CN116543694A - LED display screen debugging system and debugging method - Google Patents

LED display screen debugging system and debugging method Download PDF

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Publication number
CN116543694A
CN116543694A CN202310827822.6A CN202310827822A CN116543694A CN 116543694 A CN116543694 A CN 116543694A CN 202310827822 A CN202310827822 A CN 202310827822A CN 116543694 A CN116543694 A CN 116543694A
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debugging
display screen
led display
color
value
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CN202310827822.6A
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CN116543694B (en
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张常华
朱正辉
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Guangdong Baolun Electronics Co ltd
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Guangdong Baolun Electronics Co ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Debugging And Monitoring (AREA)

Abstract

The invention relates to the technical field of LED display screen debugging, in particular to an LED display screen debugging system and a debugging method. According to the invention, the debugging system is built, the LED display screen is connected with the debugging platform through the signal receiving and transmitting system, the debugging program is transmitted to the LED display screen, the result of the response of the LED display screen is collected through the information collecting system, the LED display screen is regulated according to the collected information, only personnel are required to be connected with the components, no professional debugger is required, and the LED display screen is regulated independently through the debugging platform, so that the debugging time is greatly shortened.

Description

LED display screen debugging system and debugging method
Technical Field
The invention relates to the technical field of LED display screen debugging, in particular to an LED display screen debugging system and an LED display screen debugging method.
Background
Compared with other display screens, the LED display screen has the advantages of high brightness, good color rendition and high contrast ratio, so that the LED display screen is widely applied to outdoor large screens.
The debugging of the LED display screen is a process of determining the position of each LED module after all the LED modules are assembled on the screen body, the traditional LED display screen debugging is performed by adopting manual field debugging, a debugger performs network connection on the LED display screen and a control room on the installation field of the LED display screen, and the position of each LED module is determined by controlling different lighting states of the LED display screen, so that the debugging method is that the debugger performs naked eye observation on the field to judge the lighting state of each LED module, and obvious defects exist: firstly, debugging personnel need to reach the installation site of each LED display screen for debugging, which requires a great deal of labor cost; secondly, debugging personnel need to visually observe the lighting state of the LED module, the manual operation steps are more, the efficiency is very low, the debugging process of a display screen with 2K resolution usually needs 20-30 minutes, and errors are easy to occur in the observation process; again, this debugging scheme requires a high level of expertise for the debugger, which requires a high level of expertise for the debugger.
The current LED display screen debugging depends on manual field adjustment, and the special performance of personnel is high and the debugging speed is low.
Disclosure of Invention
Therefore, the invention provides a system and a method for debugging an LED display screen, which are used for solving the problems that the current LED display screen debugging in the prior art depends on manual field adjustment, and the personnel specialization is high and the debugging speed is low.
In order to achieve the above object, the present invention provides an LED display screen debugging system, comprising,
the information acquisition system is used for acquiring image information of the LED display screen;
the debugging platform is internally provided with an LED display screen debugging program and can adjust the LED display screen according to the program;
the signal receiving and transmitting system is connected with the LED display screen to be debugged and is connected with the debugging platform;
the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, acquires image data of the LED display screen when responding to the program through the information acquisition system, judges whether the LED display screen is regulated according to the acquired image data, and the debugging program comprises a color difference debugging program, a single-point debugging program and a response debugging program; and when the color difference debugging program is operated, the debugging platform adjusts the LED display screen according to the single color display condition and the whole color display condition.
Further, the debugging platform is connected with the LED display screen through the signal receiving and transmitting system and lowers the debugging program to the LED display screen,
the information acquisition system acquires image information of the LED display screen in real time, transmits the acquired image information to the debugging platform, and the debugging platform analyzes the acquired image information and adjusts the LED display screen area which is inconsistent with a debugging program;
for a debugged LED display screen, the debugged LED display screen consists of n LED point positions, a point position information matrix A0, A0= { A1, A2..an } of the debugged platform is arranged in the debugged platform, wherein A1 is first LED point position information, A2 is second LED point position information, A..an is nth LED point position information, and for any LED point position information Ai, ai= { xi, yi }, wherein xi is transverse point position information of An ith LED point position, and yi is longitudinal point position information of the ith LED point position.
Further, when the LED display screen runs the color difference debugging program, the LED display screen sequentially displays a plurality of standard colors, the information acquisition system acquires a display result of the LED display screen and transmits the detection result to the debugging platform, and the debugging platform determines whether to adjust the LED display screen according to the acquired detection result, wherein the standard colors comprise a first standard color C1, a second standard color C2, and a k standard color Ck.
Further, when the LED display screen runs the color difference debugging program, the analysis of the detection result by the debugging platform comprises single-color analysis and integral analysis, the color development capability of the LED display screen for a certain standard color is determined through single-color analysis, and the integral color development capability of the LED display screen is determined through integral analysis.
Further, when the LED display screen displays the h standard color Ch, h=1, 2..k, the information acquisition system acquires the actual display color Chs of the LED display screen, the debugging platform compares the actual display color Chs with the standard color Ch, acquires RGB values { Rh, gh, bh } of the standard color Ch, acquires RGB values { Rhs, ghs, bhs } of the actual display color Chs, calculates difference absolute values Δrh between Rh and Rhs, difference absolute values Δbh between Gh and Ghs, difference absolute values Δbh between Bh and Bhs, Δrh= Rh-Rhs }, Δgh= Gh-Ghs, Δbh= l Bh-Bhs, calculates an evaluation difference value Ph between the actual display color Chs and the standard color Ch, sets,
Ph=△Rh×α1+△Gh×α2+△Bh×α3
wherein α1 is a calculated compensation parameter of the difference absolute value Δrh to the calculated evaluation difference value Ph, α2 is a calculated compensation parameter of the difference absolute value Δgh to the calculated evaluation difference value Ph, and α3 is a calculated compensation parameter of the difference absolute value Δbh to the calculated evaluation difference value Ph;
a single color evaluation difference standard value Pz is arranged in the debugging system,
if Ph is larger than Pz, the debugging system judges that the display of the LED display screen for the h standard color is unqualified and needs to be adjusted;
if Ph is less than or equal to Pz, the debugging system judges that the LED display screen is qualified for the display of the h standard color.
Further, for different standard colors, the debugging system judges whether the LED display screen is qualified for displaying different standard colors one by one, integrates the related data of the standard colors which are unqualified for displaying, and determines an adjusting scheme;
the debugging system integrates unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is smaller than the R value of the standard color, the R value display capacity of the LED display screen is integrally increased, and the increasing amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is larger than the R value of the standard color, the R value display capacity of the LED display screen is reduced as a whole, and the reduction amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in the RGB values of all the unqualified actual display colors is not only larger than the R value of the standard color, but also smaller than the R value of the standard color, the debugging system calculates the average value of the difference values between the R value in the RGB values of all the actual display colors and the R value of the standard color, and increases or decreases the R value display capacity by taking the average value of the difference values as the value.
Further, for all standard color displays being qualified, the debugging system calculates an overall color evaluation deviation value Z, z= (p1+p2+.+ Pk) x beta, wherein beta is the overall color evaluation deviation value calculation compensation parameter, an overall color evaluation standard value Zz is set in the debugging system,
if Z is larger than Zz, judging that the whole color deviation of the LED display screen is unqualified, and debugging is needed;
if Z is less than or equal to Zz, judging that the overall color deviation of the LED display screen is qualified;
when the integral color deviation of the LED display screen is judged to be unqualified, the debugging system sequentially analyzes the integral independent deviation of the R value, the G value and the B value of the LED display screen and adjusts the integral independent deviation.
Further, when the single-point debugging program is run, the debugging platform acquires the whole color information of the LED display screen, identifies, judges whether the LED display screen is in the whole state, if so, records the LED display screen as a difference point, acquires the point information of the difference point, if so, numbers the difference point, marks the difference point as a first difference point B1 and a second difference point B2, and the first difference point Bm,
for any difference point Bj, j=1, 2,..m, the debugging platform obtains the difference value of the integral color of the debugging platform and the LED display screen, including obtaining single color difference values one by one and integrating, when the LED display screen displays the h standard color Ch, the information acquisition system obtains the actual display color Chs of the LED display screen, obtains the actual display color Chj of the difference point Bj, the debugging platform compares the actual display color Chs with the actual display color Chj, the debugging platform obtains RGB values { Rhj, ghj, bhj } of the standard color Chj, the RGB values { Rhs, ghs, bhs } of the actual display color Chs are obtained, the debugging platform calculates the difference DeltaRhj between Rhj and Rhs, the difference DeltaGhj between Ghj and Ghs, the difference DeltaDelta Bhj between Bhj and Bhs, delta Rhj = Rhj-Rhs, delta Ghj = Ghj-Ghs, delta Bhj =5237-Bhj, the debugging platform calculates the R value overall deviation Delta5237, the B value overall deviation Delta5237, the G value overall deviation Delta5237 of the difference point Bj, and the display capability of the R value, the G value and the B value of the difference point Bj is adjusted according to the calculated overall deviation values.
Further, when the response debugging program is operated, the debugging platform controls each LED point to lighten one by one according to the serial number sequence, the information acquisition system acquires the lightening time interval of each point, if the lightening time interval of two adjacent points is larger than the standard interval, the fact that the response of the next point in the two adjacent points is insufficient is judged, the response speed of the next point is determined by the debugging platform, and in actual imaging, the debugging platform adjusts the point display program according to the response speed of the next point.
The invention also discloses a method for debugging the LED display screen, which comprises the steps of,
step S1, a debugging system is built, and an LED display screen is connected with a debugging platform through a signal receiving and transmitting system;
step S2, the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, and the information acquisition system acquires image data of the LED display screen in response to the program;
step S3, the debugging platform analyzes the acquired image data and adjusts the LED display screen according to an analysis result;
in the step S2, the debugging program includes a color difference debugging program, a single-point debugging program, and a response debugging program; in the step S3, when the color difference debugging program is run, the debugging platform adjusts the LED display screen according to the single color display condition and the overall color display condition.
Compared with the prior art, the invention has the beneficial effects that the LED display screen is connected with the debugging platform through the signal receiving and transmitting system by setting up the debugging system, the debugging program is transmitted to the LED display screen, the result of the response of the LED display screen is acquired through the information acquisition system, the LED display screen is regulated according to the acquired information, only personnel are required to be connected with the components, no professional debugger is required, and the LED display screen is regulated independently through the debugging platform, so that the debugging time is greatly shortened.
Furthermore, the invention directly collects the image information of the LED display screen in the process of running the debugging program through the high-definition camera device, can intuitively reflect the overall color development condition and the local color development condition of the LED display screen through directly obtaining the image information, and can rapidly determine the LED point positions of the problems in the debugging process through sequencing and marking the LED point positions, thereby carrying out targeted adjustment and further shortening the debugging time of the screen.
Further, through setting up monochromatic analysis and whole analysis, the colour display ability of LED display screen can be more accurate obtain to accurate colour to the LED display screen is adjusted.
Further, for single color, whether the single color is displayed qualified is judged by comparing red, green and blue information one by one and overall grading, so that a foundation is laid for color adjustment of the LED display screen in the later period.
Further, when a certain color in the displayed red, green and blue colors is larger or smaller as a whole, the display capability of the color is insufficient, so that the color development capability of the color is correspondingly reduced or increased, meanwhile, during adjustment, a value with smaller deviation is selected as an adjustment interval, and then iterative stepwise adjustment is performed, so that the adjustment is more intelligent, and the proper color development capability can be found more quickly.
Further, when all standard color displays are qualified, calculating the overall color evaluation deviation value of the LED display screen and performing fine adjustment, so that the color development of the LED display screen is more accurate.
Drawings
FIG. 1 is a schematic diagram of a system for debugging an LED display screen in an embodiment;
fig. 2 is a flowchart of a method for debugging an LED display screen in an embodiment.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an LED display screen debugging system in an embodiment.
The invention discloses a debugging system of an LED display screen, which comprises,
the information acquisition system is used for acquiring image information of the LED display screen;
the debugging platform is internally provided with an LED display screen debugging program and can adjust the LED display screen according to the program;
the signal receiving and transmitting system is connected with the LED display screen to be debugged and is connected with the debugging platform;
the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, acquires image data of the LED display screen when responding to the program through the information acquisition system, judges whether the LED display screen is regulated according to the acquired image data, and the debugging program comprises a color difference debugging program, a single-point debugging program and a response debugging program; and when the color difference debugging program is operated, the debugging platform adjusts the LED display screen according to the single color display condition and the whole color display condition.
According to the invention, the debugging system is built, the LED display screen is connected with the debugging platform through the signal receiving and transmitting system, the debugging program is transmitted to the LED display screen, the result of the response of the LED display screen is collected through the information collecting system, the LED display screen is regulated according to the collected information, only personnel are required to be connected with the components, no professional debugger is required, and the LED display screen is regulated independently through the debugging platform, so that the debugging time is greatly shortened.
Specifically, the debugging platform is connected with the LED display screen through the signal receiving and transmitting system, and the debugging program is downloaded to the LED display screen.
The information acquisition system is an image information acquisition system, and particularly is a high-definition camera device.
The information acquisition system acquires image information of the LED display screen in real time, transmits the acquired image information to the debugging platform, and the debugging platform analyzes the acquired image information and adjusts the LED display screen area which is inconsistent with a debugging program.
The debugging program comprises a color difference debugging program and a single-point debugging program, and responds to the debugging program.
For a debugged LED display screen, the debugged LED display screen consists of n LED point positions, a point position information matrix A0, A0= { A1, A2..an } of the debugged platform is arranged in the debugged platform, wherein A1 is first LED point position information, A2 is second LED point position information, A..an is nth LED point position information, and for any LED point position information Ai, ai= { xi, yi }, wherein xi is transverse point position information of An ith LED point position, and yi is longitudinal point position information of the ith LED point position.
The invention directly collects the image information of the LED display screen in the process of running the debugging program through the high-definition camera device, can intuitively reflect the overall color development condition and the local color development condition of the LED display screen through directly obtaining the image information, and can rapidly determine the LED point positions of the problem in the debugging process by sequencing and marking the LED point positions, thereby carrying out targeted adjustment and further shortening the screen debugging time.
Specifically, when the LED display screen runs the color difference debugging program, the LED display screen sequentially displays a plurality of standard colors, the information acquisition system acquires the display result of the LED display screen and transmits the detection result to the debugging platform, and the debugging platform judges whether to adjust the LED display screen according to the acquired detection result.
The standard colors include a first standard color C1, a second standard color C2.
When the LED display screen runs the color difference debugging program, the analysis of the detection result by the debugging platform comprises single-color analysis and integral analysis, the color development capability of the LED display screen to a certain standard color is determined through single-color analysis, and the integral color development capability of the LED display screen is determined through integral analysis.
Through setting up monochromatic analysis and whole analysis, the colour display ability of acquisition LED display screen that can be more accurate to accurate adjusts the colour of LED display screen.
The overall analysis is that when the LED display screen displays the h standard color Ch, h=1, 2..k, the information acquisition system acquires the actual display color Chs of the LED display screen, the debugging platform compares the actual display color Chs with the standard color Ch, the debugging platform acquires RGB values { Rh, gh, bh } of the standard color Ch, acquires RGB values { Rhs, ghs, bhs } of the actual display color Chs, the debugging platform calculates absolute values of differences Δrh between Rh and Rhs, absolute values of differences Δgh between Gh and Ghs, absolute values of differences Δbh between Bh and Bhs, Δrh= -Rhs |, Δgh= g h-Ghs |, Δbh= |bh-Bhs |, the debugging platform calculates an evaluation difference value Ph between the actual display color Chs and the standard color Ch, and sets,
Ph=△Rh×α1+△Gh×α2+△Bh×α3
wherein α1 is a calculated compensation parameter of the difference absolute value Δrh to the calculated evaluation difference value Ph, α2 is a calculated compensation parameter of the difference absolute value Δgh to the calculated evaluation difference value Ph, and α3 is a calculated compensation parameter of the difference absolute value Δbh to the calculated evaluation difference value Ph;
a single color evaluation difference standard value Pz is arranged in the debugging system,
if Ph is larger than Pz, the debugging system judges that the display of the LED display screen for the h standard color is unqualified and needs to be adjusted;
if Ph is less than or equal to Pz, the debugging system judges that the LED display screen is qualified for the display of the h standard color.
For single color, the red, green and blue information of the single color is compared one by one, and whether the single color is displayed qualified is judged through integral scoring, so that a foundation is laid for color adjustment of the LED display screen in the later stage.
For different standard colors, the debugging system judges whether the LED display screen is qualified for displaying different standard colors one by one, integrates the related data of the standard colors which are unqualified for displaying, and determines an adjusting scheme;
the debugging system integrates unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is smaller than the R value of the standard color, the R value display capacity of the LED display screen is integrally increased, and the increasing amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is larger than the R value of the standard color, the R value display capacity of the LED display screen is reduced as a whole, and the reduction amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in the RGB values of all the unqualified actual display colors is not only larger than the R value of the standard color, but also smaller than the R value of the standard color, the debugging system calculates the average value of the difference values between the R value in the RGB values of all the actual display colors and the R value of the standard color, and increases or decreases the R value display capacity by taking the average value of the difference values as the value.
For the adjustment of the G value and the B value of the LED display screen, reference is made to the adjustment of the R value.
When a certain color in the displayed red, green and blue colors is larger or smaller as a whole, the display capability of the color is insufficient, so that the color development capability of the color is correspondingly reduced or increased, meanwhile, when the color is regulated, a value with smaller deviation is selected as a regulating interval, and then iterative gradual regulation is carried out, so that the regulation is more intelligent, and the proper color development capability can be quickly found.
For all standard color displays being qualified, the debugging system calculates an overall color evaluation deviation value Z, Z= (P1+P2+ &.+ Pk) x beta, wherein beta is the overall color evaluation deviation value calculation compensation parameter, an overall color evaluation standard value Zz is arranged in the debugging system,
if Z is larger than Zz, judging that the whole color deviation of the LED display screen is unqualified, and debugging is needed;
if Z is less than or equal to Zz, judging that the overall color deviation of the LED display screen is qualified;
when the integral color deviation of the LED display screen is judged to be unqualified, the debugging system sequentially analyzes the integral independent deviation of the R value, the G value and the B value of the LED display screen and adjusts the integral independent deviation.
When all standard colors are displayed qualified, calculating the overall color evaluation deviation value of the LED display screen and performing fine adjustment, so that the color development is more accurate.
When the single-point debugging program is operated, the debugging platform acquires the whole color information of the LED display screen, identifies, judges whether the LED display screen has difference between the point position and the whole color information, records the relevant point position as a difference point position if the relevant point position exists, acquires the point position information of the difference point position, numbers the difference point position if a plurality of difference point positions exist, marks the difference point position as a first difference point position B1 and a second difference point position B2, and the m-th difference point position Bm,
for any difference point Bj, j=1, 2,..m, the debugging platform obtains the difference value of the integral color of the debugging platform and the LED display screen, including obtaining single color difference values one by one and integrating, when the LED display screen displays the h standard color Ch, the information acquisition system obtains the actual display color Chs of the LED display screen, obtains the actual display color Chj of the difference point Bj, the debugging platform compares the actual display color Chs with the actual display color Chj, the debugging platform obtains RGB values { Rhj, ghj, bhj } of the standard color Chj, the RGB values { Rhs, ghs, bhs } of the actual display color Chs are obtained, the debugging platform calculates the difference DeltaRhj between Rhj and Rhs, the difference DeltaGhj between Ghj and Ghs, the difference DeltaDelta Bhj between Bhj and Bhs, delta Rhj = Rhj-Rhs, delta Ghj = Ghj-Ghs, delta Bhj =5237-Bhj, the debugging platform calculates the R value overall deviation Delta5237, the B value overall deviation Delta5237, the G value overall deviation Delta5237 of the difference point Bj, and the display capability of the R value, the G value and the B value of the difference point Bj is adjusted according to the calculated overall deviation values.
△Rzj=，△Gzj=，△Bzj=。
When a single point is regulated, when a certain color in the displayed red, green and blue colors is larger or smaller as a whole, the display capability of the color is not enough, so that the color development capability of the color is correspondingly reduced or increased.
When the response debugging program is operated, the debugging platform controls each LED point to lighten one by one according to the serial number sequence, the information acquisition system acquires the lightening time interval of each point, if the lightening time interval of two adjacent points is larger than the standard interval, the fact that the response of the next point in the two adjacent points is insufficient is judged, the debugging platform determines the response speed of the next point, and in actual imaging, the debugging platform adjusts the point display program according to the response speed of the next point.
Referring to fig. 2, fig. 2 is a flowchart of a method for debugging an LED display screen according to an embodiment.
The invention also discloses a method for debugging the LED display screen, which comprises the steps of,
step S1, a debugging system is built, and an LED display screen is connected with a debugging platform through a signal receiving and transmitting system;
step S2, the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, and the information acquisition system acquires image data of the LED display screen in response to the program;
step S3, the debugging platform analyzes the acquired image data and adjusts the LED display screen according to an analysis result;
in the step S2, the debugging program includes a color difference debugging program, a single-point debugging program, and a response debugging program; in the step S3, when the color difference debugging program is run, the debugging platform adjusts the LED display screen according to the single color display condition and the overall color display condition.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.

Claims (10)

1. An LED display screen debugging system is characterized by comprising,
the information acquisition system is used for acquiring image information of the LED display screen;
the debugging platform is internally provided with an LED display screen debugging program and can adjust the LED display screen according to the program;
the signal receiving and transmitting system is connected with the LED display screen to be debugged and is connected with the debugging platform;
the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, acquires image data of the LED display screen when responding to the program through the information acquisition system, judges whether the LED display screen is regulated according to the acquired image data, and the debugging program comprises a color difference debugging program, a single-point debugging program and a response debugging program; and when the color difference debugging program is operated, the debugging platform adjusts the LED display screen according to the single color display condition and the whole color display condition.
2. The LED display screen debugging system of claim 1, wherein the LED display screen debugging system comprises a plurality of LED display screens,
the debugging platform is connected with the LED display screen through the signal receiving and transmitting system and lowers the debugging program to the LED display screen,
the information acquisition system acquires image information of the LED display screen in real time, transmits the acquired image information to the debugging platform, and the debugging platform analyzes the acquired image information and adjusts the LED display screen area which is inconsistent with a debugging program;
for a debugged LED display screen, the debugged LED display screen consists of n LED point positions, a point position information matrix A0, A0= { A1, A2..an } of the debugged platform is arranged in the debugged platform, wherein A1 is first LED point position information, A2 is second LED point position information, A..an is nth LED point position information, and for any LED point position information Ai, ai= { xi, yi }, wherein xi is transverse point position information of An ith LED point position, and yi is longitudinal point position information of the ith LED point position.
3. The LED display screen debugging system according to claim 2, wherein when the LED display screen runs the color difference debugging program, the LED display screen sequentially displays a plurality of standard colors, the information acquisition system acquires a display result of the LED display screen and transmits the detection result to the debugging platform, and the debugging platform determines whether to adjust the LED display screen according to the acquired detection result, wherein the standard colors include a first standard color C1, a second standard color C2, and a third standard color Ck.
4. The LED display screen debugging system of claim 3, wherein when the LED display screen runs the color difference debugging program, the analysis of the detection result by the debugging platform comprises a single color analysis and an overall analysis, the color development capability of the LED display screen for a certain standard color is determined by the single color analysis, and the overall color development capability of the LED display screen is determined by the overall analysis.
5. The LED display screen debugging system according to claim 4, wherein when the LED display screen displays the h-th standard color Ch, h = 1, 2..k, the information collecting system obtains an actual display color Chs of the LED display screen, the debugging platform compares the actual display color Chs with the standard color Ch, the debugging platform obtains RGB values { Rh, gh, bh } of the standard color Ch, obtains RGB values { Rhs, ghs, bhs } of the actual display color Chs, the debugging platform calculates difference absolute values Δrh between Rh and Rhs, difference absolute values Δgh between Gh and Ghs, difference absolute values Δbh between Bh and Bhs, Δrh= -Rhs, Δgh= -gh= -Ghs, Δbh= -Bh-Bhs }, the debugging platform calculates a difference value Ph between the actual display color Chs and the standard color Ch, sets,
Ph=△Rh×α1+△Gh×α2+△Bh×α3
wherein α1 is a calculated compensation parameter of the difference absolute value Δrh to the calculated evaluation difference value Ph, α2 is a calculated compensation parameter of the difference absolute value Δgh to the calculated evaluation difference value Ph, and α3 is a calculated compensation parameter of the difference absolute value Δbh to the calculated evaluation difference value Ph;
a single color evaluation difference standard value Pz is arranged in the debugging system,
if Ph is larger than Pz, the debugging system judges that the display of the LED display screen for the h standard color is unqualified and needs to be adjusted;
if Ph is less than or equal to Pz, the debugging system judges that the LED display screen is qualified for the display of the h standard color.
6. The LED display screen debugging system of claim 5, wherein for different standard colors, the debugging system determines one by one whether the LED display screen is acceptable for different standard colors, integrates the standard color related data that is unacceptable for display, and determines an adjustment scheme;
the debugging system integrates unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is smaller than the R value of the standard color, the R value display capacity of the LED display screen is integrally increased, and the increasing amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in all the RGB values of the unqualified actual display colors is larger than the R value of the standard color, the R value display capacity of the LED display screen is reduced as a whole, and the reduction amplitude is the same as the minimum value in the absolute value of the difference value of the R value in the unqualified actual display colors;
if the R value in the RGB values of all the unqualified actual display colors is not only larger than the R value of the standard color, but also smaller than the R value of the standard color, the debugging system calculates the average value of the difference values between the R value in the RGB values of all the actual display colors and the R value of the standard color, and increases or decreases the R value display capacity by taking the average value of the difference values as the value.
7. The LED display screen debugging system according to claim 6, wherein the debugging system calculates the overall color evaluation deviation value Z, z= (p1+p2+.+ Pk) x beta, wherein beta is the overall color evaluation deviation value calculation compensation parameter, the overall color evaluation standard value Zz is set in the debugging system,
if Z is larger than Zz, judging that the whole color deviation of the LED display screen is unqualified, and debugging is needed;
if Z is less than or equal to Zz, judging that the overall color deviation of the LED display screen is qualified;
when the integral color deviation of the LED display screen is judged to be unqualified, the debugging system sequentially analyzes the integral independent deviation of the R value, the G value and the B value of the LED display screen and adjusts the integral independent deviation.
8. The LED display screen debugging system of claim 7, wherein when the single-point debugging program is run, the debugging platform obtains the overall color information of the LED display screen, and recognizes, and determines whether there is a difference between the point location and the overall color information in the overall LED display screen, if there is a related point location, records it as a difference point location, obtains the point location information of the difference point location, if there are a plurality of difference points, numbers the difference points, marks as a first difference point location B1, a second difference point location B2,..mth difference point location Bm,
for any difference point Bj, j=1, 2,..m, the debugging platform obtains the difference value of the integral color of the debugging platform and the LED display screen, including obtaining single color difference values one by one and integrating, when the LED display screen displays the h standard color Ch, the information acquisition system obtains the actual display color Chs of the LED display screen, obtains the actual display color Chj of the difference point Bj, the debugging platform compares the actual display color Chs with the actual display color Chj, the debugging platform obtains RGB values { Rhj, ghj, bhj } of the standard color Chj, the RGB values { Rhs, ghs, bhs } of the actual display color Chs are obtained, the debugging platform calculates the difference DeltaRhj between Rhj and Rhs, the difference DeltaGhj between Ghj and Ghs, the difference DeltaDelta Bhj between Bhj and Bhs, delta Rhj = Rhj-Rhs, delta Ghj = Ghj-Ghs, delta Bhj =5237-Bhj, the debugging platform calculates the R value overall deviation Delta5237, the B value overall deviation Delta5237, the G value overall deviation Delta5237 of the difference point Bj, and the display capability of the R value, the G value and the B value of the difference point Bj is adjusted according to the calculated overall deviation values.
9. The LED display screen debugging system according to claim 2, wherein when the response debugging program is run, the debugging platform controls each LED point location to be lit one by one according to the sequence of numbers, the information acquisition system acquires the lighting time interval of each point location, if the lighting time interval of two adjacent point locations is greater than the standard interval, it is determined that the response of the next point location in the two adjacent point locations is insufficient, the debugging platform determines the response speed of the next point location, and in actual imaging, the debugging platform adjusts the point location display program according to the response speed of the next point location.
10. An LED display screen debugging method based on the LED display screen debugging system as claimed in any one of claims 1-9, which is characterized by comprising the following steps,
step S1, a debugging system is built, and an LED display screen is connected with a debugging platform through a signal receiving and transmitting system;
step S2, the debugging platform sends a debugging program to the LED display screen through the signal receiving and transmitting system, and the information acquisition system acquires image data of the LED display screen in response to the program;
step S3, the debugging platform analyzes the acquired image data and adjusts the LED display screen according to an analysis result;
in the step S2, the debugging program includes a color difference debugging program, a single-point debugging program, and a response debugging program; in the step S3, when the color difference debugging program is run, the debugging platform adjusts the LED display screen according to the single color display condition and the overall color display condition.
CN202310827822.6A 2023-07-07 2023-07-07 LED display screen debugging system and debugging method Active CN116543694B (en)

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