CN109379800A - A kind of lumination of light emitting diode control method and device - Google Patents
A kind of lumination of light emitting diode control method and device Download PDFInfo
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- CN109379800A CN109379800A CN201811067345.3A CN201811067345A CN109379800A CN 109379800 A CN109379800 A CN 109379800A CN 201811067345 A CN201811067345 A CN 201811067345A CN 109379800 A CN109379800 A CN 109379800A
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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]
- H05B45/10—Controlling the intensity of the light
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
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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]
- H05B45/20—Controlling the colour of the light
- H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
Abstract
The invention discloses a kind of lumination of light emitting diode control method and device, applied to the color lamp comprising light emitting diode and microcontroller, the embodiment of the present application is being capable of color change minimum unit in the brightness degree and full color wheel by obtaining the light emitting diode, and the brightness of the light emitting diode is controlled according to the brightness degree, the duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode is adjusted according to the color change minimum unit simultaneously, to control the color changing rate of the light emitting diode, achieve the purpose that light-adjusting and speed-adjusting.
Description
Technical field
The present invention relates to signal light control field, in particular to a kind of lumination of light emitting diode control method and device.
Background technique
Lamp decoration using very extensive, in family, market, stage or even many public places etc., all occur each
The lamp decoration of kind various kinds, and the form showed is also diversification.The color lamp wherein used in most cases as atmosphere lamp
There is indispensable status, and that the composition of color lamp uses mostly is all RGB LED, the three of visible light are former in nature
Mixture of colours principle can be realized PWM control by MCU, need color to reach different proportion RGB and be mutually mixed to obtain.
In realizing process of the present invention, inventor's discovery is above, and at least there are the following problems in the related technology: big absolutely at present
Most RGB LED products can realize showing for a variety of static colors, there are also the dynamic change that product can accomplish color,
To achieving the effect that a kind of gradual change, the conversion ratio for the color that makes one to get up soon is milder smooth, but the process of its dynamic change
The switching being often fixed as between certain colors, and often also there was only the adjusting of brightness, and have ignored the fast of dynamic change
It is slow to adjust.
Summary of the invention
In view of the above drawbacks of the prior art, the object of the present invention is to provide a kind of lumination of light emitting diode control method and
Device is able to solve the problem of light emitting diode cannot achieve brightness and speed while carry out dynamic regulation.
In order to solve the above technical problems, in a first aspect, the embodiment of the invention provides a kind of controls of lumination of light emitting diode
Method the described method comprises the following steps applied to the color lamp comprising light emitting diode and microcontroller:
Obtain the color change minimum unit in the brightness degree and full color wheel of the light emitting diode；
The brightness of the light emitting diode is controlled according to the brightness degree, while according to the color change minimum unit
The duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode is adjusted, to control the face of the light emitting diode
Color change speed,
Wherein, the color change minimum unit are as follows: produced in full color wheel when a certain color change in tri- kinds of colors of RGB
Raw color change value.
Optionally, the method also includes:
The full color wheel is subjected to equal proportion region division, and obtains what the light-emitting diode full color wheel equal proportion divided
The region quantity of color change；
Natural number sequence is pressed in clockwise and counterclockwise directions in the region for the color change that the full color wheel equal proportion divides
Number is zone number 1 to N, and the zone number meets following relationship: N=N1, wherein N1 indicates that full color wheel equal proportion is drawn
The region quantity for the color change divided.
Optionally, the method also includes:
Starting color and end color when determining light emitting diode variation in full color wheel, and obtain practical gradual change
The starting color and the corresponding zone number of end color of process；
The practical progressive formation is described etc. between color to terminating successively to pass through starting color by the zone number
The region of the color change of ratio cut partition.
Optionally, the method also includes:
The practical progressive formation of the light emitting diode is obtained by the quantity in region；
And the transformation period of the practical progressive formation of light emitting diode meets following relationship:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_
Cycle indicates the period of the pwm signal, and (Level)/100 indicates that the value range of brightness degree and Level are 0-100,
Change_value indicates color change minimum unit value, and N2 indicates practical progressive formation by the quantity in region.
Optionally, the method also includes:
Obtain the region quantity that actual cycle process is passed through；
The region quantity that the actual cycle process is passed through includes, ascending and descending by the zone number
Sequence successively returns the number of regions for the color change that equal proportion divides between starting color by starting color to end color
Amount；
Or, by the ascending or descending sequence of the zone number successively pass through starting color to terminate color it
Between equal proportion divide color change region quantity.
In order to solve the above technical problems, second aspect, the embodiment of the invention provides a kind of controls of lumination of light emitting diode
Device, applied to the color lamp comprising light emitting diode and microcontroller, described device includes:
Module is obtained, the color change in the brightness degree and full color wheel for obtaining the light emitting diode is minimum single
Position；
Control module, for controlling the brightness of the light emitting diode according to the brightness degree, while according to the face
Color change minimum unit adjusts the duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode, described in control
The color changing rate of light emitting diode,
Wherein, the color change minimum unit are as follows: produced in full color wheel when a certain color change in tri- kinds of colors of RGB
Raw color change value.
Optionally, the acquisition module is also used to:
After the full color wheel is carried out equal proportion region division, obtain what the light-emitting diode full color wheel equal proportion divided
The region quantity of color change；
Natural number sequence is pressed in clockwise and counterclockwise directions in the region for the color change that the full color wheel equal proportion divides
Number is zone number 1 to N, and the zone number meets following relationship: N=N1, wherein N1 indicates that full color wheel equal proportion is drawn
The region quantity for the color change divided.
Optionally, described device further include:
Determining module, the determining module are used for: starting face when determining light emitting diode variation in full color wheel
Color and end color；
The module that obtains is also used to: being obtained the starting color of practical progressive formation and is terminated the corresponding region of color and compiles
Number；
The practical progressive formation is described etc. between color to terminating successively to pass through starting color by the zone number
The region of the color change of ratio cut partition；
The acquisition module is also used to:
The practical progressive formation of the light emitting diode is obtained by the quantity in region；
And the transformation period of the practical progressive formation of light emitting diode meets following relationship:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_
Cycle indicates the period of the pwm signal, and (Level)/100 indicates that the value range of brightness degree and Level are 0-100,
Change_value indicates color change minimum unit value, and N2 indicates practical progressive formation by the quantity in region.
Optionally, the acquisition module is also used to:
Obtain the region quantity that actual cycle process is passed through；
The region quantity that the actual cycle process is passed through includes, ascending and descending by the zone number
Sequence successively returns the number of regions for the color change that equal proportion divides between starting color by starting color to end color
Amount；
Or, by the ascending or descending sequence of the zone number successively pass through starting color to terminate color it
Between equal proportion divide color change region quantity.
In order to solve the above technical problems, the third aspect, the embodiment of the present application provides a kind of color lamp, comprising:
Light emitting diode；And
The microcontroller of the lumination of light emitting diode can be controlled；Wherein,
The microcontroller is for being able to carry out such as above-mentioned light emitting diode when controlling the lumination of light emitting diode
Light-emitting control method.
In order to solve the above technical problems, fourth aspect, the embodiment of the present application provides a kind of storage medium, the storage medium
It is stored with executable instruction, when the executable instruction is by microcontroller, executes the microcontroller as described above
Lumination of light emitting diode control method.
In order to solve the above technical problems, the 5th aspect, the embodiment of the present application also provides a kind of program product, described programs
Product includes the program of storage on a storage medium, and described program includes program instruction, when described program is instructed by miniature control
When device executes, the microcontroller is made to execute lumination of light emitting diode control method as described above.
Compared with prior art, the beneficial effects of the present invention are: being in contrast to the prior art, the embodiment of the present invention is mentioned
A kind of lumination of light emitting diode control method is supplied；It designs by means of the present invention, the static state of RGB LED not only may be implemented
Color shows the basic function with dynamic change, can also realize while the brightness and speed of RGB LED being adjusted.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the module in attached drawing with same reference numbers label are expressed as similar module, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of flow diagram of light emitting diode control method provided by the embodiments of the present application；
Fig. 2 is the control method that gradual change is recycled between optional two kinds of colors of light emitting diode provided by the embodiments of the present application
Schematic diagram；
Fig. 3 is showing for the practical progressive formation provided by the embodiments of the present application region that equal proportion divides clockwise and anticlockwise
It is intended to；
Fig. 4 is a kind of schematic diagram of lumination of light emitting diode control device provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of color lamp provided by the embodiments of the present application.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the application, not
For limiting the application.
It should be noted that each feature in the embodiment of the present application can be combined with each other, in this Shen if do not conflicted
Within protection scope please.In addition, though having carried out functional module division in schematic device, shows patrol in flow charts
Sequence is collected, but in some cases, it can be shown in the sequence execution in the module division being different from device or flow chart
The step of out or describing.
The embodiment of the present application provides a kind of light emitting diode control method, device and a kind of comprising light emitting diode and miniature
The color lamp of controller.Wherein, the light emitting diode control method is that one kind is accounted for based on pulse width modulating signal (pwm signal)
Sky monochromatic value more each than control diode obtains the light mixing scheme of certain brightness, by obtaining in light-emitting diode full color wheel
Color change minimum unit, thus to control the color changing rate of the light emitting diode.
Light emitting diode control method provided by the embodiments of the present application can be applied to the technology of a variety of colour lamplight modulation
Field, for example, LED revolving light, LED light tape etc., are particularly suitable for lighting area.For example, the embodiment of the present application can be based on
Brightness and velocity modulation side of the inventive concept LED of the light emitting diode control method of offer as the ornament lamp of color changeable
Method, and then obtain more smooth color change effect.Light emitting diode control method provided by the embodiments of the present application, which can have, appoints
Having for type of anticipating is calculated with the execution of the microcontroller of control ability, such as MCU etc..
Specifically, with reference to the accompanying drawing, the embodiment of the present application is further elaborated.
Embodiment one
Fig. 1 is a kind of flow diagram of light emitting diode control method provided by the embodiments of the present application, referring to Figure 1,
This method includes but is not limited to following steps:
Step 110: obtaining the color change minimum unit in the brightness degree and full color wheel of the light emitting diode.
In the embodiment of the present application, described " brightness degree of light emitting diode " (RGB brightness degree) is light emitting diode
The whole selectable section of brightness can unify the bright journey for adjusting three kinds of Color Channels of light emitting diode red, green, blue
Degree.Full when " the color change minimum unit in full color wheel " is a certain color change in three kinds of colors of light emitting diode
The color change value generated in colour wheel.
In the embodiment of the present application, the specific embodiment of " brightness degree for obtaining light emitting diode ", which may is that, passes through
Adjustable virtual push button is set on the display screens such as mobile terminal, and the virtual push button can be multiple selectable brightness etc.
Each one button of correspondence of grade, is also possible to a dragging item, and by brightness degree, one direction dragging item is bright to obtain from small to large
Spend grade.Alternatively, being also possible to multistage mechanical button, such as block switch, knob of entity etc..For different application scenarios
Or controlled device, it can choose the mode of the RGB brightness degree of different acquisition light emitting diodes.For example, it is assumed that one
A knob is provided on a color lamp, user is under different scenes, such as
Knob is rotated to different direction, and the microcontroller in color lamp obtains the different RGB brightness degree of light emitting diode.Actually answering
In, the mode of " brightness degree for obtaining light emitting diode " is not limited to mode described above, and the embodiment of the present application is to this
It is not especially limited.
In the embodiment of the present application, " obtaining the color change minimum unit in the full color wheel of the light emitting diode " can be with
It is the minimum unit that full color wheel is divided into several color changes, in each minimum unit, any one face of tri- kinds of R, G, B color
One fixed content value of color change.For example, the content of the value of tri- kinds of colors of R, G, B all changes to 100% from 0% respectively, become
Changing section is 25%, that is, assume from pure red: (R, G, B)=(100%, 0%, 0%) changes to gilvous: (R, G, B)=
(100%, 100%, 0%), the gilvous can be considered pure red and pure green Neutral colour in tri- kinds of colors of R, G, B, then from
The pure red gilvous that changes to needs the color change minimum unit passed through successively are as follows: (R, G, B)=(100%, 0%, 0%),
(R, G, B)=(100%, 25%, 0%), (R, G, B)=(100%, 50%, 0%), (R, G, B)=(100%, 75%,
0%), (R, G, B)=(100%, 100%, 0%).In practical applications, " in the full color wheel for obtaining the light emitting diode
The mode of color change minimum unit " is not limited to mode described above, the color of selection be not limited to more than color, variation
Section is also not necessarily limited to above-described value, and the embodiment of the present application to being all not especially limited above.
Step 120: the brightness of the light emitting diode is controlled according to the brightness degree, while according to the color change
Minimum unit adjusts the duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode, to control described luminous two
The color changing rate of pole pipe,
Wherein, the color change minimum unit are as follows: produced in full color wheel when a certain color change in tri- kinds of colors of RGB
Raw color change value.
In the embodiment of the present application, " the color change minimum unit " is specifically tri- kinds of color changes of R, G, B respectively
Minimum unit value, the color for the light that the light emitting diode that obtains after tri- kinds of color light mixings of R, G, B issues.According to described brightness etc.
Grade controls the brightness of the light emitting diode, while being adjusted according to the color change minimum unit for controlling light emitting diode
The duty ratio of the pwm signal of middle tri- kinds of colors of RGB, to control the specific embodiment party of the color changing rate of the light emitting diode
Formula may is that after getting the RGB brightness degree of the Light-Emitting Diode, obtain red, green, blue in the color of Light-Emitting Diode
The pulse duration of three kinds of Color Channels accounts for the duty ratio in pwm signal period, exports the value of corresponding R, G, B.And described tri- kinds of R, G, B
The value of color meets following relationship:
R_value=R_dutycycle* (Level)/100,
G_value=G_dutycycle* (Level)/100,
B_value=B_dutycycle* (Level)/100,
Wherein, R_value, G_value, B_value respectively indicate the value of R, G, B after color change, and (Level)/
100 indicate that the value range of brightness degree and Level are 0-100, and R_dutycycle, G_dutycycle, B_dutycycle divide
Not Biao Shi R, G, B PWM duty cycle.
In the embodiment of the present application, described " (Level)/100 " is above-mentioned RGB brightness degree.It is described that " PWM of R, G, B are accounted for
Empty ratio " i.e. " R_dutycycle, G_dutycycle and B_dutycycle " be pulse width modulating signal in one cycle,
The ratio of time and pulse width modulating signal period that the pulse of three kinds of Color Channels of red, green, blue occupies, and described R, G, B
PWM duty cycle, i.e. time for occupying of the pulse of three kinds of Color Channels of red, green, blue, i.e. duration R_dutycycle, G_
The value range of dutycycle and B_dutycycle is all 0-T_cycle, and " T_cycle " indicates pwm signal period (arteries and veins
Rush the bandwidth modulation signals period).
Specifically, in the embodiment of the present application, for example, selecting or setting brightness degree as 100%, in a full color wheel
The middle a certain color change minimum unit of selection, i.e., above-mentioned color change minimum unit, microprocessor obtain color change minimum
The duty ratio of three kinds of Color Channels of corresponding red, green, blue of unit, microprocessor are sent to hair after the value of R, G, B is calculated
Tri- channels R, G, B of optical diode, the lamp of tri- different colours of R, G, B issue the corresponding color of value and brightness of R, G, B, mix
The light mixing color under object brightness is obtained after light.Adjust ratio value, that is, R_dutycycle:G_ of the PWM duty cycle of R, G, B
Dutycycle:B_dutycycle can be adjusted to color of object.For example, R_dutycycle:G_dutycycle:B_
Pure red, R_dutycycle:G_dutycycle:B_dutycycle=is shown as when dutycycle=100%:0:0
Gilvous etc. is shown as when 100%:100%:0.It is described obtain a certain color change minimum unit can be it is ongoing,
The color change minimum unit of its next color is obtained after obtaining the color change minimum unit of a certain color to make micro- place
The continual duty ratio for obtaining the different corresponding three kinds of Color Channels of red, green, blue of color change minimum unit of device is managed, and
The constantly value of R, G, B of output different colours variation minimum unit, when the value of R, G, B of color of object are consecutive variations value,
And the value of different R, G, B are constantly exported under the interval time for being less than resolution of eye, since the persistence of vision of human eye acts on,
User can obtain the light mixing of a dynamic fade.In practical applications, output pwm signal, and according to the PWM duty cycle point
Value R_value, G_value and the B_value for not controlling the light emitting diode RGB are not limited to mode described above, this
Application embodiment is not especially limited this.
In the embodiment of the present application, additionally it is possible to arbitrarily choose two kinds of colors in full color wheel and carry out gradual change and circulation gradual change.
Specifically, Fig. 2 and Fig. 3 are referred to, the method that two kinds of colors progress gradual changes and circulation gradual change should be arbitrarily chosen in full color wheel can
To include but is not limited to following steps:
Step 130: the full color wheel being subjected to equal proportion region division, and the ratio such as obtain the light-emitting diode full color wheel
The region quantity for the color change that example divides；
Natural number sequence is pressed in clockwise and counterclockwise directions in the region for the color change that the full color wheel equal proportion divides
Number is zone number 1 to N, and the zone number meets following relationship: N=N1, wherein N1 indicates that full color wheel equal proportion is drawn
The region quantity for the color change divided.
" region for the color change that full color wheel equal proportion divides " is suitable by natural number in clockwise and counterclockwise directions
Sequence number is zone number 1 to N, and the zone number meets following relationship: N=N1, N1 are " the full color wheel equal proportion
The region quantity of the color change of division ".
In the embodiment of the present application, the full color wheel includes all natural lights, the area that the full color wheel equal proportion divides
Domain is N1, and an optional natural light is marked as regional code 1, then clockwise or counterclockwise with certainly on the basis of this natural light
So number sequence label is to N, and the regional code N is close to the regional code 1 and in the opposite of 1 Sort Direction of regional code
Direction.The Sort Direction is the direction that the practical progressive formation passes through.
Specifically, for example, when the full color wheel equal proportion is divided into N1=24, selecting any natural light number is 1, suitable
Clockwise is encoded to N=24, and the clockwise direction is the direction that the practical progressive formation passes through.In practical application
In, described N1, N and the Sort Direction can be set as needed, and the embodiment of the present application is not especially limited this.
Specifically, in the embodiment of the present application, it can be set according to the quantity of color of object selectable in full color wheel
" region quantity for the color change that full color wheel equal proportion divides ", can be according to need in the speed and progressive formation that gradual change needs
Want the richness of the color of gradual change and the minimum unit value of fluency selection RGB color variation.For example, the face that setting can select
Color is red, blue, green three kinds of colors, and setting red area is divided into three units, is green red (second of green to red respectively
Intermediate color), three units of pure red and reddish blue the first intermediate color of blue (red to), user selected by red gradual change
To blue, then being gradient to blue by red and be gradient to green again to eventually pass back to initial red is a gradual period, the full color wheel
The region quantity for the color change that equal proportion divides is 3*3, and the region that practical progressive formation passes through is red and blue, therefore
The region quantity that practical progressive formation passes through is 2*3, and above-mentioned green red, pure red rgb value corresponding with reddish blue is
The minimum unit value of the RGB color variation of Light-Emitting Diode.In practical applications, the quantity in the region that the equal proportion divides and
Quantity and color of the minimum unit that color, each region division change at RGB color etc. are not limited to described above several
Color and quantity, the embodiment of the present application are not especially limited this.
Step 140: starting color and end color when determining light emitting diode variation in full color wheel, and obtain
The starting color and the corresponding zone number of end color of practical progressive formation；
The practical progressive formation is described etc. between color to terminating successively to pass through starting color by the zone number
The region of the color change of ratio cut partition.
In the embodiment of the present application, " starting color and end when determining light emitting diode variation in full color wheel
Color " is that two kinds of colors are arbitrarily selected in full color wheel, the starting color and the corresponding value for having its R, G, B of end color.
The starting color and end color are by being set.
Step 150: obtaining the practical progressive formation of the light emitting diode by the quantity in region.
And the region quantity that the practical progressive formation passes through meets following relationship:
When N_start_color=N_end_color, N2=N1；
When N_start_color < N_end_color,
N2=N_end_color-N_start_color；
When N_start_color > N_end_color,
N2=N_end_color+N1-N_start_color；
Wherein, N_start_color indicates that the zone number of starting color, N_end_color indicate to terminate the area of color
Field Number.
In the embodiment of the present application, the starting color and the end color are that above-mentioned full color wheel equal proportion divides region
In the corresponding color in a certain region, there is corresponding above-mentioned zone to encode respectively, the region that practical progressive formation passes through be from
The region that starting color passes through to end color.When the regional code of the starting color of selection and the regional code phase of end color
Meanwhile the practical progressive formation be by starting color, by colour wheel one enclose, return to starting color；When starting color
When regional code is less than the regional code for terminating color, full color wheel is according to the ascending sequence of regional code from starting color
Regional code is gradient to the regional code for terminating color；When the regional code of starting color is greater than the regional code of end color
When, full color wheel is gradient to the regional code for terminating color according to the descending sequence of regional code from starting color.
Specifically, according to above-mentioned relation formula, for example, when the number of regions for the color change for dividing the full color wheel equal proportion
When amount is N1=24, selecting any natural light number is 1, clockwise coding to N=24；When the regional code of starting color
With the regional code N_start_color=N_end_color=7 for terminating color, full color wheel is along pointer direction from regional code 7
The circle of gradual change one returns to regional code 7, the region quantity N2=N1=24 that practical progressive formation passes through；When the region of starting color is compiled
Code is N_start_color=7, when terminating the regional code N_end_color=15 of color, N_start_color < N_end_
Color, the region quantity N2=N_end_color-N_start_color=15-7=8 that practical progressive formation passes through at this time；When
The regional code of starting color is N_start_color=7, when terminating the regional code N_end_color=5 of color, N_
Start_color > N_end_color, the region quantity N2=N_end_color+N1-N_ that practical progressive formation passes through at this time
Start_color=5+24-7=22.In practical applications, the N1, N, the Sort Direction, the starting color and end
Color can be set as needed, and the embodiment of the present application is not especially limited this.
And the transformation period of the practical progressive formation of light emitting diode meets following relationship:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_
Cycle indicates the period of the pwm signal, and (Level)/100 indicates that the value range of brightness degree and Level are 0-100,
Change_value indicates color change minimum unit value, and N2 indicates practical progressive formation by the quantity in region.
" fade time of color change minimum unit ", " period of pwm signal ", " ratio such as full color wheel
The region quantity for the color change that example divides " and " the color change minimum unit value of Light-Emitting Diode " all can be to set
Numerical value.The quantity of region " the practical progressive formation by " is to divide in progressive formation in the full color wheel equal proportion
The quantity in the region that progressive formation passes through in the region quantity of color change, " the color change minimum unit value " are described complete
Equal proportion is carried out again in a certain region in the region quantity for the color change that colour wheel equal proportion divides and is divided into multiple units, each
Unit change value is color change minimum unit value.
In the embodiment of the present application, by above-mentioned relation formula it is found that (color change minimum unit is gradually by adjusting the t
Become the time), the changeable T of the T_cycle (pwm signal period) and the change_value (color change minimum unit value)
(transformation period of the practical progressive formation of light emitting diode), to achieve the purpose that adjust dynamic fade speed, the color becomes
When the fade time for changing minimum unit is required for passing through each minimum unit of above-mentioned RGB color variation in progressive formation
Between.
Specifically, in the embodiment of the present application, it can change by adjusting " the fade time t of color change minimum unit "
The transformation period T of the practical progressive formation of light emitting diode passes through for example, shortening the fade time t of color change minimum unit
Time required for each minimum unit of RGB brightness change shortens, then overall time required for progressive formation shortens, i.e. institute
The transformation period T for stating the practical progressive formation of light emitting diode becomes smaller.In practical applications, the color change minimum unit is gradually
The occurrence for becoming time t can be set as needed, and the embodiment of the present application is not especially limited this.
Specifically, in the embodiment of the present application, it also can change by adjusting " pulse width modulating signal period " luminous
The transformation period T of the practical progressive formation of diode, for example, shortening the color value of the minimum unit of each RGB color variation
The corresponding period for adjusting pulse width modulating signal, then the pulse duration of three kinds of Color Channels of red, green, blue is in each week
Phase equal percentage shortens, the color decreased duration that light mixing obtains, the corresponding each minimum unit changed by RGB color
The required time shortens, so that the transformation period T of the practical progressive formation of the light emitting diode integrally shortens.In practical application
In, it is described adjust the pulse width modulating signal period occurrence can be set as needed, the embodiment of the present application to this not
Make specific limit.
Specifically, in the embodiment of the present application, luminous two also be can change by adjusting " color change minimum unit value "
The transformation period T of the practical progressive formation of pole pipe, for example, the content of the value of tri- kinds of colors of R, G, B is all changed to from 0% respectively
100%, constant interval 25%, that is, assume from pure red: (R, G, B)=(100%, 0%, 0%) changes to gilvous: (R,
G, B)=(100%, 100%, 0%), then the color change minimum unit passed through is needed successively from the pure red gilvous that changes to
Are as follows: (R, G, B)=(100%, 0%, 0%), (R, G, B)=(100%, 25%, 0%), (R, G, B)=(100%, 50%,
0%), (R, G, B)=(100%, 75%, 0%), (R, G, B)=(100%, 100%, 0%).To shortening " light emitting diode
The transformation period T " of practical progressive formation, then can be under the premise of not changing the fade time t of color change minimum unit, will
Color change section is changed to 50%, then needs the color change minimum unit passed through successively from the pure red gilvous that changes to are as follows:
(R, G, B)=(100%, 0%, 0%), (R, G, B)=(100%, 50%, 0%), (R, G, B)=(100%, 100%,
0%), to shorten the transformation period T of whole practical progressive formation indirectly.
Step 160: obtaining the region quantity that actual cycle process is passed through.
The region quantity that the actual cycle process is passed through includes, ascending and descending by the zone number
Sequence successively returns the number of regions for the color change that equal proportion divides between starting color by starting color to end color
Amount；
Or, by the ascending or descending sequence of the zone number successively pass through starting color to terminate color it
Between equal proportion divide color change region quantity.
In the embodiment of the present application, the cyclic process is to be gradient in the practical progressive formation by above-mentioned starting color
Terminating color, the process of starting color is returned in gradual change again, in the process, the first mode as described in above-mentioned steps of the starting color
Gradual change returns to starting color, the progressive formation by end color gradient to terminating color, then with the opposite direction of above-mentioned gradual change
The region quantity of process is twice of the region quantity that above-mentioned progressive formation passes through.
Specifically, for example, the region is compiled when the regional code of starting color is 7, when terminating the regional code 15 of color
Code Sort Direction is along pointer direction, then the cyclic process is first clockwise by 7 gradual change of regional code to regional code 15,
The region quantity 2*8 passed through in a counterclockwise direction by 15 gradual change of regional code to regional code 7, the full color wheel cyclic process again
=16.In practical applications, the N1, N, the Sort Direction, the starting color and end color can carry out as needed
Setting, the embodiment of the present application are not especially limited this.
Wherein, step 130~160 can execute prior to step 110 or later.
Embodiment two
Fig. 4 is a kind of schematic diagram of lumination of light emitting diode control device provided by the embodiments of the present application, refers to Fig. 4,
The lumination of light emitting diode control device 200 includes but is not limited to: obtaining module 210, control module 220 and determining module 230.
Wherein, the color in the brightness degree and full color wheel for obtaining module 210 for obtaining the light emitting diode
Change minimum unit；The module 210 that obtains is also used to obtain the color change that the light-emitting diode full color wheel equal proportion divides
The region quantity of change；The acquisition module 210 is also used to obtain the practical progressive formation of the light emitting diode by the number in region
Amount；The module 210 that obtains is also used to obtain the starting color of practical progressive formation and terminates the corresponding zone number of color；With
And the region quantity for obtaining module 210 and being also used to obtain actual cycle process process.
Wherein, in some embodiments, the transformation period of the practical progressive formation of the light emitting diode meets following relationship
Formula:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_
Cycle indicates the period of the pwm signal, and (Level)/100 indicates that the value range of brightness degree and Level are 0-100, N1
Indicate that the region quantity for the color change that full color wheel equal proportion divides, change_value indicate color change minimum unit value,
N2 indicates practical progressive formation by the quantity in region.
In some embodiments, it presses in clockwise and counterclockwise directions in the region that the practical progressive formation equal proportion divides
Natural number serial number is zone number 1 to N, and the zone number meets following relationship: N=N1；
Practical progressive formation by the ascending sequence of the zone number successively pass through starting color and terminate color it
Between the region that divides of the full color wheel equal proportion.
The region quantity that the practical progressive formation passes through meets following relationship:
When N_start_color=N_end_color, N2=N1；
When N_start_color < N_end_color,
N2=N_end_color-N_start_color；
When N_start_color > N_end_color,
N2=N_end_color+N1-N_start_color；
Wherein, N_start_color indicates that the zone number of starting color, N_end_color indicate to terminate the area of color
Field Number.
Wherein, in some embodiments, the region quantity that the actual cycle process is passed through be by the zone number by
It is small successively to pass through starting color to big and descending sequence and divide to terminating color and return between starting color equal proportion
Color change region quantity.
The control module 220 is used to control the brightness of the light emitting diode, while basis according to the brightness degree
The color change minimum unit adjusts the duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode, with control
The color changing rate of the light emitting diode is made,
Wherein, the color change minimum unit are as follows: produced in full color wheel when a certain color change in tri- kinds of colors of RGB
Raw color change value.
R, the value of tri- kinds of colors of G, B meets following relationship:
R_value=R_dutycycle* (Level)/100,
G_value=G_dutycycle* (Level)/100,
B_value=B_dutycycle* (Level)/100,
Wherein, R_value, G_value, B_value respectively indicate the value of R, G, B after color change, and (Level)/
100 indicate that the value range of brightness degree and Level are 0-100, and R_dutycycle, G_dutycycle, B_dutycycle divide
Not Biao Shi R, G, B PWM duty cycle.
Starting color and end when the determining module 230 is used to determine light emitting diode variation in full color wheel
Color.
In embodiments herein, the face in the brightness degree and full color wheel of the acquisition light emitting diode of module 210 is obtained
After color change minimum unit, the control module 220 controls the brightness of the light emitting diode according to the brightness degree, simultaneously
The duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode is adjusted according to the color change minimum unit,
To control the color changing rate of the light emitting diode, the brightness for obtaining module 210 and constantly obtaining next color of object
Grade and color change minimum unit, the control module 220 constantly export the corresponding pwm signal of color of object therewith, obtain
Continually changing light, and when the value of the light emitting diode RGB is successive value, obtain the lighting effects of a gradual change.
When needing to choose two color of objects as starting color and end color, the acquisition module 210 obtains reality
The starting color and the corresponding zone number of end color, the control module 220 of border progressive formation are suitable by the regional code
The direction of sequence constantly exports correspondence pwm signal of the progressive formation by region corresponding color, thus make light from starting color gradually
Fade to end color.
When needing to carry out circulation gradual change, the module 210 that obtains obtains the region quantity that actual cycle process is passed through, institute
It states control module 220 and first constantly exports gradual change from starting color to end color by the direction of the regional code sequence
Correspondence pwm signal of the journey by region corresponding color, the opposite direction by the regional code sequence from terminate color to
Correspondence pwm signal of the progressive formation by region corresponding color is constantly exported between beginning color, to reach light from starting face
Color be gradient to terminate color again gradual change return starting color a cyclic process.
It should also be noted that, due to luminous two in lumination of light emitting diode control device and above method embodiment one
Pole tube light-emitting control method is based on identical inventive concept, and therefore, the corresponding contents of above method embodiment one are equally applicable to
Present apparatus embodiment, and will not be described here in detail.
According to the above-mentioned technical solution, the beneficial effect of the embodiment of the present application is: the embodiment of the present application can lead to
Cross the color change minimum unit obtained in RGB brightness degree and full color wheel, output pwm signal and according to the PWM duty cycle
The value of described light emitting diode R, G, B are controlled, respectively come while achieving the purpose that light modulation, additionally it is possible to by adjusting in full color wheel
Color change minimum unit carry out dynamic regulation Fade rate, additionally it is possible to choose the color in any two kinds of full color wheels and followed
Ring progressive formation.
Embodiment three
Fig. 5 is a kind of structural schematic diagram of color lamp provided by the embodiments of the present application, which can be any can be achieved
Various colors and the RGB color lamp for receiving pwm signal, for example, LED light tape, LED rotary festoon lamp etc., are able to carry out the application reality
The lumination of light emitting diode control method of example offer is provided.
Specifically, Fig. 5 is referred to, which includes: light emitting diode 310；And described luminous two can be controlled
The luminous microcontroller 320 of pole pipe 310, Fig. 5 is by taking microcontroller 320 and light emitting diode 310 are electrically connected as an example.
The light emitting diode 310 is one or more, and it is logical that the light emitting diode 310 can receive tri- kinds of colors of R, G, B
The pulse signal in road, to issue R, G, B light mixing of different brightness with the pace of change of setting, the light emitting diode 310 is
When multiple, identical pwm signal can receive, also can receive different pwm signals.
The microcontroller 320 is a microcomputer, for setting various parameters and obtaining various parameters and defeated
Corresponding pwm signal issues the light of different colours to control light emitting diode 310 with different paces of change out.Such as the application
The corresponding module of lumination of light emitting diode control method in embodiment, for example, acquisition module 210, control module described in Fig. 4
220 and determining module 230.The microcontroller 320 is by obtaining the parameter of system or artificial settings in modules, packet
Include but be not limited to the RGB brightness degree of Light-Emitting Diode 310, the color change minimum unit value of Light-Emitting Diode 310, luminous two
The fade time of 310 color change minimum unit of pole pipe, the period of the pwm signal of Light-Emitting Diode 310, Light-Emitting Diode 310
Full color wheel equal proportion divide the region quantity of color change, Light-Emitting Diode 310 practical progressive formation by region
Quantity, Light-Emitting Diode 310 progressive formation starting color and terminate the corresponding zone number of color, Light-Emitting Diode 310
Cyclic process pass through region quantity；Calculate the practical gradual change by the confirmable Light-Emitting Diode 310 of these setup parameters
The transformation period of journey；To control 320 output pwm signal of microcontroller, wherein the duty ratio of pwm signal controls institute respectively
The value of R, G, B of light emitting diode 310 are stated, to control the color changing rate of the light emitting diode.Thereby executing luminous two
The various function application and data processing of pole tube light-emitting control device, i.e. the light emitting diode hair of realization above method embodiment
Light control method.
The embodiment of the present application also provides a kind of storage medium, the storage medium is stored with executable instruction, this can hold
Row instruction be executed by one or more processors, such as: executed by the microcontroller 320 in Fig. 5, may make said one or
Multiple processors execute the lumination of light emitting diode control method in above-mentioned any means embodiment, for example, executing above description
Fig. 1 in method and step 110 to 130, the method and step 140 to 160 in Fig. 2 realizes the function of the module 210 to 230 in Fig. 5
Energy.
The apparatus embodiments described above are merely exemplary, wherein the Light-Emitting Diode 310 and miniature control
Device 320 can be one or more, and the Light-Emitting Diode as illustrated by the separation member 310 and microcontroller 320 can be with
It is or may not be installation one, Light-Emitting Diode 310 and microcontroller 320 can directly uses port or pin
Etc. being integrally connected, can also remotely be connected by electrical or signal, it can it is in one place, or may be distributed over not
With in the localities.The some or all of the modules therein of microcontroller 320 can be selected to realize this reality according to the actual needs
Apply the purpose of a scheme.
Through the above description of the embodiments, those of ordinary skill in the art can be understood that each embodiment
It can be realized in such a way that software adds general hardware platform, naturally it is also possible to pass through hardware.Those of ordinary skill in the art
It is understood that realize above-described embodiment method in all or part of the process be can be instructed by computer program it is relevant
Hardware is completed, and the program can be stored in a non-transient computer read/write memory medium, which when being executed, can
The process of embodiment including such as above-mentioned each method.Wherein, described instruction is stored in microcontroller, can be all kinds of microcomputers
Calculation machine.
Method provided by the embodiment of the present application can be performed in the said goods, has the corresponding functional module of execution method and has
Beneficial effect.The not technical detail of detailed description in the embodiment of the present application, reference can be made to method provided by the embodiment of the present application.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
Under the thinking of invention, it can also be combined between the technical characteristic in above embodiments or different embodiments, and exist such as
Many other variations of the upper different aspect of the invention, for simplicity, they are not provided in details；Although reference
Invention is explained in detail for previous embodiment, those skilled in the art should understand that: it still can be right
Technical solution documented by foregoing embodiments is modified, or is equivalently replaced to wherein regional development and technology feature；And this
It modifies or replaces, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of lumination of light emitting diode control method, which is characterized in that the described method comprises the following steps:
Obtain the color change minimum unit in the brightness degree and full color wheel of the light emitting diode；
The brightness of the light emitting diode is controlled according to the brightness degree, while being adjusted according to the color change minimum unit
For controlling the duty ratio of the pwm signal of tri- kinds of colors of RGB in light emitting diode, become with controlling the color of the light emitting diode
Change speed,
Wherein, the color change minimum unit are as follows: generated in full color wheel when a certain color change in tri- kinds of colors of RGB
Color change value.
2. the method according to claim 1, wherein the method also includes: the full color wheel such as is subjected at the ratio
Example region division, and obtain the region quantity for the color change that the light-emitting diode full color wheel equal proportion divides；
Natural number serial number is pressed in clockwise and counterclockwise directions in the region for the color change that the full color wheel equal proportion divides
For zone number 1 to N, the zone number meets following relationship: N=N1, wherein N1 indicates what full color wheel equal proportion divided
The region quantity of color change.
3. according to the method described in claim 2, it is characterized in that, the method also includes: determine that the light emitting diode becomes
Starting color and end color when change in full color wheel, and obtain the starting color of practical progressive formation and terminate color and correspond to
Zone number；
The practical progressive formation is successively to pass through starting color by the zone number to the equal proportion between end color
The region of the color change of division.
4. according to the method described in claim 3, it is characterized in that, the method also includes: it is real to obtain the light emitting diode
Border progressive formation by region quantity；
And the transformation period of the practical progressive formation of light emitting diode meets following relationship:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_cycle
Indicate the period of the pwm signal, (Level)/100 indicates that the value range of brightness degree and Level are 0-100, change_
Value indicates color change minimum unit value, and N2 indicates practical progressive formation by the quantity in region.
5. according to the method described in claim 3, it is characterized in that, the method also includes: obtain actual cycle process pass through
Region quantity；
The region quantity that the actual cycle process is passed through includes, by the sequence that the zone number is ascending and descending
The region quantity for the color change that equal proportion divides between starting color is successively returned to end color by starting color；
Or, successively passing through starting color between end color etc. by the ascending or descending sequence of the zone number
The region quantity of the color change of ratio cut partition.
6. a kind of lumination of light emitting diode control device, which is characterized in that described device includes:
Obtain module, the color change minimum unit in brightness degree and full color wheel for obtaining the light emitting diode；
Control module becomes for controlling the brightness of the light emitting diode according to the brightness degree, while according to the color
Change minimum unit and adjust the duty ratio for controlling the pwm signal of tri- kinds of colors of RGB in light emitting diode, to control described shine
The color changing rate of diode,
Wherein, the color change minimum unit are as follows: generated in full color wheel when a certain color change in tri- kinds of colors of RGB
Color change value.
7. device according to claim 6, which is characterized in that
The acquisition module is also used to: being obtained after the full color wheel is carried out equal proportion region division, the light emitting diode is complete
The region quantity for the color change that colour wheel equal proportion divides；
Natural number serial number is pressed in clockwise and counterclockwise directions in the region for the color change that the full color wheel equal proportion divides
For zone number 1 to N, the zone number meets following relationship: N=N1, wherein N1 indicates what full color wheel equal proportion divided
The region quantity of color change.
8. device according to claim 7, which is characterized in that described device further include:
Determining module, the determining module are used for: when determining the light emitting diode variation starting color in full color wheel and
Terminate color；
The module that obtains is also used to: being obtained the starting color of practical progressive formation and is terminated the corresponding zone number of color；
The practical progressive formation is successively to pass through starting color by the zone number to the equal proportion between end color
The region of the color change of division；
The acquisition module is also used to: obtaining the practical progressive formation of the light emitting diode by the quantity in region；
And the transformation period of the practical progressive formation of light emitting diode meets following relationship:
T=((T_cycle* (Level)/100)/(N1/6))/change_value*t*N2,
Wherein, t indicates that the fade time of color change minimum unit, T indicate the transformation period of practical progressive formation, T_cycle
Indicate the period of the pwm signal, (Level)/100 indicates that the value range of brightness degree and Level are 0-100, change_
Value indicates color change minimum unit value, and N2 indicates practical progressive formation by the quantity in region.
9. device according to claim 8, which is characterized in that
The module that obtains is also used to: obtaining the region quantity that actual cycle process is passed through；
The region quantity that the actual cycle process is passed through includes, by the sequence that the zone number is ascending and descending
The region quantity for the color change that equal proportion divides between starting color is successively returned to end color by starting color；
Or, successively passing through starting color between end color etc. by the ascending or descending sequence of the zone number
The region quantity of the color change of ratio cut partition.
10. a kind of color lamp characterized by comprising
Light emitting diode；And
The microcontroller of the lumination of light emitting diode can be controlled；Wherein,
The microcontroller is for executing as described in any one in claim 1-5 when controlling the lumination of light emitting diode
Lumination of light emitting diode control method.
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