CN116916109A - Data transmission method, device, equipment, system and medium of LED display screen - Google Patents
Data transmission method, device, equipment, system and medium of LED display screen Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000006835 compression Effects 0.000 claims abstract description 70
- 238000007906 compression Methods 0.000 claims abstract description 70
- 238000004590 computer program Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 4
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
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Abstract
The application is suitable for the technical field of display screens, and provides a data transmission method, device, equipment, system and medium of an LED display screen. The data transmission method of the LED display screen specifically comprises the following steps: acquiring media data to be transmitted; the method comprises the steps of obtaining arrangement information of lamp points in a display screen, wherein the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; according to the arrangement information, carrying out compression coding on the media data in each arrangement direction by using corresponding coding parameters; and transmitting the code stream obtained by compression coding to the display screen so that the display screen displays the media data. The embodiment of the application can reduce the data quantity transmitted by the transmission interface and improve the display effect.
Description
Technical Field
The application belongs to the technical field of display screens, and particularly relates to a data transmission method, device, equipment, system and medium of an LED display screen.
Background
The high resolution brings the image quality enhancement and simultaneously brings great challenges to various links such as image acquisition, image transmission, image processing, image display and the like of an LED (Light-Emitting Diode) display system. Along with the improvement of image resolution, image storage and transmission bandwidth, the traditional display system needs to be provided with a transmission interface with stronger transmission capability, the data volume transmitted by the transmission interface becomes larger, the heating of the transmission interface is also more serious, and the production cost and the maintenance cost of the display system are greatly increased. Some related technologies propose schemes for compressing data transmitted by a transmission interface, but a traditional compression mode is adopted, so that a display effect of a display screen is poor.
Disclosure of Invention
The embodiment of the application provides a data transmission method, a device, equipment, a system and a medium for an LED display screen, which can reduce the data quantity transmitted by a transmission interface and solve the problem of poor display effect in the related technology.
An embodiment of the present application provides a data transmission method for an LED display screen, including: acquiring media data to be transmitted; the method comprises the steps of obtaining arrangement information of lamp points in a display screen, wherein the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; according to the arrangement information, carrying out compression coding on the media data in each arrangement direction by using corresponding coding parameters; and transmitting the code stream obtained by compression coding to the display screen so that the display screen displays the media data.
A data transmission device for an LED display screen provided in a second aspect of the present application includes: a media data acquisition unit for acquiring media data to be transmitted; the display device comprises an arrangement information acquisition unit, a display screen display unit and a display screen display unit, wherein the arrangement information acquisition unit is used for acquiring arrangement information of lamp points in the display screen, the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; the compression coding unit is used for carrying out compression coding on the media data according to the arrangement information and the corresponding coding parameters in each arrangement direction; and the data transmission unit is used for transmitting the code stream obtained by compression coding to the display screen so as to enable the display screen to display the media data.
A third aspect of the embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the steps of the data transmission method of the LED display screen when executing the computer program.
A fourth aspect of the embodiment of the present application provides a display system, including a control device and a display screen connected to the control device; the control equipment is used for acquiring media data to be transmitted; the method comprises the steps of obtaining arrangement information of lamp points in a display screen, wherein the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; according to the arrangement information, carrying out compression coding on the media data in each arrangement direction by using corresponding coding parameters; transmitting a code stream obtained by compression coding to the display screen; the display screen is used for displaying the media data based on the code stream.
A fifth aspect of the embodiments of the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the data transmission method of an LED display screen described above.
A sixth aspect of the embodiments of the present application provides a computer program product, which when run on an electronic device, causes the electronic device to perform the data transmission method of the LED display screen.
In the embodiment of the application, because the lamp points in the display screen can be in different arrangement modes, the different arrangement modes lead to different numbers of virtual pixels of the display screen in different arrangement directions, and further lead to different information presenting capacities of the display screen, the media data to be transmitted are obtained, the media data are compressed and encoded according to the arrangement information of the lamp points in the display screen in each arrangement direction by corresponding encoding parameters, and then the code stream obtained by the compression and encoding is transmitted to the display screen.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic implementation flow diagram of a data transmission method of an LED display screen according to an embodiment of the present application;
fig. 2 to fig. 4 are schematic diagrams illustrating different lamp point arrangements according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a specific structure of a display system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a data transmission device of an LED display screen according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a display system according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be protected by the present application based on the embodiments of the present application.
Along with the improvement of image resolution, image storage and transmission bandwidth, the traditional display system needs to be provided with a transmission interface with stronger transmission capability, the data volume transmitted by the transmission interface becomes larger, the heating of the transmission interface is also more serious, and the production cost and the maintenance cost of the display system are greatly increased. Some related art proposes a scheme for compressing data transmitted by a transmission interface, where the compression modes are generally the same in each direction of an image. In practical application, it is found that, by adopting the mode, when the display screen displays the compressed data transmitted by the transmission interface, the display screen has different information amounts presented in different directions, and has poor display consistency and poor display effect.
In view of this, the application provides a data transmission method for an LED display screen, which can combine the arrangement information of the light points on the display screen to perform adaptive compression coding, and improve the display effect of the display screen while reducing the data amount transmitted by the transmission interface.
In order to illustrate the technical scheme of the application, the following description is made by specific examples.
Fig. 1 shows a schematic implementation flow chart of a data transmission method of an LED display screen according to an embodiment of the present application, where the method may be applied to an electronic device.
The display system can comprise an upper computer, a control device, a receiving device and a display screen which are sequentially connected. The upper computer can be intelligent equipment such as a computer and a smart phone, and can be used for configuring a display screen and inputting video data to the control equipment. The control device may be a device such as a transmitting card, which may be used to transmit video data to a receiving device. The receiving device may be a control device such as a receiving card, and may be used for performing image processing on video data and controlling a display screen to display. The display screen may be an LED display screen, an OLED (Organic Light-Emitting Diode) display screen, or other types of display screens, to which the present application is not limited. The electronic device performing the method shown in fig. 1 may refer to a control device within a display system.
Specifically, the data transmission method of the LED display screen may include the following steps S101 to S104.
Step S101, media data to be transmitted is acquired.
In the embodiment of the present application, the media data to be transmitted refers to data that needs to be transmitted to a display screen for display, and may specifically refer to video data, image data or data in other multimedia formats.
In the embodiment of the application, the media data to be transmitted can be obtained from the upper computer by the control device, and can also be read from the internal memory of the control device, so that the application is not limited.
Step S102, obtaining arrangement information of the lamp points in the display screen.
In an embodiment of the present application, the display screen may be divided into a plurality of display modules, and each display module may refer to a light panel, a case packaged by the light panel, or other devices having display capabilities. The lamp panel can be composed of a driving chip and a lamp point, and the lamp point can be lightened under the control of the driving chip, so that the display module presents corresponding color development. For a single light panel, the interior of the single light panel may include one or more light points of one or more colors, each of which is one or more in number, and the light points together form one pixel of the display screen. And, the display screen may be composed of a plurality of virtual pixel units. Each virtual pixel unit consists of a plurality of light points, and specific color development can be realized through different color ratios of each light point inside. The plurality of light points are disposed within one or more pixels of the display screen.
As an example, as shown in fig. 2, the pixels 21 and 23 are each configured with two kinds of light points of red (R) and blue (B), and the pixel 22 is configured with a light point of green (G). The red and blue light of the pixel 21 and the green light of the pixel 22 may form a virtual pixel unit 24 as shown, and the red and blue light of the pixel 23 and the green light of the pixel 22 may form a virtual pixel unit 25 as shown.
As another example, as shown in fig. 3, the pixel 31 and the pixel 33 are each configured with two kinds of red and green light spots, and the pixel 32 is configured with two kinds of blue and green light spots. The red, green and blue light points of pixel 31 and 22 may constitute the illustrated virtual pixel unit 34, and the blue, green and red light points of pixel 22 and 23 may constitute the illustrated virtual pixel unit 35.
As another example, as shown in fig. 4, the light points of each pixel configuration are different, and the pixels 41 and 42 share the green light point, so that the red and blue light points of the pixels 41 and the green light point shared with the pixels 42 may constitute a virtual pixel unit 43 as shown in the figure; red and blue light spots of the pixel 42 and a green light spot common to the pixel 41 may constitute a virtual pixel unit 44 as shown.
Of course, the present application does not exclude the case of including a greater number of colors or a greater number of light points.
The arrangement information of the lamp points can represent the arrangement mode of the lamp points on the display screen and is used for indicating the number of virtual pixel units of the display screen in each arrangement direction. The number of virtual pixel units in different arrangement directions is different due to different arrangement modes, so that the display capability in the corresponding arrangement direction is affected. Wherein the arrangement direction includes, but is not limited to, transverse, longitudinal, oblique, etc.
In the embodiment of the application, the control equipment can acquire the arrangement information input by the user, can control the high-definition camera to shoot the display screen, and can determine the position of each lamp point in the display screen in an image segmentation mode, so as to acquire the arrangement information. The application is not limited in this regard.
Step S103, according to the arrangement information, the media data are compressed and encoded in each arrangement direction with corresponding encoding parameters.
Taking fig. 2 as an example, in a rectangular area of 4*4 pixels, the number of virtual pixel units on the horizontal line 26 is smaller than that of virtual pixel units on the vertical line 27, and when the capability of displaying information in the horizontal direction is lower than that in the vertical direction, when the media data without obvious difference in the information amount in the horizontal direction is displayed on the screen, the information amount which can be displayed in the horizontal direction is smaller, and the difference in the display effect in the horizontal direction and the vertical direction occurs. The more virtual pixel cells a display screen contains, the more obvious the effect that the arrangement of light points has on display uniformity.
In the embodiment of the application, according to the arrangement information, the number of the virtual pixel units in different arrangement directions can be referred to in compression coding. For the arrangement direction with fewer virtual pixel units, the display screen has weaker information presenting capability in the arrangement direction, and the loss of data information in the arrangement direction can be reduced during compression coding by setting corresponding coding parameters. For the arrangement direction with more virtual pixel units, the display screen has stronger information displaying capability in the arrangement direction, and the compression amount of data in the arrangement direction can be increased during compression coding by setting corresponding coding parameters. Further, the amount of information of the compressed data in different arrangement directions is different.
The compression coding can be realized by an encoder, and the encoder can discard information with smaller influence on image display or human eye observation preferentially when performing the compression coding, so that the influence of the compression coding on the image quality is reduced. By compression encoding the media data to be transmitted, the control device can obtain a compressed code stream.
Step S104, transmitting the code stream obtained by compression coding to a display screen so as to enable the display screen to display the media data.
In the embodiment of the application, after the compression coding is completed, the control device can transmit the code stream obtained by the compression coding to the display screen, so that the display screen can be lightened based on the code stream control lamp to display the media data. At this time, the information amounts in the different arrangement directions in the code stream are different, in the arrangement direction with less virtual pixel units, the information amount in the code stream is more, but the capability of the display screen for presenting information is weaker, in the arrangement direction with more virtual pixel units, the information amount in the code stream is less, but the capability of the display screen for presenting information is stronger, and finally, the information amounts actually presented in all the arrangement directions tend to be consistent, namely, the display effect tends to be consistent.
In the embodiment of the application, because the lamp points in the display screen can be in different arrangement modes, the different arrangement modes lead to different numbers of virtual pixels of the display screen in different arrangement directions, and further lead to different information presenting capacities of the display screen, the media data to be transmitted are obtained, the media data are compressed and encoded according to the arrangement information of the lamp points in the display screen in each arrangement direction by corresponding encoding parameters, and then the code stream obtained by the compression and encoding is transmitted to the display screen.
It can be understood that the data amount transmitted by the transmission interface is reduced, so that the hardware cost, the heating and the power consumption of the transmission interface are reduced, the transmission rate is improved, and the low-delay visual effect of the display screen is realized. In some embodiments, more data content may be transmitted on the original transmission interface, so that fewer transmission interfaces are required when the display screen with the same size is carried, which is helpful for improving the integration level of the product.
Before the display system is controlled to carry out data transmission, a user can splice the display modules to form a display screen. Specifically, referring to fig. 5, a user may connect a control device (e.g., a transmitting card), a receiving device (e.g., a receiving card), a display screen. The control device can be connected with one or more receiving devices in the receiving device array through the transmission interface, the receiving device array comprises a plurality of receiving devices, and each receiving device can be connected with one or more display modules.
After the splicing is completed, in step S103, the control device may perform compression encoding on the media data according to the arrangement information.
Specifically, the control device may determine information redundancy in each arrangement direction according to the number of virtual pixel units in each arrangement direction, and perform compression encoding on media data according to encoding parameters corresponding to the information redundancy in each arrangement direction.
Wherein, the information redundancy is the retention degree of the information. The more the number of virtual pixel units in a certain arrangement direction, the lower the information redundancy in the arrangement direction, and the lower the information retention degree in the arrangement direction during compression encoding.
In some embodiments, the encoding parameter may refer to a compression rate, and according to the information redundancy in each arrangement direction, the compression rate in each arrangement direction may be determined, so as to perform compression encoding on the media data according to the compression rate.
Wherein, the Compression ratio (Compression rate) represents the ratio between the data amount of the data after Compression and the data amount of the data before Compression. It will be appreciated that the lower the information redundancy, the lower the compression ratio, the more the amount of information lost, and the lower the degree of information retention.
Continuing with the description of fig. 2 as an example, the number of virtual pixel units in the horizontal direction is small, and the capability of presenting information is weak, so that the information amount in the vertical direction is more in the code stream by increasing the compression rate. When the display screen displays media data, the capability of displaying information in the transverse direction is weaker than that in the transverse direction, but the amount of information in the transverse direction in the code stream is more than that in the longitudinal direction, so that the definition restored in the transverse direction and the longitudinal direction tends to be consistent.
It will be appreciated that the control device may obtain a preset compression rate and adjust the preset compression rate. For example, for an arrangement direction in which the number of virtual pixel units is small, a preset compression rate may be increased in value. For another example, for the arrangement direction with a large number of virtual pixel units, the preset compression rate can be reduced, and in this way, the data volume of the compressed data is smaller due to the reduction of the compression rate, so that the data volume required to be transmitted by the transmission interface can be further reduced, and the transmission rate is improved.
Accordingly, in step S104, the control device may transmit the code stream to the receiving device through the transmission interface, and decode the code stream to obtain decoded media data. Then, the decoded media data is displayed on a control display screen through a receiving device.
The decoding of the code stream can be realized by a decoder arranged in the control device. After the receiving device obtains the decoded media data, a driving signal can be output to each display module of the display screen, and the driving signal can be used for controlling a driving chip of the display module to display the decoded media data.
In some embodiments, the receiving device may decode the code stream according to the arrangement information to obtain the media data. Specifically, the fewer the number of the virtual pixel units in a certain arrangement direction, the higher the reduction degree of information in decoding, and the more the information amount of the decoded media data in the arrangement direction, so as to improve the display effect in the arrangement direction.
The more the number of the virtual pixel units in a certain arrangement direction is, the lower the reduction degree of information is in decoding, the less the information amount of the decoded media data in the arrangement direction is, but the display effect tends to be consistent with the arrangement direction with lower number of the virtual pixel units because the display screen has stronger information presenting capability in the arrangement direction, and the display effect can be improved.
In addition, in order to further enhance the display effect, in the embodiment of the present application, the image quality of the media data may be enhanced. The image quality enhancement may refer to resolution enhancement, brightness adjustment to an optimal range, detail enhancement, layering removal, blur removal, and the like, and the specifically used image quality enhancement algorithm may be any existing algorithm, for example, resolution enhancement may be implemented by an interpolation algorithm, detail enhancement may be implemented by a deep learning algorithm, and the like, which is not limited to this application.
In some embodiments, the media data may be image quality enhanced by the control device prior to compression encoding the media data.
Preferably, the image quality of the media data may be enhanced based on configuration information when the media data is compression-encoded. The configuration information may refer to compression parameters such as compression rate. Specifically, since the main influence of the codec on the image is derived from the loss of information, the lower the compression rate is, the more the amount of information is lost, and the higher the degree of blurring of the image is, the higher the degree of detail enhancement or blurring removal can be performed when the image quality is enhanced.
In other embodiments, the receiving device may be controlled to perform the image quality enhancement processing on the decoded media data before controlling the display screen to display the decoded media data. Also, the receiving apparatus can perform image quality enhancement based on the configuration information at the time of compression encoding.
Through the image quality enhancement, the image quality of the media data can be effectively improved, and then the display effect of the display screen is improved.
When the receiving equipment transmits data, the part, which needs to be displayed, of each display module in the code stream can be intercepted, and the part is transmitted to the display module for displaying through the transmission interface, so that the whole display screen can display the whole media data. Due to the addition of the encoding and decoding algorithm, the original 5G transmission interface in the original display system can be replaced by a 2.5G transmission interface, so that the problems of high cost and heat dissipation requirement of the 5G transmission interface are solved, namely, the data volume of the code stream can be 1/2 of the original data volume under 2 times of compression, and further the 5G equivalent bandwidth transmission is realized through the 2.5G transmission interface.
In order to further improve the heat dissipation capacity, the receiving device may be connected to the control device through a transmission interface; a heat radiation structure is arranged between the control equipment and the receiving equipment, and the heat radiation structure can be used for reducing the heat of the transmission interface, so that the service life of the transmission interface is prolonged.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders in accordance with the application.
Fig. 6 is a schematic structural diagram of a data transmission device 600 of an LED display screen according to an embodiment of the present application, where the data transmission device 600 of an LED display screen is configured on an electronic device, and the electronic device may specifically refer to a control device such as a sending card or a scanning card.
Specifically, the data transmission device 600 of the LED display screen may include:
a media data acquisition unit 601, configured to acquire media data to be transmitted;
an arrangement information obtaining unit 602, configured to obtain arrangement information of light points in a display screen, where the arrangement information is used to indicate the number of virtual pixel units of the display screen in each arrangement direction, where the virtual pixel units are composed of a plurality of light points, and the plurality of light points are disposed in one or more pixels of the display screen;
a compression encoding unit 603, configured to perform compression encoding on the media data with corresponding encoding parameters in each arrangement direction according to the arrangement information;
and the data transmission unit 604 is configured to transmit the code stream obtained by compression encoding to the display screen, so that the display screen displays the media data.
In some embodiments of the present application, the compression encoding unit 603 may be specifically configured to: determining information redundancy in each arrangement direction according to the number of the virtual pixel units in each arrangement direction; and carrying out compression coding on the media data according to coding parameters corresponding to the information redundancy in each arrangement direction.
In some embodiments of the present application, the data transmission device 600 of the LED display screen may include an image quality enhancement unit, which enhances the image quality of the media data.
In some embodiments of the present application, the data transmission unit 604 may be specifically configured to: transmitting the code stream to the receiving equipment, and decoding the code stream by the receiving equipment according to the arrangement information to obtain decoded media data; and controlling the display screen to display the decoded media data through the receiving equipment.
In some embodiments of the present application, the data transmission unit 604 may be further configured to: and controlling the receiving equipment to carry out image quality enhancement processing on the decoded media data.
In some embodiments of the present application, each display module of the display screen is connected to a receiving device; the receiving equipment is connected with the control equipment through a transmission interface; and a heat dissipation structure is arranged between the control equipment and the receiving equipment and is used for reducing the heat of the transmission interface.
It should be noted that, for convenience and brevity of description, the specific working process of the data transmission device 600 of the LED display screen may refer to the corresponding process of the method described in fig. 1 to 5, and will not be described herein again.
Fig. 7 is a schematic diagram of an electronic device according to an embodiment of the present application. Specifically, the electronic device 7 may include: a processor 70, a memory 71 and a computer program 72 stored in said memory 71 and executable on said processor 70, for example a data transmission program of an LED display screen. The processor 70, when executing the computer program 72, implements the steps of the data transmission method embodiment of each LED display screen described above, such as steps S101 to S104 shown in fig. 1. Alternatively, the processor 70 may implement the functions of the modules/units in the above-described embodiments of the apparatus when executing the computer program 72, for example, the functions of the media data acquisition unit 601, the arrangement information acquisition unit 602, the compression encoding unit 603, and the data transmission unit 604 shown in fig. 6.
The computer program may be divided into one or more modules/units which are stored in the memory 71 and executed by the processor 70 to complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the electronic device.
For example, the computer program may be split into: the device comprises a media data acquisition unit, an arrangement information acquisition unit, a compression coding unit and a data transmission unit. The specific functions of each unit are as follows: a media data acquisition unit for acquiring media data to be transmitted; the display device comprises an arrangement information acquisition unit, a display screen display unit and a display screen display unit, wherein the arrangement information acquisition unit is used for acquiring arrangement information of lamp points in the display screen, the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; the compression coding unit is used for carrying out compression coding on the media data according to the arrangement information and the corresponding coding parameters in each arrangement direction; and the data transmission unit is used for transmitting the code stream obtained by compression coding to the display screen so as to enable the display screen to display the media data.
The electronic device may include, but is not limited to, a processor 70, a memory 71. It will be appreciated by those skilled in the art that fig. 7 is merely an example of an electronic device and is not meant to be limiting, and that more or fewer components than shown may be included, or that certain components may be combined, or that different components may be included, for example, in an electronic device that may also include an input-output device, a network access device, a bus, etc.
The processor 70 may be a central processing unit (Central Processing Unit, CPU), or may be another general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 71 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device. Further, the memory 71 may also include both an internal storage unit and an external storage device of the electronic device. The memory 71 is used for storing the computer program and other programs and data required by the electronic device. The memory 71 may also be used for temporarily storing data that has been output or is to be output.
It should be noted that, for convenience and brevity of description, the structure of the electronic device may refer to a specific description of the structure in the method embodiment, which is not repeated herein.
Referring to fig. 8, fig. 8 illustrates a display system 80 provided by the present application. The display system 80 may include a control device and a display screen coupled to the control device.
The control equipment is used for acquiring media data to be transmitted, acquiring arrangement information of lamp points in the display screen, carrying out compression coding on the media data in each arrangement direction according to the arrangement information by using corresponding coding parameters, and transmitting a code stream obtained by compression coding to the display screen. The arrangement information is used for indicating the number of the virtual pixel units of the display screen in each arrangement direction, the virtual pixel units are composed of a plurality of light points, and the plurality of light points are arranged in one or more pixels of the display screen.
The display screen may be used to display media data based on the code stream.
In some embodiments, the display system 80 may further include a receiving device; the receiving equipment is respectively connected with the control equipment and the display screen and is used for receiving the code stream transmitted by the control equipment, decoding the code stream according to the arrangement information to obtain decoded media data, and controlling the display screen to display the decoded media data through the receiving equipment.
In some embodiments, the display system 80 may further include a host computer; the upper computer can be used for acquiring video data and transmitting the video data to the control equipment so that the control equipment can take the video data as media data to be transmitted. Meanwhile, the upper computer can be also used for configuring the display screen to generate configuration information.
It should be understood that the specific functions and structures of the control device, the receiving device, and the display screen may also refer to the descriptions of fig. 1 to 7, and the disclosure is not repeated herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
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 solution. 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/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. The data transmission method of the LED display screen is characterized by comprising the following steps of:
acquiring media data to be transmitted;
the method comprises the steps of obtaining arrangement information of lamp points in a display screen, wherein the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen;
according to the arrangement information, carrying out compression coding on the media data in each arrangement direction by using corresponding coding parameters;
and transmitting the code stream obtained by compression coding to the display screen so that the display screen displays the media data.
2. The method for transmitting data of an LED display screen according to claim 1, wherein said compressing the media data with the corresponding encoding parameters in each of the arrangement directions according to the arrangement information comprises:
determining information redundancy in each arrangement direction according to the number of the virtual pixel units in each arrangement direction;
and carrying out compression coding on the media data according to coding parameters corresponding to the information redundancy in each arrangement direction.
3. The data transmission method of the LED display screen according to claim 1, wherein each display module of the display screen is connected with a receiving device;
the transmitting the code stream obtained by compression coding to the display screen so that the display screen displays the media data comprises the following steps:
transmitting the code stream to the receiving equipment so that the receiving equipment decodes the code stream according to the arrangement information to obtain decoded media data;
and controlling the display screen to display the decoded media data through the receiving equipment.
4. A data transmission method for an LED display screen according to claim 3, further comprising, prior to said controlling, by said receiving device, said display screen to display said decoded media data:
and controlling the receiving equipment to carry out image quality enhancement processing on the decoded media data.
5. The data transmission method of the LED display screen according to claim 1, wherein each display module of the display screen is connected with a receiving device; the receiving equipment is connected with the control equipment through a transmission interface; and a heat dissipation structure is arranged between the control equipment and the receiving equipment and is used for reducing the heat of the transmission interface.
6. A data transmission device for an LED display screen, comprising:
a media data acquisition unit for acquiring media data to be transmitted;
the display device comprises an arrangement information acquisition unit, a display screen display unit and a display screen display unit, wherein the arrangement information acquisition unit is used for acquiring arrangement information of lamp points in the display screen, the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen;
the compression coding unit is used for carrying out compression coding on the media data according to the arrangement information and the corresponding coding parameters in each arrangement direction;
and the data transmission unit is used for transmitting the code stream obtained by compression coding to the display screen so as to enable the display screen to display the media data.
7. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, realizes the steps of the data transmission method of the LED display screen according to any one of claims 1 to 5.
8. A display system, comprising a control device and a display screen connected to the control device;
the control equipment is used for acquiring media data to be transmitted; the method comprises the steps of obtaining arrangement information of lamp points in a display screen, wherein the arrangement information is used for indicating the number of virtual pixel units of the display screen in each arrangement direction, each virtual pixel unit consists of a plurality of lamp points, and the lamp points are arranged in one or more pixels of the display screen; according to the arrangement information, carrying out compression coding on the media data in each arrangement direction by using corresponding coding parameters; transmitting a code stream obtained by compression coding to the display screen;
the display screen is used for displaying the media data based on the code stream.
9. A computer-readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the data transmission method of an LED display screen according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310787443.9A CN116916109A (en) | 2023-06-29 | 2023-06-29 | Data transmission method, device, equipment, system and medium of LED display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310787443.9A CN116916109A (en) | 2023-06-29 | 2023-06-29 | Data transmission method, device, equipment, system and medium of LED display screen |
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| CN116916109A true CN116916109A (en) | 2023-10-20 |
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| CN202310787443.9A Pending CN116916109A (en) | 2023-06-29 | 2023-06-29 | Data transmission method, device, equipment, system and medium of LED display screen |
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| CN (1) | CN116916109A (en) |
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- 2023-06-29 CN CN202310787443.9A patent/CN116916109A/en active Pending
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