CN112562580B - LED display screen control method and system - Google Patents
LED display screen control method and system Download PDFInfo
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- 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]
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Abstract
The application relates to a control method and a system for an LED display screen, relating to the technical field of display screens and comprising the following steps: receiving and storing information data to be displayed; dividing corresponding display areas for the information data based on the LED panel; analyzing and storing the display effect realized by the information data in the corresponding display area; acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel; searching and acquiring at least one display effect which is the same as or similar to the display deviation effect and corresponding information data; and displaying the acquired information data in the damaged area or the whole display area of the LED panel. The frequency of dismantling and replacing the LED module is low, and the maintenance cost of the LED display screen is reduced.
Description
Technical Field
The application relates to the technical field of LED display screens, in particular to a control method and a control system of an LED display screen.
Background
Referring to fig. 1, the LED display screen is an information display device, which is composed of small LED modules, each LED module is a dot matrix display module composed of a plurality of uniformly arranged light emitting diodes, and is suitable for displaying text and image information, and different images can be displayed by changing the chromaticity of different light emitting diodes.
In the related art, the brightness of the LED lamps has a certain decay period, and the light-emitting characteristics of the LED lamps are not completely the same, so that after the LED lamps are used for a long time, the chromaticity of the LED lamps on the same LED module will be different, which affects the normal display of image information, i.e. the LED module is damaged. Generally, when the chromaticity of the LED module changes, the LED display screen is usually maintained by replacing the LED module.
To above-mentioned correlation technique, in actual operation, the work of LED module dismantlement change, need take off the LED module that damages, install new LED module and need carry out a series of installation and debugging, whole process is comparatively loaded down with trivial details, the maintenance cost height and the inefficiency of LED show screen, if can follow the angle of normal control, reduce the influence of the LED module after the damage to whole LED show screen work effect, then can reduce the frequency that the LED module dismantlement was changed, reduce the maintenance cost.
Disclosure of Invention
In order to solve the problems of high maintenance cost and low efficiency of the LED display screen, the first object of the present application is to provide a control method of the LED display screen, which covers the defects of the LED module by adjusting the display content of the LED module, and reduces the influence of the damaged LED module on the working effect of the whole LED display screen. Based on the control method, the second purpose of the present application is to provide a control system for an LED display screen. The specific scheme is as follows:
in one aspect, a method for controlling an LED display screen comprises the following steps:
receiving and storing information data to be displayed;
dividing corresponding display areas for the information data based on the LED panel; analyzing the information data and the display and storing the display effect of the information data in the corresponding display area;
acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel;
searching and acquiring at least one display effect which is the same as or similar to the display deviation effect and corresponding information data;
and displaying the acquired information data in the damaged area or the whole display area of the LED panel.
By adopting the technical scheme, the whole control method can search the damaged area of the LED panel and select the information data capable of covering the display effect of the damaged area to display according to the damaged area, so that the influence of the damaged LED module on the working effect of the whole LED display screen is reduced in the aspect of control, the maintenance efficiency of the LED display screen is reduced, and the LED display screen has good practicability.
Further, the information data to be displayed comprises image information;
the LED panel-based display area for dividing the information data comprises:
distributing and storing address information for each LED lamp in the LED panel;
and splitting and coding the information data to be displayed, and distributing corresponding display address information for each split information data.
By adopting the technical scheme, the singlechip is used for distributing the address information of each LED lamp on the LED panel to obtain the address code of each LED lamp, the information data is split and coded, and the codes correspond to the address codes through programs, so that the information data can be clearly divided into corresponding display areas on the LED panel.
Further, the analyzing and storing the information data to achieve the display effect in the corresponding display area includes:
establishing and storing an association relation between each LED lamp and the light emitting characteristic thereof;
calculating address information corresponding to the display area;
and searching and obtaining the light emitting characteristics of the LED lamp corresponding to the address information.
By adopting the technical scheme, the LED lamp has the advantages that the LED lamp can emit light to obtain the display effect realized in the display area, and the effect of displaying the chromaticity of the LED lamp can be analyzed conveniently.
Further, the display effect comprises the brightness and the chromaticity of the LED lamp;
the method for acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel comprises the following steps:
calculating based on a correlation algorithm to obtain and store standard chromatic values and brightness values generated by the LED lamps corresponding to the standard information data;
the LED lamp characteristic detection device is used for collecting chromatic values and brightness values of all areas on the LED panel after standard information data are input;
and comparing the acquired chromatic value and the acquired brightness value with the standard chromatic value and the standard brightness value to obtain the display deviation effect of each display area.
By adopting the technical scheme, the acquired chromatic values and the acquired brightness values are compared with the standard chromatic values and the standard brightness values, the display deviation effect of each display area is obtained, and the display deviation effect is rapidly displayed.
Further, the searching and obtaining at least one display effect the same as or similar to the display deviation effect and corresponding information data includes:
the information data includes a plurality of image information;
storing the display effect of the image information in each display area on the LED panel;
and selecting and outputting image information with the same or similar display effect as the display deviation effect in the set display area based on the display deviation effect of the damaged area.
By adopting the technical scheme, proper image information is selected to be displayed in the display area with the display deviation, so that the operation of replacing the display area with the display deviation is reduced, and the maintenance cost of the LED display screen is reduced.
In another aspect, the present invention further provides a control system for an LED display screen, which may include:
the information acquisition module comprises an information receiving end and an output end and is used for receiving and outputting information data to be displayed, wherein the information data to be displayed comprises image information;
the information storage module comprises a memory, is configured to be in data connection with the information acquisition module and is used for receiving and storing the information data;
the display area division module comprises a data processor, is configured to be in data connection with the information storage module and is used for carrying out data processing on the information data and the addresses of the LED lamps;
the display effect analysis module is configured to be in data connection with the memory and used for analyzing the light-emitting characteristics of the LED lamps;
the deviation effect acquisition module is configured to be in signal connection with the display effect analysis module and used for acquiring displayed deviation effect data of each LED lamp;
the comparison matching module comprises a data receiving end and a data output end and is used for receiving the deviation effect data and the information data to be displayed, comparing the deviation effect data with the information data to be displayed and outputting comparison result data;
the output display module is configured to be in data connection with a data output end of the comparison matching module, receive the comparison result data and display information data corresponding to the deviation effect based on the deviation effect data;
the corresponding information data is represented by selecting red information data of the region displayed by the corresponding display region for display when the display effect of the display region is reddish;
or;
and the corresponding information data is represented by selecting the information data of which the region displayed by the corresponding display region is green for displaying when the display effect of the display region is green.
By adopting the technical scheme, the LED display screen control system is realized based on the LED display screen control method, the LED display screen control system analyzes the light-emitting characteristics of each LED lamp in the LED panel, screens out the damaged display area, and covers the display deviation effect of the damaged display area based on the display effect of the data to be displayed, so that the maintenance cost of the LED display screen is reduced.
Furthermore, the information acquisition module comprises an LED panel information acquisition board, the LED panel information acquisition board is in signal connection with a receiving antenna, and the receiving antenna receives the image information.
By adopting the technical scheme, the information data are received by the aid of the receiving antenna, and the received information data are input into the LED panel information acquisition board, so that the information data required to be displayed on the LED display screen can be acquired conveniently.
Further, the information receiving and processing module comprises an information memory, the information memory is in signal connection with the LED panel information acquisition board, and the image information is stored in the information memory.
By adopting the technical scheme, the collected information data are stored in the memory, a plurality of information data needing to be displayed are stored, and when the information data are required to be screened and matched, the information data only need to be called out from the memory, so that the information data can be conveniently stored and searched.
Furthermore, the display area division module, the display effect analysis module, the deviation effect acquisition module, the comparison matching module and the output display module are integrated in the LED master control board, the LED master control board receives the display deviation effect, analyzes the display deviation data, screens and displays the information data matched with the deviation data, and controls the LED panel to display the information data.
By adopting the technical scheme, the LED master control board analyzes and calculates the display deviation data in the display area, compares the information data of the damaged display area, displays the information data which are in line with the display area of the damaged area, and is beneficial to realizing the display maintenance of the LED display screen in the control aspect.
In summary, the present application includes at least one of the following beneficial technical effects:
the whole control method can search the damaged area of the LED panel and select information data capable of covering the display effect of the damaged area to display according to the damaged area, so that the influence of the damaged LED module on the working effect of the whole LED display screen is reduced in the aspect of control, the maintenance efficiency of the LED display screen is reduced, and the LED display screen has good practicability;
the LED master control board analyzes and calculates the display deviation data in the display area, compares the information data of the damaged display area, displays the information data which are in line with the display area of the damaged area, and is beneficial to realizing the display maintenance of the LED display screen in the control aspect.
Drawings
FIG. 1 is an axial view of the present embodiment, which mainly shows the overall structure of the LED display screen;
FIG. 2 is a block diagram of steps of a method for controlling an LED display screen according to the present embodiment;
FIG. 3 is a block diagram of a step of the present embodiment mainly embodying the substep of S200;
FIG. 4 is a block diagram of a step of the present embodiment mainly embodying the substep of S300;
FIG. 5 is a block diagram of a step of the present embodiment mainly embodying the substep of S400;
FIG. 6 is a block diagram of a step of the present embodiment mainly embodying the substep of S500;
fig. 7 is a block diagram of a control system mainly embodying the LED display screen in the present embodiment.
Reference numerals: 1. a display screen; 2. an information acquisition module; 21. an LED panel information acquisition board; 22. a receiving antenna; 3. an information storage module; 31. a memory; 4. a display area dividing module; 41. a data processor; 5. a display effect analysis module; 6. a deviation effect obtaining module; 7. a comparison matching module; 8. an output display module; 9. LED master control board.
Detailed Description
In the related art, after the LED display screen 1 displays information data for a long time, the chromaticity of each LED module will be different, and even a part of LED lamps will be damaged, which affects the normal display of image information. Generally, when the chromaticity of the LED module changes, the LED display screen 1 is often maintained by replacing the LED module, which is more frequent and expensive. Therefore, the invention provides a control method and a control system for an LED display screen.
Referring to fig. 2, the control method of the LED display screen mainly includes the following steps:
s100, receiving and storing information data to be displayed;
s200, dividing corresponding display areas for the information data based on the LED panel; analyzing and storing the information data S300 in the display effect realized by the information data in the corresponding display area;
s400, acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel;
s500, searching and obtaining at least one display effect which is the same as or similar to the display deviation effect and corresponding information data;
s600, displaying the acquired information data in the damaged area or the whole display area of the LED panel.
It should be noted that the above steps are only preferred execution sequences, and in the specific implementation process, some steps can be exchanged without affecting the overall implementation effect.
In the embodiment of the present invention, in step S100, the information acquisition module 2 built in the system is used to receive the information data, and the information storage module 3 built in or externally connected to the system is used to store the information data. The information data comprises visual information data for embodying the display effect. For example, the image information may be decomposed into a plurality of static images or text information.
Referring to fig. 3, in the step s200, dividing the corresponding display area for the information data based on the LED panel further includes:
s201, distributing and storing address information for each LED lamp in the LED panel;
s202, splitting and coding information data to be displayed;
and S203, distributing corresponding display address information for each split information data.
In step S201, the address code of each LED lamp can be obtained based on the related technology, and the address code is obtained by giving different numbers to each LED lamp and its display effect in the LED display screen 1, and converting the address code into a binary code, which is convenient for the data processor 41 in the system to process and store the data.
In the step S202, the information data to be displayed is split and encoded, which specifically includes compressing the image information, for example, pixels of the image information are 100000, and only 10000 LED lamps are on the LED panel, the pixels of the image information need to be compressed, 10 pixels are compressed into 1 pixel, and the 1 pixel corresponds to one LED lamp.
In the compression process, after the compression is calculated according to a set algorithm, the compressed information data are coded, so that the information data are conveniently associated with the address of the LED lamp for storage. After the above steps S201 and S202, step S203 includes: distributing corresponding address information for displaying for each split information data, specifically, distributing the address code of each LED lamp in the data memory 31 and the compressed information data, wherein the LED lamps with different addresses correspond to one information data, so that the information data displayed by the corresponding LED lamp can be conveniently found out according to the address code.
Referring to fig. 4, in step S300, analyzing and storing the information data to the corresponding display area to achieve the display effect further includes the following sub-steps:
s301, establishing and storing an association relation between each LED lamp and the light emitting characteristics of the LED lamps;
s302, calculating address information corresponding to the display area;
and S303, searching and acquiring the light emitting characteristics of the LED lamp corresponding to the address information.
In step S301, the association relationship between each LED lamp and the light emitting characteristic thereof is established and stored, specifically including that different LED lamps generate different chromaticities under the same voltage due to different light emitting characteristics of the LED lamps, so that the chromaticities displayed by each LED lamp on the LED panel can be counted and stored;
in the above steps S302 and S203, calculating the address information corresponding to the display area and searching and obtaining the light emitting characteristics of the LED lamps corresponding to the address information specifically include storing the light emitting characteristics of each LED lamp in the data processor 41, and calculating the display effect of each LED lamp in the display area.
Referring to fig. 5, in step S400, the display effect mainly includes the brightness and chromaticity of the LED lamp;
the display effect achieved by acquiring, analyzing and storing the information data in the corresponding display area comprises the following steps: s401, calculating based on a correlation algorithm to obtain and store standard chromatic values and brightness values of the LED lamps, which are generated corresponding to standard information data;
s402, collecting chromatic values and brightness values of all areas on the LED panel after inputting standard information data by using an LED lamp characteristic detection device;
and S403, comparing the acquired chromatic value and the acquired brightness value with the standard chromatic value and the standard brightness value to obtain the display deviation effect of each display area.
Preferably, the colorimetric instrument can be used for acquiring chromatic values and brightness values of all areas on the LED panel after the standard information data are input, and comparing the chromatic values and the brightness values with chromatic values and brightness values of the standard LED lamp to find out the chromaticity or brightness display deviation of all display areas.
Referring to fig. 6, in step s500, at least one display effect the same as or similar to the display deviation effect and corresponding information data are searched and obtained, including:
s501, storing the display effect of a plurality of image information in each display area on the LED panel;
and S502, displaying the deviation effect of the bad area, and selecting and outputting the image information with the same or similar display effect as the display deviation effect in the set display area. In summary, in step S600, the obtained information data is displayed in the damaged area or the whole display area of the LED panel, including displaying the information data capable of hiding the display deviation effect on the LED display screen 1.
For example: in actual work, when display deviation occurs in a part of display areas at a detection part, for example, the chromaticity of the display areas is red, at the moment, image information with the same or similar display deviation effect is screened and matched, and the influence of damage to the part of the display areas of the LED display screen 1 on the whole display effect is reduced through control.
Based on the description of the embodiment of the control method of the LED display screen, the embodiment of the invention also discloses a control system of the LED display screen, which comprises the following steps:
referring to fig. 7, the LED display screen control system includes an information acquisition module 2 and an information storage module 3. The information acquisition module 2 is in data connection with the information storage module 3. The information acquisition module 2 comprises an information receiving end, an information output end and an LED panel information acquisition board 21, the LED panel information acquisition board 21 is in signal connection with a receiving antenna 22, and the receiving antenna 22 receives the image signal of the display data. The information storage module 3 comprises a memory 31, the memory 31 is in signal connection with the LED panel information acquisition board 21, and the image signal of the display data is stored in the memory 31.
An LED master control board 9 is installed in the LED display screen 1, a display area dividing module 4, a display effect analysis module 5, a deviation effect acquisition module 6, a comparison matching module 7 and an output display module 8 are integrated on the LED master control board 9.
The display area dividing module 4 comprises a data processor 41 which is in data connection with the information storage module 3 and performs data processing on the information data and the addresses of the LED lamps. And the input end of the display effect analysis module 5 is in data connection with the memory 31 and is used for analyzing the light-emitting characteristics of each LED lamp. And the signal input end of the deviation effect acquisition module 6 is in signal connection with the display effect analysis module 5 and is used for acquiring the displayed deviation effect of each LED lamp. And the comparison matching module 7 comprises a data receiving end and a data output end and is used for receiving the deviation effect data and the information data to be displayed, comparing the deviation effect data with the information data to be displayed and outputting comparison result data. And the output display module 8 is configured to compare the data output end data connection of the matching module 7, receive the comparison result data and display the information data corresponding to the deviation effect based on the deviation effect data.
It should be noted that, for example: the corresponding information data is represented by selecting the information data of which the region shown by the corresponding display region is red (green) for displaying when the display effect of the display region is red (green).
The implementation principle of the embodiment of the application is as follows: aiming at information data needing to be displayed, firstly, receiving and storing the information data; dividing the LED panel into display areas; then, based on the display deviation effect of the damaged area of the LED panel, searching a display effect which is the same as or similar to the display deviation effect and corresponding information data; finally, displaying the information data in the damaged area or the whole display area of the LED panel; the whole method can search the damaged area of the LED panel, can select proper information data to display according to the damaged area, reduces the influence of the damaged LED module on the working effect of the whole LED display screen 1 in the aspect of control, and reduces the maintenance efficiency of the LED display screen 1.
The control system is implemented based on the whole control method, and the information acquisition module 2 receives information data to be displayed; the information storage module 3 receives and stores the information data; the display area division module 4 performs data processing on the information data and the addresses of the LED lamps; the display effect analysis module 5 analyzes the light-emitting characteristics of each LED lamp; the deviation effect acquisition module 6 acquires the displayed deviation effect data of each LED lamp; the comparison matching module 7 compares the deviation effect data with the information data to be displayed and outputs comparison result data; and finally, the output display module 8 selects the information data which can cover the display deviation effect generated in the damaged display area to display based on the information data corresponding to the deviation effect displayed by the deviation effect data.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A control method of an LED display screen is characterized by comprising the following steps: the method comprises the following steps:
receiving and storing information data to be displayed;
dividing corresponding display areas for the information data based on the LED panel;
analyzing the information data and storing the display effect of the information data in the corresponding display area;
acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel;
searching and obtaining at least one display effect which is the same as or similar to the display deviation effect and corresponding information data;
displaying the acquired information data in a damaged area or the whole display area of the LED panel;
the analyzing and storing the information data to achieve the display effect in the corresponding display area comprises:
establishing and storing an association relation between each LED lamp and the light emitting characteristic thereof;
calculating address information corresponding to the display area;
searching and acquiring the light emitting characteristics of the LED lamp corresponding to the address information;
the display effect comprises the brightness and the chromaticity of the LED lamp;
the method for acquiring, analyzing and storing the display deviation effect of the damaged area of the LED panel comprises the following steps:
calculating based on a correlation algorithm to obtain and store standard chromatic values and brightness values generated by the LED lamps corresponding to the standard information data;
collecting chromatic values and brightness values of all areas on the LED panel after standard information data are input by using an LED lamp characteristic detection device;
comparing the acquired chromatic value and the acquired brightness value with the standard chromatic value and the standard brightness value to obtain the display deviation effect of each display area;
the searching and obtaining at least one display effect the same as or similar to the display deviation effect and corresponding information data comprises:
the information data includes a plurality of image information;
storing the display effect of the image information in each display area on the LED panel;
and selecting and outputting image information with the same or similar display effect as the display deviation effect in the display area based on the display deviation effect of the damaged area.
2. The LED display screen control method according to claim 1, wherein:
the information data to be displayed comprises image information;
the dividing of the corresponding display area for the information data based on the LED panel includes:
distributing and storing address information for each LED lamp in the LED panel;
and splitting and coding the information data to be displayed, and distributing corresponding display address information for each split information data.
3. An LED display screen control system, comprising:
the information acquisition module (2) comprises an information receiving end and an output end and is used for receiving and outputting information data to be displayed, wherein the information data to be displayed comprises image information;
the information storage module (3) comprises a memory (31) which is configured to be in data connection with the information acquisition module (2) and is used for receiving and storing the information data;
the display area dividing module (4) comprises a data processor (41) which is configured to be in data connection with the information storage module (3) and is used for carrying out data processing on the information data and the addresses of the LED lamps;
the display effect analysis module (5) is configured to be in data connection with the memory (31) and is used for analyzing the light-emitting characteristics of the LED lamps;
the deviation effect acquisition module (6) is configured to be in signal connection with the display effect analysis module (5) and is used for acquiring displayed deviation effect data of each LED lamp;
the comparison matching module (7) comprises a data receiving end and a data output end, and is used for receiving the deviation effect data and the information data to be displayed, comparing the deviation effect data with the information data to be displayed, and outputting comparison result data;
the output display module (8) is configured to be in data connection with a data output end of the comparison matching module (7), receive the comparison result data and display information data corresponding to the deviation effect based on the deviation effect data;
the corresponding information data is represented by selecting red information data of the region displayed by the corresponding display region for display when the display effect of the display region is reddish;
or;
and the corresponding information data is represented as information data which is displayed in green in the area corresponding to the display area when the display effect of the display area is green.
4. The LED display screen control system according to claim 3, wherein the information acquisition module (2) comprises an LED panel information acquisition board (21), the LED panel information acquisition board (21) is in signal connection with a receiving antenna (22), and the receiving antenna (22) receives the image information.
5. The LED display screen control system according to claim 3, wherein the memory (31) is in signal connection with the LED panel information acquisition board (21), and the image information is stored in the memory (31).
6. The LED display screen control system of claim 3, wherein: install LED in LED show screen (1) and always control board (9), show regional division module (4), show effect analysis module (5), deviation effect acquisition module (6), contrast matching module (7) and output display module (8) integration are in LED always controls board (9), LED always controls board (9) and is used for receiving show deviation effect, analyzes show deviation data, filters and show deviation data assorted information data to it is right to control the LED panel information data show.
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| CN112014071A (en) * | 2020-08-27 | 2020-12-01 | 深圳市洲明科技股份有限公司 | Method, system, equipment and storage medium for identifying fault bad points of LED display screen |
| CN112073482A (en) * | 2020-08-27 | 2020-12-11 | 山东中图软件技术有限公司 | LED display screen management and control system, platform and method |
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