CN113271456A - Video display system and method of LED display screen, intelligent device and storage medium - Google Patents
Video display system and method of LED display screen, intelligent device and storage medium Download PDFInfo
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- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
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- H—ELECTRICITY
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- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
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Abstract
The application is suitable for the technical field of video display, and provides a video display system, a method, intelligent equipment and a storage medium of an LED display screen, wherein the system comprises: the video playing box is connected with the LED display screen and comprises a video detection module and a video processing module; the video detection module is used for acquiring configuration information of the LED display screen; detecting a video signal and converting the video signal into a high-definition multimedia signal; and the video processing module is used for dividing the high-definition multimedia signal into multiple transition video signals and transmitting the multiple transition video signals to the LED display screen according to the configuration information, so that the LED display screen performs video display according to the multiple transition video signals. The video transmission method and the video transmission system simplify the system architecture, facilitate installation and later maintenance of users, reduce level processing in the video transmission process, effectively reduce the video delay rate, and effectively enhance user experience.
Description
Technical Field
The application belongs to the technical field of video display, and particularly relates to a video display system and method of an LED display screen, intelligent equipment and a storage medium.
Background
With the development of the 4K/8K ultra-high definition technology in the year, the support and policy of various countries on the 4K/8K technology are supported, and the ultra-high definition technology becomes the necessary way for the future of the actual industry. Besides the physical size advantage, the LED display screen gradually develops the small-pitch and micro-pitch technology in recent years, so that the loading capacity of the display screen is higher and higher under the same physical size, and the 4K/8K ultra-high-definition display technology also starts to receive more and more attention and exploration in the LED display industry. However, since the LED display is formed by splicing a plurality of box modules, the box modules are independent of each other and have a large span, which also brings about difficulties in video transmission, control and synchronization.
The existing video processing system is complex in structure, high in difficulty of system installation and later maintenance, and video delay is easy to occur due to the fact that videos are processed in multiple layers.
Disclosure of Invention
In view of this, embodiments of the present application provide a video display system and method for an LED display screen, an intelligent device, and a storage medium, so as to solve the problems in the prior art that the architecture of a video processing system is complex, the difficulty of system installation and post-maintenance is high, and video delay is likely to occur when video is processed in multiple layers.
A first aspect of an embodiment of the present application provides a video display system with an LED display screen, including:
the LED display screen is connected with the video playing box, and the video playing box comprises a video detection module and a video processing module;
the video detection module is used for acquiring configuration information of the LED display screen;
the video detection module is also used for detecting a video signal and converting the video signal into a high-definition multimedia signal;
the video processing module is used for dividing the high-definition multimedia signal into multiple transition video signals according to the configuration information and transmitting the multiple transition video signals to the LED display screen, so that the LED display screen performs video display according to the multiple transition video signals.
In a possible implementation manner of the first aspect, the configuration information includes a blocking manner of an LED display screen, and the video processing module includes:
and the first video processing unit is used for dividing the high-definition multimedia signal into a plurality of paths of transition video signals corresponding to the blocking modes according to the blocking modes of the LED display screen and transmitting the signals to the LED display screen so that the LED display screen performs video display according to the plurality of paths of transition video signals.
In a possible implementation manner of the first aspect, the first video processing unit is specifically configured to:
if the blocking mode of the display screen is 2 multiplied by 2, the high-definition multimedia signal is divided into 4 paths of transition video signals and transmitted to the LED display screen, so that the LED display screen performs video display according to the 4 paths of transition video signals;
if the block dividing mode of the display screen is 4 multiplied by 4, the high-definition multimedia signal is divided into 16 paths of transition video signals and transmitted to the LED display screen, so that the LED display screen performs video display according to the 16 paths of transition video signals.
In a possible implementation manner of the first aspect, the video detection module is further configured to obtain video information corresponding to the video signal, where the video information includes a resolution of a video to be displayed;
the configuration information includes a target resolution of the LED display screen, and the video processing module further includes:
and the second video processing unit is used for compressing or stretching the video to be displayed according to the resolution of the video to be displayed and the target resolution of the LED display screen.
In a possible implementation manner of the first aspect, the video detection module is connected to the video processing module through a high-definition multimedia interface of a first version;
the video playing box is connected with the LED display screen through a high-definition multimedia interface of a second version.
In a possible implementation manner of the first aspect, the video detection module includes an SoC chip on a chip, and the video processing module includes a field programmable gate array FPGA.
In a possible implementation manner of the first aspect, the video playing box is further connected with a customer premises equipment through an RJ45 interface.
A second aspect of the embodiments of the present application provides a video display method of a video display system using the above-mentioned LED display screen, where the video display method includes:
acquiring configuration information of the LED display screen through a video detection module;
detecting a video signal through a video detection module, and converting the video signal into a high-definition multimedia signal;
and dividing the high-definition multimedia signal into multiple transition video signals and transmitting the multiple transition video signals to the LED display screen through a video processing module according to the configuration information, so that the LED display screen performs video display according to the multiple transition video signals.
A third aspect of the embodiments of the present application provides a smart device, which includes a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, wherein the processor, when executing the computer readable instructions, implements the steps of the video display method as described above.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium storing computer-readable instructions, which, when executed by a processor, implement the steps of the video display method as described above.
A fifth aspect of embodiments of the present application provides a computer-readable instruction product, which, when run on a smart device, causes the smart device to implement the steps of the method as described above.
Compared with the prior art, the embodiment of the application has the advantages that: the video display system of LED display screen includes video broadcast box and LED display screen in this application, video broadcast box includes video detection module and video processing module, then acquires the configuration information of LED display screen through video detection module, detects video signal, and will video signal converts high definition multimedia signal into, through video processing module basis configuration information will high definition multimedia signal cut apart into behind the multichannel transition video signal transmission extremely LED display screen, so that the LED display screen basis multichannel transition video signal carries out video display. The structure of the playing box and the LED display screen is adopted in the application, the system structure is simplified, convenience is brought to user installation and later maintenance, meanwhile, level processing in the video transmission process is reduced, the video delay rate can be effectively reduced, and user experience is effectively enhanced.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a system architecture diagram of a video display system with an LED display screen provided in an embodiment of the present application;
FIG. 2 is a block diagram of a video processing module in a video display system of an LED display screen according to an embodiment of the present disclosure;
fig. 3 to fig. 7 are schematic application scenarios of a video display system of an LED display screen according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a video display method of a video display system using an LED display screen according to an embodiment of the present application;
fig. 9 is a schematic diagram of an intelligent device provided in an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
In addition, in the description of the present application, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The video display system of the LED display screen can be applied to intelligent devices such as conference screens and all-in-one machines, and the specific type of the intelligent devices is not limited.
ExamplesFirstly, the method comprises the following steps:
fig. 1 shows a system architecture diagram of a video display system of an LED display screen provided in an embodiment of the present application, which is detailed as follows: for convenience of explanation, only portions related to the embodiments of the present invention are shown.
Referring to fig. 1, the video display system includes: a video playing box 11 and an LED display screen 12. The video playing box 11 is connected with the LED display 12.
In some embodiments, the video playing box 11 and the LED display 12 are connected to an information configuration terminal. The information configuration end is used for configuring the LED display screen 12 and is also used for configuring the video playing box 11.
In the embodiment of the present application, a user needs to perform configuration when installing the video display system of the LED display 12, where the configuration includes configuration of the LED display 12. In some embodiments, the configuration of the video play box 11 described above is also included.
The information configuration end and the video playing box 11 are connected in a wired mode through a serial port technology, and wireless connection can be established through technologies such as a WIFI technology or a 3G/4G/5G technology. The video playing box 11 and the LED display screen 12 are connected by a serial port technology.
In the embodiment of the present application, the video playing box 11 includes a video detection module 111 and a video processing module 112.
The video detection module 111 is configured to obtain configuration information of the LED display 12. Specifically, the configuration information of the LED display screen 12 that is acquired and uploaded by the information configuration terminal is acquired.
In the embodiment of the present application, the LED display screen 12 is formed by splicing a plurality of box modules. The configuration of the LED display 12 by the user includes a blocking manner of the display, where blocking refers to dividing the LED display 12 into a plurality of blocks, for example, 2 × 2, 4 × 4, and the configuration also includes a configuration of a frame rate. The configuration information of the LED display 12 includes a blocking mode of the LED display 12 and a frame rate of display.
In some embodiments, the configuration information further includes a blocking direction of the LED display 12, specifically including a horizontal blocking and a vertical blocking.
The video detection module 111 is further configured to detect a video signal and convert the video signal into a high-definition multimedia signal.
The video processing module 112 is configured to divide the high-definition multimedia signal into multiple transition video signals according to the configuration information, and transmit the multiple transition video signals to the LED display screen 12, so that the LED display screen 12 performs video display according to the multiple transition video signals.
In this embodiment of the application, after the video signal is detected, the video detection module 111 converts the video signal into a high-definition multimedia signal, so as to realize the playing and displaying of a high-definition video. The video processing module 112 divides the high-definition multimedia signal into multiple transition video signals according to the configuration information of the LED display screen 12, and synchronously transmits the multiple transition video signals to the LED display screen 12, where the LED display screen 12 includes a receiving card, and the receiving card in the LED display screen 12 receives the multiple transition video signals and performs video display based on the multiple transition video signals.
In some embodiments, the version of the receiving card in the LED display 12 may be selected according to the application scenario and the cost requirement.
In some embodiments, the resolution of each of the transition video signals is less than the resolution of the pre-segmentation high definition multimedia signal.
In some embodiments, the video processing module 112 divides the high-definition multimedia signal into a specified number of channels of transition video signals.
In the embodiment of the present application, the video playing box 11 is connected to the LED display screen 12, so that the system has a simple structure, and is convenient for a user to install, use and maintain in a later period. The video detection module 111 and the video processing module 112 in the video playing box 11 are independent replaceable modules.
In a possible implementation, the video detection module 111 includes an SoC chip on chip, and the video processing module 112 includes a field programmable gate array FPGA. In other embodiments, a suitable module can be selected to replace the SoC chip and the FPGA according to an actual application scenario, a cost budget, an assembly requirement of the display screen, and the like.
As a possible implementation manner of the present application, the configuration information includes a blocking manner of the LED display 12, and as shown in fig. 2, the video processing module 112 includes:
the first video processing unit 1121 is configured to divide the high-definition multimedia signal into multiple transition video signals corresponding to the blocking manner according to the blocking manner of the LED display screen 12, and transmit the multiple transition video signals to the LED display screen 12, so that the LED display screen 12 performs video display according to the multiple transition video signals.
In the embodiment of the present application, the LED display screen 12 is pre-blocked, and the number of signal dividing paths corresponding to the blocking mode of the LED display screen 12 is preset. The video processing module 112 divides the high-definition multimedia signal into transition video signals of the number corresponding to the blocking mode of the LED display 12.
In a possible implementation manner, the first video processing unit 1121 is specifically configured to:
if the blocking mode of the display screen is 2 × 2, the high-definition multimedia signal is divided into 4 paths of transition video signals, and the 4 paths of transition video signals are transmitted to the LED display screen 12, so that the LED display screen 12 performs video display according to the 4 paths of transition video signals.
If the blocking mode of the display screen is 4 × 4, the high-definition multimedia signal is divided into 16 channels of transition video signals and transmitted to the LED display screen 12, so that the LED display screen 12 performs video display according to the 16 channels of transition video signals.
As a possible implementation manner of this application, the video detection module 111 is further configured to obtain video information corresponding to the video signal, where the video information includes a resolution of a video to be displayed.
The configuration information includes a target resolution of the LED display 12, and as shown in fig. 2, the video processing module 112 further includes:
the second video processing unit 1122 is configured to perform compression processing or stretching processing on the video to be displayed according to the resolution of the video to be displayed and the target resolution of the LED display screen 12.
In this embodiment, the resolution of the video to be displayed is an input resolution, and the target resolution is an output resolution. If the resolution of the video to be displayed is the same as the target resolution, the second video processing unit 1122 does not need to perform compression processing or stretching processing on the video to be displayed.
If the resolution of the video to be displayed is higher than the target resolution, compressing the video to be displayed; if the resolution of the video to be displayed is lower than the target resolution, stretching the video to be displayed;
for example, if the video to be displayed has a resolution of 4k and the target resolution of the LED display 12 is also 4k, the second video processing unit 1122 does not need to perform compression processing or stretching processing on the video to be displayed. If the video to be displayed has a resolution of 4k and the target resolution of the LED display 12 is 8k, the second video processing unit 1122 needs to stretch the video to be displayed. If the video to be displayed has a resolution of 8k and the target resolution of the LED display 12 is 4k, the second video processing unit 1122 needs to compress the video to be displayed.
As a possible implementation manner of the present application, the video detection module 111 is connected to the video processing module 112 through a high-definition multimedia interface of a first version; the video playing box 11 is connected with the LED display screen 12 through a second version of high definition multimedia interface. In this embodiment of the present application, the video playing box 11 includes a signal input interface, and the signal input interface is a high definition multimedia interface of a first version.
In this embodiment, the video detection module 111 and the video processing module 112 transmit video signals through a high-definition multimedia Interface, and transmit control signals through a Service Provider Interface (SPI), a Universal Asynchronous Receiver/transmitter (UART), an I2C bus (I2C), and the like.
For example, the transmission of the video detection module 111 and the video processing module 112 is through an HDMI2.0 interface, and the video playing box 11 and the LED display screen 12 are connected through an HDMI1.4 interface, so that playing of 4k ultra high definition video can be realized.
For example, the transmission of the video detection module 111 and the video processing module 112 is through an HDMI2.1 interface, and the video playing box 11 and the LED display screen 12 are connected through an HDMI2.0 interface, so that playing of 8k ultra high definition video can be realized.
Taking an application scenario as an example, as shown in fig. 3, the video detection module 111 is an SoC chip, the video processing module is an FPGA, the LED display screen 12 is divided into 4 longitudinal blocks, each block includes a plurality of receiving cards, an input interface of the video playing box 11 is HDMI2.0, the SoC chip is connected with the FPGA through HDMI2.0, and the video playing box 11 is connected with the LED display screen 12 through 4 paths of HDMI 1.4.
Taking an application scenario as an example, as shown in fig. 4, the video detection module 111 is an SoC chip, the video processing module is an FPGA, the LED display screen is divided into 4 longitudinal blocks, each block includes a plurality of receiving cards, an input interface of the video playing box is HDMI2.1, the SoC chip is connected with the FPGA through HDMI2.1, and the video playing box is connected with the LED display screen through 4 paths of HDMI 2.0.
As a possible implementation manner of the present application, the video playing box is further connected to a Customer Premise Equipment (CPE) through an RJ45 interface. For example, the video playing box is in communication connection with the 5G CPE through an RJ45 interface.
As a possible implementation manner of the present application, the video playing box further includes a typecusb interface.
Taking an application scenario as an example, as shown in fig. 5, the video detection module 111 is an SoC chip, the video processing module is an FPGA, the LED display screen is divided into 4 horizontal blocks, each block includes a plurality of receiving cards, an input interface of the video playing box is HDMI2.1, the SoC chip is connected with the FPGA through HDMI2.1, and the video playing box is connected with the LED display screen through 4 paths of HDMI 2.0. The video playing box is connected with the 5G CPE through an RJ45 interface, and the video playing box is also provided with a TypercUSB interface.
Taking an application scenario as an example, as shown in fig. 6, the video playing box includes an SoC chip and an FPGA, the LED display screen adopts a 2 × 2 blocking manner, each block includes a plurality of receiving cards, an input interface of the video playing box is HDMI2.1, the SoC chip and the FPGA are connected through HDMI2.1, the video playing box and the LED display screen are connected through 4 paths of HDMI2.0, the video playing box is connected with 5G CPE through an RJ45 interface, and the video playing box is further provided with a typercuss interface.
Taking an application scenario as an example, as shown in fig. 7, the video playing box includes an SoC chip and an FPGA, the LED display screen is divided into 16 regions by 4 × 4 blocks, an input interface of the video playing box is HDMI2.1, the SoC chip is connected with the FPGA through HDMI2.1, the video playing box is connected with the LED display screen through 16 paths of HDMI1.4, the video playing box is connected with 5G CPE through an RJ45 interface, and the video playing box is further provided with a typercuss interface.
As a possible implementation manner of the present application, the video processing module is further configured to perform video preprocessing on a video to be displayed. The purpose of video preprocessing is to improve the video quality and to obtain a video that meets the requirements in preparation for subsequent display. As a possible implementation manner, the video preprocessing in the embodiment of the present application includes image filtering and/or illumination normalization.
The purpose of the image filtering is to filter out some noise points present in the video to be displayed.
As a possible implementation manner of the present application, filtering algorithms such as median filtering or bilateral filtering may be selected to process a video to be displayed. In particular, median filtering is a nonlinear signal processing technology which is based on a sorting statistical theory and can effectively suppress noise, and the basic principle of median filtering is to replace the value of one point in a digital image or a digital sequence by the median of all point values in a neighborhood of the point and enable the surrounding pixel values to be close to the true value, thereby eliminating an isolated noise point. Bilateral filtering (Bilateral filter) is a nonlinear filtering method, and is a compromise process combining the spatial proximity and the pixel value similarity of an image, and simultaneously considers the spatial information and the gray level similarity to achieve the purpose of edge-preserving and denoising.
In the embodiment of the application, the video quality is improved by performing video preprocessing on the image to be displayed, so that the video display effect is effectively enhanced.
It is from top to bottom, in this application embodiment, the video display system of LED display screen includes video broadcast box and LED display screen, video broadcast box includes video detection module and video processing module, then acquires the configuration information of LED display screen through the video detection module, detects video signal, and will video signal converts high definition multimedia signal into, through the video processing module basis configuration information will high definition multimedia signal is cut apart into behind the multichannel transition video signal transmission extremely the LED display screen, so that the LED display screen basis multichannel transition video signal carries out video display. The structure of the playing box and the LED display screen is adopted in the application, the system structure is simplified, convenience is brought to user installation and later maintenance, meanwhile, level processing in the video transmission process is reduced, the video delay rate can be effectively reduced, and user experience is effectively enhanced.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Example two:
corresponding to the video display system with LED display screen described in the foregoing embodiment, fig. 8 shows a flow of implementing a video display method of the video display system with LED display screen provided in this embodiment, where the flow of the method includes steps S21 to S23. The specific realization principle of each step is as follows:
step S21: and acquiring configuration information of the LED display screen through the video detection module.
The configuration information of the LED display screen comprises the blocking mode of the LED display screen and the frame rate of display.
In some embodiments, the configuration information further includes a blocking direction of the LED display screen, specifically including a horizontal blocking direction and a vertical blocking direction.
Step S22: and detecting a video signal through a video detection module, and converting the video signal into a high-definition multimedia signal.
In the embodiment of the application, after the video signal is detected by the video detection module, the video signal is converted into the high-definition multimedia signal so as to realize the playing and displaying of the high-definition video.
Step S23: and dividing the high-definition multimedia signal into multiple transition video signals and transmitting the multiple transition video signals to the LED display screen through a video processing module according to the configuration information, so that the LED display screen performs video display according to the multiple transition video signals.
The video processing module divides the high-definition multimedia signals into multiple transitional video signals according to the configuration information of the LED display screen, the multiple transitional video signals are synchronously transmitted to the LED display screen, the LED display screen comprises a receiving card, the multiple transitional video signals are received by the receiving card in the LED display screen, and video display is carried out based on the multiple transitional video signals.
As a possible implementation manner of the present application, the configuration information includes a blocking manner of the LED display 12, and the step S23 specifically includes:
and according to the blocking mode of the LED display screen, dividing the high-definition multimedia signal into a plurality of paths of transition video signals corresponding to the blocking mode, and transmitting the signals to the LED display screen.
In a possible implementation manner, if the block division manner of the display screen is 2 × 2, the high-definition multimedia signal is divided into 4 paths of transition video signals, and the 4 paths of transition video signals are transmitted to the LED display screen.
In a possible implementation manner, if the display screen is partitioned into 4 × 4 blocks, the high-definition multimedia signal is divided into 16 channels of transition video signals and transmitted to the LED display screen.
The video display method in this embodiment adopts the video display system of the LED display screen described in the first embodiment, and specific contents of step S21, step S22, and step S23 refer to the system embodiment and are not described herein again.
In this application embodiment, the video display system of LED display screen includes video broadcast box and LED display screen, video broadcast box includes video detection module and video processing module, then acquires the configuration information of LED display screen through video detection module, detects video signal, and with video signal converts high definition multimedia signal into, through video processing module basis transmit extremely after the high definition multimedia signal is cut apart into multichannel transition video signal to the LED display screen, so that the LED display screen basis multichannel transition video signal carries out video display. The structure of the playing box and the LED display screen is adopted in the application, the system structure is simplified, convenience is brought to user installation and later maintenance, meanwhile, level processing in the video transmission process is reduced, the video delay rate can be effectively reduced, and user experience is effectively enhanced.
It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/units, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and specific reference may be made to the part of the embodiment of the method, which is not described herein again.
Embodiments of the present application also provide a computer readable storage medium, which stores computer readable instructions, and when the computer readable instructions are executed by a processor, the steps of the video display method shown in fig. 8 and the steps of the video display method of the video display system using any one of the LED display screens shown in fig. 1 to 7 are implemented.
The embodiment of the present application further provides an intelligent device, which includes a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, and the processor executes the computer readable instructions to implement the steps of the video display method shown in fig. 8 and the steps of the video display method of the video display system using any one of the LED display screens shown in fig. 1 to 7.
Embodiments of the present application also provide a computer readable instruction product, which when run on a server, causes the server to execute the steps of implementing the video display method shown in fig. 8 and the steps of the video display method of the video display system using any one of the LED display screens shown in fig. 1 to 7.
Example three:
fig. 9 is a schematic diagram of an intelligent device provided in the third embodiment of the present application. As shown in fig. 9, the smart device 9 of this embodiment includes: a processor 90, a memory 91, and computer readable instructions 92 stored in the memory 91 and executable on the processor 90. The processor 90, when executing the computer readable instructions 92, implements the steps in the above-described embodiment of the video display method for the LED display screen, such as the steps S21-S23 shown in fig. 8. Alternatively, the processor 90, when executing the computer readable instructions 92, implements the functions of the modules/units in the above-described device embodiments, such as the modules described in fig. 1.
Illustratively, the computer readable instructions 92 may be partitioned into one or more modules/units that are stored in the memory 91 and executed by the processor 90 to accomplish the present application. The one or more modules/units may be a series of computer-readable instruction segments capable of performing specific functions, which are used to describe the execution process of the computer-readable instructions 92 in the smart device 9. For example, the computer readable instructions 92 may be divided into a video detection module and a video processing module, and the specific functions of each module are as follows:
the video detection module is used for acquiring configuration information of the LED display screen;
the video detection module is also used for detecting a video signal and converting the video signal into a high-definition multimedia signal;
the video processing module is used for dividing the high-definition multimedia signal into multiple transition video signals according to the configuration information and transmitting the multiple transition video signals to the LED display screen, so that the LED display screen performs video display according to the multiple transition video signals.
The intelligent device 9 can be a conference screen or an all-in-one machine. The smart device may include, but is not limited to, a processor 90, a memory 91. Those skilled in the art will appreciate that fig. 9 is merely an example of a smart device 9 and does not constitute a limitation of the smart device 9 and may include more or fewer components than shown, or some components in combination, or different components, for example the smart device may also include input output devices, network access devices, buses, etc.
The Processor 90 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 91 may be an internal storage unit of the intelligent device 9, such as a hard disk or a memory of the intelligent device 9. The memory 91 may also be an external storage device of the Smart device 9, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the Smart device 9. Further, the memory 91 may also include both an internal storage unit and an external storage device of the smart device 9. The memory 91 is used to store the computer readable instructions and other programs and data required by the smart device. The memory 91 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/intelligent device and method may be implemented in other ways. For example, the above-described apparatus/smart device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by the present application, and can also be realized by hardware related to computer readable instructions, which can be stored in a computer readable storage medium, and when the computer readable instructions are executed by a processor, the steps of the above described method embodiments can be realized. Wherein the computer readable instructions comprise computer program code which may be in source code form, object code form, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer-readable instruction code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A video display system for an LED display screen, comprising: the LED display screen is connected with the video playing box, and the video playing box comprises a video detection module and a video processing module;
the video detection module is used for acquiring configuration information of the LED display screen;
the video detection module is also used for detecting a video signal and converting the video signal into a high-definition multimedia signal;
the video processing module is used for dividing the high-definition multimedia signal into multiple transition video signals according to the configuration information and transmitting the multiple transition video signals to the LED display screen, so that the LED display screen performs video display according to the multiple transition video signals.
2. The video display system of claim 1, wherein the configuration information comprises a blocking pattern of the LED display screen, and wherein the video processing module comprises:
and the first video processing unit is used for dividing the high-definition multimedia signal into a plurality of paths of transition video signals corresponding to the blocking modes according to the blocking modes of the LED display screen and transmitting the signals to the LED display screen so that the LED display screen performs video display according to the plurality of paths of transition video signals.
3. The video display system of claim 2, wherein the first video processing unit is specifically configured to:
if the blocking mode of the display screen is 2 multiplied by 2, the high-definition multimedia signal is divided into 4 paths of transition video signals and transmitted to the LED display screen, so that the LED display screen performs video display according to the 4 paths of transition video signals;
if the block dividing mode of the display screen is 4 multiplied by 4, the high-definition multimedia signal is divided into 16 paths of transition video signals and transmitted to the LED display screen, so that the LED display screen performs video display according to the 16 paths of transition video signals.
4. The video display system according to claim 1, wherein the video detection module is further configured to obtain video information corresponding to the video signal, where the video information includes a resolution of a video to be displayed;
the configuration information includes a target resolution of the LED display screen, and the video processing module further includes:
and the second video processing unit is used for compressing or stretching the video to be displayed according to the resolution of the video to be displayed and the target resolution of the LED display screen.
5. The video display system of claim 1, wherein the video detection module and the video processing module are connected via a first version of high definition multimedia interface;
the video playing box is connected with the LED display screen through a high-definition multimedia interface of a second version.
6. The video display system of claim 1, wherein the video detection module comprises an SoC chip on a chip and the video processing module comprises a Field Programmable Gate Array (FPGA).
7. The video display system of any one of claims 1 to 6, wherein the video play box is further connected to a customer premises equipment via an RJ45 interface.
8. A video display method of a video display system using the LED display screen according to any one of claims 1 to 7, the video display method comprising:
acquiring configuration information of the LED display screen through a video detection module;
detecting a video signal through a video detection module, and converting the video signal into a high-definition multimedia signal;
and dividing the high-definition multimedia signal into multiple transition video signals and transmitting the multiple transition video signals to the LED display screen through a video processing module according to the configuration information, so that the LED display screen performs video display according to the multiple transition video signals.
9. A smart device comprising a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, wherein the processor when executing the computer readable instructions performs the steps of the video display method of claim 8.
10. A computer readable storage medium storing computer readable instructions, wherein the computer readable instructions, when executed by a processor, implement the steps of the video display method of claim 8.
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