CN117858300A - Spectrum control method and system based on health illumination, LED light source and illumination device - Google Patents
Spectrum control method and system based on health illumination, LED light source and illumination device Download PDFInfo
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Abstract
The application provides a spectrum control method and system based on health illumination, an LED light source and an illumination device, wherein the method comprises the following steps: acquiring LED light sources with different spectrums; mixing light of different LED light sources according to the sunlight-like, rhythm-like and green-plant illumination factors; performing health illumination evaluation on the spectrum after the light mixing treatment; and determining a final mixed spectrum according to the evaluation result. The spectrum control of the application integrates the green ornamental plant to improve the living environment, improves living light comfortableness, and the psychological and physiological health of the living, adopts the full spectrum design technology of mixed light, can reduce the environmental glare and the fatigue degree through the light environment change of the spectrum, the light intensity and the light color in a specific time period, and is assisted to relieve the negative psychological emotion by the green plant.
Description
Technical Field
The application belongs to the technical field of spectrum control, relates to a spectrum control method, and particularly relates to a spectrum control method, a spectrum control system, an LED light source and a lighting device based on healthy lighting.
Background
Currently, the traditional illumination standard is mainly required for 'artificial light' illumination in the horizontal illuminance, uniformity, glare value of a working surface, color temperature and color rendering index of a light source and the like. The existing intelligent lighting control system can improve the life quality in certain aspects, and by creating different atmospheres and scenes, proper lighting is provided according to different occasions, so that the life experience is improved.
However, the existing lighting system does not consider much factors such as the living environment of the resident, the comfort of living light, and the psychophysiological health of the resident.
Disclosure of Invention
The application provides a spectrum control method, a system, an LED light source and a lighting device based on health lighting, which are used for solving the problem of health lighting from multiple aspects.
In a first aspect, the present application provides a method of spectrum control based on healthy lighting, the method comprising: acquiring LED light sources with different spectrums; mixing light of different LED light sources according to the sunlight-like, rhythm-like and green-plant illumination factors; performing health illumination evaluation on the spectrum after the light mixing treatment; and determining a final mixed spectrum according to the evaluation result.
In an implementation manner of the first aspect, the step of obtaining LED light sources with different spectrums includes: at least three basic spectrum LED light sources are obtained.
In an implementation manner of the first aspect, the step of performing light mixing processing on different LED light sources according to the daylight-like, rhythm-like and green-plant lighting factors includes: adjusting the mixed light spectrum according to the sunlight-like spectrum; adjusting the light mixing spectrum according to pre-sleep guidance and wake-up lighting needs among rhythmic factors; and adjusting the mixed light spectrum in combination with the green plant growth state.
In an implementation manner of the first aspect, the step of adjusting the mixed light spectrum according to the pre-sleep guidance and wake-up lighting needs in the rhythm factors includes: turning down the blue light component in the mixed light spectrum according to pre-sleep guidance in a rhythm factor; the blue component of the mixed spectrum is turned up according to the wake-up illumination in the rhythm factor.
In an implementation manner of the first aspect, the step of performing health illumination evaluation on the spectrum after the light mixing treatment includes: the method comprises the steps of (1) evaluating the similarity degree of a mixed light spectrum and natural sunlight by carrying out sunlight similarity calculation on the spectrum after the mixed light treatment; the influence degree of the mixed light spectrum on the melatonin secretion of the human body is estimated by carrying out rhythm index calculation on the light spectrum after the mixed light treatment; and (3) evaluating the growth condition of the mixed light spectrum after green plant illumination by carrying out light intensity calculation on the spectrum after the mixed light treatment.
In a second aspect, the present application provides a health lighting based spectrum control system, the system comprising: the light source acquisition module is configured to acquire LED light sources with different spectrums; the light mixing processing module is configured to perform light mixing processing on different LED light sources according to sunlight-like, rhythm factors and green plant illumination factors; the illumination evaluation module is configured to perform health illumination evaluation on the spectrum after the light mixing treatment; and a spectrum determining module configured to determine a final mixed spectrum according to the evaluation result.
In a third aspect, the present application provides an LED light source, where a spectrum corresponding to the LED light source is controlled according to the method.
In a fourth aspect, the present application provides a lighting device comprising the LED light source.
In an implementation manner of the fourth aspect, the lighting device further includes: an LED dimming power supply; the LED dimming power supply is electrically connected with the LED light source and controls the spectrum change of the LED light source.
In one implementation manner of the fourth aspect, the LED light source includes a first LED array, a second LED array, a third LED array, and a fourth LED array; the LED dimming power supply comprises a first driving power supply, a second driving power supply, a third driving power supply and a fourth driving power supply; the first driving power supply controls the spectral variation of the first LED array; the second driving power supply controls the spectral variation of the second LED array; the third driving power supply controls the spectral variation of the third LED array; the fourth driving power supply controls a spectral variation of the fourth LED array.
As described above, the spectrum control method, system, LED light source and lighting device based on health lighting described in the application have the following beneficial effects:
the application combines sunlight-like, rhythm-like and green plant lighting multifaceted factors to carry out mixed light treatment on different LED light sources, spectrum control of the mixed light treatment integrates green ornamental plants to improve living environment, living light comfortableness and psychological and physiological health of residents are improved, a mixed light full-spectrum design technology is adopted, and through spectrum, light intensity and light color light environment change in a specific time period, the environment glare and fatigue degree can be reduced, and negative psychological emotion is relieved by green plants in an auxiliary mode.
Drawings
Fig. 1 shows an application scenario schematic diagram of a spectrum control method based on health illumination according to an embodiment of the application.
Fig. 2 shows a schematic flow chart of a spectrum control method based on health illumination according to an embodiment of the application.
Fig. 3 shows a plant growth illumination graph for a health illumination-based spectrum control method according to an embodiment of the present application.
Fig. 4 shows a diagram of the trichromatic mixing results of the health-based spectral control method according to the embodiment of the present application.
Fig. 5 shows a four-color light mixing result chart of the spectrum control method based on health illumination according to the embodiment of the application.
Fig. 6 shows a four-color light base spectrum schematic diagram of a spectrum control method based on health illumination according to an embodiment of the application.
Fig. 7 shows a four-color light mixing effect diagram of a spectrum control method based on health illumination according to an embodiment of the application.
Fig. 8 shows a schematic structural diagram of a health-based illumination spectrum control system according to an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a lighting device according to an embodiment of the present application.
Fig. 10 is a schematic diagram illustrating a dimming principle of a lighting device according to an embodiment of the present application.
Description of element reference numerals
8. Spectrum control system based on health illumination
81. Light source acquisition module
82. Mixed light processing module
83. Lighting evaluation module
84. Spectrum determining module
9. Lighting device
91 LED light source
92 LED dimming power supply
S21 to S24 steps
Detailed Description
Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that, the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
The following embodiments of the present application provide a spectrum control method, system, LED light source and lighting device based on health lighting, including but not limited to, converting artificial light with poor continuity into daylight-like light with good continuity and excellent color rendering performance through spectrum dimming.
Fig. 1 is a schematic diagram of an application scenario of a spectrum control method based on health illumination according to an embodiment of the application. As shown in fig. 1, the spectrum of the conventional LED artificial light source is excited by using yellow fluorescent powder to generate white light on a blue light chip, and this embodiment provides a specific dimming application of a spectrum control method based on healthy illumination, which converts the artificial light with uneven left relative spectrum and poor continuity into sunlight-like light with good continuity and good color rendering property on the right side through spectrum dimming. The natural light (or similar sunlight) is compared with the artificial light spectrum under the same 6500K color temperature, the similar sunlight spectrum is not only continuous and full and balanced, and has excellent color rendering performance, but also simulates the similar sunlight spectrum to the greatest extent, and the color point coordinates corresponding to different target color temperatures on the blackbody radiation curve have smaller color tolerance (for example, SDCM < 3), so that healthy illumination is effectively realized.
Health lighting ("artificial lighting") is a human-based application of lighting technology to meet the lighting requirements of human physiological health, and provides sustainable positive effects for working environments, so that people can obtain help in the aspects of body, emotion, performance, comfort, health, happiness and the like. In short, human health illumination refers to illumination technology for adjusting light, especially light intensity distribution and spectral composition, according to physiological health requirements of a human.
The following describes the technical solutions in the embodiments of the present application in detail with reference to the drawings in the embodiments of the present application.
Referring to fig. 2, a schematic flow chart of a spectrum control method based on health illumination according to an embodiment of the present application is shown.
As shown in fig. 2, the present embodiment provides a spectrum control method based on health illumination, which specifically includes the following steps:
s21, obtaining LED light sources with different spectrums.
In one embodiment, step S21 includes: at least three basic spectrum LED light sources are obtained.
S22, mixing light treatment is carried out on different LED light sources according to the sunlight-like, rhythm factors and green plant lighting factors.
In one embodiment, step S22 specifically includes:
(1) The light mixing spectrum is adjusted according to the sunlight-like spectrum.
Specifically, natural light has good light uniformity, continuous and balanced spectrum, high color rendering index of the light source, and periodical change of sunlight accords with the biological rhythm of a human body. In practical applications, in the specific adjustment of the spectrum, the spectral components with different wavelength values are adjusted as continuously and uniformly as possible according to the adjustment mode shown in fig. 1.
(2) The mixed light spectrum is adjusted according to pre-sleep guidance and wake-up lighting needs among the rhythmic factors.
Specifically, the non-visual effect is also called as the shi visual effect, which means that besides cone cells (Cones) and rod cells (Rods) which are responsible for animal vision, intrinsic photosensitive retinal ganglion cells (ipRGCs) exist on the retina of the human eye, and the non-visual effect except vision is responsible for regulating functions such as time management, and coordinating and controlling the activity rhythms and amplitudes of people in different time periods. Whereas melatonin secretion has a pronounced circadian rhythm, daytime secretion is inhibited and evening secretion is active. The excitation of the sympathetic nerves is closely related to the energy and color of the light reaching the pine cone, the light color and illumination intensity can influence the secretion and release of melatonin, and the periodic natural sunlight can calibrate the rhythm of the human body to the period of 24 hours of earth rotation.
In an embodiment, the step of adjusting the mixed spectrum according to the pre-sleep guidance and wake-up lighting needs in the rhythm factors includes:
(2.1) turning down the blue light component of the mixed light spectrum according to pre-sleep guidance in a rhythmic factor;
(2.2) turning up the blue component of the mixed spectrum according to the wake-up illumination in the rhythmic factor.
Specifically, the most relevant illumination index with rhythmic illumination and space brightness is indirect light eye vertical illumination, and because different light sensitive cells have different light sensitivity to different wavelengths, the highest response wavelength of the non-visual ipRGCs is about 480nm, and the non-visual ipRGCs mainly comprises blue light components, and the highest response wavelength is greatly different from the peak 555nm of visual induction of people, so that the pre-sleep guidance can be realized by lowering the blue light components, and the wake-up illumination function can be realized by raising the blue light components.
(3) And adjusting the mixed light spectrum in combination with the green plant growth state.
In particular, some indoor green plants are beneficial to physical, physiological, psychological and health, and if the indoor environment lacks sunlight in a closed space, the plant growth is maintained but can not be fast grown by integrating proper spectrum and light intensity of plant illumination into the human health lighting lamp. Referring to fig. 3, a plant growth illumination diagram of a spectrum control method based on health illumination according to an embodiment of the present application is shown. As shown in FIG. 3, the light compensation point is the light intensity above the compensation point satisfying green plants when the mixed light spectrum is adjusted by combining the growth state of the green plants, and the light intensity of the indoor green plants light compensation point is about 50umol/s.m2.
In practical application, the plant illumination can be started at a time point when people are not in the room, and proper photosynthesis is supplied for green plants, so that the spectrum required by the sunlight-like spectrum and the plant illumination simulates the daily spectral change adapted to human bodies and plants.
In practical application, different priorities or weights can be set for the sunlight-like, rhythm factors and green plant lighting factors, and different LED light sources are subjected to light mixing treatment according to the sunlight-like principle and the rhythm factors and the green plant lighting factors; or mixing light of different LED light sources according to the principle of rhythm factors and the combination of sunlight-like and green-plant illumination factors; or mixing light of different LED light sources according to the principle of green lighting factors and the combination of sunlight-like and rhythm factors.
In practical application, after light mixing treatment, the number proportion relation of the LED particles in the LED light sources with various basic spectrums is obtained, and further, based on the determined proportion relation, the specific number of the LED particles in the LED light sources with various basic spectrums is determined according to the parameters of the light power, the electric power and the light sources.
S23, performing health illumination evaluation on the spectrum after the light mixing treatment.
In particular, the application mainly uses luminous flux, color point coordinates, correlated color temperature, color tolerance with target color temperature and color rendering index R a ，R 9 The method comprises the following steps of calculating relevant technical parameters, such as sunlight similarity GFC, rhythm index MPR, plant illumination PPF and the like:
a. calculating luminous flux:
wherein Y is the luminous flux divided by 683, and the luminous efficiency can be obtained by the given input electric power.
b. Calculating color point coordinates: from the following components
Push out->
Y＝F
Thereby yielding the color point coordinates of the mixed spectrum:
F＝Y 1 +Y 2 ＝F 1 +F 2 .
c. color temperature calculation, correlated color temperature T of light source k to be measured c Using the formula:
T c ＝669A 4 -779A 3 +3660A 2 7047A+5652, when (2000 K.ltoreq.T c ≤10000K)x k ,y k Refers to the color point coordinates of the light source to be measured,
T c ＝669A 4 -779A 3 +3660A 2 7047A+5210 when (10000 K.ltoreq.T) c ≤15000K)
x k ,y k Refers to the color point coordinates of the light source to be measured,
d. color tolerance calculation at correlated color temperature Tc The position of the part Color tolerance with a reference color point at the target daylight color temperature:
(ds) 2 ＝g 11 (dx) 2 +2g 12 dxdy+g 22 (dy) 2 ,SDCM＝ds,
e. color rendering index R a And R is R 9 Calculation is possible in particular by CIE1964W * U * V * The formula is calculated:
wherein u' k ＝u r ，v′ k ＝v r ,
R i ＝100-4.6ΔE i
Wherein R is a For the average of the first 8 values, R 9 The 9 th value.
In one embodiment, step S23 specifically includes:
(1) And (3) evaluating the similarity degree of the mixed light spectrum and natural sunlight by carrying out sunlight similarity calculation on the spectrum after the mixed light treatment.
Specifically, the solar similarity calculation method is applicable to both a relative spectrum and an absolute spectrum by using a covariance calculation method:
wherein λ represents wavelength, S LED Representing the existing spectral curve S Target Representing a target spectral curve.
(2) And (3) evaluating the influence degree of the mixed light spectrum on the melatonin secretion of the human body by performing rhythm index calculation on the spectrum after the mixed light treatment.
Specifically, the melatonin flux can be used for calculating the absolute value of luminous flux under the melatonin spectral efficiency of different light source spectrums, more commonly, the MPR and M/P ratio are adopted, the higher the value is, the more effective the same photopic vision luminous flux can inhibit the synthesis of melatonin, so that people are more excited to reduce visual fatigue, the lower the opposite value is, the synthesis of melatonin under the human body rhythm period is not inhibited, the luminous flux can be used as sleep guidance, the calculation formula is as follows,
p (lambda) is the spectral irradiance distribution of the light source under test, K m，mel ＝832lm/W。
Wherein, MPR tableThe contrast measure is shown, M represents the melanin measure, P represents the luminosity measure, K m Luminosity efficacy constant, K, representing luminosity vision m,mel Luminosity efficacy constant representing melanin vision, P (lambda) represents spectral power distribution function, S mel (lambda) represents the spectral sensitivity function of melanin vision, lambda represents the wavelength, integral from 380 to 780 nm: representing the visible spectrum.
(3) And (3) evaluating the growth condition of the mixed light spectrum after green plant illumination by carrying out light intensity calculation on the spectrum after the mixed light treatment.
Specifically, the light intensity calculation formula of the plant illumination portion for the light source is as follows:
wherein P (lambda) is the spectral irradiation intensity distribution of the tested light source, h is the Planck constant, c is the speed of light, and NA is the Alfogale constant.
S24, determining a final mixed spectrum according to the evaluation result.
Specifically, if the two-channel power supply adjustment is only capable of realizing color point change in a line segment between two color point coordinates, three color point coordinates of a curve segment required by a black body radiation curve (if color temperatures are required to be 2700K to 6500K), namely three basic spectrum data are mixed according to different channel proportions, and the color point coordinate adjustment can be completely realized.
Referring to fig. 4, a three-color mixing result chart of the spectrum control method based on the health illumination according to the embodiment of the application is shown. As shown in fig. 4, the abscissa is the x-axis color coordinate, the ordinate is the y-axis color coordinate, and the three basic spectrum data are mixed according to different channel proportions, so that the color point coordinate adjustment is realized, but only one channel proportion data solution is provided for one color point coordinate, the color point coordinate is only a great loss of spectrum hilbert continuous space data information, even if the spectrum hilbert continuous space data is divided into 1nm intervals, the visible light wave band from 380nm to 780nm is 401-dimensional independent space data and is reduced into two-dimensional color point coordinate data.
Referring to FIG. 5, a base according to an embodiment of the present application is shownFour-color mixing result diagram of the spectrum control method of the health illumination. As shown in FIG. 5, the abscissa is the x-axis color coordinate, the ordinate is the y-axis color coordinate, if the spectrum data which can be flexibly changed needs to be solved, four basic spectrums are suitable, in visual sense, there can be countless solutions corresponding to the color point coordinates of the characteristics of a chromaticity diagram, and the illumination index combination such as the display finger R with certain simple dimensions is synthesized a ，R 9 The spectrum similarity with natural light, rhythmic illumination indexes and the like are relatively easy, the four-color mixed light in fig. 5 can have infinite solutions, and thus the four-color mixed light has advantages because of flexibility and variability when other indexes besides the color point coordinate are satisfied.
Referring to fig. 6, a four-color light basic spectrum diagram of a spectrum control method based on health illumination according to an embodiment of the present application is shown. As shown in fig. 6, the assumed basic spectrum data of four LEDs is shown, and in practical application, the spectrum may be slightly adjusted by communication with the relevant suppliers.
Referring to fig. 7, a four-color light mixing effect chart of a spectrum control method based on health illumination according to an embodiment of the application is shown. As shown in fig. 7, by continuously optimizing the basic spectrum data of the LED particles, adjusting the duty ratio of each channel in the intelligent control of the multi-channel power supply, the difference between the test result of the LED lighting lamp sample and the theoretical simulation data, fig. 7 shows the effect after the actual four LED basic spectrum data (hypo_1, hypo2, hypo_3, hypo_4) are mixed. The parameter indexes of the test results of the actual lamps are shown in table 1.
Table 1 results of implementation of four-color mixed light full spectrum scheme
The above-mentioned four-color light mixed light 'sunlight-like' healthy lighting spectrum control scheme can simulate the dynamic light of sunlight or the dynamic atmosphere light combined with indoor media interface, the spectrum can be added with certain red light component, the sleeping or emotion condition can be obviously improved in certain specific places, such as the outside of a closed extreme environment field, according to factors such as light climate zone, seasonal characteristics, operation type, space use period, activity duration and the like, such as office space with high working strength and serious fatigue; meeting space with higher use frequency and longer operation time; areas where the midnight period exists in winter, indoor spaces, underground spaces or long-time closed environments in areas where lighting is unfavorable, and the like. The set of healthy illumination spectrum control scheme plays a positive role in regulating the psychological emotion and the physiological rhythm of long-term operators in the environments, and has a good promoting effect on improving the learning and working efficiency.
Therefore, the four-color light mixing technology is more suitable for realizing a 'sunlight-like' healthy lighting scheme, the existing LED mature packaging material technology is utilized to obtain high light efficiency and low cost, the existing large-scale conventional LED particles are used for shipment in the maximized mode, and one or two types of LED particles with certain spectrum can be customized as little as possible. The four-color light mixing technology has the advantages of light efficiency, cost performance, mass production delivery time and the like, so that the market popularization is more competitive. Meanwhile, in practical application, infinite solution of the technology shows that the same color or color temperature can be realized by different spectrums, and in the spectrum application of the sleep guiding or waking function, visual fatigue effect can be generated by changing the color temperature, the metamerism realized by the four-color light mixing is very advantageous, and particularly when indexes such as MPR and the like are higher than the priority of color rendering index and the like, the spectrum can be adjusted flexibly to realize higher or lower MPR value.
Therefore, the sunlight-like healthy lighting scheme in the application uses the white light source directly emitting light of the multi-primary color LED chip, the highest efficient optical efficiency and the superhigh cost performance of the conventional white light are realized, different natural light spectrums are mixed into the white light through the intelligent control multi-channel power supply adjustable technology to realize the on-demand adjustment of the spectrums, the requirements of various technical parameters are met, the rhythmic lighting is realized, and meanwhile, the plant growth is maintained by the plant lighting part when the spectrum intensity of the mixed spectrums is larger than the light compensation point intensity value, so that the plant ornamental value is maintained.
The protection scope of the spectrum control method based on health illumination according to the embodiment of the application is not limited to the execution sequence of the steps listed in the embodiment, and all the schemes implemented by adding or removing steps and replacing steps according to the prior art made by the principles of the application are included in the protection scope of the application.
The embodiment of the application also provides a spectrum control system based on health illumination, which can realize the spectrum control method based on health illumination, but the implementation device of the spectrum control method based on health illumination, which is described in the application, includes but is not limited to the structure of the spectrum control system based on health illumination, and all the structural modifications and substitutions of the prior art according to the principles of the application are included in the protection scope of the application.
Referring to fig. 8, a schematic structural diagram of a spectrum control system based on health illumination according to an embodiment of the present application is shown. As shown in fig. 8, the present embodiment provides a spectrum control system 8 based on health illumination, including: a light source acquisition module 81, a light mixing processing module 82, an illumination evaluation module 83, and a spectrum determination module 84.
The light source acquisition module 81 is configured to acquire LED light sources of different spectra.
In one embodiment, the light source acquisition module 81 is specifically configured to acquire at least three basic spectrum LED light sources.
The light mixing processing module 82 is configured to mix different LED light sources according to daylight-like, rhythmic factors, and green plant lighting factors.
In one embodiment, the light mixing processing module 82 is specifically configured to adjust the light mixing spectrum according to the daylight-like spectrum; adjusting the light mixing spectrum according to pre-sleep guidance and wake-up lighting needs among rhythmic factors; and adjusting the mixed light spectrum in combination with the green plant growth state.
The illumination evaluation module 83 is configured to perform a health illumination evaluation of the light spectrum after the light mixing process.
In one embodiment, the illumination evaluation module 83 is specifically configured to evaluate the similarity of the mixed spectrum with natural sunlight by performing a sunlight similarity calculation on the spectrum after the mixed spectrum is processed. And (3) evaluating the influence degree of the mixed light spectrum on the melatonin secretion of the human body by performing rhythm index calculation on the spectrum after the mixed light treatment. And (3) evaluating the growth condition of the mixed light spectrum after green plant illumination by carrying out light intensity calculation on the spectrum after the mixed light treatment.
The spectrum determination module 84 is configured to determine a final hybrid spectrum based on the evaluation result.
In the several embodiments provided in this application, it should be understood that the disclosed system or method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, e.g., the division of modules/units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple modules or units may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules or units, which may be in electrical, mechanical or other forms.
The modules/units illustrated as separate components may or may not be physically separate, and components shown as modules/units may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules/units may be selected according to actual needs to achieve the purposes of the embodiments of the present application. For example, functional modules/units in various embodiments of the present application may be integrated into one processing module, or each module/unit may exist alone physically, or two or more modules/units may be integrated into one module/unit.
Those of ordinary skill would further appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The application provides an LED light source, the spectrum corresponding to the LED light source is controlled according to the spectrum control method based on healthy illumination. The spectrum control method based on health illumination comprises the following steps: acquiring LED light sources with different spectrums; mixing light of different LED light sources according to the sunlight-like, rhythm-like and green-plant illumination factors; performing health illumination evaluation on the spectrum after the light mixing treatment; and determining a final mixed spectrum according to the evaluation result.
In practical application, the LED light sources with different spectrums are used, and based on a multichannel power supply driving current adjusting technology, natural light spectrums with different color temperatures can be mixed through external intelligent control. Therefore, the LED light source provided by the application can be used for manufacturing the human-caused health lighting lamp, and the human-caused health lighting lamp is integrated to improve the comfort of living light, the psychological and physiological health of a resident, the environment of the green ornamental plant is improved, and the like.
Referring to fig. 9, a schematic structural diagram of a lighting device according to an embodiment of the present application is shown. As shown in fig. 9, the present application provides a lighting device including the LED light source.
In an embodiment, the lighting device further comprises: and an LED dimming power supply.
The LED dimming power supply is electrically connected with the LED light source and controls the spectrum change of the LED light source.
In one embodiment, the LED light source comprises a first LED array, a second LED array, a third LED array, and a fourth LED array; the LED dimming power supply comprises a first driving power supply, a second driving power supply, a third driving power supply and a fourth driving power supply.
The first driving power supply controls the spectral variation of the first LED array; the second driving power supply controls the spectral variation of the second LED array; the third driving power supply controls the spectral variation of the third LED array; the fourth driving power supply controls a spectral variation of the fourth LED array.
Fig. 10 is a schematic diagram illustrating a dimming principle of a lighting device according to an embodiment of the disclosure. As shown in fig. 10, the power multichannel intelligent control technology can be implemented by DALI (Digital Addressable LightingInterface ) dimming, wherein the LED driving power sources P1 to P4 are based on different control loops in one LED dimming power source. The plant illumination part can be realized by using the same dimming principle, and can be controlled by using only two channels. Specifically, the first driving power source P1 controls the spectral variation of the first LED array CH 1; the second driving power supply P2 controls the spectral variation of the second LED array CH 2; the third driving power supply P3 controls the spectral variation of the third LED array CH 3; the fourth driving power P4 controls the spectral variation of the fourth LED array CH 4. The DALI/DSI signal sent from the outside is received and executed by the single chip microcomputer, and the single chip microcomputer transmits the PWM1 to the LED driving power supply P1, the PWM2 to the LED driving power supply P2, the PWM3 to the LED driving power supply P3, and the PWM4 to the LED driving power supply P4 according to the executed dimming control instruction.
The descriptions of the processes or structures corresponding to the drawings have emphasis, and the descriptions of other processes or structures may be referred to for the parts of a certain process or structure that are not described in detail.
The foregoing embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the disclosure be covered by the claims of this application.
Claims (10)
1. A method of spectral control based on healthy lighting, the method comprising:
acquiring LED light sources with different spectrums;
mixing light of different LED light sources according to the sunlight-like, rhythm-like and green-plant illumination factors;
performing health illumination evaluation on the spectrum after the light mixing treatment;
and determining a final mixed spectrum according to the evaluation result.
2. The method of claim 1, wherein the step of obtaining LED light sources of different spectra comprises:
at least three basic spectrum LED light sources are obtained.
3. The method of claim 1, wherein the step of mixing different LED light sources according to daylight-like, rhythmic and green plant lighting factors comprises:
adjusting the mixed light spectrum according to the sunlight-like spectrum;
adjusting the light mixing spectrum according to pre-sleep guidance and wake-up lighting needs among rhythmic factors;
and adjusting the mixed light spectrum in combination with the green plant growth state.
4. A method according to claim 3, wherein the step of adjusting the light mixing spectrum in accordance with pre-sleep guidance and wake-up lighting needs among rhythmic factors comprises:
turning down the blue light component in the mixed light spectrum according to pre-sleep guidance in a rhythm factor;
the blue component of the mixed spectrum is turned up according to the wake-up illumination in the rhythm factor.
5. The method of claim 1, wherein the step of health illumination assessment of the light-mixed spectrum comprises:
the method comprises the steps of (1) evaluating the similarity degree of a mixed light spectrum and natural sunlight by carrying out sunlight similarity calculation on the spectrum after the mixed light treatment;
the influence degree of the mixed light spectrum on the melatonin secretion of the human body is estimated by carrying out rhythm index calculation on the light spectrum after the mixed light treatment;
and (3) evaluating the growth condition of the mixed light spectrum after green plant illumination by carrying out light intensity calculation on the spectrum after the mixed light treatment.
6. A health lighting-based spectrum control system, the system comprising:
the light source acquisition module is configured to acquire LED light sources with different spectrums;
the light mixing processing module is configured to perform light mixing processing on different LED light sources according to sunlight-like, rhythm factors and green plant illumination factors;
the illumination evaluation module is configured to perform health illumination evaluation on the spectrum after the light mixing treatment;
and a spectrum determining module configured to determine a final mixed spectrum according to the evaluation result.
7. An LED light source, characterized in that the spectrum corresponding to the LED light source is controlled according to the method of any one of claims 1 to 5.
8. A lighting device comprising the LED light source of claim 7.
9. A lighting device as recited in claim 8, wherein said lighting device further comprises: an LED dimming power supply;
the LED dimming power supply is electrically connected with the LED light source and controls the spectrum change of the LED light source.
10. A lighting device as recited in claim 9, wherein said LED light source comprises a first LED array, a second LED array, a third LED array, and a fourth LED array; the LED dimming power supply comprises a first driving power supply, a second driving power supply, a third driving power supply and a fourth driving power supply;
the first driving power supply controls the spectral variation of the first LED array;
the second driving power supply controls the spectral variation of the second LED array;
the third driving power supply controls the spectral variation of the third LED array;
the fourth driving power supply controls a spectral variation of the fourth LED array.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311749423.9A CN117858300A (en) | 2023-12-18 | 2023-12-18 | Spectrum control method and system based on health illumination, LED light source and illumination device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311749423.9A CN117858300A (en) | 2023-12-18 | 2023-12-18 | Spectrum control method and system based on health illumination, LED light source and illumination device |
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