CN106061014B - Linear colour temperature database construction method, color temperature adjusting method and device, LED lamp - Google Patents
Linear colour temperature database construction method, color temperature adjusting method and device, LED lamp Download PDFInfo
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- CN106061014B CN106061014B CN201610408322.9A CN201610408322A CN106061014B CN 106061014 B CN106061014 B CN 106061014B CN 201610408322 A CN201610408322 A CN 201610408322A CN 106061014 B CN106061014 B CN 106061014B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses linear colour temperature database construction method, color temperature adjusting method and device, LED lamp, color temperature adjusting method is：The DMX control signals from DMX consoles are received, the DMX control signals have colour temperature passage DM values；The brightness DM values according to corresponding to obtaining colour temperature passage DM values and linear colour temperature database, are adjusted according to brightness of the brightness DM values to LED lamp bead.The present invention can only need regulation colour temperature passage DM values conveniently to choose required colour temperature when needing to change the colour temperature of scene, meet the requirement of light in scene to a greater extent by building linear colour temperature database.
Description
Technical field
The present invention relates to field of LED illumination, more particularly to linear colour temperature database construction method, color temperature adjusting method and dress
Put, LED lamp.
Background technology
LED lamp is that have many advantages, such as energy-efficient, green and service life is long, is widely used in waving
Platform, video display illumination.Although LED is played very well in many aspect performances, colour temperature is single when most LED lamp is dispatched from the factory, and CRI
(the entitled colour rendering index of Chinese, represent colour rendering, represent color degree true to nature) and TLCI indexes (Televison
LightingCinsistency Index, represent TV light source index of conformity) etc. optical parametric it is relatively low, during camera photography
It is difficult to take out high definition, real television image, high place is required for the shooting place fluorescent tube such as TV station, theater, film studio,
It is difficult to meet requirement, the general inventive of LED lamp is all constrained.
The content of the invention
For overcome the deficiencies in the prior art, an object of the present invention is to provide linear colour temperature database sharing side
Method, it can provide a kind of convenience linear database that the brightness to the LED lamp bead of a variety of different colours is adjusted.
The second object of the present invention is to provide color temperature adjusting method, and it can realize a variety of different face of the regulation of fast accurate
The brightness of the LED lamp bead of color.
The third object of the present invention is to provide colour temperature adjusting means, and it can realize the second object of the present invention.
The fourth object of the present invention is to provide LED lamp, and it can be according to carrying out accurate colour temperature regulation.
An object of the present invention is realized using following technical scheme：
Linear colour temperature database construction method, comprises the following steps：
A1：Repeatedly adjust respectively in several colour temperature sampled points in the range of preset color temperature under each colour temperature sampled point
The brightness of the LED lamp bead of corresponding not same color；
A2：The actual measurement color temperature value and each face of LED lamp after detection is adjusted each time under each colour temperature sampled point
For the actual measurement brightness DM values of the LED lamp bead of color to form multigroup two-dimensional array, each group of two-dimensional array includes the actual measurement color of LED lamp
The actual measurement brightness DM values of the LED lamp bead of temperature value and each color；The LED lamp includes the LED of multiple not same colors
Pearl；
A3：The actual measurement color temperature value of LED lamp is chosen closest to one group of two dimension of the color temperature value of its corresponding colour temperature sampled point
Array, and the colour temperature passage DM values under each colour temperature sampled point are set according to the two-dimensional array and obtain each color
The brightness DM values of LED lamp bead, linear colour temperature database is obtained according to the corresponding relation of the brightness DM values and colour temperature passage DM values,
Linear colour temperature database is used to the colour temperature of LED lamp be adjusted；The brightness DM values of the LED lamp bead and the reality of LED lamp bead
It is identical to survey brightness DM values.
Preferably, the preset color temperature scope is 2500k to 9500k.
Preferably, the colour temperature sampled point is respectively：2500k、2800k、3000k、3200k、3500k、4000k、
4500k、5000k、5500k、6000k、6500k、7000k、7500k、8000k、8500k、9000k、9500k。
Preferably, in step A3, the colour temperature model between the adjacent colour temperature sampled point of any two is obtained always according to interpolation method
The brightness DM values of the LED lamp bead of colour temperature passage DM values and each color in enclosing.
Preferably, the span of the colour temperature passage DM values is 0 to 255.
The second object of the present invention is realized using following technical scheme：
Color temperature adjusting method, comprise the following steps：
S1：The DMX control signals from DMX consoles are received, the DMX control signals have colour temperature passage DM values；
S2：The brightness DM values according to corresponding to obtaining colour temperature passage DM values and linear colour temperature database, according to brightness DM values
Brightness to LED lamp bead is adjusted；
Wherein, linear colour temperature database is obtained by linear colour temperature database construction method.
Preferably, the span of the colour temperature passage DM values is 0 to 255.
The third object of the present invention is realized using following technical scheme：
Colour temperature adjusting means, including following module：
Receiving module：For receiving the DMX control signals from DMX consoles, there is the DMX control signals colour temperature to lead to
Road DM values；
Adjustment module：For brightness DM values corresponding to being obtained according to colour temperature passage DM values and linear colour temperature database, root
It is adjusted according to brightness of the brightness DM values to LED lamp bead；
Wherein, linear colour temperature database is obtained by linear colour temperature database construction method.
The fourth object of the present invention is realized using following technical scheme：
LED lamp, including CPU, drive module, light emitting module, memory module and power supply, the drive module, storage mould
Block and power supply are connected with CPU, and light emitting module is connected with drive module, and DMX consoles of the CPU also with outside is connected, and stores mould
Block is used to store linear colour temperature database, and DMX consoles are used to send the DMX control signals with colour temperature passage DM values to CPU,
So that linear colour temperature databases of the CPU in memory module exports corresponding drive signal to drive module；Drive module is used
In the brightness that light emitting module is adjusted according to drive signal, the drive signal has corresponding brightness DM values；Wherein, linear colour temperature
Database is obtained by linear colour temperature database construction method.
Compared with prior art, the beneficial effects of the present invention are：
The present invention can only need to adjust colour temperature by building linear colour temperature database when needing to change the colour temperature of scene
Passage DM values can conveniently choose required colour temperature, meet the requirement of light in scene to a greater extent.
Brief description of the drawings
Fig. 1 is the flow chart of the linear colour temperature database construction method of the present invention；
Fig. 2 is the brightness DM value changes curve maps of the LED lamp bead under the different-colour sampled point of the present invention；
Fig. 3 is the flow chart of the color temperature adjusting method of the present invention；
Fig. 4 is the function structure chart of the LED lamp of the present invention.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
Referring to Fig. 1, the present invention provides a kind of linear colour temperature database construction method, and its LED lamp applied exists respectively
There is the LED lamp bead of some multiple colors on same aluminium base, it is respectively red, orange, grass green, green, blue, purple etc. six kinds in of the invention
Color, the LED lamp bead packet of each color are cascaded, and the LED lamp bead of each color possesses a DMX control in light fixture
Passage processed.In the present invention, the brightness regulation scope for setting the LED lamp bead of each color is 0-255 brightness DM value, described here
Brightness DM values be the equal of a numerical value being adjusted in console by brightness of the button to LED lamp bead, as brightness DM
Be worth for 0 when, the brightness of LED lamp bead is 0%, and when brightness DM values are 255, the brightness of LED lamp bead is 100%.Pass through console
Brilliance control can be carried out to the LED lamp bead of different colours, the LED lamp bead of above-mentioned six kinds of different colours is blended in one by different proportion
When rising, exported by optical system, the white light of different-colour can be mixed into.Explanation is needed exist for, although different colours
The brightness of LED lamp bead changes, but overall illumination is substantially what will not be changed, change be the white light being mixed into colour temperature.
Linear colour temperature database construction method comprises the following steps：
A1：Repeatedly adjust respectively in several colour temperature sampled points in the range of preset color temperature under each colour temperature sampled point
The brightness of the LED lamp bead of corresponding not same color；
Above-mentioned preset color temperature scope is 2500k to 9500k, and the sampling of several colour temperatures is chosen in the range of this preset color temperature
Point, the corresponding color temperature value of a colour temperature sampled point, the selection of colour temperature sampled point should be enough, and these colour temperatures sample
Interval between point is sufficiently small, to ensure the accurate of data.It can be obtained not by the brightness for adjusting not same color LED lamp bead
Same colour temperature.
A2：The actual measurement color temperature value and each face of LED lamp after detection is adjusted each time under each colour temperature sampled point
For the actual measurement brightness DM values of the LED lamp bead of color to form multigroup two-dimensional array, each group of two-dimensional array includes the actual measurement color of LED lamp
The actual measurement brightness DM values of the LED lamp bead of temperature value and each color；The LED lamp includes the LED lamp bead of not same color；
The colour temperature that can be mixed at different brightnesses by optics output to the LED lamp bead of each color by spectrometer is entered
The actual measurement of row obtains the actual measurement color temperature value of the LED lamp under the colour temperature sampled point, due to the LED under each colour temperature sampled point
Lamp bead brightness is repeatedly adjusted, that is, the brightness regulation of the LED lamp bead of each color under each colour temperature sampled point
Data corresponding need, to carrying out colour temperature detection under this each group of brightness, to detect all obtain one group two each time to be multigroup
Dimension group, one group of color temperature value corresponding to selection actual measurement color temperature value closest to colour temperature sampled point.It can also be detected by spectrometer
To illumination, CRI indexes and TLCI indexes, in selected optimal two Dimension Numerical Value, its corresponding illumination, CRI indexes and TLCI
Index also highest so that LED lamp light output can also meet high CRI indexes and TLCI indexes output while brightness is ensured.
For example, colour temperature sampled point is 2500k, the red brightness DM values of regulation LED lamp bead are 243, orange brightness DM values
For 245, grass green brightness DM values are 242, and green brightness DM values are 92, and blue brightness DM values are 99, the brightness DM of purple
It is worth for 65, the actual measurement color temperature value detected under this brightness combination is 2508k；The red brightness of regulation LED lamp bead again in addition
DM values are that 245, orange brightness DM values are 245, and grass green brightness DM values are 244, and green brightness DM values are 94, and blue is bright
It is 100 to spend DM values, and the brightness DM values of purple are 66, and the actual measurement color temperature value detected under this brightness combination is 2504k, it is clear that
2504 are more nearly 2500 compared with 2508, thus select this two-dimensional array corresponding to 2504k, and this two-dimensional array includes
Survey brightness DM values corresponding to color temperature value 2504k and a variety of colors difference.
A3：The actual measurement color temperature value of LED lamp is chosen closest to one group of two dimension of the color temperature value of its corresponding colour temperature sampled point
Array, and the colour temperature passage DM values under each colour temperature sampled point are set according to the two-dimensional array and obtain each color
The brightness DM values of LED lamp bead, linear colour temperature database is obtained according to the corresponding relation of the brightness DM values and colour temperature passage DM values,
Linear colour temperature database is used to the colour temperature of LED lamp be adjusted；The brightness DM values of the LED lamp bead and the reality of LED lamp bead
It is identical to survey brightness DM values.
Here memory module of the linear colour temperature database purchase obtained in LED lamp.Colour temperature sampled point is respectively
2500k、2800k、3000k、3200k、3500k、4000k、4500k、5000k、5500k、6000k、6500k、7000k、
7500k、8000k、8500k、9000k、9500k。
Preferably, colour temperature passage DM values are 0 to 255, but colour temperature passage DM values are set no color temperature are adjusted when being 0-3,
And colour temperature passage DM values are when being 4-255, colour temperature respective change in the range of 2500k values 9500k.
Table 1 below indicates the actual measurement color temperature value of the LED lamp bead of each color under different colour temperature sampled points, reality
Survey brightness DM values, illumination, CRI indexes and TLCI indexes：
Table 1：
In step A3, it can also be obtained by interpolation method in the reference color temperature between the adjacent colour temperature sampled point of any two
Colour temperature passage DM values and each color LED lamp bead brightness DM values.As shown in Fig. 2 under different colour temperature sampled points,
The change curve of the brightness DM values of the LED lamp bead of different colours changes into regularity, using interpolation method more easily by regularity
Gather sampling point.The coordinate points of transverse axis represent numbering of the different-colour sampled point in table 1 in the Fig. 3.
Actually required colour temperature may be between two be surveyed color temperature value, due to not having between the scope of two colour temperature sampled points
Have carry out survey color temperature value acquisition, lack actual measurement color temperature value between difference, using interpolation method can be calculated these without
The colour temperature passage DM values of the LED lamp of other color temperature points of the actually detected preset color temperature scope in addition to colour temperature sampled point and
The brightness DM values of the LED lamp bead of each color, by the brightness DM values of these color temperature points obtained here and colour temperature passage DM values
It is supplemented in linear colour temperature database.
Table 2 shows the linear colour temperature database of the color conversion in 2500k to 9500k reference color temperature, in table 2
Demand color temperature value is actually corresponding with colour temperature sampled point in table 1.
Table 2：
The present invention by testing out different-colour sampled point in the case of different colours LED lamp bead brightness DM values, according to
Practical application is, it is necessary to test colour temperature change and the brightness DM values of LED modules with different colors lamp bead, composition one two from 2500k to 9500k
The database of dimension group, is stored in LED lamp.In use, only need to adjust colour temperature passage DM values, then basis by console
Linear colour temperature database then can control the luminosity of the LED lamp bead of different colours.
The present invention also provides color temperature adjusting method, referring to Fig. 3, comprises the following steps：
S1：The DMX control signals from DMX consoles are received, the DMX control signals have colour temperature passage DM values；Color
Color temperature value is inputted warm passage DM values by DMX consoles according to demand, and demand color temperature value is entered by actual scene to the demand of colour temperature
Row is set.
S2：The brightness DM values according to corresponding to obtaining colour temperature passage DM values and linear colour temperature database, according to brightness DM values
Brightness to LED lamp bead is adjusted.
According to colour temperature passage DM values, with reference to linear colour temperature database, can obtain under the demand color temperature value corresponding to not
With the brightness DM values of the LED lamp bead of color, thus the brightness DM values of the LED lamp bead of different colours can be adjusted, so as to change LED
The brightness of lamp bead.The brightness DM values of LED lamp bead are also equal to the brightness of LED.
The span of above-mentioned colour temperature passage DM values is similarly 0 to 255.
A kind of colour temperature adjusting means corresponding with color temperature adjusting method is also provided, it includes following module：
Receiving module：For receiving the DMX control signals from DMX consoles, there is the DMX control signals colour temperature to lead to
Road DM values；
Adjustment module：For brightness DM values corresponding to being obtained according to colour temperature passage DM values and linear colour temperature database, root
It is adjusted according to brightness of the brightness DM values to LED lamp bead.
Referring to Fig. 4, the present invention also provides a kind of LED lamp, and it includes CPU, drive module, light emitting module, memory module
And power supply, light emitting module are the LED lamp bead of multiple color, drive module, memory module and power supply are connected with CPU, and light mould
Block is connected with drive module, and DMX consoles of the CPU also with outside is connected, and memory module is used to store linear colour temperature database,
DMX consoles are used to send the DMX control signals with colour temperature passage DM values to CPU, so that lines of the CPU in memory module
Property colour temperature database export corresponding drive signal to drive module.Concrete principle is that CPU is right according to linear colour temperature database
It should arrive under the needs color temperature value, the brightness DM values corresponding to the LED lamp bead of different colours, and according to the LED lamp bead of different colours
Brightness DM values export corresponding drive signal to drive module, make the brightness of LED lamp bead corresponding to drive module driving regulation,
Drive signal has corresponding brightness DM values, so that the color temperature value for the white light that LED lamp is sent and demand color temperature value one
Cause.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (9)
1. linear colour temperature database construction method, it is characterised in that comprise the following steps：
A1：Repeatedly institute is right under each colour temperature sampled point in several colour temperature sampled points in the range of preset color temperature for regulation respectively
The brightness of the LED lamp bead for the not same color answered；
A2：The actual measurement color temperature value of LED lamp after detection is adjusted each time under each colour temperature sampled point and each color
For the actual measurement brightness DM values of LED lamp bead to form multigroup two-dimensional array, each group of two-dimensional array includes the actual measurement color temperature value of LED lamp
With the actual measurement brightness DM values of the LED lamp bead of each color；The LED lamp includes the LED lamp bead of multiple not same colors；
A3：Choose LED lamp actual measurement color temperature value closest to the color temperature value of its corresponding colour temperature sampled point one group of two-dimensional array,
And the colour temperature passage DM values under each colour temperature sampled point are set according to the two-dimensional array and obtain the LED of each color
The brightness DM values of pearl, linear colour temperature database is obtained according to the corresponding relation of the brightness DM values and colour temperature passage DM values, linearly
Colour temperature database is used to the colour temperature of LED lamp be adjusted；The actual measurement of the brightness DM values and LED lamp bead of the LED lamp bead is bright
It is identical to spend DM values.
2. colour temperature database construction method as claimed in claim 1 linear, it is characterised in that the preset color temperature scope is
2500k to 9500k.
3. linear colour temperature database construction method as claimed in claim 2, it is characterised in that the colour temperature sampled point difference
For：2500k、2800k、3000k、3200k、3500k、4000k、4500k、5000k、5500k、6000k、6500k、7000k、
7500k、8000k、8500k、9000k、9500k。
4. linear colour temperature database construction method as claimed in claim 3, it is characterised in that in step A3, always according to interpolation
Method obtains the LED of the colour temperature passage DM values and each color in the reference color temperature between the adjacent colour temperature sampled point of any two
The brightness DM values of lamp bead.
5. linear colour temperature database construction method as claimed in claim 1, it is characterised in that the colour temperature passage DM values take
It is 0 to 255 to be worth scope.
6. color temperature adjusting method, it is characterised in that comprise the following steps：
S1：The DMX control signals from DMX consoles are received, the DMX control signals have colour temperature passage DM values；
S2：The brightness DM values according to corresponding to obtaining colour temperature passage DM values and linear colour temperature database, according to brightness DM values to LED
The brightness of lamp bead is adjusted；
Wherein, linear colour temperature database is obtained as the linear colour temperature database construction method described in any one of claim 1 to 5.
7. color temperature adjusting method as claimed in claim 6, it is characterised in that the span of the colour temperature passage DM values is 0
To 255.
8. colour temperature adjusting means, it is characterised in that including following module：
Receiving module：For receiving the DMX control signals from DMX consoles, the DMX control signals have colour temperature passage DM
Value；
Adjustment module：For brightness DM values corresponding to being obtained according to colour temperature passage DM values and linear colour temperature database, according to bright
Brightness of the DM values to LED lamp bead is spent to be adjusted；
Wherein, linear colour temperature database is obtained as the linear colour temperature database construction method described in any one of claim 1 to 5.
9.LED light fixtures, it is characterised in that including CPU, drive module, light emitting module, memory module and power supply, the driving mould
Block, memory module and power supply are connected with CPU, and light emitting module is connected with drive module, and CPU also connects with the DMX consoles of outside
Connect, memory module is used to store linear colour temperature database, and DMX consoles are used to send the DMX with colour temperature passage DM values to CPU
Control signal, so that linear colour temperature databases of the CPU in memory module exports corresponding drive signal to drive module；Drive
Dynamic model block is used for the brightness that light emitting module is adjusted according to drive signal, and the drive signal has corresponding brightness DM values；Wherein,
Linear colour temperature database is obtained as the linear colour temperature database construction method described in any one of claim 1 to 5.
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| CN109856894A (en) * | 2019-04-03 | 2019-06-07 | 深圳市莱宝影视科技有限公司 | The aobvious LED movies-making lamp of height and its color temperature adjusting method |
| CN112423421B (en) * | 2019-08-19 | 2023-08-15 | 兴讯科技股份有限公司 | Time-controlled LED lighting system capable of being adjusted according to pearlescent electric parameters of lamp |
| CN111800923B (en) * | 2020-06-05 | 2023-05-12 | 深圳市晟瑞科技有限公司 | Light control method and device, readable storage medium and terminal equipment |
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