CN106793402A - A kind of light source control method and device - Google Patents
A kind of light source control method and device Download PDFInfo
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- CN106793402A CN106793402A CN201611192126.9A CN201611192126A CN106793402A CN 106793402 A CN106793402 A CN 106793402A CN 201611192126 A CN201611192126 A CN 201611192126A CN 106793402 A CN106793402 A CN 106793402A
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of light source control method and device, wherein the method includes：The source light level information that management terminal sends is received, source light level information includes that each light source distinguishes corresponding color grade and the corresponding intensity level of whole light sources；Corresponding light source control signal is generated based on source light level information, light source is controlled using light source control information, so that each light source sends and intensity level and the corresponding light of corresponding color grade.In technical scheme disclosed in the present application, when needing to be adjusted the light that light source sends, administrative staff can send source light level information by management terminal, and then corresponding light source control signal is generated based on the source light level information, to control corresponding light source to realize intensity level corresponding with source light level information and color grade, thus, the control of different source light levels and color grade can be realized to light source by above-mentioned technical proposal in different environment, and then cause that light source can adapt to varying environment.
Description
Technical field
The present invention relates to machine vision light source technical field, more specifically to a kind of light source control method and device.
Background technology
With the rising of labor cost, industrial automatization is improved year by year, and machine vision has played huge wherein
Effect, its application develops into size detection, 3-D scanning from initial detection, production monitoring, Parts Recognition, then to artificial intelligence
Etc., its influence power is also gradually rising.
One typical vision system should include IMAQ, light-source system, image processing module, intelligent decision decision model
Block and Mechanical course performing module, and can the success or failure of a vision system depend primarily on and the characteristics of image for requiring to detect is entered
Row is extracted, wherein whether most crucial technological difficulties are exactly substantially to detect feature, a good light source can allow feature as far as possible
Substantially, obvious contrast is produced as far as possible between part and non-detection part that detection is needed in object, so light source is one
The key of individual vision system success or failure.But the light source for being used when being extracted to characteristics of image in the prior art is usually pre-
The light source with unified specification for first setting, but inventor has found, and this light source can not well be applied to different rings
Border, therefore, easily occur the situation for extracting failure when carrying out image characteristics extraction using this light source.
In sum, how a kind of light source that can adapt to varying environment is provided, be current those skilled in the art urgently
The problem of solution.
The content of the invention
It is an object of the invention to provide a kind of light source control method and device, to provide a kind of varying environment that can adapt to
Light source.
To achieve these goals, the present invention provides following technical scheme：
A kind of light source control method, including：
The source light level information that management terminal sends is received, the source light level information includes that each light source distinguishes corresponding face
Colour gradation and the corresponding intensity level of whole light sources；
Corresponding light source control signal is generated based on the source light level information, using the light source control information to described
Light source is controlled, so that each light source sends and the intensity level and the corresponding light of the corresponding color grade.
Preferably, corresponding light source control signal is generated based on the source light level information, including：
Calculated and each light source pair based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources
The control voltage answered；
Amplification is filtered respectively to the corresponding control voltage of each light source, light source control corresponding with each light source is obtained
Signal.
Preferably, based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources calculate with respectively
The corresponding control voltage of light source, including：
Red light source, green are calculated according to preset formula based on the corresponding color grade of each light source and the intensity level
Light source and blue-light source are corresponding respectively to compare difference f1, f2 and f3, wherein, the color grade and the source light level are
Value more than or equal to 0 and less than or equal to 255；
If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*a2/a1, i3=i1*a3/a1；If f1>0、f2<=0 and
f3<=0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3<=0, then i1=f1, i2=i1*a2/a1, i3=0；
If f1>0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*a3/a1；If f1<0、f2>0 and f3>0, then i1=0, i2
=f2, i3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then i1=i2=i3=0；If f1<0、f2<=0 and f3<=
0, then i1=i3=0, i2=f2；If f1<0、f2<=0 and f3<=0, then i1=i2=0, i3=f3；Wherein, a1, a2 and a3
Red light source, green light source and the corresponding color grade of blue-light source are represented respectively；
It is determined that with the corresponding magnitude of voltage of i1, i2 and i3 difference for respectively with red light source, green light source and blue-light source pair
The control voltage answered.
A kind of light source control device, including：
Receiver module, the source light level information for receiving management terminal transmission, the source light level information includes each light
Distinguish corresponding color grade and the corresponding intensity level of whole light sources in source；
Control module, for generating corresponding light source control signal based on the source light level information, using the light source
Control information is controlled to the light source, so that each light source sends and the intensity level and the corresponding color grade pair
The light answered.
Preferably, the control module includes：
Computing module, for being calculated based on the corresponding intensity level of the corresponding color grade of each light source and whole light sources
Go out control voltage corresponding with each light source；
Filter amplification circuit, for being filtered amplification respectively to the corresponding control voltage of each light source, obtain with respectively
The corresponding light source control signal of light source.
Preferably, the computing module includes：
Single-chip microcomputer, it is red for being calculated according to preset formula based on the corresponding color grade of each light source and the intensity level
Color light source, green light source and blue-light source are corresponding respectively to compare difference f1, f2 and f3, wherein, the color grade and described
Source light level is the value more than or equal to 0 and less than or equal to 255；If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*
A2/a1, i3=i1*a3/a1；If f1>0、f2<=0 and f3<=0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3
<=0, then i1=f1, i2=i1*a2/a1, i3=0；If f1>0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*
a3/a1；If f1<0、f2>0 and f3>0, then i1=0, i2=f2, i3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then
I1=i2=i3=0；If f1<0、f2<=0 and f3<=0, then i1=i3=0, i2=f2；If f1<0、f2<=0 and f3<=0,
Then i1=i2=0, i3=f3；Wherein, a1, a2 and a3 represent red light source, green light source and the corresponding face of blue-light source respectively
Colour gradation；It is determined that it is corresponding with red light source, green light source and blue-light source respectively to distinguish corresponding magnitude of voltage with i1, i2 and i3
Control voltage.
Preferably, the single-chip microcomputer is specially atmega2560 single-chip microcomputers.
Preferably, corresponding current limliting is connected between the output end of atmega2560 single-chip microcomputers and the filter amplification circuit
Resistance.
Preferably, the receiver module includes RS232 serial ports.
Preferably, each light source is 5050RGB drop glue waterproof soft light bars.
The invention provides a kind of light source control method and device, wherein the method includes：Receive what management terminal sent
Source light level information, the source light level information includes that each light source distinguishes corresponding color grade and the corresponding light intensity of whole light sources
Grade；Corresponding light source control signal is generated based on the source light level information, using the light source control information to the light
Source is controlled, so that each light source sends and the intensity level and the corresponding light of the corresponding color grade.The application is public
In the technical scheme opened, when needing to be adjusted the light that light source sends, administrative staff can send light by management terminal
Source class information, and then corresponding light source control signal is generated based on the source light level information, with control corresponding light source realize with
The corresponding intensity level of source light level information and color grade, thereby, it is possible to pass through above-mentioned technical proposal in different environment
The control of different source light levels and color grade is realized to light source, and then causes that light source can adapt to varying environment, it is ensured that for
The effective detection of characteristics of image and extraction.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of light source control method provided in an embodiment of the present invention；
Fig. 2 is the realization for being filtered amplification in a kind of light source control method provided in an embodiment of the present invention to control voltage
Schematic diagram；
Fig. 3 is a kind of structural representation of light source control device provided in an embodiment of the present invention；
Fig. 4 is the signal of single-chip microcomputer and filter amplification circuit in a kind of light source control device provided in an embodiment of the present invention
Figure；
Fig. 5 is the schematic diagram of management terminal control interface in a kind of light source control device provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, it illustrates a kind of flow chart of light source control method provided in an embodiment of the present invention, can be wrapped
Include：
S11：The source light level information that management terminal sends is received, source light level information includes that each light source distinguishes corresponding face
Colour gradation and the corresponding intensity level of whole light sources.
Wherein, each light source can include the light source with different colours, when pigment concentration is different, cause color to have right
The color range answered, namely color grade, color grade refers to that light that light source sends has the concentration of its corresponding color in the application, and light
Luminous intensity is by force, the concentration of color and light intensity different brackets can be divided into according to being actually needed, form corresponding color
Grade and intensity level.When needing to be adjusted the light that light source sends according to actual environment, can be passed through by administrative staff
Management terminal sends required source light level information.
S12：Corresponding light source control signal is generated based on source light level information, light source is carried out using light source control information
Control, so that each light source sends and intensity level and the corresponding light of corresponding color grade.
Corresponding light source control signal is generated based on source light level information, and light source control signal is sent to each light source,
The light intensity of the light to control each light source to send is corresponding with intensity level, color depth and the corresponding color grade pair of the light for sending
Should, so as to realize the regulation to the color depth and light intensity of light source.
In technical scheme disclosed in the present application, when needing to be adjusted the light that light source sends, administrative staff can lead to
Cross management terminal and send source light level information, and then corresponding light source control signal is generated based on the source light level information, to control
Corresponding light source processed realizes intensity level corresponding with source light level information and color grade, thereby, it is possible in different environment
The control of different source light levels and color grade is realized to light source by above-mentioned technical proposal, and then causes that light source can adapt to not
Same environment, it is ensured that effective detection and extraction for characteristics of image.
A kind of light source control method provided in an embodiment of the present invention, corresponding light source control is generated based on source light level information
Signal, can include：
Calculated based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources corresponding with each light source
Control voltage；
Amplification is filtered respectively to the corresponding control voltage of each light source, light source control letter corresponding with each light source is obtained
Number.
Based on color grade and intensity level calculate with each light source corresponding control voltage of difference, and then to the control
Voltage is filtered amplification, obtains corresponding light source control signal, wherein control voltage is filtered also will control voltage work
For the realization principle for needing input voltage to be filtered can be with as shown in Fig. 2 the input voltage for setting wave filter be ex output voltages
It is ey, then respective filter realizes that the differential equation of circuit is：
This is a typical first-order system, makes τ=RC, referred to as time constant, and Laplace transformation is taken to above formula, can be obtained
Arrive：
τsey+ey=ex
Order
H (s) is transmission function, can be specifically expressed as：
Or
Its amplitude-frequency, phase-frequency characteristic formula are：
Analysis understand, when frequency f very littles, A (f)=1, signal is not decayed, can by wave filter, when f is very big,
A (f)=0, signal is fully blocked, it is impossible to by wave filter, so that by the low pass filter, realization filters high frequency oscillation
Function.The follow-up voltage for obtaining that will filter again is amplified according to ratio set in advance according to actual needs, so that by right
The filter and amplification of control voltage ensure that the effective control for corresponding light source.
A kind of light source control method provided in an embodiment of the present invention, based on the corresponding color grade of each light source and whole light sources
Corresponding intensity level calculates control voltage corresponding with each light source, can include：
Red light source, green light source are calculated according to preset formula based on the corresponding color grade of each light source and intensity level
And blue-light source is corresponding respectively compares difference f1, f2 and f3, wherein, color grade and source light level are more than or equal to 0
And the value less than or equal to 255；
If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*a2/a1, i3=i1*a3/a1；If f1>0、f2<=0 and
f3<=0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3<=0, then i1=f1, i2=i1*a2/a1, i3=0；
If f1>0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*a3/a1；If f1<0、f2>0 and f3>0, then i1=0, i2
=f2, i3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then i1=i2=i3=0；If f1<=0, f2>0 and f3<=
0, then i1=i3=0, i2=f2；If f1<=0, f2<=0 and f3>0, then i1=i2=0, i3=f3；Wherein, a1, a2 and a3
Red light source, green light source and the corresponding color grade of blue-light source are represented respectively；
It is determined that with the corresponding magnitude of voltage of i1, i2 and i3 difference for respectively with red light source, green light source and blue-light source pair
The control voltage answered.
Wherein it is possible to calculate f1, f2 and f3 respectively according to the following formula：
F1=a1- (255-a4)
F2=a2- (255-a4)
F3=a3- (255-a4)
A4 in above formula represents intensity level.
It is further to note that after obtaining i1, i2 and i3, if wherein there is non-integer, according to rounding up
Or other principles for setting according to actual needs are rounded to non-integer, corresponding integer is obtained, and then according to the integer
Determine corresponding control voltage.I1, i2 and i3 can be set according to actual needs with control voltage corresponding relation respectively,
Will not be repeated here.In addition, respectively 0 to 255 grades of the light that red light source, green light source and blue-light source are sent, wherein 0 grade
Represent that corresponding light color is most shallow, 255 grades represent that corresponding light color is most deep, and 0 grade of light intensity represents that corresponding light is most dark,
255 grades represent that corresponding light is most bright.According to the above method, the control voltage of each light source can be accurately and effectively obtained, and then
Control voltage based on each light source is achieved effective control to light source.
The embodiment of the present invention additionally provides a kind of light source control device, as shown in figure 3, can include：
Receiver module 11, the source light level information for receiving management terminal transmission, source light level information includes each light source
The corresponding color grade of difference and the corresponding intensity level of whole light sources；
Control module 12, for generating corresponding light source control signal based on source light level information, is believed using light source control
Breath is controlled to light source, so that each light source sends and intensity level and the corresponding light of corresponding color grade.
A kind of light source control device provided in an embodiment of the present invention, control module can include：
Computing module, for based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources calculate with
The corresponding control voltage of each light source；
Filter amplification circuit, for being filtered amplification respectively to the corresponding control voltage of each light source, obtains and each light source
Corresponding light source control signal.
A kind of light source control device provided in an embodiment of the present invention, computing module can include：
Single-chip microcomputer, for calculating red light according to preset formula based on the corresponding color grade of each light source and intensity level
Source, green light source and blue-light source are corresponding respectively to compare difference f1, f2 and f3, wherein, color grade and source light level are
Value more than or equal to 0 and less than or equal to 255；If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*a2/a1, i3=
i1*a3/a1；If f1>0、f2<=0 and f3<=0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3<=0, then i1
=f1, i2=i1*a2/a1, i3=0；If f1>0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*a3/a1；If f1<
0、f2>0 and f3>0, then i1=0, i2=f2, i3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then i1=i2=i3=
0；If f1<0、f2<=0 and f3<=0, then i1=i3=0, i2=f2；If f1<0、f2<=0 and f3<=0, then i1=i2=0,
I3=f3；Wherein, a1, a2 and a3 represent red light source, green light source and the corresponding color grade of blue-light source respectively；It is determined that with
I1, i2 and i3 distinguish corresponding magnitude of voltage for respectively with red light source, green light source and the corresponding control voltage of blue-light source.
A kind of light source control device provided in an embodiment of the present invention, single-chip microcomputer is specifically as follows atmega2560 single-chip microcomputers.
It is fast with calculating speed using the above-mentioned calculating of the chip microcontroller, the advantages of as a result accurate, naturally it is also possible to according to
Being actually needed carries out other settings, within protection scope of the present invention.
A kind of light source control device provided in an embodiment of the present invention, the output end and filter and amplification of atmega2560 single-chip microcomputers
Corresponding current-limiting resistance can be connected between circuit.
Atmega2560 single-chip microcomputers can be with as shown in figure 4, remove with the schematic diagram of filter amplification circuit in the figure
Remaining circuit outside atmega2560 single-chip microcomputers, R1, R2, R3 and led is above-mentioned filter amplification circuit, wherein R1, R2 and
R3 represents the current-limiting resistance of the different light sources of correspondence respectively such that it is able to ensure circuit safety and reliability.Specifically,
The tunnel of atmega2560 single-chip microcomputers P0.4, P0.5, P0.6 tri- exports, and by current-limiting resistance R1, R2, R3, then accesses three poles of correspondence
Pipe base stage, the colelctor electrode connection RC filter circuits of correspondence triode, then accesses correspondence fet gate (N mos pipe grid
Pole), when signal flows to fet gate through RC filter circuits, a voltage can be produced between the grid source electrode of scene effect pipe
Vgs and Vgs>Vt, wherein Vt are the conducting voltage of fet gate, now FET conducting, and otherwise FET disconnects,
So as to realize that on-off action controls the break-make of circuit, so control corresponding light source it is bright, go out and color grade, intensity level
Deng the tunnels of the present embodiment Fig. 4 Zhong tri- are respectively used to control red led, green led, blueness led.It is further to note that figure
Shown in 4 except atmega2560 single-chip microcomputers and R1, R2 and R3 filter amplification circuit be the tool realized based on principle shown in Fig. 2
One of body implementation, provided of course that can realize other circuits of principle shown in Fig. 2 within protection scope of the present invention.
A kind of light source control device provided in an embodiment of the present invention, receiver module can include RS232 serial ports.
The communication of management terminal and light source control device is realized by RS232 serial ports, the high speed of data transfer is ensure that
Accuracy, can also according to actual needs carry out other settings, within protection scope of the present invention certainly.
Corresponding, management terminal is used to be input into intensity level and the MFC digit manipulations interface of color grade can be such as Fig. 5 institutes
Show, it is possible, firstly, to open serial communication, allow management terminal to be communicated with single-chip microcomputer, LED light source electrified light emitting then can be with
Light source colour and its intensity are adjusted according to the actual requirements, and single LED light is changed by 0~255 grade of regulation red, green, blue sliding block
Color depth, realizes that light source colour changes, and by 0~255 grade of three paths of LEDs light intensity sliding block of regulation, realizes intensity of light source control.Tool
Body, be that feux rouges is adjusted into 255 grades of the superlative degree in Fig. 5, and 155 grades of green glow, 205 grades of blue light, light intensity are 237 grades, are applied to reality
In case.
A kind of light source control device provided in an embodiment of the present invention, each light source can be 12V, 5050RGB drop glue waterproof
Soft light bar.So that light source waterproof and easy to install.
Above-mentioned technical proposal provided in an embodiment of the present invention can realize fully digitalization control, man-machine interaction, while energy
It is enough by administrative staff by management terminal realization to the remote control of light source, and LED light source brightness, face are realized based on PWM technologies
256 grades of continuously adjustabes of color, increase adaptability of the NI Vision Builder for Automated Inspection to environment, improve the stability of system.In addition, for this hair
The explanation of corresponding part refers to a kind of light provided in an embodiment of the present invention in a kind of light source control device that bright embodiment is provided
The detailed description of corresponding part, will not be repeated here in operated control method.
The foregoing description of the disclosed embodiments, enables those skilled in the art to realize or uses the present invention.To this
Various modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with principles disclosed herein and features of novelty most wide
Scope.
Claims (10)
1. a kind of light source control method, it is characterised in that including：
The source light level information that management terminal sends is received, the source light level information distinguishes corresponding color etc. including each light source
Level and the corresponding intensity level of whole light sources；
Corresponding light source control signal is generated based on the source light level information, using the light source control information to the light source
It is controlled, so that each light source sends and the intensity level and the corresponding light of the corresponding color grade.
2. method according to claim 1, it is characterised in that corresponding light source control is generated based on the source light level information
Signal processed, including：
Calculated based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources corresponding with each light source
Control voltage；
Amplification is filtered respectively to the corresponding control voltage of each light source, light source control letter corresponding with each light source is obtained
Number.
3. method according to claim 2, it is characterised in that based on the corresponding color grade of each light source and whole light sources pair
The intensity level answered calculates control voltage corresponding with each light source, including：
Red light source, green light source are calculated according to preset formula based on the corresponding color grade of each light source and the intensity level
And blue-light source is corresponding respectively compares difference f1, f2 and f3, wherein, the color grade and the source light level are and are more than
Or the value equal to 0 and less than or equal to 255；
If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*a2/a1, i3=i1*a3/a1；If f1>0、f2<=0 and f3<=
0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3<=0, then i1=f1, i2=i1*a2/a1, i3=0；If f1>
0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*a3/a1；If f1<0、f2>0 and f3>0, then i1=0, i2=f2,
I3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then i1=i2=i3=0；If f1<0、f2<=0 and f3<=0, then i1
=i3=0, i2=f2；If f1<0、f2<=0 and f3<=0, then i1=i2=0, i3=f3；Wherein, a1, a2 and a3 difference table
Show red light source, green light source and the corresponding color grade of blue-light source；
It is determined that being corresponding with red light source, green light source and blue-light source respectively with the corresponding magnitude of voltage of i1, i2 and i3 difference
Control voltage.
4. a kind of light source control device, it is characterised in that including：
Receiver module, the source light level information for receiving management terminal transmission, the source light level information includes each light source point
Not corresponding color grade and the corresponding intensity level of whole light sources；
Control module, for generating corresponding light source control signal based on the source light level information, using the light source control
Information is controlled to the light source, so that each light source sends corresponding with the intensity level and the corresponding color grade
Light.
5. device according to claim 4, it is characterised in that the control module includes：
Computing module, for based on the corresponding color grade of each light source and the corresponding intensity level of whole light sources calculate with
The corresponding control voltage of each light source；
Filter amplification circuit, for being filtered amplification respectively to the corresponding control voltage of each light source, obtains and each light source
Corresponding light source control signal.
6. device according to claim 5, it is characterised in that the computing module includes：
Single-chip microcomputer, for calculating red light according to preset formula based on the corresponding color grade of each light source and the intensity level
Source, green light source and blue-light source are corresponding respectively to compare difference f1, f2 and f3, wherein, the color grade and the light source
Grade is the value more than or equal to 0 and less than or equal to 255；If f1>0、f2>0 and f3>0, then i1=f1, i2=i1*a2/
A1, i3=i1*a3/a1；If f1>0、f2<=0 and f3<=0, then i1=f1, i2=0, i3=0；If f1>0、f2>0 and f3<=
0, then i1=f1, i2=i1*a2/a1, i3=0；If f1>0、f2<=0 and f3>0, then i1=f1, i2=0, i3=i1*a3/
a1；If f1<0、f2>0 and f3>0, then i1=0, i2=f2, i3=i2*a3/a2；If f1<0、f2<=0 and f3<=0, then i1=
I2=i3=0；If f1<0、f2<=0 and f3<=0, then i1=i3=0, i2=f2；If f1<0、f2<=0 and f3<=0, then i1
=i2=0, i3=f3；Wherein, a1, a2 and a3 represent red light source, green light source and the corresponding color of blue-light source etc. respectively
Level；It is determined that with the corresponding magnitude of voltage of i1, i2 and i3 difference for respectively with red light source, green light source and the corresponding control of blue-light source
Voltage processed.
7. device according to claim 6, it is characterised in that the single-chip microcomputer is specially atmega2560 single-chip microcomputers.
8. device according to claim 7, it is characterised in that the output end of atmega2560 single-chip microcomputers is put with the filtering
Corresponding current-limiting resistance is connected between big circuit.
9. device according to claim 7, it is characterised in that the receiver module includes RS232 serial ports.
10. device according to claim 9, it is characterised in that each light source is 5050RGB drop glue waterproof soft light bars.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101184355A (en) * | 2007-12-06 | 2008-05-21 | 哈尔滨师范大学 | Method and device for synthesizing white light using three primary colors LED light source |
| CN201145154Y (en) * | 2007-09-13 | 2008-11-05 | 北京精雕科技有限公司 | Self-adapting lighting source apparatus based on machine vision system feature model |
| WO2010036869A2 (en) * | 2008-09-25 | 2010-04-01 | Lumination Llc | Adjustable color illumination source |
| CN101707052A (en) * | 2009-12-09 | 2010-05-12 | 安徽华东光电技术研究所 | RGB-based method for adjusting white balance of LED backlight |
| CN101737762A (en) * | 2008-11-13 | 2010-06-16 | 宏达国际电子股份有限公司 | Portable electronic device and control method of light source thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145154Y (en) * | 2007-09-13 | 2008-11-05 | 北京精雕科技有限公司 | Self-adapting lighting source apparatus based on machine vision system feature model |
| CN101184355A (en) * | 2007-12-06 | 2008-05-21 | 哈尔滨师范大学 | Method and device for synthesizing white light using three primary colors LED light source |
| WO2010036869A2 (en) * | 2008-09-25 | 2010-04-01 | Lumination Llc | Adjustable color illumination source |
| CN101737762A (en) * | 2008-11-13 | 2010-06-16 | 宏达国际电子股份有限公司 | Portable electronic device and control method of light source thereof |
| CN101707052A (en) * | 2009-12-09 | 2010-05-12 | 安徽华东光电技术研究所 | RGB-based method for adjusting white balance of LED backlight |
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