CN107239252B - Automatic screen connection method for LED display screen - Google Patents
Automatic screen connection method for LED display screen Download PDFInfo
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- CN107239252B CN107239252B CN201710407060.9A CN201710407060A CN107239252B CN 107239252 B CN107239252 B CN 107239252B CN 201710407060 A CN201710407060 A CN 201710407060A CN 107239252 B CN107239252 B CN 107239252B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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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]
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- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
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Abstract
The invention discloses an automatic screen connecting method for an LED display screen, which comprises the steps of electrifying, initializing and displaying one-dimensional coordinate digital information of the LED display screen; acquiring initialized one-dimensional coordinate digital image information; determining the total number N of the LED display screen box bodies; determining the number of rows or columns of the LED display screen; cutting the display screen initialization one-dimensional coordinate digital image into N parts according to the row and column arrangement position condition of the box body by a specific image processing technology; respectively identifying content information of the N cut images; determining the physical position information of the display screen box body corresponding to the display content of each cut image; and sending the physical position information of each display screen box body to the LED display screen control system. The automatic screen connecting method for the LED display screen solves the problem that the cost is too high due to the fact that hardware such as a transmitter and a receiver need to be additionally added for automatic screen connecting of the existing LED display screen.
Description
Technical Field
The invention relates to the field of small-space LED display screens, in particular to an automatic screen connecting method for an LED display screen.
Background
The LED display screen is formed by splicing a plurality of unit box bodies, and the box bodies are connected in series through signal cables and power cables to form a whole. In the assembling and splicing process of the LED display screen, the position of each box body in the screen needs to be determined in the control system, and the control system can send the content of a certain area in the display picture to the box body at the corresponding position, so that the whole display picture can be normal.
Therefore, the determination of the screen connection parameters, namely the coordinate position of the box body in the screen, is the setting work which must be completed for assembling the spliced screen. Conventionally, after the LED display screens are assembled and spliced, the number of rows and columns of the boxes in the LED screens and the connection order of the boxes at different coordinate positions of the screens are manually set in control software in a computer according to the actual connection order of the signal cables. The setting of the box body screen connecting parameters is basically to establish the corresponding relation between the one-dimensional serial coordinates connected with the box body cables and the two-dimensional coordinates of the display screen. The traditional screen connecting mode has low automation degree and low efficiency.
Patent No. CN201210284879.8 discloses an intelligent display screen. However, the display screen needs complex external hardware devices (including a display mode editor and an input end thereof, a module distribution editor and an input end thereof) for completing the screen connection setting, can only be selected from a plurality of preset connection modes, can only support a limited preset resolution type, and needs to manually input part of parameters in the setting process. The scheme has low automation degree and high cost.
Patent No. CN201620138787.2 discloses an LED box and LED display screen system, can realize automatic even screen setting. However, this solution requires a signal transceiver to be disposed in each of four directions of each housing, which increases hardware cost and system complexity.
Patent No. CN200780041745.0 discloses an apparatus and method for realizing automatic screen connection of display module. However, this method requires a signal transceiver in each of four directions of each housing, which increases hardware cost and system complexity.
Therefore, how to provide an efficient automatic screen connecting method for an LED display screen is a technical problem that needs to be solved by those skilled in the art at present, and is capable of ensuring that the accuracy of information display of the LED display screen can be ensured even when the LED boxes are not installed one by one according to a predetermined sequence while ensuring the simplicity and convenience of splicing the LED boxes and circuit construction, and without increasing transmitters and receivers, and reducing cost.
Disclosure of Invention
In view of the above, the invention provides an automatic screen connection method for an LED display screen, so that the splicing and the connection of an LED display screen box are simple and convenient, the installation rate of the LED display screen box is increased, the display correctness of the LED display screen box is ensured, and the extra hardware cost is not increased.
In order to achieve the above object, according to the present invention, there is provided an automatic screen connection method for an LED display screen,
it includes:
electrifying to initialize and display one-dimensional coordinate digital information of the LED display screen;
acquiring initialized one-dimensional coordinate digital image information of a display screen;
determining the total number N of the LED display screen box bodies spliced with each other;
determining the number of rows or columns of the LED display screens spliced with each other;
cutting the acquired display screen initialization one-dimensional coordinate digital image into N parts according to the row and column arrangement position condition of the box body by a specific image processing technology;
respectively identifying content information of the N cut images;
determining the physical position information of the display screen box body corresponding to the display content of each cut image;
and sending the physical position information of each box body to a system to complete the screen connection of the LED display screen.
Further, the initialized one-dimensional coordinate digital image information is number information from number 1 to number N.
Further, the initialized one-dimensional coordinate digital image information is a bar code or a two-dimensional code of a unique serial number of each box body.
Further, the initialized one-dimensional coordinate digital image information of the display screen is obtained through photographing of the mobile terminal.
Further, the initialized one-dimensional coordinate digital image information of the display screen is acquired through shooting by a camera.
Further, the mobile terminal cuts the acquired initialized one-dimensional coordinate digital image information into N blocks according to the row and column arrangement position condition of the box body, identifies the cut digital image information of each block, and sends the identified cut image information of each block back to the LED display screen control system.
Further, the mobile terminal sends the acquired initialized one-dimensional coordinate digital image information back to the LED display screen control system, the LED display screen control system cuts the image information into N blocks according to the row and column arrangement position condition of the box body, and the cut digital image information of each block is identified.
Further, the initialized one-dimensional coordinate digital image information acquired by the camera is transmitted back to an LED display screen control system, the image information is cut into N blocks in the LED display screen control system according to the row and column arrangement position condition of the box body, and each cut digital image information is identified.
By applying the technical scheme of the invention, the one-dimensional coordinate digital information corresponding to each LED display screen box body which is displayed by electrifying and initializing the LED display screen is the actual physical position information of each LED display screen box body in splicing. By identifying the digital image information of the power-on initialization corresponding to each box body and then sending the digital image information of the power-on initialization corresponding to each box body to the LED display screen control system, the LED display screen control system can obtain the actual physical position of each spliced box body, namely the system determines the connection mode of the LED display screen box bodies, and the connection of the LED display screen is completed. The automatic screen connecting method of the LED display screen can enable the display screen to display correct image information no matter how the installation sequence of the display screen box body is. The automatic LED display screen connecting method can improve the assembling and line plugging rates of the LED display screen box body, meanwhile ensure the accuracy and the integrity of the displayed information, reduce the cost of the automatic LED display screen connecting, and solve the problem of overhigh cost caused by the fact that hardware such as a transmitter and a receiver is additionally added to the automatic LED display screen connecting.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an automatic screen connection method for an LED display screen according to the present invention;
fig. 2 is a block diagram of an implementation of an LED display screen according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and fig. 2, the present invention provides an automatic screen connection method for an LED display screen, which includes the following steps:
step S01: electrifying to initialize and display one-dimensional coordinate digital information of the LED display screen;
and the LED display screen is electrified after the box body is spliced and connected. Electrifying to display an initial picture of the LED display screen, wherein in the initial picture of the display screen, each box body unit of the display screen displays unique identification information, and the identification information can be numbers, letters, one-dimensional bar codes, two-dimensional codes or any graphic coding form; the identification information, namely the one-dimensional coordinate digital information, can be distributed to each box body by the LED display screen control system, and can also be generated by each box body according to the own unique product code.
Optimally, each box body displays unique digital information which represents one-dimensional signal cable connection relation coordinates.
After the box bodies are spliced and connected, the LED display screen is powered on, each box body on the LED display screen can display unique identification information, and as shown in fig. 2, once the spliced LED display screen is powered on, each box body respectively displays one of numbers from 1 to 12. The LED display screen of the embodiment can also display the bar code or the two-dimensional code of the unique serial number of each box body after being electrified.
Step S02: acquiring display screen initialization one-dimensional coordinate digital image information;
after step S01, the digital image information of the initialized one-dimensional signal cable connection relationship coordinates is already displayed on the LED display screen, and at this time, the digital image information of the initialized one-dimensional signal cable connection relationship coordinates of the display screen may be acquired through the mobile terminal or the camera.
Step S03: determining the total number of the LED display screen box bodies spliced with each other;
according to the fact that the addresses of the LED display screen box body units are different, the LED display screen control system can determine the total number N of the LED display screen box bodies in advance by calculating the number of the addresses of the LED display screen box bodies.
Optimally, when the total number of the box bodies of the display screen cannot be predetermined by the LED display screen control system, the total number N of the box bodies in the LED display screen may be automatically identified by analyzing the initial picture of the display screen obtained in step S02 through a specific image algorithm.
Step S04: determining the number of rows or columns of the LED display screens spliced with each other;
after S02S 03, the number of rows or columns of the tiled LED display is determined by a specific image recognition algorithm, such as horizontal pixel integration of the image.
Step S05: cutting the acquired display screen initialization one-dimensional digital coordinate image into N parts;
and cutting the initialized one-dimensional digital coordinate image of the LED display screen acquired in the step 02 into N parts, wherein N is the number of the spliced boxes.
As shown in fig. 2, the number N of cases spliced to each other is 12. The initialized one-dimensional digital coordinate image of the LED display screen can be acquired through a mobile terminal or a camera. When a camera is used for acquiring the initialized one-dimensional digital coordinate image of the LED display screen, the acquired initialized one-dimensional digital coordinate image of the LED display screen is transmitted back to the LED display screen control system, and in the LED display screen control system, the acquired image is divided into N parts according to the row number and the arrangement condition of the LED display screen box body through an image processing algorithm, wherein N is the number of the box body. When the mobile terminal is used for acquiring the initialized one-dimensional digital coordinate image of the LED display screen, the acquired image can be transmitted back to the LED display screen system and then divided according to the method, or the acquired initialized one-dimensional digital coordinate image of the LED display screen can be divided into N parts according to the row number and the column number of the box bodies of the LED display screen and the arrangement condition of the box bodies of the LED display screen by using an image processing algorithm in the system of the terminal, wherein N is the number of the box bodies.
Step S06: identifying the contents of the N divided images one by one;
the LED display screen control system respectively identifies the display contents of the N divided images through an image algorithm, for example, the number of the box bodies in FIG. 2 is 12, and the content of each image after 12 divided images can be identified through the image algorithm. If the acquisition of the initialization image is performed by the terminal, the image information of each divided image can be identified in the terminal by using an image algorithm.
Step S07: determining the physical position of each LED display screen box body;
in step 05, when the display screen picture is cut into N box unit pictures according to the number of rows and columns of the box identified in step 04, the identification algorithm already obtains the corresponding two-dimensional position coordinates of each cut box picture on the display screen; after passing through step S06, the identification algorithm has learned the unique identification information displayed for each case. Therefore, the identification algorithm establishes the one-to-one correspondence between the unique identification information representing each box body and the two-dimensional position coordinates of the picture of the LED display screen, so that the two-dimensional position of each box body of the LED display screen corresponding to the display screen can be determined.
Step S08: and (4) sending the one-to-one correspondence relationship between the unique identification information of each box body obtained in the step (07) and the two-dimensional position coordinates of the picture of the LED display screen to an LED display screen control system, and completing the setting of screen connection parameters.
According to the automatic screen connecting method for the LED display screen in the embodiment, after the eight steps of the embodiment are carried out, the real physical position of each box body can be obtained by the LED display screen system, and the automatic screen connecting of the LED display screen is realized.
In the eight steps, only in step 02, a person is required to click a key of a software interface to obtain an initial image picture of a display screen and send an identification instruction; other steps are all automatically completed by a control system comprising an image recognition algorithm, and screen connection parameters of each box body of the display screen are finally obtained; the screen connection parameter describes the one-to-one correspondence relationship between the unique identification information of each box body and the two-dimensional position coordinates of the box body in the display screen picture.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the one-dimensional coordinate digital information corresponding to each LED display screen box body displayed by the LED display screen in the power-on initialization mode is the actual physical position information of each LED display screen box body in the splicing process. By identifying the digital image information of the power-on initialization corresponding to each box body and then sending the digital image information of the power-on initialization corresponding to each box body to the LED display screen control system, the LED display screen control system can obtain the actual physical position of each spliced box body, namely the system determines the connection mode of the LED display screen box bodies, and the connection of the LED display screen is completed. The automatic screen connecting method of the LED display screen can enable the display screen to display correct image information no matter how the installation sequence of the display screen box body is. The automatic LED display screen connecting method can improve the assembling and line plugging rates of the LED display screen box body, meanwhile ensure the accuracy and the integrity of the displayed information, reduce the cost of the automatic LED display screen connecting, and solve the problem of overhigh cost caused by the fact that hardware such as a transmitter and a receiver is additionally added to the automatic LED display screen connecting.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An automatic screen connection method for an LED display screen is characterized by comprising the following steps:
electrifying and initializing to display one-dimensional coordinate digital information of the LED display screen, wherein the one-dimensional coordinate digital information is unique identification information of a display screen box body;
acquiring initialized one-dimensional coordinate digital image information of a display screen by photographing through a mobile terminal or a camera;
determining the total number N of the LED display screen box bodies spliced with each other;
determining the number of rows or columns of the LED display screens spliced with each other;
cutting the acquired display screen initialization one-dimensional coordinate digital image into N parts according to the row and column arrangement position condition of the box body by a specific image processing technology;
respectively identifying content information of the N cut images;
determining the physical position information of the display screen box body corresponding to the display content of each cut image;
and sending the physical position information of each box body to an LED display screen system to complete the screen connection of the LED display screen.
2. The LED display screen connection method according to claim 1, wherein the initialized one-dimensional coordinate digital image information is numerical serial number information from number 1 to number N.
3. The automatic screen connecting method for the LED display screen according to claim 1, wherein the initialized one-dimensional coordinate digital image information is a bar code or a two-dimensional code of a unique serial number of each box body.
4. The automatic LED display screen connecting method according to claim 1, wherein the mobile terminal cuts the acquired initialized one-dimensional coordinate digital image information into N blocks according to the arrangement position of the box in rows and columns, identifies each cut digital image information, and sends each identified cut image information back to the LED display screen control system.
5. The automatic screen connection method for the LED display screen according to claim 1, wherein the mobile terminal sends the acquired initialized one-dimensional coordinate digital image information back to the LED display screen control system, the LED display screen control system cuts the image information into N blocks according to the arrangement position of the box bodies in rows and columns, and identifies the cut digital image information of each block.
6. The automatic LED display screen connecting method according to claim 1, wherein initialized one-dimensional coordinate digital image information acquired by the camera is transmitted back to an LED display screen control system, and is cut into N blocks in the LED display screen control system according to the row and column arrangement position condition of the box body, and each cut digital image information is identified.
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