CN112203383B - Multi-spectral LED dimming method - Google Patents
Multi-spectral LED dimming method Download PDFInfo
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Abstract
The invention discloses a multispectral LED dimming method, and relates to the technical field of LED illumination. The method comprises the steps of SS001, preparing a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, determining peak wavelength and half-wave width parameters of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip, driving the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip by corresponding dimming driving modules, and installing the dimming driving modules on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip. According to the invention, the optimization and screening algorithm of the color matching scheme is added in the traditional dimming algorithm, the optimal color matching scheme under certain spectral parameters can be effectively screened out through the optimization and screening algorithm, and meanwhile, through the optimization design, the luminosity and chromaticity errors of the device can be effectively reduced, and the color accuracy of the device is improved.
Description
Technical Field
The invention belongs to the technical field of LED lighting, and particularly relates to a multispectral LED dimming method.
Background
The LED light source is used as a new generation illumination light source, and has the advantages of environmental protection, high efficiency, energy saving, long service life and intellectualization, and is widely used in various illumination display industries. The lighting field has very specific requirements on light source performance, such as luminous efficiency, light quality and luminous angle, wherein the spectral energy distribution of the light source is an important index, and different spectrums are often required in different occasions.
For example, sunlight is a well-known multispectral light source, and visible light has a wavelength of 400-760 nm, is divided into 7 colors of red, orange, yellow, green, cyan, blue and violet after scattering, and is white when concentrated. The white light LED mainly applied to the market at present adopts a mode of adding yellow fluorescent powder into a blue light chip, namely, after the blue light excites the yellow fluorescent powder, part of the blue light is converted into yellow light, and the yellow light is compounded with the rest blue light to generate white light. The output mode of the white light directly causes the phenomenon of low color rendering index and uneven color space distribution of the LED light source. The brightness output of the RGB three-color light chip is also adjusted to achieve the purpose of mixing white light and other color light, and the spectrum of the RGB three-color light chip is only formed by RGB three-color wave crests because of single use of the RGB three-color light, so that the light quality is not high enough.
In addition, the full-spectrum LED plant growth lamp can simulate the principle of solar spectrum proportioning to promote plant growth and development under certain special illumination requirements. The effect of wavelength on plant growth includes: 400-420 nm helps form anthocyanin and resists the elongation of branches and leaves; the thickness of stems and leaves can be increased by 450-460 nm, the plant development is accelerated, and stomatal opening is adjusted; the 550nm promotes the growth of oxygen and helps tissues to better accumulate nutrients; 580nm can promote the growth of roots and the initial stage of germination; 650-660 nm promotes the growth of the whole plant, particularly in the flowering period and the fruiting period, the growth speed is increased (20 days earlier for flowering and 30 days earlier for harvest), the number of fruits is increased by 25% -35%, and the incidence rate of deformed fruits is reduced; the absorption rate of 720-1000 nm is low, cells are stimulated to be prolonged, flowering and seed germination are influenced, and in addition, the full-spectrum LED contains a small amount of ultraviolet rays, so that plant diseases and insect pests can be effectively prevented.
Therefore, it is very meaningful to design a multispectral LED light source with rich and adjustable spectral components, so as to obtain a high-quality LED light source with continuous spectrum and adjustable color temperature.
Disclosure of Invention
The invention aims to provide a multispectral LED dimming method, which solves the problem of poor dimming effect of the existing multispectral LED dimming method through optimization and screening of a light distribution scheme and design of a parameter establishment flow.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a multispectral LED dimming method, which comprises the following steps:
SS001, preparing a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, and determining peak wavelength and half-wave width parameters of the four chips, wherein the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are driven by corresponding dimming driving modules, the dimming driving modules are respectively arranged on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip, and are connected with a single chip microcomputer and an external multi-path independently adjustable constant current source, and the data end of the single chip microcomputer is connected with a control module, a display module or a wireless data transceiver module; the LED light source comprises a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, wherein the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are respectively arranged on four integrating spheres, radiance meters for monitoring unmixed split beam parameters or optical fiber spectrometers for monitoring split beam luminosity and chromaticity parameter information are arranged at light outlets of the four integrating spheres, a reflective mixing device and a light softening plate are arranged below the light outlets of the four integrating spheres, the radiance meters for measuring mixed beam parameters or the optical fiber spectrometers for monitoring total tube bundle luminosity and chromaticity parameter information are arranged below the light softening plate, meanwhile, distributed temperature sensors are respectively arranged on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip and feed the monitored temperature information back to a single chip in real time;
SS002, determining, respectively adjusting the current of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip through a dimming driving module by a variable control method, then respectively adjusting the duty ratios of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip under various wavelengths and outputting PEM waves, fully mixing the four tube bundles in a reflecting and mixing device after the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip work in a set state, and finally mixing and outputting through a light softening plate, and calculating all the proportioning schemes of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip by an exhaustion method;
the singlechip is used for reading potential information of the four dimming driving modules, luminosity and chromaticity parameters of the split beams and luminosity and chromaticity parameters of the mixed total light beams in each color matching scheme in real time in the scheme exhaustion process;
the distributed temperature sensor records temperature data of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip at corresponding positions in the variable changing process and feeds the temperature data back to the single chip microcomputer;
SS003, parameter establishment, real-time corresponding recording of luminosity and chromaticity parameters of the split beams in all the proportioning schemes, corresponding luminosity and chromaticity parameters of the corresponding total beams, corresponding temperature information and corresponding current information, and storing the real-time corresponding recording in a data storage unit, wherein the data storage unit establishes a coordinate system, a relational expression, a power corresponding table, a temperature corresponding table or a simulation model according to the data;
SS004, optimizing and screening light distribution schemes, selecting a certain spectrum value as a data comparison reference value, if the actual matching schemes corresponding to the spectrum value are multiple, performing data comparison on the actual luminosity, chromaticity parameters, temperature and power parameters in each color matching scheme under the spectrum value and the luminosity, chromaticity parameters, temperature and power parameters under a standard reference mode, calculating parameter difference values, selecting the color matching scheme with smaller difference values as an optimal scheme, when the difference values are calculated, taking the luminosity, chromaticity parameters and current or power parameter values as priority values, selecting all the optimal matching schemes in a fitting spectrum range value by using an exhaustion method, sequencing the optimal matching schemes as priority values on a data storage unit, and storing other non-optimal matching schemes as candidate data;
SS005, scheme setting, external PC or mobile terminal set the spectrum value to the apparatus through the wireless data transceiver module or control mode, the optimal scheme under the spectrum value is displayed in the external PC or mobile terminal as the optimal recommended scheme, other schemes are displayed under the recommended scheme as the personalized scheme, the external PC or terminal can shield or call out the personalized scheme through the relevant setting;
SS006, adjust luminance, when the device is through wireless data transceiver module or the control mode adjustment actual illumination luminance of light source under certain color scheme to external PC or mobile terminal, only need the same proportion reduce the luminous power or the current value of four kinds of colour LED can.
Preferably, the optical fiber spectrometer for monitoring the luminosity and the chromaticity parameter information of the split beams and the optical fiber spectrometer for monitoring the luminosity and the chromaticity parameter information of the main tube bundle are electrically connected with the single chip microcomputer.
Preferably, the photometric and colourmetric parameters include colour rendering index, light power, luminous flux, light wavelength, colour coordinates, colour temperature.
Preferably, the reflective mixing device comprises a reflective plate and a light guide plate; the reflector and the light guide plate carry out light homogenizing and mixing treatment on tube bundles emitted by the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip in the SS001 step.
Preferably, the specifications of the four integrating spheres in the SS001 step are the same; the peak wavelength and half-wave width parameters in the SS001 step are different.
Preferably, the multi-path independent adjustable constant current source comprises a processor, a multi-level conversion circuit, a multi-channel DAC circuit and a forward V-I conversion circuit, wherein the processor is connected with the multi-level conversion circuit, the multi-level conversion circuit is connected with the multi-channel DAC circuit, and the multi-channel DAC circuit is connected with the forward V-I conversion circuit.
Preferably, a dimming system is arranged in the single chip microcomputer; the dimming system comprises a microprocessor and a USB interface circuit; the microprocessor is electrically connected with the USB interface circuit; the USB interface circuit is respectively connected with the dimming driving module and the wireless data transceiving module.
Preferably, the control module or the wireless data transceiver module is used for sending and setting spectral parameters and setting brightness parameters to the device.
The invention has the following beneficial effects:
1. according to the invention, the optimization and screening algorithm of the color scheme is added in the traditional dimming algorithm, the optimal color scheme under certain spectral parameters can be effectively screened out through the optimization and screening algorithm, and meanwhile, the luminosity and chromaticity errors of the device can be effectively reduced through the optimization design, and the color accuracy of the device is improved.
2. The invention can monitor the spectral data and other chromaticity data in real time in the dimming process through the reality of the optical fiber spectrometer, and further effectively ensures the accuracy of the spectral value of the device through the real-time monitoring of the data.
3. The device can be suitable for various working scenes and layout environments by adjusting the spectrum and the brightness of the light source, so that the practicability and the universality of the device are effectively improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for dimming a multispectral LED;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1, the present invention is a method for dimming a multispectral LED, including the following steps:
SS001, preparing a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, determining peak wavelength and half-wave width parameters of the four, wherein the peak wavelength and the half-wave width parameters of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are different, and then, the light spectrum with different frequency bands can be emitted;
the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are driven by corresponding dimming driving modules, the dimming driving modules drive the four LED substrates, the dimming driving modules are respectively arranged on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip and are used for adjusting input currents on the four red primary color LED chips, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip and are connected with a single chip microcomputer and an external multi-path independently adjustable constant current source, the multi-path independently adjustable constant current source supplies independent currents to the four LEDs, the single chip microcomputer is STM32 in model, and the data end of the single chip microcomputer is connected with a control module, a display module or a wireless data transceiver module, the control module can be a keyboard or a digital key input device, the display module is a display screen, the wireless data transceiver module comprises a WIFi module and a GPRS data transmission module, and the wireless data transceiver module is used for transmitting data with an external PC or a mobile device;
the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are respectively arranged on the four integrating spheres, a radiance meter for monitoring the parameters of unmixed light splitting beams or an optical fiber spectrometer for monitoring the luminosity and the chromaticity parameter information of the light splitting beams are arranged at the light outlets of the four integrating spheres, a reflecting mixing device and a light softening plate are arranged below the light outlets of the four integrating spheres, a radiance meter for measuring the parameters of the mixed light beams or a fiber spectrometer for monitoring the parameter information of the luminosity and the chromaticity of the total tube bundle is arranged below the light softening plate, meanwhile, distributed temperature sensors are arranged on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip, the distributed temperature sensor feeds the monitored temperature information on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip back to the singlechip in real time;
SS002, determining, respectively adjusting the current of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip through a dimming driving module by a variable control method, then respectively adjusting the duty ratios of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip under various wavelengths and outputting PEM waves, fully mixing the four tube bundles in a reflecting and mixing device after the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip work in a set state, and finally mixing and outputting through a light softening plate, and calculating all the proportioning schemes of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip by an exhaustion method;
the singlechip is used for reading potential information of the four dimming driving modules, luminosity and chromaticity parameters of the split beams and luminosity and chromaticity parameters of the mixed total light beams in each color matching scheme in real time in the scheme exhaustion process;
the distributed temperature sensor records temperature data of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip at corresponding positions in the variable changing process and feeds the temperature data back to the single chip microcomputer;
SS003, parameter establishment, real-time corresponding recording of luminosity and chromaticity parameters of the split beams in all the proportioning schemes, corresponding luminosity and chromaticity parameters of the corresponding total beams, corresponding temperature information and corresponding current information, and storing the real-time corresponding recording in a data storage unit, wherein the data storage unit establishes a coordinate system, a relational expression, a power corresponding table, a temperature corresponding table or a simulation model according to the data;
SS004, optimizing and screening light distribution schemes, selecting a certain spectrum value as a data comparison reference value, if the actual matching schemes corresponding to the spectrum value are multiple, performing data comparison on the actual luminosity, chromaticity parameters, temperature and power parameters in each color matching scheme under the spectrum value and the luminosity, chromaticity parameters, temperature and power parameters under a standard reference mode, calculating parameter difference values, selecting the color matching scheme with smaller difference values as an optimal scheme, when the difference values are calculated, taking the luminosity, chromaticity parameters and current or power parameter values as priority values, selecting all the optimal matching schemes in a fitting spectrum range value by using an exhaustion method, sequencing the optimal matching schemes as priority values on a data storage unit, and storing other non-optimal matching schemes as candidate data;
SS005, scheme setting, external PC or mobile terminal set the spectrum value to the apparatus through the wireless data transceiver module or control mode, the optimal scheme under the spectrum value is displayed in the external PC or mobile terminal as the optimal recommended scheme, other schemes are displayed under the recommended scheme as the personalized scheme, the external PC or terminal can shield or call out the personalized scheme through the relevant setting;
SS006, adjust luminance, when the device is through wireless data transceiver module or the control mode adjustment actual illumination luminance of light source under certain color scheme to external PC or mobile terminal, only need the same proportion reduce the luminous power or the current value of four kinds of colour LED can.
Furthermore, the optical fiber spectrometer for monitoring the luminosity and the chromaticity parameter information of the split beams and the optical fiber spectrometer for monitoring the luminosity and the chromaticity parameter information of the main tube bundle are electrically connected with the single chip microcomputer.
Further, the photometric and colourmetric parameters include colour rendering index, light power, luminous flux, light wavelength, colour coordinates, colour temperature.
Further, the reflecting and mixing device comprises a reflecting plate and a light guide plate; the reflector and the light guide plate are used for carrying out light homogenizing and mixing treatment on tube bundles emitted by the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip in the SS001 step, and the specifications of four integrating spheres in the SS001 step are the same; the peak wavelength and half-wave width parameters in the SS001 step are different.
Furthermore, the multichannel independent adjustable constant current source comprises a processor, a multilevel conversion circuit, a multichannel DAC circuit and a forward V-I conversion circuit, wherein the processor is connected with the multilevel conversion circuit, the multilevel conversion circuit is connected with the multichannel DAC circuit, and the multichannel DAC circuit is connected with the forward V-I conversion circuit.
Furthermore, a dimming system is arranged in the single chip microcomputer; the dimming system comprises a microprocessor and a USB interface circuit; the microprocessor is electrically connected with the USB interface circuit; the USB interface circuit is respectively connected with the dimming driving module and the wireless data transceiving module.
Further, the control module or the wireless data transceiver module is used for sending and setting spectral parameters and setting brightness parameters to the device.
In the description herein, references to the description of "one embodiment," "an example," or "a specific example" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A dimming method of a multispectral LED is characterized by comprising the following steps:
SS001, presetting, preparing a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, determining peak wavelengths and half-wave width parameters of the four, driving the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip by corresponding dimming driving modules, mounting the dimming driving modules on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip, connecting the four dimming driving modules with a single chip microcomputer and an external multi-path independently adjustable constant current source, and connecting a data end of the single chip microcomputer with a control module, a display module or a wireless data transceiver module; the LED light source comprises a red primary color LED chip, a green primary color LED chip, a blue primary color LED chip and a yellow primary color LED chip, wherein the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip are respectively arranged on four integrating spheres, radiance meters for monitoring unmixed split beam parameters or optical fiber spectrometers for monitoring split beam luminosity and chromaticity parameter information are arranged at light outlets of the four integrating spheres, a reflective mixing device and a light softening plate are arranged below the light outlets of the four integrating spheres, the radiance meters for measuring mixed beam parameters or the optical fiber spectrometers for monitoring total beam luminosity and chromaticity parameter information are arranged below the light softening plate, meanwhile, distributed temperature sensors are respectively arranged on the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip, and feed the monitored temperature information back to a single chip in real time;
SS002, determination, namely respectively adjusting the current of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip through a dimming driving module by a control variable method, then respectively adjusting the duty ratios of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip under various wavelengths and outputting PEM waves, fully mixing the four light beams in a reflecting and mixing device after the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip work in a set state, and finally mixing and outputting the light beams through a light softening plate, and calculating all the proportioning schemes of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip by an exhaustion method;
the singlechip is used for reading potential information of the four dimming driving modules, luminosity and chromaticity parameters of the split beams and luminosity and chromaticity parameters of the mixed total light beams in each color matching scheme in real time in the scheme exhaustion process;
the distributed temperature sensor records temperature data of the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip at corresponding positions in the variable changing process and feeds the temperature data back to the single chip microcomputer;
SS003, parameter establishment, namely performing real-time corresponding recording on luminosity and chromaticity parameters of the split beams in all the proportioning schemes, corresponding luminosity and chromaticity parameters of the corresponding total beams, corresponding temperature information and corresponding current information, and storing the real-time corresponding recording in a data storage unit, wherein the data storage unit establishes a coordinate system, a relational expression, a power corresponding table, a temperature corresponding table or a simulation model according to the data;
SS004, optimizing light distribution schemes, namely selecting a certain spectrum value as a data comparison reference value, if the actual matching schemes corresponding to the spectrum value are multiple, performing data comparison on the actual luminosity, chromaticity parameters, temperature and power parameters in each color matching scheme under the spectrum value and the luminosity, chromaticity parameters, temperature and power parameters under a standard reference mode, calculating parameter difference values, selecting the color matching scheme with a small difference value as an optimal scheme, when the difference values are calculated, taking the luminosity, chromaticity parameters and current or power parameter values as priority values, selecting all the optimal matching schemes in a fitting spectrum range value by using an exhaustion method, sequencing the optimal matching schemes as priority values on a data storage unit, and storing other non-optimal matching schemes as candidate data;
SS005, scheme setting, when the external PC or the mobile terminal sets the spectrum value for the device through the wireless data transceiver module or the control mode, the optimal scheme under the spectrum value is displayed on the external PC or the mobile terminal as the optimal recommendation scheme, other schemes are displayed below the recommendation scheme as the personalized scheme, and the external PC or the terminal can shield or call out the personalized scheme through related setting;
SS006, adjust luminance, when the device is through wireless data transceiver module or the control mode actual illumination luminance of light source under certain color scheme of external PC or mobile terminal regulation device, only need with the proportion reduce the luminous power or the current value of four kinds of colour LED can.
2. The method of claim 1, wherein the fiber optic spectrometer for monitoring the luminosity and chromaticity parameters of the split light beam and the fiber optic spectrometer for monitoring the luminosity and chromaticity parameters of the total light beam are electrically connected to the single chip.
3. The method of claim 1, wherein said photometric and colourmetric parameters include color rendering index, luminous power, luminous flux, light wavelength, color coordinates, color temperature.
4. The method of claim 1, wherein the reflective mixing device comprises a reflector and a light guide plate; the light reflecting plate and the light guide plate carry out light homogenizing and mixing treatment on light beams emitted by the red primary color LED chip, the green primary color LED chip, the blue primary color LED chip and the yellow primary color LED chip in the SS001 step.
5. The method according to claim 1, wherein four integrating spheres in the SS001 step have the same size; the peak wavelength and the half-wave width parameters in the SS001 step are different.
6. The method of claim 1 wherein said plurality of independently adjustable constant current sources comprises a processor, a multilevel conversion circuit, a multi-channel DAC circuit, and a forward V-I conversion circuit, said processor coupled to said multilevel conversion circuit, said multi-channel DAC circuit coupled to said multi-channel DAC circuit, and said multi-channel DAC circuit coupled to said forward V-I conversion circuit.
7. The method according to claim 1, wherein a dimming system is built in the single chip microcomputer; the dimming system comprises a microprocessor and a USB interface circuit; the microprocessor is electrically connected with the USB interface circuit; the USB interface circuit is respectively connected with the dimming driving module and the wireless data transceiving module.
8. The method of claim 1, wherein the control module or the wireless data transceiver module is configured to send and set spectral parameters and set brightness parameters to the device.
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