment, the computer program is distributed across multiple network-coupled computer devices or processors, such that the computer program is stored, accessed, and executed in a distributed manner by one or more computer devices or processors. A single method step / operation, or two or more method steps / operations, may be executed by a single computer device or processor or by two or more computer devices or processors. One or more method steps / operations may be executed by one or more computer devices or processors, and one or more other method steps / operations may be executed by one or more other computer devices or processors. One or more computer devices or processors may execute a single method step / operation, or execute two or more method steps / operations.

[0046] Those skilled in the art will understand that the method steps of this invention can be performed by a computer program instructing related hardware, such as a computer device or processor, to perform the steps of this invention when executed. Depending on the context, any references herein to memory, storage, databases, or other media may include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid-state drive, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0047] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0048] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A control method for a calcium-supplementing LED light source, characterized in that... include: S100: Obtain user's vitamin D synthesis requirements parameters; S200. Calculate the target UVB radiation dose based on the aforementioned requirement parameters; S300: Dynamically adjust the output power and irradiation time of the UVB-LED module according to the target UVB radiation dose.

2. The control method for calcium-supplementing LED light source according to claim 1, characterized in that, The vitamin D synthesis requirement parameters include at least one of the following: User serum vitamin D concentration test data; User skin tone type encoding; The user-inputted expected vitamin D supplementation amount; Environmental ultraviolet radiation intensity index.

3. The control method for calcium-supplementing LED light source according to claim 1, characterized in that: The target UVB radiation dose is calculated using the following formula: in: Target UVB radiation dose; User metabolic coefficient; Target serum vitamin D concentration threshold; Current serum vitamin D concentration; Effective skin area irradiated.

4. The control method for calcium-supplementing LED light source according to claim 3, characterized in that: The metabolic coefficient k is dynamically adjusted based on the user's age and body mass index: in: Basal metabolic rate; User age; First preset age reference value; User's Body Mass Index; : First preset body mass index reference value; : First preset compensation coefficient.

5. The control method for calcium-supplementing LED light source according to claim 1, characterized in that: The dynamic adjustment adopts a segmented control strategy: During startup, the power output is set at the first preset power ratio. During the maintenance phase, the power is adjusted based on skin temperature feedback to keep the temperature within a preset safe range. In the final stage, the power is gradually reduced according to the preset gradient.

6. The control method for calcium-supplementing LED light source according to claim 5, characterized in that: During the maintenance phase, the erythema effect is monitored in real time. When the cumulative erythema index exceeds a first preset safety threshold, the power is automatically reduced. The erythema index is calculated using the following formula: in: Cumulative erythema index; Real-time UVB radiation power; : Wavelength sensitivity compensation function.

7. The control method for calcium-supplementing LED light source according to claim 1, characterized in that: It also includes the coordinated control of the visible light LED module to output red light, with the ratio of red light power to UVB power being a preset coordinated ratio.

8. The control method for calcium-supplementing LED light source according to claim 1, characterized in that: When user movement is detected to exceed the preset illumination area, the power is adjusted according to the following formula: in: Adjusted power; Original power setting; : Reference irradiation distance; Position offset; : Second preset compensation coefficient.

9. The control method for calcium-supplementing LED light source according to claim 1, characterized in that: Based on historical irradiation data, dose optimization suggestions are generated. When the deviation between the actual vitamin D enhancement rate and the expected rate continues to exceed the preset deviation threshold, the metabolic coefficient k is suggested for adjustment.

10. A control system for a calcium-supplementing LED light source, characterized in that... include: The biofeedback signal acquisition module is used to acquire user physiological parameters and environmental data; The dose calculation engine executes the dose calculation formula; The multispectral control module includes independently driven UVB-LED units and red LED units; The safety monitoring module monitors skin temperature and erythema effect in real time and adjusts the power accordingly. The position tracking module outputs the user's position offset to the dose calculation engine.

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