CN103079305B - Light-emitting diode (LED) illuminating device and light regulation method thereof - Google Patents

Abstract

The invention discloses a light-emitting diode (LED) illuminating device and a light regulation method thereof. The LED illuminating device comprises at least two LED luminotron sets inside. The light regulation method comprises the following steps of: receiving a control command sent by a remote control device, wherein the control command indicates total brightness to which the LED illuminating device needs to be adjusted; respectively multiplying current brightness ratios of all the LED luminotron sets and the total brightness to which the LED illuminating device needs to be adjusted to obtain brightness to which every LED luminotron set needs to be adjusted, wherein the brightness ratio refers to a specific value of the brightness of the LED luminotron sets to the total brightness of the LED illuminating device; and respectively regulating all the LED luminotron sets to the corresponding brightness to which the LED luminotron sets need to be adjusted. According to the LED illuminating device and the light regulation method thereof disclosed by the invention, an effect that colors cannot be influenced when the brightness of the LED illuminating device is adjusted is achieved, and the problem that the colors can be changed when the brightness of the LED illuminating device is adjusted in the prior art is solved.

Description

LED light device and light adjusting method thereof

Technical field

The present invention relates to lighting technical field, more specifically, relate to a kind of LED light device and light adjusting method thereof.

Background technology

In recent years, along with the popularization of power-saving technology, energy-saving lighting design has become the research emphasis of field of illuminating lamps.The advantages such as LED (Light Emitting Diode, light-emitting diode) luminous efficiency is high owing to having, good energy-conserving effect, energy-saving lighting design is subject to the people's attention.Using LED to make lighting device to replace traditional lighting device, is the development trend of current lighting technical field.

In order to meet the difference hobby of different users in brightness and color, the LED light device of brightness and color can be regulated also to come out successively.At present, the LED group of conventional adjustable brightness and LED light device many employings red, green, blue three kinds of colors of color realizes, by controlling the luminosity of the LED group of red, green, blue three kinds of colors respectively, can realize regulating the brightness of LED light device and the effect of color.Wherein, the display of color mainly relies on the luminosity of the LED group of red, green, blue three kinds of colors ratio shared in the total brightness of LED light device to embody.

The brightness of above-mentioned LED light device and the concrete regulative mode of color are: when regulating brightness, by the value that the brightness of the luminous tube group of red, green, blue three kinds of colors increases or minimizing one is identical, but, the ratio that the luminosity of the LED group of red, green, blue three kinds of colors is shared in total brightness can be had influence on like this, thus change the color of LED light device.That is, when regulating the brightness of LED light device, the change of color can be caused.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of LED light device and light adjusting method thereof, when can solve the brightness of the adjustment LED light device existed in prior art, can cause the problem that color changes.

For achieving the above object, technical scheme of the present invention is achieved in that

On the one hand, provide a kind of light adjusting method of LED light device, include at least two LED groups in this LED light device, the method comprises: receive the control command that remote control is sent, wherein, control command indicates the total brightness that LED light device will be adjusted to; Respectively the current brightness ratio of each LED group is multiplied with the total brightness that will be adjusted to, obtain the luminosity that each LED group will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device; Respectively each LED group is adjusted to the luminosity that will be adjusted to accordingly.

On the other hand, additionally provide a kind of light adjusting method of LED light device, at least two LED groups are included in this LED light device, the method comprises: receive the control command that remote control is sent, wherein, control command indicates the brightness ratio that each LED group will be adjusted to, and brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device; The brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, and obtains the luminosity that each LED group will be adjusted to; Respectively each LED group is adjusted to the luminosity that will be adjusted to accordingly.

Another aspect, additionally provides a kind of LED light device, includes at least two LED groups, it also comprises: command reception module, for receiving the control command that remote control is sent, wherein, control command indicates the total brightness that LED light device will be adjusted to; Control driver module, for respectively the current brightness ratio of each LED group being multiplied with the total brightness that will be adjusted to, obtain the luminosity that each LED group will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device; Light-adjusting module, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.

Another aspect, additionally provide a kind of LED light device, include at least two LED groups, it also comprises: command reception module, for receiving the control command that remote control is sent, wherein, control command indicates the brightness ratio that each LED group will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device; Control driver module, the total brightness current with LED light device of the brightness ratio for each LED group being adjusted to respectively is multiplied, and obtains the luminosity that each LED group will be adjusted to; Light-adjusting module, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.

Technique effect of the present invention: owing to introducing this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the brightness of LED light device, respectively the total brightness that the current brightness ratio of each LED group and LED light device will be adjusted to is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness ratio maintaining each LED group before and after regulating is constant, achieve the effect not affecting color when regulating the brightness of LED light device, when solving the brightness of the adjustment LED light device existed in prior art, the problem that color changes can be caused.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 shows the light adjusting method of the LED light device according to the embodiment of the present invention one;

Fig. 2 shows the light adjusting method of the LED light device according to the embodiment of the present invention four;

Fig. 3 shows the structural representation of the LED light device according to the embodiment of the present invention seven;

Fig. 4 shows the physical circuit schematic diagram of the LED light device according to the embodiment of the present invention nine.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

At present, usually at least two LED groups are included in conventional brightness and the LED light device of color tunable, each LED group can be made up of at least one LED, the color of each LED group can be same to each other or different to each other, can select the luminous color of each LED group according to actual needs, following examples of the present invention are not construed as limiting this.

Embodiment one

Fig. 1 shows the light adjusting method of the LED light device according to the embodiment of the present invention one, comprises the following steps:

Step S102, receive the control command that remote control is sent, wherein, control command indicates the total brightness that LED light device will be adjusted to;

Such as, carry the total brightness that LED light device needs to be adjusted in the control command that remote control is sent, be designated as L '.

Step S104, respectively the total brightness that the current brightness ratio of each LED group and LED light device will be adjusted to is multiplied, obtain the luminosity that each LED group will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Display due to the color of LED light device mainly relies on the luminosity of the LED group of the shades of colour in LED light device ratio shared in the total brightness of LED light device to embody.Therefore, the embodiment of the present invention introduces this parameter of brightness ratio, and defines the ratio that brightness ratio is the luminosity of LED group and the total brightness of LED light device, that is, the ratio that the luminosity of this LED group is shared in total brightness.Thus the total brightness of LED light device equals the luminosity sum of each LED group, and the brightness ratio sum of each LED group equals 1 (100%).

Like this, when regulating the total brightness of LED light device, in order to keep the color of LED light device constant, namely, the brightness ratio of each LED group is constant (before and after regulating, the brightness ratio of each LED group remains unchanged), then, each LED group luminosity B ' that will be adjusted to _imeet following formula (1):

B′ _i＝C _i×L′ (1)

Wherein, C _ifor the current brightness ratio (brightness ratio before namely regulating) of LED group; The total brightness that L ' will be adjusted to for LED light device; I is variable, and the span of i is the first set, and the first set is made up of the value identifying all LED groups, $\underset{i}{\mathrm{\Σ}}{C}_i=1.$

Step S106, is adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.

In the embodiment of the present invention, introduce this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the brightness of LED light device, respectively the total brightness that the current brightness ratio of each LED group and LED light device will be adjusted to is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness ratio maintaining each LED group before and after regulating is constant, achieve the effect not affecting color when regulating the brightness of LED light device, when solving the brightness of the adjustment LED light device existed in prior art, the problem that color changes can be caused.

Embodiment two

In embodiment one, if include three LED groups in LED light device, be respectively red, green and BLUE LED emissions pipe group, then can calculate according to formula (1) the luminosity B ' that redness, green and BLUE LED emissions pipe group will be adjusted to separately _red, B ' _greenwith B ' _blue:

$\left\{\begin{array}{c}{B}_{\mathrm{red}}^{\′}=C_{\mathrm{red}}\×L^{\′}\\ B_{\mathrm{green}}^{\′}=C_{\mathrm{green}}\×L^{\′}\\ B_{\mathrm{blue}}^{\′}=C_{\mathrm{blue}}\×L^{\′}\end{array}\right.---\left(2\right)$

Wherein, B ' _redfor the luminosity that red LED pipe group will be adjusted to, B ' _greenfor the luminosity that green LEDs pipe group will be adjusted to, B ' _bluefor the luminosity that BLUE LED emissions pipe group will be adjusted to, C _redfor the current brightness ratio of red LED pipe group, C _greenfor the current brightness ratio of green LEDs pipe group, C _bluefor the current brightness ratio of BLUE LED emissions pipe group, the total brightness that L ' will be adjusted to for LED light device.

When regulating brightness, with brightness ratio as a reference, in adjustment process, color would not change like this, achieves the effect that when regulating brightness, color can not change.

Embodiment three

In embodiment one, if include the white LED luminary pipe group that two colour temperatures are different in LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, then can calculate according to formula (1) the luminosity B ' that the first white LED luminary pipe group and the second white LED luminary pipe group will be adjusted to separately ₁, B ' ₂:

$\left\{\begin{array}{c}{B}_1^{\′}=C_1\×L^{\′}\\ B_2^{\′}=C_2\×L^{\′}\end{array}\right.---\left(3\right)$

Wherein, B ' ₁for the luminosity that the first white LED luminary pipe group will be adjusted to, B ' ₂for the luminosity that the second white LED luminary pipe group will be adjusted to, C ₁be the current brightness ratio of the first white LED luminary pipe group, C ₂be the current brightness ratio of the second white LED luminary pipe group, the total brightness that L ' will be adjusted to for LED light device.

Equally, when regulating brightness, with brightness ratio as a reference, in adjustment process, color would not change like this, achieves the effect that when regulating brightness, color can not change.

In specific implementation process, the LED group comprised in the LED light device in embodiment one can also be red, green, blue, yellow four kinds of colors, or, be blue and yellow two kinds of colors, or, be purple and green.No matter be which color can adopt the method in the embodiment of the present invention one to carry out the adjustment of brightness, thus the effect realizing regulating the brightness of LED light device and do not affect color.

Embodiment four

In the prior art, identical with Problems existing during adjustment brightness, when regulating color, just increasing or reducing the luminosity of the luminous tube group of red, green, blue three kinds of colors, thus causing the change of the total brightness of LED light device.That is, when regulating the color of LED light device, the change of brightness can be caused.In order to address this problem, the embodiment of the present invention four proposes a kind of light adjusting method of light emitting diode LED lighting device, as shown in Figure 2, comprises the following steps:

Step S202, receive the control command that remote control is sent, wherein, control command indicates the brightness ratio that each LED group will be adjusted to, and brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Such as, the brightness ratio that each LED group will be adjusted to is carried in control command.In actual applications, because the brightness ratio sum of each LED group equals 1, in order to economize on resources, the value of the brightness ratio of a LED group can be carried less.

Step S204, the brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, and obtains the luminosity that each LED group will be adjusted to;

Display due to the color of LED light device mainly relies on the luminosity of the LED group of the shades of colour in LED light device ratio shared in the total brightness of LED light device to embody.Therefore, the embodiment of the present invention introduces this parameter of brightness ratio, and defines the ratio that brightness ratio is the luminosity of LED group and the total brightness of LED light device, that is, the ratio that the luminosity of this LED group is shared in total brightness.Thus the total brightness of LED light device equals the luminosity sum of each LED group, and the brightness ratio sum of each LED group equals 1 (100%).

Like this, when regulating the color of LED light device, in order to keep the total brightness of LED light device constant, then, the luminosity B ' that each LED group will be adjusted to _imeet following formula (4):

B′ _i＝C′ _i×L (4)

Wherein, C ' _ifor the brightness ratio that LED group will be adjusted to; L is the current total brightness of LED light device; I is variable, and the span of i is the first set, and the first set is made up of the value identifying at least two LED groups,

Step S206, is adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.

In the embodiment of the present invention, introduce this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the color of LED light device, the brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness maintaining LED light device before and after regulating is constant, achieve the effect not affecting brightness when regulating the color of LED light device, when solving the color of the adjustment LED light device existed in prior art, the problem that brightness changes can be caused.

Embodiment five

In embodiment four, if include three LED groups in LED light device, be respectively red, green and BLUE LED emissions pipe group, then can calculate according to formula (4) the luminosity B ' that redness, green and BLUE LED emissions pipe group will be adjusted to _red, B ' _green, B ' _blue:

$\left\{\begin{array}{c}{B}_{\mathrm{red}}^{\′}=C_{\mathrm{red}}^{\′}\×L\\ B_{\mathrm{green}}^{\′}=C_{\mathrm{green}}^{\′}\×L\\ B_{\mathrm{blue}}^{\′}=C_{\mathrm{blue}}^{\′}\×L\end{array}\right.---\left(5\right)$

Wherein, B ' _redfor the luminosity that red LED pipe group will be adjusted to, B ' _greenfor the luminosity that green LEDs pipe group will be adjusted to, B ' _bluefor the luminosity that BLUE LED emissions pipe group will be adjusted to, C ' _redfor the brightness ratio that red LED pipe group will be adjusted to, C ' _greenfor the brightness ratio that green LEDs pipe group will be adjusted to, C ' _bluefor the brightness ratio that BLUE LED emissions pipe group will be adjusted to, L is the current total brightness of LED light device (total brightness before namely regulating).

Work as C _red=C _bluewhen=1/3, color is white, C _redvalue be greater than C _bluevalue time color can be partially red, C _redvalue be less than C _bluevalue time color can be partially blue.C _red+ C _bluevalue when being less than 2/3 color partially green.The larger colour cast of difference is more obvious.

When regulating the color of LED light device, with total brightness as a reference, in adjustment process, total brightness would not change like this, achieves the effect that when regulating color, brightness can not change.

Embodiment six

In embodiment four, if include the white LED luminary pipe group that two colour temperatures are different in LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, then can calculate according to formula (4) the luminosity B ' that the first white LED luminary pipe group and the second white LED luminary pipe group will be adjusted to ₁with B ' ₂:

$\left\{\begin{array}{c}{B}_1^{\′}=C_1^{\′}\×L\\ B_2^{\′}=C_2^{\′}\×L\end{array}\right.---\left(6\right)$

Wherein, B ' ₁for the luminosity that the first white LED luminary pipe group will be adjusted to, B ' ₂for the luminosity that the second white LED luminary pipe group will be adjusted to, C ' ₁for the brightness ratio that the first white LED luminary pipe group will be adjusted to, C ' ₂for the brightness ratio that the second white LED luminary pipe group will be adjusted to, L is the current total brightness of LED light device.

Equally, when regulating the color of LED light device, with total brightness as a reference, in adjustment process, total brightness would not change like this, achieves the effect that when regulating color, brightness can not change.

In specific implementation process, the LED group comprised in the LED light device in embodiment four can also be red, green, blue, yellow four kinds of colors, or, be blue and yellow two kinds of colors, or, be purple and green.No matter be which color can adopt the method in the embodiment of the present invention four to carry out the adjustment of color, thus the effect realizing regulating the color of LED light device and do not affect brightness.

Obviously, when reality is implemented, embodiment one and the control method in embodiment four can be combined, equally, embodiment two and embodiment five, embodiment three can be combined with the method for embodiment six, thus can realize not affecting color when regulating the brightness of LED light device, regulate during color and do not affect brightness, that is, the brightness be independent of each other and the technique effect of color adjustment.Compared with prior art, the present invention can make the light of LED light device regulate simple and fast more, and, do not need repeatedly to regulate the effect that just can reach needs, add reliability.

Embodiment seven

Fig. 3 shows the structural representation of the LED light device according to the embodiment of the present invention seven, and this LED light device can adopt the method for embodiment one to carry out the adjustment of brightness.

As shown in Figure 3, this LED light device comprises: at least two LED groups 10, command reception module 20, control driver module 30 and light-adjusting modules 40, wherein:

Command reception module 20, for receiving the control command that remote control is sent, wherein, this control command indicates the total brightness that LED light device will be adjusted to; Such as, the total brightness that LED light device needs to be adjusted to is carried in the control command that remote control is sent.

Control driver module 30, for respectively the total brightness that the current brightness ratio of each LED group 10 and LED light device will be adjusted to being multiplied, obtain the luminosity that each LED group 10 will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Light-adjusting module 40, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group 10.

Display due to the color of LED light device mainly relies on the luminosity of the LED group of the shades of colour in LED light device ratio shared in the total brightness of LED light device to embody.Therefore, the embodiment of the present invention introduces this parameter of brightness ratio, and defines the ratio that brightness ratio is the luminosity of LED group and the total brightness of LED light device, that is, the ratio that the luminosity of this LED group is shared in total brightness.Thus the total brightness of LED light device equals the luminosity sum of each LED group, and the brightness ratio sum of each LED group equals 1 (100%).

Like this, when regulating the total brightness of LED light device, in order to keep the color of LED light device constant, namely, the brightness ratio of each LED group is constant (before and after regulating, the brightness ratio of each LED group remains unchanged), then, each LED group luminosity B ' that will be adjusted to _imeet above-mentioned formula (1).

If include three LED groups in LED light device, be respectively red, green and BLUE LED emissions pipe group, then can calculate according to formula (1) the luminosity B ' that redness, green and BLUE LED emissions pipe group will be adjusted to separately _red, B ' _greenwith B ' _bluemeet above-mentioned formula (2).

If include the white LED luminary pipe group that two colour temperatures are different in LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, then can calculate according to formula (1) the luminosity B ' that the first white LED luminary pipe group and the second white LED luminary pipe group will be adjusted to separately ₁, B ' ₂meet above-mentioned formula (3).

In the embodiment of the present invention seven, introduce this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the brightness of LED light device, respectively the total brightness that the current brightness ratio of each LED group and LED light device will be adjusted to is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness ratio maintaining each LED group before and after regulating is constant, achieve the effect not affecting color when regulating the brightness of LED light device, when solving the brightness of the adjustment LED light device existed in prior art, the problem that color changes can be caused.

Embodiment eight

LED light device as shown in Figure 3 can also adopt the method for embodiment four to carry out the adjustment of color.

As shown in Figure 3, command reception module 20 can also be used for receiving the control command that remote control is sent, wherein, control command indicates the brightness ratio that each LED group 10 will be adjusted to, wherein, brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device; Such as, the brightness ratio that each LED group will be adjusted to is carried in control command.In actual applications, because the brightness ratio sum of each LED group equals 1, in order to economize on resources, the value of the brightness ratio of a LED group can be carried less.

Control driver module 30, the total brightness current with LED light device of the brightness ratio for each LED group 10 being adjusted to respectively is multiplied, and obtains the luminosity that each LED group 10 will be adjusted to;

Light-adjusting module 40, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group 10.

Display due to the color of LED light device mainly relies on the luminosity of the LED group of the shades of colour in LED light device ratio shared in the total brightness of LED light device to embody.Therefore, the embodiment of the present invention introduces this parameter of brightness ratio, and defines the ratio that brightness ratio is the luminosity of LED group and the total brightness of LED light device, that is, the ratio that the luminosity of this LED group is shared in total brightness.Thus the total brightness of LED light device equals the luminosity sum of each LED group, and the brightness ratio sum of each LED group equals 1 (100%).

Like this, when regulating the color of LED light device, in order to keep the total brightness of LED light device constant, then, the luminosity B ' that each LED group will be adjusted to _imeet above-mentioned formula (4).

If include three LED groups in LED light device, be respectively red, green and BLUE LED emissions pipe group, then can calculate according to formula (4) the luminosity B ' that redness, green and BLUE LED emissions pipe group will be adjusted to _red, B ' _green, B ' _bluemeet above-mentioned formula (5).

If include the white LED luminary pipe group that two colour temperatures are different in LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, then can calculate according to formula (4) the luminosity B ' that the first white LED luminary pipe group and the second white LED luminary pipe group will be adjusted to ₁with B ' ₂meet above-mentioned formula (6).

In the embodiment of the present invention eight, introduce this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the color of LED light device, the brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness maintaining LED light device before and after regulating is constant, achieve the effect not affecting brightness when regulating the color of LED light device, when solving the color of the adjustment LED light device existed in prior art, the problem that brightness changes can be caused.

Embodiment nine

Fig. 4 shows the physical circuit schematic diagram of the LED light device according to the embodiment of the present invention nine, and controlling driver module can be single-chip microcomputer, and command reception module is all not shown with control driver module.Light-adjusting module can be realized by NPN switch triode.

As shown in Figure 4, LED_R, LED_G and LED_B are followed successively by redness, green and blue LED group; Q1, Q2 and Q3 are NPN switch triode, and the base stage of triode is by resistance and three pwm signals: PWM_R, PWM_G and PWM_B are connected, and the collector electrode of triode is connected with the negative electrode of light-emitting diode; D1, D2 and D3 are current regulator diode, and anode is connected with power supply DC+, and negative electrode is connected with the anode of light-emitting diode group LED_R, LED_G and LED_B respectively.The collector and emitter of D1, LED_R and Q1 forms a series loop; During Q1 cut-off, whole loop does not have electric current to flow through; During Q1 conducting, the electric current in whole loop is controlled by current regulator diode D1.The collector and emitter of D2, LED_G and Q2 forms a series loop; During Q2 cut-off, whole loop does not have electric current to flow through; During Q2 conducting, the electric current in whole loop is controlled by current regulator diode D2.The collector and emitter of D3, LED_B and Q3 forms a series loop; During Q3 cut-off, whole loop does not have electric current to flow through; During Q3 conducting, the electric current in whole loop is controlled by current regulator diode D3.Therefore, as long as the conducting of control Q1, Q2 and Q3 and cut-off just can control the luminosity of light-emitting diode group LED_R, LED_G and LED_B.

If the base stage that three pwm signals are input to Q1, Q2 and Q3 respectively one to one just can be controlled respectively one to one the luminosity of redness, green, blue three kinds of colour light emitting pipe groups with these three pwm signals.

The single-chip microcomputer exported to have three 8 pwm signals is below described:

The pwm signal of 8 has 256 grades, as long as toward the data of the corresponding PWM control register write 0 ~ 255 of single-chip microcomputer during use, single-chip microcomputer according to the data of write, will export the waveform of corresponding duty ratio.Here, the span of the luminosity of luminous tube group is 0 ~ 255, directly the luminosity of three luminous tube groups can be write corresponding PWM control register.Consistent in order to ensure the high-high brightness (maximum of total brightness) when the high-high brightness of solid color luminous tube group luminescence is luminous with whole luminous tube group, the maximum arranging total brightness is the maximum luminousing brightness of solid color luminous tube group, and namely the maximum of total brightness is 255.In actual use, as long as the B ' that will calculate _red, B ' _green, B ' _bluevalue write PWM control register just can obtain corresponding brightness and color effect.

During specific works, when regulating the total brightness of LED light device, single-chip microcomputer is obtaining total brightness L ' that LED light device will be adjusted to afterwards, according to formula (1) respectively by brightness ratio C that light-emitting diode group LED_R, LED_G and LED_B will be adjusted to _red, C _green, C _bluethe total brightness L current with LED light device is multiplied, and obtains the luminosity B ' that LED_R, LED_G and LED_B will be adjusted to _red, B ' _green, B ' _blue, then, according to B ' _red, B ' _green, B ' _blueexport three road pwm signals: PWM_R, PWM_G and PWM_B, wherein, PWM_R corresponds to B ' _red, PWM_G correspond to B ' _green, PWM_G correspond to B ' _blue.Thus, by Q1, Q2 and Q3 respectively one to one the luminosity of control LED_R, LED_G and LED_B be adjusted to B ' _red, B ' _green, B ' _blue, and then the effect realizing regulating brightness and do not affect color.

In like manner, when regulating the color of LED light device, the brightness ratio C ' that single-chip microcomputer is obtaining LED_R, LED_G and LED_B and will be adjusted to _red, C ' _green, C ' _blueafterwards, according to formula (5) respectively by brightness ratio C ' that LED_R, LED_G and LED_B will be adjusted to _red, C ' _green, C ' _bluethe total brightness L current with LED light device is multiplied, and obtains the luminosity B ' that LED_R, LED_G and LED_B will be adjusted to _red, B ' _green, B ' _blue, then, according to B ' _red, B ' _green, B ' _blueexport three road pwm signals: PWM_R, PWM_G and PWM_B, wherein, PWM_R corresponds to B ' _red, PWM_G correspond to B ' _green, PWM_G correspond to B ' _blue.Thus, by Q1, Q2 and Q3 respectively one to one the luminosity of control LED_R, LED_G and LED_B be adjusted to B ' _red, B ' _green, B ' _blue, and then the effect realizing regulating color and do not affect brightness.

As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:

Introduce this parameter of brightness ratio, and define the ratio of luminosity shared by total brightness that brightness ratio is LED group, namely, luminosity/the total brightness of LED group, when regulating the color of LED light device, the brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness maintaining LED light device before and after regulating is constant, achieve the effect not affecting brightness when regulating the color of LED light device, when solving the color of the adjustment LED light device existed in prior art, the problem that brightness changes can be caused.In like manner, when regulating the color of LED light device, the brightness ratio that each LED group will be adjusted to the respectively total brightness current with LED light device is multiplied, the luminosity that each LED group will be adjusted to can be obtained, thus the brightness maintaining LED light device before and after regulating is constant, achieve the effect not affecting brightness when regulating the color of LED light device, when solving the color of the adjustment LED light device existed in prior art, the problem that brightness changes can be caused.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a light adjusting method for light emitting diode LED lighting device, include at least two LED groups in described LED light device, it is characterized in that, described method comprises:

Receive the control command that remote control is sent, wherein, described control command indicates the total brightness L ' that described LED light device will be adjusted to;

Respectively by the current brightness ratio C of each LED group _ibe multiplied with the described total brightness L ' that will be adjusted to, obtain the luminosity B that each LED group will be adjusted to _i', that is, B _i'=C _i× L ', wherein, described brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device, and i is variable, and the span of i is the first set, and described first set is made up of the value of at least two LED groups described in mark,

Respectively each LED group is adjusted to the luminosity that will be adjusted to accordingly.

2. method according to claim 1, it is characterized in that, three LED groups are included in described LED light device, be respectively red, green and BLUE LED emissions pipe group, then respectively the current brightness ratio of each LED group is multiplied with the described total brightness that will be adjusted to, obtains the luminosity that each LED group will be adjusted to and comprise:

$\left\{\begin{array}{c}{B}_{\mathrm{red}}^{\′}=C_{\mathrm{red}}\×L^{\′}\\ B_{\mathrm{green}}^{\′}=C_{\mathrm{green}}\×L^{\′}\\ B_{\mathrm{blue}}^{\′}=C_{\mathrm{blue}}\×L^{\′}\end{array}\right.,$ Wherein, B _r' _edfor the luminosity that red LED pipe group will be adjusted to, B _g' _reenfor the luminosity that green LEDs pipe group will be adjusted to, B _b' _luefor the luminosity that BLUE LED emissions pipe group will be adjusted to, C _redfor the current brightness ratio of red LED pipe group, C _greenfor the current brightness ratio of green LEDs pipe group, C _bluefor the current brightness ratio of BLUE LED emissions pipe group, the total brightness that L ' will be adjusted to for LED light device.

3. method according to claim 1, it is characterized in that, the white LED luminary pipe group that two colour temperatures are different is included in described LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, then respectively the current brightness ratio of each LED group is multiplied with the described total brightness that will be adjusted to, obtains the luminosity that each LED group will be adjusted to and comprise:

$\left\{\begin{array}{c}{B}_1^{\′}=C_1\×L^{\′}\\ B_2^{\′}=C_2\×L^{\′}\end{array}\right.,$ Wherein, B ₁' the luminosity that will be adjusted to for the first white LED luminary pipe group, B ₂' the luminosity that will be adjusted to for the second white LED luminary pipe group, C ₁be the current brightness ratio of the first white LED luminary pipe group, C ₂be the current brightness ratio of the second white LED luminary pipe group, the total brightness that L ' will be adjusted to for LED light device.

4. a light adjusting method for light emitting diode LED lighting device, include at least two LED groups in described LED light device, it is characterized in that, described method comprises:

Receive the control command that remote control is sent, wherein, described control command indicates the brightness ratio that each LED group will be adjusted to, and described brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Respectively by brightness ratio C that each LED group will be adjusted to _i' total brightness the L current with described LED light device is multiplied, and obtains the luminosity B that each LED group will be adjusted to _i', that is: B _i'=C _i' × L, i is variable, and the span of i is the first set, and described first set is made up of the value of at least two LED groups described in mark,

Respectively each LED group is adjusted to the luminosity that will be adjusted to accordingly.

5. method according to claim 4, it is characterized in that, three LED groups are included in described LED light device, be respectively red, green and BLUE LED emissions pipe group, the brightness ratio that then each LED group will be adjusted to the respectively total brightness current with described LED light device is multiplied, and obtains the luminosity that each LED group will be adjusted to and comprises:

$\left\{\begin{array}{c}{B}_{\mathrm{red}}^{\′}=C_{\mathrm{red}}^{\′}\×L\\ B_{\mathrm{green}}^{\′}=C_{\mathrm{green}}^{\′}\×L\\ B_{\mathrm{blue}}^{\′}=C_{\mathrm{blue}}^{\′}\×L\end{array}\right.,$ Wherein, B _r' _edfor the luminosity that red LED pipe group will be adjusted to, B _g' _reenfor the luminosity that green LEDs pipe group will be adjusted to, B _b' _luefor the luminosity that BLUE LED emissions pipe group will be adjusted to, C _r' _edfor the brightness ratio that red LED pipe group will be adjusted to, C _g' _reenfor the brightness ratio that green LEDs pipe group will be adjusted to, C _b' _luefor the brightness ratio that BLUE LED emissions pipe group will be adjusted to, L is the current total brightness of LED light device.

6. method according to claim 4, it is characterized in that, the white LED luminary pipe group that two colour temperatures are different is included in described LED light device, be respectively the first white LED luminary pipe group and the second white LED luminary pipe group, the brightness ratio that then each LED group will be adjusted to the respectively total brightness current with described LED light device is multiplied, and obtains the luminosity that each LED group will be adjusted to and comprises:

$\left\{\begin{array}{c}{B}_1^{\′}=C_1^{\′}\×L\\ B_2^{\′}=C_2^{\′}\×L\end{array}\right.,$ Wherein, B ₁' the luminosity that will be adjusted to for the first white LED luminary pipe group, B ₂' the luminosity that will be adjusted to for the second white LED luminary pipe group, C ₁' the brightness ratio that will be adjusted to for the first white LED luminary pipe group, C ₂' the brightness ratio that will be adjusted to for the second white LED luminary pipe group, L is the current total brightness of LED light device.

7. a light emitting diode LED lighting device, includes at least two LED groups, it is characterized in that, also comprise:

Command reception module, for receiving the control command that remote control is sent, wherein, described control command indicates the total brightness that described LED light device will be adjusted to;

Control driver module, for respectively the current brightness ratio of each LED group being multiplied with the described total brightness that will be adjusted to, obtain the luminosity that each LED group will be adjusted to, wherein, described brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Light-adjusting module, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.

8. a light emitting diode LED lighting device, includes at least two LED groups, it is characterized in that, also comprise:

Command reception module, for receiving the control command that remote control is sent, wherein, described control command indicates the brightness ratio that each LED group will be adjusted to, wherein, described brightness ratio refers to the ratio of the luminosity of LED group and the total brightness of LED light device;

Control driver module, the total brightness current with described LED light device of the brightness ratio for each LED group being adjusted to respectively is multiplied, and obtains the luminosity that each LED group will be adjusted to;

Light-adjusting module, for being adjusted to the luminosity that will be adjusted to accordingly respectively by each LED group.