Hybrid light source control method, device, lighting equipment and storage medium

Abstract

The present application provides a method, device, lighting equipment and storage medium for regulating a mixed light source. The method for regulating a mixed light source is used to regulate a main controller of the mixed light source, and the mixed light source includes: a cold light source, a warm light source, a red light source, a green light source and a blue light source; the method for regulating a mixed light source includes: obtaining target color temperature file information; filtering out target luminous flux data from preset luminous flux data according to the target color temperature file information and a preset color temperature mapping relationship; performing duty cycle calculation on the target luminous flux data through a preset duty cycle model to obtain duty cycle adjustment data; outputting the duty cycle adjustment data to the mixed light source to regulate the luminous states of the cold light source, warm light source, red light source, green light source and blue light source to obtain target mixed light. By mixing cold light, warm light, red light, green light and blue light, the color temperature range of the mixed light is broadened, and the color rendering index of the mixed light is improved, so that the mixed light has higher color rendering.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a method and device for controlling a hybrid light source, a lighting device, and a storage medium. Background Art

[0002] In the related art, lighting equipment uses a method of mixing warm light and cold light to obtain mixed white light, but the mixed white light obtained in this way has a narrow color temperature range and poor color rendering. Summary of the Invention

[0003] The main purpose of the embodiments of the present application is to propose a method, device, lighting equipment and storage medium for controlling a mixed light source, which mixes cold light, warm light, red light, green light and blue light to broaden the color temperature range of the mixed light and improve the color rendering index of the mixed light, so that the mixed light has higher color rendering.

[0004] To achieve the above objectives, a first aspect of an embodiment of the present application provides a method for controlling a hybrid light source, wherein the method is used to adjust a main controller of the hybrid light source, wherein the hybrid light source includes: a cold light source, a warm light source, a red light source, a green light source, and a blue light source; and the method for controlling the hybrid light source includes:

[0005] Get the target color temperature information;

[0006] Filtering target luminous flux data from preset luminous flux data according to the target color temperature file information and a preset color temperature mapping relationship;

[0007] Calculating the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data;

[0008] The duty cycle adjustment data is output to the mixed light source to adjust the luminous states of the cold light source, the warm light source, the red light source, the green light source and the blue light source to obtain target mixed light.

[0009] In some embodiments, before the step of obtaining the target color temperature information, the method further includes:

[0010] Constructing the color temperature mapping relationship specifically includes:

[0011] Obtaining light source parameters of each light source in the mixed light source; wherein the light source parameters include: absolute spectrum information, luminous flux value and maximum luminous flux value;

[0012] constructing a mixed spectrum according to the absolute spectrum information, the luminous flux value, and the maximum luminous flux value to obtain a mixed spectrum model;

[0013] Constructing a color temperature model according to the mixed spectrum model to obtain a mixed color temperature model;

[0014] Calculating luminous flux according to the preset color temperature level information and the mixed color temperature model to obtain a plurality of candidate luminous flux data;

[0015] Obtaining a mixed color rendering index corresponding to each candidate luminous flux data, and screening selected luminous flux data from the candidate luminous flux data according to the mixed color rendering index;

[0016] The selected luminous flux data and the preset color temperature gear information are mapped to obtain the color temperature mapping relationship.

[0017] In some embodiments, the step of constructing a mixed spectrum based on the absolute spectrum information, the luminous flux value, and the maximum luminous flux value to obtain a mixed spectrum model includes:

[0018] Calculating a ratio between the luminous flux value and the maximum luminous flux value to obtain a spectral model parameter of each light source;

[0019] constructing a model based on the spectral model parameters and the absolute spectral information to obtain a light source spectral model for each light source;

[0020] Model integration is performed according to each of the light source spectrum models to obtain the mixed spectrum model.

[0021] In some embodiments, the step of constructing a color temperature model based on the mixed spectrum model to obtain a mixed color temperature model includes:

[0022] Calculating tristimulus values ​​of the mixed light source according to the mixed spectrum model and preset standard chromaticity tristimulus values ​​to obtain mixed tristimulus values;

[0023] Calculating the chromaticity coordinates of the mixed light source according to the mixed tristimulus values ​​and a preset standard chromaticity model to obtain mixed chromaticity coordinate information;

[0024] A color temperature model is constructed according to the mixed chromaticity coordinate information and a preset standard color temperature model to obtain the mixed color temperature model.

[0025] In some embodiments, the step of obtaining a mixed color rendering index corresponding to each candidate luminous flux data and selecting selected luminous flux data from the candidate luminous flux data according to the mixed color rendering index includes:

[0026] Calculating the color difference of the mixed light source corresponding to each candidate luminous flux data by a colorimetric method to obtain a plurality of mixed color difference data;

[0027] Calculating the color rendering index of the mixed light source according to each mixed color difference data to obtain a plurality of mixed color rendering index data;

[0028] Screening the mixed display index data to obtain maximum mixed display index data;

[0029] The candidate luminous flux data is screened according to the maximum hybrid display index data to obtain the selected luminous flux data.

[0030] In some embodiments, before the step of obtaining the target color temperature information, the method further includes:

[0031] Constructing the duty cycle model specifically includes:

[0032] Calculating light source duty cycle data of each light source according to the luminous flux value of each light source in the mixed light source;

[0033] Normalizing the luminous flux value to obtain normalized luminous flux data;

[0034] The duty cycle model is constructed using the normalized luminous flux data as a model variable and the light source duty cycle data as a model parameter.

[0035] In some embodiments, the step of calculating the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data includes:

[0036] Inputting the target luminous flux data into the duty cycle model to perform luminous flux matching processing, so as to filter out selected luminous flux data from the normalized luminous flux data;

[0037] The duty cycle is calculated for the selected luminous flux data according to the duty cycle model to obtain the duty cycle adjustment data.

[0038] To achieve the above-mentioned objectives, the second aspect of the present application provides a control device for a mixed light source, wherein the control device for the mixed light source is used to adjust a main controller of the mixed light source, wherein the mixed light source includes: a cold light source, a warm light source, a red light source, a green light source, and a blue light source; the control device for the mixed light source includes:

[0039] An information acquisition module is used to obtain target color temperature information;

[0040] A data screening module, configured to screen target luminous flux data from preset luminous flux data according to the target color temperature file information and a preset color temperature mapping relationship;

[0041] a data calculation module, configured to calculate the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data;

[0042] The data output module is used to output the duty cycle adjustment data to the mixed light source to adjust the luminous states of the cold light source, warm light source, red light source, green light source and blue light source to obtain target mixed light.

[0043] To achieve the above objectives, the third aspect of the present application provides a lighting device, comprising:

[0044] at least one mixed light source;

[0045] at least one master controller;

[0046] at least one memory;

[0047] at least one processor;

[0048] at least one program;

[0049] The program is stored in the memory, and the processor executes at least one of the programs to implement:

[0050] As described in the first aspect above.

[0051] To achieve the above-mentioned object, the fourth aspect of the present application provides a storage medium, which is a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute:

[0052] As described in the first aspect above.

[0053] The hybrid light source control method, device, lighting device, and storage medium proposed in the embodiments of this application mix cold light, warm light, red light, green light, and blue light to broaden the color temperature range of the mixed light and improve the color rendering index of the mixed light, resulting in a higher color rendering index. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is a flow chart of a method for controlling a hybrid light source provided by an embodiment of the present application;

[0055] Figure 2 This is a flow chart of a method for controlling a hybrid light source provided by another embodiment of the present application;

[0056] Figure 3 yes Figure 2 The flowchart of one embodiment of step S202 is shown;

[0057] Figure 4 yes Figure 2 The flowchart of one embodiment of step S203 is shown;

[0058] Figure 5 yes Figure 2The flowchart of step S205 is shown as an embodiment;

[0059] Figure 6 This is a flow chart of a method for controlling a hybrid light source provided by another embodiment of the present application;

[0060] Figure 7 yes Figure 1 The flowchart of one embodiment of step S103 is shown;

[0061] Figure 8 is a luminous spectrum diagram of each light source in a mixed light source according to an embodiment of the present application;

[0062] Figure 9 This is a schematic diagram of a cold light trend line according to an embodiment of the present application;

[0063] Figure 10 This is a schematic diagram of a warm light trend line according to an embodiment of the present application;

[0064] Figure 11 This is a schematic diagram of a red light trend line according to an embodiment of the present application;

[0065] Figure 12 This is a schematic diagram of a green light trend line according to an embodiment of the present application;

[0066] Figure 13 This is a schematic diagram of a blue light trend line according to an embodiment of the present application;

[0067] Figure 14 This is a module diagram of a control device for a hybrid light source provided in an embodiment of the present application. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0069] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0071] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present disclosure.

[0072] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0073] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0074] The control method of the mixed light source of the embodiment of the present application can be applied to lighting equipment. In the related art, lighting equipment uses warm light and cold light to mix to obtain mixed white light, but the mixed white light obtained in this way has a narrow color temperature range and poor color rendering.

[0075] Based on this, the present application proposes a method, device, lighting equipment and storage medium for controlling a mixed light source, which mixes cold light, warm light, red light, green light and blue light to broaden the color temperature range of the mixed light and improve the color rendering index of the mixed light, so that the mixed light has higher color rendering.

[0076] See also Figure 1 The control method of the hybrid light source of the embodiment of the present application is used to adjust the main controller of the hybrid light source, the hybrid light source includes: a cold light source, a warm light source, a red light source, a green light source and a blue light source; the control method of the hybrid light source includes but is not limited to steps S101 to S104:

[0077] Step S101, obtaining target color temperature information;

[0078] Step S102, filtering out target luminous flux data from preset luminous flux data according to target color temperature file information and a preset color temperature mapping relationship;

[0079] Step S103, calculating the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data;

[0080] Step S104 : outputting the duty cycle adjustment data to the mixed light source to adjust the luminous states of the cold light source, the warm light source, the red light source, the green light source, and the blue light source to obtain target mixed light.

[0081] In steps S101 to S104 shown in the embodiment of the present application, a target luminous flux is selected based on the target color temperature level and a preset mapping relationship, and the duty cycle adjustment data of the mixed light source is calculated using the target luminous flux data. The luminous state of each light source in the mixed light source is controlled according to the duty cycle adjustment data, so that each light source emits a light wave with a corresponding duty cycle. The light waves of each light source are mixed to obtain the target mixed light that meets the requirements. By mixing cold light, warm light, red light, green light, and blue light, the color temperature range of the mixed light is broadened and can be applied to a wider range of scenarios. In addition, mixing light using the method of the embodiment of the present application can improve the color rendering index of the mixed light, so that the mixed light has higher color rendering properties.

[0082] In step S101 of some embodiments, the target color temperature file is color temperature information determined according to actual requirements of the target mixed light, which represents the light color components in the target mixed light.

[0083] In step S102 of some embodiments, the preset color temperature mapping relationship is a correspondence between the luminous flux of each light source in the mixed light source and the color temperature of the mixed light.

[0084] In step S103 of some embodiments, a preset duty cycle model is used to process the target luminous flux data to obtain duty cycle adjustment data. The duty cycle adjustment data includes the monochromatic duty cycle data corresponding to each light source in the mixed light source, and is used to control each light source to emit a light wave with a corresponding duty cycle.

[0085] In step S104 of some embodiments, the mixed light source includes a main controller that controls the luminous state of each monochromatic light source. The main controller processes the duty cycle adjustment data after receiving it, and sends a control instruction to each light source according to the monochromatic duty cycle data of each light source in the corresponding mixed light source contained in the duty cycle adjustment data, so that each light source emits a light wave with a corresponding duty cycle. The light waves of each light source are mixed to obtain the target mixed light that meets the requirements.

[0086] In some embodiments, see Figure 2 Before step S101, the method for controlling the mixed light source further includes but is not limited to the steps of:

[0087] Constructing a color temperature mapping relationship specifically includes but is not limited to steps S201 to S206:

[0088] Step S201, obtaining light source parameters of each light source in the mixed light source; wherein the light source parameters include: absolute spectrum information, luminous flux value and maximum luminous flux value;

[0089] Step S202, constructing a mixed spectrum based on the absolute spectrum information, the luminous flux value, and the maximum luminous flux value to obtain a mixed spectrum model;

[0090] Step S203, constructing a color temperature model based on the mixed spectrum model to obtain a mixed color temperature model;

[0091] Step S204: Calculate luminous flux based on the preset color temperature level information and the mixed color temperature model to obtain multiple candidate luminous flux data.

[0092] Step S205, obtaining a mixed color rendering index corresponding to each candidate luminous flux data, and screening selected luminous flux data from the candidate luminous flux data according to the mixed color rendering index;

[0093] Step S206 : Mapping the selected luminous flux data and the preset color temperature level information to obtain a color temperature mapping relationship.

[0094] In steps S201 to S206 shown in the embodiment of the present application, a color temperature mapping relationship is established based on the absolute spectral information, luminous flux value, and maximum luminous flux value of each light source, so that the luminous flux information of each monochromatic light corresponds to the color temperature information of the mixed light, and the optical information is converted into digital information for easy storage and convenient call to control the working state of the mixed light source.

[0095] In step S201 of some embodiments, the spectrum of each light source is measured using an integrating sphere to obtain the absolute spectrum information of each light source. The luminous flux corresponding to each light source's duty cycle varying from 0 to 1 is also measured using the integrating sphere to obtain the corresponding luminous flux value and maximum luminous flux value of each light source. In other embodiments, a photometer or spectrometer is used to measure the light source parameters of each light source.

[0096] In step S202 of some embodiments, a mixed spectrum model is constructed using the absolute spectrum information, luminous flux value, and maximum luminous flux value of each light source to ensure the color temperature of the mixed light.

[0097] In step S203 of some embodiments, the mixed color temperature model is used to characterize the color temperature of the mixed light.

[0098] In step S204 of some embodiments, the preset color temperature files are obtained by dividing the color temperature range of the mixed light into certain color temperature intervals. For example, the color temperature range of the mixed light from 2200K to 15000K is divided into color temperature intervals of 100K to obtain the corresponding color temperature files. It should be noted that the preset color temperature files can be customized as needed and are not specifically limited in this embodiment of the present application.

[0099] In step S205 of some embodiments, the color rendering index characterizes the light source's ability to render the color of an object (i.e., color rendering). The higher the color rendering index, the better the color rendering of the light source. Mixed light of the same color temperature can be obtained by mixing monochromatic light from each light source with different luminous flux combinations. However, the color rendering index of the mixed light obtained by mixing monochromatic light from each light source with different luminous flux combinations is generally different. By measuring the mixed color rendering index of the mixed light, candidate luminous flux data is screened to obtain selected luminous flux data.

[0100] In step S206 of some embodiments, a mapping is established based on the correspondence between the selected luminous flux data and the preset color temperature levels to obtain a color temperature mapping relationship.

[0101] In some embodiments, see Figure 3 Step S202 includes but is not limited to steps S301 to S303:

[0102] Step S301, performing ratio calculation based on the luminous flux value and the maximum luminous flux value to obtain the spectrum model parameters of each light source;

[0103] Step S302: constructing a model based on the spectrum model parameters and the absolute spectrum information to obtain a light source spectrum model for each light source;

[0104] Step S303 : performing model integration according to each light source spectrum model to obtain a mixed spectrum model.

[0105] In steps S301 to S303 shown in the embodiment of the present application, a spectral model of a single light source is first constructed using the absolute spectral information, luminous flux value, and maximum luminous flux value of each light source, and then the model is integrated to obtain a mixed spectral model to more accurately characterize the color temperature of the mixed light.

[0106] In step S301 of some embodiments, the spectral model parameters characterize the spectral characteristics of each light source at different luminous fluxes.

[0107] In step S302 and step S303 of some embodiments, a spectral model of a single light source is constructed according to the spectral model parameters, and then the models are integrated to obtain a mixed spectral model.

[0108] In an exemplary embodiment, the expression of the constructed mixed spectrum model is:

[0109]

[0110] In formula (1), S(λ) represents the mixed spectrum model, Φ r Indicates the luminous flux value of the red light source, Φ rmax Indicates the maximum luminous flux value of the red light source, S r (λ) represents the absolute spectrum information of the red light source, Φ g Indicates the luminous flux value of the green light source, Φ gmax Indicates the maximum luminous flux value of the green light source, S g (λ) represents the absolute spectrum information of the green light source, Φ b Indicates the luminous flux value of the blue light source, Φ bmax Indicates the maximum luminous flux value of the blue light source, S b (λ) represents the absolute spectrum information of the blue light source, Φ c Indicates the luminous flux value of the cold light source, Φ cmax Indicates the maximum luminous flux value of the cold light source, S c (λ) represents the absolute spectrum information of the cold light source, Φ w Indicates the luminous flux value of the warm light source, Φ wmax Indicates the maximum luminous flux value of the warm light source, S w (λ) represents the absolute spectrum information of the warm light source.

[0111] In some embodiments, see Figure 4 Step S203 includes but is not limited to steps S401 to S403:

[0112] Step S401, calculating the tristimulus values ​​of the mixed light source according to the mixed spectrum model and preset standard chromaticity tristimulus values ​​to obtain mixed tristimulus values;

[0113] Step S402, calculating the chromaticity coordinates of the mixed light source according to the mixed tristimulus values ​​and a preset standard chromaticity model to obtain mixed chromaticity coordinate information;

[0114] Step S403 : constructing a color temperature model according to the mixed chromaticity coordinate information and a preset standard color temperature model to obtain a mixed color temperature model.

[0115] In steps S401 to S403 shown in the embodiment of the present application, a mixed color temperature model is constructed according to the mixed spectrum model, so that the color temperature information of the mixed light can be obtained.

[0116] In step S401 of some embodiments, the expression for obtaining the mixed tristimulus value is:

[0117]

[0118] In formula (2), X, Y, and Z are mixed tristimulus values, and S(λ) represents the mixed spectrum model. It is the standard chromaticity tristimulus value under the CIE1931 standard colorimetry system.

[0119] In step S402 of some embodiments, the expression for obtaining the mixed chromaticity coordinates is:

[0120]

[0121] In formula (3), X, Y, and Z are the mixed tristimulus values, and x and y are the mixed chromaticity coordinates of the mixed light under the CIE1931 standard colorimetry system.

[0122] In step S403 of some embodiments, the expression of the mixed color temperature model is:

[0123]

[0124] In formula (4), x and y are the mixed chromaticity coordinates of the mixed light under the CIE1931 standard colorimetric system, T c Represents a mixed color temperature model.

[0125] In some embodiments, see Figure 5 Step S205 includes but is not limited to steps S501 to S504:

[0126] Step S501, calculating the color difference of the mixed light source corresponding to each candidate luminous flux data by colorimetry to obtain a plurality of mixed color difference data;

[0127] Step S502, calculating the color rendering index of the mixed light source according to each mixed color difference data to obtain a plurality of mixed color rendering index data;

[0128] Step S503, filtering the mixed display index data to obtain maximum mixed display index data;

[0129] Step S504 , screening the candidate luminous flux data according to the maximum hybrid display index data to obtain selected luminous flux data.

[0130] In steps S501 to S504 shown in the embodiment of the present application, the candidate luminous flux data corresponding to the maximum color rendering index of the mixed light of each color temperature level is screened out by measuring the mixed color rendering index of the mixed light, and the selected luminous flux data is obtained, so that the mixed light corresponding to each color temperature level has better color rendering.

[0131] In step S501 of some embodiments, according to the colorimetry method developed by CIE (French: Commission Internationale de l'Eclairage, International Commission on Illumination), a mixed light source is used as the light source to be measured, and the color difference of 8 test color samples is measured in comparison with the reference light source to obtain mixed color difference data.

[0132] In step S502 of some embodiments, the calculation expression of the mixed display index data is:

[0133]

[0134] In formula (5), R a Indicates mixed color index data, ΔE i Represents mixed color difference data.

[0135] In step S503 of some embodiments, the maximum value of the mixed CRI data corresponding to each color temperature level is screened out to obtain the maximum mixed CRI data.

[0136] In step S504 of some embodiments, candidate luminous flux data corresponding to the maximum color rendering index of mixed light of each color temperature level is screened out to obtain selected luminous flux data.

[0137] In some embodiments, see Figure 6 Before step S101, the method for controlling the mixed light source further includes:

[0138] Constructing a duty cycle model specifically includes but is not limited to steps S601 to S603:

[0139] Step S601, calculating the light source duty cycle data of each light source in the mixed light source according to the luminous flux value of each light source;

[0140] Step S602, normalizing the luminous flux value to obtain normalized luminous flux data;

[0141] In step S603 , a duty cycle model is constructed using the normalized luminous flux data as a model variable and the light source duty cycle data as a model parameter.

[0142] In steps S601 to S603 shown in the embodiment of the present application, a duty cycle model is constructed based on the light source duty cycle data and the luminous flux value of each light source to facilitate subsequent rapid and efficient processing of the target luminous flux data.

[0143] In step S601 of some embodiments, the light wave frequency of each light source in the mixed light source depends on the pulse waveform driving the light emitting device to work, and the duty cycle data of the pulse waveform is calculated according to the light wave frequency to obtain the light source duty cycle data.

[0144] In some embodiments, in steps S602 and S603, after the luminous flux values ​​are normalized to obtain normalized luminous flux data, a mapping relationship model is constructed based on the normalized luminous flux data and the light source duty cycle data to obtain a duty cycle model. In other embodiments, a chart is constructed with the normalized luminous flux data as the abscissa and the light source duty cycle data as the ordinate to represent the correspondence between the normalized luminous flux data and the light source duty cycle data.

[0145] In some embodiments, see Figure 7 Step S103 includes but is not limited to steps S701 and S702:

[0146] Step S701: inputting target luminous flux data into a duty cycle model to perform luminous flux matching processing, so as to filter out selected luminous flux data from the normalized luminous flux data;

[0147] Step S702 , performing duty cycle calculation on the selected luminous flux data according to the duty cycle model to obtain duty cycle adjustment data.

[0148] In steps S701 to S702 shown in the embodiment of the present application, the target luminous flux data is processed through the duty cycle model, so that the duty cycle adjustment data can be obtained quickly and efficiently.

[0149] In step S701 of some embodiments, the target luminous flux data is matched according to the correspondence between the normalized luminous flux data and the luminous flux value before normalization, and the selected luminous flux data is screened out.

[0150] In step S702 of some embodiments, the duty cycle calculation process is performed on the selected luminous flux data in combination with the light source duty cycle data to obtain accurate duty cycle adjustment data.

[0151] In an exemplary embodiment, the color temperature range of the cold light source is 9000K to 10000K, the color temperature range of the warm light source is 2350K to 2450K, the wavelength range of the red light source is 620nm to 630nm, the wavelength range of the green light source is 525nm to 535nm, and the wavelength range of the blue light source is 455nm to 465nm. Figure 8 As shown, Figure 8It is a luminous spectrum diagram of each light source in the mixed light source. In the figure, C represents a cold light source, W represents a warm light source, R represents a red light source, G represents a green light source, and B represents a blue light source. The warm light spectrum lacks a band in which the cold light spectrum accounts for a large proportion, and the cold light spectrum lacks a band in which the warm light spectrum accounts for a large proportion. The mixed light corresponding to each color temperature level in the embodiment of the present application is mainly composed of cold light and warm light. By adding the components of red light, green light and blue light, the color temperature range of the mixed light is broadened, and the mixed light has a higher color rendering index of more than 95. The normalized luminous flux data is used as the horizontal coordinate and the light source duty cycle data is used as the vertical coordinate to construct the charts respectively, and the coordinate points in the figure are fitted to obtain the following: Figure 9 The cold light trend line shown, Figure 10 The warm light trend line shown, Figure 11 The red trend line shown, Figure 12 The green trend line shown and Figure 13 The blue light trend line shown has a fitting degree greater than 0.9996 for each light source, indicating a very high reliability of the trend line. In this embodiment, the cold light trend line is expressed as:

[0152]

[0153] In formula (6), D c represents the cold light trend line, Φ c Indicates the luminous flux value of the cold light source, Φ cmax Indicates the maximum luminous flux value of the cold light source. In this embodiment, Φ cmax It is 2274lm.

[0154] The expression of the warm light trend line is:

[0155]

[0156] In formula (7), D w Indicates the warm light trend line, Φ w Indicates the luminous flux value of the cold light source, Φ wmax Indicates the maximum luminous flux value of the cold light source. In this embodiment, Φ wmax It is 1929lm.

[0157] The expression of the red light trend line is:

[0158]

[0159] In formula (8), D r Indicates the red light trend line, Φ r Indicates the luminous flux value of the red light source, Φ rmax Indicates the maximum luminous flux value of the red light source. In this embodiment, Φ rmax It is 628.9lm.

[0160] The expression of the green trend line is:

[0161]

[0162] In formula (9), D g Indicates the green trend line, Φ g Indicates the luminous flux value of the green light source, Φ gmax Indicates the maximum luminous flux value of the green light source. In this embodiment, Φ gmax It is 1705lm.

[0163] The expression of the blue light trend line is:

[0164]

[0165] In formula (10), D b represents the blue light trend line, Φ b Indicates the luminous flux value of the blue light source, Φ bmax Indicates the maximum luminous flux value of the blue light source. In this embodiment, Φ bmax It is 300.6lm.

[0166] Similarly, a chart can be constructed with luminous flux as the horizontal axis and light source power as the vertical axis to represent the relationship between the luminous flux and the power of the light source. The mixed light obtained by the control method of the hybrid light source according to the embodiment of the present application has a small color deviation, with the average color deviation of the mixed light corresponding to all color temperature settings being approximately 0.0004.

[0167] To achieve this, please refer to Figure 14 The present application also proposes a hybrid light source control device that can implement the above hybrid light source control method. The hybrid light source control device is used to adjust the main controller of the hybrid light source. The hybrid light source includes: a cold light source, a warm light source, a red light source, a green light source, and a blue light source; the hybrid light source control device includes:

[0168] An information acquisition module is used to obtain target color temperature information;

[0169] A data screening module is used to screen out target luminous flux data from preset luminous flux data according to target color temperature file information and a preset color temperature mapping relationship;

[0170] A data calculation module is used to calculate the duty cycle of the target luminous flux data through a preset duty cycle model to obtain duty cycle adjustment data;

[0171] The data output module is used to output duty cycle adjustment data to the mixed light source to adjust the luminous states of the cold light source, warm light source, red light source, green light source and blue light source to obtain target mixed light.

[0172] The specific implementation of the control device for the mixed light source is substantially the same as the specific embodiment of the control method for the mixed light source described above, and will not be described in detail herein.

[0173] To achieve the above objectives, the third aspect of the present application provides a lighting device, comprising:

[0174] at least one mixed light source;

[0175] at least one master controller;

[0176] at least one memory;

[0177] at least one processor;

[0178] at least one program;

[0179] The program is stored in the memory, and the processor executes at least one program to implement:

[0180] Such as the control method of the hybrid light source in the above embodiment.

[0181] To achieve the above-mentioned object, the fourth aspect of the present application provides a storage medium, which is a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute:

[0182] Such as the control method of the hybrid light source in the above embodiment.

[0183] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0184] The embodiments described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0185] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0186] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0187] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0188] It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in sequences other than those illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0189] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0190] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0191] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0192] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0193] The embodiments of the present application are described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A method for controlling a hybrid light source, characterized in that: The control method of the mixed light source is used to adjust the main controller of the mixed light source, and the mixed light source includes: a cold light source, a warm light source, a red light source, a green light source and a blue light source; the control method of the mixed light source includes: Get the target color temperature information; Filtering target luminous flux data from preset luminous flux data according to the target color temperature file information and a preset color temperature mapping relationship; Calculating the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data; Outputting the duty cycle adjustment data to the mixed light source to adjust the luminous states of the cold light source, the warm light source, the red light source, the green light source, and the blue light source to obtain target mixed light; Before the step of obtaining the target color temperature information, the method further includes: Constructing the color temperature mapping relationship specifically includes: Obtaining light source parameters of each light source in the mixed light source; wherein the light source parameters include: absolute spectrum information, luminous flux value, and maximum luminous flux value; constructing a mixed spectrum based on the absolute spectrum information, luminous flux value, and maximum luminous flux value to obtain a mixed spectrum model; constructing a color temperature model based on the mixed spectrum model to obtain a mixed color temperature model; performing luminous flux calculation based on preset color temperature gear information and the mixed color temperature model to obtain multiple candidate luminous flux data; obtaining a mixed color rendering index corresponding to each candidate luminous flux data, and screening selected luminous flux data from the candidate luminous flux data based on the mixed color rendering index; mapping the selected luminous flux data with the preset color temperature gear information to obtain the color temperature mapping relationship; The step of constructing a mixed spectrum according to the absolute spectrum information, the luminous flux value, and the maximum luminous flux value to obtain a mixed spectrum model includes: calculating a ratio according to the luminous flux value and the maximum luminous flux value to obtain spectrum model parameters of each light source; constructing a model according to the spectrum model parameters and the absolute spectrum information to obtain a light source spectrum model of each light source; and integrating the models according to each of the light source spectrum models to obtain the mixed spectrum model. The mixed spectrum model is expressed as: Among them, S(λ) represents the mixed spectrum model, Φ r Indicates the luminous flux value of the red light source, Φ rmax Indicates the maximum luminous flux value of the red light source, S r (λ) represents the absolute spectrum information of the red light source, Φ g Indicates the luminous flux value of the green light source, Φ gmax Indicates the maximum luminous flux value of the green light source, S g (λ) represents the absolute spectrum information of the green light source, Φ b Indicates the luminous flux value of the blue light source, Φ bmax Indicates the maximum luminous flux value of the blue light source, S b (λ) represents the absolute spectrum information of the blue light source, Φ c Indicates the luminous flux value of the cold light source, Φ cmax Indicates the maximum luminous flux value of the cold light source, S c (λ) represents the absolute spectrum information of the cold light source, Φ w Indicates the luminous flux value of the warm light source, Φ wmax Indicates the maximum luminous flux value of the warm light source, S w (λ) represents the absolute spectrum information of the warm light source.

2. The method for controlling a hybrid light source according to claim 1, wherein: The step of constructing a color temperature model according to the mixed spectrum model to obtain a mixed color temperature model includes: Calculating tristimulus values ​​of the mixed light source according to the mixed spectrum model and preset standard chromaticity tristimulus values ​​to obtain mixed tristimulus values; Calculating the chromaticity coordinates of the mixed light source according to the mixed tristimulus values ​​and a preset standard chromaticity model to obtain mixed chromaticity coordinate information; A color temperature model is constructed according to the mixed chromaticity coordinate information and a preset standard color temperature model to obtain the mixed color temperature model.

3. The method for controlling a hybrid light source according to claim 1, wherein: The step of obtaining a mixed color rendering index corresponding to each candidate luminous flux data and selecting selected luminous flux data from the candidate luminous flux data according to the mixed color rendering index comprises: Calculating the color difference of the mixed light source corresponding to each candidate luminous flux data by a colorimetric method to obtain a plurality of mixed color difference data; Calculating the color rendering index of the mixed light source according to each mixed color difference data to obtain a plurality of mixed color rendering index data; Screening the mixed display index data to obtain maximum mixed display index data; The candidate luminous flux data is screened according to the maximum hybrid display index data to obtain the selected luminous flux data.

4. The method for controlling a hybrid light source according to any one of claims 1 to 3, characterized in that: Before the step of obtaining the target color temperature information, the method further includes: Constructing the duty cycle model specifically includes: Calculating light source duty cycle data of each light source according to the luminous flux value of each light source in the mixed light source; Normalizing the luminous flux value to obtain normalized luminous flux data; The duty cycle model is constructed using the normalized luminous flux data as a model variable and the light source duty cycle data as a model parameter.

5. The method for controlling a hybrid light source according to claim 4, wherein: The step of calculating the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data includes: Inputting the target luminous flux data into the duty cycle model to perform luminous flux matching processing, so as to filter out selected luminous flux data from the normalized luminous flux data; The duty cycle is calculated for the selected luminous flux data according to the duty cycle model to obtain the duty cycle adjustment data.

6. A control device for a mixed light source, characterized in that: The control device of the mixed light source is used to adjust the main controller of the mixed light source, and the mixed light source includes: a cold light source, a warm light source, a red light source, a green light source and a blue light source; the control device of the mixed light source includes: An information acquisition module is used to obtain target color temperature information; A data screening module, configured to screen target luminous flux data from preset luminous flux data according to the target color temperature file information and a preset color temperature mapping relationship; a data calculation module, configured to calculate the duty cycle of the target luminous flux data using a preset duty cycle model to obtain duty cycle adjustment data; a data output module, configured to output the duty cycle adjustment data to the mixed light source, so as to adjust the luminous states of the cold light source, the warm light source, the red light source, the green light source, and the blue light source to obtain a target mixed light; Before the step of obtaining the target color temperature information, the method further includes: Constructing the color temperature mapping relationship specifically includes: Obtaining light source parameters of each light source in the mixed light source; wherein the light source parameters include: absolute spectrum information, luminous flux value, and maximum luminous flux value; constructing a mixed spectrum based on the absolute spectrum information, luminous flux value, and maximum luminous flux value to obtain a mixed spectrum model; constructing a color temperature model based on the mixed spectrum model to obtain a mixed color temperature model; performing luminous flux calculation based on preset color temperature gear information and the mixed color temperature model to obtain multiple candidate luminous flux data; obtaining a mixed color rendering index corresponding to each candidate luminous flux data, and screening selected luminous flux data from the candidate luminous flux data based on the mixed color rendering index; mapping the selected luminous flux data with the preset color temperature gear information to obtain the color temperature mapping relationship; The step of constructing a mixed spectrum according to the absolute spectrum information, the luminous flux value, and the maximum luminous flux value to obtain a mixed spectrum model includes: calculating a ratio according to the luminous flux value and the maximum luminous flux value to obtain spectrum model parameters of each light source; constructing a model according to the spectrum model parameters and the absolute spectrum information to obtain a light source spectrum model of each light source; and integrating the models according to each of the light source spectrum models to obtain the mixed spectrum model. The mixed spectrum model is expressed as: Among them, S(λ) represents the mixed spectrum model, Φ r Indicates the luminous flux value of the red light source, Φ rmax Indicates the maximum luminous flux value of the red light source, S r (λ) represents the absolute spectrum information of the red light source, Φ g Indicates the luminous flux value of the green light source, Φ gmax Indicates the maximum luminous flux value of the green light source, S g (λ) represents the absolute spectrum information of the green light source, Φ b Indicates the luminous flux value of the blue light source, Φ bmax Indicates the maximum luminous flux value of the blue light source, S b (λ) represents the absolute spectrum information of the blue light source, Φ c Indicates the luminous flux value of the cold light source, Φ cmax Indicates the maximum luminous flux value of the cold light source, S c (λ) represents the absolute spectrum information of the cold light source, Φ w Indicates the luminous flux value of the warm light source, Φ wmax Indicates the maximum luminous flux value of the warm light source, S w (λ) represents the absolute spectrum information of the warm light source.

7. A lighting device, characterized in that: include: at least one mixed light source; at least one master controller; at least one memory; at least one processor; at least one program; The program is stored in the memory, and the processor executes at least one of the programs to implement: The method according to any one of claims 1 to 5.

8. A storage medium, wherein the storage medium is a computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute: The method according to any one of claims 1 to 5.

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