Spectral base selection method and system, computer device and computer storage medium

Abstract

The present invention relates to the technical field of illumination. Disclosed are a spectral base selection method and system, a computer device and a computer storage medium. The method comprises: on the basis of the number of target channels, combining preset spectra to construct a plurality of multi-channel light source combinations; respectively computing regulation indexes of each multi-channel light source combination within a preset color temperature range, wherein the regulation indexes include a circadian regulation and control range of the melanopic / photopic ratio, luminous efficacy of radiation at the highest circadian stimulus, luminous efficacy of radiation at the lowest circadian stimulus, and a color rendering index; extracting an optimal multi-channel light source combination from the plurality of multi-channel light source combinations on the basis of the regulation indexes; and optimizing the optimal multi-channel light source combination on the basis of an ipRGCs response curve and a photopic vision function. By means of the present invention, the selected spectral base scheme can be more scientific and better meets human circadian health needs in elderly care and medical environments.

Description

Spectral base selection method, system, computer equipment and computer storage medium Technical Field

[0001] The present invention relates to the field of lighting technology, and in particular to a spectrum base selection method, system, computer equipment and computer storage medium. Background Art

[0002] Commonly used lamps on the market usually use RGB three-channel or RGBW four-channel for lamp mode control to achieve lighting effects in different scenes.

[0003] At present, when selecting a spectral base, the three primary colors of red, green, and blue and conventional 4000K white light are usually selected. There are no clear requirements for wavelength, spectrum width, and other core indicators, which makes it difficult to meet the needs of elderly-friendly and medical lighting scenarios.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a spectral base selection method, system, computer equipment and computer storage medium, which can achieve a larger rhythm control range and better comprehensive indicators.

[0006] In order to solve the above technical problems, the present invention provides a spectral base selection method, comprising: combining preset spectra according to the number of target channels to construct multiple groups of multi-channel light source combinations; calculating the adjustment indicators of each group of multi-channel light source combinations within a preset color temperature range, the adjustment indicators including the rhythmic control range of the melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation, and the color rendering index; extracting the optimal multi-channel light source combination from the multiple groups of multi-channel light source combinations according to the adjustment indicators; and optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

[0007] As an improvement of the above-mentioned scheme, the method for extracting the best multi-channel light source combination from multiple groups of multi-channel light source combinations based on the adjustment index includes: when only considering the rhythmic control range of the melanin ratio, the larger the rhythmic control range of the melanin ratio, the better the corresponding multi-channel light source combination; when only considering the luminous efficacy during the highest rhythmic stimulation, the higher the luminous efficacy during the highest rhythmic stimulation, the better the corresponding multi-channel light source combination; when only considering the luminous efficacy during the lowest rhythmic stimulation, the higher the luminous efficacy during the lowest rhythmic stimulation, the better the corresponding multi-channel light source combination; when only considering the color rendering index, the larger the color rendering index, the better the corresponding multi-channel light source combination.

[0008] As an improvement of the above solution, among the regulation indicators, the importance of the rhythmic control range of the melanin ratio is greater than the importance of the luminous efficacy at the highest rhythmic stimulation and the importance of the luminous efficacy at the lowest rhythmic stimulation.

[0009] As an improvement to the above scheme, the step of optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function includes: adjusting the spectrum in the optimal multi-channel light source combination according to the band characteristics of the ipRGCs response curve and the photopic vision function to increase the rhythmic regulation range of the melanin ratio.

[0010] As an improvement to the above scheme, the step of optimizing the optimal multi-channel light source combination based on the ipRGCs response curve and the photopic vision function includes: when lowering the minimum value of the rhythmic control range of the melanin ratio, lowering the spectral value of the peak band of the ipRGCs response curve and increasing the spectral value of the peak band of the photopic vision function.

[0011] As an improvement to the above scheme, the step of optimizing the optimal multi-channel light source combination based on the ipRGCs response curve and the photopic vision function includes: when increasing the maximum value of the rhythmic regulation range of the melanin ratio, increasing the spectral value of the peak band of the ipRGCs response curve and reducing the spectral value of the peak band of the photopic vision function.

[0012] As an improvement to the above scheme, when the number of target channels is 5, the optimized optimal multi-channel light source combination includes: white light with a dominant wavelength of 438nm~458nm, a peak wavelength of 438nm~458nm, and a half-peak width of 10nm~30nm; red light with a dominant wavelength of 622nm~642nm, a peak wavelength of 623nm~643nm, and a half-peak width of 10nm~30nm; green light with a dominant wavelength of 508nm~548nm, a peak wavelength of 507nm~547nm, and a half-peak width of 37nm~77nm; blue light with a dominant wavelength of 462nm~482nm, a peak wavelength of 462nm~482nm, and a half-peak width of 10nm~30nm; and yellow light with a dominant wavelength of 601nm~621nm, a peak wavelength of 604nm~624nm, and a half-peak width of 20nm~60nm.

[0013] Accordingly, the present invention also provides a spectral base selection system, comprising: a construction module for combining preset spectra according to the target number of channels to construct multiple groups of multi-channel light source combinations; a calculation module for respectively calculating the adjustment indicators of each group of multi-channel light source combinations within a preset color temperature range, the adjustment indicators including the rhythmic control range of the melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation, and the color rendering index; a screening module for extracting the best multi-channel light source combination from the multiple groups of multi-channel light source combinations according to the adjustment indicators; and an optimization module for optimizing the best multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

[0014] Accordingly, the present invention further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein the processor implements the steps of the above-mentioned spectral base selection method when executing the computer program.

[0015] Accordingly, the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the above-mentioned spectral base selection method when executed by a processor.

[0016] The implementation of the present invention has the following beneficial effects:

[0017] The present invention introduces the rhythmic control range of the melanin ratio, the luminous efficacy (luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation) and the color rendering index as core indicators to give priority to different spectral combinations; at the same time, the present invention starts from the melanin ratio calculation formula and adjusts the high rhythm and low rhythm respectively based on the ipRGCs response curve and the band tendency of the photopic vision function, so that the selected spectral base scheme is more scientific and more in line with the rhythmic health needs of the human body in the elderly-friendly and medical nursing spaces.

[0018] Furthermore, the present invention is applied to a five-channel spectrum base. Compared with the conventional three-channel or four-channel spectrum debugging technology, the five-channel spectrum debugging technology can achieve a larger rhythm control range and better comprehensive indicators, which is particularly suitable for elderly-friendly and medical lighting scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a flow chart of an embodiment of a spectrum base selection method of the present invention;

[0020] FIG2 is a graph showing 13 spectrum curves of the spectrum base database of the present invention;

[0021] FIG3 is a diagram showing adjustment indicators of 49 groups of multi-channel light source combinations in the present invention;

[0022] FIG4 is a spectrum curve diagram of the best multi-channel light source combination in the present invention;

[0023] FIG5 is a spectrum curve diagram used in the M / P Ratio calculation of the present invention;

[0024] FIG6 is a spectrum curve diagram of the optimized multi-channel light source combination in the present invention;

[0025] FIG7 is a schematic structural diagram of the spectrum base selection system of the present invention. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Referring to FIG1 , FIG1 shows a flow chart of an embodiment of a spectrum base selection method of the present invention, which is characterized by comprising:

[0028] S101, combining preset spectra according to the number of target channels to construct multiple groups of multi-channel light source combinations;

[0029] As shown in Figure 2, by searching the database of spectrum bases that can be industrially mass-produced on the market, 13 spectra can be sorted out.

[0030] By combining spectra according to the number of target channels, multiple multi-channel light source combinations can be constructed. For example, 13 spectra can be used to construct 78 two-channel light source combinations, or 1,287 five-channel light source combinations.

[0031] Furthermore, the multi-channel light source combinations that are obviously not suitable for lighting use can be deleted in combination with the light source effects.

[0032] S102, calculating the adjustment index of each group of multi-channel light source combinations within a preset color temperature range;

[0033] The regulation indexes include the rhythmic regulation range of melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation and the color rendering index.

[0034] The melatonin ratio, or M / P Ratio, is the ratio of non-visual effects to visual effects. The larger the value, the more effective it is in suppressing melatonin secretion; the smaller the value, the more effective it is in promoting melatonin secretion.

[0035] Luminous efficiency, or LER, is the ratio of luminous flux to radiant flux measured at the same wavelength.

[0036] The present invention calculates the rhythmic control range of the melanin ratio and its corresponding luminous efficacy and color rendering index under different color temperature conditions by superimposing the luminous flux of the spectrum of each channel in the multi-channel light source combination.

[0037] S103, extracting the best multi-channel light source combination from the multiple groups of multi-channel light source combinations according to the adjustment index;

[0038] It should be noted that the smaller the minimum value in the rhythmic control range of the melanin ratio, the better the low-rhythmic stimulation effect of the spectrum, which is suitable for night lighting and inducing rapid sleep; the larger the maximum value in the rhythmic control range of the melanin ratio, the better the high-rhythmic stimulation effect of the spectrum, which is suitable for daytime work lighting and improves mental concentration and work efficiency; therefore, the larger the rhythmic control range of the melanin ratio, the better the achievable daytime and nighttime biological rhythm control effect.

[0039] Therefore, the present invention extracts the best multi-channel light source combination from multiple groups of multi-channel light source combinations based on the rhythmic control range of the melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation, and the color rendering index. Specific screening criteria include:

[0040] (1) When only the rhythmic control range of the melanin ratio is considered, the larger the rhythmic control range of the melanin ratio, the better the corresponding multi-channel light source combination;

[0041] (2) When only considering the luminous efficacy at the highest rhythmic stimulation, the higher the luminous efficacy at the highest rhythmic stimulation, the better the corresponding multi-channel light source combination;

[0042] (3) When only considering the luminous efficacy at the lowest rhythmic stimulation, the higher the luminous efficacy at the lowest rhythmic stimulation, the better the corresponding multi-channel light source combination;

[0043] (4) When considering only the color rendering index, the larger the color rendering index, the better the corresponding multi-channel light source combination. Generally, the color rendering index needs to be greater than 80.

[0044] Among the aforementioned regulatory indices, the rhythmic regulation range of the melanin ratio is more important than the luminous efficacy at the highest rhythmic stimulation and the luminous efficacy at the lowest rhythmic stimulation. In other words, the rhythmic regulation range of the melanin ratio can be used as the first indicator, and luminous efficacy as the second indicator.

[0045] For example, the rhythmic regulation range of the melanin ratio in the multi-channel light source combination A1 is 0.48-1.04, the luminous efficacy at the highest rhythmic stimulation is 235, and the luminous efficacy at the lowest rhythmic stimulation is 290; the rhythmic regulation range of the melanin ratio in the multi-channel light source combination A2 is 0.36-1.04, the luminous efficacy at the highest rhythmic stimulation is 235, and the luminous efficacy at the lowest rhythmic stimulation is 259; the multi-channel light source combination A2 is regarded as the optimal multi-channel light source combination;

[0046] For another example, the rhythmic regulation range of the melanin ratio in the multi-channel light source combination B1 is 0.48-1.04, the luminous efficacy at the highest rhythmic stimulation is 235, and the luminous efficacy at the lowest rhythmic stimulation is 290; the rhythmic regulation range of the melanin ratio in the multi-channel light source combination B2 is 0.48-1.03, the luminous efficacy at the highest rhythmic stimulation is 290, and the luminous efficacy at the lowest rhythmic stimulation is 292; although the rhythmic regulation range of the multi-channel light source combination B1 is slightly larger than that of the multi-channel light source combination B2, the luminous efficacy at the highest rhythmic stimulation of the multi-channel light source combination B1 is significantly lower than that of the multi-channel light source combination B2 at the highest rhythmic stimulation. Therefore, considering the differences in the above-mentioned regulation indicators, the multi-channel light source combination VB2 is regarded as the best multi-channel light source combination.

[0047] Preferably, a combination can be selected in which the rhythmic regulation range of the melanin ratio is the largest and the light visual efficacy is relatively high when the color rendering index is greater than 80.

[0048] S104, optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

[0049] In order to achieve a wider range of rhythm control and product lighting efficiency, the screened spectral base needs to be optimized.

[0050] Since the calculation of the melanin ratio is related to the ipRGCs spectral response curve and photopic vision function, the corresponding calculation formula is:

[0051] Where E(λ) is the measured value of the spectral power density distribution per unit area, N(λ) is the spectral response curve of ipRGCs, and V(λ) is the photopic vision function.

[0052] Therefore, the spectrum of the optimal multi-channel light source combination can be adjusted according to the ipRGCs response curve and the wavelength characteristics of the photopic vision function to increase the rhythmic regulation range of the melanin ratio. Specifically:

[0053] (1) When the minimum value of the rhythmic regulation range of the melanin ratio is reduced, the spectral value of the peak band of the ipRGCs response curve is reduced, and the spectral value of the peak band of the photopic vision function is increased.

[0054] In order to reduce the minimum value of the rhythmic regulation range of the melanin ratio, the spectral value corresponding to the peak band of the ipRGCs response curve can be reduced, and the spectral value corresponding to the peak band of the photopic vision function can be increased; specifically, this can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the photopic vision response curve.

[0055] (2) When the maximum value of the rhythmic regulation range of the melanin ratio is increased, the spectral value of the peak band of the ipRGCs response curve is increased, and the spectral value of the peak band of the photopic vision function is decreased.

[0056] In order to increase the maximum value of the rhythmic regulation range of the melanin ratio, the spectral value corresponding to the peak band of the ipRGCs response curve can be increased, and the spectral value corresponding to the peak band of the photopic vision function can be reduced; specifically, this can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the ipRGCs response curve.

[0057] Therefore, the present invention starts from the melanin ratio calculation formula and adjusts the high rhythm and low rhythm respectively based on the ipRGCs response curve and the band tendency of the photopic vision function.

[0058] From the above, it can be seen that the present invention introduces the rhythmic control range of the melanin ratio, the luminous efficacy (luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation) and the color rendering index as core indicators, and gives priority to different spectral combinations to make the selected spectral base scheme more scientific and more in line with the rhythmic health needs of the human body in the elderly-friendly and medical nursing spaces.

[0059] The present invention is described in further detail below in conjunction with specific embodiments:

[0060] Step 1: As shown in Figure 2, 13 spectra were sorted out based on the spectral base database that can be industrially mass-produced on the market. 1287 five-channel light source combinations were constructed from these 13 spectra. After deleting multi-channel light source combinations that were obviously not suitable for lighting use, 49 five-channel light source combinations were obtained.

[0061] Step 2: As shown in FIG3 , the adjustment index of each group of multi-channel light source combinations within the preset color temperature range is calculated respectively;

[0062] Step 3: Filter out the optimal five-channel light source combination. As shown in Figure 4, the corresponding five-channel spectra are Deep Red, G, B, 2700K, and PC-Amber. The rhythmic regulation range of the melanin ratio is 0.37 to 1.07. The luminous efficacy at the highest rhythmic stimulation is 265, and the luminous efficacy at the lowest rhythmic stimulation is 288.

[0063] Step 4: As shown in Figure 5, in order to reduce the minimum value of the rhythmic regulation range of the melanin ratio, it is necessary to reduce the spectral value of the 480nm (±50nm) band corresponding to the ipRGCs response curve and increase the spectral value of the 570nm (±50nm) band corresponding to the photopic vision function. This can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the photopic vision response curve (570nm±50nm); therefore, Yellow with a longer peak wavelength was selected to replace the original PC-Amber spectrum base, achieving the minimum value of the rhythmic regulation range of the melanin ratio of 0.24, which is the lowest melanin ratio in the white light illumination range in China. At the same time, in order to increase the maximum value of the rhythmic regulation range of the melanin ratio, it is necessary to increase the spectral value of the 480nm (±20nm) band corresponding to the ipRGCs response curve and reduce the spectral value of the 580nm (±20nm) band corresponding to the bright vision function. This can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the ipRGCs response curve (480nm±20nm); therefore, blue light with a peak wavelength closer to 480nm was selected to replace the original blue light spectrum base, achieving the maximum value of the rhythmic regulation range of the melanin ratio of 1.27, which is the highest melanin ratio in the country within the white light illumination range.

[0064] As shown in Figure 6, the optimized best multi-channel light source combination includes:

[0065] White light with a dominant wavelength of 438nm to 458nm, a peak wavelength of 438nm to 458nm, and a half-peak width of 10nm to 30nm;

[0066] Red light with a dominant wavelength of 622nm to 642nm, a peak wavelength of 623nm to 643nm, and a half-peak width of 10nm to 30nm;

[0067] Green light with a dominant wavelength of 508nm to 548nm, a peak wavelength of 507nm to 547nm, and a half-peak width of 37nm to 77nm;

[0068] Blue light with a main wavelength of 462nm to 482nm, a peak wavelength of 462nm to 482nm, and a half-peak width of 10nm to 30nm;

[0069] Yellow light with a main wavelength of 601nm~621nm, a peak wavelength of 604nm~624nm, and a half-peak width of 20nm~60nm.

[0070] As shown in Table 1, the core reference indicators that can be achieved by the optimized five-channel light source combination are: the rhythmic control range of the melanin ratio is 0.24 to 1.27, the color rendering index in the debugged range of 1800 to 6500K is all greater than 80, the luminous efficacy is all greater than 274, and the highest value of luminous efficacy reaches 334.4.

[0071] In summary, this patent adopts five-channel spectrum base control technology. Compared with conventional three-channel or four-channel spectrum adjustment technology, five-channel spectrum adjustment technology can achieve a larger rhythm control range and better comprehensive indicators, and can be applied to elderly-friendly and medical lighting scenarios.

[0072] Referring to FIG. 7 , FIG. 7 shows a specific structure of the spectrum base selection system 100 of the present invention, which includes:

[0073] Construction module 1 is used to combine preset spectra according to the target channel number to construct multiple groups of multi-channel light source combinations; further, based on the light source effect, multi-channel light source combinations that are obviously not suitable for lighting use can be deleted.

[0074] Calculation module 2 is used to calculate the adjustment index of each group of multi-channel light source combinations within a preset color temperature range; wherein the adjustment index includes the rhythmic control range of the melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation, and the color rendering index; the present invention calculates the rhythmic control range of the melanin ratio and its corresponding luminous efficacy and color rendering index under different color temperature conditions by superimposing the luminous flux of the spectrum of each channel in the multi-channel light source combination.

[0075] A screening module 3 is used to extract the best multi-channel light source combination from multiple groups of multi-channel light source combinations according to the adjustment index;

[0076] The optimization module 4 is used to optimize the best multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

[0077] It should be noted that the smaller the minimum value in the rhythmic control range of the melanin ratio, the better the low-rhythmic stimulation effect of the spectrum, which is suitable for night lighting and inducing rapid sleep; the larger the maximum value in the rhythmic control range of the melanin ratio, the better the high-rhythmic stimulation effect of the spectrum, which is suitable for daytime work lighting and improves mental concentration and work efficiency; therefore, the larger the rhythmic control range of the melanin ratio, the better the achievable daytime and nighttime biological rhythm control effect.

[0078] Therefore, the screening module 3 extracts the best multi-channel light source combination from multiple groups of multi-channel light source combinations based on the rhythmic control range of the melanin ratio, the luminous efficacy at the highest rhythmic stimulation, the luminous efficacy at the lowest rhythmic stimulation, and the color rendering index. Specific screening criteria include:

[0079] (1) When only the rhythmic control range of the melanin ratio is considered, the larger the rhythmic control range of the melanin ratio, the better the corresponding multi-channel light source combination;

[0080] (2) When only considering the luminous efficacy at the highest rhythmic stimulation, the higher the luminous efficacy at the highest rhythmic stimulation, the better the corresponding multi-channel light source combination;

[0081] (3) When only considering the luminous efficacy at the lowest rhythmic stimulation, the higher the luminous efficacy at the lowest rhythmic stimulation, the better the corresponding multi-channel light source combination;

[0082] (4) When considering only the color rendering index, the larger the color rendering index, the better the corresponding multi-channel light source combination. Generally, the color rendering index needs to be greater than 80.

[0083] Among the aforementioned regulatory indices, the rhythmic regulation range of the melanin ratio is more important than the luminous efficacy at the highest rhythmic stimulation and the luminous efficacy at the lowest rhythmic stimulation. In other words, the rhythmic regulation range of the melanin ratio can be used as the first indicator, and luminous efficacy as the second indicator.

[0084] In addition, the optimization module 4 can adjust the spectrum of the optimal multi-channel light source combination according to the ipRGCs response curve and the wavelength characteristics of the photopic vision function to increase the rhythmic regulation range of the melanin ratio. Specifically:

[0085] (1) When reducing the minimum value of the rhythmic regulation range of the melanin ratio, the spectral value of the peak band of the ipRGCs response curve is reduced, and the spectral value of the peak band of the photopic vision function is increased. To reduce the minimum value of the rhythmic regulation range of the melanin ratio, the spectral value of the corresponding peak band of the ipRGCs response curve can be reduced, and the spectral value of the corresponding peak band of the photopic vision function can be increased; specifically, this can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the photopic vision response curve.

[0086] (2) When increasing the maximum value of the rhythmic regulation range of the melanin ratio, the spectral value of the peak band of the ipRGCs response curve is increased, and the spectral value of the peak band of the photopic vision function is decreased. To increase the maximum value of the rhythmic regulation range of the melanin ratio, the spectral value of the corresponding peak band of the ipRGCs response curve can be increased, and the spectral value of the corresponding peak band of the photopic vision function can be decreased; specifically, this can be achieved by replacing the light source with a spectral peak wavelength closer to the peak band of the ipRGCs response curve.

[0087] Therefore, the optimization module 4 starts from the melanin ratio calculation formula and adjusts the high rhythm and low rhythm respectively based on the ipRGCs response curve and the band tendency of the photopic vision function.

[0088] Accordingly, the present invention further discloses a computer device comprising a memory and a processor, wherein the memory stores a computer program, and wherein the processor, when executing the computer program, implements the steps of the aforementioned spectral base selection method. Furthermore, the present invention further discloses a computer-readable storage medium, storing the computer program thereon, and wherein the processor, when executing the computer program, implements the steps of the aforementioned spectral base selection method.

[0089] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for selecting a spectral base, characterized in that, Including: Combining a preset spectrum according to the number of target channels to construct multiple groups of multi-channel light source combinations; Calculating the adjustment indexes of each group of multi-channel light source combinations within a preset color temperature range, where the adjustment indexes include the rhythm regulation range of the melanin ratio, the luminous efficacy at the highest rhythm stimulation, the luminous efficacy at the lowest rhythm stimulation, and the color rendering index; Extracting the optimal multi-channel light source combination from multiple groups of multi-channel light source combinations according to the adjustment indexes; Optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

2. The spectral base selection method according to claim 1, wherein The method for extracting the optimal multi-channel light source combination from multiple groups of multi-channel light source combinations according to the adjustment indexes includes: When only considering the rhythm regulation range of the melanin ratio, the larger the rhythm regulation range of the melanin ratio, the better the corresponding multi-channel light source combination; When only considering the luminous efficacy at the highest rhythm stimulation, the higher the luminous efficacy at the highest rhythm stimulation, the better the corresponding multi-channel light source combination; When only considering the luminous efficacy at the lowest rhythm stimulation, the higher the luminous efficacy at the lowest rhythm stimulation, the better the corresponding multi-channel light source combination; When only considering the color rendering index, the larger the color rendering index, the better the corresponding multi-channel light source combination.

3. The spectral base selection method according to claim 1, characterized in that, Among the adjustment indexes, the importance of the rhythm regulation range of the melanin ratio is greater than the importance of the luminous efficacy at the highest rhythm stimulation and the importance of the luminous efficacy at the lowest rhythm stimulation.

4. The spectral base selection method according to claim 1, wherein The steps for optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function include: Adjusting the spectrum in the optimal multi-channel light source combination according to the band characteristics of the ipRGCs response curve and the photopic vision function to increase the rhythm regulation range of the melanin ratio.

5. The spectral base selection method according to claim 4, characterized in that, The steps for optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function include: When reducing the minimum value of the rhythm regulation range of the melanin ratio, reducing the spectral value of the peak band of the ipRGCs response curve and increasing the spectral value of the peak band of the photopic vision function.

6. The spectral base selection method according to claim 4, characterized in that, The steps for optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function include: When increasing the maximum value of the rhythm regulation range of the melanin ratio, increasing the spectral value of the peak band of the ipRGCs response curve and reducing the spectral value of the peak band of the photopic vision function.

7. The spectral base selection method according to claim 1, wherein When the number of target channels is 5, the optimized optimal multi-channel light source combination includes: White light with a main wavelength of 438 nm - 458 nm, a peak wavelength of 438 nm - 458 nm, and a full width at half maximum of 10 nm - 30 nm; Red light with a main wavelength of 622 nm - 642 nm, a peak wavelength of 623 nm - 643 nm, and a full width at half maximum of 10 nm - 30 nm; Green light with a main wavelength of 508 nm - 548 nm, a peak wavelength of 507 nm - 547 nm, and a full width at half maximum of 37 nm - 77 nm; Blue light with a main wavelength of 462 nm - 482 nm, a peak wavelength of 462 nm - 482 nm, and a full width at half maximum of 10 nm - 30 nm; Yellow light with a dominant wavelength of 601 nm to 621 nm, a peak wavelength of 604 nm to 624 nm, and a full width at half maximum of 20 nm to 60 nm.

8. A spectral base selection system, characterized in that, Including: A building block for combining a preset spectrum according to the number of target channels to construct multiple groups of multi-channel light source combinations; A calculation module for calculating the adjustment indexes of each group of multi-channel light source combinations within a preset color temperature range, where the adjustment indexes include the rhythm regulation range of the melanin ratio, the luminous efficacy at the highest rhythm stimulation, the luminous efficacy at the lowest rhythm stimulation, and the color rendering index; A screening module for extracting the optimal multi-channel light source combination from the multiple groups of multi-channel light source combinations according to the adjustment indexes; An optimization module for optimizing the optimal multi-channel light source combination according to the ipRGCs response curve and the photopic vision function.

9. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method described in any one of claims 1 to 7.

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