CN116390302A - A method and system for dynamically adjusting biological rhythm lights - Google Patents

Abstract

The invention provides a dynamic regulation method and a dynamic regulation system for light of a biological rhythm, and relates to the technical field of regulation of the biological rhythm. Aiming at the problems that the human circadian rhythm system is greatly affected by a lighting system and is easy to cause sleep disorder and depression, the invention researches the dynamic parameter adjustment of the rhythm lamp, extracts the change rule of spectrum, color temperature and brightness by collecting actual illumination data, establishes a basic illumination data curve simulating the dynamic change of sunlight, and realizes the initial illumination change control of the rhythm lamp by adopting the basic illumination data curve; the method comprises the steps of collecting sleep parameters of a user under initial illumination change, feeding back the relation between an illumination mode and sleep quality, and adjusting an illumination change control curve according to feedback to obtain a personalized illumination change control curve for a specific user, wherein the personalized curve is utilized to realize dynamic adjustment of rhythm light, so that the sleep improvement effect of the specific user can be more effectively improved.

Description

A method and system for dynamically adjusting biological rhythm lights

technical field

The invention relates to the technical field of biological rhythm adjustment, in particular to a method and system for dynamically adjusting biological rhythm lights.

Background technique

How to regulate sleep disorders and anxiety, depression, comprehensive treatment is an ideal method, including drug treatment and non-drug treatment.

类和非苯二氮/>

类药物，具有明显的副作用，导致日间疲乏、困倦和认知功能障碍，增加抑郁的躯体症状，长期使用导致药物依赖，并且容易出现戒断症状，导致焦虑。而非药物治疗作为一种安全性较高、能缓解症状的方法，已有相关研究。其中光照治疗被认为是对睡眠紊乱和抑郁均有疗效的一种治疗方法，而且不容易产生严重的副作用。Benzodiazepines are the main drugs used to treat insomnia in China

and non-benzodiazepines/>

These drugs have obvious side effects, leading to daytime fatigue, drowsiness and cognitive dysfunction, increasing the physical symptoms of depression, long-term use leading to drug dependence, and prone to withdrawal symptoms, leading to anxiety. Non-drug treatment is a relatively safe method that can relieve symptoms, and there have been related studies. Among them, light therapy is considered to be a treatment method that is effective for both sleep disorders and depression, and is not prone to serious side effects.

Intrinsically photosensitive retinal ganglion cells (ipRGCs) use the photopigment melanin to transmit light stimuli through the retinohypothalamic tract to different areas of the brain, primarily to our internal "master clock" - the suprachiasmatic nucleus, which in turn Control rhythm and regulate sleep.

Melanin is very sensitive to short wavelengths of light, namely blue light, which makes these wavelengths of light an efficient timing factor. Due to the influence of artificial light, modern people receive less natural light time, especially insufficient light exposure during the day, and increased artificial light exposure at night. Conventional lighting fixtures on the market do not take into account the human body's work and rest rhythm, resulting in the human circadian rhythm system being greatly affected by the lighting system. Large, easily lead to sleep disturbance and depression.

For this reason, rhythm lamps for the treatment of insomnia have also appeared on the market, but the main change of rhythm lamps widely sold in the market is the color temperature, but the change of pure color temperature does not correspond to the change of spectrum and brightness, which will lead to the final adjustment of sleep. The effect cannot simulate the effect of the change of sunlight itself, and the improvement effect on sleep is not good; and the existing rhythm lights either need to be adjusted manually, but because the user lacks the necessary knowledge, the effect after adjustment is not good, or It is difficult to adapt to the needs of different groups of people by using the cured light parameter change curve for rhythm adjustment.

Therefore, it is necessary to conduct research on the dynamic parameter adjustment of the rhythm lamp to improve the therapeutic effect of the rhythm lamp.

Contents of the invention

In order to solve the problems existing in the prior art, the present invention proposes a method and system for dynamically adjusting biological rhythm lights. By collecting the actual lighting data, extracting the changing law of the spectrum, color temperature and brightness, establishing the basic lighting data curve that simulates the dynamic change of sunlight, and using the basic lighting data curve to realize the initial lighting change control of the rhythmic light; Sleep parameters, feedback the relationship between lighting mode and sleep quality, adjust the lighting data curve according to the feedback, get the personalized lighting data curve for specific users, and use the personalized lighting data curve to realize the dynamic adjustment of rhythm lighting.

Technical scheme of the present invention is:

A method for dynamically adjusting biological rhythm lights, comprising the following steps:

Step 1: Collect the actual sunlight illumination data, extract the change law of spectrum, color temperature and brightness, and establish the basic illumination data curve to simulate the dynamic changes of sunlight;

Step 2: According to the basic lighting data curve obtained in step 1, and cooperate with the user's initial input parameters, the initial lighting change control curve of the rhythm lamp is obtained, and the sleep parameters of the user under the initial lighting change are collected; the user's initial input parameters Including user-set bedtime;

Step 3: According to the user's sleep parameters obtained in step 2, correspondingly adjust the lighting change control of the rhythmic light, and obtain a personalized lighting change control curve for a specific user;

Step 4: Use the personalized light change control curve obtained in step 3 to realize the dynamic adjustment of rhythmic lighting.

Further, in step 1, the actual sunlight illumination data is collected, the change law of the spectrum, color temperature and brightness is extracted, and the specific process of establishing the basic illumination data curve for simulating the dynamic change of sunlight is as follows:

Step 1.1: Avoid areas with obvious outdoor light interference in the selected cities. In the seasons when spring and summer intersect, use a spectrometer to collect data on sunny days, with the indoor lights turned off, at a distance of 1m horizontally from the window and a vertical height of 1.2m. The natural light spectrum, color temperature and brightness are continuously collected for several days, 24 hours a day, and automatically collected every half hour;

Step 1.2: Remove outliers and fill in missing values on the collected data to obtain the basic illumination data curve of the selected city.

Further, in step 1.1, the date for collecting the basic light data curve is a sunny day between Xiaoman and Eargrass.

Further, in step 2, according to the basic light data curve, the initial light change control curve of the rhythmic light is divided into a rising period, a daytime relative plateau period, a falling period and a nighttime relative plateau period;

The time point when the color temperature starts to increase, the brightness starts to increase, and the spectrum changes in the basic lighting data curve is used as the inflection point of the relative plateau period and the rising period at night; in the subsequent rising period, the color temperature and brightness correspond to the corresponding time in the basic lighting data curve The rising gradient fitting value of the color temperature and brightness of the segment increases linearly, and the spectrum changes accordingly, until it reaches the maximum value of the color temperature and brightness parameters and enters the relative plateau period of the day; in the relative plateau period of the day, the color temperature and brightness remain unchanged until it drops In the falling period, the color temperature and brightness linearly decrease, and the spectrum changes accordingly, until the bedtime set by the user enters the relative plateau period at night, when the color temperature and brightness of the rhythm lamp drop to the lowest limit value, and then The relative plateau at night remains unchanged.

Further, the duration of the daytime relative plateau period is set to 6 hours.

Further, the minimum limit value is the lowest achievable value for the color temperature and the brightness is 10lux to ensure nighttime activities.

Further, in step 2, the sleep parameters collected include: the user's time to go to bed, time to wake up, time to fall asleep, time to wake up after falling asleep, and time to wake up; and through multiple collections, the user's average time to wake up is obtained.

Further, in step 3, according to the user's sleep parameters obtained in step 2, the lighting change control of the rhythmic light is adjusted correspondingly, and the specific process of obtaining the personalized lighting change control curve for a specific user is as follows:

The user's average wake-up time is set as the wake-up time, and the wake-up time is used as the inflection point between the plateau period and the rising period at night, and the light change control curve is adjusted from the wake-up time, the color temperature increases linearly, the brightness increases linearly, and the spectrum changes accordingly, to daytime The relative plateau period reaches the maximum value of the color temperature and brightness parameters of the lamp. After a certain period of time, it enters the decline period. The color temperature decreases linearly, the brightness decreases linearly, and the spectrum changes accordingly until the time when the user goes to bed. At this time, the color temperature and brightness of the rhythm lamp down to the lowest limit.

Further, the user's bedtime for calculating the user's personalized lighting change control curve is corrected through the following process, that is, the time point of determining the minimum value of the color temperature and brightness of the lamp.

According to the formula

Sleep efficiency = (waking time - falling asleep time - awake time after falling asleep) / (waking time - going to bed time) × 100% to calculate sleep efficiency, and correct the user's bedtime for calculating the user's personalized light change control curve according to the sleep efficiency :

If the user's sleep efficiency is above 85%, the user's currently set bedtime is set as the user's bedtime used when calculating the personalized light change control curve; if the user's sleep efficiency is less than 85%, the user's currently set bedtime is used It is the time to fall asleep, but it is required to ensure that the time to go to bed is at least 6 hours away from the user's average wake-up time. If it is less than 6 hours, the user's go-to-bed time is determined as 6 hours before the user's average wake-up time.

The system capable of dynamically adjusting biological rhythm lights includes: rhythm lights, a sleep parameter acquisition system, and a control system;

The rhythm lamp can adjust the spectrum, color temperature and brightness according to the control signal;

The sleep parameter collection system can collect the user's sleep parameters;

The control system has a built-in algorithm module for adjusting the light change control curve according to the user's sleep parameters;

The control system has a storage module inside, which stores the basic lighting data curves of several different urban areas, as well as the user's personalized lighting data curves;

The control system can generate a control signal according to the light change control curve, and adjust the spectrum, color temperature and brightness of the rhythm lamp output.

Further, it also includes a human-computer interaction system, which performs information interaction with the control system; through the human-computer interaction system, the user can select the location and control the rhythm lamp to turn on or off the rhythm function.

Further, the human-computer interaction system is realized through mobile phone APP.

Beneficial effect

The method and system for dynamically adjusting biological rhythm lights proposed by the present invention can fully simulate the changes of sunlight itself by collecting actual light data and extracting the change rules of spectrum, color temperature and brightness, and improve the sleep improvement effect.

Moreover, the present invention collects user sleep data, feeds back the relationship between the lighting mode and sleep quality, adjusts the basic lighting data curve according to the feedback, and obtains a personalized lighting data curve for a specific user, thereby being able to more effectively improve the quality of life for a specific user. sleep-improving effect.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1: method flowchart of the present invention;

Figure 2: Block diagram of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

In this embodiment, a system capable of dynamically adjusting biological rhythm lights is proposed, including: rhythm lights, a sleep parameter collection system, and a control system.

The rhythm lamp can adjust the spectrum, color temperature and brightness according to the control signal. Specifically, the rhythm lamp includes a power supply interface, a color temperature driver, a spectrum driver, a brightness driver and a light source. The power supply interface is connected to external AC power, and is used to provide power for the color temperature driver, the spectrum driver, the brightness driver and the light source. The color temperature driver, spectrum driver and brightness driver output corresponding color temperature, spectrum and brightness driving signals to the light source according to the control signals. As the final output of the lamp, the light source emits light corresponding to the color temperature, spectrum and brightness.

The sleep parameter collection system can collect the user's sleep parameters. Specifically, the sleep parameter collection system inputs subjective or other sleep monitoring results through smart devices, such as smart watches, etc., or actively records sleep diaries. After waking time, wake up time. Of course, multiple devices and subjective records can also be used to collect sleep parameters. For example, it is possible to actively record bed time and wake-up time, or use rhythmic light off and on time to collect the user’s bed time and wake-up time. Collect the user's time to fall asleep, time to wake up after falling asleep, and time to wake up.

The control system has a built-in algorithm module that adjusts the light data curve according to the user's sleep parameters, and also has a storage module that stores the basic light data curves of several different urban areas, as well as the user's personalized light change control curve; The control curve generates a control signal to adjust the output spectrum, color temperature and brightness of the rhythm light.

The basic lighting data curves of different urban areas are obtained through the following process:

Step 1.1: In the selected urban area, the area should avoid the influence of external light. In the seasons when spring and summer intersect, specifically select sunny days between Xiaoman and Eargrass, and use a spectrometer to collect data on sunny days. The natural light spectrum, color temperature and brightness at a vertical height of 1.2m are collected continuously for several days, 24 hours a day, and automatically collected every half hour;

Step 1.2: Remove outliers and fill in missing values on the collected data to obtain the basic illumination data curve of the selected city.

In this way, the basic lighting data curves of different urban areas are stored in the storage module. When users use it, they can select the city closest to the time zone as the basic starting value according to the area they are in.

After obtaining the basic light data curve of the selected urban area, according to the collected user sleep parameters, the rhythmic light change control curve is adjusted accordingly, and the personalized light change control curve for specific users is obtained. As mentioned above, the collected sleep parameters include: the user's bedtime, wake-up time, sleep time, wake-up time after falling asleep, and wake-up time; here we obtain the user's average wake-up time through multiple collections. Then, the user's average wake-up time is set as the wake-up time, and the wake-up time is used as the inflection point of the relative plateau period and rising period at night, and the light change control curve is adjusted from the wake-up time, the color temperature increases linearly, the brightness increases linearly, and the spectrum changes correspondingly. The relative plateau period during the day reaches the maximum value of the color temperature and brightness parameters of the lamp, maintains for 6 hours, enters the decline period, the color temperature decreases linearly, the brightness decreases linearly, and the spectrum changes accordingly, until the time when the user goes to bed at night, as the decline period. The inflection point of the plateau period, when the color temperature and brightness of the rhythm lamp drop to the lowest limit value.

In addition, in order to better improve the user's sleep quality, we also calculate according to the sleep parameters collected by the formula sleep efficiency = (waking up time - falling asleep time - waking up after falling asleep) / (waking up time - going to bed) × 100% Sleep efficiency, and correct the user's bed time according to sleep efficiency:

If the user's sleep efficiency is above 85%, the user's currently set bedtime is set as the user's bedtime used when calculating the personalized light change control curve. If the user's sleep efficiency is less than 85%, the time to go to bed currently set by the user is used as the time to fall asleep, but it is required to ensure that the time to go to bed is at least 6 hours away from the user's average wake-up time. time.

In this way, the user's personalized lighting change control curve is used for lighting, which can better improve the user's sleep quality.

In addition, we have also designed a human-computer interaction system implemented through a mobile phone APP, through which information can be exchanged with the control system; for example, through the human-computer interaction system, users can choose their location and control the rhythm lamp to turn on or off the rhythm function .

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limitations to the present invention. Variations, modifications, substitutions, and modifications to the above-described embodiments are possible within the scope of the present invention.

Claims (10)

1. A method for dynamically adjusting biological rhythm lighting, characterized in that: comprising the following steps: Step 1: Collect the actual sunlight illumination data, extract the change law of spectrum, color temperature and brightness, and establish the basic illumination data curve to simulate the dynamic changes of sunlight; Step 2: According to the basic lighting data curve obtained in step 1, and cooperate with the user's initial input parameters, the initial lighting change control curve of the rhythm lamp is obtained, and the sleep parameters of the user under the initial lighting change are collected; the user's initial input parameters Including user-set bedtime; Step 3: According to the user's sleep parameters obtained in step 2, correspondingly adjust the lighting change control of the rhythmic light, and obtain a personalized lighting change control curve for a specific user; Step 4: Use the personalized light change control curve obtained in step 3 to realize the dynamic adjustment of rhythmic lighting. 2. A method for dynamically adjusting biological rhythm lights according to claim 1, characterized in that: in step 1, the actual sunlight illumination data is collected, the variation law of the spectrum, color temperature and brightness is extracted, and the dynamic variation of sunlight is established. The specific process of the basic lighting data curve is: Step 1.1: Avoid areas with obvious outdoor light interference in the selected cities. In the seasons when spring and summer intersect, use a spectrometer to collect data on sunny days, with the indoor lights turned off, at a distance of 1m horizontally from the window and a vertical height of 1.2m. The natural light spectrum, color temperature and brightness are continuously collected for several days, 24 hours a day, and automatically collected every half hour; Step 1.2: Remove outliers and fill in missing values on the collected data to obtain the basic illumination data curve of the selected city. 3. A method for dynamically adjusting biological rhythm lights according to claim 2, characterized in that: in step 1.1, the date for collecting the basic light data curve is a sunny day between Xiaoman and Eargrass. 4. A method for dynamically adjusting biological rhythm lights according to claim 1, characterized in that: in step 2, according to the basic light data curve and the initial input parameters of the user, the initial light change control curve of the rhythm light is divided into It is the rising period, the daytime relative platform period, the decline period and the nighttime relative platform period; The time point when the color temperature starts to increase, the brightness starts to increase, and the spectrum changes in the basic lighting data curve is used as the inflection point of the relative plateau period and the rising period at night; in the subsequent rising period, the color temperature and brightness correspond to the corresponding time in the basic lighting data curve The rising gradient fitting value of the color temperature and brightness of the segment increases linearly, and the spectrum changes accordingly, until it reaches the maximum value of the color temperature and brightness parameters and enters the relative plateau period of the day; in the relative plateau period of the day, the color temperature and brightness remain unchanged until it drops In the falling period, the color temperature and brightness linearly decrease, and the spectrum changes accordingly, until the bedtime set by the user enters the relative plateau period at night, when the color temperature and brightness of the rhythm lamp drop to the lowest limit value, and then The relative plateau at night remains unchanged. 5 . A method for dynamically adjusting biological rhythm lights according to claim 4 , characterized in that: the duration of the relative plateau period during the day is set to 6 hours. 6. A method for dynamically adjusting biological rhythm lights according to claim 1, characterized in that: in step 2, the sleep parameters collected include: the user's time to go to bed, time to wake up, time to fall asleep, time to wake up after falling asleep, time to wake up ; and obtain the user's average wake-up time through multiple collections. 7. A method for dynamically adjusting biological rhythm lighting according to claim 6, characterized in that: in step 3, according to the user's sleep parameters obtained in step 2, the lighting change control of the rhythm lamp is correspondingly adjusted to obtain personalized lighting for a specific user The specific process of the illumination change control curve is as follows: The user's average wake-up time is set as the wake-up time, and the wake-up time is used as the inflection point between the plateau period and the rising period at night, and the light change control curve is adjusted from the wake-up time, the color temperature increases linearly, the brightness increases linearly, and the spectrum changes accordingly, to daytime The relative plateau period reaches the maximum value of the color temperature and brightness parameters of the lamp. After a certain period of time, it enters the decline period. The color temperature decreases linearly, the brightness decreases linearly, and the spectrum changes accordingly until the time when the user goes to bed. At this time, the color temperature and brightness of the rhythm lamp down to the lowest limit. 8. A method for dynamically adjusting biological rhythm lighting according to claim 7, wherein the user's bedtime for calculating the user's personalized lighting change control curve is corrected by the following process: According to the formula Sleep efficiency = (waking time - falling asleep time - awake time after falling asleep) / (waking time - going to bed time) × 100% to calculate sleep efficiency, and correct the user's bedtime for calculating the user's personalized light change control curve according to the sleep efficiency : If the user's sleep efficiency is above 85%, the user's currently set bedtime is set as the user's bedtime used when calculating the personalized light change control curve; if the user's sleep efficiency is less than 85%, the user's currently set bedtime is used It is the time to fall asleep, but it is required to ensure that the time to go to bed is at least 6 hours away from the user's average wake-up time. If it is less than 6 hours, the user's go-to-bed time is determined as 6 hours before the user's average wake-up time. 9. A system capable of dynamically adjusting biological rhythm lights, characterized in that: comprising: rhythm lights, a sleep parameter collection system, and a control system; The rhythm lamp can adjust the spectrum, color temperature and brightness according to the control signal; The sleep parameter collection system can collect the user's sleep parameters; The control system has a built-in algorithm module for adjusting the light change curve according to the user's sleep parameters; The control system has a storage module inside, which stores the basic lighting data curves of several different urban areas, as well as the user's personalized lighting change control curve; The control system can generate a control signal according to the light change control curve, and adjust the spectrum, color temperature and brightness of the rhythm lamp output. 10. A system capable of dynamically adjusting biological rhythm lights according to claim 9, characterized in that: it also includes a human-computer interaction system, which performs information interaction with the control system; through the human-computer interaction system, the user Can choose the location, can control the rhythm lamp to turn on or off the rhythm function.

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