CN115390780B - Spliced screen pairing method and device - Google Patents
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- CN115390780B CN115390780B CN202211330675.3A CN202211330675A CN115390780B CN 115390780 B CN115390780 B CN 115390780B CN 202211330675 A CN202211330675 A CN 202211330675A CN 115390780 B CN115390780 B CN 115390780B
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- 238000012423 maintenance Methods 0.000 abstract description 7
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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
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Abstract
The invention relates to the technical field of character superposition and discloses a spliced screen pairing method and device. According to the method, an independent first number is configured in a first video channel output register, 7 sections of codes are carried out on single number characters, the first number numbers are superposed on a first video corresponding to the first video channel output register according to the code values of the single number characters, the number numbers displayed on each small screen are collected in real time, the small screens with the same number numbers as the first number numbers are matched with the first video channel output register, and the corresponding relation between each small screen and a video output port is confirmed only by superposing the number characters on the video of each splicer video output port through simple 7 sections of codes without superposing the literal characters, so that the work efficiency of character superposition is improved, and greater convenience is brought to operation and maintenance.
Description
Technical Field
The invention relates to the technical field of character superposition, in particular to a method and a device for matching a spliced screen.
Background
The existing spliced display screen is widely applied to: in monitoring systems such as monitoring, commanding and dispatching systems, public security, fire protection, military, meteorology, railways and aviation, video conferences, query systems and the like, each small screen of the large splicing display screen corresponds to a video output port of the splicer one by one, and great convenience can be brought to operation and maintenance by confirming the corresponding relationship, so that a method is necessary to be provided for confirming the corresponding relationship between each small screen and the video output port.
At present, two methods are mainly used, one method is to confirm the corresponding relation through the video cables connected with the two methods, but when the splicing display large screen consists of enough small screens, the method is very complicated; the other is a method for superimposing subtitles, the traditional subtitle superimposition implementation mode is to display by superimposing dot matrix data, a subtitle library data needs to be established, and a large amount of subtitle dot matrix data needs to be transmitted and stored.
Disclosure of Invention
The invention provides a matching method and device for spliced screens, which can be used for more simply confirming the corresponding relation between each small screen and a video output port and improving the working efficiency of operation and maintenance personnel.
In order to solve the above technical problem, a first embodiment of the present invention provides a method for pairing a tiled screen, including:
configuring a first digital number in a first video channel output register; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register;
according to the coding value of each digital character, overlapping the first digital number on a first video corresponding to a first video channel output register so as to display a first video with the first digital number on a small screen currently displaying the first video; wherein, the coded value of each numeric character is obtained according to 7-segment codes of a single numeric character;
and acquiring the number displayed on each small screen in the spliced screen in real time, and matching the small screen with the same number with the first video channel output register.
According to the invention, the independent first number is configured on the first video channel output register, the first number is superposed on the first video corresponding to the first video channel output register by contrasting the code value of each digital character, the number displayed on each small screen is simultaneously acquired in real time, and the small screen with the same displayed number and the first number is matched with the first video channel output register, so that the working efficiency of operation and maintenance personnel is improved.
Further, the superimposing, according to the code value of each digital character, the first digital number on the first video corresponding to the first video channel output register specifically includes:
determining the code value of the first number according to the code value of each digital character;
calculating the number of lines and columns according to a horizontal synchronizing signal, a vertical synchronizing signal and a data enabling signal of the video, and determining the coordinates of each pixel point on the first video;
acquiring a digital character display range on a first video;
and adjusting the display mode of each pixel point on the first video according to the coordinates of each pixel point by combining the display range of the digital characters and the coding value of the first digital number, so that the first digital number is displayed on the first video.
Determining the code value of the first number by comparing the code values of the digital characters; calculating and determining coordinates of all pixel points on the video, and comprehensively considering the display range of the digital characters on the video and the coding value of the first digital number to adjust the display mode of each pixel point on the first video; the method can superpose the channel character numbers only through simple digital coding, thereby saving the complex program for superposing the character characters and improving the accuracy rate of superposed characters.
Further, the adjusting, by combining the digital character display range and the code value of the first number, the display mode of each pixel point on the first video according to the coordinate of each pixel point specifically includes:
judging whether the pixel point coordinates are in a digital character display range or not;
if the pixel point coordinates are outside the digital character display range, the display mode of the pixel points on the first video is not changed;
if the pixel point coordinate is in the digital character display range, detecting the encoding value of the pixel point coordinate;
when the encoding value of the pixel point coordinate is 1, displaying the pixel point on a first video as white;
and when the encoding value of the pixel point coordinate is 0, displaying the pixel point on the first video as black.
The display mode of the coordinate of each pixel point is adjusted on the video by combining the coding value of the digital character and the display range of the digital character, wherein when the coordinate of the pixel point is in the display range of the digital character and the coding value of the coordinate is 1, the coordinate point is displayed to be white on the small screen, so that the numbers are displayed on the small screen according to different colors on the small screen, and the operation and maintenance personnel can conveniently confirm the corresponding relation between each small screen and the output port.
Further, the configuring of the first digital number in the first video channel output register specifically includes:
acquiring the number of an output port of a first video channel;
storing the serial number of the output port of the first video channel in an output register of the first video channel to form a first digital serial number;
the output ports of the video channels in the splicer are all provided with fixed numbers, and due to the corresponding relation between the output ports of the video channels and the output registers of the video channels, the numbers of the output ports of the video channels and the numbers of the output registers of the video channels are also corresponding.
The output port of the first video channel has a fixed number, and the first digital number can be configured in the output register of the first video channel by acquiring the number of the output port of the first video channel due to the corresponding relation between the output port of the video channel and the output register of the video channel.
Further, the coded value of each digital character is obtained according to 7-segment coding of a single digital character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying the display mode of each single numeric character in 7 display areas; wherein the display state includes display in the display area and non-display in the display area;
in 7 display areas, setting the code value of a display area which is displayed as 1 and the code value of a display area which is not displayed as 0;
and determining the code value of each single numerical character by combining the display mode and the number of the display area.
The invention provides a matching method of spliced screens, which is characterized in that an independent first number is configured in a first video channel output register, 7-segment coding is carried out on a single number character, the first number is superposed on a first video corresponding to the first video channel output register according to the coding value of the single number character, the number displayed on each small screen is simultaneously acquired in real time, the small screen with the same displayed number and the first number is matched with the first video channel output register, the method does not need to superpose literal characters, only needs to superpose the number character on the video of each video output port of a splicer through simple 7-segment coding, and confirms the corresponding relation between each small screen and the video output port, thereby accelerating the working efficiency of character superposition and bringing greater convenience to operation and maintenance.
Correspondingly, the invention provides a spliced screen pairing device, which comprises: a configuration system, an overlay system and a pairing system;
the configuration system is used for configuring a first digital number at the output register of the first video channel; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register;
the superposition system is used for superposing the first digital number on a first video corresponding to a first video channel output register according to the coding value of each digital character so as to display the first video with the first digital number on a small screen currently displaying the first video; wherein, the coded value of each numeric character is obtained according to 7-segment codes of a single numeric character;
the matching system is used for acquiring the number displayed on each small screen in the spliced screen in real time and matching the small screen with the same number with the first video channel output register.
Further, the overlay system includes: the device comprises a coding value determining module, a pixel point coordinate determining module, an acquiring module and an adjusting module;
the code value determining module is used for determining the code value of the first number according to the code value of each digital character;
the pixel point coordinate determination module is used for calculating the number of lines and columns according to a horizontal synchronizing signal, a vertical synchronizing signal and a data enabling signal of the video to determine the coordinate of each pixel point on the first video;
the acquisition module is used for acquiring a digital character display range on a first video;
the adjusting module is used for adjusting the display mode of each pixel point on the first video according to the coordinate of each pixel point by combining the digital character display range and the coding value of the first digital number, so that the first digital number is displayed on the first video.
Further, the adjusting module includes: the device comprises a judging unit, a first display unit, a second display unit, a first adjusting unit and a second adjusting unit;
the judging unit is used for judging whether the pixel point coordinates are in the digital character display range or not;
the first display unit is used for not changing the display mode of the pixel point on the first video if the pixel point coordinate is outside the display range of the digital character;
the second display unit is used for detecting the encoding value of the pixel point coordinate if the pixel point coordinate is in the display range of the digital character;
the first adjusting unit is used for displaying the pixel point as white on the first video when the encoding value of the pixel point coordinate is 1;
the second adjusting unit is used for displaying the pixel point as black on the first video when the encoding value of the pixel point coordinate is 0.
Further, the configuration system includes: the device comprises an acquisition module and a storage module;
the acquisition module is used for acquiring the serial number of the output port of the first video channel;
the storage module is used for storing the serial number of the output port of the first video channel in the output register of the first video channel to form a first digital serial number;
the output ports of the video channels in the splicer are all provided with fixed numbers, and due to the corresponding relation between the output ports of the video channels and the output registers of the video channels, the numbers of the output ports of the video channels and the numbers of the output registers of the video channels are also corresponding.
Further, the coded value of each digital character is obtained according to 7-segment coding of a single digital character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying a display state of each individual numeric character in 7 display regions;
in 7 display areas, setting the code value of the display area needing to be displayed as 1, and setting the code value of the display area not needing to be displayed as 0;
the encoded value of each individual numeric character is determined in conjunction with the display status and the number of the display area.
The invention provides a spliced screen pairing device which is based on organic combination among modules, can more simply confirm the corresponding relation between each small screen and a video output port, and improves the working efficiency of operation and maintenance personnel.
Drawings
Fig. 1 is a schematic flowchart of an embodiment of a method for pairing a tiled screen according to the present invention;
FIG. 2 is a flowchart illustrating an embodiment of a method for stacking numbers according to the present invention;
FIG. 3 is a schematic flowchart of another embodiment of a method for superimposing digital numbers according to the present invention;
fig. 4 is a schematic flowchart of another embodiment of a spliced screen pairing method provided by the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a device for pairing a spliced screen provided by the present invention;
FIG. 6 is a schematic diagram of an embodiment of a stacking system according to the present invention;
FIG. 7 is a schematic structural diagram of an embodiment of an adjustment module according to the present invention;
fig. 8 is a schematic structural diagram of an embodiment of a configuration system provided in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, which is a schematic flow chart of an embodiment of a method for pairing a tiled screen provided by the present invention, the method includes steps 101 to 103, and each step specifically includes the following steps:
step 101: configuring a first digital number in a first video channel output register; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register.
Step 102: according to the coding value of each digital character, overlapping the first digital number on a first video corresponding to a first video channel output register so as to display a first video with the first digital number on a small screen currently displaying the first video; wherein the coded value of each numeric character is obtained from a 7-segment coding of a single numeric character.
Step 103: and acquiring the number displayed on each small screen in the spliced screen in real time, and matching the small screen with the same number with the first video channel output register.
In the embodiment of the present invention, as shown in fig. 2, step 102 includes steps 201 to 204, and each step is as follows:
step 201: determining the code value of the first number according to the code value of each digital character;
step 202: calculating the number of lines and columns according to a horizontal synchronizing signal, a vertical synchronizing signal and a data enabling signal of the video, and determining the coordinates of each pixel point on the first video;
step 203: acquiring a digital character display range on a first video;
in the embodiment of the invention, the display range of the digital characters on the first video is issued by the host of the splicer, and the display area of the first digital number is the display range of the digital characters on the first video.
Step 204: and adjusting the display mode of each pixel point on the first video according to the coordinates of each pixel point by combining the display range of the digital characters and the coding value of the first digital number, so that the first digital number is displayed on the first video.
As an example of this embodiment, the resolution of the output source video is set to 1920 × 1080, the size of the 4-character overlay total layer is set to 400 × 200, the width of each field of the number is 10 pixels, and the length is 50 pixels. The video channel output port has 4 control signals, HSYNC (horizontal synchronization signal), VYSNC (vertical synchronization signal), DE (DATA enable signal), and DATA (display DATA), respectively. The pixel coordinates (x, y) can be obtained through HSYNC, VSYNC, and DE signals: resetting the x coordinate to 1 when HSYNC is high level, and accumulating the x coordinate to 1 when DE is high level; the y-coordinate resets 1 when VSYNC is high, and accumulates 1 when DE is high and the x-coordinate is full 1920. The pixel coordinates (x, y) thus range from (1, 1) to (1920, 1080).
In the embodiment of the present invention, as shown in fig. 3, step 204 includes steps 301 to 305, and each step is specifically as follows:
step 301: and judging whether the pixel point coordinates are in the digital character display range.
Step 302: and if the coordinates of the pixel points are out of the display range of the digital characters, the display mode of the pixel points on the first video is not changed.
Step 303: and if the pixel point coordinate is in the digital character display range, detecting the encoding value of the pixel point coordinate.
Step 304: and when the encoding value of the pixel point coordinate is 1, displaying the pixel point on the first video as white.
Step 305: and when the encoding value of the pixel point coordinate is 0, displaying the pixel point on the first video as black.
As an example of this embodiment, adjusting the color of the pixel point on the first video may be implemented by adjusting a pixel RGB value, and when the pixel point needs to display white, the pixel RGB value may be adjusted to 0xFFFFFF; when the pixel needs to display black, the RGB value of the pixel can be adjusted to 0x000000.
In the embodiment of the present invention, as shown in fig. 4, step 101 includes step 401 and step 402, and each step specifically includes the following steps:
step 401: and acquiring the serial number of the output port of the first video channel.
Step 402: the number of the first video channel output port is stored in the first video channel output register to form a first number.
The output ports of the video channels in the splicer are all provided with fixed numbers, and due to the corresponding relation between the output ports of the video channels and the output registers of the video channels, the numbers of the output ports of the video channels and the numbers of the output registers of the video channels are also corresponding.
In the embodiment of the invention, the splicer comprises an input card, a host and an output card, wherein each output card is provided with a plurality of video channel output ports, each video channel output port corresponds to one video channel output register, the host configures independent numerical values for each video channel output register, for example, the fourth output port of the second channel in the output card is numbered 0204, and the video channel output register is numbered 0204, so that the 0204 characters are superposed on the video corresponding to the video channel output port.
In the embodiment of the present invention, the code value of each numeric character is obtained from 7 segments of codes of a single numeric character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying the display mode of each single numeric character in 7 display areas; wherein the display state includes display in the display area and non-display in the display area;
in 7 display areas, setting the code value of a display area which is displayed as 1 and the code value of a display area which is not displayed as 0;
and determining the code value of each single numerical character by combining the display mode and the number of the display area.
As an example of this embodiment, a single numeric character from 0 to 9 is encoded by 7 segments, and the encoded values are: 0 is 0111111,1 is 0110000,2 is 1011011,3 is 1001111,4 is 1100110,5 is 1101101,6 is 1111101,7 is 0000111,8 is 1111111,9 is 1101111. The resolution of the output source video is set to 1920 x 1080, the size of the 4-character superposition total layer is set to 400 x 200, the width of each field of the number is 10 pixels, and the length is 50 pixels. Taking the numeric character "2" as an example, the code value of the numeric character "2" is 1011011:
the code value for the 7 th display area is 1, then the starting coordinate at the top left corner is (130, 100), the ending coordinate at the bottom right corner is (179, 109), and the DATA fill in this range is 0xFFFFFF (white);
the code value of the 6 th display area is 0, then the start coordinate of the upper left corner is (120, 50), the end coordinate of the lower right corner is (129, 99), the DATA padding in the range is 0x000000 (black);
the 5 th display region has a code value of 1: then the starting coordinate at the top left corner is (120, 110) and the ending coordinate at the bottom right corner is (129, 159), and the DATA fill in this range is 0xFFFFFF (white);
the code value of the 4 th display area is 1: then the top left start coordinate is (130, 160) and the bottom right end coordinate is (179, 169), and the DATA fill in this range is 0xFFFFFF (white);
the code value of the 3 rd display area is 0: then the starting coordinate at the top left corner is (180, 110) and the ending coordinate at the bottom right corner is (189, 159), and the DATA fill in this range is 0x000000 (black);
the code value of the 2 nd display area is 1: then the starting coordinate at the top left corner is (180, 50) and the ending coordinate at the bottom right corner is (189, 99), and the DATA fill in this range is 0xFFFFFF (white);
the code value of the 1 st display area is 1: then the top left start coordinate is (130, 40) and the bottom right end coordinate is (179, 49), and the DATA fill in this range is 0xFFFFFF (white);
the other DATA padding in the range of the superimposed layer is 0x000000 (black), and the superimposition of the single character can be completed through the above processing.
Correspondingly, as shown in fig. 5, the configuration diagram of an embodiment of the apparatus for pairing a tiled screen provided in the present invention is shown, and the apparatus includes a configuration system 501, an overlay system 502, and a pairing system 503;
the configuration system 501 is configured to configure a first number at the first video channel output register; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register;
the superimposing system 502 is configured to superimpose the first digital number on a first video corresponding to a first video channel output register according to the code value of each digital character, so that a first video with the first digital number is displayed on a small screen currently displaying the first video; wherein the coded value of each numeric character is obtained according to the 7-segment coding of a single numeric character;
the matching system 503 is configured to collect, in real time, the number displayed on each small screen in the mosaic screen, and match the small screen with the same number as the first number with the first video channel output register.
In the embodiment of the present invention, as shown in fig. 6, the overlay system 502 includes: an encoding value determining module 601, a pixel point coordinate determining module 602, an obtaining module 603 and an adjusting module 604;
the code value determining module 601 is configured to determine a code value of the first number according to a code value of each digital character;
the pixel coordinate determination module 602 is configured to perform row number and column number calculation according to a horizontal synchronization signal, a vertical synchronization signal, and a data enable signal of a video, and determine coordinates of each pixel on a first video;
the obtaining module 603 is configured to obtain a display range of digital characters on the first video;
the adjusting module 604 is configured to adjust a display mode of each pixel point on the first video according to the coordinate of each pixel point by combining the digital character display range and the code value of the first number, so that the first number is displayed on the first video.
In the embodiment of the present invention, as shown in fig. 7, the adjusting module 604 includes: a determination unit 701, a first display unit 702, a second display unit 703, a first adjustment unit 704, and a second adjustment unit 705;
the judging unit 701 is configured to judge whether the pixel point coordinate is within a digital character display range;
the first display unit 702 is configured to, if the pixel coordinates are outside the display range of the numeric characters, not change the display mode of the pixel on the first video;
the second display unit 703 is configured to detect a code value of the pixel coordinate if the pixel coordinate is within a digital character display range;
the first adjusting unit 704 is configured to adjust a display range of the pixel point on the first video to be white when the encoding value of the pixel point coordinate is 1;
the second adjusting unit 705 is configured to adjust the display range of the pixel point on the first video to black when the encoding value of the pixel point coordinate is 0.
In the embodiment of the present invention, as shown in fig. 8, the configuration system 501 includes: an acquisition module 801 and a storage module 802;
the obtaining module 801 is configured to obtain a number of an output port of a first video channel;
the storage module 802 is configured to store the serial number of the output port of the first video channel in the output register of the first video channel to form a first digital serial number;
the output ports of the video channels in the splicer are all provided with fixed numbers, and due to the corresponding relation between the output ports of the video channels and the output registers of the video channels, the numbers of the output ports of the video channels and the numbers of the output registers of the video channels are also corresponding.
In the embodiment of the present invention, the code value of each numeric character is obtained from 7 segments of codes of a single numeric character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying the display state of each single numeric character in 7 display areas;
in 7 display areas, setting the code value of the display area needing to be displayed as 1 and the code value of the display area not needing to be displayed as 0;
the encoded value of each individual numeric character is determined in conjunction with the display status and the number of the display area.
To sum up, the method and the device for pairing the spliced screens provided by the embodiments of the present invention configure an independent first number in the first video channel output register, perform 7-segment coding on a single number character, superimpose the first number on the first video corresponding to the first video channel output register in accordance with the coding value of the single number character, simultaneously acquire the number displayed on each small screen in real time, and pair the small screen with the same displayed number as the first number with the first video channel output register.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A method for matching spliced screens is characterized by comprising the following steps:
configuring a first digital number in a first video channel output register; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register;
determining the code value of the first number according to the code value of each digital character; wherein, the coded value of each numeric character is obtained according to 7-segment codes of a single numeric character;
calculating the number of lines and columns according to a horizontal synchronizing signal, a vertical synchronizing signal and a data enabling signal of the video, and determining the coordinates of each pixel point on the first video;
acquiring a digital character display range on a first video;
combining the digital character display range and the coding value of the first digital number, and adjusting the display mode of each pixel point on the first video according to the coordinate of each pixel point so as to display the first video with the first digital number on a small screen currently displaying the first video;
and acquiring the number displayed on each small screen in the spliced screen in real time, and matching the small screen with the same number as the first number with the first video channel output register.
2. The matching method for the spliced screen according to claim 1, wherein the adjusting of the display mode of each pixel point on the first video according to the coordinates of each pixel point by combining the display range of the numeric characters and the code value of the first numeric number specifically comprises:
judging whether the pixel point coordinates are in a digital character display range or not;
if the pixel point coordinates are outside the digital character display range, the display mode of the pixel points on the first video is not changed;
if the pixel point coordinate is in the digital character display range, detecting the encoding value of the pixel point coordinate;
when the encoding value of the pixel point coordinate is 1, displaying the pixel point on a first video as white;
and when the encoding value of the pixel point coordinate is 0, displaying the pixel point on the first video as black.
3. The method for pairing tiled screens according to claim 1, wherein the first digital number is configured in the first video channel output register, specifically:
acquiring the serial number of an output port of a first video channel;
storing the serial number of the output port of the first video channel in an output register of the first video channel to form a first digital serial number;
the video channel output ports in the splicer are all provided with fixed numbers, and due to the corresponding relation between the video channel output ports and the video channel output registers, the numbers of the video channel output ports and the numbers of the video channel output registers are also corresponding.
4. The spliced screen pairing method according to claim 1, wherein the code value of each digital character is obtained from 7-segment codes of a single digital character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying the display mode of each single numeric character in 7 display areas; wherein the display state includes display in the display area and non-display in the display area;
in 7 display areas, setting the code value of a display area to be displayed as 1 and setting the code value of a display area not to be displayed as 0;
and determining the code value of each single numerical character by combining the display mode and the number of the display area.
5. A spliced screen pairing device, comprising: the system comprises a configuration system, a coding value determination system, a pixel point coordinate determination system, an acquisition system, an adjustment system and a pairing system;
the configuration system is used for configuring a first digital number at the output register of the first video channel; the splicer of the spliced screen comprises a plurality of video channel output ports, and each video channel output port corresponds to one video channel output register;
the code value determining system determines the code value of the first number according to the code value of each digital character; wherein the coded value of each numeric character is obtained according to the 7-segment coding of a single numeric character;
the pixel point coordinate determination system carries out line number and column number calculation according to a horizontal synchronizing signal, a vertical synchronizing signal and a data enabling signal of the video to determine the coordinate of each pixel point on the first video;
the acquisition system acquires a digital character display range on a first video;
the adjusting system combines the digital character display range and the coding value of the first digital number, and adjusts the display mode of each pixel point on the first video according to the coordinate of each pixel point, so that the first video with the first digital number is displayed on a small screen currently displaying the first video;
the matching system is used for acquiring the number displayed on each small screen in the spliced screen in real time and matching the small screen with the same number with the first video channel output register.
6. The tiled screen pairing apparatus of claim 5, wherein the adjustment system comprises: the device comprises a judging module, a first display module, a second display module, a first adjusting module and a second adjusting module;
the judging module is used for judging whether the pixel point coordinates are in a digital character display range or not;
the first display module is used for not changing the display mode of the pixel point on the first video if the pixel point coordinate is outside the display range of the digital character;
the second display module is used for detecting the coding value of the pixel point coordinate if the pixel point coordinate is in the display range of the digital character;
the first adjusting module is used for displaying the pixel point as white on the first video when the encoding value of the pixel point coordinate is 1;
the second adjusting module is used for displaying the pixel point as black on the first video when the coding value of the pixel point coordinate is 0.
7. The tiled screen pairing arrangement of claim 5, wherein the configuration system comprises: the device comprises an acquisition module and a storage module;
the acquisition module is used for acquiring the serial number of the output port of the first video channel;
the storage module is used for storing the serial number of the output port of the first video channel in the output register of the first video channel to form a first digital serial number;
the output ports of the video channels in the splicer are all provided with fixed numbers, and due to the corresponding relation between the output ports of the video channels and the output registers of the video channels, the numbers of the output ports of the video channels and the numbers of the output registers of the video channels are also corresponding.
8. The spliced screen pairing device according to claim 5, wherein the code value of each digital character is obtained from 7-segment codes of a single digital character, specifically:
determining 7 display areas for displaying digital characters, and numbering the 7 display areas;
specifying the display state of each single numeric character in 7 display areas;
in 7 display areas, setting the code value of the display area needing to be displayed as 1 and the code value of the display area not needing to be displayed as 0;
the code value of each individual numeric character is determined in conjunction with the display status and number of the display area.
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