WO2022237195A1

WO2022237195A1 - Method for implementing large load of receiving card, electronic device, receiving card, and data processing system

Info

Publication number: WO2022237195A1
Application number: PCT/CN2021/142977
Authority: WO
Inventors: 周锦志; 汪安春
Original assignee: 卡莱特云科技股份有限公司
Priority date: 2021-05-11
Filing date: 2021-12-30
Publication date: 2022-11-17
Also published as: CN112925499A; CN112925499B

Abstract

The present application relates to the technical field of LED display, and specifically discloses a method for implementing a large load of a receiving card, an electronic device, a receiving card, and a data processing system. The method for implementing a large load of a receiving card comprises: collecting a combined wiring table, a horizontal pre-arranging table, a vertical pre-arranging table, and video data of an upper computer; writing the video data into a dynamic random memory by means of the horizontal pre-arranging table; mapping the row number of the video data stored in the dynamic random memory by means of the vertical pre-arranging table to obtain a new row number of the video data; and re-writing the video data into the dynamic random memory according to the new row number. According to the present application, by means of the combined wiring table, the horizontal pre-arranging table, and the vertical pre-arranging table, the optimization dimension is provided, the correspondence between lamp points and the combined wiring table is ensured to be formed, video data of a plurality of pixel points can be continuously read in a large burst, the existing manner of reading one pixel point at a time is replaced, and the bandwidth utilization rate of the dynamic random memory is obviously improved.

Description

A method for realizing large loading of receiving card, electronic equipment, receiving card and data processing system

This disclosure is based on a Chinese patent application with application number 202110509797.8 and a filing date of May 11, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of LED display, and in particular to a method for realizing large loading of a receiving card, electronic equipment, a receiving card and a data processing system.

Background technique

It is known from the prior art that a single receiving card has a load limit, and the reason for the load limit is mainly from the bandwidth limit of the random dynamic memory (such as SDRAM/DDR2/DDR3/DDR4, etc.) of the receiving card, especially the It is caused by the inefficiency of reading a single data from the random random memory. For the existing application status, if the receiving card is to be used to realize the large load function, it is necessary to start from improving the bandwidth utilization efficiency of the random dynamic memory. At present, more than 2 pixels are stored in a random dynamic memory (video data), the inventor realized that if the processing is not done properly, the bandwidth utilization efficiency of the random dynamic memory will be sharply reduced.

Therefore, those skilled in the art urgently need to find a new technical solution to solve the above problems.

application content

Aiming at the technical problems in the prior art, the present application provides a method for realizing a large loading capacity of a receiving card, electronic equipment, a receiving card and a data processing system.

This application includes a method for realizing a large loading of a receiving card, including:

Receive the merged routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

Write the video data in the random dynamic memory through the horizontal pre-sort table;

Mapping the line numbers of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain the new line numbers of the video data;

Rewrite the video data into the random dynamic memory by the new line number.

The present application also includes an electronic device, including a processor and a memory, the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the following method is executed:

Rewrite the video data into the random dynamic memory by the new row number. The application also includes a receiving card with a large load. The receiving card includes a receiving module, a writing module, a mapping module and a random dynamic memory, wherein:

The receiving module is connected with the writing module and the mapping module, and is used to receive the combined routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

The writing module is connected with the receiving module, the mapping module and the random dynamic memory, and is used to write the video data into the random dynamic memory through the horizontal pre-sorting table, and rewrite the video data into the random dynamic memory through the new row number ;

The random dynamic memory is connected with the writing module and the mapping module, and is used for storing video data;

The mapping module is connected with the receiving module, the writing module and the random dynamic memory, and is used for mapping the line numbers of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain new line numbers of the video data.

The present application also includes one or more readable storage media storing computer-readable instructions, wherein, when the computer-readable instructions are executed by one or more processors, one or more processors are made to perform the following steps:

Rewrite the video data into the random dynamic memory by the new row number.

The present application also includes a data processing system, the data processing system includes the above-mentioned receiving card, and also includes a host computer and an LED display screen, wherein:

The upper computer is connected to the receiving card by communication, and is used to send the combined routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data to the receiving card;

The receiving card is connected with the upper computer and the LED display for rewriting and reading the video data;

The LED display is connected to the receiving card for communication, and is used for corresponding display according to the video data read by the receiving card.

The implementation method, electronic equipment, receiving card and data processing system of the receiving card in the embodiment of the present application, the horizontal pre-scheduling table and the vertical pre-scheduling table include the function of drawing the row and the list, through the horizontal pre-scheduling table and the vertical pre-scheduling table The table layout design maps new row numbers to the video data, and then rewrites the video data, so that the read efficiency of the random dynamic memory is the highest, and the read efficiency is hardly affected by other operations; The line table, horizontal pre-arrangement table and vertical pre-arrangement table provide optimized dimensions to ensure that the light points and the combined routing table form a corresponding relationship, and can continuously read video data of multiple pixels in a large burst, replacing the The existing method of reading one pixel at a time significantly improves the bandwidth utilization rate of random dynamic memory; through the above-mentioned processing process of video data, the reading efficiency of static data is also improved, and the use of bandwidth is greatly saved.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below, and other features and advantages of the application will become apparent from the specification, drawings, and claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the flow chart (1) of the steps of the implementation method of the large loading of the receiving card in the embodiment of the present application;

Fig. 2 is the flow chart (2) of the steps of the implementation method of the large loading of the receiving card in the embodiment of the present application;

Fig. 3 is the step flow chart (3) of the implementation method of receiving card large loading of the embodiment of the present application;

FIG. 4 is a structural composition diagram of a receiving card according to an embodiment of the present application;

FIG. 5 is a structural composition diagram of a data processing system according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of this application.

This application aims at the problem of low data reading efficiency of the random dynamic memory (such as SDRAM/DDR2/DDR3/DDR4, etc.) in the receiving card, and specially designs a method for realizing the large loading of the receiving card, as shown in Figure 1, including The following steps:

Step S101: Receive the merged wiring table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer.

The video data in this embodiment is used for displaying on the LED display screen, and how many frames of pictures should be refreshed per second are set. Compared with the correction coefficient, seam repair coefficient, etc., it can be defined as dynamic data, and the correction coefficient, The repair coefficient etc. are defined as static data.

The merged routing table in this embodiment is generated by the host computer after merging the routing table, the line drawing list, and the point table using a preset merging strategy. The combined routing table includes routing information, row extraction Column information and snapshot information. The wiring table is the corresponding relationship between video data and the position of the light points. Since an LED light board has at least one row decoding chip and one column driving chip, the row and column intersections formed by the row decoding chip and the column driving chip connect the light points. , so the wiring table is the transmission sequence table of video data on the LED display light points, which reflects the transmission sequence of video data on the light points. Each row decoding chip and each column driver chip has multiple pins, and the connection between chips is through input pins and output pins. When a certain row decoding chip and column driver chip When some pins are not in use, the pin is defined as an empty pin. At this time, in the process of video data transmission, a dummy data can be used to replace it, so that the video data can be output from the next pin, such as including 4 If pin 2 is empty, the data that should have been transmitted to pin 2 will be transferred to pin 3 under the action of false data in the order of video data, so the row-pumping list is video data Correspondence table with row decoding chip pins and column driver chip pins. The snapshot table is the correspondence table between video data and LED display lamp points. The snapshot information in the snapshot table is similar to the row and column information in the row and row list, but only for one lamp point, that is, Points that do not need to transmit video data, also give the light a fake data.

Before receiving the merged routing table, horizontal pre-arrangement table and vertical pre-arrangement table of the host computer, it also includes: after the host computer generates the horizontal pre-arrangement table and vertical pre-arrangement table according to the row-drawing table and the preset row-column conversion strategy , to get the horizontal preview table and vertical preview table. The horizontal pre-arrangement table and the vertical pre-arrangement table are used for rearranging the video data in subsequent steps.

Step S102: Write the video data into the random dynamic memory through the horizontal pre-sort table.

After the video data is first written into the random dynamic memory according to the requirements of the horizontal pre-arrangement table, the video data is arranged and stored in sequence according to the pixel data corresponding to each light point in a row, and then step S103 is executed:

Step S103: Map the line number of the video data stored in the random dynamic memory through the vertical pre-sort table to obtain a new line number of the video data.

There is a storage area in the random dynamic memory, and there is row addressing in the storage area, and each row of row addressing corresponds to a row number, and each row of row addressing can store effective pixel data. This step converts multiple effective pixel data After the vertical pre-sorting table processing is completed, it is stored in a new row (corresponding to the new row number) in the random dynamic memory. For example, one row is an area composed of "overhead data + effective data", such as "overhead data+4 Effective pixel point data" form, through the vertical pre-sorting table of this step, the effective pixel point data of the next row is also added to this row, and becomes "overhead data+(4 effective pixel point data+4 valid pixel data)", so that the video data previously written into the random dynamic memory through the horizontal pre-alignment table has a new line number. The overhead data in this embodiment is required by the normal operation of the random dynamic memory, such as the refresh cycle of each row of data.

Through this step, the video data has a new row number, and then step S104 is executed.

Step S104: rewrite the video data into the random dynamic memory through the new row number.

In the embodiment of the present application, the routing table, line drawing list, and point sampling table originally used for video data display are converted into a combined routing table, horizontal pre-arrangement table, and vertical pre-arrangement table, and obtained through the above steps New line number, rewrite the video data into random dynamic memory. Through the above-mentioned method of this embodiment, the rewriting of video data is realized, which replaces the traditional data storage method, and further improves the read efficiency of the random dynamic memory.

On the basis of the video data storage in the above-mentioned embodiments, as shown in Figure 2, the implementation method of the embodiment of the present application also includes reading the video data, specifically including the following steps:

The above step S101 to step S104 are the storage process of video data, which is consistent with the implementation process of the previous embodiment, and will not be repeated here.

Step S105: Receive a video data reading instruction.

After the receiving card receives the video data reading instruction, step S106 is executed to read the video data.

Step S106: Continuously read the video data stored in the random dynamic memory in the form of pixels by merging the routing table, the horizontal pre-arrangement table, and the vertical pre-arrangement table.

The merging wiring table of this embodiment has a snapshot function, assuming that the video data is read in the random dynamic memory according to the original wiring table, for example, there are 2 pairs of light points PX1 (red, green, and blue light points) with upper and lower intervals in the light points Composed of one pixel) and PX2, PX3 and PX4, and there is a certain interval between these two pairs of light points, assuming that the routing order of the routing table is PX1-PX3-PX2-PX4, now you can merge the routing The content of the table and the video data stored in the random dynamic memory, let PX1 and PX3 be spaced up and down, let PX2 and PX4 be spaced up and down, and finally read according to the wiring sequence PX1-PX3-PX2-PX4 to realize the light Correspondence between points and pixel data. The above is just an illustration of one of the cases. The host computer can calculate the horizontal pre-arrangement table and vertical pre-arrangement table with the highest reading efficiency in the random dynamic memory according to the specific lamp panel conditions (such as the connection relationship between the lamp point and the chip). surface.

On the basis of the above embodiments, as shown in Figure 3, the implementation method of the embodiment of the present application also includes storing static data, such as the following steps:

Step S107: Write the static data into the specified blank area of the random dynamic memory.

Through the storage and reading of the video data in the foregoing embodiments, the reading efficiency of the random dynamic memory reaches the highest level. At this time, the static data is written into the designated blank area of the random dynamic memory, even if the steps of the foregoing embodiments are not used to The rearrangement of the static data will not affect the reading efficiency of the random dynamic memory.

On the basis of the foregoing embodiments, as shown in Figure 3, when the static data stored in the random dynamic memory needs to be read, the following steps are included:

Step S108: Receive a static data reading instruction.

After receiving the static data reading instruction, execute step S109 to read the static data.

Step S109: Read the static data from the specified blank area of the RAM.

The static data in this step can be read directly.

The embodiment of the present application also includes an electronic device, including a processor and a memory, the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the following method as shown in Figure 1 is executed:

Step S101: Collect the combined wiring table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

Step S102: Write the video data into the random dynamic memory through the horizontal pre-sort table;

Step S103: Map the line numbers of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain a new line number of the video data;

Step S104: rewrite the video data into the random dynamic memory through the new row number. In the electronic device of the embodiment of the present application, when the computer-readable instructions are executed by the processor, as shown in Figure 2, the following method is also executed on the basis of the previous embodiment:

Step S105: receiving a video data reading instruction;

In the electronic device of the embodiment of the present application, when the computer-readable instructions are executed by the processor, as shown in FIG. 3 , the following methods are also executed:

Step S108: Receive static data reading instruction;

Step S109: Read the static data from the specified blank area of the RAM.

The embodiment of the present application also includes a receiving card with a large load. As shown in FIG. 4, the receiving card 10 includes a receiving module 101, a writing module 102, a mapping module 103 and a random dynamic memory 104, wherein:

The receiving module 101 is connected with the writing module and the mapping module, and is used to receive the merged routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer.

Writing module 102, connected with receiving module, mapping module, random dynamic memory, for writing video data in random dynamic memory through horizontal pre-sorting table, and rewriting video data into random dynamic memory by new row number middle.

The random dynamic memory 104 is connected with the writing module and the mapping module, and is used for storing video data.

The mapping module 103 is connected with the receiving module, the writing module and the random dynamic memory, and is used for mapping the line numbers of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain new line numbers of the video data.

The receiving card 10 of the present embodiment realizes the storage of video data, specifically can refer to the realization method of the large loading of the receiving card of the aforementioned embodiment, and the specific steps include:

Step S101 to step S104 are the storage process of the video data. For details, refer to the relevant description of the above-mentioned embodiments, which will not be repeated here.

Specifically, as shown in FIG. 4, a receiving card with a large load in the embodiment of the present application further includes a reading module 105 on the basis of the previous embodiment, wherein:

The receiving module 101 is connected with the reading module for receiving video data reading instructions;

The reading module 105 is connected with the random dynamic memory, and is used for continuously reading the video data stored in the random dynamic memory in the form of pixels by merging the routing table, the horizontal pre-arrangement table, and the vertical pre-arrangement table.

Step S104: rewrite the video data into the random dynamic memory through the new line number.

Step S105: Receive a video data reading instruction.

Steps S101 to S106 are the process of storing and reading the video data. For details, refer to the relevant descriptions of the above-mentioned embodiments, and details will not be repeated here.

Specifically, the writing module 102 of the embodiment of the present application is also used to write static data into a specified blank area of the random dynamic memory 104; the random dynamic memory 104 is also used to store static data.

Specifically, the receiving module 101 is also used to receive a static data reading instruction; the reading module 105 is also used to read the static data from the designated blank area of the random dynamic memory 104 .

Embodiments of the present invention also include one or more readable storage media storing computer-readable instructions, and when the computer-readable instructions are executed by one or more processors, one or more processors are executed as shown in FIG. 1 step:

Specifically, in the readable storage medium of the embodiment of the present application, when the computer-readable instructions are executed by one or more processors, one or more processors also perform the steps shown in Figure 2:

Step S105: receiving a video data reading instruction;

Specifically, in the readable storage medium of the present application, when the computer-readable instructions are executed by one or more processors, one or more processors also perform the steps shown in Figure 3:

Specifically, the readable storage medium of the present application, when the computer-readable instructions are executed by one or more processors, makes one or more processors also perform the steps shown in Figure 3:

Step S108: Receive static data reading instruction;

Step S109: Read the static data from the specified blank area of the RAM.

When the computer-readable instructions of the readable storage medium in the embodiment of the present application are executed by one or more processors, the description of the steps performed by the one or more processors is the same as that of the embodiment of the present application for realizing the large load of the receiving card. The instructions are the same and will not be repeated here. The readable storage medium provided in this embodiment includes a non-volatile readable storage medium and a volatile readable storage medium. The embodiment of the present application also includes a data processing system. As shown in FIG. 5, the data processing system includes the receiving card 10 of the above embodiment, and also includes a host computer 20 and an LED display 30, wherein:

The upper computer 20 is connected to the receiving card 10 in communication, and is used to send the combined routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data to the receiving card 10 .

The receiving card 10 is communicatively connected with the host computer 20 and the LED display screen 20 for rewriting and reading video data.

The LED display screen 30 is communicatively connected with the receiving card 10 and used for corresponding display according to the video data read by the receiving card 10 .

The application has been further described above with the help of specific embodiments, but it should be understood that the specific description here should not be interpreted as limiting the essence and scope of the application. Those of ordinary skill in the art will understand the above-mentioned Various modifications made in the embodiments all belong to the protection scope of the present application.

Claims

A method for realizing a large loading of a receiving card, including:

Receive the merged routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

Writing the video data into a random dynamic memory through the horizontal pre-scheduling table;

Mapping the row number of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain a new row number of the video data;

rewrite the video data into the random dynamic memory through the new row number.
The method for realizing the large loading of the receiving card according to claim 1, further comprising:

Receive video data reading instructions;

The video data stored in the random dynamic memory is continuously read in the form of pixels through the combined routing table, horizontal pre-arrangement table, and vertical pre-arrangement table.
The method for realizing the large loading of the receiving card according to claim 2, further comprising:

Writing the static data into the specified blank area of the random dynamic memory.
The method for realizing the large loading of the receiving card according to claim 3, further comprising:

Receive static data read instructions;

The static data is read from a specified blank area of the random dynamic memory.
The method for realizing large loading of the receiving card according to claim 1, wherein, before the combined wiring table, horizontal pre-arrangement table and vertical pre-arrangement table of the receiving host computer, it also includes:

After the host computer merges the wire routing table, row extraction list, and point sampling table by using a preset merging strategy, the merged routing table generated by the merger is obtained.
The method for realizing the large loading of the receiving card according to claim 5, wherein, before the combined wiring table, horizontal pre-arrangement table and vertical pre-arrangement table of the receiving host computer, it also includes:

After the host computer generates the horizontal pre-arrangement table and the vertical pre-arrangement table according to the row extraction table and the preset row-column conversion strategy, the horizontal pre-arrangement table and the vertical pre-arrangement table are acquired.
The method for realizing a large loading of the receiving card according to claim 5, wherein the routing table is a transmission sequence table of the video data on the LED display light points; A correspondence table between data and row decoding chip pins and column drive chip pins; the snapshot table is a correspondence table between the video data and the light points of the LED display screen.
An electronic device, including a processor and a memory, the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the following method is executed:

Receive the merged routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

Writing the video data into a random dynamic memory through the horizontal pre-scheduling table;

Mapping the row number of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain a new row number of the video data;

rewrite the video data into the random dynamic memory through the new row number.
1. An electronic device as claimed in claim 8, wherein, when the computer readable instructions are executed by the processor, the following methods are further executed:

Receive video data reading instructions;

The video data stored in the random dynamic memory is continuously read in the form of pixels through the combined routing table, horizontal pre-arrangement table, and vertical pre-arrangement table.
1. An electronic device as claimed in claim 9, wherein, when the computer readable instructions are executed by the processor, the following methods are further executed:

Writing the static data into the specified blank area of the random dynamic memory.
An electronic device as claimed in claim 10, wherein, when said computer readable instructions are executed by said processor, the following methods are further performed:

Receive static data read instructions;

The static data is read from a specified blank area of the random dynamic memory.
A receiving card with a large load, wherein the receiving card includes a receiving module, a writing module, a mapping module and a random dynamic memory, wherein:

The receiving module is connected with the writing module and the mapping module, and is used to receive the combined wiring table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

The writing module is connected with the receiving module, the mapping module, and the random dynamic memory, and is used to write the video data into the random dynamic memory through the horizontal pre-sorting table, and through the new line number rewriting the video data into the random dynamic memory;

The random dynamic memory is connected with the writing module and the mapping module, and is used to store the video data;

The mapping module is connected with the receiving module, the writing module, and the random dynamic memory, and is used to map the line numbers of the video data stored in the random dynamic memory through the vertical pre-sorting table, to obtain The new line number of the video data.
The receiving card with large load as claimed in claim 12, further comprising a reading module, wherein:

The receiving module is connected to the reading module and is used to receive video data reading instructions;

The reading module is connected to the random dynamic memory, and is used to continuously read and store in the random dynamic memory in the form of pixels through the combined routing table, horizontal pre-arrangement table, and vertical pre-arrangement table. of the video data.
The receiving card with large load as claimed in claim 13, wherein,

The writing module is also used to write static data into a specified blank area of the random dynamic memory;

The random dynamic memory is also used to store the static data.
The receiving card with large load as claimed in claim 14, wherein,

The receiving module is also used to receive static data reading instructions;

The reading module is further configured to read the static data from a designated blank area of the random dynamic memory.
One or more readable storage media storing computer-readable instructions, wherein, when the computer-readable instructions are executed by one or more processors, the one or more processors are caused to perform the following steps:

Receive the merged routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer;

Writing the video data into a random dynamic memory through the horizontal pre-scheduling table;

Mapping the row number of the video data stored in the random dynamic memory through the vertical pre-sorting table to obtain a new row number of the video data;

rewrite the video data into the random dynamic memory through the new row number.
The readable storage medium of claim 16, wherein, when the computer-readable instructions are executed by one or more processors, the one or more processors further perform the following steps:

Receive video data reading instructions;

The video data stored in the random dynamic memory is continuously read in the form of pixels through the combined routing table, horizontal pre-arrangement table, and vertical pre-arrangement table.
The readable storage medium of claim 17, wherein, when the computer-readable instructions are executed by one or more processors, the one or more processors further perform the following steps:

Writing the static data into the specified blank area of the random dynamic memory.
The readable storage medium of claim 18, wherein, when the computer-readable instructions are executed by one or more processors, the one or more processors further perform the following steps:

Receive static data read instructions;

The static data is read from a specified blank area of the random dynamic memory.
A data processing system, wherein the data processing system includes the receiving card according to any one of claims 12-15, and also includes a host computer and an LED display screen, wherein:

The upper computer is communicatively connected with the receiving card, and is used to send the combined routing table, horizontal pre-arrangement table, vertical pre-arrangement table and video data to the receiving card;

The receiving card is connected to the upper computer and the LED display for rewriting and reading the video data;

The LED display is connected in communication with the receiving card, and is used for corresponding display according to the video data read by the receiving card.