CN108184285A - Feux rouges compensation method, device and RGB lamps based on RGB lamps - Google Patents
Feux rouges compensation method, device and RGB lamps based on RGB lamps Download PDFInfo
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- CN108184285A CN108184285A CN201711375453.2A CN201711375453A CN108184285A CN 108184285 A CN108184285 A CN 108184285A CN 201711375453 A CN201711375453 A CN 201711375453A CN 108184285 A CN108184285 A CN 108184285A
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- H05B45/28—Controlling the colour of the light using temperature feedback
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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]
- H05B45/40—Details of LED load circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The present invention provides a kind of feux rouges compensation method based on RGB lamps, device and RGB lamps, this method and includes：Obtain the RGB light temperature information that thermistor detects；According to the linear relationship between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor, feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information is determined；According to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information, PWM count values are determined；According to PWM count values, the red light output control electric current into RGB lamps.With the temperature change of RGB lamps, the compensation deals of brightness are carried out to the red light in RGB lamps in real time, and then the brightness by changing red light, to realize that the overall brightness of control RGB lamps and color are stable, avoid user using during RGB lamps because the brightness change of RGB lamps and caused by user sense of discomfort.
Description
Technical field
The present invention relates to lighting technical field more particularly to a kind of feux rouges compensation method, device and RGB based on RGB lamps
Lamp.
Background technology
With the development of science and technology, light emitting diode (Light Emitting Diode, abbreviation LED) light source is because of tool
There is long lifespan, light efficiency is high, the characteristics such as low in energy consumption, obtained extensive use.Wherein, the RGB (Red in LED light source
Green Blue, abbreviation RGB) lamp, due to characteristics such as adjustable color, various colors, also it is widely used.
In the prior art, RGB lamps are made of red light, green light and blue lamp, for example, having multiple red lights two in RGB lamps
Pole pipe, multiple green light diodes and multiple blue lamp diodes.Wherein, feux rouges is one of three primary colours important in RGB lamps；RGB
The colour temperature and color of lamp are required for realizing by mixing feux rouges, green light, blue light proportioning.
However in the prior art, in the course of work of RGB lamps, with the continuous work of RGB lamps, the temperature meeting of RGB lamps
Variation, i.e., temperature can increase；At this point, the relative root mean square error of the red light in RGB lamps, as the transformation of temperature will appear apparent line
Property attenuation, after the relative root mean square error attenuation of red light, the brightness of red light will appear apparent variation, and due to the color of RGB lamps
Temperature and color need feux rouges, green light, blue light proportioning to realize, and then the colour temperature of RGB lamps and color can be caused to will appear significantly
Variation.So as to which the colour temperature of RGB lamps and color can be caused unstable, user can be caused not during user uses RGB lamps
It adapts to.
Invention content
The present invention provides a kind of feux rouges compensation method based on RGB lamps, device and RGB lamps, to solve the colour temperature of RGB lamps
And color is unstable, unconformable problem can be caused to user during user uses RGB lamps.
On the one hand, the present invention provides a kind of feux rouges compensation method based on RGB lamps, including：
Obtain the RGB light temperature information that thermistor detects；
According to the linear relationship between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor, determining and institute
State the corresponding feux rouges PWM duty cycle compensating factor of RGB light temperature information；
According to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information, PWM count values are determined；
According to the PWM count values, the red light output control electric current into the RGB lamps.
Further, basis feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information determines
PWM count values, including：
Obtain the red light luminance information in the RGB lamps；
Believed according to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information and the red light brightness
Breath, determines the PWM count values.
Further, the PWM count values are Dutytemp=Dutymax*F*level/255；
Wherein, DutymaxRepresent the maximum count value of the red light PWM counters in the RGB lamps, F represents the feux rouges
PWM duty cycle compensating factor, level represent the red light luminance information.
Further, the maximum count value is the RGB lamps temperature is 100 DEG C, the PWM duty cycle of the red light is
Under conditions of 100%, the count value of the red light PWM counters.
Further, the linear relationship is F=0.0053*t+0.4667；
Wherein, F represents the feux rouges PWM duty cycle compensating factor, and t represents the RGB light temperatures information.
Further, according to the PWM count values, the red light output control electric current into the RGB lamps, including：
According to the PWM count values, calculate the PWM duty cycle of the driving control signal of the red light, and generate with it is described
The corresponding driving control signal of PWM duty cycle；
According to the corresponding driving control signal of the PWM duty cycle, to the red light output current.
Another aspect, the present invention provide a kind of feux rouges compensation device based on RGB lamps, including：
First acquisition module, for obtaining the RGB light temperature information that thermistor detects；
First determining module, for according between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor
Linear relationship determines feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information；
Second determining module, for according to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information,
Determine PWM count values；
Output module, for according to the PWM count values, the red light output into the RGB lamps to control electric current.
Further, second determining module, including：
Acquisition submodule, for obtaining the red light luminance information in the RGB lamps；
Determination sub-module, for according to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information, with
And the red light luminance information, determine the PWM count values.
Further, the PWM count values are Dutytemp=Dutymax*F*level/255；
Wherein, DutymaxRepresent the maximum count value of the red light PWM counters in the RGB lamps, F represents the feux rouges
PWM duty cycle compensating factor, level represent the red light luminance information.
Further, the maximum count value is the RGB lamps temperature is 100 DEG C, the PWM duty cycle of the red light is
Under conditions of 100%, the count value of the red light PWM counters.
Further, the linear relationship is F=0.0053*t+0.4667；
Wherein, F represents the feux rouges PWM duty cycle compensating factor, and t represents the RGB light temperatures information.
Further, the output module, including：
Submodule is generated, for according to the PWM count values, calculating the PWM duties of the driving control signal of the red light
Than, and generate driving control signal corresponding with the PWM duty cycle；
Output sub-module, for according to the corresponding driving control signal of the PWM duty cycle, electricity to be exported to the red light
Stream.
On the other hand, the present invention provides a kind of RGB lamps, including：Processor, at least one red light, at least one green light, extremely
A few blue lamp and thermistor；
The processor respectively with each red light at least one red light, each at least one green light
Each blue lamp connection in green light, at least one blue lamp；
The processor is connect with the thermistor；
The thermistor, for detecting the RGB light temperature information of the RGB lamps；
The processor, for performing as above feux rouges compensation method of any one of them based on RGB lamps.
Feux rouges compensation method provided by the invention based on RGB lamps, device and RGB lamps are detected by obtaining thermistor
The RGB light temperature information arrived；According to the linear pass between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor
System determines feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information；According to corresponding red with RGB light temperature information
Light PWM duty cycle compensating factor, determines PWM count values；According to PWM count values, the red light output control electric current into RGB lamps.
So as to by obtaining the temperature values of RGB lamps in real time, calculate in real time feux rouges PWM duty cycle compensation corresponding with temperature value because
Son, and then can the PWM count values of red light be calculated, according to the PWM count values pair according to feux rouges PWM duty cycle compensating factor
Red light carries out current control；And then a kind of feux rouges compensation method based on RGB lamps is provided, in the course of work of RGB lamps, with
The temperature change of RGB lamps, carries out the compensation deals of brightness to the red light in RGB lamps in real time, and then by changing red light
Brightness, to realize that the overall brightness of control RGB lamps and color are stable, avoid user using during RGB lamps because
The brightness change of RGB lamps and caused by user sense of discomfort.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and for explaining the principle of the disclosure together with specification.
Fig. 1 be this application involves RGB lamps in relative root mean square error attenuation change figure；
Fig. 2 is a kind of flow diagram of the feux rouges compensation method based on RGB lamps provided by the embodiments of the present application；
Fig. 3 be a kind of feux rouges compensation method based on RGB lamps provided by the embodiments of the present application in RGB light temperatures information with
The schematic diagram of linear relationship between feux rouges PWM duty cycle compensating factor；
Fig. 4 is the flow diagram of another feux rouges compensation method based on RGB lamps provided by the embodiments of the present application；
Fig. 5 is a kind of structure diagram of the feux rouges compensation device based on RGB lamps provided in an embodiment of the present invention；
Fig. 6 is the structure diagram of another feux rouges compensation device based on RGB lamps provided in an embodiment of the present invention；
Fig. 7 is a kind of circuit diagram of RGB lamps provided in an embodiment of the present invention.
Pass through above-mentioned attached drawing, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings
The range for limiting the disclosure by any mode and conceiving is not intended to word description, but is by reference to specific embodiment
Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Noun according to the present invention is explained first：
RGB lamps：RGB lamps in the application refer to RGB light emitting diodes (Light Emitting Diode, abbreviation
LED) lamp, RGB lamps are with the common intersection imaging of three primary colors, obtain white light.
Pulse width modulates (Pulse Width Modulation, abbreviation PWM)：It is the numeral output using microprocessor
Come a kind of very effective technology controlled analog circuit, it is widely used in from measurement, communicates to power control with becoming
In many fields changed.
Specific application scenarios of the invention are as follows.Fig. 1 be this application involves RGB lamps in relative root mean square error attenuation change
Figure, as shown in Figure 1, in the course of work of RGB lamps, with the continuous work of RGB lamps, the temperature of RGB lamps can change, i.e. temperature
It can increase；At this point, the relative root mean square error (Relative Light Output) of the red light, blue lamp, green light in RGB lamps, with temperature
The transformation of degree will appear linear attenuation, and straight line 1 refers to the relative root mean square error of red light in Fig. 1, and straight line 2 refers to the phase of green light
To light output, straight line 3 refers to the relative root mean square error of blue lamp；Wherein, relative root mean square error is represented with percentage (%), in Fig. 1
Middle abscissa is the temperature (Temperature) of RGB lamps, and the unit of temperature is degree Celsius (DEG C), and ordinate is relative root mean square error；
From figure 1 it appears that the relative root mean square error of the red light in RGB lamps, as the transformation of temperature will appear apparent linear attenuation.
After the relative root mean square error attenuation of red light, the brightness of red light will appear apparent variation, in turn result in the colour temperature and face of RGB lamps
Color will appear apparent variation.
Feux rouges compensation method provided by the invention based on RGB lamps, device and RGB lamps, it is intended to solve the prior art as
Upper technical problem.
How the technical solution of technical scheme of the present invention and the application is solved with specifically embodiment below above-mentioned
Technical problem is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.Below in conjunction with attached drawing, the embodiment of the present invention is described.
Fig. 2 is a kind of flow diagram of the feux rouges compensation method based on RGB lamps provided by the embodiments of the present application.Such as Fig. 2
Shown, this method includes：
Step 101 obtains the RGB light temperature information that thermistor detects.
In the present embodiment, specifically, the executive agent of the present embodiment can be the processor (Central of RGB lamps
Processing Unit, abbreviation CPU) or other devices that can perform the present embodiment method.The present embodiment with
Executive agent is illustrated for the processor of RGB lamps.
One thermistor is set in RGB lamps, it is preferred that thermistor is negative temperature coefficient (Negative
Temperature Coefficient, abbreviation NTC) thermistor；The processor of thermistor and RGB lamps is electrically connected.
In the course of work of RGB lamps, the temperature information of RGB lamps that thermistor detects, the temperature information is properly termed as RGB lamp temperature
Spend information；Processor can get the RGB light temperature information that thermistor detects.
Step 102, according to the linear relationship between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor,
Determine feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information.
In a kind of optional embodiment, linear relationship F=0.0053*t+0.4667；Wherein, F represents feux rouges PWM
Duty ratio compensating factor, t represent RGB light temperature information.
In the present embodiment, specifically, pre-set the compensation of RGB light temperatures information and feux rouges PWM duty cycle because
Linear relationship between son, Fig. 3 are the RGB lamps in a kind of feux rouges compensation method based on RGB lamps provided by the embodiments of the present application
The schematic diagram of linear relationship between temperature information and feux rouges PWM duty cycle compensating factor, as shown in figure 3, abscissa is RGB lamps
Temperature information t, unit DEG C；Ordinate is feux rouges PWM duty cycle compensating factor F；Linear relationship in Fig. 3 is F=0.0053*t+
0.4667.And then processor utilizes above-mentioned linear relationship after the temperature value that RGB light temperature information is characterized is got
Formula is calculated, can then calculate with corresponding to current RGB light temperature information feux rouges PWM duty cycle compensation because
Son.
Step 103, basis feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information, determine PWM count values.
In the present embodiment, specifically, processor is calculated using the feux rouges PWM duty cycle compensating factor calculated,
A PWM count value can be calculated.Specifically, be already configured in processor different feux rouges PWM duty cycle compensation because
The sub correspondence between different PWM count values, and then processor can be determined and calculate according to the correspondence
Feux rouges PWM duty cycle compensating factor corresponding to PWM count values.
Step 104, according to PWM count values, the red light output control electric current into RGB lamps.
In the present embodiment, specifically, the computational methods meter of the prior art may be used according to PWM count values in processor
Calculation obtains the feux rouges driving control signal PWM duty cycle of red light, and exports feux rouges drive control letter corresponding with the duty ratio
Number PWM；Processor controls the electric current inputted in the red light into RGB lamps according to feux rouges driving control signal PWM, and then goes to control
The brightness of red light, to carry out feux rouges compensation.
The present embodiment is by obtaining the RGB light temperature information that thermistor detects；According to preset RGB light temperatures information
With the linear relationship between feux rouges PWM duty cycle compensating factor, feux rouges PWM duty cycle corresponding with RGB light temperature information is determined
Compensating factor；According to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information, PWM count values are determined；According to PWM
Count value, the red light output control electric current into RGB lamps.So as to the temperature value by obtaining RGB lamps in real time, calculate in real time
Go out feux rouges PWM duty cycle compensating factor corresponding with temperature value, and then can be calculated according to feux rouges PWM duty cycle compensating factor
Go out the PWM count values of red light, current control is carried out to red light according to the PWM count values；And then it provides a kind of based on RGB lamps
Feux rouges compensation method, in the course of work of RGB lamps, with the temperature change of RGB lamps, in real time to the red light in RGB lamps into
The compensation deals of row brightness, and then the brightness by changing red light, to realize that the overall brightness of control RGB lamps and color are stable
, avoid user using during RGB lamps because the brightness change of RGB lamps and caused by user sense of discomfort.
Fig. 4 is the flow diagram of another feux rouges compensation method based on RGB lamps provided by the embodiments of the present application.Such as figure
Shown in 4, this method includes：
Step 201 obtains the RGB light temperature information that thermistor detects.
In the present embodiment, specifically, the executive agent of the present embodiment can be RGB lamps processor or other can
To perform the device of the present embodiment method.Processor of the present embodiment using executive agent as RGB lamps illustrates.
This step may refer to the step 101 of Fig. 2, repeat no more.
Step 202, according to the linear relationship between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor,
Determine feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information.
In the present embodiment, it specifically, this step may refer to the step 102 of Fig. 2, repeats no more.
Red light luminance information in step 203, acquisition RGB lamps.
In the present embodiment, specifically, in the course of work of RGB lamps, the processor of RGB lamps can record in real time
The luminance information of the luminance information of red light in RGB lamps, the luminance information of green light and blue lamp.So as to which processor can obtain
The red light luminance information of red light in current RGB lamps, red light luminance information level is a red light brightness value level.
For example, a range { 0~255 } delimited for the brightness value of red light in RGB lamps, so as to the when red of RGB lamps
Angle value level values from the range.
Step 204 is believed according to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information and red light brightness
Breath, determines PWM count values.
In a kind of optional embodiment, the PWM count values in step 204 are Dutytemp=Dutymax*F*level/
255；Wherein, DutymaxRepresent the maximum count value of the red light PWM counters in RGB lamps, F represents the compensation of feux rouges PWM duty cycle
The factor, level represent red light luminance information.
In a kind of optional embodiment, maximum count value be RGB lamps temperature be 100 DEG C, the PWM duty cycle of red light
Under conditions of 100%, the count value of red light PWM counters.
In the present embodiment, specifically, being 100 DEG C and the driving control signal of RGB lamps in the temperature of RGB lamps first
PWM duty cycle be 100% when, it may be determined that the count value of the PWM counters of red light be a maximum count value Dutymax.Example
Such as, maximum count value DutymaxIt is 100.
So as to the feux rouges PWM duty cycle compensating factor F and step 203 that processor can will calculate in step 202
In red light brightness information representation brightness value level, be updated to formula Dutytemp=Dutymax* in F*level/255, into
And it obtains under the temperature value of current RGB light temperatures information representation, the PWM count values Duty of the PWM counters of red lighttemp。
Step 205, according to PWM count values, calculate the PWM duty cycle of the driving control signal of red light, and generate and accounted for PWM
Sky is than corresponding driving control signal.
In the present embodiment, specifically, processor is according to the PWM count values calculated in step 204, using the prior art
Duty ratio calculation method, the PWM duty cycle of the driving control signal of red light can be calculated.
Then, processor can generate driving control signal corresponding with the PWM duty cycle calculated.
Step 206, according to the corresponding driving control signal of PWM duty cycle, to red light output current.
In the present embodiment, specifically, processor can be controlled according to the driving control signal generated in step 205
The current value of the electric current exported to red light；And then processor by the corresponding current transmission of the current value to the red light in RGB lamps,
So as to adjust the brightness of red light.
In above process, the temperature range of RGB lamps during the work time is generally at 25 DEG C~100 DEG C, using this implementation
The method of example, can calculate PWM count values at each temperature in real time, and then in the temperature model in the temperature range
It encloses lower to feux rouges progress gamut compensation.
It can be determined from the straight line 1 of Fig. 1 when RGB lamps are operated in 25 DEG C, i.e. the RGB light temperature information of RGB lamps
The temperature for characterizing RGB lamps is 25 DEG C, at this point, the PWM duty cycle of the driving control signal of red light is 60%, i.e. this time of red light
The lumen of output i.e. feux rouges maximum lumen Lum_max；When RGB lamps are operated in 100 DEG C, i.e. the RGB lamp temperature of RGB lamps
The temperature for spending information representation RGB lamps is 100 DEG C, and due to the influence of temperature, the lumen of the light output of red light has apparent attenuation,
Lumen can be less than Lum_max, so as to need to carry out feux rouges compensation；The method provided through this embodiment, it is ensured that RGB lamps exist
At any temperature in 25 DEG C~100 DEG C of temperature range, the lumen of the light output of red light is all Lum_max.
The present embodiment is by obtaining the RGB light temperature information that thermistor detects；According to preset RGB light temperatures information
With the linear relationship between feux rouges PWM duty cycle compensating factor, feux rouges PWM duty cycle corresponding with RGB light temperature information is determined
Compensating factor；Obtain the red light luminance information in RGB lamps；It is compensated according to feux rouges PWM duty cycle corresponding with RGB light temperature information
The factor and red light luminance information, determine PWM count values；According to PWM count values, the red light output control electricity into RGB lamps
Stream.So as to the temperature value by obtaining RGB lamps in real time, feux rouges PWM duty cycle corresponding with temperature value is calculated in real time and is mended
The factor is repaid, and then can red light be calculated according to the red light luminance information in feux rouges PWM duty cycle compensating factor and RGB lamps
PWM count values, according to the PWM count values to red light carry out current control；And then it provides a kind of feux rouges based on RGB lamps and mends
Compensation method in the course of work of RGB lamps, with the temperature change of RGB lamps, carries out brightness to the red light in RGB lamps in real time
Compensation deals, and then the brightness by changing red light to realize that the overall brightness of control RGB lamps and color are stable, keeps away
Exempted from user using during RGB lamps because the brightness change of RGB lamps and caused by user sense of discomfort.
Fig. 5 be a kind of structure diagram of the feux rouges compensation device based on RGB lamps provided in an embodiment of the present invention, such as Fig. 5
Shown, the device of the present embodiment can include：
First acquisition module 51, for obtaining the RGB light temperature information that thermistor detects；
First determining module 52, for according between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor
Linear relationship, determine feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information；
Second determining module 53, for according to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information, really
Determine PWM count values；
Output module 54, for according to PWM count values, the red light output into RGB lamps to control electric current.
The feux rouges compensation device based on RGB lamps of the present embodiment can perform provided in an embodiment of the present invention a kind of based on RGB
The feux rouges compensation method of lamp, realization principle is similar, and details are not described herein again.
The present embodiment is by obtaining the RGB light temperature information that thermistor detects；According to preset RGB light temperatures information
With the linear relationship between feux rouges PWM duty cycle compensating factor, feux rouges PWM duty cycle corresponding with RGB light temperature information is determined
Compensating factor；According to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information, PWM count values are determined；According to PWM
Count value, the red light output control electric current into RGB lamps.So as to the temperature value by obtaining RGB lamps in real time, calculate in real time
Go out feux rouges PWM duty cycle compensating factor corresponding with temperature value, and then can be calculated according to feux rouges PWM duty cycle compensating factor
Go out the PWM count values of red light, current control is carried out to red light according to the PWM count values；And then it provides a kind of based on RGB lamps
Feux rouges compensation device, in the course of work of RGB lamps, with the temperature change of RGB lamps, in real time to the red light in RGB lamps into
The compensation deals of row brightness, and then the brightness by changing red light, to realize that the overall brightness of control RGB lamps and color are stable
, avoid user using during RGB lamps because the brightness change of RGB lamps and caused by user sense of discomfort.
Fig. 6 is the structure diagram of another feux rouges compensation device based on RGB lamps provided in an embodiment of the present invention, is being schemed
On the basis of 5 illustrated embodiments, as shown in fig. 6, the second determining module 53, including：
Acquisition submodule 531, for obtaining the red light luminance information in RGB lamps；
Determination sub-module 532, for according to feux rouges PWM duty cycle compensating factor corresponding with RGB light temperature information and
Red light luminance information determines PWM count values.
PWM count values are Dutytemp=Dutymax*F*level/255；Wherein, DutymaxRepresent the red light in RGB lamps
The maximum count value of PWM counters, F represent feux rouges PWM duty cycle compensating factor, and level represents red light luminance information.
Maximum count value be RGB lamps under conditions of temperature is 100 DEG C, the PWM duty cycle of red light is 100%, red light PWM
The count value of counter.
Linear relationship is F=0.0053*t+0.4667；Wherein, F represents feux rouges PWM duty cycle compensating factor, and t represents RGB
Light temperature information.
Output module 54, including：
Submodule 541 is generated, for according to PWM count values, calculating the PWM duty cycle of the driving control signal of red light, and
Generation driving control signal corresponding with PWM duty cycle；
Output sub-module 542, for according to the corresponding driving control signal of PWM duty cycle, to red light output current.
The feux rouges compensation device based on RGB lamps of the present embodiment can perform another kind provided in an embodiment of the present invention and be based on
The feux rouges compensation method of RGB lamps, realization principle is similar, and details are not described herein again.
The present embodiment is by obtaining the RGB light temperature information that thermistor detects；According to preset RGB light temperatures information
With the linear relationship between feux rouges PWM duty cycle compensating factor, feux rouges PWM duty cycle corresponding with RGB light temperature information is determined
Compensating factor；Obtain the red light luminance information in RGB lamps；It is compensated according to feux rouges PWM duty cycle corresponding with RGB light temperature information
The factor and red light luminance information, determine PWM count values；According to PWM count values, the red light output control electricity into RGB lamps
Stream.So as to the temperature value by obtaining RGB lamps in real time, feux rouges PWM duty cycle corresponding with temperature value is calculated in real time and is mended
The factor is repaid, and then can red light be calculated according to the red light luminance information in feux rouges PWM duty cycle compensating factor and RGB lamps
PWM count values, according to the PWM count values to red light carry out current control；And then it provides a kind of feux rouges based on RGB lamps and mends
Device is repaid, in the course of work of RGB lamps, with the temperature change of RGB lamps, brightness is carried out to the red light in RGB lamps in real time
Compensation deals, and then the brightness by changing red light to realize that the overall brightness of control RGB lamps and color are stable, keeps away
Exempted from user using during RGB lamps because the brightness change of RGB lamps and caused by user sense of discomfort.
Fig. 7 is a kind of circuit diagram of RGB lamps provided in an embodiment of the present invention, as shown in fig. 7, provided in this embodiment
RGB lamps, including：Processor 71, at least one red light 72, at least one green light, at least one blue lamp and thermistor 73；
Processor 71 is green with each red light 72 at least one red light 72, each at least one green light respectively
Each blue lamp connection in lamp, at least one blue lamp；
Processor 71 is connect with thermistor 73；
Thermistor 73, for detecting the RGB light temperature information of RGB lamps；
Processor 71, for performing the feux rouges compensation method based on RGB lamps of Fig. 2 or embodiment illustrated in fig. 4 offer.
In the present embodiment, specifically, RGB lamps are made of multiple red lights 72, multiple green lights and multiple blue lamps, wherein,
Red light 72 can be red light diode, and green light can be green light diode, and blue lamp can be blue lamp diode.It is set in RGB lamps
Processor 71 is equipped with, processor 71 is electrically connected and connect with each red light 72, each green light, each blue lamp respectively.
A thermistor 73 is provided in RGB lamps, it is preferred that thermistor 73 is NTC thermistor 73；By thermistor 73 with
The processor 71 of RGB lamps is electrically connected.A transistor 74 is also provided in RGB lamps, processor 71 passes through transistor 74
It is electrically connected with red light 72, specifically, first end and the processor 71 of transistor 74 are electrically connected, and the of transistor 74
Two ends are electrically connected with red light 72；Also, the third end of transistor 74 is electrically connected with power supply 75.Transistor 74 plays
The effects that rectification, switch.
The connection of more than circuit is based on, in the course of work of RGB lamps, thermistor detects the temperature information of RGB lamps；So
Preprocessor can perform the method that Fig. 2 or embodiment illustrated in fig. 4 provide, and may refer to retouching for Fig. 2 or embodiment illustrated in fig. 4
It states, repeats no more.
The present embodiment by provide by processor 71, at least one red light 72, at least one green light, at least one blue lamp,
And thermistor 73 form RGB lamps, processor 71 respectively at least one red light 72 each red light 72, at least one
Each blue lamp connection in each green light, at least one blue lamp in a green light；Processor 71 is connect with thermistor 73；
Processor 71, for performing the feux rouges compensation method based on RGB lamps of Fig. 2 or embodiment illustrated in fig. 4 offer.So as to processor 71
The temperature value of RGB lamps is obtained in real time, calculates feux rouges PWM duty cycle compensating factor corresponding with temperature value in real time, and then
Processor 71 can calculate the PWM count values of red light 72, processor 71 is according to this according to feux rouges PWM duty cycle compensating factor
PWM count values carry out current control to red light 72；And then a kind of RGB lamps are provided, in the course of work of RGB lamps, with RGB
The temperature change of lamp in real time carries out the red light 72 in RGB lamps the compensation deals of brightness, and then by changing the bright of red light 72
Degree to realize that the overall brightness of control RGB lamps and color are stable, is avoided during user uses RGB lamps because of RGB
The brightness change of lamp and caused by user sense of discomfort.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only
A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or
Person is desirably integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
It connects, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
Component may or may not be physical unit, you can be located at a place or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, is used including some instructions so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) perform the present invention
The part steps of the method for embodiment.And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various to deposit
Store up the medium of program code.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.The present invention is directed to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope and spirit of the disclosure are by following
Claims are pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claims
System.
Claims (13)
1. a kind of feux rouges compensation method based on RGB lamps, which is characterized in that including：
Obtain the RGB RGB light temperature information that thermistor detects；
According to the linear relationship between preset RGB light temperatures information and feux rouges pulse width modulation (PWM) duty ratio compensating factor,
Determine feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information；
According to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information, PWM count values are determined；
According to the PWM count values, the red light output control electric current into the RGB lamps.
2. according to the method described in claim 1, it is characterized in that, the basis and the RGB light temperatures information are corresponding red
Light PWM duty cycle compensating factor, determines PWM count values, including：
Obtain the red light luminance information in the RGB lamps；
According to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information and the red light luminance information,
Determine the PWM count values.
3. according to the method described in claim 2, it is characterized in that, the PWM count values are Dutytemp=Dutymax*F*
level/255；
Wherein, DutymaxRepresent the maximum count value of the red light PWM counters in the RGB lamps, F represents that the feux rouges PWM is accounted for
Sky represents the red light luminance information than compensating factor, level.
4. according to the method described in claim 3, it is characterized in that, it in temperature is 100 that the maximum count value, which is the RGB lamps,
DEG C, under conditions of the PWM duty cycle of the red light is 100%, the count value of the red light PWM counters.
5. according to the method described in claim 1, it is characterized in that, the linear relationship is F=0.0053*t+0.4667；
Wherein, F represents the feux rouges PWM duty cycle compensating factor, and t represents the RGB light temperatures information.
6. according to claim 1-5 any one of them methods, which is characterized in that according to the PWM count values, to the RGB
Red light output control electric current in lamp, including：
According to the PWM count values, the PWM duty cycle of the driving control signal of the red light is calculated, and generate and accounted for the PWM
Sky is than corresponding driving control signal；
According to the corresponding driving control signal of the PWM duty cycle, to the red light output current.
7. a kind of feux rouges compensation device based on RGB lamps, which is characterized in that including：
First acquisition module, for obtaining the RGB light temperature information that thermistor detects；
First determining module, for according to linear between preset RGB light temperatures information and feux rouges PWM duty cycle compensating factor
Relationship determines feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information；
Second determining module, for according to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information, determining
PWM count values；
Output module, for according to the PWM count values, the red light output into the RGB lamps to control electric current.
8. device according to claim 7, which is characterized in that second determining module, including：
Acquisition submodule, for obtaining the red light luminance information in the RGB lamps；
Determination sub-module, for according to feux rouges PWM duty cycle compensating factor corresponding with the RGB light temperatures information, Yi Jisuo
Red light luminance information is stated, determines the PWM count values.
9. device according to claim 8, which is characterized in that the PWM count values are Dutytemp=Dutymax*F*
level/255；
Wherein, DutymaxRepresent the maximum count value of the red light PWM counters in the RGB lamps, F represents that the feux rouges PWM is accounted for
Sky represents the red light luminance information than compensating factor, level.
10. device according to claim 9, which is characterized in that the maximum count value is that the RGB lamps are in temperature
100 DEG C, under conditions of the PWM duty cycle of the red light is 100%, the count value of the red light PWM counters.
11. device according to claim 7, which is characterized in that the linear relationship is F=0.0053*t+0.4667；
Wherein, F represents the feux rouges PWM duty cycle compensating factor, and t represents the RGB light temperatures information.
12. according to claim 7-11 any one of them devices, which is characterized in that the output module, including：
Submodule is generated, for according to the PWM count values, calculating the PWM duty cycle of the driving control signal of the red light, and
Generation driving control signal corresponding with the PWM duty cycle；
Output sub-module, for according to the corresponding driving control signal of the PWM duty cycle, to the red light output current.
13. a kind of RGB lamps, which is characterized in that including：Processor, at least one red light, at least one green light, at least one indigo plant
Lamp and thermistor；
The processor is green with each red light at least one red light, each at least one green light respectively
Each blue lamp connection in lamp, at least one blue lamp；
The processor is connect with the thermistor；
The thermistor, for detecting the RGB light temperature information of the RGB lamps；
The processor, for performing such as feux rouges compensation method of the claim 1-6 any one of them based on RGB lamps.
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| CN201711375453.2A CN108184285A (en) | 2017-12-19 | 2017-12-19 | Feux rouges compensation method, device and RGB lamps based on RGB lamps |
| PCT/CN2018/122185 WO2019120230A1 (en) | 2017-12-19 | 2018-12-19 | Red light compensation method and device for rgb lamp and rgb lamp |
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| WO2019120230A1 (en) * | 2017-12-19 | 2019-06-27 | Sengled Co., Ltd. | Red light compensation method and device for rgb lamp and rgb lamp |
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| US20150366028A1 (en) * | 2014-06-11 | 2015-12-17 | Richtek Technology Corporation | Light emitting device driver circuit and driving method of light emitting device circuit |
| CN105430814A (en) * | 2015-12-30 | 2016-03-23 | 北京经纬恒润科技有限公司 | LED lamp temperature compensation control method, device and system |
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| CN101950548B (en) * | 2010-09-28 | 2012-11-28 | 中航华东光电有限公司 | Backlight color LED complementary color method |
| CN104582166A (en) * | 2014-12-29 | 2015-04-29 | 华南理工大学 | Constant illumination driving method for coping with LED (light-emitting diode) light decay |
| KR101699396B1 (en) * | 2015-10-29 | 2017-01-24 | 박철형 | Led lighting control device and method |
| CN106132002B (en) * | 2016-06-27 | 2018-11-02 | 佛山市毅丰电器实业有限公司 | Control LED light color color-mixture device and its method |
| CN108184285A (en) * | 2017-12-19 | 2018-06-19 | 生迪智慧科技有限公司 | Feux rouges compensation method, device and RGB lamps based on RGB lamps |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150366028A1 (en) * | 2014-06-11 | 2015-12-17 | Richtek Technology Corporation | Light emitting device driver circuit and driving method of light emitting device circuit |
| CN105430814A (en) * | 2015-12-30 | 2016-03-23 | 北京经纬恒润科技有限公司 | LED lamp temperature compensation control method, device and system |
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| WO2019120230A1 (en) * | 2017-12-19 | 2019-06-27 | Sengled Co., Ltd. | Red light compensation method and device for rgb lamp and rgb lamp |
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