CN106658852A - Calculation method used for constant luminance of LED lamp - Google Patents
Calculation method used for constant luminance of LED lamp Download PDFInfo
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- CN106658852A CN106658852A CN201611229617.6A CN201611229617A CN106658852A CN 106658852 A CN106658852 A CN 106658852A CN 201611229617 A CN201611229617 A CN 201611229617A CN 106658852 A CN106658852 A CN 106658852A
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- colour
- value
- rate
- aver
- light modulation
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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]
Abstract
The invention discloses a calculation method used for constant luminance of an LED lamp. The method comprises the steps of calculating a weighted value; inputting a light-dimming input value; finding out a minimum value; calculating an average value; calculating an adjustment value of a demanded color; calculating a weighted ratio value; and calculating a light-dimming output value. According to the method, the light-dimming output value is subdivided and adjusted according to a light mixing parameter value, as a standard, of maximum luminance Lum_Max; the color temperature, luminance, light mixing and power of the lamp are controlled by controlling the output light-dimming value; an optimal light mixing value is set; and original power exceeding the color temperature and the luminance is saved.
Description
Technical field
The present invention relates to the light-dimming method of LED lamp, in particular for the meter of the constant illumination of multiple color colour mixture control
Calculation method.
Background technology
LED has the characteristic of energy-conserving and environment-protective, is widely used as lighting source.The light-dimming method of LED light fixtures
LED can be caused according to the particular demands of different time, different scenes and user, there is provided the illuminance specified and color
Temperature.It is assumed that a kind of LED lamp is provided with the lamp bead of four kinds of colors, four colors are respectively RED, GREEN, BLUE, WHITE, it is stipulated that require
When lighting less than four kinds of colors simultaneously, the light modulation numerical value of input is exactly the light modulation numerical value of output, when simultaneously four kinds of colors are lighted
When, when the illumination of four blended-lights is less than maximum illumination Lum_Max that light fixture is limited, the light modulation numerical value of input is also the tune of output
Light numerical value, corresponding illumination also can not be limited.And when the illumination of four blended-lights is more than Lum_Max, the light modulation numerical value of output
The light modulation numerical value being input into is not equal to, the light modulation numerical value of output will be adjusted output according to maximal illumination Lum_Max, it is ensured that
The output illumination maximum of light fixture is without departing from maximal illumination Lum_Max.In prior art, the light modulation numerical value to exporting is not carried out
Subdivision and adjustment and optimum setting, so as to cause unnecessary energy consumption to waste.
The content of the invention
To reduce the power consumption of LED lamp, the technical problem to be solved is by the mixed light of the number of colors for limiting
In the range of be switched to subdivision light-dimming method outside the mixed light scope of specified number of colors.
To solve above-mentioned technical problem, a kind of computational methods for LED lamp perseverance illumination provided by the present invention are described
LED lamp includes lamp bead Colour (1) of N kind colors to Colour (n), wherein N >=2, the light modulation input value of N kind color lamp beads
For In_Colour (x), wherein 1≤x≤N；The maximum of light modulation input value is Imax；Light modulation output valve is Out_Colour (x)
, wherein 1≤x≤N；The corresponding light modulation input value of the specified illumination of LED lamp is M_Colour (x), wherein 1≤x≤N；N number of lamp
In pearl input value In_Colour (x) it is minimum for Min；The mean value of light modulation input value In_Colour (x) of N number of lamp bead is
Aver；The adjusted value of demand color is Range (0≤Range≤Imax)；Weighted value is Rate_min and Rate_Aver, wherein
Rate_min+Rate_Aver=1, weighted value ratio value is Rate_sum；
The computational methods comprise the steps：
(1) light modulation input value M_Colour (1) according to corresponding to the specified illumination of LED lamp, M_Colour (2) ... M_
Colour (n), calculating weighted value is Rate_min and Rate_Aver, wherein, Rate_min+Rate_Aver=1, Rate_Aver
=2/ Aver, Rate_min=1-Rate_Aver, Aver=(M_Colour (1)+M_Colour (2) ...+M_Colour (n-1)
〕/ N-1；
（2）The light modulation input value of the lamp bead of input N kind colors, calculates light modulation output valve Out_ of demand color Colour (n)
The step of Colour (n), is as follows；
(3) minimum light modulation input value Min of the other N-1 kinds color lamp bead in addition to Colour (n), Min=min are found out
(In_Colour (1), In_Colour (2) ... In_Colour (n-1))；
(4) mean value of other N-1 kind color lamp bead of the calculating in addition to Colour (n), Aver=(In_Colour (1)+
In_Colour(2)……+In_Colour(n-1) 〕/ N-1；
(5) adjusted value of Colour (n), Range=In_ Colour (n)-M_ Colour (n), if Range is ＜ are calculated
0, then Range=0；
(6) weight ratio value, Rate_sum=(Min × Rate_min+ Aver × Rate_Aver)/Imax are calculated；
(7) the light modulation output valve of calculating demand color Colour (n), Out_ Colour (n)=In_ Colour (n)-
Rate_sum× Range；
(8) according to the calculation procedure of step (1) to step (7), the light modulation output valve of Colour (1) to Colour (n-1) is calculated
Out_Colour(x)。
Compared with prior art, the invention has the beneficial effects as follows, when LED lamp reaches all light, colour temperature and illumination are up to standard
And under the standard of even light mixing, the power consumption that light fixture is reduced as far as possible reaches the mesh for improving light efficiency, energy-conserving and environment-protective so as to reduce heat
Mark, the computational methods of permanent illumination are standard according to the mixed light parameter value of maximal illumination Lum_Max, by the light modulation number of controlled output
Controlling colour temperature, illumination, mixed light and the power of light fixture, subdivision and adjustment output sets optimum mixed light numerical value, saves originally value
Power outside being more than colour temperature and illumination, so as to reach the target for improving light efficiency, energy-conserving and environment-protective.
Specific embodiment
With reference to specific embodiment, the present invention will be described in further detail.
The present embodiment is the LED Colour lamps of four colors, and four colors are RED, GREEN, BLUE, WHITE, and its specified illumination is
Lum_RGBW=10000K, the corresponding light modulation numerical value that is input into of specified illumination is respectively M_RED=205, M_GREEN=168, M_BLUE=
255, M_WHITE=255, maximum Imax is 255.
It is standard according to the mixed light parameter value of specified illumination, the colour temperature of light fixture is controlled by control light modulation output valve, is shone
The step of degree, mixed light and power, is as follows.
Step one, calculates weighted value, Rate_Aver=2/ [(2 × 255+168)/3] ≈ 0.01, Rate_min=1-
Rate_Aver=0.99.Step 2, is input into four color RED, the light modulation input value of GREEN, BLUE, WHITE, wherein In_RED=
255, In_GREEN=200, In_BLUE=210, In_WHITE=61, seek light modulation output valve Out_RED of RED.Step 3,
Find out minimum of a value, Min=min (GREEN, BLUE, WHITE)=61.Step 4, calculates mean value, Aver=(GREEN+BLUE+
WHITE)/3=157.Step 5, calculates the adjusted value of RED, Range=In_RED-M_RED=255-205=50.Step 6,
Calculate weight ratio value, Rate_sum=(Min × Rate_min+ Aver × Rate_Aver)/Imax=(61 × 0.99+
157×0.01)/255≈0.243.Step 6, the light modulation output valve of calculating RED, Out_RED=In_RED-Rate_sum ×
Range=255-0.243×50=242.85.The calculation of remaining GREEN, BLUE, WHITE color is with step one to step
Six.
Above-mentioned computational methods are standard according to the mixed light parameter value of maximal illumination Lum_Max, and subdivision and adjustment dims output valve,
Colour temperature, illumination, mixed light and the power of light fixture are controlled by the light modulation numerical value of controlled output, optimum mixed light numerical value is set,
The power saved outside being more than colour temperature and illumination originally.
Claims (1)
1. a kind of computational methods for LED lamp perseverance illumination, lamp bead Colour (1) of the LED lamp including N kind colors is extremely
Colour (n), wherein N >=2, the light modulation input value of N kind color lamp beads is In_Colour (x), wherein 1≤x≤N；Light modulation is defeated
The maximum for entering value is Imax；Light modulation output valve is Out_Colour (x), wherein 1≤x≤N；The specified illumination correspondence of LED lamp
Light modulation input value be M_Colour (x), wherein 1≤x≤N；Input value In_Colour (x) minimum is in N number of lamp bead
Min；The mean value of light modulation input value In_Colour (x) of N number of lamp bead is Aver；The adjusted value of demand color be Range (0≤
Range≤Imax)；Weighted value be Rate_min and Rate_Aver, wherein Rate_min+Rate_Aver=1, weighted value ratio
It is worth for Rate_sum；
It is characterized in that the computational methods comprise the steps：
(1) light modulation input value M_Colour (1) according to corresponding to the specified illumination of LED lamp, M_Colour (2) ... M_
Colour (n), calculating weighted value is Rate_min and Rate_Aver, wherein, Rate_min+Rate_Aver=1, Rate_Aver
=2/ Aver, Rate_min=1-Rate_Aver, Aver=(M_Colour (1)+M_Colour (2) ...+M_Colour (n-1)
〕/ N-1；
（2）The light modulation input value of the lamp bead of input N kind colors, calculates light modulation output valve Out_ of demand color Colour (n)
The step of Colour (n), is as follows；
(3) minimum light modulation input value Min of the other N-1 kinds color lamp bead in addition to Colour (n), Min=min are found out
(In_Colour (1), In_Colour (2) ... In_Colour (n-1))；
(4) mean value of other N-1 kind color lamp bead of the calculating in addition to Colour (n), Aver=(In_Colour (1)+
In_Colour(2)……+In_Colour(n-1) 〕/ N-1；
(5) adjusted value of Colour (n), Range=In_ Colour (n)-M_ Colour (n), if Range is ＜ are calculated
0, then Range=0；
(6) weight ratio value, Rate_sum=(Min × Rate_min+ Aver × Rate_Aver)/Imax are calculated；
(7) the light modulation output valve of calculating demand color Colour (n), Out_ Colour (n)=In_ Colour (n)-
Rate_sum× Range；
(8) according to the calculation procedure of step (1) to step (7), the light modulation output valve of Colour (1) to Colour (n-1) is calculated
Out_Colour(x)。
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| CN201611229617.6A CN106658852B (en) | 2016-12-27 | 2016-12-27 | A kind of calculation method for LED lamp perseverance illumination |
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|---|---|---|---|
| CN201611229617.6A CN106658852B (en) | 2016-12-27 | 2016-12-27 | A kind of calculation method for LED lamp perseverance illumination |
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| CN106658852B CN106658852B (en) | 2019-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178737A (en) * | 2017-07-21 | 2017-09-19 | 江苏恒鹏电气集团有限公司 | A kind of permanent illumination street lamp of high efficiency |
| WO2019015141A1 (en) * | 2017-07-21 | 2019-01-24 | 江苏恒鹏电气集团有限公司 | High-efficiency constant-illumination street lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563954A (en) * | 2006-12-12 | 2009-10-21 | 皇家飞利浦电子股份有限公司 | Illumination system with four primaries |
| CN102958256A (en) * | 2012-10-30 | 2013-03-06 | 福建鸿博光电科技有限公司 | Method, device and lamp for adjusting light distribution curve of light emitting diode (LED) |
| CN104851397A (en) * | 2014-02-18 | 2015-08-19 | 三星显示有限公司 | Method of driving light-source and display apparatus for performing the method |
-
2016
- 2016-12-27 CN CN201611229617.6A patent/CN106658852B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563954A (en) * | 2006-12-12 | 2009-10-21 | 皇家飞利浦电子股份有限公司 | Illumination system with four primaries |
| CN102958256A (en) * | 2012-10-30 | 2013-03-06 | 福建鸿博光电科技有限公司 | Method, device and lamp for adjusting light distribution curve of light emitting diode (LED) |
| CN104851397A (en) * | 2014-02-18 | 2015-08-19 | 三星显示有限公司 | Method of driving light-source and display apparatus for performing the method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178737A (en) * | 2017-07-21 | 2017-09-19 | 江苏恒鹏电气集团有限公司 | A kind of permanent illumination street lamp of high efficiency |
| WO2019015141A1 (en) * | 2017-07-21 | 2019-01-24 | 江苏恒鹏电气集团有限公司 | High-efficiency constant-illumination street lamp |
| WO2019015142A1 (en) * | 2017-07-21 | 2019-01-24 | 江苏恒鹏电气集团有限公司 | High-efficiency constant-illumination street lamp |
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| CN106658852B (en) | 2019-01-25 |
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