WO2015176668A1

WO2015176668A1 - Lamp control method, device and system

Info

Publication number: WO2015176668A1
Application number: PCT/CN2015/079453
Authority: WO
Inventors: 董建飞; 祁高进; 李琳琳; 张国旗
Original assignee: 常州市武进区半导体照明应用技术研究院
Priority date: 2014-05-21
Filing date: 2015-05-21
Publication date: 2015-11-26

Abstract

A lamp control method, device and system.The lamp control method comprises: acquiring a colour coordinate of a single-colour channel of a lamp (S302); acquiring a drive parameter of the single-colour channel of the lamp according to the colour coordinate of the single-colour channel of the lamp (S304); and controlling the lamp according to the drive parameter (S306). The present invention solves the problem in the prior art that the drive parameter configuration accuracy and efficiency of the lamp are low.

Description

Lamp control method, device and system

Technical field

The invention relates to the field of lamps, and in particular to a lamp control method, device and system.

Background technique

For luminaires with multiple different color channels, the adjustment of the driving parameters of each of the channels can be achieved by adjusting the light color or color coordinates of the illuminating light of the luminaire as a whole, and can pass each channel. The precise control of the drive parameters allows the color coordinates of the exiting light to accurately return to a certain target value.

In order to achieve this, a solution known to the inventors is to use a recursive method to constantly adjust the driving parameters of each channel according to the feedback of the color coordinates of the outgoing light until the color coordinates of the outgoing light reach a certain level. Up to the allowable range near the target color coordinates. However, in this way, it usually takes a long time to wait for the end of the repetitive adjustment process, and in some scenarios, the drive parameters obtained by feedback adjustment may not converge, that is, the color of the emitted light may occur. The coordinates revolve around the target color coordinates that need to be reached, but cannot always fall within the above allowable range.

Due to the difference in production process, the light efficiency, light color and electrical parameters of different light-emitting diode (LED) chips of the same batch and the same model are different. This results in different colors and intensities of illumination of different LED chips of the same type even under the same driving signal. Therefore, different LED chips of the same model need to be grouped before leaving the factory, which is called "bin".

In the actual operation process, the finer the bin operation, the smaller the color difference of the chip illumination in the same bin, and the higher the color identity of the different lamps formed by the chips in the bin. However, the drawback of this mode of operation is that the smaller the bin, the higher the cost of the chip. In general, in order to reduce the production cost, the luminaire manufacturers on the market do not choose the bins that are too subdivided, but instead choose the chips that are more roughly binned, that is, the same type of chips with different color differences. This will result in a very different color for the different luminaires made up of these chips. This color difference is obvious when multiple lamps are put together for lighting.

In view of the above problems, the prior art generally adopts the following scheme to color the lamps:

In the first scheme, the light color of the luminaire is adjusted manually. Specifically, comparing the color of the actual outgoing light of the luminaire to be configured with the standard color, and if it is found to be inconsistent with the standard color, adjusting each monochromatic pass in the luminaire to be configured The drive current of the track until the color of the actual outgoing light of the fixture to be configured matches the standard color. Obviously, this solution is not only inefficient, but also because the visual error is unavoidable, it is difficult to ensure the accuracy of the configured drive current.

In the second scheme, the light color of the luminaire is adjusted in a circular manner. Specifically, 1) comparing the actual color coordinates of the light of the emitted light of the luminaire to be configured with the target color coordinate to obtain the luminous flux ratio of each monochromatic channel of the luminaire to be configured; 2) determining the corresponding luminous flux ratio of each monochromatic channel The driving power, 3) use the corresponding driving power to drive each monochrome channel in the luminaire, and determine whether the color of the current outgoing light of the luminaire to be configured is consistent with the color corresponding to the target color coordinate, and if not, loop execution 1 ), 2), 3) until the two match. However, this solution needs to perform a loop configuration for each luminaire to be configured, so the efficiency is low, and in some scenarios, the driving parameters obtained by the cyclic adjustment may not converge, and thus cannot fall into the preset of the target driving parameters. Within the scope.

Since the related art only considers a control method of making the color of the mixed light of the plurality of channels reach the target color by adjusting the driving parameters of the respective monochrome channels in the luminaire. However, in the production and calibration process of the luminaire, there is a lack of a technical solution for statistical analysis of the light color parameters of the same type of monochrome channel or multi-color channel luminaire. The results of this statistical analysis can guide the luminaire design and manufacturer to make targeted modifications to the design of each monochromatic channel in the luminaire and the selection of LED chips, so that even the color consistency of the luminaires that are not processed by the calibration process is also The requirements can be met; in addition, the statistical results can also be used to test the quality of the tested luminaires, so as to timely filter out luminaires of unqualified quality.

For a white light fixture with adjustable color, usually three or more color light sources (such as color light-emitting diodes) are combined. In order to achieve the target color desired by the user, the luminous flux and optical power consumption of different colors can be adjusted. Reach the target color. In order to ensure that the luminaire after the target color can meet a certain luminous flux or power consumption, the existing technical solutions are usually adjusted as follows:

Technical Solution 1: First, determine the color coordinates of the five channels P1, P2, P3, P4, and P5 in the color gamut in the color gamut of the luminaire on the CIE1931 chromaticity diagram shown in FIG. 1, and then draw an auxiliary point P ₀ . The target color point is within a triangle consisting of P ₀ and the color points of the other two colored light sources. The color combination of P ₀ is obtained by the channel ratio corresponding to different color points, and the relationship between P ₀ and the intensity of the color light source represented by the remaining two vertices of the triangle is determined by an additional linear combination principle, thereby obtaining the target color. Brightness combination.

In determining P _0, P ₀ will typically click on or near the black body radiation curve curve can be determined by querying the data corresponding to the color of the point P _0, 2, want to get the maximum color rendering index can select Q _0, like To get the maximum luminous efficiency, you can choose Q ₂ , and you want to choose both Q ₁ , that is, adjust the luminous flux or power consumption on the premise of achieving the target color combination.

Technical Solution 2: For a luminaire with four colors in the luminaire, the luminous flux can also be adjusted by setting a primary target and a secondary target. The luminaire controller has a matrix multiplication module that calculates the linear relationship between the drive signal vector and the vector of the primary target and the secondary target. For example, the lamp has four channels of RGBW, the primary target is the tristimulus value XYZ of the luminaire color, and the secondary target is the total power consumption P. The linear relationship between the PWM of the four channels and the primary target can be obtained by calibration. The matrix M in the following equation is the calibration matrix.

Since the PWM limit is between 0 and 100, as long as the tristimulus value XYZ is fixed, the range of the secondary target, that is, the power consumption, can be obtained. Through calculation and analysis, the power consumption and luminous flux of the luminaire can be adjusted under the premise of ensuring that the luminaire adjusts the color of the light required by the user through the color of the four channels.

In the prior art, when the energy consumption and the luminous flux of the lamp are adjusted by the above two technical solutions, the technical solution 1 needs to traverse all the color points before the adjustment, and store the data of the color point in the memory, and then ask the user to determine the auxiliary point and then The power consumption or luminous flux of the luminaire is adjusted. This method has high requirements on the user's knowledge and skills, and is inconvenient to use. The parameter matrix established for the four-channel luminaire in the technical scheme 2 is an invertible matrix, and an additional target value is needed to obtain the PWM value corresponding to each channel through the inverse matrix of the parameter matrix. If the number of channels in the luminaire is greater than four, there is no guarantee that the parameter matrix is reversible. Therefore, for luminaires with more than four color channels, the above methods cannot be used to adjust the luminous flux and power consumption of the luminaire.

In view of the problem of low precision and low efficiency of driving parameter configuration of lamps in the prior art, an effective solution has not been proposed yet.

Summary of the invention

The embodiment of the invention provides a method, a device and a system for controlling a lamp to solve at least the technical problem of low precision and low efficiency of driving parameter configuration of the lamp in the prior art.

According to an aspect of the embodiments of the present invention, a luminaire control method includes: acquiring color coordinates of a monochrome channel of a luminaire; obtaining driving parameters of a monochrome channel of the luminaire according to color coordinates of a monochrome channel of the luminaire; The luminaire is controlled.

Further, the luminaire control method is a driving method of the luminaire, wherein: acquiring color coordinates of the monochrome channel of the luminaire comprises: acquiring color coordinates of each of the plurality of monochrome channels, wherein the luminaire comprises a plurality of monochrome channels, and The emitted light of the luminaire is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels; the driving parameters of the monochromatic channel of the luminaire are obtained according to the color coordinates of the monochromatic channel of the luminaire, including: the target color coordinate of the outgoing light and the color of each channel The coordinates acquire the target illuminance of each channel; obtain the driving parameters of each channel corresponding to the target illuminance of each channel; controlling the luminaire according to the driving parameters includes: driving each channel by using the obtained driving parameters of each channel .

Further, acquiring driving parameters of each channel corresponding to the target illuminance of each channel comprises: fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values corresponding to each channel acquired in advance, wherein The plurality of driving parameter sample values are in one-to-one correspondence with the plurality of illuminance sampling values; the correspondence relationship between the driving parameters corresponding to each channel and the target illuminance is obtained according to the result of the fitting process; and each channel is obtained according to the corresponding relationship The target illuminance corresponds to the drive parameters of each channel.

Further, before fitting the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel acquired in advance, the lamp control method further comprises: selecting a plurality of drivers corresponding to each channel Parameter sample value; each channel is driven using each of the drive parameter sample values; when each channel is driven using each drive parameter sample value, the current illuminance of each channel is obtained as The illuminance sample value corresponding to each drive parameter sample value.

Further, acquiring color coordinates of each of the plurality of monochrome channels includes: acquiring, when each channel is driven by using each driving parameter sample value, acquiring current color coordinates of each channel; The average of the plurality of current color coordinates acquired under the sampled value is taken as the color coordinate of each channel.

Further, the fitting processing of the plurality of driving parameter sample values and the plurality of illuminance sampling values corresponding to each channel acquired in advance comprises: linearly fitting the plurality of driving parameter sample values and the plurality of illuminance sampling values; Obtaining a correspondence between the driving parameter corresponding to each channel and the target illuminance according to the result of the fitting process includes: obtaining a correspondence according to a result of the linear fitting: E=p*c+E ₀ , wherein E represents each The target illuminance of each channel, c represents the driving parameter of each channel, p and E ₀ are constant coefficients; obtaining the driving parameters of each channel corresponding to the target illuminance of each channel according to the corresponding relationship includes: acquiring each according to the following calculation formula Drive parameters for each channel: c = (EE ₀ ) / p.

Further, fitting the plurality of driving parameter sample values and the plurality of illuminance sampling values corresponding to each channel acquired in advance comprises: using the interpolation method to simulate the plurality of driving parameter sample values and the plurality of illuminance sampling values Combining processing; obtaining a correspondence relationship between the driving parameter corresponding to each channel and the target illuminance according to the result of the fitting processing includes: obtaining a correspondence according to the result of the fitting processing: E=(E ₂ -E ₁ )*( Cc ₁ )/(c ₂ -c ₁ )+E ₁ , where E represents the target illuminance of each channel, c represents the drive parameter of each channel, and c ₁ represents one of the plurality of drive parameter sample values and c ₁ <c, c ₂ represents one of a plurality of drive parameter sample values and c ₂ >c, E ₁ represents one of the plurality of illuminance sample values corresponding to c ₁ , and E ₂ represents a plurality of illuminance sample values corresponding to c ₂ One of obtaining the driving parameters of each channel corresponding to the target illuminance of each channel according to the corresponding relationship includes: obtaining driving parameters of each channel according to the following calculation formula: c=(c ₂ -c ₁ )*(EE ₁ ) /(E _2- E ₁ )+c ₁ .

Further, acquiring the target illuminance of each channel according to the target color coordinate of the emitted light and the color coordinate of each channel includes: generating a color mixing region with the color coordinates of each channel as a vertex in the preset color coordinate space; The coordinates are located in the color mixing region, and the illuminance ratio of each channel is obtained according to the relative positional relationship between the target color coordinates and the color coordinates of each channel; the product of the illuminance sum of the outgoing light and the illuminance ratio of each channel is taken as per The target illumination of the channels.

Further, acquiring the target illuminance of each channel according to the target color coordinates of the emitted light and the color coordinates of each channel comprises: selecting a plurality of target color coordinates; according to each of the plurality of target color coordinates and the color coordinates of each channel Obtaining the target illuminance of each channel corresponding to each one; acquiring driving parameters of each channel corresponding to the target illuminance of each channel includes: acquiring driving parameters of each channel under each one as each channel and each A corresponding driving parameter is recorded, and the obtained corresponding driving parameters are recorded in the data table; driving each channel by using the obtained driving parameter of each channel includes: determining a target color coordinate that the outgoing light currently needs to reach; Find the drive parameters corresponding to each channel and the target color coordinates that need to be reached in the data table; drive each channel using the found drive parameters.

Further, the luminaire control method is a statistical method of the light color parameter, wherein: obtaining color coordinates of the monochrome channel of the luminaire comprises: respectively acquiring color coordinates of each monochrome channel of each of the plurality of luminaires and each single of the plurality of luminaires The mean value and covariance of the color coordinates of the color channel; obtaining the driving parameters of the monochrome channel of the lamp according to the color coordinates of the monochrome channel of the lamp includes: determining the mean and covariance of the color coordinates of each of the monochrome channels of the plurality of lamps Whether each of the monochrome channels corresponding to the one or more luminaires performing the calibration process meets a preset condition; and controlling the luminaire according to the driving parameters includes: according to each of the plurality of luminaires corresponding to the preset condition, each of the monochrome channels of the luminaire The color coordinates determine the common color gamut range of multiple fixtures.

Further, determining the common color gamut range comprises: determining a color gamut polygon of each luminaire according to color coordinates of each monochrome channel of each luminaire; and obtaining a common gamut polygon of n luminaires according to the value of n from small to large The intersection of the gamut polygons of the n+1th luminaire as the common color gamut of n+1 luminaires until a common gamut range is obtained, where n is a positive integer greater than or equal to 1, and when n is equal to 1, The common gamut polygon of one luminaire is taken as the gamut polygon of the first luminaire.

Further, according to the mean value and the covariance of the color coordinates of the respective monochrome channels of the plurality of lamps, determining whether each of the monochrome channels corresponding to the one or more lamps that are subjected to the scaling process meets the preset condition includes: acquiring the jth The color coordinates of the ith monochrome channel of the fixture, and is set to

Calculate the statistic according to the following formula:

among them

Indicates the mean of the color coordinates of the i-th monochrome channel of the N lamps that have been counted,

The covariance of the color coordinates of the i-th monochrome channel representing the N lamps,

Express

Inverse matrix;

Compare with the preset threshold T, if

If it is greater than T, it means

The corresponding luminaire does not meet the preset condition, where T is a threshold obtained according to a preset confidence.

Further, after determining whether the corresponding respective monochrome channels of the one or more luminaires after the calibration process are subjected to the calibration process meet the preset condition, the luminaire control method further includes: in the process of acquiring the public gamut range, Get the gamut polygon of the luminaire that will be judged not to meet the preset conditions.

Further, the color coordinate of each of the monochrome channels of each of the luminaires is an average of the multiple measurements of the color coordinates of the monochromatic channel of the luminaire.

Further, the luminaire control method is a luminaire adjustment method, and the luminaire includes at least three optical channels, wherein: obtaining color coordinates of the monochrome channel of the luminaire comprises: obtaining a first preset correspondence relationship between the total luminous flux of the luminaire and the driving parameter, wherein The luminous flux is the sum of the luminous fluxes of the at least three optical channels; obtaining a second preset correspondence between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire as the target color; and obtaining the maximum luminous flux of each optical channel in the luminaire Obtaining a range of driving parameters; obtaining driving parameters of the monochrome channel of the luminaire according to color coordinates of the monochrome channel of the luminaire, including: according to the first preset correspondence, the second preset correspondence, the maximum luminous flux of each optical channel, and the driving parameter The range is obtained by driving parameter values that cause the total luminous flux to reach a preset condition; controlling the luminaire according to the driving parameter includes: adjusting the luminaire by using the driving parameter value.

Further, the first preset correspondence satisfies the total luminous flux of the luminaire reaches a maximum value, and the total luminous flux is obtained according to the first preset correspondence relationship, the second preset correspondence relationship, the maximum luminous flux of each optical channel, and the range of driving parameters. The driving parameter value that reaches the preset condition includes: when the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence relationship, the second preset correspondence relationship, and the range of the driving parameter, the first is obtained. When the driving parameter value drives the luminaire to reach the target color, the total luminous flux reaches a maximum value, wherein the optical channel i is any one of the at least three optical channels.

Further, according to the first preset correspondence, the second preset correspondence, the maximum luminous flux of each optical channel, and the range of the driving parameters, the driving parameter values that enable the total luminous flux to reach the preset condition include: obtaining the maximum power of the luminaire The actual power consumption of the luminaire is obtained, wherein the actual power consumption is the sum of the power consumption of each optical channel when the luminaire reaches the target color; the actual power consumption of the luminaire is less than or equal to the maximum power consumption, and the actual luminous flux of the optical channel i is less than When the maximum luminous flux of the optical channel i is equal to the first preset correspondence, the second preset correspondence, and the range of the driving parameters, the second driving parameter value is obtained to drive the luminaire to reach the target color, and the actual power consumption does not exceed the maximum luminaire. Power consumption, and the total luminous flux of the luminaire reaches a maximum.

Further, according to the first preset correspondence relationship, the second preset correspondence relationship, the maximum luminous flux of each optical channel, and the range of the driving parameters, the driving parameter values that enable the total luminous flux to reach the preset condition include: obtaining the target color of the light fixture The minimum target luminous flux; the third preset correspondence relationship between the actual power consumption of the luminaire and the driving parameter, wherein the actual power consumption is the sum of the power consumption of each optical channel when the luminaire reaches the target color, and the third preset correspondence satisfies the luminaire The actual power consumption is the minimum value in the target color; when the total luminous flux is greater than or equal to the minimum target luminous flux, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence relationship and the second preset correspondence relationship And a third preset correspondence relationship and a range of driving parameters to obtain a third driving parameter value, wherein the third driving parameter value is used to drive the luminaire such that the actual power consumption of the luminaire for the target color is a minimum value and the total luminous flux is greater than or equal to the minimum target luminous flux .

Further, the luminaire control method further includes: acquiring an optical radiant flux of any one of the at least three optical channels; acquiring a fourth preset correspondence relationship between the optical radiant flux and the driving parameter, wherein the fourth preset correspondence relationship And limiting the optical radiant flux to a predetermined range, wherein, according to the first preset correspondence relationship, the second preset correspondence relationship, the fourth preset correspondence relationship, the maximum luminous flux of each optical channel, and the range of driving parameters, A four drive parameter value, wherein the luminaire is driven with the fourth drive parameter value such that the radiant flux of the luminaire is within a predetermined range.

According to another aspect of the embodiments of the present invention, a luminaire control apparatus includes: a first acquisition total module for acquiring color coordinates of a monochrome channel of a luminaire; and a second acquisition total module for illuminating a monochrome channel according to the luminaire The color coordinates obtain the driving parameters of the monochrome channel of the luminaire; and the control total module is used to control the luminaire according to the driving parameters.

Further, the luminaire control device is a driving device of the luminaire, wherein: the first acquisition total module includes: a first acquiring unit, configured to acquire color coordinates of each of the plurality of monochrome channels, wherein the luminaire includes multiple orders a color channel, and the emitted light of the luminaire is a superposition of monochromatic light emitted by each of the plurality of monochrome channels; the second acquisition total module includes: a second acquisition unit for arranging the target color coordinates of the outgoing light and the color of each channel The coordinates acquire the target illuminance of each channel; the third obtaining unit is configured to acquire driving parameters of each channel corresponding to the target illuminance of each channel; and the control total module includes: a first driving unit, configured to use each acquired The drive parameters of the channel drive each channel.

Further, the third obtaining unit includes: a fitting module, configured to perform a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel acquired in advance, wherein the plurality of driving parameter samples are respectively sampled The value is in one-to-one correspondence with the plurality of illuminance sample values; the first obtaining module is configured to obtain a correspondence between the driving parameter corresponding to each channel and the target illuminance according to the result of the fitting process; and the second acquiring module is configured to: The driving parameters of each channel corresponding to the target illuminance of each channel are acquired according to the correspondence relationship.

Further, the luminaire control apparatus further includes: a selecting unit configured to select a plurality of driving parameter sampling values corresponding to each channel; and a second driving unit configured to use each of the plurality of driving parameter sampling values to sample The value is driven for each channel; the fourth obtaining unit is configured to acquire the current illuminance of each channel as the illumination sample corresponding to each driving parameter sample value when each channel is driven by using each driving parameter sample value value.

Further, the first obtaining unit includes: a third acquiring module, configured to acquire a current color coordinate of each channel when each channel is driven by using each driving parameter sample value; and a first processing module, configured to be The average of the plurality of current color coordinates acquired under the plurality of drive parameter sample values is used as the color coordinate of each channel.

Further, the fitting module includes: a first fitting sub-module, configured to linearly fit the plurality of driving parameter sample values and the plurality of illuminance sampling values; the first obtaining module includes: a first processing sub-module, configured to The result of linear fitting obtains the corresponding relationship: E=p*c+E ₀ , where E represents the target illuminance of each channel, c represents the driving parameter of each channel, p and E ₀ are constant coefficients; second acquisition module The method includes: a second processing submodule, configured to obtain a driving parameter of each channel according to the following calculation formula: :c=(EE ₀ )/p.

Further, the fitting module includes: a second fitting sub-module, configured to perform fitting processing on the plurality of driving parameter sample values and the plurality of illuminance sampling values by using an interpolation method; the first obtaining unit includes: a third processing sub-module, For obtaining a correspondence according to the result of the fitting process: E=(E ₂ -E ₁ )*(cc ₁ )/(c ₂ -c ₁ )+E ₁ , where E represents the target illuminance of each channel, c Representing the drive parameter of each channel, c ₁ represents one of a plurality of drive parameter sample values and c ₁ <c, c ₂ represents one of a plurality of drive parameter sample values and c ₂ >c, and E ₁ represents a plurality of illuminances One of the sample values corresponding to c ₁ , E ₂ represents one of the plurality of illuminance sample values corresponding to c ₂ ; the second acquisition module includes: a fourth processing sub-module configured to acquire the drive of each channel according to the following calculation formula Parameters: c = (c _{2 -} c ₁ ) * (EE ₁ ) / (E _{2 -} E ₁ ) + c ₁ .

Further, the second obtaining unit includes: a generating module, configured to generate a color mixing region with the color coordinates of each channel as a vertex in the preset color coordinate space; and a fourth acquiring module, configured to: the target color coordinate is located in the color mixing region Obtain a photo of each channel according to the relative positional relationship between the target color coordinates and the color coordinates of each channel. The second processing module is configured to use the product of the illuminance sum of the outgoing light and the illuminance ratio of each channel as the target illuminance of each channel.

Further, the second obtaining unit includes: a selecting module, configured to select a plurality of target color coordinates; and a fifth acquiring module, configured to acquire each phase according to each of the plurality of target color coordinates and the color coordinates of each channel Corresponding target illumination of each channel; the third obtaining unit comprises: a third processing module, configured to acquire driving parameters of each channel as driving parameters corresponding to each channel and each one, and obtain the driving parameters The corresponding driving parameters are recorded in the data table; the first driving unit includes: a determining module for determining a target color coordinate that the outgoing light currently needs to reach; a searching module for searching and matching each channel in the data table The target color coordinates are corresponding to the driving parameters; the driving module is used to drive each channel using the found driving parameters.

Further, the luminaire control device is a statistical device of the light color parameter, wherein: the first acquisition total module comprises: an acquisition module, configured to respectively acquire color coordinates of each monochrome channel of each of the plurality of luminaires and a plurality of luminaires The mean value and covariance of the color coordinates of each of the monochrome channels; the second acquisition total module includes: a judging module, configured to determine the calibration and the covariance according to the color coordinates of the respective monochrome channels of the plurality of lamps Whether the respective monochrome channels corresponding to the one or more luminaires meet the preset condition; the control total module includes: a processing module, configured to determine, according to color coordinates of each of the plurality of luminaires of each of the plurality of luminaires that meet the preset condition The common color gamut range of multiple fixtures.

Further, the processing module includes: a determining unit, configured to determine a gamut polygon of each luminaire according to color coordinates of each monochrome channel of each luminaire; and an acquiring unit configured to sequentially acquire n according to a value of n The intersection of the common color gamut polygon of the luminaire and the gamut polygon of the n+1th luminaire is used as the common color gamut of n+1 luminaires until a common gamut range is obtained, where n is a positive integer greater than or equal to 1. And when n is equal to 1, the common gamut polygon of one luminaire is taken as the gamut polygon of the first luminaire.

Further, the determining module includes: a setting unit, configured to acquire color coordinates of the ith monochrome channel of the jth luminaire, and set

A calculation unit for calculating statistics according to the following formula:

among them,

Express

Inverse matrix; comparison unit for

Compare with the preset threshold T, if

If it is greater than T, it means

Further, the luminaire control device is a luminaire adjustment device, and the luminaire comprises at least three optical channels, wherein: the first acquisition total module comprises: a first acquisition unit, configured to acquire a first preset correspondence between the total luminous flux of the luminaire and the driving parameter The total luminous flux is the sum of the luminous fluxes of the at least three optical channels; the second obtaining unit is configured to obtain a second preset correspondence between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire to the target color a third obtaining unit, configured to obtain a maximum luminous flux of each optical channel in the luminaire; a fourth acquiring unit, configured to obtain a range of driving parameters; and a second acquiring total module, comprising: a solving unit, configured to correspond to the first preset The relationship between the relationship, the second preset correspondence, the maximum luminous flux of each optical channel, and the driving parameter, obtains a driving parameter value that causes the total luminous flux to reach a preset condition; and the control total module includes: an adjusting unit configured to utilize the driving parameter value Adjust the luminaire.

Further, the first preset correspondence satisfies the total luminous flux of the luminaire to reach a maximum value, and the solving unit includes: a first solving module, configured to: when the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first pre- The corresponding relationship, the second preset correspondence, and the range of the driving parameters are set, and when the first driving parameter value is obtained to drive the luminaire to reach the target color, the total luminous flux reaches a maximum value, wherein the optical channel i is any one of the at least three optical channels. Light channel.

Further, the solution unit includes: a first acquisition module, configured to obtain a maximum power consumption of the luminaire; and a second acquisition module, configured to acquire actual power consumption of the luminaire, wherein the actual power consumption is each optical channel when the luminaire reaches the target color. The sum of the power consumptions; the second solution module is configured to: when the actual power consumption of the luminaire is less than or equal to the maximum power consumption, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, The second preset correspondence and the range of the driving parameters obtain the second driving parameter value to drive the actual power consumption of the luminaire to reach the target color does not exceed the maximum power consumption of the luminaire, and the total luminous flux of the luminaire reaches a maximum value.

Further, the solving unit includes: a third acquiring module, configured to acquire a minimum target luminous flux of the luminaire; and a fourth acquiring module, configured to acquire a third preset correspondence relationship between the actual power consumption of the luminaire and the driving parameter, wherein the actual power consumption For the sum of the power consumption of each optical channel when the luminaire reaches the target color, the third preset correspondence satisfies the minimum value of the actual power consumption when the luminaire is the target color; and the third solution module is configured to use the total luminous flux equal to or greater than the minimum target luminous flux, And the third driving parameter value is obtained according to the first preset correspondence, the second preset correspondence, the third preset correspondence, and the range of the driving parameter, when the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, Wherein, the luminaire is driven by the third driving parameter value such that the actual power consumption of the luminaire for the target color is a minimum value and the total luminous flux is greater than or equal to the minimum target luminous flux.

Further, the luminaire control device further includes: a fifth acquiring unit, configured to acquire optical radiant flux of any one of the at least three optical channels; and a sixth acquiring unit, configured to acquire the radiant flux and the driving parameter a fourth preset correspondence, wherein the fourth preset correspondence is used to limit the optical radiant flux to be in a predetermined range, wherein, according to the first preset correspondence, the second preset correspondence, the fourth preset correspondence, each The maximum luminous flux and the range of the driving parameters of the optical channels obtain a fourth driving parameter value, wherein the fourth driving parameter value is used to drive the luminaire such that the illuminating flux of the luminaire is within a predetermined range.

Further, the luminaire control device is a configuration device of the luminaire driving parameter, configured to configure driving parameters for the luminaire, the luminaire has a plurality of monochromatic channels, and the emitted light of the luminaire is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels. Wherein: the control total module comprises: a control component, configured to acquire a target color coordinate of the emitted light and a color coordinate of each of the plurality of monochrome channels, and determine the color coordinate based on the target color coordinate and each monochrome channel; The target illuminance of each monochrome channel, and the target drive parameters of each monochrome channel are determined based on the target illuminance of each monochrome channel, and the target drive parameters of each monochrome channel are configured to the luminaire.

Further, the control component includes: a first communication module, configured to acquire a plurality of driving parameter sample values and a plurality of illuminance sample values corresponding to each of the monochrome channels, wherein the plurality of driving parameter sample values and the plurality of illuminance samples a value-to-one correspondence; a processor, configured to fit a plurality of driving parameter sample values and a plurality of illuminance sample values corresponding to each of the monochrome channels to obtain a fitting result, and determine and each based on the fitting result a mapping relationship between the driving parameters and the illuminance corresponding to the monochrome channel, and determining a target driving parameter corresponding to the target illuminance of each of the monochrome channels based on the mapping relationship; and a second communication module for each single The target drive parameters of the color channel are configured for the luminaire.

Further, the luminaire control device further includes: a light shielding component, the light shielding space inside the light shielding component is used for setting the luminaire, and the luminaire is configured to receive the plurality of driving parameter sampling values corresponding to each of the monochrome channels, and the plurality of driving parameter sampling values Each drive parameter sample value is used to drive each of the monochrome channels; and the measurement component is disposed in the light-shielding space and connected to the control component for sampling each of the drive parameter values for each of the monochrome channels When driving, measuring a current illuminance value of each monochrome channel, and using the current illuminance value as an illuminance sampling value corresponding to each driving parameter sample value, wherein the first communication module is further configured to acquire the measured component and the measured component The illuminance sample value corresponding to each drive parameter sample value of each monochrome channel.

Further, the first communication module is further configured to acquire, when each driving parameter sample value is driven for each monochrome channel, a plurality of current color coordinates of each of the monochrome channels under the plurality of driving parameter sample values; and processing The device is also used to average a plurality of current color coordinates, obtain an average of a plurality of current color coordinates, and use the average value as the color coordinates of each monochrome channel.

Further, the fitting result is a result obtained by a linear fitting method or a result obtained by an interpolation method.

Further, the control unit determines the target illuminance of each of the monochrome channels based on the target color coordinates and the color coordinates of each of the monochrome channels by generating color coordinates of each of the monochrome channels as vertices in the preset color coordinate space. The color mixing area; determining whether the target color coordinate is in the color mixing area; if it is determined that the target color coordinate is in the color mixing area, determining the illumination of each monochrome channel based on the positional relationship between the target color coordinate and the color coordinate of each monochrome channel Ratio; calculate the product of the total illuminance of the emitted light and the illuminance ratio; and use the product as the target illuminance for each monochromatic channel.

Further, the target color coordinate includes a plurality, and the control component is further configured to acquire each target color coordinate of the plurality of target color coordinates, and determine each target based on each target color coordinate and color coordinates of each monochrome channel. a target illuminance of each of the monochrome channels corresponding to the color coordinates, and determining a target of each of the monochrome channels corresponding to each of the target color coordinates based on the target illuminance of each of the monochrome channels corresponding to each of the target color coordinates Driving parameters, and storing target driving parameters of each monochrome channel corresponding to each target color coordinate into the data table, and target driving parameters of each monochrome channel corresponding to each target color coordinate The form of the data sheet is configured for the luminaire.

Further, the control component is a cloud server.

Further, the luminaire control device further includes: a detecting component disposed in the opaque space for detecting an ambient temperature in the opaque space; and an adjusting component for adjusting an ambient temperature in the opaque space, wherein the control component is connected to the detecting component Between the adjusting component and the adjusting component, the detected ambient temperature is controlled, and the operating state of the adjusting component is controlled according to the detected ambient temperature.

Further, the detecting component comprises: a thermocouple for setting on the first side of the light source panel of the luminaire, and collecting the temperature of the luminaire, wherein the LED chip is disposed on the first side, and the adjusting component comprises: cooling or manufacturing a heat device for being disposed on the second side of the light source panel and performing a cooling process or a heat treatment on the luminaire, wherein the control component is connected between the thermocouple and the refrigerating or heating device for acquiring the collected temperature And according to the collected temperature, the refrigeration or heating device is controlled to perform cooling treatment or heat treatment on the lamps.

According to another aspect of the embodiments of the present invention, there is also provided a lamp control system, wherein the lamp control system is a configuration system of lamp driving parameters, configured to configure corresponding driving parameters for each of the plurality of lamps, each of the plurality of lamps A plurality of monochromatic channels, and the emitted light of each of the lamps is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels, including: a light shielding member in the lamp control device, wherein the light shielding member includes a plurality of The component is in one-to-one correspondence with the luminaire; the measuring component in the luminaire control device, wherein the measuring component comprises a plurality of measuring components and the light shielding component are in one-to-one correspondence; and the control component in the luminaire control device is used for the plurality of Each luminaire in the luminaire is configured with corresponding drive parameters.

Through the invention, the color coordinates of each of the plurality of monochrome channels of the luminaire are obtained, the driving parameters of each monochromatic channel of the luminaire are calculated according to the color coordinates of each monochromatic channel, and the luminaire is controlled according to the driving parameter. Adjustment. The invention solves the problem that the driving parameter configuration precision and the efficiency of the lamp in the prior art are low, and achieves the technical effect of improving the precision of the lamp driving parameter configuration and improving the control efficiency of the lamp.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of drawing auxiliary points in a color gamut according to the prior art;

2 is a schematic diagram of a light color index corresponding to a color point according to the prior art;

3 is a flow chart of a method of controlling a luminaire according to an embodiment of the present invention;

4 is a flow chart of a method of driving a luminaire according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a color space and color coordinates according to an embodiment of the present invention; FIG.

6 is a schematic diagram showing a fitting result between a driving parameter of a monochrome channel and a target illuminance according to the first embodiment of the present invention;

7 is a schematic diagram showing a fitting result between a driving parameter of a monochrome channel and a target illuminance according to a second embodiment of the present invention;

8 is a flow chart of a statistical method of light color parameters according to an embodiment of the present invention;

9 is a schematic illustration of a common color gamut range of different luminaires in accordance with a preferred embodiment of the present invention;

10 is a flow chart of a method of obtaining a common color gamut range of different luminaires in accordance with a preferred embodiment of the present invention;

11 is a schematic diagram of determining whether each of the monochrome channels of a luminaire is qualified by using a chi-square test according to a preferred embodiment of the present invention;

12 is a flow chart of a method of adjusting a luminaire according to an embodiment of the present invention;

Figure 13 is a schematic illustration of a gamut of a luminaire in accordance with an embodiment of the present invention;

Figure 14 is a schematic illustration of a luminaire control apparatus in accordance with an embodiment of the present invention;

Figure 15 is a schematic illustration of a driving device of a luminaire according to an embodiment of the present invention;

16 is a schematic diagram of a statistical device for light color parameters according to an embodiment of the present invention;

17 is a schematic diagram of a statistical device for light color parameters in accordance with a preferred embodiment of the present invention;

Figure 18 is a schematic illustration of a luminaire adjusting device in accordance with an embodiment of the present invention;

19 is a schematic diagram of a configuration apparatus of a lamp driving parameter according to an embodiment of the present invention;

Figure 20 is a schematic illustration of a light fixture in accordance with a first embodiment of the present invention;

Figure 21 is a schematic illustration of a luminaire in accordance with a second embodiment of the present invention;

Figure 22 is a schematic illustration of the structure of a control unit in accordance with an embodiment of the present invention;

23 is a schematic diagram of a configuration apparatus of a preferred lamp driving parameter according to an embodiment of the present invention;

Figure 24 is a schematic illustration of the structure of a measuring component in accordance with an embodiment of the present invention;

Figure 25 is a schematic illustration of an alternative color space and color coordinates in accordance with an embodiment of the present invention;

26 is a schematic diagram showing a linear method fitting result of a driving parameter sample value and an illuminance sampling value according to the first embodiment of the present invention;

27 is a schematic diagram showing an interpolation result of an interpolation of a driving parameter sample value and an illuminance sampling value according to a second embodiment of the present invention;

28 is a schematic diagram of another preferred luminaire drive parameter configuration apparatus in accordance with an embodiment of the present invention;

29 is a schematic diagram of a combined structure using a thermocouple and a refrigerating or heating device according to an embodiment of the present invention;

Figure 30 is a schematic illustration of a separate structure employing a thermocouple and a refrigerating or heating device in accordance with an embodiment of the present invention;

31 is a schematic diagram of a luminaire control system in accordance with an embodiment of the present invention.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

The embodiment of the present invention provides a luminaire control method, and FIG. 3 is a flowchart of a luminaire control method according to an embodiment of the present invention. As shown in FIG. 3, the luminaire control method includes:

Step S302, obtaining color coordinates of the monochrome channel of the luminaire.

Step S304, obtaining driving parameters of the monochrome channel of the lamp according to the color coordinates of the monochrome channel of the lamp.

Step S306, the luminaire is controlled according to the driving parameters.

The lamp control method of the embodiment obtains the driving parameters of the monochrome channel of the lamp by using the color coordinates of the monochrome channel of the lamp, and controls the lamp according to the driving parameter, thereby solving the problem that the driving parameter configuration precision and efficiency of the lamp in the prior art are low. In turn, the technical effect of improving the control efficiency of the lamp and improving the accuracy of the configuration parameters of the lamp driving is achieved.

Example 1

The luminaire control method of this embodiment is a driving method of the luminaire, and FIG. 4 is a flowchart of a driving method of the luminaire according to the embodiment of the present invention. As shown in FIG. 4, the driving method of the luminaire includes:

S402: Acquire color coordinates of each of the plurality of monochrome channels, wherein the luminaire comprises a plurality of monochrome channels, and the emitted light of the luminaire is a superposition of monochromatic light emitted by each of the plurality of monochrome channels;

S404: Obtain a target illuminance of each channel according to a target color coordinate of the emitted light and a color coordinate of each channel;

S406: Acquire driving parameters of each channel corresponding to target illuminance of each channel;

S408: Drive each channel by using the acquired driving parameters of each channel.

It should be clear that one of the problems to be solved by embodiments of the present invention is to provide a method for facilitating the overall output of the luminaire by driving each of the luminaires including a plurality of monochromatic channels. The light color or the color coordinate of the emitted light is adjusted, and the color coordinates of the outgoing light can be accurately returned to a certain target value by precise control of the driving parameters of each channel.

In order to solve the above problem, in the embodiment of the present invention, the color coordinates of each monochromatic channel in the luminaire are measured first, and then the chromaticity principle is used to calculate each of the required light for the illuminating light of the luminaire to reach the target color coordinate. The target illuminance of each channel, and then use the driving model established for each monochrome channel, that is, the correspondence between the driving parameters of each channel and the target illuminance to match the driving parameters required for each channel, and then Each of these channels can be driven separately using these drive parameters to complete the drive of the luminaire and to achieve the target color coordinates of the luminaire as a whole. In the embodiment of the present invention, the control of each channel and its driving parameters based on the target color coordinates is open-loop, thereby eliminating the process of feedback adjustment, which can speed up the adjustment speed and improve the adjustment efficiency, thereby solving the existing The solution takes longer to adjust the luminaire with multiple different color channels.

Further, in the embodiment of the present invention, the calibration of the luminaire can also be completed in a similar manner, that is, by setting the target color coordinate and recording the driving parameters acquired based on the target color coordinate into the data table, The mapping relationship between the target color coordinates and the driving parameters is calibrated before the lamp is shipped, and the recorded data table can be stored in the controller of the luminaire, so that the luminaire can be quickly utilized in the actual use process by using the pre-stored data table. The query obtains the driving parameters of each channel that match the target color coordinates that it needs to achieve, thereby achieving the effect of further accelerating the adjustment speed of the light emitted by the luminaire, and reducing the computing power of the controller of the luminaire. Claim.

The technical solutions of the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 4, according to the driving method of the luminaire provided by the embodiment of the present invention, in step S402, the color coordinates of each of the plurality of monochrome channels may be acquired, wherein the luminaire includes the plurality of monochrome channels. And the emitted light of the luminaire includes a superposition of monochromatic light emitted by each of the plurality of monochrome channels.

In general, the human eye's visual system has photoreceptors, ie, cones, for the short (420-440 nm), medium (530-540 nm), and long (560-580 nm) bands, so for a certain luminaire, The color that the emitted light is recognized by the human eye can be described based on the stimulation ratio of the three cones. Specifically, three main colors can be defined first, and then the color superimposition model is used to adjust the respective outputs of the three colors, so that various colors can be expressed by superimposing the three colors. With the above principle, a luminaire having a plurality of monochromatic channels as a whole can express light colors other than the color of the monochromatic channel itself by superposition of light of a plurality of channels, for example, the plurality of monochromatic channels can include : red light channel, green light channel and blue light channel, however, the invention is not limited thereto, and the combination of two or more single color channels of other colors can achieve the effect of combining different light colors, which does not affect the present invention. The implementation of the technical solutions and the realization of the technical effects thereof, and similar embodiments are considered to be within the scope of the present invention.

More specifically, in the embodiment of the present invention, color coordinates may be used to describe the color of the light emitted by the luminaire and each of the monochromatic channels. In other words, the color coordinates are in the form of parameter values. An expression of color. Generally, the color coordinates can be located in the color space, and the coordinate values can generally be used to describe the degree of stimulation of a certain color to different cones of the human eye, or tristimulus values. For example, for the CIE 1931 color space known to those skilled in the art, the three main colors defined are similar to red, green, and blue, and thus some other color can be expressed as a combination of the three colors to achieve The same stimulating effect on the human eye, in which the respective components of the three colors can be used as the coordinate values X, Y and Z in the color space.

In the embodiment of the present invention, the color coordinates of each of the plurality of monochrome channels in the luminaire may be first measured through step S402. Specifically, the color coordinates may be measured using a colorimeter. For example, FIG. 5 is a schematic diagram of color space and color coordinates according to an embodiment of the present invention, and FIG. 5 illustrates an optional color of each channel in a luminaire including three monochromatic channels of red, green, and blue. The measurement result of the coordinates. Specifically, the xy coordinate system shown in FIG. 5 may represent a coordinate system in which the color space is located, wherein the abscissa x may represent the proportion of one of the three colors, and the ordinate y may represent the proportion of the other. Then, the proportion of the remaining one color can be expressed by (1-xy). The region 502 identified by the dashed line in FIG. 5 may represent the color gamut of the CIE 1931, which may be considered a collection of colors that can be recognized by the human eye, and each coordinate point in the color gamut 502 can be expressed. One color. The area 504 identified by the solid line in Figure 5 may represent the tunable domain of the luminaire, i.e., by adjusting the drive parameters of each of the three monochromatic channels included in the luminaire. a set of colors of the emitted light of the luminaire as a whole. Specifically, the three vertices Pr, Pg, and Pb of the color gamut 504 respectively represent color coordinate points of the three monochrome channels, wherein Pr can be measured by a colorimeter. The color coordinate point of the red light channel, Pg may be the color coordinate point of the green light channel measured by the colorimeter, and Pb may be the color coordinate point of the blue light channel measured by the colorimeter. In the above scenario, by adjusting the driving parameters of the three monochrome channels, any color located in the above-mentioned colorable field 504 can be superimposed, for example, white indicated by the color coordinate point Pw in FIG. .

Based on this, according to the driving method of the luminaire provided by the embodiment of the present invention, in step S404, the target illuminance of each channel can be obtained according to the target color coordinates of the emitted light of the luminaire and the color coordinates of each channel.

Specifically, in the embodiment of the present invention, the illuminance corresponding to each of the plurality of monochrome channels can represent the light output ratio of each channel, and then the superposition of the output light at different ratios through the respective monochrome channels. Then, you can combine the desired color or the color coordinates of the light emitted by the luminaire. More specifically, as an optional manner, in the embodiment of the present invention, the foregoing step S404 may include:

S2: generating a color mixing region in which a color coordinate of each channel is a vertex in a preset color coordinate space;

S4: if the target color coordinate is located in the color mixing area, obtaining an illuminance ratio of each channel according to a relative positional relationship between the target color coordinates and color coordinates of each channel;

S6: The product of the sum of the illuminances of the emitted light and the illuminance ratio of each channel is used as the target illuminance of each channel.

Further, according to the driving method provided by the embodiment of the present invention, in step S406, the driving parameters of each channel corresponding to the target illuminance of each channel may be acquired, and then the acquired each channel may be used through step S408. The drive parameters drive each channel.

In particular, in an embodiment of the invention, the drive parameter may represent a physical parameter for driving each channel in the luminaire and acting as an adjustment to the illuminance of each channel, for example, in some embodiments of the invention The driving parameter may be a voltage amplitude of a voltage signal as an analog quantity, and in other embodiments, the driving parameter may also be a duty ratio of a pulse width modulation PWM (Pulse Width Modulation) signal as a digital quantity. Wherein, the driving parameter can generally correspond to the output of the driving circuit of the luminaire, but the invention does not limit this.

In another aspect, in an embodiment of the invention, the drive parameter may be acquired based on a pre-established drive model for each monochrome channel. For example, in an embodiment of the present invention, the foregoing step S406 may include:

S8: performing a fitting process on a plurality of driving parameter sample values corresponding to each channel and a plurality of illuminance sampling values, wherein the plurality of driving parameter sampling values are in one-to-one correspondence with the plurality of illuminance sampling values;

S10: Obtain a correspondence between a driving parameter corresponding to each channel and a target illuminance according to a result of the fitting process;

S12: Acquire driving parameters of each channel corresponding to the target illuminance of each channel according to the correspondence.

In the embodiment of the present invention, for each channel in the luminaire, the sampled values of the plurality of sets of driving parameters measured in advance may be first matched with the illuminance sampled values, and then the single point is determined according to the result of the fitting. The correspondence between the driving parameters of the color channel and the target illuminance. In the simplest case, for a luminaire with high linearity between driving parameters and illuminance, such as a voltage signal below a certain voltage threshold or a PWM signal controlled below a certain frequency threshold, a Light Emitting Diode (LED) For the luminaire, the above fitting process can be performed by linear fitting. However, this is not the only embodiment of the present invention. For example, for a luminaire with poor linearity, other fitting methods may be used to obtain a correspondence between more complex driving parameters and target illuminance. Not limited.

For example, in an embodiment of the present invention, the foregoing step S8 may specifically include:

S14: linearly fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values; wherein

The foregoing step S10 may specifically include:

S15: Obtain a correspondence according to the result of the linear fitting: E=p*c+E ₀ , where E represents the target illuminance of each channel, c represents the driving parameter of each channel, and p and E ₀ are constant coefficients; ,

The above step S12 may specifically include:

S16: Obtain the driving parameter of each channel according to the following formula: c=(EE ₀ )/p.

6 is a schematic diagram showing the fitting result between the driving parameters of the monochrome channel and the target illuminance according to the first embodiment of the present invention, taking the fitting result shown in FIG. 6 as an example. In FIG. 6, the black solid dot may represent a sampling point, and the abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and the ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. It can be seen from Fig. 6 that the linearity between the driving parameters and the illuminance is better for the monochrome channel, so it can be fitted by the fitting method of linear fitting, and the fitting result can be It is a straight line 602 shown in FIG. In the above scenario, the constant coefficient p may be the slope of the straight line 602, and the constant coefficient E ₀ may be approximately zero, that is, the duty ratio as the driving parameter is substantially proportional to the target illuminance.

In addition, as an alternative manner, in the embodiment of the present invention, the foregoing step S8 may include:

S17: fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values by using an interpolation method; wherein,

The foregoing step S10 may specifically include:

S18: Obtain a correspondence according to the result of the fitting process: E=(E ₂ -E ₁ )*(cc ₁ )/(c ₂ -c ₁ )+E ₁ , where E represents the target illuminance of each channel, c Representing the drive parameter of each channel, c ₁ represents one of a plurality of drive parameter sample values and c ₁ <c, c ₂ represents one of a plurality of drive parameter sample values and c ₂ >c, and E ₁ represents a plurality of illuminances One of the sample values corresponding to c ₁ , and E ₂ represents one of the plurality of illuminance sample values corresponding to c ₂ ;

The above step S12 may specifically include:

S19: Acquire driving parameters of each channel according to the following calculation formula: c=(c ₂ -c ₁ )*(EE ₁ )/(E ₂ -E ₁ )+c ₁ .

7 is a schematic diagram showing a fitting result between a driving parameter and a target illuminance of a monochrome channel according to a second embodiment of the present invention, taking the fitting result shown in FIG. 7 as an example. In FIG. 7, the black solid dot may represent a sampling point, and the abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and the ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. Different from the foregoing processing method of linear fitting, in the embodiment of the present invention, a plurality of sampling points are matched by using an interpolation method, and specifically, the processing method of the interpolation method can be regarded as using a connection. a polyline of a plurality of sampling points to indicate a correspondence between a driving parameter of each channel and a target illuminance, that is, within a value interval between two adjacent sampling points, the correspondence may be connected by A line segment between two adjacent sampling points is represented.

In the above scenario, the result of the fitting process performed by step S17 may be the polyline 702 connecting the plurality of sampling points in FIG. 7, and further between the driving parameters of the monochrome channel corresponding to the group of sampling points and the target illuminance. The correspondence can be represented by the polyline 702. For example, for the value interval between two adjacent sampling points (c ₁ , E ₁ ) and (c ₂ , E ₂ ) in FIG. 7, the target illuminance E corresponding to any driving parameter c can represent for:

E=(E ₂ -E ₁ )*(cc ₁ )/(c ₂ -c ₁ )+E ₁ ,

Correspondingly, if the target illuminance E is to be reached, the required drive parameter c can be expressed as:

c = (c _{2 -} c ₁ ) * (EE ₁ ) / (E _{2 -} E ₁ ) + c ₁ .

Two specific implementations of the fitting process described in step S8 are provided by the above two examples, however, it should be understood that the specific fitting processing method employed in the embodiments of the present invention is not limited to the above two. For example, other more complicated non-linear curve fitting processes, such as cubic spline interpolation, etc., may be employed. Further, in some embodiments of the present invention, other processing methods of neural networks or function approximation may also be employed. Implementation, etc., the invention is not limited thereto.

On the other hand, it can be seen from the above description that, as an optional manner, before the step S8, the foregoing method may further include:

S20: selecting a plurality of driving parameter sample values corresponding to each channel;

S22: driving each channel by using each of the plurality of driving parameter sample values;

S24: When each channel is driven by using each driving parameter sample value, the current illuminance of each channel is obtained as the illuminance sample value corresponding to each driving parameter sample value.

On this basis, further optionally, in the embodiment of the present invention, the foregoing step S402 may include:

S26: Acquire current color coordinates of each channel when driving each channel by using each driving parameter sampling value;

S28: The average value of the plurality of current color coordinates acquired under the plurality of driving parameter sample values is used as the color coordinate of each channel.

That is, in the embodiment of the present invention, the color of the monochrome channel under the sampling value of each driving parameter may be compared while the driving parameter is scanned to calibrate the correspondence between the driving parameter of the monochrome channel and the target illuminance. The coordinates are measured, and the average of the measured plurality of color coordinates can be used as the color coordinates of the monochrome channel described in step S402. In this way, interference factors from the inside or outside of the colorimeter can be further eliminated, such as the influence of temperature on the measurement inaccuracy caused by the colorimeter, so as to achieve more color coordinates of the emitted light of the lamp. To drive the control accurately.

Based on the above description, in some embodiments of the present invention, the calibration of the luminaire can also be accomplished in a similar manner. In an embodiment of the present invention, the foregoing step S404 may include:

S30: Select multiple target color coordinates;

S32: acquire, according to each of the plurality of target color coordinates and the color coordinates of each channel, a target illuminance of each channel corresponding to each of the channels; wherein,

The above step S406 may include:

S34: Obtain a driving parameter of each channel as a driving parameter corresponding to each channel and each one, and record the obtained driving parameters in the data table; wherein

The above step S408 may include:

S36: determining a target color coordinate that the light needs to reach at present;

S38: searching, in the data table, a driving parameter corresponding to each channel and a target color coordinate that needs to be achieved;

S40: Drive each channel using the found drive parameters.

In other words, in the embodiment of the present invention, the target color coordinate and the driving may be calibrated before the lamp is shipped, by setting the target color coordinate and recording the driving parameter obtained based on the target color coordinate into the data table. The mapping relationship between the parameters, and the recorded data table can be stored in the controller of the luminaire, so that the luminaire can use the pre-stored data table to quickly query and obtain the target color coordinate to be achieved in the actual use process. Matching the drive parameters of each channel to achieve an effect of further speeding up the adjustment of the exit light of the luminaire and reducing the computational power requirements of the luminaire's controller.

The technical solutions of the present invention and the working principles thereof are explained in the above manner, but it should be understood that the above embodiments are only used to understand the present invention and are not to be construed as limiting the present invention. For example, in the foregoing embodiment, the illuminance matching of each channel is described by taking three monochrome channels of red, green, and blue as an example. However, in other embodiments of the present invention, the color of the monochrome channel is not limited to The three primary colors, for other monochrome channels, can still obtain the target illuminance of each channel by determining the gradable domain with its color coordinates as the vertices and combining the target color coordinates, in fact, even for only two For a single-channel luminaire, it is still possible to obtain various colors in the color coordinate space on the line segment vertices with the color coordinates of the two monochrome channels by adjusting the driving parameters thereof.

Example 2

The luminaire control method of this embodiment is a statistical method of the light color parameter, and FIG. 8 is a flowchart of the statistical method of the light color parameter according to the embodiment of the present invention. As shown in FIG. 8, the statistical method of the light color parameter may include the following Processing steps:

Step S802: respectively acquiring color coordinates of respective monochrome channels of each of the plurality of lamps and mean values and covariances of color coordinates of the respective monochrome channels of the plurality of lamps;

Step S804: Determine whether each of the monochrome channels corresponding to the one or more lamps that are subjected to the scaling process meets the preset condition according to the mean value and the covariance of the color coordinates of the respective monochrome channels of the plurality of lamps.

Step S806: Determine a common color gamut range of the plurality of lamps according to color coordinates of each of the plurality of lamps corresponding to the preset conditions.

In the related art, there is a lack of a technical solution capable of performing statistical analysis on the light color parameters of the same type of monochrome channel or multi-color channel luminaire. Using the method shown in Figure 8, the common gamut range of all the different luminaires is counted based on the color coordinates of the individual monochrome channels of the plurality of luminaires. The common color gamut is the intersection of the gamuts of different luminaires. This ensures that the chromatic aberration of all the calibrated different luminaires that are illuminated at any reference color coordinate within the common color gamut cannot be recognized by the human eye. In addition, according to the mean and covariance of the color coordinates of the respective monochrome channels of the same type of luminaire that have been statistically obtained, it can be judged whether each of the monochrome channels of the subsequently calibrated luminaire is qualified, that is, the quality of the subsequent luminaire is verified according to the statistical result. In order to timely filter out the lamps of unqualified quality.

In a preferred implementation, the color coordinate of each monochromatic channel of each luminaire is the average of the multiple measurements of the color coordinates of the monochromatic channel of the luminaire.

Preferably, in step S802, respectively obtaining the mean and the covariance may include the following operations:

Step S1: setting the color coordinate of the i-th monochrome channel of the jth luminaire to

Where T represents matrix transposition;

Step S2: Calculate the mean using the following formula:

Where M represents the number of multiple luminaires;

Step S3: Calculate the covariance by the following formula:

The mean and covariance of the monochromatic channels can be used to evaluate the color of each monochromatic channel to find design flaws that improve chip selection and drive design.

Table 1 shows examples of color coordinate measurements for each channel of 15 RGBW (red, green, blue, white) four-channel LED luminaires. As shown in Table 1,

Table 1

In Table 1 above, Rx and Ry represent the CIE 1931x coordinates and y coordinates of the red channel, respectively, Gx and Gy represent the CIE 1931x coordinates and y coordinates of the green channel, respectively, and Bx and By represent the CIE 1931x coordinates and y of the blue channel, respectively. The coordinates, Wx and Wy represent the CIE 1931x coordinates and y coordinates of the white channel, respectively; and the mean and covariance of each channel are calculated by calculation, and the results are as follows:

The mean value of the red channel is: (0.6959 0.3033),

The covariance of the red channel is:

The average value of the green channel is: (0.1956 0.7079),

The covariance of the green channel is:

The mean value of the blue channel is: (0.1408 0.0298),

The covariance of the blue channel is:

The mean value of the white channel is: (0.4367 0.4089),

The covariance of the white channel is:

Preferably, in step S804, determining the public color gamut range may include the following steps:

Step S4: determining a color gamut polygon of each luminaire according to color coordinates of each monochrome channel of each luminaire;

Step S5: obtaining, according to the value of n, the intersection of the common color gamut polygon of the n lamps and the color gamut polygon of the n+1th fixture as the common color gamut of the n+1 lamps, until the A common gamut range, where n is a positive integer greater than or equal to 1, and when n is equal to 1, the common gamut polygon of one luminaire is taken as the gamut polygon of the first luminaire.

In a preferred embodiment, the common gamut range of all different luminaires can be counted. 9 is a schematic illustration of a common color gamut range for different luminaires in accordance with a preferred embodiment of the present invention. As shown in Figure 9, the coordinate system used is the CIE 1931xy coordinate system. A1A2A3 is the gamut triangle of the luminaire 1, B1B2B3 is the gamut triangle of the luminaire 2, C1C2C3 is the gamut triangle of the luminaire 3, and the common color gamut is the intersection of the gamuts of different lamps, therefore, the grid shadow in Figure 9 The area is the common color gamut of the luminaire 1, the luminaire 2, and the luminaire 3. This ensures that the chromatic aberration of all the calibrated different luminaires that illuminate at any reference color coordinate within the common gamut is difficult to be recognized by the human eye.

10 is a flow diagram of a method of obtaining a common color gamut range for different luminaires in accordance with a preferred embodiment of the present invention. As shown in FIG. 10, the method may include the following steps:

Step S1002: Obtain color coordinates of each monochrome channel of a single luminaire in the M luminaries, and determine a reference color coordinate set in the gamut polygon of each luminaire; the reference color coordinate in the preferred embodiment refers to the CIE1931xy coordinate system. Take a series of color coordinate points selected in a certain step size. The step size is determined by the human eye by two adjacent reference colors. For example, the steps of the x-axis and the y-axis can be taken as 0.002. Taking all grid points in the gamut triangle of the luminaire as reference color coordinate points;

Step S1004: taking the common color gamut as all the grid points in the gamut triangle of the first calibration luminaire, which is called the reference color coordinate set of the first luminaire;

Step S1006: selecting all the reference color coordinate points of the reference color coordinate set of the first luminaire that fall within the gamut triangle of the second luminaire, which are called the common color gamut of the two luminaires;

Step S1008: whether the number M of the determined lamps is greater than 2; if yes, proceed to step S1010; if not, go to step S1018;

Step S1010: setting n=2;

Step S1012: selecting all the reference color coordinate points of the n color gamut in the common color gamut of the n luminaires, which are called the common color gamut of n+1 luminaries;

Step S1014: setting n=n+1;

Step S1016: determining whether the value of n is the same as the value of M; if yes, proceeding to step S1018; if not, proceeding to step S1012;

Step S1018: Obtain the public color gamut of the M lamps, and the process ends.

Preferably, in step S804, according to the mean value and the covariance of the color coordinates of the respective monochrome channels of the plurality of lamps, it is determined whether the corresponding respective monochrome channels of the one or more lamps that are subjected to the scaling process are in compliance with the preset. Conditions can include the following:

Step S6: acquiring color coordinates of the i-th monochrome channel of the jth luminaire, and setting

Step S7: Calculate the statistic according to the following formula:

among them,

Indicates the mean of the color coordinates of each monochrome channel of the N lamps that have been counted,

a covariance representing the color coordinates of each of the monochrome channels of the N lamps,

Express

Inverse matrix,

Approximate compliance with a chi-square distribution with a degree of freedom of 2;

Step S8: Will

Compare with the preset threshold T, if

If it is greater than T, it means

The corresponding luminaire does not meet the preset condition, where T is a threshold determined according to a preset confidence level.

In a preferred embodiment, the mean value of the color coordinates of each of the monochromatic channels of the N lamps of the same type that have been counted (denoted as

Where subscript i denotes the i-th monochrome channel) and covariance (denoted as

), it can be judged whether the N+1, ..., the subsequent calibration of each of the M luminaires is qualified, that is, whether it is significantly different from the known statistical law.

In a preferred implementation, a chi-square test in a hypothesis test can be employed. The specific implementation process is as follows:

Get the color coordinates of the i-th monochrome channel of the jth fixture, recorded as

Calculate the statistics according to the following formula:

among them,

Representation matrix

Inverse matrix, statistic

Obey the chi-square distribution with a degree of freedom of 2.

The statistic t is compared with a preset threshold T to determine whether the following formula holds:

If it is established, the color coordinates of the i-th monochrome channel of the jth tested luminaire are significantly inconsistent with the known statistical laws; that is, the monochromatic channel of the luminaire is unqualified, and the product needs to be repaired before leaving the factory or Directly treated as waste. Here, the preset threshold T may be derived from the cumulative distribution function of the chi-square distribution according to a preset confidence degree, or may be obtained by querying a standard chi-square distribution table.

It should be noted that, in the hypothesis test, N is the number of luminaire samples that need to be statistically mean and covariance. That is, the mean and covariance of the color coordinates of 1 to N lamps are first counted in the test. According to the statistical mean and covariance, it is determined whether N to M lamps are qualified.

Figure 11 is a schematic illustration of the determination of the eligibility of individual monochromatic channels of a luminaire using a chi-square test in accordance with a preferred embodiment of the present invention. As shown in FIG. 11, the four ellipses in the figure respectively represent the normal range of color coordinates of the four monochrome channels within a preset confidence level (corresponding to the preset reliability of the chi-square test). Dots represent their respective mean values, while square points represent measured color coordinates. If the square point falls within the ellipse, the corresponding channel is qualified; otherwise, if the square point does not fall within the ellipse, the channel is unqualified. In the case shown in Fig. 11, all of the RGB channels are qualified; however, the W channel fails the detection.

Preferably, in step S804, after determining whether the corresponding respective monochrome channels of the one or more luminaires that perform the scaling process after the statistic is processed meet the preset condition, the following steps may be further included:

Step S9: In the process of acquiring the public color gamut range, the gamut gamut polygon of the luminaire that is determined not to meet the preset condition is not acquired.

In addition, in addition to using the chi-square test to determine whether a particular monochrome channel of a luminaire is significantly different from known statistical laws, the above method can also be used to determine whether to calculate the common gamut range of all luminaires that have been detected. The gamut of a particular fixture needs to be taken into account. If a particular monochromatic channel of a luminaire is significantly different from known statistical laws, then the gamut of the luminaire should not be considered when calculating the common gamut range to avoid gamuts for fewer non-compliant luminaires. The public color gamut range of most of the lamps that meet the production requirements is too conservative, because the color gamut of the luminaire and the known common color gamut are mixed, and many common colores are lost. A point within the domain that is not within the gamut of the fixture. In this case, the luminaire should be eliminated or repaired, or the gamut range should be marked separately, but the luminaire is not guaranteed to be identical to other luminaires.

Example 3

The luminaire control method of this embodiment is a luminaire adjustment method. The lamp adjusting method of the embodiment of the invention can adjust parameters such as luminous flux and power consumption of the lamp. The embodiments of the present invention are described below with reference to the accompanying drawings.

In general, the human eye's visual system has photoreceptors, ie, cones, for the short (420-440 nm), medium (530-540 nm), and long (560-580 nm) bands, so for a certain luminaire, The color that the emitted light is recognized by the human eye can be described based on the stimulation ratio of the three cones. Specifically, three main colors can be defined first, and then the color superimposition model is used to adjust the respective outputs of the three colors, so that various colors can be expressed by superimposing the three colors. With the above principle, a luminaire having a plurality of monochromatic channels as a whole can express light colors other than the color of the monochromatic channel itself by superposition of light of a plurality of channels, for example, the plurality of monochromatic channels can include The red light channel, the green light channel and the blue light channel are not limited in the present invention, and the combination of two or more monochrome channels of other colors can achieve the effect of combining different light colors. This does not affect the implementation of the technical solutions of the present invention and the implementation of the technical effects thereof, and similar embodiments are considered to be within the scope of the present invention.

12 is a flow chart of a method of adjusting a luminaire in accordance with an embodiment of the present invention. The luminaire adjustment method can be used in a tunable luminaire having at least three optical channels, that is, the luminaire has n different monochromatic optical channels (n ≥ 3), and the target color is satisfied by adjusting the color coordinates of each optical channel. Coordinates, so that the color adjusted by the luminaire is the target color, but in order to make the light emitted by the luminaire meet the lighting requirements of the user, or for the purpose of energy saving, the luminaire can be further processed under the condition that the luminaire meets the target color. Adjustment, the method of adjusting the lamp comprises the following steps:

Step S1202: Acquire a first preset correspondence relationship between the total luminous flux of the luminaire and the driving parameter, wherein the total luminous flux is the sum of the luminous fluxes of the at least three optical channels.

Step S1204: Acquire a second preset correspondence relationship between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire as the target color.

In order to achieve the purpose of controlling and adjusting the luminaire, the luminaire can be dimmed by PWM dimming mode, the luminaire is adjusted to the target color, and the luminaire can be adjusted to meet other preset conditions. Assuming that the luminaire has n different monochromatic channels, the tristimulus value XYZ of the mixed light output from the n channels of the luminaire satisfies the following linear superposition relationship:

(Formula 1)

(Formula 2)

(Formula 3)

Where i=1, . . . , n, X _i Y _i Z _i is the CIE1931XYZ coordinate of the i-th channel, and Y _i represents the brightness in the chromaticity, and can also be expressed as the illuminance of the i-th channel in actual use. Let X _i Y _i be the CIE1931xy color coordinate of the ith channel. Then the coefficients ai and bi in the above formula are defined as follows

(Formula 4)

(Equation 5)

Let c _i be the duty ratio of the PWM dimming signal of the i-th channel, that is, the driving parameter is c _i , and Y _i =p _i c _i . Wherein, Y _i represents the illuminance of the i-th optical channel, and p _i is a proportional coefficient between the PWM duty value and the illuminance of the i-th optical channel (the illuminance is proportional to the luminous flux actually generated by the i-th optical channel). It should be understood that the luminous flux of the luminaire is proportional to its illuminance at any fixed target point. Similarly, the luminous flux of each optical channel is proportional to the illuminance of the channel at any fixed target point. Therefore, at the same fixed target point, the luminous flux is proportional to the illuminance. Since the Y coordinate in the above CIE 1931 XYZ coordinates represents illuminance or brightness, and since the measurement of illuminance is much easier than measuring the luminous flux, the illuminance is used instead of the luminous flux to establish a formula for solving the driving parameters in the specification of the present invention.

Let the target reference color coordinate be (x _r , y _r ). To make the mixed light color of n monochromatic channels reach (x _r , y _r ), c _i must satisfy the following equations:

(Equation 6)

(Equation 7)

Through formula 6 and formula 7, the luminaire can be adjusted to the target color, that is, the second preset correspondence relationship is formula 6 and formula 7. It can be known from the above formula that the color of the luminaire can be adjusted to the target color by driving parameter c _i , wherein the driving parameter c _i is a variable.

The illuminance of the i-th optical channel is Y _i =p _i c _i , and the total illuminance of at least three optical channels is

It can be seen that the total illuminance of at least three optical channels includes the driving parameter c _i , and the illuminance of each optical channel in the luminaire can be adjusted by obtaining the driving parameters, so that the total illuminance of the luminaire is proportional to the total luminous flux of the luminaire.

Step S1206: Acquire a maximum luminous flux of each optical channel in the luminaire.

In the process of manufacturing the luminaire, each optical channel in the luminaire has its maximum luminous flux, that is, the upper limit of the luminous flux that can be achieved by each optical channel of the luminaire. Since the illuminance of the luminaire is proportional to the luminous flux, each optical channel is in one The illuminance that can be reached at a fixed target point cannot be greater than the maximum illuminance of the optical channel at this target point, expressed as Y _i,max . Similarly, the maximum illuminance is proportional to the maximum luminous flux.

Step S1208, obtaining a range of driving parameters. Since the driving parameter c _i is the PWM duty ratio of the i-th channel, the PWM duty ratio ranges between 0 and 1, that is, 0 ≤ c _i ≤ 1.

Step S1210: According to the first preset correspondence relationship, the second preset correspondence relationship, the maximum luminous flux of each optical channel, and the range of driving parameters, obtain driving parameter values that cause the total luminous flux to reach a preset condition.

According to the foregoing, the first preset correspondence, the second preset correspondence, the maximum luminous flux of each optical channel, and the range of driving parameters have a certain correspondence with the driving parameters, and therefore, according to the first preset The relationship between the relationship, the second preset correspondence, the maximum luminous flux of each optical channel, and the driving parameter, and the driving parameter value that causes the total luminous flux to reach a preset condition, that is, solving Equation 6 and Equation 7,

The equations consisting of the formula of the maximum luminous flux and the range of driving parameters for each optical channel are used to solve the driving parameter values.

In step S1212, the luminaire is adjusted by using the driving parameter value. After the driving parameters are obtained, the driving parameters are substituted into the above equations to determine the parameters of the lamps, thereby achieving the purpose of adjusting the lamps.

Through the above embodiments, in the process of adjusting the parameters of the luminaire, it is not necessary to manually draw the auxiliary points in the gamut of the light source on the CIE1931 chromaticity diagram to find the parameters of the tuned lamp, and the optical channel of the luminaire is not more than four. The inability to find the reversible matrix can not adjust the parameters of the luminaire. Under the condition that the target color is satisfied, the constraints on the driving parameters that need to be adjusted are satisfied, and the driving parameters can be solved to achieve the purpose of adjusting the luminaire, thereby solving the prior art. The problem of inconvenient adjustment of the parameters of the adjustable luminaire is achieved, and the effect of adjusting the luminaire is achieved.

The performance of the luminous flux and power consumption of the luminaire can be adjusted under the condition that the target color is satisfied. The following three adjustment schemes are provided in the embodiment of the present invention.

In the first scheme, the solution can adjust the total luminous flux or the total illuminance of the luminaire output to the maximum, that is, the first preset correspondence satisfies the total luminous flux of the luminaire to reach a maximum value:

When the total luminous flux of the luminaire reaches a maximum, the illuminance of the luminaire at any fixed target point in space also reaches its maximum. The formula for maximum illuminance can be expressed as

The maximum value of the total illuminance is an expression containing the variable of the driving parameter c _i . It should be understood that the drive parameter c _i that maximizes the illuminance can also maximize the total luminous flux of the luminaire.

Secondly, when the actual illuminance of the optical channel i is less than or equal to the maximum illuminance of the optical channel i, the first driving parameter value is obtained according to the first preset correspondence, the second preset correspondence, and the range of the driving parameter, where the first The drive parameter value drives the luminaire such that the total luminous flux of the luminaire reaches a maximum, wherein the optical channel i is any one of the at least three optical channels. In order to collect data conveniently, the driving parameter value is solved by collecting the total illuminance outputted by the luminaire. Since the illuminance has a proportional relationship with the luminous flux, the driving parameter value solved according to the luminous flux can also be solved by the illuminance.

In order to maximize the total illuminance of the luminaire output, the drive parameters can be obtained by solving the following set of methods:

In the system of equations, Equation 9 and Equation 10 can constrain the output color of the luminaire to the target color, that is, as the second preset correspondence; Equation 8 can optimize the total illuminance of the luminaire output to the maximum value, that is, as the first preset corresponding Relationship 11; Equation 11 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel. Equation 12 can constrain the driving parameter, that is, the duty cycle of the PWM dimming signal to be between 0 and 1. The driving parameter c _i solved by the formula 8 to the formula 12 is the first driving parameter value, and the first driving parameter value enables the total illumination of the luminaire to be the largest when the luminaire meets the target color, according to the ratio of the illuminance to the luminous flux. The relationship shows that the total luminous flux output is the largest.

According to the first scheme, the first driving parameter value that maximizes the total luminous flux outputted by the luminaire can be solved under the condition of knowing the maximum luminous flux of each optical channel, and the luminaire is adjusted by the first driving parameter value. The invention solves the problem that the adjustment of the parameters of the adjustable lamp is inconvenient in the prior art, thereby achieving the effect of facilitating the adjustment of the lamp.

In the second scheme, the actual power consumption of the luminaire is adjusted to be less than or equal to the maximum power consumption of the luminaire based on the maximum total luminous flux or total illuminance of the adjusted output of the first scheme.

First, get the maximum power consumption of the luminaire. The luminaire has a design power consumption during the manufacturing process, that is, the luminaire can work normally when the power consumption is lower than the design power. When the power consumption is higher than the design power, the luminaire may burn and cause damage, and the design power consumption is the maximum. Power consumption, here expressed by P _max .

Secondly, the actual power consumption of the luminaire is obtained, wherein the actual power consumption is the sum of the power consumption of each optical channel when the luminaire reaches the target color. The actual power consumption of the luminaire can be obtained by measuring the actual power consumption of each optical channel in the luminaire, that is, the actual power consumption of the luminaire is the sum of the actual power consumption of each optical channel in the luminaire, the ith light The actual power consumption of the channel is P _i,max c _i , and the actual power consumption of the luminaire is

Finally, when the actual power consumption of the luminaire is less than or equal to the maximum power consumption, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, the second preset correspondence, and the range of the driving parameter The actual power consumption when the second drive parameter value is obtained to drive the luminaire to the target color does not exceed the maximum power consumption of the luminaire, and the total luminous flux of the luminaire reaches a maximum. The drive parameters are solved by the following equations:

In this system of equations, Equations 14 and 15 enable the output color of the luminaire to be the target color, Equation 13 can constrain the total illuminance of the luminaire output to a maximum value, and Equation 16 can constrain the power consumption of multiple optical channels of the luminaire to be less than or equal to the luminaire. The maximum power consumption, Equation 17 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel. Equation 18 can constrain the driving parameter to be between 0 and 1. The driving parameter c _i solved by Equations 13 to 18 is the second driving parameter value, and the second driving parameter value enables the luminaire to output the total illuminance and the total luminous flux to the maximum when the target color is satisfied.

Through the second scheme, the driving parameters can be solved under the condition that the maximum illuminance and the maximum luminous flux of each optical channel are determined, and the actual power consumption of the luminaire is less than the maximum power consumption of the luminaire, and the luminaire is adjusted by the driving parameters, so that the actual luminaire is When the power is less than or equal to the maximum power, the total illumination and the total luminous flux output by the lamp are maximized, thereby solving the problem that the adjustment of the parameters of the adjustable lamp is inconvenient in the prior art, thereby achieving the effect of facilitating the adjustment of the lamp.

In the third embodiment, in order to ensure that the color of the output of the lamp is the target color, not only the luminous flux of the lamp can meet the lighting requirements of the user, but also the total power consumption of the lamp can be minimized to achieve the purpose of energy saving, and the embodiment can also pass the The method of adjusting the luminaire:

First, the minimum target luminous flux of the luminaire for the target color is obtained.

Secondly, obtaining a third preset correspondence relationship between the actual power consumption of the luminaire and the driving parameter, wherein the actual power consumption is the sum of the power consumption of each optical channel when the luminaire reaches the target color, and the third preset correspondence relationship satisfies the luminaire as the target color. The actual power consumption is the minimum.

The actual power consumption of the luminaire is

The minimum actual power consumption is

Finally, when the total luminous flux is greater than or equal to the minimum target luminous flux, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, the second preset correspondence, the third preset correspondence, and The range of drive parameters yields a third drive parameter value, wherein the luminaire is driven with the third drive parameter value such that the actual power consumption of the luminaire for the target color is a minimum and the total luminous flux is greater than or equal to the minimum target luminous flux. Since the luminous flux is proportional to the illuminance, when the total luminous flux is greater than or equal to the minimum target illuminance, and the actual illuminance of the optical channel i is less than or equal to the maximum illuminance of the optical channel i, according to the first preset correspondence, the second preset correspondence, The third preset correspondence and the range of the driving parameters obtain a third driving parameter value, wherein the third driving parameter value is used to drive the luminaire such that the actual power consumption of the luminaire for the target color is a minimum value and the total illuminance is greater than or equal to the minimum target illuminance.

In this system of equations, Equation 19 enables the actual power consumption of the luminaire to be the minimum, ie the third preset correspondence; Equation 20 and Equation 21 enable the output color of the luminaire to be the target color, and Equation 22 can constrain multiple luminaires The sum of the illuminances of the optical channels is greater than or equal to the minimum target illuminance of the luminaire, that is, the first preset correspondence; Equation 23 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel, and Equation 24 can constrain the driving parameters. The duty ratio of the PWM dimming signal is between 0 and 1. The driving parameter c _i solved by the formula 19 to the formula 24 is the third driving parameter value, and the third driving parameter value enables the luminaire to not only minimize the total power consumption of the luminaire, but also minimize the total power consumption of the luminaire. At the same time, the amount of light emitted by the luminaire is sufficient, that is, the total illuminance of the output is greater than or equal to the minimum illuminance of the luminaire.

According to the third scheme, the minimum target luminous flux of the luminaire can be determined, and when the actual luminous flux of the luminaire is greater than or equal to the minimum target luminous flux of the luminaire, the driving parameter when the optical power consumption of the luminaire is the minimum value is solved, that is, the minimum target of the luminaire is determined. The illuminance, and when the actual illuminance of the luminaire is greater than or equal to the minimum illuminance of the luminaire, the driving parameters for solving the luminaire's optical power consumption are at a minimum, and the luminaire is adjusted by the driving parameters so that the luminous flux of the luminaire satisfies the normal illumination condition. The total power consumption of the luminaire output is minimized. When the luminaire is the target color, the adjustment parameters of the luminaire can be provided, and the driving parameters of the luminaire can be solved, and the illuminating parameters can be adjusted by using the obtained driving parameters, thereby solving the problem. In the prior art, the problem of adjusting the parameters of the adjustable luminaire is inconvenient, and the effect of adjusting the luminaire is achieved.

When the luminaire is adjusted according to the above multiple schemes, it is not necessary to manually find the auxiliary point, and the equation can be used to obtain accurate driving parameters to adjust the luminaire, which not only facilitates calculation, but also improves the accuracy of adjusting the luminaire. At the same time, the above embodiment is also applicable to a luminaire having more than 4 optical channels, which avoids the fact that the matrix can be used to solve the driving parameters without an invertible matrix, which makes it impossible to adjust the luminaire.

Preferably, in order to further adjust the luminaire, the illuminating method further includes: acquiring an optical radiant flux of any one of the at least three optical channels; and acquiring a fourth preset correspondence between the optical radiant flux and the driving parameter, The fourth preset correspondence is used to limit the optical radiant flux to be in a predetermined range, wherein, according to the first preset correspondence relationship, the second preset correspondence relationship, the fourth preset correspondence relationship, and the maximum luminous flux of each optical channel And the range of the driving parameters, the fourth driving parameter value is obtained, wherein the fourth driving parameter value is used to drive the luminaire such that the illuminating flux of the luminaire is in a predetermined range, and the optical radiant flux is proportional to the driving parameter.

It should be understood that the above-mentioned luminous flux can be calculated by illuminance conversion, that is, the optical radiant flux of any one of the at least three optical channels is obtained; and the fourth preset correspondence relationship between the optical radiant flux and the driving parameter is obtained, wherein The fourth preset correspondence is used to limit the optical radiant flux to be in a predetermined range, wherein, according to the first preset correspondence relationship, the second preset correspondence relationship, the fourth preset correspondence relationship, the maximum luminous flux and driving of each optical channel The range of the parameter results in a fourth drive parameter value, wherein the luminaire is driven with the fourth drive parameter value such that the illuminant flux of the luminaire is within a predetermined range.

The method for adjusting the luminaire of the embodiment of the present invention is not limited to the three methods of the first to the third embodiments, and the luminaire can be adjusted for the parameters of each optical channel. For example, limiting the range of optical radiation flux of a certain optical channel on the basis of the first scheme, or limiting the range of the output luminous flux of the white light on the basis of the second scheme, or limiting the power of an optical channel on the basis of the third scheme. Wait. After determining the constraint condition for the parameter of an optical channel, the constraint parameter and the equations of the corresponding solution are used to solve the value of the driving parameter, thereby adjusting the luminaire by using the value of the obtained driving parameter.

It should be noted that since the luminous flux is proportional to the illuminance, the illuminance is proportional to the brightness. Therefore, by adjusting the driving parameters to adjust the luminous flux, the brightness and illuminance of the luminaire can be adjusted accordingly. Similarly, adjustments are needed in comparison with the brightness or brightness. At the same time, the above method can also be used to establish the relationship between the illuminance or the brightness and the luminous flux, so that the driving parameters can be solved to adjust the luminaire under the condition that a certain illuminance or brightness is satisfied.

For example, on the basis of the first scheme, the illuminance of the luminaire is constrained so that the illuminance of the luminaire is in the range a to b, and the constraint on the illuminance can be determined according to the correspondence between the illuminance and the luminous flux and the formula 10 in the first scheme. Combine Equation 8, Equation 9, and Equation 11, Equation 12 to solve the value of the drive parameter.

It can be seen that, on the basis of satisfying the target color, the driving parameters can be solved for different constraints by the method provided by the above embodiments of the present invention, thereby achieving the purpose of adjusting the luminaire, so that the luminaire can achieve different performances. While the above embodiments do not have all of the constraints that the luminaire can adjust, it should be understood that any method of adjusting the luminaire using the methods provided by embodiments of the present invention is within the spirit of the present invention.

The method in the above embodiment will be specifically described below by taking a five-channel LED lamp as an example.

The optical parameters of the five channels are shown in Table 2, including CIE1931xy color coordinates, the maximum illumination of each channel Y _i,max (lux), the maximum power consumption of each channel P _i,max (W), the ratio of illumination and PWM of each channel. p _i .

Table 2. Optical parameters of each channel

通道编号Channel number	(x_i，y_i)(x _i , y _i )	Y_i,max(lux)Y _i,max (lux)	P_i,max(W)P _i,max (W)	p_i p _i
通道编号Channel number	(x_i，y_i)(x _i , y _i )	Y_i,max(lux)Y _i,max (lux)	P_i,max(W)P _i,max (W)	p_i p _i	11	(0.62,0.32)(0.62, 0.32)	140140	22	140140
22	(0.44,0.52)(0.44, 0.52)	165165	11	165165	11	(0.62,0.32)(0.62, 0.32)	140140	22	140140
22	(0.44,0.52)(0.44, 0.52)	165165	11	165165	33	(0.15,0.68)(0.15, 0.68)	233233	33	233233
44	(0.4,0.4)(0.4,0.4)	320320	33	320320	33	(0.15,0.68)(0.15, 0.68)	233233	33	233233
44	(0.4,0.4)(0.4,0.4)	320320	33	320320	55	(0.12,0.18)(0.12, 0.18)	100100	44	100100

FIG. 13 is a schematic diagram of a gamut of a luminaire according to an embodiment of the present invention, the gamut of which is shown in FIG. Wherein, the color gamut is an area surrounded by a curve and a straight line, and the black circle on the five vertices of the area surrounded by the irregular quadrilateral represents the color coordinate point of the five channels, and the black circle in the middle of the quadrilateral represents the color of the white light. Coordinates, ie (0.4, 0.4).

According to the scheme, a pair of lamps are adjusted, and the results are shown in Table 3.

Table 3. Adjustment results adjusted according to protocol one

(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)
(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)	(0.32,0.32)(0.32, 0.32)	(0.41,0,0.11,1,1)(0.41,0,0.11,1,1)	503.22503.22	8.158.15
(0.34,0.34)(0.34, 0.34)	(0.83,0,0.41,1,1)(0.83,0,0.41,1,1)	631.77631.77	9.899.89	(0.32,0.32)(0.32, 0.32)	(0.41,0,0.11,1,1)(0.41,0,0.11,1,1)	503.22503.22	8.158.15
(0.34,0.34)(0.34, 0.34)	(0.83,0,0.41,1,1)(0.83,0,0.41,1,1)	631.77631.77	9.899.89	(0.36,0.36)(0.36, 0.36)	(1,0.74,0.44,1,1)(1,0.74,0.44,1,1)	784.2784.2	11.0511.05
(0.38,0.38)(0.38, 0.38)	(1,1,0.45,1,0.72)(1,1,0.45,1,0.72)	802.26802.26	10.2510.25	(0.36,0.36)(0.36, 0.36)	(1,0.74,0.44,1,1)(1,0.74,0.44,1,1)	784.2784.2	11.0511.05
(0.38,0.38)(0.38, 0.38)	(1,1,0.45,1,0.72)(1,1,0.45,1,0.72)	802.26802.26	10.2510.25	(0.4,0.4)(0.4,0.4)	(1,1,0.51,1,0.42)(1,1,0.51,1,0.42)	784.98784.98	9.29.2

As shown in Table 3, from top to bottom are the five optical channels of the luminaire. The xy color coordinates of the target colors of the five optical channels are as shown in the first column (x _i , y _i ) in Table 3, and the PWM duty ratio is as shown in the table. As shown in the second column of 3, the total illumination illuminance Y of each optical channel is shown in the third column of Table 3. The total output power consumption of each optical channel is shown in the fourth column of Table 3. Table 3 is the result of the adjustment by the method of the first scheme, wherein when the luminaire is the target color, that is, when the xy color coordinate of the luminaire is the same as the xy color coordinate of the target color, the illuminance and the luminous flux output by each channel are maximized, thereby The illuminance of the luminaire output and the luminous flux are the largest.

According to the second scheme, the lamps are adjusted. The results are shown in Table 4. According to the second scheme, the luminaire is adjusted, that is, when the power consumption is not greater than a certain value, the total brightness of the luminaire output is maximized. Assuming that the power consumption cannot be greater than 10, the results of the adjustment of the luminaire by the method of the second scheme are as follows. The driving parameters are determined by the second scheme, and when the luminaire is adjusted by the determined driving parameters, the output power of each channel of the luminaire can be adjusted, thereby adjusting the total power output of the luminaire.

Table 4. Adjustment results adjusted according to scenario two

(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)
(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)	(0.32,0.32)(0.32, 0.32)	(0.41,0,0.11,1,1)(0.41,0,0.11,1,1)	503.22503.22	8.158.15
(0.34,0.34)(0.34, 0.34)	(0.83,0,0.41,1,1)(0.83,0,0.41,1,1)	631.77631.77	9.899.89	(0.32,0.32)(0.32, 0.32)	(0.41,0,0.11,1,1)(0.41,0,0.11,1,1)	503.22503.22	8.158.15
(0.34,0.34)(0.34, 0.34)	(0.83,0,0.41,1,1)(0.83,0,0.41,1,1)	631.77631.77	9.899.89	(0.36,0.36)(0.36, 0.36)	(0.75,1,0.23,1,0.95)(0.75,1,0.23,1,0.95)	739.45739.45	1010
(0.38,0.38)(0.38, 0.38)	(0.95,1,0.42,1,0.71)(0.95,1,0.42,1,0.71)	787.37787.37	1010	(0.36,0.36)(0.36, 0.36)	(0.75,1,0.23,1,0.95)(0.75,1,0.23,1,0.95)	739.45739.45	1010
(0.38,0.38)(0.38, 0.38)	(0.95,1,0.42,1,0.71)(0.95,1,0.42,1,0.71)	787.37787.37	1010	(0.4,0.4)(0.4,0.4)	(1,1,0.51,1,0.42)(1,1,0.51,1,0.42)	784.98784.98	9.29.2

Comparing Table 3 and Table 4, the luminaires are all in the target color, that is, the xy coordinates of each optical channel in Tables 3 and 4 are the same. Comparing the output power consumption of each optical channel in Tables 3 and 4, where there is no change for the color points (0.32, 0.32), (0.34, 0.34), and (0.4, 0.4), but for the color point (0.36, The optical channels where 0.36) and (0.38, 0.38) are located are 11.05 and 10.25 in Table 3, respectively, which are greater than 10. Since the power consumption of each optical channel output cannot be greater than 10, the color in Table 3 is The optical channel where the points (0.36, 0.36) and (0.38, 0.38) are located has an output power of 10.

According to the third scheme, the lamps are adjusted. The results are shown in Table 5. According to the third scheme, the luminaire is adjusted, that is, when the total illuminance of the luminaire output satisfies a certain amount, the output power consumption of each optical channel is minimized. Assume that the total illuminance of each light channel output in the luminaire cannot be less than 500 lux.

Table 5. Adjustment results adjusted according to scenario three

(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)
(x_i，y_i)(x _i , y _i )	PWMPWM	Y(lux)Y(lux)	P(W)P(W)	(0.32,0.32)(0.32, 0.32)	(0.35,0.12,0.05,1,1)(0.35, 0.12, 0.05, 1, 1)	500500	7.977.97
(0.34,0.34)(0.34, 0.34)	(0.27,0.4,0,1,0.77)(0.27, 0.4, 0, 1, 0.77)	500500	7.017.01	(0.32,0.32)(0.32, 0.32)	(0.35,0.12,0.05,1,1)(0.35, 0.12, 0.05, 1, 1)	500500	7.977.97
(0.34,0.34)(0.34, 0.34)	(0.27,0.4,0,1,0.77)(0.27, 0.4, 0, 1, 0.77)	500500	7.017.01	(0.36,0.36)(0.36, 0.36)	(0.25,0.55,0,1,0.55)(0.25, 0.55, 0, 1, 0.55)	500500	6.266.26
(0.38,0.38)(0.38, 0.38)	(0.22,0.68,0,1,0.362)(0.22, 0.68, 0, 1, 0.362)	500500	5.585.58	(0.36,0.36)(0.36, 0.36)	(0.25,0.55,0,1,0.55)(0.25, 0.55, 0, 1, 0.55)	500500	6.266.26
(0.38,0.38)(0.38, 0.38)	(0.22,0.68,0,1,0.362)(0.22, 0.68, 0, 1, 0.362)	500500	5.585.58	(0.4,0.4)(0.4,0.4)	(0.2,0.8,0,1,0.19)(0.2,0.8,0,1,0.19)	500500	4.984.98

Since the output illuminance of each optical channel is not limited to 500 Lux by scheme 3, and the output power of the optical channel is minimized when the illuminance is greater than 500 lux, the limitation of scheme 3 is limited to each optical channel in Table 5. The output illuminance is 500 lux, and compared with Table 3 and Table 4, the output power of each optical channel in Table 5 is correspondingly reduced, and the PWM value of each optical channel is correspondingly reduced.

The embodiment of the present invention further provides a luminaire control device. It should be noted that the luminaire control device can be used to perform the luminaire control method of the embodiment of the present invention. The provided luminaire control device is implemented. 14 is a schematic diagram of a luminaire control apparatus according to an embodiment of the present invention. As shown in FIG. 14, the luminaire control apparatus includes: a first acquisition total module 10 for acquiring color coordinates of a monochrome channel of a luminaire; and a second acquisition total module 20, for obtaining the driving parameter of the monochrome channel of the lamp according to the color coordinate of the monochrome channel of the lamp; and controlling the total module 30 for controlling the lamp according to the driving parameter.

Example 4

The luminaire control device of the embodiment is a driving device of the luminaire, and the driving device of the illuminating device can be used to perform the driving method of the luminaire according to the embodiment of the present invention. The driving method of the illuminating device according to the embodiment of the present invention can also be provided by the embodiment of the present invention. The luminaire's drive is implemented. 15 is a schematic diagram of a driving device of a luminaire according to an embodiment of the present invention. As shown in FIG. 15, the driving device of the luminaire includes:

1) a first obtaining unit 1502, configured to acquire color coordinates of each of the plurality of monochrome channels, wherein the luminaire includes the plurality of monochrome channels, and the emitted light of the luminaire is respectively sent by the plurality of monochrome channels Superposition of monochromatic light;

2) a second obtaining unit 1504, configured to obtain a target illuminance of each channel according to a target color coordinate of the emitted light and a color coordinate of each channel;

3) a third obtaining unit 1506, configured to acquire driving parameters of each channel corresponding to the target illuminance of each channel;

4) A first driving unit 1508 for driving each channel using the acquired driving parameters of each channel.

It should be clear that one of the problems to be solved by embodiments of the present invention is to provide a device for facilitating the overall output of the luminaire by driving each of the luminaires including a plurality of monochromatic channels. The light color or the color coordinate of the emitted light is adjusted, and the color coordinates of the outgoing light can be accurately returned to a certain target value by precise control of the driving parameters of each channel.

In order to solve the above problem, in the embodiment of the present invention, the color coordinates of each monochromatic channel in the luminaire are measured first, and then the chromaticity principle is used to calculate each of the required light for the illuminating light of the luminaire to reach the target color coordinate. The target illuminance of each channel, and then use the driving model established for each monochrome channel, that is, the correspondence between the driving parameters of each channel and the target illuminance to match the driving parameters required for each channel, and then Each of these channels can be driven separately using these drive parameters to complete the drive of the luminaire and to achieve the overall exit of the luminaire Target color coordinates. In the embodiment of the present invention, the control of each channel and its driving parameters based on the target color coordinates is open-loop, thereby eliminating the process of feedback adjustment, which can speed up the adjustment speed and improve the adjustment efficiency, thereby solving the existing The solution takes longer to adjust the luminaire with multiple different color channels.

The technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 15 , according to the driving device of the luminaire provided by the embodiment of the present invention, the color coordinates of each of the plurality of monochrome channels can be acquired by the first acquiring unit 1502, wherein the luminaire includes the plurality of monochromes. The channel, and the emitted light of the luminaire includes a superposition of monochromatic light emitted by each of the plurality of monochromatic channels.

In the embodiment of the present invention, the color coordinates of each of the plurality of monochrome channels in the luminaire may be first measured by the first obtaining unit 1502. Specifically, the color coordinates may be measured using a colorimeter. For example, Figure 5 shows a measurement of the color coordinates of each of the optional luminaires including three monochromatic channels of red, green, and blue. Specifically, the xy coordinate system shown in FIG. 5 may represent a coordinate system in which the color space is located, wherein the abscissa x may represent the proportion of one of the three colors, and the ordinate y may represent the proportion of the other. Then, the proportion of the remaining one color can be expressed by (1-xy). The region 502 identified by the dashed line in FIG. 5 may represent the color gamut of the CIE 1931, which may be considered a collection of colors that can be recognized by the human eye, and each coordinate point in the color gamut 502 can be expressed. One color. The area 504 identified by the solid line in Figure 5 may represent the tunable domain of the luminaire, i.e., by adjusting the drive parameters of each of the three monochromatic channels included in the luminaire. a set of colors of the emitted light of the luminaire as a whole. Specifically, the three vertices Pr, Pg, and Pb of the color gamut 504 respectively represent color coordinate points of the three monochrome channels, wherein Pr can be measured by a colorimeter. The color coordinate point of the red light channel, Pg may be the color coordinate point of the green light channel measured by the colorimeter, and Pb may be the color coordinate point of the blue light channel measured by the colorimeter. In the above scenario, by adjusting the driving parameters of the three monochrome channels, any color located in the above-mentioned colorable field 504 can be superimposed, for example, white indicated by the color coordinate point Pw in FIG. .

On the basis of the driving device provided by the embodiment of the present invention, the second illuminating unit 1504 can obtain the target illuminance of each channel according to the target color coordinates of the emitted light of the luminaire and the color coordinates of each channel.

Specifically, in the embodiment of the present invention, the illuminance corresponding to each of the plurality of monochrome channels can represent the light output ratio of each channel, and then the superposition of the output light at different ratios through the respective monochrome channels. Then, you can combine the desired color or the color coordinates of the light emitted by the luminaire. More specifically, as an optional manner, in the embodiment of the present invention, the foregoing second obtaining unit 1504 may include:

1) a generating module, configured to generate a color mixing region with a color coordinate of each channel as a vertex in a preset color coordinate space;

2) a fourth obtaining module, configured to obtain an illuminance ratio of each channel according to a relative positional relationship between the target color coordinates and the color coordinates of each channel when the target color coordinates are located in the color mixing region;

3) A second processing module for using the product of the sum of the illuminance of the outgoing light and the illuminance ratio of each channel as the target illuminance for each channel.

Further, according to the driving device provided by the embodiment of the present invention, the driving parameter of each channel corresponding to the target illuminance of each channel can be acquired by the third acquiring unit 1506, and can be obtained by using the first driving unit 1508. The drive parameters for each channel drive each channel.

In particular, in an embodiment of the invention, the drive parameter may represent a physical parameter for driving each channel in the luminaire and acting as an adjustment to the illuminance of each channel, for example, in some embodiments of the invention The driving parameter may be a voltage amplitude of the analog voltage signal, and in other embodiments, the driving parameter may also be a duty ratio of the digital PWM signal, etc., wherein the driving parameter is generally Corresponding to the output of the driving circuit of the luminaire, the present invention does not limit this.

In another aspect, in an embodiment of the invention, the drive parameter may be acquired based on a pre-established drive model for each monochrome channel. For example, as an optional manner, in the embodiment of the present invention, the third acquiring unit 1506 may include:

1) a fitting module, configured to perform fitting processing on a plurality of driving parameter sample values and a plurality of illuminance sampling values corresponding to each channel acquired in advance, wherein the plurality of driving parameter sampling values and the plurality of illuminance sampling values One-to-one correspondence;

2) a first obtaining module, configured to acquire, according to a result of the fitting process, a correspondence between a driving parameter corresponding to each channel and a target illuminance;

3) The second acquiring module is configured to acquire driving parameters of each channel corresponding to the target illuminance of each channel according to the correspondence relationship.

In the embodiment of the present invention, for each channel in the luminaire, the sampled values of the plurality of sets of driving parameters measured in advance may be first matched with the illuminance sampled values, and then the single point is determined according to the result of the fitting. The correspondence between the driving parameters of the color channel and the target illuminance. In the simplest case, for a luminaire with high linearity between driving parameters and illuminance, such as an LED illuminator controlled by a voltage signal below a certain voltage threshold or a PWM signal below a certain frequency threshold, the above fitting process may A linear fit is used. However, this is not the only embodiment of the present invention. For example, for a luminaire with poor linearity, other fitting methods may be used to obtain a correspondence between more complex driving parameters and target illuminance. Not limited.

For example, as an optional manner, in the embodiment of the present invention, the foregoing fitting module may specifically include:

1) a first fitting sub-module for linearly fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values; wherein

The foregoing first obtaining module may specifically include:

2) The first processing sub-module is configured to obtain a correspondence according to the result of the linear fitting: E=p*c+E ₀ , where E represents the target illuminance of each channel, and c represents the driving parameter of each channel, p And E ₀ is a constant coefficient;

The foregoing second obtaining module may specifically include:

3) The second processing sub-module is configured to obtain the driving parameter of each channel according to the following calculation formula: c=(EE ₀ )/p.

Take the fitting result shown in Fig. 6 as an example. In FIG. 6, the black solid dot may represent a sampling point, and the abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and the ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. It can be seen from Fig. 6 that the linearity between the driving parameters and the illuminance is better for the monochrome channel, so it can be fitted by the fitting method of linear fitting, and the fitting result can be It is a straight line 602 shown in FIG. In the above scenario, the constant coefficient p may be the slope of the straight line 602, and the constant coefficient E ₀ may be approximately zero, that is, the duty ratio as the driving parameter is substantially proportional to the target illuminance.

In addition, as an alternative, in the embodiment of the present invention, the foregoing fitting module may include:

1) a second fitting sub-module for fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values by interpolation; wherein

The foregoing first obtaining module may specifically include:

1) a third processing sub-module, configured to obtain a correspondence according to a result of the fitting process: E=(E ₂ -E ₁ )*(cc ₁ )/(c ₂ -c ₁ )+E ₁ , wherein E represents The target illuminance of each channel, c represents the drive parameter of each channel, c ₁ represents one of a plurality of drive parameter sample values and c ₁ <c, c ₂ represents one of a plurality of drive parameter sample values and c ₂ > c, E ₁ represents one of the plurality of illuminance sample values corresponding to c ₁ , and E ₂ represents one of the plurality of illuminance sample values corresponding to c ₂ ;

The foregoing second obtaining module may specifically include:

1) The fourth processing sub-module is configured to obtain driving parameters of each channel according to the following calculation formula:

c = (c _{2 -} c ₁ ) * (EE ₁ ) / (E _{2 -} E ₁ ) + c ₁ .

Take the fitting result shown in Fig. 7 as an example. In FIG. 7, the black solid dot may represent a sampling point, and the abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and the ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. Different from the foregoing processing method of linear fitting, in the embodiment of the present invention, a plurality of sampling points are matched by using an interpolation method, and specifically, the processing method of the interpolation method can be regarded as using a connection. A polyline of multiple sampling points to represent the correspondence between the driving parameters of each channel and the target illuminance The relationship, that is, within the value interval between two adjacent sampling points, the correspondence may be represented by a line segment connected between the adjacent two sampling points.

In the above scenario, the result of the fitting process performed by the second fitting sub-module may be the folding line 702 connecting the plurality of sampling points in FIG. 7, and further the driving parameters of the monochrome channel corresponding to the group of sampling points and The correspondence between the target illuminances can be represented by the broken line 702. For example, for the value interval between two adjacent sampling points (c ₁ , E ₁ ) and (c ₂ , E ₂ ) in FIG. 7, the target illuminance E corresponding to any driving parameter c can represent for:

E=(E ₂ -E ₁ )*(cc ₁ )/(c ₂ -c ₁ )+E ₁ ,

c = (c _{2 -} c ₁ ) * (EE ₁ ) / (E _{2 -} E ₁ ) + c ₁ .

Two specific embodiments of the fitting process described in the above fitting module are provided by the above two examples, however, it should be understood that the specific fitting processing method employed in the embodiment of the present invention is not limited to the above. For example, other more complicated nonlinear curve fitting processes, such as cubic spline interpolation, etc., may be employed. Further, in some embodiments of the present invention, neural networks or other processes of function approximation may also be employed. The method is implemented, and the like, and the present invention is not limited thereto.

In another aspect, it is known from the above description that, as an alternative, coupled to the fitting module, the apparatus may further include:

1) selecting a unit for selecting a plurality of driving parameter sample values corresponding to each channel;

2) a second driving unit, configured to drive each channel by using each of the plurality of driving parameter sampling values;

3) The fourth obtaining unit is configured to acquire the current illuminance of each channel as the illuminance sampling value corresponding to each driving parameter sample value when driving each channel by using each driving parameter sampling value.

On the basis of this, in the embodiment of the present invention, the first obtaining unit 1502 may include:

1) a third obtaining module, configured to acquire a current color coordinate of each channel when each channel is driven by using each driving parameter sampling value;

2) The first processing module is configured to use an average value of the plurality of current color coordinates acquired under the plurality of driving parameter sample values as the color coordinates of each channel.

That is, in the embodiment of the present invention, the color of the monochrome channel under the sampling value of each driving parameter may be compared while the driving parameter is scanned to calibrate the correspondence between the driving parameter of the monochrome channel and the target illuminance. The coordinates are measured, and the average of the measured plurality of color coordinates can be used as the color coordinates of the monochrome channel described in the first obtaining unit 1502. In this way, interference factors from the inside or outside of the colorimeter can be further eliminated, such as the influence of temperature on the measurement inaccuracy caused by the colorimeter, so as to achieve more color coordinates of the emitted light of the lamp. To drive the control accurately.

Based on the above description, in some embodiments of the present invention, the calibration of the luminaire can also be accomplished in a similar manner. In an embodiment of the present invention, the second acquiring unit 1504 may include:

1) selecting a module for selecting a plurality of target color coordinates;

2) a fifth obtaining module, configured to acquire, according to each of the plurality of target color coordinates and the color coordinates of each channel, a target illuminance of each channel corresponding to each of the channels; wherein

The third obtaining unit 1506 may include:

1) a third processing module, configured to acquire driving parameters of each channel as driving parameters corresponding to each channel and each one, and record the obtained driving parameters in the data table; wherein ,

The first driving unit 1508 may include:

1) a judging module for judging a target color coordinate that the outgoing light currently needs to reach;

2) a search module for searching for a drive parameter corresponding to each channel and a target color coordinate to be reached in the data table;

3) A drive module for driving each channel using the found drive parameters.

Example 5

The luminaire control device of the embodiment is a statistical device for the light color parameter, and the statistic device of the light color parameter can be used to perform the statistical method of the light color parameter of the embodiment of the present invention, and the statistical method of the light color parameter of the embodiment of the present invention is also It can be performed by the statistical device of the light color parameter provided by the embodiment of the present invention. 16 is a schematic diagram of a statistical device for a light color parameter according to an embodiment of the present invention. As shown in FIG. 16, the statistical device of the light color parameter may include: an obtaining module 1610, configured to respectively acquire each of the plurality of lamps The color coordinates of each of the monochrome channels and the mean and covariance of the color coordinates of the respective monochrome channels of the plurality of lamps; the determining module 1620 is configured to determine the mean and covariance of the color coordinates of the respective monochrome channels of the plurality of lamps Whether the corresponding respective monochrome channels of the one or more luminaires that are subjected to the calibration process subsequently meet the preset condition; the processing module 1630 is configured to: according to each of the plurality of luminaires, each of the plurality of luminaires that meets the preset condition The color coordinates determine the common color gamut range of multiple fixtures.

The device shown in FIG. 16 solves the problem that the related art lacks a technical solution capable of statistically analyzing the light color parameters of the same type of monochrome channel or multi-color channel luminaire, and thus can be different for the same model. The light color parameters of the luminaire are statistically analyzed, and the quality of the tested luminaire is checked according to the statistical result, so that the luminaire whose quality does not meet the requirements is timely filtered.

Preferably, FIG. 17 is a schematic diagram of a statistical device for light color parameters according to a preferred embodiment of the present invention. As shown in FIG. 17, the processing module 1630 may include a determining unit 16300 for each monochrome channel of each luminaire. The color coordinate determines the gamut polygon of each luminaire; the selecting unit 16302 is configured to obtain the intersection of the common color gamut polygon of the n luminaires and the gamut polygon of the n+1th luminaire according to the value of n from small to large. n+1 the common color gamut of the luminaire until the common gamut range is obtained, where n is a positive integer greater than or equal to 1, and when n is equal to 1, the common gamut polygon of one luminaire is taken as the first The gamut polygon of a fixture.

Preferably, as shown in FIG. 17, the determining module 1620 may include: a setting unit 16200, configured to acquire color coordinates of the ith monochrome channel of the jth luminaire, and set

The calculating unit 16202 is configured to calculate a statistic according to the following formula:

among them,

Express

Inverse matrix,

Obeying a chi-square distribution with a degree of freedom of 2; a comparison unit 16204 for

Compare with the preset threshold T, if

If it is greater than T, it means

From the above description, it can be seen that the foregoing embodiment achieves the following technical effects (it is required that the effects are achievable by some preferred embodiments): by using the technical solution provided by the embodiment of the present invention, The light color parameters of each monochromatic channel of the luminaire are statistically analyzed. That is, by counting the color coordinates of each monochrome channel of a plurality of lamps, the common color gamut range of all the different lamps is counted. The common color gamut is the intersection of the gamuts of different luminaires. This ensures that the chromatic aberration of all the calibrated different luminaires that are illuminated at any reference color coordinate within the common color gamut cannot be recognized by the human eye. In addition, according to the mean and covariance of the color coordinates of the respective monochrome channels of the same type of luminaire that have been statistically obtained, a hypothesis test method can be used to determine whether each of the monochrome channels of the subsequently calibrated luminaire is qualified.

Example 6

The luminaire control device of this embodiment is a luminaire adjustment device, and the luminaire adjustment device of the embodiment can be used to perform the luminaire adjustment method provided by the embodiment of the present invention. The luminaire adjustment device is provided for execution.

Figure 18 is a schematic illustration of a luminaire adjustment apparatus in accordance with an embodiment of the present invention. As shown in FIG. 18, the luminaire adjusting device includes a first acquiring unit 1810, a second acquiring unit 1820, a third obtaining unit 1830, a fourth obtaining unit 1840, a solving unit 1850, and an adjusting unit 1860.

The first obtaining unit 1810 is configured to acquire a first preset correspondence between the total luminous flux of the luminaire and the driving parameter, wherein the total luminous flux is the sum of the luminous fluxes of the at least three optical channels.

The second obtaining unit 1820 is configured to acquire a second preset correspondence between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire to the target color.

(Formula 1)

(Formula 2)

(Formula 3)

(Formula 4)

(Equation 5)

Let c _i be the PWM duty cycle of the i-th channel, that is, the driving parameter is c _i , and Y _i = p _i c _i . Where Y represents the illuminance of the i-th optical channel, and p _i is a proportional coefficient between the PWM duty value and the illuminance of the i-th optical channel (the illuminance is proportional to the luminous flux actually generated by the i-th optical channel). Let the target reference color coordinate be (x _r , y _r ). To make the mixed light color of n monochromatic channels reach (x _r , y _r ), c _i must satisfy the following equations:

(Equation 6)

(Equation 7)

It can be seen that the total illuminance of at least three optical channels includes the driving parameter c _i , and the illuminance and luminous flux of each optical channel in the luminaire can be adjusted by obtaining the driving parameters, so that the total illuminance of the luminaire is proportional to the total luminous flux of the luminaire. .

The third obtaining unit 1830 is configured to acquire the maximum luminous flux of each optical channel in the luminaire.

The fourth obtaining unit 1840 is configured to acquire a range of driving parameters. Since the driving parameter c _i is the PWM duty ratio of the i-th channel, the PWM duty ratio ranges between 0 and 1, that is, 0 ≤ c _i ≤ 1.

The solving unit 1850 is configured to obtain a driving parameter value that causes the total luminous flux to reach a preset condition according to the first preset correspondence relationship, the second preset correspondence relationship, the maximum luminous flux of each optical channel, and the range of driving parameters.

It can be seen from the above that the target color, the total luminous flux or the total illuminance and the maximum optical channel or maximum illuminance of each optical channel can be obtained by the driving parameters, and therefore, by the target color, the total luminous flux or the total illuminance and the maximum of each optical channel. The value of the drive parameter can be solved by the optical channel or the maximum illumination and the range of the drive parameters, that is, the value of the drive parameter can be obtained by solving the equations of the above multiple parameters.

The adjustment unit 1860 is for adjusting the luminaire with the driving parameters. After the driving parameters are obtained, the driving parameters are substituted into the above equations to determine the parameters of the lamps, thereby achieving the purpose of adjusting the lamps.

Through the above embodiments, in the process of adjusting the parameters of the luminaire, it is not necessary to manually draw the auxiliary points in the gamut of the light source on the CIE1931 chromaticity diagram to find the parameters of the tuned lamp, and the optical channel of the luminaire is not more than four. Cannot find the reversible matrix and can not adjust the parameters of the luminaire, under the condition of satisfying the target color, full The constraint condition of the driving parameters that need to be adjusted and the driving parameters can be solved to achieve the purpose of adjusting the luminaire, thereby solving the problem that the adjustment of the parameters of the adjustable luminaire is inconvenient in the prior art, and the effect of adjusting the luminaire is achieved. .

In the first scheme, the first preset correspondence in the solution satisfies the total luminous flux or the total illuminance of the luminaire as a maximum value, that is, the first preset correspondence satisfies the total luminous flux of the luminaire reaches a maximum value, and the solution unit includes:

a first solving module, configured to obtain a first driving parameter value according to a first preset correspondence relationship, a second preset correspondence relationship, and a range of driving parameters when an actual luminous flux of the optical channel i is less than or equal to a maximum luminous flux of the optical channel i When the driving luminaire reaches the target color, the total luminous flux reaches a maximum, wherein the optical channel i is any one of the at least three optical channels. In order to collect data conveniently, the driving parameter value is solved by collecting the total illuminance outputted by the luminaire. Since the illuminance has a proportional relationship with the luminous flux, the driving parameter value solved according to the luminous flux can also be solved by the illuminance.

In order to maximize the total illuminance of the luminaire output, the driving parameters can be obtained by solving the group consisting of the formula 8 and the formula 12, wherein the formula 8 to the formula 12 and the formula 8 in the embodiment of the method provided by the embodiment of the present invention are Equation 12 corresponds to the same and will not be described here:

In this system of equations, Equation 9 and Equation 10 can constrain the output color of the luminaire to the target color, ie as the second preset correspondence; Equation 8 can optimize the total illuminance or total luminous flux output of the luminaire to the maximum value, ie as the first Preset correspondence; Equation 11 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel. Equation 12 can constrain the driving parameter, that is, the duty cycle of the PWM dimming signal is between 0 and 1. . The driving parameter c _i solved by the formula 8 to the formula 12 is the first driving parameter value, and the first driving parameter value enables the total illumination of the luminaire to be the largest when the luminaire meets the target color, according to the ratio of the illuminance to the luminous flux. The relationship shows that the total luminous flux output is the largest.

According to the first scheme, the driving parameters of the total luminous flux output or the total illuminance of the luminaire output can be solved under the condition of knowing the maximum luminous flux or the maximum illuminance of each optical channel, and the driving parameters are used to enter the luminaire. The line adjustment solves the problem that the adjustment of the parameters of the adjustable lamp is inconvenient in the prior art, thereby achieving the effect of facilitating the adjustment of the lamp.

The solution unit includes: a first acquisition module for acquiring maximum power consumption of the luminaire; and a second acquisition module for acquiring actual power consumption of the luminaire, wherein the actual power consumption is power consumption of each optical channel when the luminaire reaches the target color. The second solution module is configured to: when the actual power consumption of the luminaire is less than or equal to the maximum power consumption, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence relationship, the second pre- The range of correspondence and driving parameters is obtained to obtain the second driving parameter value to drive the luminaire to reach the target color, the actual power consumption does not exceed the maximum power consumption of the luminaire, and the total luminous flux of the luminaire reaches a maximum value.

The luminaire has a design power consumption during the manufacturing process, that is, the luminaire can work normally when the power consumption is lower than the design power. When the power consumption is higher than the design power, the luminaire may burn and cause damage, and the design power consumption is the maximum. Power consumption, here expressed by P _max . The actual power consumption of the luminaire can be obtained by measuring the actual power consumption of each optical channel in the luminaire, that is, the actual power consumption of the luminaire is the sum of the actual power consumption of each optical channel in the luminaire, the ith light The actual power consumption of the channel is P _i,max c _i , and the actual power consumption of the luminaire is

The driving parameters are solved by the equations of the formulas 13 to 18. The formulas 13 to 18 are the same as the formulas 13 to 18 in the method embodiment provided by the embodiment of the present invention, and are not described herein again. In this system of equations, Equations 14 and 15 enable the output color of the luminaire to be the target color, Equation 13 can constrain the total illuminance of the luminaire output to a maximum value, and Equation 16 can constrain the power consumption of multiple optical channels of the luminaire to be less than or equal to the luminaire. The maximum power consumption, Equation 17 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel. Equation 18 can constrain the driving parameter to be between 0 and 1. The driving parameter c _i solved by Equation 13 to Equation 18 is the second driving parameter value, and the second driving parameter value enables the luminaire to output the total illuminance and the total luminous flux to the maximum when the target color is satisfied.

According to the second scheme, the driving parameters can be solved under the condition that the maximum luminous flux of each optical channel is determined, and the actual power consumption of the luminaire is less than the maximum power consumption of the luminaire, and the luminaire is adjusted by the driving parameters so that the actual power in the luminaire is less than or equal to At the maximum power, the total illuminance and total luminous flux outputted by the luminaire are maximized, thereby solving the problem of inconvenient adjustment of the parameters of the adjustable luminaire in the prior art, thereby achieving the effect of facilitating adjustment of the luminaire.

In the third embodiment, in order to ensure that the color of the output of the lamp is the target color, not only the luminous flux of the lamp can meet the lighting requirements of the user, but also the total power consumption of the lamp can be minimized to achieve the purpose of energy saving, and the embodiment can also pass the The device adjusts the luminaire:

The solution unit includes: a third acquisition module is configured to obtain a minimum target luminous flux of the luminaire; and a fourth acquisition module is configured to acquire a third preset correspondence relationship between the actual power consumption of the luminaire and the driving parameter, wherein the actual power consumption is that the luminaire reaches the target color. The sum of the power consumptions of the respective optical channels, the third preset correspondence satisfies the minimum value of the actual power consumption when the luminaire is the target color; the third solution module is used for the total luminous flux greater than or equal to the minimum target luminous flux, and the actual optical channel i When the luminous flux is less than or equal to the maximum luminous flux of the optical channel i, the third driving parameter value is obtained according to the first preset correspondence, the second preset correspondence, the third preset correspondence, and the range of the driving parameter, wherein the third driving is used. The parameter values drive the luminaire such that the actual power consumption of the luminaire for the target color is a minimum and the total luminous flux is greater than or equal to the minimum target luminous flux.

The actual power consumption of the luminaire is

The minimum actual power consumption is

In this system of equations, Equation 19 enables the total illuminance of the luminaire output to be a minimum, Equation 20 and Equation 21 enable the output color of the luminaire to be the target color, and Equation 22 can constrain the sum of the illuminances of the multiple optical channels of the luminaire to be greater than or equal to For the minimum illuminance of the luminaire, Equation 23 can constrain the actual illuminance of each optical channel in the luminaire to be less than or equal to the maximum illuminance of the channel. Equation 24 can constrain the driving parameter, that is, the duty cycle of the PWM dimming signal is between 0 and 1. . The driving parameter c _i solved by the formula 19 to the formula 24 is the third driving parameter value, and the third driving parameter value enables the luminaire to not only minimize the total power consumption of the luminaire, but also minimize the total power consumption of the luminaire. At the same time, the amount of light emitted by the luminaire is sufficient, that is, the total illuminance of the output is greater than or equal to the minimum illuminance of the luminaire.

Preferably, in order to further adjust the luminaire, the apparatus further includes: a fifth acquiring unit, configured to acquire optical radiant flux of any one of the at least three optical channels; and a sixth obtaining unit And a fourth preset correspondence relationship between the optical radiant flux and the driving parameter, where the fourth preset correspondence is used to limit the optical radiant flux to be in a predetermined range, wherein, according to the first preset correspondence, the second a preset driving relationship, a fourth preset correspondence, a maximum luminous flux of each optical channel, and a range of driving parameters, to obtain a fourth driving parameter value, wherein the fourth driving parameter value is used to drive the luminaire to make the illuminating flux of the luminaire In the predetermined range.

It should be understood that the above luminous flux can be calculated by illuminance conversion. That is, obtaining optical radiant flux of any one of the at least three optical channels; acquiring a fourth preset correspondence relationship between the optical radiant flux and the driving parameter, wherein the fourth preset correspondence is used to limit the optical radiant flux The fourth driving parameter value is obtained according to the first preset correspondence, the second preset correspondence, the fourth preset correspondence, the maximum luminous flux of each optical channel, and the range of driving parameters, where The luminaire is driven with a fourth drive parameter value such that the radiant flux of the luminaire is within a predetermined range.

The luminaire adjusting device of the embodiment of the invention is not limited to the first to the third embodiments, and the luminaire can be adjusted for the parameters of each optical channel. For example, limiting the range of optical radiation flux of a certain optical channel on the basis of the first scheme, or limiting the range of the output luminous flux of the white light on the basis of the second scheme, or limiting the power of an optical channel on the basis of the third scheme. Wait. After determining the constraints of the parameters for a certain optical channel, the values of the driving parameters are solved by combining the constraints and the equations of the corresponding schemes, thereby adjusting the luminaires by using the solved driving parameters.

It should be noted that since the luminous flux is proportional to the illuminance, the illuminance is proportional to the brightness. Therefore, adjusting the luminous flux by solving the driving parameter can also adjust the brightness and illuminance of the luminaire accordingly. Similarly, adjustment is needed in comparison with the brightness or brightness. At the same time, the above device can also be used to establish the relationship between the illuminance or the brightness and the luminous flux, so that the driving parameters can be solved to adjust the luminaire under the condition that a certain illuminance or brightness is satisfied.

It can be seen that, on the basis of satisfying the target color, the driving parameters can be solved for different constraints by the device provided by the above embodiments of the present invention, thereby achieving the purpose of adjusting the luminaire, so that the luminaire can achieve different performances. While none of the above-described embodiments are exhaustive of all of the constraints that can be adjusted by the luminaire, it should be understood that any means for adjusting the luminaire using the apparatus provided by embodiments of the present invention is within the spirit of the present invention.

Example 7

The luminaire control device of this embodiment is a configuration device for luminaire drive parameters, and the luminaire drive parameter configuration device is used for calibrating the luminaire. The so-called calibration refers to determining a drive parameter that matches the target color coordinate of the LED luminaire. Wherein, in the present invention, the LED lamp can be toned, and the LED lamp can include various types of lamps such as a wall washer, a stage lamp, a bulb lamp, a spotlight, a downlight, a panel lamp, and a ceiling lamp.

19 is a schematic diagram of a configuration apparatus of a lamp driving parameter according to an embodiment of the present invention. As shown in FIG. 19, the apparatus includes a control unit 1910.

Control component 1910 can be used to configure drive parameters for luminaire A. The luminaire A may have a plurality of monochromatic channels, and the illuminating light of the luminaire A may be a superposition of monochromatic light emitted by each of the plurality of monochromatic channels. 20 is a schematic view of a luminaire according to a first embodiment of the present invention. As shown in FIG. 20, the luminaire A may include a total of seven components A1 to A7, wherein A1 to A7 are respectively a lampshade, an LED light source panel, a DC driver, and a process. , communication module, DC regulated power supply and lamp housing. Among them, the communication module of A can be responsible for communicating with the control component 1910.

Control component 1910 can include a desktop or notebook computer, and control component 1910 can be an all-in-one with a touch screen and a processor. The control component 1910 and the lamp A can be wirelessly connected through WIFI, Bluetooth, ZigBee, infrared, 2.4G radio, etc., or can be wired through DMX512, 485, CAN, etc., or can directly be connected to the driver A3 of the lamp. Signal input port is connected. Specifically, the purpose of the control component 1910 communicating with the luminaire may include:

First, the control component 1910 can sequentially transmit the ratio of the PWM duty ratio or the amplitude of the analog dimming signal to each monochromatic channel of the luminaire according to the preset step size to control the illumination of each monochromatic channel of the luminaire.

Second, the control component 1910 sends the configured target drive parameters to the luminaire, and the luminaire can store the target drive parameters into the memory. For example, control component 1910 can program target drive parameters into the memory of the luminaire. Specifically, the control component 1910 can be connected to the program data programming port of the processor in the luminaire, or in the case of WIFI, Bluetooth, etc. having the remote update firmware function, the control component 1910 can be based on the corresponding communication protocol and control command. The target drive parameters are programmed into the memory of the luminaire. The driving parameters may include a driving current, a driving voltage, a driving power, and the like.

It should be noted that the luminaire represented by the luminaire A shown in FIG. 20 is a luminaire that has been completely assembled, that is, the luminaire A shown in FIG. 20 may be a finished luminaire. In the embodiment of the present invention, the lamp A can also be a lamp that only assembles some components, that is, the lamp A can be a semi-finished lamp. 21 is a schematic view of a luminaire according to a second embodiment of the present invention. As shown in FIG. 21, the luminaire A may include only four components A1 to A3 and A6, wherein A1 to A3 and A6 respectively represent the lampshade and LED of the luminaire. Light source board, DC driver and DC regulated power supply. Thus, correspondingly, the configuration device of the lamp driving parameters may include a control circuit board 2120, as shown in FIG. The control circuit board 2120 can include a communication module 21202 and a processor 21204. The communication module 21202 and the processor 21204 are respectively used to simulate the communication module A5 and the processor A4 of the luminaire, and the functions thereof are not described herein.

In the embodiment of the present invention, the control component 1910 may be configured to acquire target color coordinates of the emitted light and color coordinates of each of the plurality of monochrome channels, and may be based on the target color coordinates and the color of each of the monochrome channels. The coordinates determine the target illuminance for each of the monochrome channels, and the target drive parameters for each of the monochrome channels can be determined based on the target illuminance of each of the monochrome channels, and the target drive parameters for each of the monochrome channels can be configured to the luminaire.

Control component 1910 can include one or more of the following: a communication module, a processor, a memory, a user interface, and the like. The communication module may be responsible for communicating with the luminaire, the processor may be responsible for processing the communication protocol and the communication data, and may also be responsible for controlling the luminaire to store the target drive parameters, and may be responsible for processing the input information received by the user interface and on the user interface. Display the corresponding information and so on. The memory can be used to store target drive parameters and the like corresponding to the target color coordinates. The user interface can be used to receive configuration information input by the user, such as a serial port number, a network address of the luminaire, and the like.

Preferably, FIG. 22 is a schematic diagram of the structure of a control unit according to an embodiment of the present invention. As shown in FIG. 22, the control unit 1910 may include a first communication module 19102, a second communication module 19104, and a processor 19106. The first communication module 19102 is configured to acquire a plurality of driving parameter sample values and a plurality of illuminance sample values corresponding to each of the monochrome channels, wherein the plurality of driving parameter sample values and the plurality of illuminance sample values are in one-to-one correspondence . deal with The device 19106 is configured to perform a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each of the monochrome channels to obtain a fitting result, and determine, according to the fitting result, each monochrome channel Corresponding mapping relationship between driving parameters and illuminance, and determining a target driving parameter corresponding to the target illuminance of each monochrome channel based on the mapping relationship. The second communication module 19104 can be configured to configure target drive parameters for each of the monochrome channels to the luminaire.

In the embodiment of the present invention, the calibration of the luminaire can also be completed in a similar manner, that is, by setting the target color coordinate and recording the target driving parameter acquired based on the target color coordinate into the data table, in the luminaire The mapping relationship between the target color coordinates and the target driving parameters is calibrated before leaving the factory, and the recorded data table can be stored in the controller of the luminaire, so that the luminaire can quickly query using the pre-stored data table in the actual use process. Obtaining the target driving parameters of each monochromatic channel that matches the target color coordinates that it needs to achieve, thereby achieving the effect of further accelerating the adjustment speed of the illuminating light emitted by the luminaire, and reducing the calculation of the controller of the luminaire Ability requirements.

Preferably, the memory of the control component 1910 can also be used to store the target color coordinates of the luminaire, the target drive parameters, and the correspondence between the target color coordinates and the target drive parameters. For example, the memory can be used to store the aforementioned data table.

23 is a schematic diagram of a configuration apparatus of preferred luminaire drive parameters in accordance with an embodiment of the present invention. As shown in FIG. 23, this embodiment can be used as a preferred embodiment of the embodiment shown in FIG. 19. The configuration device of the lamp driving parameter of this embodiment includes a light blocking member 1920 and a control device 1910 including the above embodiment. Measuring component 1930.

The light-shielding space inside the light-shielding member 1920 can be used to set the light fixture. The luminaire can be configured to receive a plurality of drive parameter sample values corresponding to each of the monochrome channels, and each of the plurality of drive parameter sample values can be used to drive each of the monochrome channels.

The measuring component 1930 can be disposed in the light-shielding space and connected to the control component 1910, and can be used to measure the current illuminance value of each monochrome channel when each driving parameter sample value is driven for each monochrome channel, and The current illuminance value is taken as the illuminance sample value corresponding to each drive parameter sample value. 24 is a schematic diagram of the structure of a measuring component in accordance with an embodiment of the present invention. As shown in FIG. 24, the measuring component 1930 can include a tristimulus colorimetric module 19302 and a signal processing module 19304. The three-stimulus colorimetric module 19302 can include three sets of filters and corresponding photodiode L circuits. For example, the three sets of filters can be red light filter R, green light filter G, and blue light filter. B, which is used to measure the energy of the red, green, and blue bands of visible light, respectively. The signal processing module 19304 can be used to convert the signals measured by the tristimulus colorimetric module 19302 into color coordinates and illuminance. In particular, measurement component 1930 can be a colorimeter.

The first communication module 19102 is further configured to acquire an illuminance sample value corresponding to each driving parameter sample value of each monochrome channel measured by the measuring component 1930. After the first communication module 19102 acquires the illuminance sample value, it may be stored in a memory in the control unit 1910.

In the embodiment of the present invention, the color coordinates of each monochrome channel in the luminaire to be assembled can be obtained by:

The first communication module 19102 is further configured to acquire, when each driving parameter sample value is driven for each monochrome channel, a plurality of current color coordinates of each of the monochrome channels under the plurality of driving parameter sample values; and the processor 19106 It is also used to average a plurality of current color coordinates, obtain an average of a plurality of current color coordinates, and use the average value as the color coordinates of each monochrome channel. By averaging, more accurate measurements can be obtained.

Specifically, the color coordinates can be measured using a colorimeter. For example, Figure 25 is a schematic illustration of an alternative color space and color coordinates, in accordance with an embodiment of the present invention, and Figure 25 illustrates an alternative luminaire including three red, green, and blue monochromatic channels. The measurement of the color coordinates of the channel. Specifically, the xy coordinate system shown in FIG. 25 may represent a coordinate system in which the color space is located, wherein the abscissa x may represent a proportion of one of the three colors, and the ordinate y may represent another ratio. Then, the proportion of the remaining one color can be expressed by (1-xy). The area identified by the broken line in FIG. 25 may represent the color gamut of CIE 1931, which may be regarded as a set of colors that can be recognized by the human eye, and each coordinate point in the color gamut may express one color. . Figure 25 by The area identified by the solid line may represent the tunable field of the luminaire, that is, the illuminating light of the luminaire as a whole that can be combined by adjusting the driving parameters of each of the three monochromatic channels included in the luminaire The set of colors, specifically, the three vertices Pr, Pg, Pb of the color gamut identified by the solid line respectively represent the color coordinate points of the three monochrome channels, wherein Pr can be measured by the colorimeter The color coordinate point of the red light channel, Pg may be the color coordinate point of the green light channel measured by the colorimeter, and Pb may be the color coordinate point of the blue light channel measured by the colorimeter. In the above scenario, by adjusting the driving parameters of the three monochrome channels, any color that is located in the toning field identified by the solid line can be superimposed, for example, represented by the color coordinate point Pw in FIG. White etc.

Based on this, according to an embodiment of the present invention, the control unit 1910 can obtain the target illuminance of each channel according to the target color coordinates of the emitted light of the luminaire and the color coordinates of each of the monochrome channels. Specifically, the illuminance corresponding to each of the plurality of monochrome channels can represent the light output ratio of each channel, and then the output light of each monochromatic channel at different ratios can be combined to form a desired The color or the color coordinates of the light emitted by the luminaire. More specifically, as an alternative, in the embodiment of the present invention, the control unit 1910 can determine the target illuminance of each of the monochrome channels based on the target color coordinates and the color coordinates of each of the monochrome channels in the following manner:

First, a color mixing region in which the color coordinates of each monochrome channel are vertices is generated in a preset color coordinate space. Next, it is judged whether or not the target color coordinate is in the color mixing area. Again, if it is determined that the target color coordinates are within the color mixing region, the illuminance ratio of each of the monochrome channels is determined based on the positional relationship of the target color coordinates and the color coordinates of each of the monochrome channels. Next, the product of the total illuminance of the emitted light and the illuminance ratio is calculated. Then, the product is taken as the target illuminance for each monochrome channel.

Specifically, in the embodiment of the present invention, the target driving parameter may represent a physical parameter for driving each of the monochrome channels in the luminaire and functioning as an adjustment to the illuminance of each of the monochrome channels, for example, in the present invention. In some embodiments, the target drive parameter may be a voltage amplitude of the analog voltage signal, and in other embodiments, the target drive parameter may also be a digital pulse width modulation PWM (Pulse Width Modulation) signal. The duty ratio or the like, wherein the target driving parameter can generally correspond to the output of the driving circuit of the luminaire, which is not limited in the present invention.

In another aspect, in the embodiment of the present invention, the target driving parameter may be acquired based on a pre-established driving model of each monochrome channel. For example, as an optional manner, in the embodiment of the present invention, the target driving parameters of each monochrome channel can be obtained by:

First, a plurality of driving parameter sample values and a plurality of illuminance sample values corresponding to each channel are matched in advance, wherein the plurality of driving parameter sample values are in one-to-one correspondence with the plurality of illuminance sampling values; then, Corresponding relationship between the driving parameter corresponding to each channel and the target illuminance is obtained according to the result of the fitting process; then, the driving parameters of each channel corresponding to the target illuminance of each channel are acquired according to the corresponding relationship.

In the embodiment of the present invention, for each monochrome channel in the luminaire, the sampling values of the plurality of driving parameters measured in advance and the illuminance sampling values may be first fitted, and then the result is determined according to the fitting result. The correspondence between the driving parameters of the monochrome channel and the target illuminance. Simply, for a luminaire with a high degree of linearity between the drive parameters and the illuminance, such as a light emitting diode LED (Light Emitting Diode) luminaire controlled by a voltage signal below a certain voltage threshold or a PWM signal below a certain frequency threshold. In other words, the above fitting process can adopt a linear fitting method. However, this is not the only embodiment of the present invention. For example, for a luminaire with poor linearity, other fitting methods may be used to obtain a correspondence between more complex driving parameters and target illuminance. Not limited.

Based on this, in the embodiment of the present invention, the foregoing fitting result may be a result obtained by a linear fitting method or a result obtained by using an interpolation method.

Specifically, linear fitting can be performed in the following manner, and a linear fitting result is obtained:

Linearly fitting a plurality of driving parameter sample values and a plurality of illuminance sampling values; wherein, the correspondence is obtained according to the result of the linear fitting: E=p*c+E0, wherein E represents the target illuminance of each channel, c Representing the driving parameters of each channel, p and E0 are constant coefficients; wherein, specifically, the driving parameters of each channel can be obtained according to the following formula: c=(E-E0)/p.

Fig. 26 is a diagram showing the result of linear fitting of the driving parameter sample value and the illuminance sample value according to the first embodiment of the present invention, taking the fitting result shown in Fig. 26 as an example. In FIG. 26, a black solid dot may represent a sampling point, and an abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and an ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. It can be seen from Fig. 26 that, for a monochrome channel, the linearity between the driving parameter and the illuminance is better, so it can be fitted by a linear fitting fitting method, and the fitting result can be It is the straight line shown in Fig. 26. In the above scenario, the constant coefficient p may be the slope of the straight line, and the constant coefficient E0 may be approximately zero, that is, the duty ratio as the driving parameter is substantially proportional to the target illuminance.

Specifically, interpolation fitting can be performed in the following manner, and a linear fitting result is obtained:

The interpolation method is used to fit the plurality of driving parameter samples and the plurality of illuminance sampling values; wherein, the correspondence is obtained according to the result of the fitting process: E=(E2-E1)*(c-c1)/(c2- C1) + E1, where E represents the target illuminance of each channel, c represents the drive parameter of each channel, c1 represents one of the plurality of drive parameter sample values and c1 < c, c2 represents a plurality of drive parameter sample values And c2>c, E1 represents one of the plurality of illuminance sample values corresponding to c1, and E2 represents one of the plurality of illuminance sample values corresponding to c2; wherein, the drive parameter of each channel is obtained according to the following calculation formula: c = (c2-c1)*(E-E1)/(E2-E1)+c1.

Fig. 27 is a diagram showing the result of interpolation fitting of the drive parameter sample value and the illuminance sample value according to the second embodiment of the present invention, taking the fitting result shown in Fig. 27 as an example. In FIG. 27, a black solid dot may represent a sampling point, and an abscissa value of the sampling point may represent a driving parameter sampling value, that is, a preset value of a plurality of PWM duty ratios, and an ordinate value of the sampling point may be The illuminance sample value, that is, the illuminance value of the measured monochrome channel at each of the plurality of PWM duty cycles. Different from the foregoing processing method of linear fitting, in the embodiment of the present invention, a plurality of sampling points are matched by using an interpolation method, and specifically, the processing method of the interpolation method can be regarded as using a connection. a polyline of a plurality of sampling points to indicate a correspondence between a driving parameter of each channel and a target illuminance, that is, within a value interval between two adjacent sampling points, the correspondence may be connected by A line segment between two adjacent sampling points is represented.

In the above scenario, the result of the fitting process performed by the interpolation method may be a polyline connecting a plurality of sampling points in FIG. 27, and further between the driving parameters of the monochrome channel corresponding to the group of sampling points and the target illuminance. The correspondence can be represented by the polyline. For example, for the value interval between two adjacent sampling points (c1, E1) and (c2, E2) in FIG. 27, the target illuminance E corresponding to any driving parameter c can be expressed as:

E=(E2-E1)*(c-c1)/(c2-c1)+E1,

c=(c2-c1)*(E-E1)/(E2-E1)+c1.

Two specific implementations of the fitting process are provided by the above two examples. However, it should be understood that the specific fitting processing method used in the embodiments of the present invention is not limited to the above two types, for example, Other more complicated non-linear curve fitting processes, such as cubic spline interpolation, etc., in addition, in some embodiments of the present invention, other processing methods of neural networks or function approximation may also be used, etc. The invention does not limit this.

On the other hand, as can be seen from the above description, as an alternative manner, the illumination sample values of each monochrome channel can be obtained by: first, selecting a plurality of drive parameter sample values corresponding to each channel; Next, each monochrome channel is driven using each of the plurality of drive parameter sample values; then, each channel is driven while using each drive parameter sample value to obtain the current of each channel Illuminance is taken as the illuminance sample value corresponding to each drive parameter sample value.

On this basis, further optionally, in the embodiment of the present invention, the color coordinates of each monochrome channel can be obtained by: firstly, when each channel is driven by using each driving parameter sample value, The current color coordinate of each channel; then, the average of the plurality of current color coordinates acquired under the plurality of drive parameter sample values is taken as the color coordinate of each channel.

That is, in the embodiment of the present invention, the color of the monochrome channel under the sampling value of each driving parameter may be compared while the driving parameter is scanned to calibrate the correspondence between the driving parameter of the monochrome channel and the target illuminance. The coordinates are measured, and the average of the measured plurality of color coordinates can be used as the color coordinates of the monochrome channel. In this way, interference factors from the inside or outside of the colorimeter can be further eliminated, such as the influence of temperature on the measurement inaccuracy caused by the colorimeter, so as to achieve more color coordinates of the emitted light of the lamp. To drive the control accurately.

In the embodiment of the present invention, the target color coordinates may include a plurality, such that the control component 1910 may further be configured to acquire each of the plurality of target color coordinates, and based on each of the target color coordinates and each of the monochrome colors. The color coordinates of the channel determine the target illuminance of each of the monochrome channels corresponding to each of the target color coordinates, and determine the target illuminance based on the target illuminance of each of the monochrome channels corresponding to each of the target color coordinates Corresponding target driving parameters of each monochrome channel, and storing target driving parameters of each monochrome channel corresponding to each target color coordinate into the data table, and each corresponding to each target color coordinate The target drive parameters of a single monochrome channel are configured to the luminaire in the form of a data table.

Based on the above description, in some embodiments of the present invention, the calibration of the luminaire can also be accomplished in a similar manner. In an embodiment of the present invention, the calibration process of the luminaire may be as follows: selecting a plurality of target color coordinates; acquiring and matching color coordinates according to each of the plurality of target color coordinates and each channel; The target illuminance of each corresponding channel; wherein, each of the driving parameters of each channel is obtained as a driving parameter corresponding to each channel and each, and the obtained corresponding driving parameters are recorded in In the data table, wherein the target color coordinates that the light needs to reach at present are determined; the driving parameters corresponding to each channel and the target color coordinates that need to be reached are searched in the data table; each channel is performed using the found driving parameters. drive.

In other words, in the embodiment of the present invention, the target color coordinate and the driving may be calibrated before the lamp is shipped, by setting the target color coordinate and recording the driving parameter obtained based on the target color coordinate into the data table. The mapping relationship between the parameters, and the recorded data table can be stored in the controller of the luminaire, so that the luminaire can use the pre-stored data table to quickly query and obtain the target color coordinate to be achieved in the actual use process. Matching the driving parameters of each of the monochromatic channels, thereby achieving the effect of further accelerating the adjustment speed of the illumination of the luminaire, and reducing the computational power requirements of the luminaire's controller.

The technical solutions of the present invention and the working principles thereof are explained in the above manner, but it should be understood that the above embodiments are only used to understand the present invention and are not to be construed as limiting the present invention. For example, in the foregoing embodiment, the illuminance matching of each channel is described by taking three monochrome channels of red, green, and blue as an example. However, in other embodiments of the present invention, the color of the monochrome channel is not limited to The three primary colors, for other monochrome channels, can still obtain each by determining the tunable domain with its color coordinates as the vertices and combining the target color coordinates. The target illuminance of the channel, in fact, even for a luminaire with only two monochromatic channels, the color coordinates of the two monochromatic channels in the color coordinate space can be obtained by adjusting the driving parameters thereof. Various colors on the line segments of the vertices.

Preferably, in the embodiment of the present invention, the control component 1910 may be a cloud server. Specifically, the cloud server has the functions of the processor and the memory in the foregoing control component 1910, and details are not described herein again. In addition, the cloud server may also have some functions of the first communication module and the second communication module in the control component 1910. For example, the cloud server may program the target driving parameters into the memory of the luminaire by using an external sending module, for example, the cloud. The server can control the measuring component 1930 to measure the color coordinates, illuminance, and the like of each of the monochrome channels of the luminaire. Specifically, referring to the foregoing control component 1910, it will not be described again.

28 is a schematic illustration of another preferred luminaire drive parameter configuration device in accordance with an embodiment of the present invention. As shown in FIG. 28, this embodiment can be taken as a preferred embodiment of the foregoing embodiment, and the configuration device of the lamp driving parameter of this embodiment includes, besides the control member 1910, the light blocking member 1920, and the measuring member 1930 of the foregoing embodiment, A detection component 1940 and an adjustment component 1950 are included.

The detecting component 1940 can be disposed within the light-shielding space, which can be used to detect an ambient temperature within the light-shielding space.

Adjustment component 1950 can be used to adjust the ambient temperature within the occlusion space. Therein, the control component 1910 can be coupled between the detection component 1940 and the adjustment component 1950, which can be used to acquire the detected ambient temperature and control the operational state of the adjustment component 1950 based on the detected ambient temperature.

For example, detection component 1940 can include a temperature sensor. The temperature sensor can be used to detect an ambient temperature, wherein the temperature sensor is spaced from the luminaire by a first predetermined distance. The adjustment component 1950 can include a temperature control device such as a fan and an air conditioner. Among them, a fan, an air conditioner, or the like can be used to reduce the ambient temperature in the light-shielding space by blowing air into the light-shielding space. Wherein, the control component 1910 can be connected between the temperature sensor and the fan for acquiring the ambient temperature and controlling the operating state of the fan according to the ambient temperature.

In particular, the detection component 1940 can collect ambient temperatures around the luminaire. Adjustment component 1950 can be used to adjust the ambient temperature within the occlusion space.

The control unit 1910 can be connected between the detecting unit 1940 and the adjusting unit 1950 for acquiring the ambient temperature collected by the detecting unit 1940, and for controlling the opening or stopping of the adjusting unit 1950 according to the collected ambient temperature. Specifically, when the temperature in the light-shielding space is higher or lower than the normal working temperature of the lamp, the adjusting member 1950 can be controlled to be turned on, thereby reducing or increasing the temperature in the light-shielding space to meet the requirement of the normal operation of the lamp. When the temperature in the opaque space is equal to the temperature at which the luminaire is operating normally, the adjustment component 1950 can be controlled to shut down. Among them, the control unit 1950 can be turned on or off by the relay.

It should be noted that the control component 1910 may include one or more independent temperature controllers, the temperature controller may be connected between the detecting component 1940 and the regulating component 1950, or the control component 1910 may include a temperature control module directly passing the temperature. The control module controls the temperature within the occlusion space. The temperature control module can be responsible for temperature acquisition, and compares the collected temperature value with a preset temperature value, and performs an operation by a control algorithm to obtain a time condition for the relay to close. The above control algorithm may be a proportional integral differential PID control algorithm.

Optionally, a control panel can be set on the temperature controller, and a button can be set on the control panel, and the preset temperature value can be input through the button. Alternatively, a seven-segment LED display can be placed on the control panel to display the measured temperature.

Optionally, in the embodiment of the present invention, the LED light color parameter configuration device may include a relay. The relay can be connected between the control component 1910 and the regulating component 1950, and the regulating component 1950 is connected to the power source via a relay. The relay can be used to control the on and off of the fan power supply.

Optionally, in the embodiment of the present invention, the configuration device may further be included in an analog-to-digital converter ADC. The ADC is coupled between the detecting component 1940 and the control component 1910 for sampling the collected temperature signal of the detecting component 1940 according to a preset sampling period and transmitting the sampling data to the control component 1910.

With the embodiment of the present invention, since the control unit 1910, the detecting unit 1940, and the adjusting unit 1950 can simulate the ambient temperature required for normal operation of the luminaire, it is possible to ensure that the measurement result of the measuring unit 1930 is more accurate.

Preferably, in an embodiment of the invention, the detecting component 1940 can include a temperature sensor. The temperature sensor can be used to collect the ambient temperature around the luminaire, wherein the temperature sensor is spaced from the luminaire by a first predetermined distance. Adjustment component 1950 can include a fan. The fan can be used to blow air into the shaded space. Wherein, the control component 1910 can be connected between the temperature sensor and the fan, and the control component 1910 can be used to obtain the ambient temperature around the luminaire and control the fan to be turned on or off according to the ambient temperature around the luminaire. Specifically, a temperature sensor may be disposed on an inner wall of the light shielding member 1920, and a fan may be connected to the temperature sensor through the control member 1910. In this way, it is possible to ensure that the luminaire simulates the ambient temperature required for normal operation, thereby ensuring that the measurement result of the measuring component 1930 is more accurate.

As another example, the sensing component 1940 can include a thermocouple. The thermocouple can be used to be disposed on the first side of the light source panel of the luminaire and to collect the temperature of the luminaire, wherein the first side is provided with a plurality of LED chips. The adjustment component 1950 can include a refrigeration or a heater. A refrigeration or heater may be provided on the second side of the light source panel and perform a refrigeration process or a heat treatment on the luminaire, wherein the control component 1950 may be coupled to the thermocouple and the refrigeration or heater In between, it can be used to obtain the collected temperature and control the cooling or heat treatment of the lamp by the refrigeration or the heater according to the collected temperature.

29 is a schematic view showing a combined structure using a thermocouple and a refrigerating or heating device according to an embodiment of the present invention. As shown in FIG. 29, in the embodiment of the present invention, A2 may represent an aluminum substrate. The control unit 1910 can be connected between the thermocouple 19402 and the refrigerating or heating device 19502 for acquiring the temperature collected by the thermocouple 19402 and controlling the cooling or heating device 19502 to cool or modulate the lamp according to the temperature collected by the thermocouple 19402. heat. In this way, since the cooling or heating device 19502 is disposed close to the LED light source panel A2, the luminaire can be quickly heated, so that the temperature environment required for the normal operation of the luminaire can be entered more quickly, thereby saving color grading time and improving color grading efficiency. . It should be noted that the cooling or heating device 19502 can be powered by a DC power source. Figure 30 is a schematic illustration of a separate structure employing a thermocouple and a refrigerating or heating device, as shown in Figures 29 and 30, in accordance with an embodiment of the present invention. 29 is a schematic diagram showing a combined structure of the LED light source panel A2 and the cooling or heating device 19502, and FIG. 30 is a schematic diagram showing the separated structure of the LED light source panel A2 and the cooling or heating device 19502. In FIG. 29 and FIG. 30, the LED light source panel A2 is provided with a plurality of LEDs, the thermocouple 19402 is disposed near the LED, and the cooling or heating device 19502 includes a cooling plate and a heating plate (not shown), two The positive and negative electrodes of the DC power supply are respectively disposed on the boards.

In the case where the temperature control is required to be high, that is, the scene in which the color of the luminaire is highly stable when the temperature changes, the aforementioned scheme using the fan and the external temperature sensor is not accurate. At this time, the arrangement of the semiconductor cooling or heating device 19502 and the LED light source panel A2 shown in FIG. 29 may be employed, and the thermocouple 19402 may be mounted at a certain position or positions of the LED light source panel A2 near the LED. The semiconductor refrigeration or heater 19502 is responsible for cooling or heating the LED light source panel A2 to control its operating temperature more quickly and accurately. The semiconductor refrigeration or heater 19502 is directly driven by a DC power source. The direction in which the DC power source is connected determines its operation in the state of cooling or heating. The control component 1910 compares the temperature of the LED light source panel A2 collected by the thermocouple 19402 with a preset temperature, and if it is higher than the preset temperature, supplies power to the cooling or heating device 19502 to reduce the temperature of the luminaire; Power is supplied to achieve temperature rise of the luminaire. Further, the cooling or heating process can be controlled by PID, so that the temperature control of the LED light source panel A2 can be made faster and more accurate, and the temperature overshoot can be reduced.

It should be noted that, in the embodiment of the present invention, the light shielding member 1920 may be a shutter, and the measuring component 1930 may be a colorimeter, wherein the inner wall of the first end of the shutter is provided with a first connecting component, the first connection The component is connected to the luminaire, the second end of the second end of the shutter is provided with a second connecting component, the second connecting component is connected with the colorimeter, and the luminaire and the colorimeter are separated by a second preset distance, second The preset distance is a preset multiple of the geometry of the illuminated face of the luminaire. For example, the second predetermined distance is 10 times the diameter of the light emitting face of the luminaire. In this way, the light emitting surface of the luminaire can be approximated as a point light source at the probe of the measuring component 1930, thereby ensuring that the light emitted by each of the monochrome channels in the luminaire is sufficiently mixed at the probe, thereby improving the measurement result of the measuring component 1930. accuracy.

Specifically, the second preset distance can be determined by two factors:

Factor One determines a second preset distance according to a maximum range of the measuring component 1930, wherein the maximum range may be a metric range. In the state where the respective monochrome channels of the luminaire are fully illuminated, the illuminance at the probe cannot exceed the maximum range. If the maximum illumination of the luminaire exceeds the maximum range, the distance between the two can be increased.

Factor 2, determining a second preset distance according to a minimum accuracy of the measuring component 1930, wherein the minimum precision may be a minimum illuminance. During the toning process, the illumination of the weakest light that the luminaire may emit at the probe should not be less than the minimum accuracy of the measurement component 1930. If the minimum illumination of the luminaire is less than the minimum accuracy, the distance between the two can be reduced.

Preferably, based on factor one and factor two, the length of the light blocking member 1920 can be adjusted for telescoping.

Specifically, the shutter may be a closed shading member, and the material of the shutter may be an opaque material. A layer of light absorbing material may be attached to the inner wall of the shutter. This layer of material absorbs most of the incident light, it also reflects a small portion of the light, and the light absorbing material does not change the color of the reflected light. Preferably, the light absorbing material may be a black shading cloth, such as a black flannel.

The embodiment of the invention further provides a lamp control system, wherein the lamp control system is a configuration system of a lamp driving parameter, wherein the lamp driving parameter configuration system is used for simultaneously calibrating a plurality of lamps, that is, the lamp driving parameter The configuration system can be used to configure corresponding driving parameters for a plurality of lamps at the same time, each of the plurality of lamps has a plurality of monochrome channels, and each of the lamps emits a single color of a plurality of monochrome channels. The superposition of light.

It should be noted that the configuration system of the lamp driving parameter may include a plurality of the foregoing shading members, and the shading members are in one-to-one correspondence with the lamps, that is, one lamp may be disposed inside each of the shading members. In addition, the configuration system of the lamp driving parameter may further include a plurality of measuring components as described above, and the measuring component and the light shielding component are also in one-to-one correspondence, that is, one measuring component may be disposed inside each of the light shielding components. At the same time, the configuration system of the luminaire driving parameters may further comprise the aforementioned control component, which may be used to configure corresponding driving parameters for each of the plurality of luminaires. The principle and process for the control component to configure the driving parameters for each luminaire correspond to the principles and processes of the configurating device for the luminaire driving parameters described above, and are not described herein again.

Preferably, in addition to the control component 1910 in the configuration device of the aforementioned lamp driving parameter, other components in the configuration device of the lamp driving parameter may be correspondingly copied, and the corresponding portion after the copying may be configured with the lamp driving parameter. The control components are connected to achieve the purpose of simultaneously calibrating multiple lamps. Among them, each set of copy parts other than the control part can be a test unit.

31 is a schematic diagram of a luminaire control system according to an embodiment of the present invention. As shown in FIG. 31, the luminaire control system, that is, the control component of the luminaire drive parameter configuration system, can simultaneously connect at least two sets of test units, each set of test units can be Calibrate a fixture. among them:

The control component may include a processor, a memory, and a user interface, and may include a first communication module, a second communication module, and a third communication module. The functions of the processor, the memory, and the user interface are similar to those described above, and are not described herein again. The first communication module can be connected to a plurality of luminaires at the same time for communicating with a plurality of luminaires. The second communication module can be connected to a plurality of temperature control components at the same time. The third communication module can be connected to a plurality of measurement components at the same time. Each luminaire can be the luminaire shown in FIG. 20 and FIG. 21, and details are not described herein again. Each measurement component can include a processor, a light color measurement module, and a communication module. In addition, each test unit may further include a temperature sensor, a temperature controller, and a fan, wherein the connection relationship of each part is as shown in the drawing, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A luminaire control method, comprising:

Obtain the color coordinates of the monochrome channel of the luminaire;

Obtaining driving parameters of the monochrome channel of the luminaire according to color coordinates of the monochrome channel of the luminaire;

The luminaire is controlled in accordance with the drive parameters.
The luminaire control method according to claim 1, wherein the luminaire control method is a driving method of the luminaire, wherein:

Obtaining color coordinates of the monochrome channel of the luminaire includes: acquiring color coordinates of each of the plurality of monochrome channels, wherein the luminaire includes the plurality of monochrome channels, and the illuminating light of the luminaire is the plurality of Superposition of monochromatic light emitted by each of the monochromatic channels;

Obtaining the driving parameter of the monochrome channel of the luminaire according to the color coordinate of the luminaire monochrome channel comprises: acquiring the target illuminance of each channel according to the target color coordinate of the emitted light and the color coordinate of each channel; Obtaining driving parameters of each of the channels corresponding to the target illuminance of each channel;

Controlling the luminaire in accordance with the drive parameters includes driving each of the channels using the acquired drive parameters for each of the channels.
The luminaire control method according to claim 2, wherein the acquiring driving parameters of each channel corresponding to the target illuminance of each channel comprises:

Performing a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel that are acquired in advance, wherein the plurality of driving parameter sampling values and the plurality of illuminance sampling values are one by one correspond;

Obtaining a correspondence between a driving parameter corresponding to each channel and a target illuminance according to a result of the fitting process;

And acquiring, according to the correspondence relationship, driving parameters of each channel corresponding to the target illuminance of each channel.
The luminaire control method according to claim 3, wherein before the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each of the channels acquired in advance are fitted, The luminaire control method further includes:

Selecting the plurality of driving parameter sample values corresponding to each of the channels;

Each of the channels is driven using each of the plurality of drive parameter sample values;

When each of the channels is driven using the each drive parameter sample value, the current illuminance of each channel is acquired as an illuminance sample value corresponding to each of the drive parameter sample values.
The luminaire control method according to claim 4, wherein the acquiring the color coordinates of each of the plurality of monochrome channels comprises:

Obtaining a current color coordinate of each channel when each of the channels is driven using the each driving parameter sample value;

An average of a plurality of the current color coordinates acquired under the plurality of driving parameter sample values is used as a color coordinate of each of the channels.
The luminaire control method according to claim 3, wherein

Performing a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel that are acquired in advance includes: sampling the plurality of driving parameter values and the plurality of illuminance sampling values Perform a linear fit;

Acquiring the correspondence between the driving parameter corresponding to each channel and the target illuminance according to the result of the fitting process comprises: obtaining the correspondence according to the result of the linear fitting: E=p* c+E 0 , where E represents the target illuminance of each channel, c represents the driving parameter of each channel, and p and E 0 are constant coefficients;

And obtaining, according to the correspondence, the driving parameters of each channel corresponding to the target illuminance of each channel, comprising: acquiring driving parameters of each channel according to the following calculation formula: c=(EE 0 )/ p.
The luminaire control method according to claim 3, wherein

Performing a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel that are acquired in advance includes: sampling the plurality of driving parameter samples by interpolation and the plurality of The illuminance sample value is subjected to a fitting process;

Acquiring the correspondence between the driving parameter corresponding to each channel and the target illuminance according to the result of the fitting process includes: obtaining the correspondence according to the result of the fitting process: E=(E 2 - E 1 ) * (cc 1 ) / (c 2 - c 1 ) + E 1 , where E represents the target illuminance of each channel, c represents the drive parameter of each channel, and c 1 represents One of a plurality of drive parameter sample values and c 1 <c, c 2 represents one of the plurality of drive parameter sample values and c 2 >c, and E 1 represents the plurality of illuminance sample values and c 1 Corresponding one, E 2 represents one of the plurality of illuminance sample values corresponding to c 2 ;

Acquiring the driving parameters of each channel corresponding to the target illuminance of each channel according to the corresponding relationship includes: acquiring driving parameters of each channel according to the following calculation formula: c=(c 2 -c 1 ) *(EE 1 )/(E 2 -E 1 )+c 1 .
The luminaire control method according to any one of claims 2 to 7, wherein the target illuminance of each channel is obtained according to a target color coordinate of the emitted light and a color coordinate of each channel include:

Generating a color mixing region in which a color coordinate of each channel is a vertex in a preset color coordinate space;

If the target color coordinate is located in the color mixing region, obtaining an illumination ratio of each channel according to a relative positional relationship between the target color coordinates and color coordinates of each channel;

The product of the sum of the illuminances of the emitted light and the illuminance ratio of each of the channels is taken as the target illuminance of each of the channels.
A lamp control method according to any one of claims 2 to 7, wherein

Obtaining the target illuminance of each channel according to the target color coordinates of the emitted light and the color coordinates of each channel includes: selecting a plurality of the target color coordinates; according to the plurality of target color coordinates Each of the color coordinates of each of the channels acquires a target illuminance of each of the channels corresponding to each of the channels;

And acquiring the driving parameters of each channel corresponding to the target illuminance of each channel includes: acquiring driving parameters of each channel under each of the channels as each channel and each of the channels a corresponding driving parameter, and the obtained corresponding driving parameters are recorded in the data table;

The driving the each channel by using the acquired driving parameters of each channel includes: determining a target color coordinate that the outgoing light currently needs to reach; searching and describing each channel in the data table The driving color parameters corresponding to the target color coordinates that need to be achieved are driven by using the found driving parameters.
The luminaire control method according to claim 1, wherein the luminaire control method is a statistical method of light color parameters, wherein:

Obtaining color coordinates of the monochrome channel of the luminaire includes: respectively acquiring color coordinates of each monochrome channel of each of the plurality of luminaires and mean and covariance of color coordinates of each of the plurality of luminaires;

Obtaining the driving parameter of the monochrome channel of the luminaire according to the color coordinate of the monochrome channel of the luminaire comprises: determining, according to the mean value and covariance of the color coordinates of each of the monochrome channels of the plurality of luminaires, performing calibration processing Whether each of the monochrome channels corresponding to one or more lamps meets a preset condition;

Controlling the luminaire according to the driving parameter comprises: determining a common color gamut range of the plurality of luminaires according to color coordinates of respective monochrome channels of each of the plurality of luminaires that meet the preset condition.
The luminaire control method according to claim 10, wherein determining the common color gamut range comprises:

Determining a gamut polygon of each of the luminaires according to color coordinates of each of the monochrome channels of each of the luminaires;

Obtaining the intersection of the common color gamut polygon of the n lamps and the color gamut polygon of the n+1th luminaire as the common color gamut of n+1 luminaires according to the value of n from small to large, until the common color gamut is obtained The range, where n is a positive integer greater than or equal to 1, and when n is equal to 1, the common gamut polygon of one luminaire is taken as the gamut polygon of the first luminaire.
The luminaire control method according to claim 11, wherein the one or more lamps corresponding to the calibration process are determined according to the mean value and the covariance of the color coordinates of the respective monochrome channels of the plurality of lamps Whether each monochrome channel meets the preset conditions includes:

Get the color coordinates of the i-th monochrome channel of the jth fixture, and set it to

Calculate the statistic according to the following formula:

among them,
Indicates the mean of the color coordinates of the i-th monochrome channel of the N lamps that have been counted,
a covariance representing the color coordinates of the i-th monochrome channel of the N lamps,
Express
Inverse matrix

will
Compare with the preset threshold T, if
If it is greater than T, it means
The corresponding luminaire does not meet the preset condition, where T is a threshold obtained according to a preset confidence.
The luminaire control method according to claim 12, wherein the luminaire control method after determining whether each corresponding monochrome channel of the one or more luminaires after the calibration process is subjected to the calibration process meets a preset condition Also includes:

In the process of acquiring the public color gamut range, the gamut polygon of the luminaire that is determined to not meet the preset condition is not acquired.
The luminaire control method according to claim 10, wherein the color coordinate of each of the monochrome channels of each of the luminaires is an average of the plurality of measurements of the color coordinates of the monochrome channel of the luminaire.
The luminaire control method according to claim 1, wherein the luminaire control method is a luminaire adjustment method, and the luminaire comprises at least three optical channels, wherein:

Obtaining a color coordinate of the monochrome channel of the luminaire includes: acquiring a first preset correspondence relationship between the total luminous flux of the luminaire and the driving parameter, wherein the total luminous flux is a sum of luminous fluxes of the at least three optical channels; a second predetermined correspondence between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire to be the target color; and obtain a maximum luminous flux of each optical channel in the luminaire; Obtaining a range of the driving parameters;

Obtaining, according to the color coordinates of the monochrome channel of the luminaire, driving parameters of the monochrome channel of the luminaire, including: according to the first preset correspondence, the second preset correspondence, and the maximum luminous flux of each optical channel And a range of the driving parameter, and obtaining a driving parameter value that causes the total luminous flux to reach a preset condition;

Controlling the luminaire in accordance with the drive parameter includes adjusting the luminaire with the drive parameter value.
The luminaire control method according to claim 15, wherein the first preset correspondence satisfies the total luminous flux of the luminaire reaches a maximum value, according to the first preset correspondence, the second preset Corresponding relationship, a maximum luminous flux of each of the optical channels, and a range of the driving parameters, and obtaining driving parameter values that cause the total luminous flux to reach a preset condition include:

When the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, the second preset correspondence, and the range of the driving parameter, The total luminous flux reaches the maximum value when a driving parameter value is used to drive the luminaire to reach a target color, wherein the optical channel i is any one of the at least three optical channels.
The luminaire control method according to claim 16, wherein the first preset correspondence, the second preset correspondence, the maximum luminous flux of each optical channel, and the range of the driving parameter are The driving parameter values obtained to bring the total luminous flux to a preset condition include:

Obtaining the maximum power consumption of the luminaire;

Obtaining actual power consumption of the luminaire, wherein the actual power consumption is a sum of power consumption of each optical channel when the luminaire reaches the target color;

When the actual power consumption of the luminaire is less than or equal to the maximum power consumption, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, the first The second preset correspondence and the range of the driving parameter obtain the second driving parameter value to drive the luminaire to reach the target color, the actual power consumption does not exceed the maximum power consumption of the luminaire, and the total luminous flux of the luminaire reaches the maximum value.
The luminaire control method according to claim 15, wherein the first preset correspondence, the second preset correspondence, the maximum luminous flux of each optical channel, and the range of the driving parameter are The driving parameter values obtained to bring the total luminous flux to a preset condition include:

Obtaining a minimum target luminous flux of the luminaire for the target color;

Obtaining a third preset correspondence between the actual power consumption of the luminaire and the driving parameter, where the actual power consumption is a sum of power consumptions of the optical channels when the luminaire reaches the target color, and the third The preset corresponding relationship satisfies that the actual power consumption is the minimum value when the luminaire is the target color;

When the total luminous flux is greater than or equal to the minimum target luminous flux, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence relationship and the second preset correspondence relationship And the third preset correspondence relationship and the range of the driving parameter obtain a third driving parameter value, wherein the luminaire is driven by the third driving parameter value, so that the luminaire is an actual function of the target color The minimum value is consumed and the total luminous flux is greater than or equal to the minimum target luminous flux.
The luminaire control method according to any one of claims 15 to 18, wherein the luminaire control method further comprises:

Obtaining an optical radiant flux of any one of the at least three optical channels;

Obtaining a fourth preset correspondence relationship between the optical radiant flux and the driving parameter, where the fourth preset correspondence is used to limit the optical radiant flux to be within a predetermined range,

According to the first preset correspondence, the second preset correspondence, the fourth preset correspondence, the maximum luminous flux of each optical channel, and the range of the driving parameter, the fourth is obtained. Driving parameter values, wherein the luminaire is driven with the fourth drive parameter value such that the radiant flux of the luminaire is within the predetermined range.
A luminaire control device, comprising:

a first acquisition total module, configured to obtain color coordinates of a monochrome channel of the luminaire;

a second acquisition total module, configured to acquire driving parameters of the monochrome channel of the luminaire according to color coordinates of the monochrome channel of the luminaire;

A control module is configured to control the luminaire according to the driving parameter.
The luminaire control device according to claim 20, wherein the luminaire control device is a driving device of the luminaire, wherein:

The first acquiring total module includes: a first acquiring unit, configured to acquire color coordinates of each of the plurality of monochrome channels, wherein the luminaire includes the plurality of monochrome channels, and the luminaire The emitted light is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels;

The second acquiring unit includes: a second acquiring unit, configured to acquire a target illuminance of each channel according to a target color coordinate of the emitted light and a color coordinate of each channel; and a third acquiring unit, Obtaining driving parameters of each channel corresponding to the target illuminance of each channel;

The control master module includes a first driving unit for driving each of the channels using the acquired driving parameters of each of the channels.
The luminaire control device according to claim 21, wherein the third obtaining unit comprises:

a fitting module, configured to perform a fitting process on the plurality of driving parameter sample values and the plurality of illuminance sample values corresponding to each channel that are acquired in advance, wherein the plurality of driving parameter sample values are different from the plurality of One illuminance sample value corresponds to one;

a first acquiring module, configured to acquire, according to a result of the fitting process, a correspondence between a driving parameter corresponding to each channel and a target illuminance;

And a second acquiring module, configured to acquire, according to the correspondence, driving parameters of each channel corresponding to the target illuminance of each channel.
The luminaire control device according to claim 22, wherein the luminaire control device further comprises:

a selecting unit, configured to select the plurality of driving parameter sample values corresponding to each of the channels;

a second driving unit, configured to drive each channel by using each of the plurality of driving parameter sampling values;

a fourth acquiring unit, configured to acquire, when each of the channels is driven by using each of the driving parameter sampling values, a current illuminance of each channel as an illuminance sampling corresponding to the sampling value of each driving parameter value.
The luminaire control device according to claim 23, wherein the first obtaining unit comprises:

a third acquiring module, configured to acquire a current color coordinate of each channel when each of the channels is driven by using each of the driving parameter sampling values;

And a first processing module, configured to use, as the color coordinates of each of the channels, an average of the plurality of current color coordinates acquired under the plurality of driving parameter sample values.
The luminaire control apparatus according to claim 22, wherein

The fitting module includes: a first fitting sub-module, configured to linearly fit the plurality of driving parameter sample values and the plurality of illuminance sample values;

The first obtaining module includes: a first processing submodule, configured to obtain the correspondence according to a result of the linear fitting: E=p*c+E 0 , where E represents a target of each channel Illuminance, c represents the driving parameter of each channel, and p and E 0 are constant coefficients;

The second obtaining module includes: a second processing submodule, configured to acquire driving parameters of each channel according to the following calculation formula: c=(EE 0 )/p.
The luminaire control apparatus according to claim 22, wherein

The fitting module includes: a second fitting sub-module, configured to perform fitting processing on the plurality of driving parameter sample values and the plurality of illuminance sampling values by using an interpolation method;

The first obtaining unit includes: a third processing submodule, configured to obtain the correspondence according to a result of the fitting process: E=(E 2 -E 1 )*(cc 1 )/(c 2 -c 1 ) + E 1 , where E represents the target illuminance of each channel, c represents the drive parameter of each channel, c 1 represents one of the plurality of drive parameter sample values and c 1 <c, c 2 represents one of the plurality of driving parameter sample values and c 2 >c, E 1 represents one of the plurality of illuminance sample values corresponding to c 1 , and E 2 represents the plurality of illuminance sample values a corresponding one of c 2 ;

The second obtaining module includes: a fourth processing submodule, configured to acquire driving parameters of each channel according to the following calculation formula: c=(c 2 -c 1 )*(EE 1 )/(E 2 -E 1 ) + c 1 .
The luminaire control apparatus according to any one of claims 21 to 26, wherein the second acquisition unit comprises:

a generating module, configured to generate, in a preset color coordinate space, a color mixing region with a color coordinate of each channel as a vertex;

a fourth acquiring module, configured to acquire, according to a relative positional relationship between the target color coordinates and a color coordinate of each channel, when the target color coordinate is located in the color mixing region, Illumination ratio

And a second processing module, configured to use, as the target illuminance of each channel, a product of a sum of illuminances of the emitted light and an illuminance ratio of each channel.
A luminaire control apparatus according to any one of claims 21 to 26, wherein

The second obtaining unit includes: a selecting module, configured to select a plurality of the target color coordinates; and a fifth acquiring module, configured to: according to each of the plurality of target color coordinates and color coordinates of each of the channels Obtaining target illuminance of each of the channels corresponding to each of the ones;

The third obtaining unit includes: a third processing module, configured to acquire driving parameters of each channel as driving parameters corresponding to each channel and each of the ones under each of the The obtained driving parameters corresponding to the records are recorded in the data table;

The first driving unit includes: a determining module, configured to determine a target color coordinate that the outgoing light currently needs to reach; a searching module, configured to search, in the data table, the each channel and the required The driving parameters corresponding to the target color coordinates; the driving module is configured to drive each channel by using the found driving parameters.
The luminaire control device according to claim 20, wherein the luminaire control device is a statistical device of light color parameters, wherein:

The first acquiring total module includes: an acquiring module, configured to respectively acquire color coordinates of respective monochrome channels of each of the plurality of lamps, and mean values and covariances of color coordinates of the respective monochrome channels of the plurality of lamps; ;

The second acquiring total module includes: a determining module, configured to determine, according to an average value and a covariance of color coordinates of each of the monochrome channels of the plurality of lamps, each of the one or more lamps corresponding to the calibration process Whether the monochrome channel meets the preset conditions;

The control module includes: a processing module, configured to determine a common color gamut range of the plurality of lamps according to color coordinates of respective monochrome channels of each of the plurality of lamps that meet the preset condition.
The luminaire control device according to claim 29, wherein the processing module comprises:

a determining unit, configured to determine a gamut polygon of each of the luminaires according to color coordinates of each of the monochrome channels of each of the luminaires;

The obtaining unit is configured to obtain, according to the value of n, the intersection of the common color gamut polygon of the n lamps and the color gamut polygon of the n+1th light fixture as the common color gamut of the n+1 lamps until the acquisition The common color gamut range, where n is a positive integer greater than or equal to 1, and when n is equal to 1, the common color gamut polygon of one luminaire is taken as the gamut polygon of the first luminaire.
The luminaire control device according to claim 29, wherein the determining module comprises:

a setting unit for acquiring color coordinates of the i-th monochrome channel of the jth luminaire and setting

A calculation unit for calculating statistics according to the following formula:

among them,
Indicates the mean of the color coordinates of the i-th monochrome channel of the N lamps that have been counted,
a covariance representing the color coordinates of the i-th monochrome channel of the N lamps,
Express
Inverse matrix

Comparison unit for
Compare with the preset threshold T, if
If it is greater than T, it means
The corresponding luminaire does not meet the preset condition, where T is a threshold obtained according to a preset confidence.
The luminaire control device according to claim 20, wherein the luminaire control device is a luminaire adjusting device, and the luminaire comprises at least three optical channels, wherein:

The first acquiring total module includes: a first acquiring unit, configured to acquire a first preset correspondence between a total luminous flux of the luminaire and a driving parameter, wherein the total luminous flux is a luminous flux of the at least three optical channels a second acquisition unit, configured to acquire a second preset correspondence between the target color of the luminaire and the driving parameter, wherein the driving parameter is used to adjust the luminaire to be the target color; An acquiring unit, configured to acquire a maximum luminous flux of each optical channel in the luminaire; and a fourth acquiring unit, configured to acquire a range of the driving parameter;

The second acquisition total module includes: a solution unit, configured to use, according to the first preset correspondence, the second preset correspondence, a maximum luminous flux of each optical channel, and a range of the driving parameter, Obtaining drive parameter values that cause the total luminous flux to reach a predetermined condition;

The control total module includes: an adjustment unit, configured to adjust the luminaire by using the driving parameter value.
The luminaire control device according to claim 32, wherein the first preset correspondence satisfies the total luminous flux of the luminaire reaches a maximum value, and the solving unit comprises:

a first solving module, configured to: when the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence, the second preset correspondence, and the driving parameter Range, when the first driving parameter value is obtained to drive the luminaire to reach the target color, the total luminous flux reaches the maximum value, wherein the optical channel i is any one of the at least three optical channels.
The luminaire control apparatus according to claim 33, wherein the solving unit comprises:

a first acquiring module, configured to acquire a maximum power consumption of the luminaire;

a second obtaining module, configured to obtain actual power consumption of the luminaire, wherein the actual power consumption is a sum of power consumption of each optical channel when the luminaire reaches the target color;

a second solution module, configured to: when the actual power consumption of the light fixture is less than or equal to the maximum power consumption, and the actual light flux of the optical channel i is less than or equal to the maximum light flux of the optical channel i, according to the first preset The relationship between the relationship, the second preset correspondence, and the range of the driving parameter to obtain the second driving parameter value to drive the luminaire to reach the target color does not exceed the maximum power consumption of the luminaire, and the luminaire The total luminous flux reaches the maximum.
The luminaire control apparatus according to claim 32, wherein the solving unit comprises:

a third acquiring module, configured to acquire a minimum target luminous flux of the luminaire;

a fourth acquiring module, configured to acquire a third preset correspondence between the actual power consumption of the luminaire and the driving parameter, where the actual power consumption is the work of each optical channel when the luminaire reaches the target color And the third preset correspondence relationship satisfies the minimum power of the actual power consumption when the luminaire is the target color;

a third solving module, configured to: when the total luminous flux is greater than or equal to the minimum target luminous flux, and the actual luminous flux of the optical channel i is less than or equal to the maximum luminous flux of the optical channel i, according to the first preset correspondence relationship, Deriving the second preset correspondence, the third preset correspondence, and the range of the driving parameter to obtain a third driving parameter value, wherein the luminaire is driven by the third driving parameter value, so that the luminaire is The actual power consumption of the target color is the minimum value and the total luminous flux is greater than or equal to the minimum target luminous flux.
The luminaire control device according to any one of claims 32 to 35, wherein the luminaire control device further comprises:

a fifth acquiring unit, configured to acquire an optical radiant flux of any one of the at least three optical channels;

a sixth acquiring unit, configured to acquire a fourth preset correspondence relationship between the optical radiant flux and the driving parameter, where the fourth preset correspondence relationship is used to limit the optical radiant flux to be in a predetermined range,

According to the first preset correspondence, the second preset correspondence, the fourth preset correspondence, the maximum luminous flux of each optical channel, and the range of the driving parameter, the fourth is obtained. Driving parameter values, wherein the luminaire is driven with the fourth drive parameter value such that the radiant flux of the luminaire is within the predetermined range.
The luminaire control device according to claim 20, wherein the luminaire control device is a configurating device for luminaire driving parameters, configured to configure driving parameters for the luminaire, the luminaire having a plurality of monochrome channels, and The emitted light of the luminaire is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels, wherein:

The control total module includes: a control unit configured to acquire target color coordinates of the outgoing light and color coordinates of each of the plurality of monochrome channels, and based on the target color coordinates and the each The color coordinates of the monochrome channels determine the target illuminance of each of the monochrome channels, and determine the target driving parameters of each of the monochrome channels based on the target illuminance of each of the monochrome channels, and each of the The target drive parameters of the monochrome channel are assigned to the luminaire.
The luminaire control apparatus according to claim 37, wherein said control means comprises:

a first communication module, configured to acquire a plurality of driving parameter sample values and a plurality of illuminance sample values corresponding to each of the monochrome channels, wherein the plurality of driving parameter sample values and the plurality of illuminance sample values One-to-one correspondence;

a processor, configured to perform fitting processing on the plurality of driving parameter sample values corresponding to each of the monochrome channels and the plurality of illuminance sample values, to obtain a fitting result, and based on the fitting result Determining a mapping relationship between driving parameters and illuminance corresponding to each of the monochrome channels, and determining a target driving parameter corresponding to the target illuminance of each of the monochrome channels based on the mapping relationship;

And a second communication module, configured to configure the target driving parameter of each of the monochrome channels to the luminaire.
The luminaire control device according to claim 38, wherein the luminaire control device further comprises:

a light shielding member, the light shielding space inside the light shielding member is configured to set the light fixture, and the light fixture is configured to receive the plurality of driving parameter sampling values corresponding to each of the monochrome channels, the plurality of driving parameters Each drive parameter sample value in the sampled value is used to drive each of the monochrome channels;

a measuring component disposed in the opaque space and coupled to the control component for measuring each of the monochrome channels when each of the drive parameter sample values drives the each of the monochrome channels a current illuminance value, and the current illuminance value is taken as an illuminance sample value corresponding to each of the drive parameter sample values,

The first communication module is further configured to acquire the illuminance sample value corresponding to the sampling value of each of the driving parameters of each of the monochrome channels measured by the measuring component.
A luminaire control apparatus according to claim 39, wherein

The first communication module is further configured to acquire, when the each driving parameter sample value drives the each monochrome channel, the number of each of the monochrome channels under the plurality of driving parameter sampling values Current color coordinates;

The processor is further configured to average the plurality of current color coordinates, obtain an average of the plurality of current color coordinates, and use the average value as color coordinates of each of the monochrome channels.
The luminaire control apparatus according to claim 38, wherein the fitting result is a result obtained by a linear fitting method or a result obtained by an interpolation method.
The luminaire control apparatus according to claim 37, wherein said control means determines the target illuminance of said each monochrome channel based on said target color coordinates and color coordinates of said each monochrome channel in the following manner :

Generating a color mixing region in which a color coordinate of each of the monochrome channels is a vertex in a preset color coordinate space;

Determining whether the target color coordinate is within the color mixing region;

If it is determined that the target color coordinate is within the color mixing region, determining an illuminance ratio of each of the monochrome channels based on a positional relationship of the target color coordinates and color coordinates of each of the monochrome channels;

Calculating a product of a total illuminance of the emitted light and the illuminance ratio;

The product is taken as the target illuminance of each of the monochrome channels.
The luminaire control apparatus according to claim 37, wherein said target color coordinates comprise a plurality of

The control component is further configured to acquire each of the plurality of target color coordinates, and determine each of the targets based on the each target color coordinate and color coordinates of each of the monochrome channels a target illuminance of each of the monochrome channels corresponding to the color coordinates, and determining the target illuminance with the target illuminance of the each of the monochrome channels corresponding to each of the target color coordinates Corresponding target driving parameters of each of the monochrome channels, and storing the target driving parameters of each of the monochrome channels corresponding to each of the target color coordinates into a data table, and The target driving parameters of each of the monochrome channels corresponding to each of the target color coordinates are configured to the luminaire in the form of a data table.
The luminaire control apparatus according to claim 37, wherein said control unit is a cloud server.
The luminaire control device according to claim 39, wherein the luminaire control device further comprises:

a detecting component disposed in the light shielding space for detecting an ambient temperature in the light shielding space;

An adjusting component for adjusting the ambient temperature in the light-shielding space,

Wherein the control component is connected between the detecting component and the adjusting component for acquiring the detected ambient temperature, and controlling the operating state of the adjusting component according to the detected ambient temperature.
A luminaire control apparatus according to claim 45, wherein

The detecting component includes: a thermocouple for being disposed on a first side of the light source panel of the luminaire, and collecting a temperature of the luminaire, wherein the first side is provided with an LED chip,

The regulating component includes: a refrigerating or heating device for being disposed on the second side of the light source panel, and performing a cooling process or a heat treatment on the luminaire,

Wherein the control component is coupled between the thermocouple and the refrigerating or heating device for acquiring the collected temperature and controlling the refrigerating or heating device according to the collected temperature The lamps are cooled or heat treated.
A luminaire control system, wherein the luminaire control system is a luminaire driving parameter configuration system, configured to configure corresponding driving parameters for a plurality of luminaires, each of the plurality of luminaires having a plurality of monochrome Channels, and the emitted light of each of the luminaires is a superposition of monochromatic light emitted by each of the plurality of monochromatic channels, including:

The light shielding member of the lamp control device according to claim 39 or 40, wherein the light shielding member comprises a plurality of, and the light shielding member is in one-to-one correspondence with the lamp;

A measuring member in the lamp control device according to claim 39 or 40, wherein said measuring member comprises a plurality of said measuring members in one-to-one correspondence with said light blocking member;

A control unit in the luminaire control apparatus according to any one of claims 37 to 46, wherein the control unit is configured to configure respective driving parameters for each of the plurality of luminaires.