CN116257198A - Television wall generation method and device, storage medium and display system - Google Patents

Television wall generation method and device, storage medium and display system Download PDF

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Publication number
CN116257198A
CN116257198A CN202111506366.2A CN202111506366A CN116257198A CN 116257198 A CN116257198 A CN 116257198A CN 202111506366 A CN202111506366 A CN 202111506366A CN 116257198 A CN116257198 A CN 116257198A
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China
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spliced
output port
screens
screen
output
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CN202111506366.2A
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Chinese (zh)
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赵熠
郑员
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Jinan Yushi Intelligent Technology Co ltd
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Jinan Yushi Intelligent Technology Co ltd
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Priority to CN202111506366.2A priority Critical patent/CN116257198A/en
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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
    • 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
    • G06F3/1431—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 using a single graphics controller

Abstract

A method and a device for generating a television wall, a storage medium and a display system. The television wall generation method comprises the following steps: acquiring the identifiers of a plurality of spliced screens connected with a splicing processor; respectively taking a plurality of spliced screens as target spliced screens, and sending a reset instruction to the spliced screens for each target spliced screen, wherein the reset instruction carries the identification of the target spliced screen; determining an output port where the identification data negotiation of the expansion display occurs, and establishing a corresponding relation between the output port where the identification data negotiation of the expansion display occurs and a target spliced screen; and generating a television wall formed by the images output by the plurality of output ports according to the corresponding relation, wherein the positions of the images output by the output ports on the television wall are consistent with the positions of the spliced screens corresponding to the output ports in the spliced screen matrix. According to the scheme provided by the embodiment, the corresponding relation between the spliced screen and the output port is determined by resetting the spliced screen, so that the television wall is generated, automatic generation of the television wall can be realized, and the efficiency and the accuracy are improved.

Description

Television wall generation method and device, storage medium and display system
Technical Field
The present disclosure relates to display technologies, and in particular, to a method and apparatus for generating a television wall, a storage medium, and a display system.
Background
Large-scale liquid crystal display (Liquid Crystal Display, LCD) spliced screens are spliced together in public security traffic command centers, convention centers and other places and are used for displaying a plurality of spliced pictures of a camera in a live state or in a local configuration. Typically these pictures are pushed to the tiled screen by the tile processor. The large-scale splice processor has the output capability of more than hundred ways, and is suitable for scenes such as squares, exhibitions, stages and the like. According to the traditional service deployment scheme, an output channel is manually selected and bound on a splicing processor according to the connection relation between an input port of a field splicing screen and an output port of the splicing processor, so that the creation of a television wall is completed, time and labor are consumed, and errors are easy to occur.
Disclosure of Invention
The embodiment of the application provides a television wall generation method and device, a storage medium and a display system, and the television wall generation efficiency is improved.
The embodiment of the application provides a television wall generation method, which is applied to a splicing processor comprising a plurality of output ports, and comprises the following steps:
acquiring the identifiers of a plurality of spliced screens connected with the splicing processor;
taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: sending a reset instruction to the plurality of spliced screens, wherein the reset instruction carries the identification of the target spliced screen; determining an output port where the identification data negotiation of the expansion display occurs, and establishing a corresponding relation between the output port where the identification data negotiation of the expansion display occurs and a target spliced screen;
after the corresponding relation between the spliced screens and the output ports is established, a television wall formed by images output by the output ports is generated, wherein the positions of the images output by the output ports on the television wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix formed by the spliced screens.
In an exemplary embodiment, the method further comprises: for any output port, when the output port acquires the identification data of the expansion display, the preset identification mark position of the output port is set as a first preset value, and when the output port does not acquire the identification data of the expansion display, the identification mark position of the output port is set as a second preset value;
the determining that the negotiation of the extended display identification data occurs includes: traversing the output port of the splicing processor, and when the identification zone bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, the output port is the output port for generating the identification data negotiation of the expansion display.
In an exemplary embodiment, the method further includes, when it is detected that the preset identification flag bit of the output port changes from the first preset value to the second preset value and then to the first preset value, setting the preset status flag position of the output port to be a third preset value, otherwise, setting the status flag position of the output port to be a fourth preset value;
when the identification bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, the output port for generating the negotiation of the identification data of the expansion display comprises:
when the status flag bit of the output port is a third preset value, the output port is an output port where EDID negotiation occurs.
In an exemplary embodiment, the method further comprises: determining row information and column information of the spliced screen according to the identification of the spliced screen;
taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: and generating a spliced screen queue according to the row information and the column information of the spliced screen, wherein in the spliced screen queue, the spliced screen with small row information is positioned before the spliced screen with large row information, and in the spliced screen with the same row information, the spliced screen with small column information is positioned before the spliced screen with large column information, and the plurality of spliced screens are sequentially used as target spliced screens to execute the following operations according to the spliced screen queue.
In an exemplary embodiment, the establishing the correspondence between the output port where the extended display identification data negotiation occurs and the target mosaic screen includes:
taking the serial number of the target spliced screen in the spliced screen queue as the serial number of the output port corresponding to the target spliced screen;
the generating the television wall formed by the images output by the plurality of output ports comprises: and establishing a television wall with h rows and v columns formed by the images output by the plurality of output ports according to the serial numbers of the output ports, wherein for any output port, the serial numbers of the output ports are the same as the serial numbers of the output ports in an output port queue, the output port queue is a queue formed by sequencing the output ports in the television wall according to the sequence from small to large of the rows, when the rows are the same, the rows are the row numbers of the spliced screens contained in the spliced screen matrix formed by the plurality of spliced screens, and the v is the column number of the spliced screens contained in the spliced screen matrix formed by the plurality of spliced screens.
In an exemplary embodiment, the method further includes updating the correspondence between the plurality of spliced screens and the plurality of output ports after detecting that the connection mode between the output ports of the splicing processor and the spliced screens is changed, and generating a television wall formed by images output by the plurality of output ports according to the updated correspondence between the plurality of spliced and the plurality of output ports, wherein the positions of the images output by the output ports in the television wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix formed by the plurality of spliced screens after updating.
In an exemplary embodiment, the method further includes outputting the information of the output port to a spliced screen corresponding to the output port for display.
An embodiment of the present disclosure provides a television wall generating device, including a memory and a processor, where the memory stores a program, and when the program is read and executed by the processor, the method for generating a television wall according to any one of the foregoing embodiments is implemented.
The disclosed embodiments provide a computer-readable storage medium storing one or more programs executable by one or more processors to implement the television wall generation method described in any of the above embodiments.
The embodiment of the disclosure provides a display system, which comprises a splicing processor and a plurality of splicing screens, wherein the splicing processor comprises the television wall generating device.
Compared with the related art, the embodiment of the application comprises a television wall generating method and device, a storage medium and a display system, wherein the television wall generating method is applied to a splicing processor comprising a plurality of output ports and comprises the following steps: acquiring the identifiers of a plurality of spliced screens connected with the splicing processor; taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: sending a reset instruction to the plurality of spliced screens, wherein the reset instruction carries the identification of the target spliced screen; determining an output port where the identification data negotiation of the expansion display occurs, and establishing a corresponding relation between the output port where the identification data negotiation of the expansion display occurs and a target spliced screen; after the corresponding relation between the spliced screens and the output ports is established, a television wall is generated according to the output ports, and the positions of the output ports on the television wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix formed by the spliced screens. According to the television wall generation method, the corresponding relation between the spliced screen and the output port is determined by resetting the spliced screen, so that the television wall is generated, automatic generation of the television wall can be realized, and the efficiency and the accuracy are improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Other advantages of the present application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide an understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.
FIG. 1 is a schematic diagram of a splice processor and splice screen connection provided in an exemplary embodiment;
FIG. 2 is a schematic diagram of a serial connection of a spliced screen according to an exemplary embodiment;
FIG. 3 is a schematic diagram of a stitched screen ID provided in an exemplary embodiment;
FIG. 4 is a flowchart of a method for generating a video wall according to an exemplary embodiment;
FIG. 5 is a flowchart of a method for generating a video wall according to an exemplary embodiment;
FIG. 6 is a schematic diagram of a virtual channel provided by an exemplary implementation;
fig. 7 is a schematic diagram of a television wall generating apparatus according to an exemplary embodiment.
Detailed Description
The present application describes a number of embodiments, but the description is illustrative and not limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or in place of any other feature or element of any other embodiment unless specifically limited.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements of the present disclosure may also be combined with any conventional features or elements to form a unique inventive arrangement as defined in the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive arrangements to form another unique inventive arrangement as defined in the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Further, various modifications and changes may be made within the scope of the appended claims.
Furthermore, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps are possible as will be appreciated by those of ordinary skill in the art. Accordingly, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
In the embodiment of the disclosure, the input port of the spliced screen and the output port of the spliced processor can be connected in any order by using video lines, the spliced screen is reset, the EDID negotiation process of the spliced processor is detected, the corresponding relation between the spliced screen and the output port is determined, the television wall is automatically generated, convenience is brought to service deployment, and the efficiency is improved.
The embodiment of the disclosure provides a display system, which comprises a splicing processor and a plurality of spliced screens, wherein the spliced screens form a spliced screen matrix, the number of rows of the spliced screen matrix is h, and the number of columns of the spliced screen matrix is v. The serial ports of a plurality of spliced screens are cascaded in sequence, the connection sequence is arbitrary, physical parameters of each spliced screen can be set through a remote controller or a serial port tool, the physical parameters comprise but are not limited to three parameters of row, column and spliced screen Identification (ID), and the spliced screen ID can be a 4-bit serial number formed by the number of rows and columns.
And defining the first arrangement sequence as a spliced screen sequence of the serial port cascade of the spliced screens.
The second permutation order is defined as follows:
comparing the IDs of the spliced screens read back by the serial ports to obtain row value and column value parameters of the spliced screens;
(1) Taking the spliced screen IDs with the same row value, comparing the column values of the spliced screen IDs, and sequencing the spliced screen IDs according to the sequence from low to high of the column values to obtain h spliced screen sequences;
(2) The h spliced screen sequences are ordered according to the order of the row values from low to high;
(3) The h spliced screen sequences which are sequentially output are spliced screen sequences obtained according to the second arrangement sequence.
As shown in fig. 1, the plurality of output ports of the splice control processor are respectively connected with the input ports of 3*3 splice screens (respectively, splice screens 1 to 9), and the input ports of the splice screens and the output ports of the splice processor can be connected in any order. The serial ports of the spliced screens are cascaded in the sequence shown in fig. 2; the serial port of the splicing processor is connected with the first spliced screen (the spliced screen 1 in this embodiment) at the beginning of the serial port of the spliced screen matrix. Then, the first arrangement sequence of the spliced screen is: 1 >2 >3 >6 >5 >4 >7 >8 >9; the second arrangement sequence of the spliced screen is as follows: 1- (2-) 3- (4-) 5- (6-) 7- (8-) 9. The instruction issued by the splicing processor through the serial port can be transmitted to all the spliced screens step by step according to the first arrangement sequence, and the instruction received by each spliced screen is the same. Fig. 3 is a schematic diagram of a stitched screen ID. As shown in fig. 3, IDs of the spliced screens of the first row, the first column and the third column are 0101, 0102 and 0103 respectively; the ID of the spliced screen of the first column to the third column of the second row is 0201,0202,0203 respectively; the ID of the spliced screen of the first column to the third column of the third row is 0301,0302,0303, respectively.
Fig. 4 is a flowchart of a method for generating a television wall according to an embodiment of the disclosure. As shown in fig. 4, a method for generating a television wall according to an embodiment of the present disclosure is applied to a splice processor including a plurality of output ports, and the method includes:
step 401, obtaining the identifiers of a plurality of spliced screens connected with the splicing processor;
step 402, taking the plurality of spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: sending a reset instruction to the plurality of spliced screens, wherein the reset instruction carries the identification of the target spliced screen; determining an output port where the identification data negotiation of the expansion display occurs, and establishing a corresponding relation between the output port where the identification data negotiation of the expansion display occurs and a target spliced screen;
and step 403, after the corresponding relation between the spliced screens and the output ports is established, generating a television wall formed by the images of the output ports, wherein the positions of the images output by the output ports on the television wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix formed by the spliced screens.
According to the television wall generation method, the corresponding relation between the spliced screen and the output port is determined by resetting the spliced screen, so that the television wall is generated, automatic generation of the television wall can be realized, and the efficiency and the accuracy are improved. And can connect wantonly during earlier stage construction, the wiring of being convenient for can use manpower sparingly and time cost.
In an exemplary embodiment, an identification flag may be preset for recording whether the output port obtains extended display identification data (Extended Display Identification Data, EDID). The method further comprises the steps of: for any output port, when the output port obtains the EDID, the preset identification mark position of the output port is set as a first preset value, and when the output port does not obtain the EDID, the identification mark position of the output port is set as a second preset value;
the determining that the negotiation of the extended display identification data occurs includes: traversing the output port of the splicing processor, and when the identification zone bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, enabling the output port to be the output port where EDID negotiation occurs.
In an exemplary embodiment, the first preset value is, for example, 1, and the second preset value is, for example, 0, but the embodiments of the present disclosure are not limited thereto. After the output port is connected with the splicing processor, EDID negotiation can be carried out, after the negotiation is finished, the EDID is obtained, so that the identification mark position is 1, when the splicing screen is reset and the EDID is lost, the identification mark position is 0, after the negotiation is finished, the EDID is obtained, at the moment, the identification mark position is 1 again, and therefore, the identification mark position of the output port connected with the reset splicing screen can change by 1- >0- >1, and the output port subjected to the EDID negotiation can be determined according to the change of the identification mark position. Embodiments of the present disclosure are not limited in this regard and the output port at which the EDID negotiation occurs may be determined in other manners.
In an exemplary embodiment, the status flag bit may be further preset, and the method further includes, when detecting that the identification flag bit of the output port changes from the first preset value to the second preset value and then to the first preset value, setting the preset status flag position of the output port to be a third preset value, otherwise, setting the status flag position of the output port to be a fourth preset value;
when the identification bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, the output port for generating the negotiation of the identification data of the expansion display comprises:
when the status flag bit of the output port is a third preset value, the output port is an output port where EDID negotiation occurs.
In an exemplary embodiment, the third preset value is, for example, 1, and the fourth preset value is, for example, 0.
In an exemplary embodiment, the method further comprises: determining row information and column information of the spliced screen according to the identification of the spliced screen;
taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: and generating a spliced screen queue according to the row information and the column information of the spliced screen, wherein in the spliced screen queue, the spliced screen with small row information is positioned before the spliced screen with large row information, and in the spliced screen with the same row information, the spliced screen with small column information is positioned before the spliced screen with large column information, and the plurality of spliced screens are sequentially used as target spliced screens to execute the following operations according to the spliced screen queue. And generating a spliced screen queue according to the second arrangement sequence, and sequentially resetting spliced screens in the spliced screen queue. Embodiments of the present disclosure are not limited thereto and the spliced screens may be reset in any order.
In an exemplary embodiment, the establishing the correspondence between the output port where the extended display identification data negotiation occurs and the target mosaic screen includes:
taking the serial number of the target spliced screen in the spliced screen queue as the serial number of the output port corresponding to the target spliced screen;
the generating the television wall formed by the images output by the plurality of output ports comprises: and establishing a television wall of h rows and v columns formed by images output by the plurality of output ports according to the serial numbers of the output ports, wherein for any output port, the serial number of the output port is the same as the serial number of the output port in an output port queue, and the output port queue is a queue formed by sequencing the output ports in the television wall from small to large according to the sequence from small to large when the rows are the same.
In an exemplary embodiment, the method further includes updating to establish a correspondence between the plurality of spliced screens and the output ports when a change in a connection manner between the output ports of the splicing processor and the spliced screens is detected, and generating a television wall formed by images output by the plurality of output ports according to the updated correspondence between the plurality of spliced screens and the plurality of output ports, where a position of the image output by the output ports on the television wall is consistent with a position of the spliced screen corresponding to the output ports after updating in a spliced screen matrix formed by the plurality of spliced screens. . The connection mode change of the output port of the splicing processor and the splicing screen can comprise: (1) The input port of the splicing screen is connected to a new output port of the splicing processor; (2) The two input ports of the spliced screen are connected with the output ports in an exchanging way.
In an exemplary embodiment, the method further includes outputting the information of the output port to a spliced screen corresponding to the output port for display. The outlet information may be displayed on the tiled screen in the form of on-screen menu adjustments (On Screen Display, OSD). An output port represents a channel, and the information of the output port may include a channel name, for example, the channel name is: host number_slot number_channel type_channel number.
Because of the large number of screens, difficulties are brought to construction wiring and troubleshooting. The splicing processor responsible for television wall service is often far away from the screen, the middle is connected by a long video cable, the cable is hidden in the construction, the corresponding relation between the screen input port and the splicing processor output port cannot be intuitively obtained, the specific positions of the splicing processor output ports are checked one by one after the problem occurs, the labor is consumed, and inconvenience is brought to fault investigation and positioning. In this embodiment, through directly showing the delivery outlet information on the concatenation screen, can directly show the relation that the concatenation treater delivery outlet was with the concatenation screen, later maintenance all can use manpower sparingly and time cost.
The technical solution of the embodiments of the present disclosure is further described below by a specific example.
Fig. 5 is a flowchart of a method for generating a video wall according to an exemplary embodiment. As shown in fig. 5, the method for generating a television wall provided in this embodiment includes:
step 501, a splicing processor reads back IDs of all spliced screens through a serial port, and acquires row parameters and column parameters of the spliced screens according to the IDs of the spliced screens to obtain row numbers h and column numbers v of a spliced screen matrix;
step 502, comparing the row parameters and the column parameters of the spliced screen, and outputting the ID sequence { S } of the spliced screen according to the second arrangement order i -i is 1 to h x v); taking fig. 3 as an example, the following sequence is output: s is S 1 ＝0101,S 2 ＝0102,S 3 ＝0103,S 4 ＝0201,S 5 ＝0202,S 6 ＝0203,S 7 ＝0301,S 8 ＝0302,S 9 ＝0303。
Step 503, issuing a reset instruction Ri of the ith spliced screen, wherein i=1 at the beginning;
the reset instruction Ri may include two parameters, a stitched screen ID and a reset identifier, which may be represented as ri= (Si, r), where Si is the ID of the i-th stitched screen and r is the reset identifier; for example, designating the 6 th block screen reset in fig. 3, r6= (S 6 ,r)＝(0203,r)。
After each spliced screen receives a reset instruction Ri, analyzing whether Si in the reset instruction is consistent with the ID of the spliced screen, if so, responding to reset, and if not, keeping the current state. At this time, only one spliced screen in the spliced screen matrix can respond to the reset operation. The tile reset triggers EDID renegotiation of the output port to which it is connected. An output port of the splicing processor actively acquires the EDID of the splicing screen, if the EDID is acquired, the identification flag1 of the output port is set to 1, and if the EDID is not acquired, the identification flag position of the output port is 0;
step 504, after the i-th spliced screen is reset, the spliced processor sequentially detects the identification zone bit flag1 of each output port, when the identification zone bit flag1 changes by 1 to 0 to 1, the status zone bit flag2 of the output port is set to 1, otherwise, the status zone bit flag is set to 0; a continuous plurality of states of the identification bit of each output port may be recorded.
For example, after a reset instruction is sent and waiting for a preset time, the identification flag1 of each output port can be sequentially detected;
the splicing processor sequentially acquires the status flag2 of each output port, if the status flag2 of the output port is 1, the step 505 is executed, if the status flag2 of the output port is not 1 (i.e. the status flag2 of the output port is 0), and the step 503 is returned;
for example, after the identification flag bits flag1 of all the output ports are sequentially detected, the status flag bits flag2 of each output port can be sequentially obtained.
Step 505, assigning the channel name of the output port with the status flag bit flag2 of 1 to Li;
for example, if the status flag2 of the output port Pa (a is the serial number of the output port, 1 is greater than or equal to a is less than or equal to m, and m is the number of the output ports included in the splicing processor) is found to be 1, pa is the target channel of the ith splicing screen, that is, pa is the output port connected with the ith splicing screen, and the channel name of Pa is assigned to Li
Step 506, the serial number of the output port with the status flag2 being 1 is assigned as i, i is added with 1; resetting (setting 0) the state flag2 of the output port with the state flag2 being 1;
step 507, judging whether i is less than or equal to h x v, if yes, executing step 503, if not, that is, resetting all spliced screens, and executing step 508;
step 508, creating a tv wall of specification v×h, where the tv wall includes a plurality of virtual channels w i An output image, wherein i is 1 to h x v; and virtual channel w i The output image is positioned on the television wall and spliced screen S i At the spliceThe positions of the screen matrices are uniform. As shown in fig. 6, the tv wall includes a virtual channel w i Output image, virtual channel w i The output image is positioned on the television wall and spliced screen S i And the positions of the spliced screen matrixes are consistent.
Step 509, binding the output port with the sequence number i to the virtual channel w i Generating a television wall on the position;
step 510, outputting the channel name Li to a corresponding spliced screen for display, and specifically, outputting the channel name Li to a spliced screen Si for display;
in step 511, when the connection between the output port of the splicing processor and the input port of the splicing screen is changed, the television wall is regenerated, i is set to 1, and the process returns to step 503.
In another exemplary embodiment, a video wall may be created directly from the image output by the outlet without creating a virtual channel, where the image output by the outlet with the serial number i is located on the video wall and spliced with the screen S i And the positions of the spliced screen matrixes are consistent. When the subsequent display is carried out, the spliced screen outputs the display data of the output port with the serial number of i to the spliced screen S i And displaying.
In another exemplary embodiment, the channel name of Pa may not need to be assigned to Li, and the channel name of the output port with the serial number i may be displayed on the splicing screen Si.
In another exemplary embodiment, the status flag2 may not be set, the identification flag1 may be detected, and when there is a 1 >0 >1 change in the identification flag1 of the output port, the output port is determined to be the output port transmitting the EDID negotiation.
According to the scheme provided by the implementation, only one serial port line is needed, physical parameters of the spliced screen are read back, the spliced screen is controlled to be reset, the corresponding relation between the spliced screen and the output port is determined by detecting the EDID negotiation process of the output port of the spliced processor, the television wall is automatically generated, the cost is low, and the operation is simple; and the connection mode of the output port of the splicing processor and the splicing screen is not required, so that the wiring is simplified, and the efficiency is improved. In addition, the corresponding relation between the output port of the splicing processor and the splicing screen is intuitively embodied by outputting the channel name to the splicing screen for display, so that convenience is provided for wiring and maintenance.
As shown in fig. 7, an embodiment of the present disclosure provides a video wall generating apparatus 70, including a memory 710 and a processor 720, where the memory 710 stores a program, and the program, when read and executed by the processor 720, implements the video wall generating method described in any one of the foregoing embodiments.
The disclosed embodiments provide a computer-readable storage medium storing one or more programs executable by one or more processors to implement the television wall generation method described in any of the above embodiments.
The embodiment of the disclosure provides a display system, which comprises a splicing processor and a plurality of spliced screens, wherein the splicing processor comprises the television wall generating device.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

Claims (10)

1. A method for generating a television wall, applied to a splice processor comprising a plurality of output ports, comprising:
acquiring the identifiers of a plurality of spliced screens connected with the splicing processor;
taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: sending a reset instruction to the plurality of spliced screens, wherein the reset instruction carries the identification of the target spliced screen; determining an output port where the identification data negotiation of the expansion display occurs, and establishing a corresponding relation between the output port where the identification data negotiation of the expansion display occurs and a target spliced screen;
after the corresponding relation between the spliced screens and the output ports is established, a television wall formed by images output by the output ports is generated, wherein the positions of the images output by the output ports on the television wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix formed by the spliced screens.
2. The method of claim 1, wherein,
the method further comprises the steps of: for any output port, when the output port acquires the identification data of the expansion display, the preset identification mark position of the output port is set as a first preset value, and when the output port does not acquire the identification data of the expansion display, the identification mark position of the output port is set as a second preset value;
the determining that the negotiation of the extended display identification data occurs includes: traversing the output port of the splicing processor, and when the identification zone bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, the output port is the output port for generating the identification data negotiation of the expansion display.
3. The method of claim 2, further comprising setting a preset status flag position of the output port to a third preset value when detecting that the preset identification flag of the output port is changed from the first preset value to the second preset value and then to the first preset value, and otherwise setting the status flag position of the output port to a fourth preset value;
when the identification bit of the output port is changed from the first preset value to the second preset value and then to the first preset value, the output port for generating the negotiation of the identification data of the expansion display comprises:
when the status flag bit of the output port is a third preset value, the output port is an output port where EDID negotiation occurs.
4. A method of generating a video wall according to any one of claims 1 to 3, further comprising: determining row information and column information of the spliced screen according to the identification of the spliced screen;
taking the spliced screens as target spliced screens respectively, and executing the following operations on each target spliced screen: and generating a spliced screen queue according to the row information and the column information of the spliced screen, wherein in the spliced screen queue, the spliced screen with small row information is positioned before the spliced screen with large row information, and in the spliced screen with the same row information, the spliced screen with small column information is positioned before the spliced screen with large column information, and the plurality of spliced screens are sequentially used as target spliced screens to execute the following operations according to the spliced screen queue.
5. The method of generating a video wall according to claim 4, wherein the establishing the correspondence between the output port of the extended display identification data negotiation and the target mosaic screen includes:
taking the serial number of the target spliced screen in the spliced screen queue as the serial number of the output port corresponding to the target spliced screen;
the generating the television wall formed by the images output by the plurality of output ports comprises: and establishing a television wall with h rows and v columns formed by the images output by the plurality of output ports according to the serial numbers of the output ports, wherein for any output port, the serial numbers of the output ports are the same as the serial numbers of the output ports in an output port queue, the output port queue is a queue formed by sequencing the output ports in the television wall according to the sequence from small to large of the rows, when the rows are the same, the rows are the row numbers of the spliced screens contained in the spliced screen matrix formed by the plurality of spliced screens, and the v is the column number of the spliced screens contained in the spliced screen matrix formed by the plurality of spliced screens.
6. The method for generating a video wall according to any one of claims 1 to 3, further comprising updating the correspondence between the plurality of spliced screens and the plurality of spliced screens after detecting that the connection mode between the output port of the splicing processor and the spliced screen is changed, and generating a video wall composed of images output by the plurality of output ports according to the updated correspondence between the plurality of spliced screens and the plurality of output ports, wherein the positions of the images output by the output ports in the video wall are consistent with the positions of the spliced screens corresponding to the output ports in a spliced screen matrix composed of the plurality of spliced screens after updating.
7. A method of generating a video wall according to any one of claims 1 to 3, further comprising outputting information of the output port to a spliced screen corresponding to the output port for display.
8. A television wall generating apparatus comprising a memory and a processor, the memory storing a program which, when read by the processor for execution, implements the television wall generating method of any one of claims 1 to 7.
9. A computer-readable storage medium storing one or more programs executable by one or more processors to implement the method of generating a television wall as claimed in any one of claims 1 to 7.
10. A display system comprising a tiled processor and a plurality of tiled screens, the tiled processor comprising the television wall generating apparatus of claim 8.
CN202111506366.2A 2021-12-10 2021-12-10 Television wall generation method and device, storage medium and display system Pending CN116257198A (en)

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