CN112637990A - Indoor dynamic illumination adjusting method and system suitable for human body biological rhythm - Google Patents
Indoor dynamic illumination adjusting method and system suitable for human body biological rhythm Download PDFInfo
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
- H05B45/22—Controlling the colour of the light using optical feedback
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Abstract
The invention discloses an indoor dynamic illumination adjusting method and system suitable for human body biological rhythm, belonging to the technical field of illumination, comprising the following steps: the method comprises the steps of determining indoor dynamic lighting modes by collecting and analyzing a natural light change rule for a long time and combining conditions such as a human body biorhythm curve and the like, wherein each dynamic lighting mode corresponds to a specific adjusting mode and range of a color temperature parameter and a specific adjusting range of a light illumination parameter; acquiring the current time and judging the weather condition; acquiring a corresponding indoor dynamic lighting mode; collecting outdoor daylight color and indoor illuminance at the current time in real time; and controlling and adjusting the color temperature and the illuminance of the indoor LED within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature and the indoor illuminance at the current time. The method and the system change the indoor illumination from static state to dynamic state, can dynamically adjust according to the change of time, outdoor weather conditions and natural light, accord with the biological rhythm of the human body, are not only beneficial to adjusting and improving the emotion of people, but also can improve the working efficiency.
Description
Technical Field
The invention belongs to the technical field of illumination, and particularly relates to an indoor dynamic illumination adjusting method and system suitable for human body biological rhythm.
Background
Light is one of the main driving forces of the human circadian rhythm system. Light enters the eye and hits a photoreceptor on the retina: rod cells, cone cells, and intrinsically photosensitive retinal ganglion cells (iprgcs). Among them, rod cells and vertebral cells are mainly involved in human vision, while intrinsically photosensitive retinal ganglion cells (iprgcs) mainly affect the circadian rhythms of the human body in a non-visual manner, absorb light and transmit it to different parts of the brain in the form of electrochemical signals to trigger reactions downstream of the body, thereby affecting the hormone secretion level and sleep-wake cycle of the human body.
Since ancient times, the change of the brightness of natural light is the external basis for physiological regulation of human bodies. The human circadian rhythm period is about 24.2 hours on average, although slightly different from the natural day and night period, under the condition of receiving natural illumination stimulation, the period rhythm can be gradually kept consistent with the nature along with the regulation of the human hormone secretion level. Therefore, the circadian rhythm of the human body can be regarded as a result of the internal and external signals being coordinated in time, and when the two signals are misaligned, the circadian rhythm of the human body undergoes an interruption or desynchronization misalignment, which is expressed by the inconsistency between the biological time (i.e., the internal signal) and the astronomical time (i.e., the external signal) of the human body, thereby causing the circadian rhythm of the human body to be disordered. For example, when the person temporarily receives night shift or flies in more than 3 times of time zone, the normal physiological rhythm of the human body is disordered due to asynchronous external signals.
All light, not just natural light, affects the circadian rhythm of the human body. In the modern society, most of the awakening time of people is spent indoors, so that improper indoor lighting design can also cause disorder of the physiological rhythm of the human body. The human body is continuously sensitive to light, and light in the early morning moves the circadian rhythm of the human body forward (phase advance), while light at night moves the rhythm of the human body backward (phase delay). Therefore, the demands of the human body on the illumination are different at various time intervals in a day, and in order to ensure the normal physiological rhythm of the human body, the indoor illumination mode is also changed from the current static illumination mode to the dynamic illumination mode.
Disclosure of Invention
Aiming at the problem that the prior art has the problem that the indoor illumination is not suitable for the biorhythm of the human body in a static mode, the invention provides the method capable of dynamically adjusting the indoor illumination according to the change of time, outdoor weather conditions and natural light.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an indoor dynamic illumination adjusting method suitable for human body biological rhythm, comprising:
acquiring natural light data for a long time and analyzing to obtain a natural light variation rule;
determining indoor dynamic lighting modes simulating the natural light change rule under different weather conditions and different time periods according to the natural light change rule obtained by analysis and by combining a human body biorhythm curve, indoor illuminance satisfaction and indoor light environment requirements;
acquiring current time;
judging the weather condition of the current time;
acquiring an indoor dynamic lighting mode corresponding to the current time and weather conditions;
collecting outdoor daylight color temperature and indoor working surface horizontal illuminance or human eye vertical illuminance at the current time in real time;
controlling and adjusting the color temperature of the indoor LED within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time;
and controlling and adjusting the illuminance of the indoor LED within the corresponding indoor dynamic illumination mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time.
Further, the acquiring the natural light data for a long time specifically includes:
collecting color temperature data and illuminance data of natural light for a long time, and performing statistical analysis to obtain the change rules of the color temperature and the illuminance of the natural light in different weather conditions and different time periods respectively;
the indoor dynamic illumination mode corresponds to the adjustment mode and range of the specific color temperature parameter and illuminance parameter.
Further, the human body biorhythm curve is a periodic curve of melatonin, cortisol, alertness and body temperature of the human body at different time periods of each day.
Further defined, the indoor light environment requirements are specifically:
during the working period, the physiological equivalent illumination value (EML) is not lower than 250 lx; rest period, physiologically equivalent luminance value (EML) not higher than 50 lx.
Further, it is limited that the determining the weather condition at the current time specifically includes:
the method comprises the steps of dividing a sky hemisphere of an environment into a plurality of measuring point units, collecting sky spectrum brightness of each measuring point unit, and comprehensively judging whether the current weather condition is a sunny day or a cloudy day by combining a sky hemisphere photo and rainfall information according to the CIE (Commission on the International illumination Commission) sky brightness distribution standard.
Further, it is defined that the indoor dynamic lighting modes of different weather conditions and different time periods include adjusting modes and ranges corresponding to specific color temperature parameters and illuminance parameters, specifically:
morning wake-up mode, time period 8 a.m.: 00-9: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is 750lx of horizontal illuminance of a working surface or 150lx of vertical illuminance of human eyes;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
fast-falling transition mode, with the time period of 12 noon: 00-12: 30, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is reduced from 2000lx to 300lx, or the vertical illuminance of human eyes is reduced from 400lx to 60 lx;
noon rest mode, with the time period at noon 12:30-13:30, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is the horizontal illuminance of a working surface of 300lx or the vertical illuminance of human eyes of 60 lx;
fast-up transition mode, with a period of 13 pm: 30-14: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 300lx to 2000lx, or the vertical illuminance of human eyes is increased from 60lx to 400 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is reduced from 2000lx to 500lx, or the vertical illuminance of human eyes is reduced from 400lx to 100 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is decreased from 2000lx to 500lx, or the vertical illuminance of human eyes is decreased from 400lx to 100 lx.
Where K is the color temperature unit Kelvin and lx is the illuminance unit lux.
Further, in the process of controlling and adjusting the color temperature of the indoor LEDs in the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time, the method further includes:
collecting the current outdoor daylight color temperature in real time so as to control and adjust the color temperature of the indoor LED until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic illumination mode;
the controlling and adjusting the illuminance of the indoor LED within the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time further comprises:
and acquiring the horizontal illuminance or the vertical illuminance of human eyes of the working surface in the current room in real time so as to control and adjust the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED until the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED meets the specific illuminance parameter corresponding to the indoor dynamic illumination mode.
Another object of the present application is to provide an indoor dynamic illumination adjusting system adapted to human body biorhythm, comprising:
the natural light data statistics module acquires natural light data for a long time and analyzes the natural light data to obtain a natural light variation rule;
the indoor dynamic illumination mode module is used for determining indoor dynamic illumination modes simulating the natural light change rule under different weather conditions and different time periods according to the natural light change rule obtained by analysis and by combining a human body biorhythm curve, indoor illumination satisfaction and indoor light environment requirements;
a time module for obtaining a current time;
the weather module is used for acquiring the weather condition of the current time and judging whether the weather condition is sunny or cloudy;
the acquisition module is used for determining a corresponding indoor dynamic illumination mode according to the current time and the weather condition of the current time;
the daylight color temperature acquisition module is used for acquiring the outdoor daylight color temperature at the current time;
the indoor illuminance acquisition module is used for acquiring the horizontal illuminance of an indoor working surface or the vertical illuminance of human eyes at the current time;
and the control module controls and adjusts the color temperature of the indoor LEDs within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time, and controls and adjusts the illuminance of the indoor LEDs within the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time.
Further defined, the natural light data acquisition module includes:
the color temperature data statistical module is used for collecting color temperature data of natural light for a long time, and performing statistical analysis to obtain the change rules of the daylight color temperature in different weather conditions and different time periods;
and the illuminance data statistics module is used for collecting illuminance data of the natural light for a long time, and performing statistical analysis to obtain the change rules of the natural illuminance at different weather conditions and different time periods.
Further defined, the control module further comprises:
the color temperature feedback module is used for collecting the current outdoor sunlight color temperature in real time so as to control and adjust the color temperature of the indoor LED until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic illumination mode;
and the illuminance feedback module is used for acquiring the horizontal illuminance of the working surface in the current room or the vertical illuminance of human eyes in real time so as to control and adjust the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED until the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED meets the specific illuminance parameter corresponding to the indoor dynamic lighting mode.
According to the specific embodiment provided by the invention, the indoor color temperature and the indoor illumination can change along with the change of time, weather conditions and natural light, so that the indoor illumination simulates the change rule of the natural light, conforms to the biological rhythm of a human body, effectively adjusts and improves the emotion of a human body, and can also improve the working efficiency. The method specifically comprises the following steps: according to the natural light change rule obtained by analysis, an indoor dynamic illumination mode for simulating the natural light change rule under different weather conditions and different time periods is determined by combining a human body biorhythm curve, indoor illumination satisfaction and indoor light environment requirements; the color temperature and the illuminance of the indoor LED are controlled and adjusted in the corresponding indoor dynamic illumination mode range according to the time, the outdoor weather condition, the outdoor daylight color temperature and the indoor illuminance, so that the indoor dynamic light environment suitable for the biorhythm of the human body is realized, the emotion of the user is adjusted and improved, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of an embodiment of the method for indoor dynamic illumination adjustment for human biorhythms of the present invention;
FIG. 2 is a plot of natural illuminance throughout the day, with the left side being a plot of natural illuminance throughout a sunny day and the right side being a plot of natural illuminance throughout a cloudy day;
FIG. 3 is a graph of color temperature for sunny and cloudy day daylight;
fig. 4 is a schematic diagram of four important human circadian rhythms of melatonin, cortisol, alertness, and body temperature;
FIG. 5 is an indoor dynamic illumination mode with indoor color temperature and working surface horizontal illuminance for clear sky types;
FIG. 6 is an indoor dynamic lighting pattern of indoor color temperature and vertical illuminance of human eyes when the sky type is sunny;
FIG. 7 is an indoor dynamic illumination mode with an indoor color temperature and a working surface level illuminance when the sky type is cloudy;
FIG. 8 is a diagram of an indoor dynamic lighting pattern of indoor color temperature and human eye vertical illuminance when the sky type is cloudy;
fig. 9 is a block diagram of an embodiment of the indoor dynamic illumination adjusting system suitable for human body biorhythm according to the invention.
Corresponding labels in the drawings are as follows: the system comprises a natural light data statistics module, a color temperature data statistics module, a 12-illuminance data statistics module, a 2-indoor dynamic illumination mode module, a 3-time module, a 4-weather module, a 5-acquisition module, a 6-sunlight color temperature acquisition module, a 7-indoor illuminance acquisition module, an 8-control module, a 81-color temperature feedback module and a 82-illuminance feedback module.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for adjusting indoor dynamic illumination suitable for human biorhythm includes the following steps:
collecting outdoor natural light data of an area where indoor dynamic lighting adjustment is needed for a long time, wherein the outdoor natural light data comprises color temperature data and illuminance data of natural light, then performing statistical analysis, selecting all sunny days and all cloudy days with representative weather conditions for analysis because the natural light changes all the time, and respectively obtaining color temperature change rules and illuminance change rules of different weather conditions and different time periods.
The natural light time changes, and according to long-term observation data of a light climate observation station in the region of the activity area, a sunny day and a cloudy day with representative weather conditions are selected for analysis (a climate observation station of Chongqing university is selected here).
Fig. 2 shows a natural illuminance curve for an all-day environment, where the left side is the natural illuminance curve for an all-sunny environment and the right side is the natural illuminance curve for an all-cloudy environment.
It can be seen from the figure that although the natural illuminance fluctuates due to the influence of the solar altitude, cloud shape, cloud amount and the like in one day, the overall change is relatively regular and basically conforms to the running track of the sun, the illuminance in sunny days and cloudy days changes from low to high in the morning time of one day, the illuminance in the afternoon time of the day changes from high to low, and the maximum value of the illuminance appears around the noon.
FIG. 3 shows a color temperature curve of sunlight on a sunny day and a cloudy day, and it can be seen from the curve that the color temperature of the sunlight on the sunny day is 5000-8000K, and the sunlight is always in a fluctuating state in one day and is unstable; the sunlight color temperature is stable in cloudy days and approximately ranges from 6000K to 7000K, the change range of the sunlight color temperature is large in morning and evening, the sunlight color temperature is rapidly reduced in morning, the sunlight color temperature is rapidly increased in evening, and the change range of the sunlight color temperature is small in most of 1 day and is basically and stably kept at the level of 6000K.
And 200, determining indoor dynamic illumination modes simulating the natural light change rule under different weather conditions and different time periods according to the natural light color temperature and illumination change rule and by combining a human body biological rhythm curve, indoor illumination satisfaction and indoor light environment requirements.
The human body biorhythm curve is a periodic curve of melatonin (melatonin), cortisol (cortisol), body temperature (body temp.) and alertness (alertness) of a human body at different time intervals per day, a schematic diagram of the four important human body biorhythms is shown in fig. 4, the biorhythms of the melatonin, the cortisol, the alertness and the body temperature at the same time interval per day are illustrated, and two complete periodic curves (48h) containing wave crests and wave troughs are shown in the diagram.
From fig. 4, melatonin, cortisol, alertness and body temperature curves can be analyzed as follows:
(1) melatonin was in 3 am: around 00 is at the highest value in the day, followed by a 3: 00-9: the 00 period falls rapidly to the lowest value, steadily at the lowest value during the day (9: 00-20: 00) period, and at night 20: and after 00, rapidly rising to the highest point, wherein the rising time is 6h, the falling time is 7h, the stable time is kept for 11h, and the fluctuation time and the stable time are basically kept equal.
(2) Cortisol in the morning 8: around 00 reaches a maximum value in the day (5 h later than melatonin) and then slowly decreases, at 1: around 00, reaches the lowest value in the day, then in the range of 1: 00-8: and the time interval 00 rapidly rises to the highest value, the rising time is 7h, the falling time is 17h, and no stable time exists.
(3) Body temperature was 0 in the morning: around 00 is at the highest value in the day, followed by a value of 0: 00-7: the 00 period rapidly drops to a minimum and then at 7: 00-24: the time period 00 slowly rises to the highest value, the rising time is 17h, the falling time is 7h, no stable time exists, the phase is just opposite to that of the cortisol (but the phase of the lowest body temperature value is 1h ahead of the phase of the highest body temperature value), and the body temperature is 3h ahead of the phase of the melatonin (the phase of the lowest body temperature value is 3h ahead of the phase of the lowest body temperature value, and the phase of the highest body temperature value is 3h ahead of the phase of the highest body temperature value).
(4) Alertness at noon 13: 00 is at the highest value of the day, then slowly decreases, in the early morning 3: about 00 is at the lowest value in one day, and then slowly rises to the highest value again, the rising time is 10h, the falling time is 14h, and no stable time exists.
Satisfaction degree of indoor illuminance:
analysis shows that as the illuminance increases, the percentage of people who feel "satisfied" also increases, and the maximum percentage corresponds to a working surface level illuminance value of about 20001 x. After the light level exceeds a certain threshold, the "satisfied" person for the illumination decreases instead as the light level increases.
The indoor light environment requirements are as follows:
the majority of the time a person spends indoors, and indoor light environments become especially important for the human body to regulate his own biological rhythms. On one hand, the indoor light environment should make the most use of natural light; on the other hand, the indoor light environment itself also needs to comply with the melatonin suppression rule of the human body. Therefore, the human body needs to meet the light environment in one day: in the working period, the human body needs to keep higher alertness, the working efficiency is improved, and the melatonin is ensured to be always in a lower level, namely, the light environment is required to have higher inhibition effect on the melatonin secretion; during the rest period, the alertness of the human body is reduced, the melatonin level is gradually increased, and the light environment is required to promote the secretion of the melatonin, namely the light environment keeps low melatonin suppression.
In this embodiment, the physiologically equivalent illuminance value (EML) in the working period is required to be not less than 250 lx; the physiological equivalent luminance value (EML) of the rest period is not higher than 50 lx.
Through the change rule of the natural light color temperature and the illumination intensity, the indoor dynamic illumination modes of different weather conditions and different time periods are provided by combining the biorhythm curve of the human body, the satisfaction degree of the indoor illumination intensity and the requirement of the indoor light environment: morning wake-up mode, natural light simulation mode 1, fast decline transition mode, noon rest mode, fast rising transition mode, natural light simulation mode 2, the regulation mode and the scope of specific colour temperature parameter and illuminance parameter are corresponded to every indoor dynamic lighting mode, and concrete control mode is as follows:
morning wake-up mode, time period 8 a.m.: 00-9: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is 750lx of horizontal illuminance of a working surface or 150lx of vertical illuminance of human eyes;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
fast-falling transition mode, with the time period of 12 noon: 00-12: 30, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is reduced from 2000lx to 300lx, or the vertical illuminance of human eyes is reduced from 400lx to 60 lx;
a noon rest mode, wherein the time interval is 12:30-13:30 at noon, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is the horizontal illuminance 300lx of the working surface or the vertical illuminance 60lx of human eyes;
fast-up transition mode, with a period of 13 pm: 30-14: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 300lx to 2000lx, or the vertical illuminance of human eyes is increased from 60lx to 400 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is reduced from 2000lx to 500lx, or the vertical illuminance of human eyes is reduced from 400lx to 100 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illumination parameter is that the horizontal illumination of the working surface is decreased from 2000lx to 500lx, or the vertical illumination of human eyes is decreased from 400lx to 100 lx.
Where K is the color temperature unit Kelvin and lx is the illuminance unit lux.
The dynamic lighting pattern on a sunny day is shown in fig. 5 and 6, and the dynamic lighting pattern on a cloudy day is shown in fig. 7 and 8.
The following describes how to adjust the color temperature and illuminance of the indoor LEDs according to the above-described indoor dynamic lighting mode control.
And step 300, acquiring the current time and judging the weather condition of the current time.
The weather condition judgment method comprises the following steps: the method comprises the steps of dividing a sky hemisphere of an environment into a plurality of measuring point units, collecting sky spectrum brightness of each measuring point unit, and comprehensively judging whether the current weather condition is a sunny day or a cloudy day by combining a sky hemisphere photo and rainfall information according to the CIE (Commission on the International illumination Commission) sky brightness distribution standard.
It should be noted that a sunny day refers to a weather condition with direct sunlight, a cloudy day refers to a weather condition without direct sunlight, and a rainy day belongs to a weather condition classified as a cloudy day.
And step 400, selecting a corresponding lighting mode from the indoor dynamic lighting modes according to the current time acquired in step 300 and the judged weather condition.
And 500, acquiring outdoor daylight color temperature and indoor working surface horizontal illuminance or human eye vertical illuminance at the current time in real time. S600: controlling and adjusting the color temperature of the indoor LED within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic lighting mode; and controlling and adjusting the illuminance of the indoor LED within the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time until the horizontal illuminance or the vertical illuminance of the indoor LED of the working surface meets the specific illuminance parameter corresponding to the indoor dynamic lighting mode.
It should be noted that, the adjustment sequence of the color temperature and the illuminance of the indoor LEDs in step 600 is not sequential, and may be performed simultaneously.
As shown in fig. 9, the present application further provides an indoor dynamic lighting adjustment system suitable for human biorhythm, which includes a natural light data statistics module 1, an indoor dynamic lighting mode module 2, a time module 3, a weather module 4, an acquisition module 5, a daylight color temperature acquisition module 6, an indoor illuminance acquisition module 7, and a control module 8.
The natural light data statistical module 1 acquires natural light data for a long time and analyzes the natural light change rule. The indoor dynamic illumination mode module 2 determines the indoor dynamic illumination mode simulating the natural light change rule under different weather conditions and different time periods according to the natural light change rule obtained by analysis and by combining the human body biorhythm curve, the indoor illumination satisfaction degree and the indoor light environment requirement.
The time module 3 is configured to obtain a current time, and the weather module 4 is configured to obtain a weather condition of the current time, and determine whether the weather is sunny or cloudy (including rainy).
The obtaining module 5 determines a corresponding indoor dynamic lighting mode according to the current time and the weather condition of the current time.
The daylight color temperature acquisition module 6 is used for acquiring the outdoor daylight color temperature at the current time; the indoor illuminance acquisition module 7 is used for acquiring the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time;
the control module 8 controls and adjusts the color temperature of the indoor LED in the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time, and controls and adjusts the illuminance of the indoor LED in the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time.
The natural light data statistics module 1 includes a color temperature data statistics module 11 and an illumination data statistics module 12.
The color temperature data statistical module 11 is used for collecting color temperature data of natural light for a long time, and performing statistical analysis to obtain the sunlight color temperature change rules of different weather conditions and different time periods.
The illuminance data statistics module 12 is configured to collect illuminance data of the natural light for a long time, and perform statistical analysis to obtain a change rule of the natural illuminance at different weather conditions and different time periods.
The control module 8 further includes a color temperature feedback module 81 and a light intensity feedback module 82.
The color temperature feedback module 81 is used for feeding back the current outdoor daylight color temperature collected in real time, so as to control and adjust the color temperature of the indoor LED until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic illumination mode.
The illuminance feedback module 82 is configured to feed back the currently acquired horizontal illuminance of the working surface in the room or the vertical illuminance of human eyes in real time, so as to control and adjust the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED until the horizontal illuminance or the vertical illuminance of human eyes of the working surface of the indoor LED meets a specific illuminance parameter corresponding to the indoor dynamic lighting mode.
To sum up, this application is according to the specific demand of indoor luminous environment, under the prerequisite that guarantees the visual health, with the active mood of mobilization, promote work efficiency and give first place to, provide the basic luminous environment index of dynamic lighting: giving illumination of relatively high color temperature/high illumination (6000K/750lx) in the morning work start period, the intense light stimulation waking up the brain excitement of a person; then, the indoor light environment simulates the change rule of natural light, the illuminance slowly rises, the indoor color temperature changes along with the natural light in a sunny day (the general trend is that the color temperature rises), the color temperature keeps 6000K in a cloudy day to restrain high melatonin, and the high working efficiency in the whole working period is kept; reducing the color temperature/low illumination (3000K/300lx) in the middle of the day to allow people to fully rest; the high color temperature/high illumination is given again at the beginning of work in the afternoon, the brain excitement of a person is awakened by strong light stimulation again, then the indoor light environment simulates the change rule of natural light, the illumination slowly decreases until the afternoon time is reduced to low illumination, the indoor color temperature changes along with the natural light in a sunny day (the general trend is that the indoor color temperature decreases), the color temperature in a cloudy day keeps 6000K, and the higher working efficiency of the whole working time is kept. The dynamic illumination adjusting mode is consistent with the change rule of outdoor natural light, accords with the biological rhythm of a human body, considers different weather conditions, is beneficial to adjusting and improving the emotion of people, and can improve the working efficiency.
The present application provides a method and system for dynamic illumination adjustment suitable for human biorhythm. The description of the specific embodiments is only intended to facilitate an understanding of the methods of the present application and their core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. An indoor dynamic illumination adjusting method suitable for human body biological rhythm, which is characterized by comprising the following steps:
acquiring natural light data for a long time and analyzing to obtain a natural light variation rule;
determining indoor dynamic lighting modes simulating the natural light change rule under different weather conditions and different time periods according to the natural light change rule obtained by analysis and by combining a human body biorhythm curve, indoor illuminance satisfaction and indoor light environment requirements;
acquiring current time;
judging the weather condition of the current time;
acquiring an indoor dynamic lighting mode corresponding to the current time and weather conditions;
collecting outdoor daylight color temperature and indoor working surface horizontal illuminance or human eye vertical illuminance at the current time in real time;
controlling and adjusting the color temperature of the indoor LED within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time;
and controlling and adjusting the illuminance of the indoor LED within the corresponding indoor dynamic illumination mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time.
2. The method as claimed in claim 1, wherein the analyzing of the collected natural light data for a long time to obtain the natural light variation law specifically comprises:
collecting color temperature data and illuminance data of natural light for a long time, and performing statistical analysis to obtain the change rules of the color temperature and the illuminance of the natural light in different weather conditions and different time periods respectively;
the indoor dynamic illumination mode corresponds to the adjustment mode and range of the specific color temperature parameter and illuminance parameter.
3. The method as claimed in claim 1, wherein the biorhythm curve is a periodic curve of melatonin, cortisol, alertness and body temperature of the human body at different time intervals per day.
4. The method of claim 1, wherein the indoor dynamic lighting environment is specifically selected from the group consisting of:
in the working period, the physiological equivalent illumination value is not lower than 250 lx; the physiological equivalent illuminance value is not higher than 50lx during the rest period.
5. The method according to claim 1, wherein the weather condition for determining the current time is specifically:
the method comprises the steps of dividing a sky hemisphere of an environment into a plurality of measuring point units, collecting sky spectrum brightness of each measuring point unit, and comprehensively judging whether the current weather condition is a sunny day or a cloudy day by combining a sky hemisphere photo and rainfall information according to the CIE (Commission on the International illumination Commission) sky brightness distribution standard.
6. The method as claimed in claim 5, wherein the dynamic indoor lighting modes of different weather conditions and different time periods include adjusting modes and ranges corresponding to specific color temperature parameters and illuminance parameters, specifically:
morning wake-up mode, time period 8 a.m.: 00-9: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is 750lx of horizontal illuminance of a working surface or 150lx of vertical illuminance of human eyes;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
natural light simulation mode 1, with a time period of 9 am: 00-12: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is increased from 750lx to 2000lx, or the vertical illuminance of human eyes is increased from 150lx to 400 lx;
fast-falling transition mode, with the time period of 12 noon: 00-12: 30, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is reduced from 2000lx to 300lx, or the vertical illuminance of human eyes is reduced from 400lx to 60 lx;
noon rest mode, with the time period at noon 12:30-13:30, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is the horizontal illuminance of a working surface of 300lx or the vertical illuminance of human eyes of 60 lx;
fast-up transition mode, with a period of 13 pm: 30-14: 00, when the weather conditions are sunny days and cloudy days, the corresponding color temperature parameter is 3000K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is increased from 300lx to 2000lx, or the vertical illuminance of human eyes is increased from 60lx to 400 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is sunny, the corresponding color temperature parameter changes in real time along with the color temperature of outdoor sunlight, the range of the color temperature parameter is 4000K-6500K, and the corresponding illuminance parameter is that the horizontal illuminance of a working surface is reduced from 2000lx to 500lx, or the vertical illuminance of human eyes is reduced from 400lx to 100 lx;
natural light simulation mode 2, with a period of 14 pm: 00-18: 00, when the weather condition is cloudy, the corresponding color temperature parameter is 6000K, and the corresponding illuminance parameter is that the horizontal illuminance of the working surface is decreased from 2000lx to 500lx, or the vertical illuminance of human eyes is decreased from 400lx to 100 lx.
Where K is the color temperature unit Kelvin and lx is the illuminance unit lux.
7. The method of claim 1, wherein the adjusting the color temperature of the indoor LED according to the current time of the outdoor daylight color temperature in the corresponding indoor dynamic lighting mode range further comprises:
collecting the current outdoor daylight color temperature in real time so as to control and adjust the color temperature of the indoor LED until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic illumination mode;
the controlling and adjusting the illuminance of the indoor LED within the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time further comprises:
and acquiring the horizontal illuminance or the vertical illuminance of human eyes of the working surface in the current room in real time so as to control and adjust the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED until the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED meets the specific illuminance parameter corresponding to the indoor dynamic illumination mode.
8. An indoor dynamic lighting adjustment system adapted for human biorhythms, comprising:
the natural light data statistics module acquires natural light data for a long time and analyzes the natural light data to obtain a natural light variation rule;
the indoor dynamic illumination mode module is used for determining indoor dynamic illumination modes simulating the natural light change rule under different weather conditions and different time periods according to the natural light change rule obtained by analysis and by combining a human body biorhythm curve, indoor illumination satisfaction and indoor light environment requirements;
a time module for obtaining a current time;
the weather module is used for acquiring the weather condition of the current time and judging whether the weather condition is sunny or cloudy;
the acquisition module is used for determining a corresponding indoor dynamic illumination mode according to the current time and the weather condition of the current time;
the daylight color temperature acquisition module is used for acquiring the outdoor daylight color temperature at the current time;
the indoor illuminance acquisition module is used for acquiring the horizontal illuminance of an indoor working surface or the vertical illuminance of human eyes at the current time;
and the control module controls and adjusts the color temperature of the indoor LEDs within the corresponding indoor dynamic lighting mode range according to the outdoor daylight color temperature at the current time, and controls and adjusts the illuminance of the indoor LEDs within the corresponding indoor dynamic lighting mode range according to the horizontal illuminance of the indoor working surface or the vertical illuminance of human eyes at the current time.
9. An indoor dynamic illumination adjustment system suitable for human body biorhythm according to claim 8, wherein the natural light data collection module comprises:
the color temperature data statistical module is used for collecting color temperature data of natural light for a long time, and performing statistical analysis to obtain the change rules of the daylight color temperature in different weather conditions and different time periods;
and the illuminance data statistics module is used for collecting illuminance data of the natural light for a long time, and performing statistical analysis to obtain the change rules of the natural illuminance at different weather conditions and different time periods.
10. An indoor dynamic illumination adjustment system adapted for human biorhythm as claimed in claim 9, wherein said control module further comprises:
the color temperature feedback module is used for collecting the current outdoor sunlight color temperature in real time so as to control and adjust the color temperature of the indoor LED until the color temperature of the indoor LED meets the specific color temperature parameter corresponding to the indoor dynamic illumination mode;
and the illuminance feedback module is used for acquiring the horizontal illuminance of the working surface in the current room or the vertical illuminance of human eyes in real time so as to control and adjust the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED until the horizontal illuminance or the vertical illuminance of the working surface of the indoor LED meets the specific illuminance parameter corresponding to the indoor dynamic lighting mode.
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