Lighting control method, device, electronic equipment and medium

Abstract

This application discloses a lighting control method, device, electronic device, and medium, which are applied to lighting equipment equipped with RGBW four-color chip lamp beads for emitting RGBW four-color light. The lighting control method includes: obtaining a color temperature to be modulated and determining a color temperature level corresponding to the color temperature to be modulated; obtaining each standard color temperature target corresponding to the lighting equipment and a standard light mixing parameter under each standard color temperature target; generating a target light mixing parameter under the color temperature to be modulated based on the size relationship between the color temperature to be modulated and each standard color temperature target and each standard light mixing parameter; and mixing the RGBW four-color light according to a light mixing ratio calculated from the color temperature level and the target light mixing parameter to obtain a target lighting light. This application solves the technical problem of poor lighting effects in lighting equipment in the prior art.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a lighting control method, device, electronic device and medium. Background Art

[0002] With economic development, people's awareness of eye protection continues to grow. Healthy light desk lamps, eye protection lamps, and intelligent products are becoming mainstream in various places such as homes and offices. Traditional desk lamps have a low color rendering index (CRI). Some high CRI lamps only supplement the red spectrum, resulting in poor color reproduction and low fidelity when compared to objects illuminated by sunlight, resulting in poor lighting effects. Summary of the Invention

[0003] The main purpose of this application is to provide a lighting control method, device, electronic device and medium, aiming to solve the technical problem of poor lighting effect of lighting equipment in the prior art.

[0004] To achieve the above objectives, the present application provides a lighting control method, which is applied to a lighting device, wherein the lighting device is provided with RGBW four-color chip lamp beads, and the RGBW four-color chip lamp beads are used to emit RGBW four-color light. The lighting control method includes:

[0005] Obtaining a color temperature to be modulated, and determining a color temperature level corresponding to the color temperature to be modulated;

[0006] Obtaining each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold;

[0007] generating target light mixing parameters at the color temperature to be modulated based on the size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold;

[0008] The RGBW four-color light is mixed according to the color temperature level and the mixing ratio calculated by the target mixing parameter to obtain the target lighting light.

[0009] Optionally, each of the standard color temperature targets includes a first color temperature target, a second color temperature target, and a third color temperature target. The step of generating the target light mixing parameters at the color temperature to be modulated according to the size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters includes:

[0010] If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter;

[0011] If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

[0012] Optionally, the first light mixing parameters include a first color adjustment factor and a second color adjustment factor, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor.

[0013] The step of fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the first color temperature target, and the second color temperature target includes:

[0014] Calculate a first color temperature difference between the color temperature to be modulated and the first color temperature target point, and a second color temperature difference between the second color temperature target point and the color temperature to be modulated;

[0015] Compensating the first color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the third color adjustment factor and the first color adjustment factor to obtain the first target color adjustment factor;

[0016] The second color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the fourth color adjustment factor and the second color adjustment factor to obtain the second target color adjustment factor.

[0017] Optionally, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the third light mixing parameters include a fifth color adjustment factor and a sixth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor.

[0018] The step of fusing the second light mixing parameter corresponding to the second color temperature target and the third light mixing parameter corresponding to the third color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the second color temperature target, and the third color temperature target includes:

[0019] Calculate a third color temperature difference between the color temperature to be modulated and the second color temperature target point, and a fourth color temperature difference between the third color temperature target point and the color temperature to be modulated;

[0020] Compensating the third color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the fifth color adjustment factor and the third color adjustment factor to obtain the first target color adjustment factor;

[0021] The fourth tinting factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the sixth tinting factor and the fourth tinting factor to obtain the second target tinting factor.

[0022] Optionally, the lighting device is provided with a reflector cup assembly, the reflector cup assembly includes a reflector and a diffuser plate, the diffuser plate includes a main diffuser plate and a secondary diffuser plate, and after the step of mixing the RGBW four-color light according to the mixing ratio calculated according to the color temperature gear and the target light mixing parameter to obtain the target lighting light, the lighting light control method further includes:

[0023] The target lighting light is refracted by the reflector, and the refracted target lighting light is controlled to pass through the main diffuser plate and the secondary diffuser plate respectively to irradiate, wherein the main diffuser plate is used to ensure the uniformity of illumination in the main lighting area of ​​the lighting device, and the secondary diffuser plate is used to ensure the uniformity of illumination in the secondary lighting area of ​​the lighting device.

[0024] Optionally, yellow toner is provided on the diffusion plate, and the yellow toner is used to absorb blue light in the target lighting light.

[0025] Optionally, the diffusion plate is provided with polarizing prisms, and the polarizing prisms are used to refract the target lighting light to improve the illumination uniformity of the lighting device.

[0026] The present application also provides a lighting control device, which is applied to a lighting device. The lighting device is provided with RGBW four-color chip lamp beads, and the RGBW four-color chip lamp beads are used to emit RGBW four-color light. The lighting control device includes:

[0027] A first acquisition module is used to acquire a color temperature to be modulated and determine a color temperature level corresponding to the color temperature to be modulated;

[0028] a second acquisition module, configured to acquire each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is configured to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold;

[0029] a generating module, configured to generate target light mixing parameters at the color temperature to be modulated based on a size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold;

[0030] The light mixing module is used to mix the RGBW four-color light according to the color temperature level and the light mixing ratio calculated by the target light mixing parameter to obtain the target lighting light.

[0031] Optionally, each of the standard color temperature target points includes a first color temperature target point, a second color temperature target point, and a third color temperature target point, and the generating module is further configured to:

[0032] If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter;

[0033] If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

[0034] Optionally, the first light mixing parameters include a first color adjustment factor and a second color adjustment factor, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor, and the generating module is further configured to:

[0035] Calculate a first color temperature difference between the color temperature to be modulated and the first color temperature target point, and a second color temperature difference between the second color temperature target point and the color temperature to be modulated;

[0036] Compensating the first color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the third color adjustment factor and the first color adjustment factor to obtain the first target color adjustment factor;

[0037] The second color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the fourth color adjustment factor and the second color adjustment factor to obtain the second target color adjustment factor.

[0038] Optionally, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the third light mixing parameters include a fifth color adjustment factor and a sixth color adjustment factor, the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor, and the generating module is further configured to:

[0039] Calculate a third color temperature difference between the color temperature to be modulated and the second color temperature target point, and a fourth color temperature difference between the third color temperature target point and the color temperature to be modulated;

[0040] Compensating the third color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the fifth color adjustment factor and the third color adjustment factor to obtain the first target color adjustment factor;

[0041] The fourth tinting factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the sixth tinting factor and the fourth tinting factor to obtain the second target tinting factor.

[0042] Optionally, the lighting control device is further used to:

[0043] The target lighting light is refracted by the reflector, and the refracted target lighting light is controlled to pass through the main diffuser plate and the secondary diffuser plate respectively to irradiate, wherein the main diffuser plate is used to ensure the uniformity of illumination in the main lighting area of ​​the lighting device, and the secondary diffuser plate is used to ensure the uniformity of illumination in the secondary lighting area of ​​the lighting device.

[0044] Optionally, yellow toner is provided on the diffusion plate, and the yellow toner is used to absorb blue light in the target lighting light.

[0045] Optionally, the diffusion plate is provided with polarizing prisms, and the polarizing prisms are used to refract the target lighting light to improve the illumination uniformity of the lighting device.

[0046] The present application also provides an electronic device, which includes: a memory, a processor, and a program of the lighting control method stored in the memory and executable on the processor. When the program of the lighting control method is executed by the processor, the steps of the lighting control method described above can be implemented.

[0047] The present application also provides a computer-readable storage medium, on which is stored a program for implementing the lighting control method. When the program for the lighting control method is executed by a processor, the steps of the lighting control method as described above are implemented.

[0048] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned lighting control method when executed by a processor.

[0049] The present application provides a lighting control method, device, electronic device and medium, which adopts RGBW four-color chip lamp beads, and can use RGB three-color light to compensate for white (W) light, so that the spectrum of the light emitted by the lighting device is closer to the solar spectrum, and a standard color temperature target and corresponding standard mixing parameters are pre-set, wherein the standard mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target is greater than the preset display index threshold; when color temperature modulation is required, the color temperature to be modulated can be generated according to the difference between the color temperature to be modulated and the standard color temperature target. The target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold; the RGBW four-color light is mixed according to the color temperature gear and the mixing ratio calculated by the target light mixing parameters, so as to obtain a target lighting light having a display index greater than a preset display index at the color temperature to be modulated, and achieve refined light mixing at different transformed color temperatures, which can ensure that the lighting light at any color temperature is a light with a high color rendering index, thereby improving the color rendering index of the lighting device, thereby improving the lighting effect of the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0052] Figure 1 This is a flow chart of the first embodiment of the lighting control method of the present application;

[0053] Figure 2 A schematic diagram of the spectrum of white light in the lighting control method of this application;

[0054] Figure 3 A schematic diagram of the spectrum of red light in the lighting control method of this application;

[0055] Figure 4 A schematic diagram of the spectrum of green light in the lighting control method of this application;

[0056] Figure 5 A schematic diagram of the spectrum of blue light in the lighting control method of this application;

[0057] Figure 6 This is a schematic diagram of the spectrum of the lighting light after mixing the RGBW four-color light when the color temperature is 3600K in the lighting control method of this application;

[0058] Figure 7 A schematic diagram of the spectrum of the lighting light after mixing the RGBW four-color light when the color temperature is 4000K in the lighting control method of this application;

[0059] Figure 8 This is a schematic diagram of the spectrum of the lighting light after mixing the RGBW four-color light when the color temperature is 5000K in the lighting control method of this application;

[0060] Figure 9 Schematic diagram of the device structure of the hardware operating environment involved in the lighting control method in the embodiment of the present application.

[0061] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0062] To make the above-mentioned purposes, features, and advantages of the present application more clearly understood, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0063] Example 1

[0064] The present application provides a lighting control method. In the first embodiment of the lighting control method of the present application, referring to Figure 1The lighting device is provided with RGBW four-color chip lamp beads, and the RGBW four-color chip lamp beads are used to emit RGBW four-color light. The lighting control method includes:

[0065] Step S10, obtaining a color temperature to be modulated, and determining a color temperature level corresponding to the color temperature to be modulated;

[0066] Step S20, obtaining each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold;

[0067] Step S30, generating target light mixing parameters at the color temperature to be modulated based on the size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold;

[0068] Step S40 , mixing the RGBW four-color light according to the color temperature level and the mixing ratio calculated by the target light mixing parameter to obtain a target lighting light.

[0069] In this embodiment, it should be noted that the RGBW four-color chip lamp beads can emit RGBW four-color light, which includes red (R), green (G), blue (B), and white (W). In this embodiment, multiple standard color temperature targets are pre-set, and standard light mixing parameters under the standard color temperature targets are pre-determined. Red, green, blue, and white light are mixed according to the standard light mixing parameters to obtain lighting with a color rendering index greater than a preset display index threshold.

[0070] As an example, the standard color temperature targets can be set to 3600K, 4000K and 5000K respectively.

[0071] The light mixing formula corresponding to the standard light mixing parameters at 3600K is as follows:

[0072] W (white light): y = 537.99x + 212.02 R (red light): y = 516.94x + 199.03

[0073] G (green light): y = 156.89x + 56.058 B (blue light): y = 0

[0074] The light mixing formula corresponding to the standard light mixing parameters at 4000K is as follows:

[0075] W:y=537.99x+212.02R:y=387.93x+108.03

[0076] G:y=175.92x+54.039B:y=56.895x+18.058

[0077] The light mixing formula corresponding to the standard light mixing parameters at 5000K is as follows:

[0078] W:y=537.99x+212.02R:y=0

[0079] G:y=144.03x+50.985B:y=216.94x+65.034

[0080] Among them, y can be the light intensity or the mixing ratio, and x is the color temperature gear corresponding to the color temperature size. For example, 3600K can be set to gear 1, 4000K to gear 2, 5000K to gear 3, etc. The coefficient and constant term of x in the mixing formula are both the standard mixing parameters.

[0081] As an example, steps S10 to S40 include:

[0082] Obtain the color temperature to be modulated, and query the color temperature gear corresponding to the color temperature to be modulated according to the mapping relationship between the color temperature size and the gear; obtain the standard color temperature targets corresponding to the lighting device and the standard mixing parameters under each of the standard color temperature targets, wherein the standard mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target is greater than the preset display index threshold; obtain the color temperature size ranges commonly corresponding to the standard color temperature targets, and determine the target color temperature size range to which the color temperature to be modulated belongs in each of the color temperature size ranges; use the standard color temperature targets corresponding to the target color temperature size ranges as the reference color temperature targets for each modulation, and calculate the color rendering index of the lighting light according to the color temperature range. The target light mixing parameters corresponding to the color temperature to be modulated are obtained by fusing the value of the color temperature to be modulated and the value of each of the modulation reference color temperature targets, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold; a target light mixing formula corresponding to the target light mixing parameters is obtained, the color temperature level corresponding to the color temperature to be modulated is substituted into the target light mixing formula, the mixing ratio corresponding to the RGBW four-color light is calculated, and the RGBW four-color light is mixed according to the mixing ratio to obtain the target lighting light.

[0083] As an example, the step of obtaining the color temperature ranges corresponding to the standard color temperature targets includes:

[0084] The standard color temperature target points are sorted to obtain a color temperature target point sequence; and the value range between adjacent standard color temperature target points in the color temperature target point sequence is used as the color temperature range.

[0085] The standard color temperature targets include a first color temperature target, a second color temperature target, and a third color temperature target. The step of generating the target light mixing parameters at the color temperature to be modulated according to the size relationship between the color temperature to be modulated and the standard color temperature targets and the standard light mixing parameters includes:

[0086] Step S31: If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target are fused according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter.

[0087] In this embodiment, it should be noted that the color temperature value of the second color temperature target point is greater than the color temperature value of the first color temperature target point, and the first color temperature target point and the second color temperature target point together form a color temperature range.

[0088] As an example, step S31 includes: if the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, then, based on the difference between the color temperature to be modulated and the first color temperature target, and the difference between the second color temperature target and the first color temperature target, the first light mixing parameter corresponding to the first color temperature target and the second light mixing parameter corresponding to the second color temperature target are fused to obtain the target light mixing parameter.

[0089] Step S32: If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

[0090] In this embodiment, it should be noted that the color temperature value of the third color temperature target point is greater than the color temperature value of the second color temperature target point.

[0091] As an example, step S32 includes: if the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, then, based on the difference between the color temperature to be modulated and the second color temperature target, and the difference between the third color temperature target and the second color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused to obtain the target light mixing parameters.

[0092] The first light mixing parameters include a first color adjustment factor and a second color adjustment factor, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor.

[0093] The step of fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the first color temperature target, and the second color temperature target includes:

[0094] Step S311, calculating a first color temperature difference between the color temperature to be modulated and the first color temperature target point, and a second color temperature difference between the second color temperature target point and the color temperature to be modulated;

[0095] Step S312: Compensating the first toning factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the third toning factor and the first toning factor, to obtain the first target toning factor;

[0096] Step S313 : Compensate the second toning factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the fourth toning factor and the second toning factor to obtain the second target toning factor.

[0097] In this embodiment, it should be noted that the first color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the first light mixing parameter, and the second color adjustment factor is the constant term in the light mixing formula corresponding to the first light mixing parameter; the third color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the second light mixing parameter, and the fourth color adjustment factor is the constant term in the light mixing formula corresponding to the second light mixing parameter; the first target color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the target light mixing parameter, and the second target color adjustment factor is the constant term in the light mixing formula corresponding to the target light mixing parameter.

[0098] As an example, steps S311 to S313 include: calculating the difference between the color temperature to be modulated and the first color temperature target to obtain a first color temperature difference, calculating the difference between the second color temperature target and the first color temperature target to obtain a second color temperature difference; calculating the ratio between the first color temperature difference and the second color temperature difference to obtain a first color temperature difference ratio, calculating the difference between the third color adjustment factor and the first color adjustment factor to obtain a first color adjustment factor difference; calculating the product of the first color temperature difference ratio and the first color adjustment factor difference to obtain a first compensation value, and compensating the first color adjustment factor corresponding to the RGB three color lights in the RGBW four color lights based on the first compensation value to obtain the first target color adjustment factor; calculating the difference between the fourth color adjustment factor and the second color adjustment factor to obtain a second color adjustment factor difference, calculating the product of the first color temperature difference ratio and the second color adjustment factor difference to obtain a second compensation value, and compensating the second color adjustment factor corresponding to the RGB three color lights in the RGBW four color lights based on the second compensation value to obtain the second target color adjustment factor. The embodiment of the present application achieves the purpose of modulating the color temperature mixing parameters by integrating the standard mixing parameters of the standard color temperature target. The mixing parameters at any color temperature within a certain color temperature range can be modulated so that the color rendering index of the lighting light obtained by mixing according to the mixing parameters is greater than the preset color rendering index threshold.

[0099] The second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the third light mixing parameters include a fifth color adjustment factor and a sixth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor.

[0100] The step of fusing the second light mixing parameter corresponding to the second color temperature target and the third light mixing parameter corresponding to the third color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the second color temperature target, and the third color temperature target includes:

[0101] Step S321, calculating a third color temperature difference between the color temperature to be modulated and the second color temperature target point, and a fourth color temperature difference between the third color temperature target point and the color temperature to be modulated;

[0102] Step S322: Compensate the third toning factor corresponding to the RGB light in the RGBW light according to the ratio of the third color temperature difference to the fourth color temperature difference and the difference between the fifth toning factor and the third toning factor, to obtain the first target toning factor.

[0103] Step S323 : Compensate the fourth toning factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the sixth toning factor and the fourth toning factor to obtain the second target toning factor.

[0104] In this embodiment, it should be noted that the third color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the third light mixing parameter, and the fourth color adjustment factor is the constant term in the light mixing formula corresponding to the third light mixing parameter; the fifth color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the fourth light mixing parameter, and the sixth color adjustment factor is the constant term in the light mixing formula corresponding to the fourth light mixing parameter; the first target color adjustment factor is the coefficient of the color temperature level input into the light mixing formula corresponding to the target light mixing parameter, and the second target color adjustment factor is the constant term in the light mixing formula corresponding to the target light mixing parameter.

[0105] As an example, steps S321 to S323 include: calculating the difference between the color temperature to be modulated and the second color temperature target to obtain a third color temperature difference, calculating the difference between the third color temperature target and the second color temperature target to obtain a fourth color temperature difference; calculating the ratio between the third color temperature difference and the fourth color temperature difference to obtain a second color temperature difference ratio; calculating the difference between the fifth color adjustment factor and the third color adjustment factor to obtain a third color adjustment factor difference; calculating the product of the second color temperature difference ratio and the third color adjustment factor difference to obtain a third compensation value, and compensating the third color adjustment factor corresponding to the RGB three color lights in the RGBW four color lights according to the third compensation value to obtain the first target color adjustment factor; calculating the difference between the sixth color adjustment factor and the fourth color adjustment factor to obtain a fourth color adjustment factor difference, calculating the product of the second color temperature difference ratio and the fourth color adjustment factor difference to obtain a fourth compensation value, and compensating the fourth color adjustment factor corresponding to the RGB three color lights in the RGBW four color lights according to the fourth compensation value to obtain the second target color adjustment factor. The embodiment of the present application achieves the purpose of modulating the color temperature mixing parameters by integrating the standard mixing parameters of the standard color temperature target. The mixing parameters at any color temperature within a certain color temperature range can be modulated so that the color rendering index of the lighting light obtained by mixing according to the mixing parameters is greater than the preset color rendering index threshold.

[0106] As an example, the standard color temperature targets can be set to 3600K, 4000K and 5000K respectively.

[0107] The light mixing formula corresponding to the standard light mixing parameters at 3600K is as follows:

[0108] W (white light): y = 537.99x + 212.02 R (red light): y = 516.94x + 199.03

[0109] G (green light): y = 156.89x + 56.058 B (blue light): y = 0

[0110] The light mixing formula corresponding to the standard light mixing parameters at 4000K is as follows:

[0111] W:y=537.99x+212.02R:y=387.93x+108.03

[0112] G:y=175.92x+54.039B:y=56.895x+18.058

[0113] The light mixing formula corresponding to the standard light mixing parameters at 5000K is as follows:

[0114] W:y=537.99x+212.02R:y=0

[0115] G:y=144.03x+50.985B:y=216.94x+65.034

[0116] When the color temperature to be modulated is greater than 3600K and less than 4000K, the target light mixing formula for the color temperature to be modulated is as follows:

[0117] W:y=537.99x+212.02

[0118] R:y={[(Q1-3600) / (4000-3600)]*(387.93-516.94)+516.94}x+{[(Q1-3600) / (4000-3600)]*(108.03-199.03)+199.03};

[0119] G:y={[(Q1-3600) / (4000-3600)]*(175.92-156.89)+156.89}x+{[(Q1-3600) / (4000-3600)]*(54.039-56.058)+56.058};

[0120] B:y={[(Q1-3600) / (4000-3600)]*(56.895-0)+0}x+{[(Q1-3600) / (4000-3600)]*(18.058-0)+0};

[0121] When the color temperature to be modulated is greater than 4000K and less than 5000K, the target light mixing formula for the color temperature to be modulated is as follows:

[0122] W:y=537.99x+212.02

[0123] R:y={[(Q2-4000) / (5000-4000)]*(0-387.93)+387.93}x+{[(Q2-4000) / (5000-4000)]*(0-108.03)+108.03};

[0124] G:y={[(Q2-4000) / (5000-4000)]*(144.03-175.92)+175.92}x+{[(Q2-4000) / (5000-4000)]*(50.985-54.039)+54.039};

[0125] B:y={[(Q2-4000) / (5000-4000)]*(175.92-56.895)+56.895}x+{[(Q2-4000) / (5000-4000)]*(65.034-18.058)+18.058};

[0126] Among them, y can be the light intensity or the mixing ratio, and x is the color temperature gear corresponding to the color temperature size. For example, 3600K can be set to gear 1, 4000K to gear 2, 5000K to gear 3, etc. The coefficient of x and the constant term in the mixing formula are both dimming factors.

[0127] In addition, it should be noted that the light emitted by current lighting equipment is usually white light, such as the light emitted by incandescent lamps. In the embodiment of the present application, by mixing the RGBW four-color light, the spectrum of the lighting light obtained by mixing the RGB four-color light at any color temperature can be made closer to the solar spectrum, thereby improving the color rendering index of the lighting light.

[0128] As an example, Figure 2 This is a schematic diagram of the spectrum of white light, with an overall color rendering index of 88.8; Figure 3 is a schematic diagram of the spectrum of red light, Figure 4 is a schematic diagram of the spectrum of green light, Figure 5 Schematic diagram of the spectrum of blue light;

[0129] Figure 6 Schematic diagram of the spectrum of the lighting light after mixing RGBW four-color light at a color temperature of 3600K in the embodiment of the present application, with an overall color rendering index of 91.4; Figure 7 Schematic diagram of the spectrum of the lighting light after mixing the RGBW four-color light when the color temperature is 4000K in the embodiment of the present application, with an overall color rendering index of 92.9; Figure 8This is a schematic diagram of the spectrum of the lighting fixture obtained by mixing RGBW light at a color temperature of 5000K in this embodiment. The overall color rendering index is 96.7. R1 to R15 represent the color rendering indexes for different standard colors, TM-30 represents the TM-30 test method, Rf represents the color fidelity index, and Rg represents the color saturation index. In each of the spectrum diagrams, the color rendering index of the lighting fixture obtained by mixing RGBW light at each color temperature is significantly higher than that of the original white light.

[0130] The embodiment of the present application provides a lighting control method, which adopts RGBW four-color chip lamp beads, and can use RGB three-color light to compensate for white (W) light, so that the spectrum of the light emitted by the lighting device is closer to the solar spectrum, and a standard color temperature target and corresponding standard mixing parameters are pre-set, wherein the standard mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target is greater than a preset display index threshold; when color temperature modulation is required, the target mixing parameter under the color temperature to be modulated can be generated according to the difference between the color temperature to be modulated and the standard color temperature target. Light parameters, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold; the RGBW four-color light is mixed according to the mixing ratio calculated according to the color temperature gear and the target light mixing parameters, so that a target lighting light with a display index greater than a preset display index at the color temperature to be modulated can be obtained, and refined light mixing under different transformed color temperatures is achieved, which can ensure that the lighting light at any color temperature is a light with a high color rendering index, thereby improving the color rendering index of the lighting equipment, thereby improving the lighting effect of the lighting equipment.

[0131] Example 2

[0132] Furthermore, an embodiment of the present application provides a lighting control method. Based on the first embodiment of the lighting control method of the present application, the lighting equipment is provided with a reflector cup assembly, the reflector cup assembly includes a reflector and a diffuser plate, the diffuser plate includes a main diffuser plate and a secondary diffuser plate, and after the step of mixing the RGBW four-color light according to the mixing ratio calculated according to the color temperature level and the target mixing parameter to obtain the target lighting light, the lighting control method further includes:

[0133] Step S50, refracting the target lighting light through the reflector, controlling the refracted target lighting light to irradiate through the main diffuser plate and the auxiliary diffuser plate respectively, wherein the main diffuser plate is used to ensure the uniformity of illumination in the main lighting area of ​​the lighting device, and the auxiliary diffuser plate is used to ensure the uniformity of illumination in the auxiliary lighting area of ​​the lighting device.

[0134] In this embodiment, it should be noted that the lighting device can be a desk lamp or a car light. The lighting device includes RGBW four-color chip lamp beads, a reflector, and a diffuser. The diffuser includes a primary diffuser and a secondary diffuser. The primary diffuser is used to ensure uniform illumination in the primary lighting area of ​​the lighting device, and the secondary diffuser is used to ensure uniform illumination in the secondary lighting area of ​​the lighting device.

[0135] As an example, if the lighting device is a desk lamp, the main lighting area is the front area of ​​the desk lamp, and the secondary lighting area is the side area of ​​the desk lamp.

[0136] As an example, the diffuser is arranged on the reflector, and a plurality of spaced polarizing prisms are provided on one side of the diffuser close to the reflector. The polarizing prisms are used to refract the target lighting light, reduce glare, and improve the illumination uniformity of the lighting equipment.

[0137] As an example, it should be noted that the light-emitting principle of traditional white light LEDs is that the light-emitting chip releases blue light. By covering the surface of the light-emitting chip with yellow phosphor, the phosphor is stimulated to emit white light. Therefore, the LED will inevitably release blue light, which is harmful to human eye health. In the embodiment of the present application, the RGBW four-color chip lamp bead mixing scheme can increase the proportion of red light and reduce the proportion of blue light, thereby reducing the blue light of the light. A small amount of yellow toner can also be added to the diffuser to further absorb the blue light in the light, thereby further reducing the blue light, reducing the harm of the lighting to the human body, and improving the health of the lighting.

[0138] As an example, step S50 includes: refracting the target lighting light through the reflector, and controlling the refracted target lighting light to pass through the main diffuser plate and the secondary diffuser plate to irradiate respectively, wherein the main diffuser plate is provided with a polarizing prism to ensure the uniformity of illumination in the main illumination area of ​​the lighting device, and the secondary diffuser plate is provided with a polarizing prism to ensure the uniformity of illumination in the secondary illumination area of ​​the lighting device.

[0139] An embodiment of the present application provides a lighting control method, namely, refracting the target lighting light through the reflector, and controlling the refracted target lighting light to pass through the main diffuser plate and the secondary diffuser plate respectively for irradiation, wherein polarizing prisms are provided in the main diffuser plate and the secondary diffuser plate for achieving a polarization effect to improve the illumination uniformity of the lighting equipment, and yellow toner is provided on the diffuser plate to absorb blue light in the target lighting light, thereby further reducing the blue light, reducing the harm of the lighting light to the human body, and improving the health of the lighting.

[0140] Example 3

[0141] The present application also provides a lighting control device for use in a lighting device. The lighting device is provided with RGBW four-color chip lamp beads, and the RGBW four-color chip lamp beads are used to emit RGBW four-color light. The lighting control device includes:

[0142] A first acquisition module is used to acquire a color temperature to be modulated and determine a color temperature level corresponding to the color temperature to be modulated;

[0143] a second acquisition module, configured to acquire each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is configured to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold;

[0144] a generating module, configured to generate target light mixing parameters at the color temperature to be modulated based on a size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold;

[0145] The light mixing module is used to mix the RGBW four-color light according to the color temperature level and the light mixing ratio calculated by the target light mixing parameter to obtain the target lighting light.

[0146] Optionally, each of the standard color temperature target points includes a first color temperature target point, a second color temperature target point, and a third color temperature target point, and the generating module is further configured to:

[0147] If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter;

[0148] If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

[0149] Optionally, the first light mixing parameters include a first color adjustment factor and a second color adjustment factor, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor, and the generating module is further configured to:

[0150] Calculate a first color temperature difference between the color temperature to be modulated and the first color temperature target point, and a second color temperature difference between the second color temperature target point and the color temperature to be modulated;

[0151] Compensating the first color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the third color adjustment factor and the first color adjustment factor to obtain the first target color adjustment factor;

[0152] The second color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the fourth color adjustment factor and the second color adjustment factor to obtain the second target color adjustment factor.

[0153] Optionally, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the third light mixing parameters include a fifth color adjustment factor and a sixth color adjustment factor, the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor, and the generating module is further configured to:

[0154] Calculate a third color temperature difference between the color temperature to be modulated and the second color temperature target point, and a fourth color temperature difference between the third color temperature target point and the color temperature to be modulated;

[0155] Compensating the third color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the fifth color adjustment factor and the third color adjustment factor to obtain the first target color adjustment factor;

[0156] The fourth tinting factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the sixth tinting factor and the fourth tinting factor to obtain the second target tinting factor.

[0157] Optionally, the lighting control device is further used to:

[0158] The target lighting light is refracted by the reflector, and the refracted target lighting light is controlled to pass through the main diffuser plate and the secondary diffuser plate respectively to irradiate, wherein the main diffuser plate is used to ensure the uniformity of illumination in the main lighting area of ​​the lighting device, and the secondary diffuser plate is used to ensure the uniformity of illumination in the secondary lighting area of ​​the lighting device.

[0159] Optionally, yellow toner is provided on the diffusion plate, and the yellow toner is used to absorb blue light in the target lighting light.

[0160] Optionally, the diffusion plate is provided with polarizing prisms, and the polarizing prisms are used to refract the target lighting light to improve the illumination uniformity of the lighting device.

[0161] The lighting control device provided in this application utilizes the lighting control method described in the aforementioned embodiments to address the technical issue of poor lighting effects in lighting equipment. Compared to the prior art, the lighting control device provided in this application's embodiments achieves the same beneficial effects as the lighting control method described in the aforementioned embodiments. Other technical features of this lighting control device are the same as those disclosed in the aforementioned embodiments and are not further detailed here.

[0162] Example 4

[0163] An embodiment of the present application provides an electronic device, which may be a lighting device. The lighting device is provided with RGBW four-color chip lamp beads, and the RGBW four-color chip lamp beads are used to emit RGBW four-color light. The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the lighting control method in the above-mentioned embodiment one.

[0164] Reference below Figure 9 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 9 The electronic device shown is only an example and should not limit the functions and scope of use of the embodiments of the present disclosure.

[0165] like Figure 9 As shown, the electronic device may include a processing device (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the electronic device are also stored. The processing device, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0166] Typically, the following systems can be connected to the I / O interface: input devices such as a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices such as a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices such as a magnetic tape, hard disk, etc.; and communication devices. The communication device can allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figures show electronic devices with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

[0167] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by a processing device, the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.

[0168] The electronic device provided in this application utilizes the lighting control method of the aforementioned embodiment to resolve the technical problem of poor lighting effects in lighting devices. Compared to the prior art, the beneficial effects of the electronic device provided in this embodiment are the same as those of the lighting control method provided in the aforementioned embodiment. Other technical features of this electronic device are the same as those disclosed in the aforementioned embodiment and are not further described here.

[0169] It should be understood that various parts of the present disclosure can be implemented with hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0170] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0171] Example 5

[0172] This embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, and the computer-readable program instructions are used to execute the lighting control method in the above-mentioned embodiment 1.

[0173] The computer-readable storage medium provided in the embodiment of the present application can be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. A more specific example of a computer-readable storage medium can include, but is not limited to, an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer-readable storage medium can be any tangible medium containing or storing a program that can be used by an instruction execution system, a system or a device or used in combination therewith. The program code contained in the computer-readable storage medium can be transmitted with any appropriate medium, including but not limited to: an electric wire, an optical cable, RF (radio frequency), etc., or any suitable combination thereof.

[0174] The computer-readable storage medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0175] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by an electronic device, the electronic device is caused to: obtain the color temperature to be modulated and determine the color temperature gear corresponding to the color temperature to be modulated; obtain each standard color temperature target corresponding to the lighting device and the standard light mixing parameters under each standard color temperature target, wherein the standard light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target is greater than a preset display index threshold; generate target light mixing parameters under the color temperature to be modulated based on the size relationship between the color temperature to be modulated and each standard color temperature target and each standard light mixing parameter, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the color temperature to be modulated is greater than a preset display index threshold; mix the RGBW four-color light according to the mixing ratio calculated from the color temperature gear and the target light mixing parameters to obtain the target lighting light.

[0176] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0177] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0178] The modules involved in the embodiments described in this disclosure may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0179] The computer-readable storage medium provided in this application stores computer-readable program instructions for executing the aforementioned lighting control method, thereby resolving the technical issue of poor lighting effects in lighting equipment. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this embodiment of the application are similar to those of the lighting control method provided in the aforementioned embodiment, and are not further elaborated here.

[0180] Example 6

[0181] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned lighting control method when executed by a processor.

[0182] The computer program product provided in this application solves the technical problem of poor lighting effects of lighting equipment. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiment of this application are the same as the beneficial effects of the lighting control method provided in the above embodiment, and will not be repeated here.

[0183] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A lighting control method, characterized in that: Applied to a lighting device, the lighting device is provided with an RGBW four-color chip lamp bead, the RGBW four-color chip lamp bead is used to emit RGBW four-color light, and the lighting light control method includes: Obtaining a color temperature to be modulated, and determining a color temperature level corresponding to the color temperature to be modulated; Obtaining each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold; generating target light mixing parameters at the color temperature to be modulated based on the size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that the color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold; Mixing the RGBW four-color light according to the color temperature level and the mixing ratio calculated by the target mixing parameter to obtain the target lighting light; Each of the standard color temperature targets includes a first color temperature target, a second color temperature target, and a third color temperature target. The step of generating the target light mixing parameters at the color temperature to be modulated according to the size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters includes: If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter; If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

2. The lighting control method according to claim 1, wherein: The first light mixing parameters include a first color adjustment factor and a second color adjustment factor, the second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor. The step of fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the first color temperature target, and the second color temperature target includes: Calculate a first color temperature difference between the color temperature to be modulated and the first color temperature target point, and a second color temperature difference between the second color temperature target point and the color temperature to be modulated; Compensating the first color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the third color adjustment factor and the first color adjustment factor to obtain the first target color adjustment factor; The second color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the first color temperature difference and the second color temperature difference and the difference between the fourth color adjustment factor and the second color adjustment factor to obtain the second target color adjustment factor.

3. The lighting control method according to claim 1, wherein: The second light mixing parameters include a third color adjustment factor and a fourth color adjustment factor, the third light mixing parameters include a fifth color adjustment factor and a sixth color adjustment factor, and the target light mixing parameters include a first target color adjustment factor and a second target color adjustment factor. The step of fusing the second light mixing parameter corresponding to the second color temperature target and the third light mixing parameter corresponding to the third color temperature target to obtain the target light mixing parameter according to the color temperature to be modulated, the second color temperature target, and the third color temperature target includes: Calculate a third color temperature difference between the color temperature to be modulated and the second color temperature target point, and a fourth color temperature difference between the third color temperature target point and the color temperature to be modulated; Compensating the third color adjustment factor corresponding to the RGB three-color light in the RGBW four-color light according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the fifth color adjustment factor and the third color adjustment factor to obtain the first target color adjustment factor; The fourth tinting factor corresponding to the RGB three-color light in the RGBW four-color light is compensated according to the ratio between the third color temperature difference and the fourth color temperature difference and the difference between the sixth tinting factor and the fourth tinting factor to obtain the second target tinting factor.

4. The lighting control method according to claim 1, wherein: The lighting device is provided with a reflector cup assembly, the reflector cup assembly includes a reflector and a diffuser plate, the diffuser plate includes a main diffuser plate and a secondary diffuser plate, and after the step of mixing the RGBW four-color light according to the mixing ratio calculated according to the color temperature gear and the target mixing parameter to obtain the target lighting light, the lighting light control method further includes: The target lighting light is refracted by the reflector, and the refracted target lighting light is controlled to pass through the main diffuser plate and the secondary diffuser plate respectively to irradiate, wherein the main diffuser plate is used to ensure the uniformity of illumination in the main lighting area of ​​the lighting device, and the secondary diffuser plate is used to ensure the uniformity of illumination in the secondary lighting area of ​​the lighting device.

5. The lighting control method according to claim 4, wherein: Yellow toner is provided on the diffusion plate, and the yellow toner is used to absorb the blue light in the target lighting light.

6. The lighting control method according to claim 4, wherein: The diffusion plate is provided with polarizing prisms, and the polarizing prisms are used to refract the target lighting light to improve the illumination uniformity of the lighting device.

7. A lighting control device, characterized in that: Applicable to lighting equipment, the lighting equipment is provided with RGBW four-color chip lamp beads, the RGBW four-color chip lamp beads are used to emit RGBW four-color light, the lighting light control device includes: A first acquisition module is used to acquire a color temperature to be modulated and determine a color temperature level corresponding to the color temperature to be modulated; a second acquisition module, configured to acquire each standard color temperature target point corresponding to the lighting device and a standard light mixing parameter under each standard color temperature target point, wherein the standard light mixing parameter is configured to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light under the standard color temperature target point is greater than a preset display index threshold; a generating module, configured to generate target light mixing parameters at the color temperature to be modulated based on a size relationship between the color temperature to be modulated and each of the standard color temperature targets and each of the standard light mixing parameters, wherein the target light mixing parameters are used to ensure that a color rendering index of the lighting light obtained by mixing the RGBW four-color light at the color temperature to be modulated is greater than a preset display index threshold; a light mixing module, configured to mix the RGBW four-color light according to the color temperature level and the light mixing ratio calculated by the target light mixing parameter to obtain a target lighting light; Each of the standard color temperature target points includes a first color temperature target point, a second color temperature target point, and a third color temperature target point. The generation module is further configured to: If the color temperature to be modulated is greater than the first color temperature target and less than the second color temperature target, fusing a first light mixing parameter corresponding to the first color temperature target and a second light mixing parameter corresponding to the second color temperature target according to the color temperature to be modulated, the first color temperature target, and the second color temperature target to obtain the target light mixing parameter; If the color temperature to be modulated is greater than the second color temperature target and less than the third color temperature target, the second light mixing parameters corresponding to the second color temperature target and the third light mixing parameters corresponding to the third color temperature target are fused according to the color temperature to be modulated, the second color temperature target, and the third color temperature target to obtain the target light mixing parameters.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the steps of the lighting control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program for implementing the lighting control method, and the program for implementing the lighting control method is executed by a processor to implement the steps of the lighting control method according to any one of claims 1 to 6.

Images