CN109889808A - Brightness adjusting method, device, equipment and storage medium based on LED multi-path - Google Patents
Brightness adjusting method, device, equipment and storage medium based on LED multi-path Download PDFInfo
- Publication number
- CN109889808A CN109889808A CN201910211864.0A CN201910211864A CN109889808A CN 109889808 A CN109889808 A CN 109889808A CN 201910211864 A CN201910211864 A CN 201910211864A CN 109889808 A CN109889808 A CN 109889808A
- Authority
- CN
- China
- Prior art keywords
- led
- brightness
- power
- node
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to projection arrangement apparatus fields, brightness adjusting method, projection arrangement, equipment and storage medium the invention discloses a kind of projection arrangement based on LED multi-path.The described method includes: original intensity and the initial colour temperature of acquisition projection light source, the brightness ratio of each LED is determined according to the initial colour temperature；It receives the brightness regulation comprising brightness regulation grade to instruct, the adjusting brightness of projection light source is determined according to the original intensity of projection light source and brightness regulation grade, and determine the node brightness of each LED according to the brightness ratio of the adjusting brightness and each LED；The brightness power curve that each LED is obtained from database, according to the brightness power curve acquisition of each LED node power corresponding with the node brightness of each LED；It adjusts each LED drive circuit and reaches the node power of each LED, and control projection light source and carry out picture projection to adjust brightness and initial colour temperature.This invention ensures that colour temperature is consistent when projection arrangement works, and realize projection arrangement without rank, accurately brightness control function.
Description
Technical field
The present invention relates to projection fields, and in particular to a kind of brightness adjusting method based on LED multi-path, is set projection arrangement
Standby and storage medium.
Background technique
Since current DLP projector (also referred to as " digital light processing projector ") product does not have the nonrated brightness of light source
Regulatory function, or by the brightness control function of brightness of image saturation degree realization "false", will lead to DLP projector product and mention
The brightness control function experience of confession is poor, and is not able to satisfy the projection brightness demand that user uses projector under various circumstances.
Entangle the reason is that present DLP shadow casting technique is using multi-color LED light source rather than white light source realizes image projection, and perspective view
The colour temperature of picture is modulated by the LED (LED light source that a kind of LED of wavelength corresponds to a kind of color) of multichannel different wave length, and each
The brightness of road wavelength LED is nonlinear with power relation, if simply proportionally relationship adjust LED light source power,
It can make the colour temperature of projected image that bigger variation occur during brightness regulation, influence the image quality experience of projection.
Summary of the invention
The embodiment of the present invention provides a kind of brightness adjusting method based on LED multi-path, device, equipment and storage medium, has
It is consistent that colour temperature is able to maintain conducive to no rank, accurately brightness regulation, and during brightness regulation.
A kind of brightness adjusting method based on LED multi-path, comprising:
The original intensity of acquisition projection light source and initial colour temperature, determine each LED according to the initial colour temperature of the projection light source
Brightness ratio；The projection light source refers to the white light as made of the modulation of source of the LED illumination of multichannel different wave length；
It receives the brightness regulation comprising brightness regulation grade to instruct, according to the original intensity of the projection light source and described bright
Degree adjusts the adjusting brightness that grade determines the projection light source, and according to the adjusting brightness of the projection light source and each LED
Brightness ratio determine the node brightness of each LED；
The brightness power curve that each LED is obtained from database, according to the brightness power curve acquisition of each LED
Node power corresponding with the node brightness of each LED；
The actual power that each LED drive circuit is adjusted according to the node power of each LED, in each LED driving electricity
When the actual power on road reaches the node power of each LED, control the projection light source with the adjusting brightness and it is described just
Beginning colour temperature carries out picture projection.
A kind of projection arrangement, the projection arrangement include the LED of at least three road different wave lengths, comprising:
Initialization module, for obtain projection light source original intensity and initial colour temperature, according to the projection light source just
Beginning colour temperature determines the brightness ratio of each LED；The projection light source refers to by the light source tune of the LED illumination of multichannel different wave length
White light made of system；
Command reception module is instructed for receiving the brightness regulation comprising brightness regulation grade, according to the projection light source
Original intensity and the brightness regulation grade determine the adjusting brightness of the projection light source, and according to the tune of the projection light source
The brightness ratio of section brightness and each LED determine the node brightness of each LED；
Parameter analysis module, for obtaining the brightness power curve of each LED from database, according to each LED
Brightness power curve acquisition node power corresponding with the node brightness of each LED；
Luminance adjustment module, for adjusting the actual power of each LED drive circuit according to the node power of each LED,
When the actual power of each LED drive circuit reaches the node power of each LED, the projection light source is controlled with described
It adjusts brightness and the initial colour temperature carries out picture projection.
A kind of computer equipment, including memory, processor and storage are in the memory and can be in the processing
The computer-readable instruction run on device, the processor are realized above-mentioned based on multichannel when executing the computer-readable instruction
The brightness adjusting method of LED.
A kind of computer readable storage medium, the computer-readable recording medium storage have computer-readable instruction, institute
It states and realizes the above-mentioned brightness adjusting method based on LED multi-path when computer-readable instruction is executed by processor.
Brightness adjusting method based on LED multi-path, device, equipment and storage medium provided by the invention, fixed each
Under the conditions of the brightness ratio of LED, if the brightness regulation instruction comprising brightness regulation grade is received, first according to projection light source
Original intensity and brightness regulation grade determine the adjusting brightness of projection light source, and according to the adjusting brightness of projection light source and each LED
Brightness ratio determine the node brightness of each LED；Then the brightness power curve that each LED is obtained from database, according to each LED
Brightness power curve determine corresponding with the node brightness of each LED node power；And then adjusting each LED drive circuit reaches it
To the node power of each LED, and controls projection light source and picture projection is carried out with the adjusting brightness and initial colour temperature.The present invention guarantees
It keeps light source color temperature consistent when projection arrangement work, and realizes the nonrated brightness control function of projection arrangement.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the application environment schematic diagram of the brightness adjusting method in one embodiment of the invention based on LED multi-path；
Fig. 2 is the flow chart of the brightness adjusting method in one embodiment of the invention based on LED multi-path；
Fig. 3 is the flow chart of the brightness adjusting method in another embodiment of the present invention based on LED multi-path；
Fig. 4 is the brightness power curve of the red LED of the brightness adjusting method in one embodiment of the invention based on LED multi-path
Figure；
Fig. 5 is the flow chart of the step S40 of the brightness adjusting method in one embodiment of the invention based on LED multi-path；
Fig. 6 is the functional block diagram of projection arrangement in one embodiment of the invention；
Fig. 7 is the functional block diagram of projection arrangement in another embodiment of the present invention；
Fig. 8 is the functional block diagram of the luminance adjustment module of projection arrangement in one embodiment of the invention；
Fig. 9 is the schematic diagram of computer equipment in one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Brightness adjusting method provided by the invention based on LED multi-path, can be applicable in the application environment such as Fig. 1, wherein
Client is communicated by network with server.Wherein, client includes but is not limited to be various for controlling projection arrangement
Intelligent mobile terminal (for example, smart phone, tablet computer etc.) and portable control equipment (for example, remote controler).Service
Device can refer to the processor being mounted in projection arrangement, can also use the either multiple clothes of the server independently of projection arrangement
The server cluster of business device composition is realized.
In one embodiment, it as shown in Fig. 2, providing a kind of brightness adjusting method based on LED multi-path, applies in this way
It is illustrated for server in Fig. 1, comprising the following steps:
S10, obtain projection light source original intensity and initial colour temperature, determined according to the initial colour temperature of the projection light source each
The brightness ratio of LED；The projection light source refers to white made of the modulation of source as the LED illumination of multichannel different wave length
Light.
Wherein, the projection light source is the white light as made of the modulation of source of the LED illumination of multichannel different wave length, as excellent
Choosing, the projection light source can be the light source by the irradiation of red LED, green LED and blue led according to preset brightness ratio
(for example, red LED is 30%, green LED 50%, blue led 20%) modulates.
The original intensity can be when initial start projection arrangement carries out picture projection, the projected light of server setting
The maximum brightness in source, can also be after carrying out brightness regulation to projection arrangement, the temporary projection light source of server it is current
Brightness.
The initial colour temperature refers to that, when projection arrangement carries out picture projection, the projection light source of server setting is most preferably being thrown
Specific colour temperature under shadow image quality.It is intelligible, when the initial colour temperature depends on the modulation of source of each LED illumination into projection light source
Brightness ratio.
The brightness ratio refers to the ratio that each LED difference is shared under same timing.It is intelligible, according to the brightness of each LED
Ratio can obtain the fixed proportion relationship between LED；That is, each LED's of acquisition is bright under fixed proportion relation condition
Degree ratio will remain unchanged.
In the present embodiment, in order to obtain initial colour temperature, driving can be adjusted by adjusting the brightness ratio of each LED
The electric current of LED, and the light source for mixing each LED illumination realizes the adjusting of initial colour temperature；When adjusting the original intensity of projection light source,
If keeping the brightness ratio of each LED constant, the initial colour temperature of the projection light source gone out by the light source hybrid modulation of each LED illumination will
It can be consistent.In another embodiment, if desired change the initial colour temperature of projection light source, then it can be by adjusting each LED's
Brightness ratio, to realize the adjusting of colour temperature.
S20 receives the brightness regulation comprising brightness regulation grade and instructs, according to the original intensity of the projection light source and institute
State the adjusting brightness that brightness regulation grade determines the projection light source, and according to the adjusting brightness of the projection light source and each described
The brightness ratio of LED determines the node brightness of each LED.
Wherein, the brightness regulation grade can be configured according to demand, can be adapted for not having to project dress under scene
The picture projection set, and there are one-to-one relationships for the adjusting brightness of the brightness regulation grade and the projection light source.
The brightness regulation instruction refers to that user triggers at client (for example, the mobile terminal connecting with server communication)
Server is sent to after preset brightness regulating button.
In the present embodiment, when receiving the brightness regulation instruction comprising brightness regulation grade, if projection light source is first
Beginning brightness is the maximum brightness of the projection light source of server setting, then can use preset brightness output model and obtain projected light
The adjusting brightness in source, and then obtain according to the adjusting brightness of projection light source and the brightness ratio of each LED the node brightness of each LED.
Wherein, the superposition for adjusting the node brightness that brightness is each LED of the projection light source；The brightness output model are as follows:
Ld=L0*N
Wherein, Ld is the adjusting brightness of projection light source；L0 is the original intensity of projection light source；N is brightness regulation grade.
Preferably, if the light source that is irradiated by red LED, green LED and blue led of projection light source is according to preset brightness
Ratio is modulated, then relationship such as formula (1) existing for node brightness of the adjusting brightness of projection light source with each LED:
Ld=Lr+Lg+Lb (1)
Wherein, Lr is the node brightness of red LED；Lg is the node brightness of green LED；Lb is that the node of blue led is bright
Degree.If the brightness ratio of red LED is n1；The brightness ratio of green LED is n2；The brightness ratio of blue led is n3, then respectively
The node brightness such as formula (2) of LED:
It therefore, can be according to formula (2) under conditions of the brightness ratio of the original intensity of known projection light source and each LED
Obtain the node brightness of each LED.
In another embodiment, before receiving the brightness regulation instruction comprising brightness regulation grade, it can control projection
The projection light source of device carries out picture projection with the original intensity and the initial colour temperature.
S30 obtains the brightness power curve of each LED from database, according to the brightness power curve of each LED
Obtain node power corresponding with the node brightness of each LED.
In the present embodiment, since the brightness between the LED of each wavelength differs greatly, for example, under same power, green
Brightness > red LED brightness > blue led brightness of LED, therefore, in the corresponding relationship for the brightness and power for establishing each LED
When, reach power required when target value to survey using brightness as target value, to establish the brightness power curve of each LED, and will
The brightness value and performance number of each coordinate points are marked in the brightness power curve of each LED, and by each brightness function of tape label
Rate curve is stored into database.
Further, after the step S20 determines the node brightness of each LED, the bright of each LED is obtained from database
Spend power curve, carry out the detection of coordinate points in the brightness power curve of each LED according to the node brightness of each LED, obtain and
Each most matched coordinate points of node brightness, to obtain each LED corresponding node power, Ye Jigen in most matched coordinate points
According to the brightness power curve acquisition of each LED and the node power of each node brightness existence anduniquess corresponding relationship.
S40 adjusts the actual power of each LED drive circuit according to the node power of each LED, drives in each LED
When the actual power of dynamic circuit reaches the node power of each LED, the projection light source is controlled with the adjusting brightness and institute
It states initial colour temperature and carries out picture projection.
In the present embodiment, a kind of light source of the LED projection of wavelength is controlled by independent LED drive circuit all the way
System is node power required when LED provides up node brightness by each LED drive circuit, if detecting each LED driving electricity
Node power needed for the actual power on road reaches each LED, then the light-source brightness of each LED illumination can reach needed for each LED
Node brightness, and the intrinsic brilliance of the projection light source as made of the modulation of source of each LED illumination can reach required adjusting
Brightness, and then control the projection light source and picture projection is carried out with the adjusting brightness and the initial colour temperature.It is intelligible,
Under conditions of the brightness ratio of each LED is constant, the brightness of each LED can be adjusted by adjusting the power of each LED, to realize
The brightness regulation of projection arrangement, while keeping the colour temperature of projection arrangement under different brightness conditions consistent.
In conclusion it is provided by the invention based on the brightness adjusting method of LED multi-path fixed each LED brightness ratio
Under the conditions of, if the brightness regulation instruction comprising brightness regulation grade is received, first according to the original intensity of projection light source and bright
Degree adjusts the adjusting brightness that grade determines projection light source, and true according to the brightness ratio for adjusting brightness and each LED of projection light source
The node brightness of fixed each LED；Then the brightness power curve that each LED is obtained from database, it is bent according to the brightness power of each LED
Line determines node power corresponding with the node brightness of each LED；And then adjust the section that each LED drive circuit reaches each LED
Point power, and control projection light source and picture projection is carried out with the adjusting brightness and initial colour temperature.This invention ensures that projection arrangement
It keeps light source color temperature consistent when work, and realizes the nonrated brightness control function of projection arrangement, while in detection individual
It plays an important role on the driver of LED performance indicator and projection arrangement.
In one embodiment, as shown in figure 3, the step S30 obtains the brightness power song of each LED from database
Before line, comprising the following steps:
S301 obtains the highest brightness value of each LED.
Preferably, measuring the highest brightness value of each LED respectively, it is divided into several surveys according to the highest brightness value of each LED
Point is measured, using the brightness value of each measurement point as target, the power for adjusting LED to measure the brightness value that brightness reaches each measurement point,
And each performance number is stored into preset data record sheet namely the data record with the brightness value for corresponding to each performance number
Brightness value and performance number form unique corresponding relation in table.
Illustratively, if in single projection arrangement including the LED of three kinds of wavelength, respectively red LED, green LED and indigo plant
Color LED then needs the brightness to each LED in single projection arrangement to measure, and specific measurement method is as follows:
Step 1: the power of the LED of single projection arrangement being controlled in the dark room conditions of standard, uses illumination respectively
Measurement measures the maximum brightness value of red LED, green LED and blue led when each LED works independently, and is recorded as Lr, Lg respectively
And Lb；
Step 2: the maximum brightness value of each LED of measurement being divided into five equal portions, the brightness value of red LED is denoted as respectively
Lr-5, Lr-4, Lr-3, Lr-2 and Lr-1；The brightness value of green LED is denoted as Lg-5, Lg-4, Lg-3, Lg-2 and Lg-1 respectively；It is blue
The brightness value of color LED is denoted as Lb-5, Lb-4, Lb-3, Lb-2 and Lb-1 respectively；
Step 3: by Lr-5, Lr-4, Lr-3, Lr-2, Lr-1 are labeled as the Pyatyi brightness value of red LED, and adjustment is individually thrown
The performance number of the red LED of image device, the Pyatyi brightness value for being allowed to Pyatyi electric current and red LED corresponds, and will reach
To red LED Pyatyi brightness value when performance number store into database, preferably, storing to preset data record sheet
In；
Step 4: by Lg-5, Lg-4, Lg-3, Lg-2, Lg-1 are labeled as the Pyatyi brightness value of green LED, and adjustment is individually thrown
The performance number of the green LED of image device, the Pyatyi brightness value for being allowed to Pyatyi electric current and green LED corresponds, and will reach
To green LED Pyatyi brightness value when performance number store into database, preferably, storing to preset data record sheet
In；
Step 5: by Lb-5, Lb-4, Lb-3, Lb-2, Lb-1 are labeled as the Pyatyi brightness value of blue led, and adjustment is individually thrown
The performance number of the blue led of image device, the Pyatyi brightness value for being allowed to Pyatyi electric current and blue led corresponds, and will reach
To blue led Pyatyi brightness value when performance number store into database, preferably, storing to preset data record sheet
In.
Preferably, in the next steps, if with Lx-5, Lx-4, Lx-3 carry out taking obtaining based on Lx-2, Lx-1
For generating the anchor point of the brightness power curve of each LED, and with Lx-5, Lx-4, Lx-3, to each LED based on Lx-2, Lx-1
Brightness power curve be segmented, then the brightness between two adjacent anchor points and power relation are approximately linear relationship；Wherein,
Lx-5 can characterize Lr-5, Lg-5 and Ld-5.Further, it is assumed that between Lx-5 and Lx-4, between Lx-4 and Lx-3, Lx-3
Each section between Lx-2, between Lx-2 and Lx-1 between Lx-1 and 0 carries out equal portions subdivision again, and available is each
The brightness power curve of LED is more accurate, is advantageously implemented no rank, high accurately brightness regulation.
S302 according to the highest brightness value of each LED and preset takes each LED of a definite value Rule in difference
The brightness value of anchor point.
Wherein, it is described take a definite value rule to refer to and waited according to the highest brightness value of each LED to the brightness value of each LED between
Every take a little, and the pixel selecting quantity of each LED is identical.Intelligible, the pixel selecting quantity of each LED is less than or equal to be associated with each LED
Measurement data quantity；The measurement data may include measurement point number, the corresponding brightness value of measurement point and performance number, with
Each associated measurement data of LED is stored in advance in data record sheet.
S303 obtains each LED in the performance number of each anchor point from preset data record sheet, and according to each institute
The brightness value and the performance number of the LED in each anchor point are stated, determines each LED in the coordinate of each anchor point
Value.
In the present embodiment, each LED is determined after the brightness value of each anchor point in the step S302, from preset number
It is obtained respectively according to table and the associated measurement data of each LED, further, the synchronous detection from the associated measurement data of each LED
And measurement point corresponding with each brightness value is obtained, utilize the available performance number corresponding with each brightness value of measurement point, Jin Ergen
The coordinate value of anchor point is determined according to the brightness value and performance number of existence anduniquess corresponding relationship.
Each LED is input in preset curve model in the coordinate value of each anchor point, and receives institute by S304
State the brightness power curve of each LED of curve model output；Each of the brightness power curve of LED coordinate points
Characterize corresponding relationship of the LED between the node brightness of the coordinate points and node power.
Preferably, curve model gets one group of anchor point of input, (one group of anchor point is for generating the bright of a LED
Spend power curve) coordinate value when, automatic imitation generates the brightness power curve of each LED, and by the brightness value of each coordinate points with
Performance number is marked in the brightness power curve of each LED, to export the brightness power curve of each LED of tape label；Its
In, each of described brightness power curve coordinate points characterize the LED in the node brightness of the coordinate points and node
Corresponding relationship between power.
Illustratively, the brightness power curve of red LED is as shown in Figure 4.The brightness power curve of red LED can in Fig. 4
To be divided into 4 line segments (for linear relationship between the brightness and power of each line segment), the line segment value range difference of each line segment
For [Lr-1, Lr-2], [Lr-2, Lr-3], [Lr-3, Lr-4] and [Lr-4, Lr-5], and in the brightness power curve of red LED
Include 5 anchor points.
In one embodiment, further comprising the steps of after the step S304:
The brightness power curve of each LED is divided into the line segment of preset quantity, according to the line segment both ends
The brightness value and performance number of coordinate points determine the linear relation and line segment value range of each line segment.
Wherein, the line segment value range of the line segment depends on the brightness value of the coordinate points at line segment both ends, and can be with
Line segment is divided according to demand.
Preferably, in the brightness power curve of same LED under line segment value range size the same terms of each line segment,
The brightness power curve of each LED is divided into the line segment of preset quantity, at this point it is possible to by the bright of the coordinate points at line segment both ends
Angle value and performance number are input in preset analysis model, and receive the linear relationship of each line segment of analysis model output
Formula.The analysis model are as follows:
Wherein, if the anchor point at line segment both ends is respectively P1 and P2, x1 is the performance number in P1 anchor point, and y1 is in P1
The brightness value of anchor point, x2 is, in the performance number of P2 anchor point, y2 are the brightness value in P2 anchor point.
In one embodiment, in the brightness power curve based on each LED each line segment linear relation and line segment value
Range uses the linear relation of each line segment in the brightness power curve of each LED after getting the node brightness of each LED
Determine node power corresponding with the node brightness of each LED, it is possible to reduce detection speed improves the efficiency of data acquisition；At this point,
According to the brightness power curve acquisition of each LED node function corresponding with the node brightness of each LED in the step S30
Rate, specifically includes the following steps:
Determine each node brightness in the brightness power curve of each LED according to each node brightness first
The line segment value range；Then it is obtained according to each line segment value range corresponding with each line segment value range described
The linear relation of line segment, and obtain according to the linear relation of each line segment the node brightness of each LED
Corresponding node power.
Preferably, can be by each segment data (line segment relationship comprising each line segment in the brightness power curve of each LED
Formula, line segment value range or line segment number etc.) and each LED brightness power curve curve mark (comprising curve title or song
Line number etc.) associated storage is into database, in the node brightness for getting each LED, from database detection and obtains first
The curve of brightness power curve corresponding with each LED identifies, at this point, identifying according to each curve mark is available to each curve
Associated segment data identifies the line for determining that the node brightness of each LED can be used in associated segment data from each curve
Section relational expression, to obtain node power corresponding with the node brightness of each LED according to line segment relational expression
In another embodiment, line segment division rule can be previously provided in server, it is straight using line segment division rule
Selecting takes anchor point to be segmented brightness power curve, be conducive to training for simulate generate brightness power curve and to its into
The learning model of row segmentation, further comprising the steps of after the step S304:
Firstly, obtaining the brightness value and function of the anchor point in the brightness power curve of each LED, the anchor point
Rate value, and the anchor point is chosen as curve division points according to preset line segment division rule；Then the institute chosen is being used
It states after curve division points are segmented the brightness power curve of each LED, according to the song at each line segment both ends
The brightness value and performance number of line division points determine the linear relation and line segment value range of each line segment.
Wherein, the line segment division rule refers to be chosen according to the specific selection period from the brightness power curve and determine
Site determines the line segment quantity in the brightness power curve as curve division points, and according to the curve division points；It is described
The quantity of curve division points is greater than the line segment quantity in the brightness power curve.
Illustratively, it if after carrying out equally spaced take a little to the brightness value of some LED in the step S302, obtains
Anchor point quantity be 20, then this 20 anchor points can be respectively labeled as P0~P19；If according to cycle T=4 are chosen
P0, P3, P7, P11, P15 and P19 are selected from P0~P19 as curve division points, then between P0~P3, between P3~P7,
Between P7~P11, between P11~P15 between P15~P19 respectively be a line segment.
In one embodiment, as shown in figure 5, the step S40 the following steps are included:
S401 obtains the actual power of each LED drive circuit, detects the actual power of each LED drive circuit
Whether the intrinsic brilliance for whether reaching the node power of each LED, and detecting each LED reaches the target of each LED
Brightness.
In the present embodiment, before control projection light source carries out picture projection, need to detect the reality of each LED drive circuit
Whether border power reaches the node power of each LED demand, so that the node that the brightness of each LED reaches each LED demand is bright
Degree, while whether the intrinsic brilliance that can also detect each LED reaches the node brightness of each LED demand, so that being shone by each LED
The light source hybrid modulation penetrated go out projection light source intrinsic brilliance reach demand adjusting brightness namely projection light source reality it is bright
Difference is close to zero between degree and adjusting brightness, to reach accurately brightness regulation.
S402 reaches the node power of each LED, and each LED in the actual power of each LED drive circuit
Intrinsic brilliance when reaching the object brightness of each LED, control the projection light source with the adjusting brightness and described initial
Colour temperature carries out picture projection.
It is intelligible, since the colour temperature of projection light source depends on the brightness ratio of the light source of each LED illumination, keeping simultaneously
Under the brightness ratio permanence condition of each LED carved, the power by adjusting each LED drive circuit realizes the adjusting of each LED luminance,
Colour temperature during brightness regulation is kept to be consistent simultaneously, at this point, the actual power in each LED drive circuit reaches each
The node power of LED, and when the intrinsic brilliance of each LED reaches the object brightness of each LED, projection light source is automatically controlled to adjust
Brightness and initial colour temperature carry out picture projection.
S403 is not up to the node power of each LED or each described in the actual power of each LED drive circuit
When the intrinsic brilliance of LED is not up to the object brightness of each LED, warning information is issued the user with.
It is intelligible, when the actual power of each LED drive circuit is not up to the node power of each LED, can be set
To duration, node function needed for being still to reach LED more than waiting time in the actual power for detecting a certain paths of LEDs driving circuit
When rate, user's paths of LEDs driving circuit abnormality can be prompted；And it is bright in the target that the intrinsic brilliance of each LED is not up to each LED
Degree can prompt user that current adjusting brightness degree can not be arranged, or control projection light source carries out picture with intrinsic brilliance
Projection.
In one embodiment, as shown in fig. 6, providing a kind of projection arrangement, the projection arrangement includes at least three Lu Butong
The LED of wavelength, and the brightness adjusting method in the projection arrangement and above-described embodiment based on LED multi-path corresponds.It should
Projection arrangement includes initialization module 110, command reception module 120, Parameter analysis module 130 and luminance adjustment module 140.Respectively
Detailed description are as follows for functional module:
Initialization module 110, for obtain projection light source original intensity and initial colour temperature, according to the projection light source
Initial colour temperature determines the brightness ratio of each LED；The projection light source refers to by the light source of the LED illumination of multichannel different wave length
White light made of modulation；
Command reception module 120 is instructed for receiving the brightness regulation comprising brightness regulation grade, according to the projected light
The original intensity in source and the brightness regulation grade determine the adjusting brightness of the projection light source, and according to the projection light source
The brightness ratio of adjusting brightness and each LED determine the node brightness of each LED；
Parameter analysis module 130, for obtaining the brightness power curve of each LED from database, according to each described
The brightness power curve acquisition of LED node power corresponding with the node brightness of each LED；
Luminance adjustment module 140, for adjusting the practical function of each LED drive circuit according to the node power of each LED
Rate, when the actual power of each LED drive circuit reaches the node power of each LED, control the projection light source with
The adjusting brightness and the initial colour temperature carry out picture projection.
In one embodiment, as shown in fig. 7, the projection arrangement further includes with lower module, each functional module is described in detail
It is as follows:
Parameter acquisition module 131, for obtaining the highest brightness value of each LED.
A definite value module 132 is taken, for according to the highest brightness value of each LED and preset taking a definite value Rule
Brightness value of each LED in different anchor points.
Coordinate determining module 133, for obtaining each LED in the function of each anchor point from preset data record sheet
Rate value, and the brightness value and the performance number according to each LED in each anchor point, determine each LED each
The coordinate value of the anchor point.
Curve generation module 134, for each LED to be input to preset curve in the coordinate value of each anchor point
In model, and receive the brightness power curve of each LED of the curve model output；The brightness power curve of the LED
Each of coordinate points characterize corresponding relationship of the LED between the node brightness of the coordinate points and node power.
In one embodiment, the projection arrangement further includes with lower module, and detailed description are as follows for each functional module:
First segmentation module, for the brightness power curve of each LED to be divided into the line segment of preset quantity, according to institute
The brightness value and performance number for stating the coordinate points at line segment both ends determine the linear relation and line segment value of each line segment
Range.
In another embodiment, the projection arrangement further includes with lower module, and detailed description are as follows for each functional module:
Choose module, the anchor point in brightness power curve, the anchor point for obtaining each LED it is bright
Angle value and performance number, and the anchor point is chosen as curve division points according to preset line segment division rule.
Second segmentation module, in the brightness power curve using the curve division points chosen to each LED
After being segmented, according to the brightness value and performance number of the curve division points at each line segment both ends, each line is determined
The linear relation and line segment value range of section.
In one embodiment, first segmentation module or second segmentation module, the Parameter analysis mould are based on
Block 130 includes following submodule, and detailed description are as follows for each sub-function module:
Range determination submodule, for determining each node brightness each LED's according to each node brightness
The line segment value range in brightness power curve.
Power determines submodule, corresponding with each line segment value range for being obtained according to each line segment value range
The line segment the linear relation, and obtain according to the linear relation of each line segment the section of each LED
The corresponding node power of point brightness.
In one embodiment, as shown in figure 8, the luminance adjustment module includes following submodule, each function sub-modules are detailed
Carefully it is described as follows:
Detection sub-module 141 detects each LED driving electricity for obtaining the actual power of each LED drive circuit
Whether the intrinsic brilliance whether actual power on road reaches the node power of each LED, and detect each LED reaches each institute
State the object brightness of LED；
Submodule 142 is projected, for reaching the node function of each LED in the actual power of each LED drive circuit
Rate, and when the intrinsic brilliance of each LED reaches the object brightness of each LED, the projection light source is controlled with the adjusting
Brightness and the initial colour temperature carry out picture projection；
Submodule 143 is alerted, for being not up to the node of each LED in the actual power of each LED drive circuit
When the intrinsic brilliance of power or each LED are not up to the object brightness of each LED, warning information is issued the user with.
Specific about projection arrangement limits the limit that may refer to above for the brightness adjusting method based on LED multi-path
Fixed, details are not described herein.Modules in above-mentioned projection arrangement can fully or partially through software, be mounted in projection arrangement
Or it is arranged in except the projection arrangement but is realized with the hardware of projection arrangement communication connection and combinations thereof.Above-mentioned each module
It can be embedded in the form of hardware or independently of in the processor in projection arrangement, projection arrangement can also be stored in a software form
In memory in, execute the corresponding operation of above modules in order to which processor calls.
In one embodiment, a kind of computer equipment is provided, which can be server, and (server can
To refer to the processor being mounted in projection arrangement, the either multiple servers of the server independently of projection arrangement can also be used
The server cluster of composition is realized), internal structure chart can be as shown in Figure 9.The computer equipment includes total by system
Processor, memory, network interface and the database of line connection.Wherein, the processor of the computer equipment is for providing calculating
And control ability.The memory of the computer equipment includes non-volatile memory medium, built-in storage.The non-volatile memories are situated between
Matter is stored with operating system, computer-readable instruction and database.The built-in storage is the operation in non-volatile memory medium
The operation of system and computer-readable instruction provides environment.To realize a kind of base when the computer-readable instruction is executed by processor
In the brightness adjusting method of LED multi-path.
In one embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory
And the computer-readable instruction that can be run on a processor, processor perform the steps of when executing computer-readable instruction
The original intensity of acquisition projection light source and initial colour temperature, determine each LED according to the initial colour temperature of the projection light source
Brightness ratio；The projection light source refers to the white light as made of the modulation of source of the LED illumination of multichannel different wave length；
It receives the brightness regulation comprising brightness regulation grade to instruct, according to the original intensity of the projection light source and described bright
Degree adjusts the adjusting brightness that grade determines the projection light source, and according to the adjusting brightness of the projection light source and each LED
Brightness ratio determine the node brightness of each LED；
The brightness power curve that each LED is obtained from database, according to the brightness power curve acquisition of each LED
Node power corresponding with the node brightness of each LED；
The actual power that each LED drive circuit is adjusted according to the node power of each LED, in each LED driving electricity
When the actual power on road reaches the node power of each LED, control the projection light source with the adjusting brightness and it is described just
Beginning colour temperature carries out picture projection.
In one embodiment, a kind of computer readable storage medium is provided, computer-readable instruction is stored thereon with,
It is performed the steps of when computer-readable instruction is executed by processor
Initialization module, for obtain projection light source original intensity and initial colour temperature, according to the projection light source just
Beginning colour temperature determines the brightness ratio of each LED；The projection light source refers to by the light source tune of the LED illumination of multichannel different wave length
White light made of system；
Command reception module is instructed for receiving the brightness regulation comprising brightness regulation grade, according to the projection light source
Original intensity and the brightness regulation grade determine the adjusting brightness of the projection light source, and according to the tune of the projection light source
The brightness ratio of section brightness and each LED determine the node brightness of each LED；
Parameter analysis module, for obtaining the brightness power curve of each LED from database, according to each LED
Brightness power curve acquisition node power corresponding with the node brightness of each LED；
Luminance adjustment module, for adjusting the actual power of each LED drive circuit according to the node power of each LED,
When the actual power of each LED drive circuit reaches the node power of each LED, the projection light source is controlled with described
It adjusts brightness and the initial colour temperature carries out picture projection.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer-readable instruction, it is non-volatile that the computer-readable instruction can be stored in one
Property computer-readable storage medium in, the computer-readable instruction is when being executed, it may include as above-mentioned each method embodiment
Process.Wherein, to memory, storage, database or other media used in each embodiment provided by the present invention
Any reference may each comprise non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory
(ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.It is volatile
Property memory may include random access memory (RAM) or external cache.By way of illustration and not limitation, RAM
It is available in many forms, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram
(DDRSDRAM), enhanced SDRAM (ESDRAM), synchronization link DRAM (SLDRAM), the direct RAM of memory bus (RDRAM),
Direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit or module division progress for example, in practical application, can according to need and by above-mentioned function distribution by difference
Functional unit or module complete, i.e., the internal structure of described device is divided into different functional unit or module, with complete
All or part of function described above.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of brightness adjusting method based on LED multi-path characterized by comprising
The original intensity of acquisition projection light source and initial colour temperature, determine that each LED's is bright according to the initial colour temperature of the projection light source
Degree ratio；The projection light source refers to the white light as made of the modulation of source of the LED illumination of multichannel different wave length；
It receives the brightness regulation comprising brightness regulation grade to instruct, according to the original intensity of the projection light source and the brightness tune
Section grade determines the adjusting brightness of the projection light source, and adjusts the bright of brightness and each LED according to the projection light source
Spend the node brightness of each LED of ratio-dependent；
The brightness power curve that each LED is obtained from database, according to the brightness power curve acquisition of each LED and respectively
The corresponding node power of node brightness of the LED；
The actual power that each LED drive circuit is adjusted according to the node power of each LED, in each LED drive circuit
When actual power reaches the node power of each LED, the projection light source is controlled with the adjusting brightness and the initial color
Temperature carries out picture projection.
2. as described in claim 1 based on the brightness adjusting method of LED multi-path, which is characterized in that described to be obtained from database
Before the brightness power curve for taking each LED, comprising:
Obtain the highest brightness value of each LED；
According to the highest brightness value of each LED and preset take each LED of a definite value Rule in different anchor points
Brightness value；
Each LED is obtained in the performance number of each anchor point from preset data record sheet, and according to each LED each
The brightness value of the anchor point and the performance number determine each LED in the coordinate value of each anchor point；
Each LED is input in preset curve model in the coordinate value of each anchor point, and receives the curvilinear mold
The brightness power curve of each LED of type output；Each of the brightness power curve of LED coordinate points characterize
Corresponding relationship of the LED between the node brightness of the coordinate points and node power.
3. as claimed in claim 2 based on the brightness adjusting method of LED multi-path, which is characterized in that described that each LED exists
The coordinate value of each anchor point is input in preset curve model, and receives each LED of the curve model output
Brightness power curve after, comprising:
The brightness power curve of each LED is divided into the line segment of preset quantity, according to the coordinate at the line segment both ends
The brightness value and performance number of point, determine the linear relation and line segment value range of each line segment；
The brightness power curve acquisition according to each LED node power corresponding with the node brightness of each LED, packet
It includes:
The line segment of each node brightness in the brightness power curve of each LED is determined according to each node brightness
Value range；
The linear pass of the line segment corresponding with each line segment value range is obtained according to each line segment value range
It is formula, and obtains the corresponding node power of node brightness of each LED according to the linear relation of each line segment.
4. as claimed in claim 2 based on the brightness adjusting method of LED multi-path, which is characterized in that described that each LED exists
The coordinate value of each anchor point is input in preset curve model, and receives each LED of the curve model output
Brightness power curve after, comprising:
Obtain the brightness value and performance number of the anchor point in the brightness power curve of each LED, the anchor point, and root
The anchor point is chosen as curve division points according to preset line segment division rule；
After the curve division points using selection are segmented the brightness power curve of each LED, according to each institute
The brightness value and performance number for stating the curve division points at line segment both ends, determine the linear relation and line segment of each line segment
Value range.
5. as described in claim 1 based on the brightness adjusting method of LED multi-path, which is characterized in that described according to each LED
Node power adjust the actual power of each LED drive circuit, reach each described in the actual power of each LED drive circuit
When the node power of LED, the projection light source is controlled with the adjusting brightness and the initial colour temperature and carries out picture projection, packet
It includes:
The actual power of each LED drive circuit is obtained, whether the actual power for detecting each LED drive circuit reaches each
The node power of the LED, and whether the intrinsic brilliance for detecting each LED reaches the object brightness of each LED；
Reach the node power of each LED in the actual power of each LED drive circuit, and the reality of each LED is bright
When degree reaches the object brightness of each LED, controls the projection light source and carried out with the adjusting brightness and the initial colour temperature
Picture projection；
The node power of each LED or the reality of each LED are not up in the actual power of each LED drive circuit
When brightness is not up to the object brightness of each LED, warning information is issued the user with.
6. a kind of projection arrangement, which is characterized in that the projection arrangement includes the LED of the above different wave length of two-way, comprising:
Initialization module, for obtain projection light source original intensity and initial colour temperature, according to the initial color of the projection light source
Temperature determines the brightness ratio of each LED；The projection light source refer to by the modulation of source of the LED illumination of multichannel different wave length and
At white light；
Command reception module is instructed for receiving the brightness regulation comprising brightness regulation grade, according to the first of the projection light source
Beginning brightness and the brightness regulation grade determine the adjusting brightness of the projection light source, and bright according to the adjusting of the projection light source
The brightness ratio of degree and each LED determine the node brightness of each LED；
Parameter analysis module, for obtaining the brightness power curve of each LED from database, according to the bright of each LED
It spends power curve and obtains node power corresponding with the node brightness of each LED；
Luminance adjustment module, for adjusting the actual power of each LED drive circuit according to the node power of each LED, each
When the actual power of the LED drive circuit reaches the node power of each LED, the projection light source is controlled with the adjusting
Brightness and the initial colour temperature carry out picture projection.
7. projection arrangement as claimed in claim 6, which is characterized in that further include:
Parameter acquisition module, for obtaining the highest brightness value of each LED；
A definite value module is taken, for according to the highest brightness value of each LED and preset taking a definite value Rule each described
Brightness value of the LED in different anchor points；
Coordinate determining module, for obtaining each LED in the performance number of each anchor point from preset data record sheet, and
The brightness value and the performance number according to each LED in each anchor point determine each LED in each positioning
The coordinate value of point；
Curve generation module, for each LED to be input in preset curve model in the coordinate value of each anchor point,
And receive the brightness power curve of each LED of the curve model output；It is each in the brightness power curve of the LED
A coordinate points characterize corresponding relationship of the LED between the node brightness of the coordinate points and node power.
8. projection arrangement as claimed in claim 6, which is characterized in that the luminance adjustment module includes:
Detection sub-module detects the reality of each LED drive circuit for obtaining the actual power of each LED drive circuit
Whether the intrinsic brilliance whether border power reaches the node power of each LED, and detect each LED reaches each LED
Object brightness；
Submodule is projected, for reaching the node power of each LED in the actual power of each LED drive circuit, and it is each
When the intrinsic brilliance of the LED reaches the object brightness of each LED, the projection light source is controlled with the adjusting brightness and institute
It states initial colour temperature and carries out picture projection；
Submodule is alerted, for being not up to the node power of each LED in the actual power of each LED drive circuit, or
When the intrinsic brilliance of each LED is not up to the object brightness of each LED, warning information is issued the user with.
9. a kind of computer equipment, including memory, processor and storage are in the memory and can be in the processor
The computer-readable instruction of upper operation, which is characterized in that the processor is realized when executing the computer-readable instruction as weighed
Benefit requires the brightness adjusting method described in 1 to 5 any one based on LED multi-path.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer-readable instruction, special
Sign is, realizes when the computer-readable instruction is executed by processor and is based on multichannel as described in any one of claim 1 to 5
The brightness adjusting method of LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910211864.0A CN109889808A (en) | 2019-03-20 | 2019-03-20 | Brightness adjusting method, device, equipment and storage medium based on LED multi-path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910211864.0A CN109889808A (en) | 2019-03-20 | 2019-03-20 | Brightness adjusting method, device, equipment and storage medium based on LED multi-path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109889808A true CN109889808A (en) | 2019-06-14 |
Family
ID=66933222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910211864.0A Pending CN109889808A (en) | 2019-03-20 | 2019-03-20 | Brightness adjusting method, device, equipment and storage medium based on LED multi-path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109889808A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384114A (en) * | 2007-09-07 | 2009-03-11 | 比亚迪股份有限公司 | Light source control system and light source box |
| CN101801141A (en) * | 2010-03-25 | 2010-08-11 | 东华大学 | Method for acquiring high color rendering white light with adjustable color temperature from combination of cool white, red, yellow and green LEDs |
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
| CN108663882A (en) * | 2018-04-16 | 2018-10-16 | 苏州佳世达光电有限公司 | Light-source system and the method for generating the light beam of light combination with target brightness value |
-
2019
- 2019-03-20 CN CN201910211864.0A patent/CN109889808A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384114A (en) * | 2007-09-07 | 2009-03-11 | 比亚迪股份有限公司 | Light source control system and light source box |
| CN101801141A (en) * | 2010-03-25 | 2010-08-11 | 东华大学 | Method for acquiring high color rendering white light with adjustable color temperature from combination of cool white, red, yellow and green LEDs |
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
| CN108663882A (en) * | 2018-04-16 | 2018-10-16 | 苏州佳世达光电有限公司 | Light-source system and the method for generating the light beam of light combination with target brightness value |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101480106B (en) | Device for generating light | |
| CN101840063B (en) | Projection apparatus having the light source having contemplated the influence of heat generation and projection method | |
| CN105025231A (en) | Photographing method with projection light source and photographing device | |
| CN109496042B (en) | Light control method and device based on camera shooting assembly and light control equipment | |
| CN204046868U (en) | A kind of lighting device | |
| EP3278204B1 (en) | Color picker | |
| CN104918372B (en) | Lighting device and its control method and control system | |
| US10021752B2 (en) | Lighting method and lighting device | |
| CN102726049A (en) | Controlling light sources for colour sequential image displaying | |
| CN103543581A (en) | Projector and light emission control method in the projector | |
| US20240107642A1 (en) | Lighting systems and methods | |
| JP2014509435A (en) | Lighting control system | |
| CN111836442B (en) | Control method and system for light during projection | |
| CN109889808A (en) | Brightness adjusting method, device, equipment and storage medium based on LED multi-path | |
| CN109410813A (en) | A kind of method of adjustment and device of touch-control blank | |
| CN116679486B (en) | Liquid crystal display screen color homogenization method and device based on Mini-LED backlight | |
| CN105915810A (en) | Control method for electronic equipment and electronic equipment | |
| CN109429031A (en) | Infrared monitoring device, corresponding infrared light method of adjustment and storage medium | |
| CN203595885U (en) | Multifunctional digital studio system | |
| CN113129814B (en) | Color correction method and system applied to virtual production of LED (light-emitting diode) ring screen | |
| CN112040596B (en) | Virtual space light control method, computer readable storage medium and system | |
| CN108458262B (en) | Lighting system and method for integrating multiple light effects | |
| JP6626841B2 (en) | Device with camera and screen | |
| CN113473093A (en) | Projector and image projection method | |
| CN117424970B (en) | Light control method and device, mobile terminal and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190614 |