CN110012254B - Television and real-time visual information source switching processing method - Google Patents
Television and real-time visual information source switching processing method Download PDFInfo
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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Abstract
The invention discloses a television and a real-time visual information source switching processing method, wherein the television comprises the following steps: the system comprises a plurality of information source interfaces, an information source distributor, a television mainboard, a plurality of video processing boards, a display panel and an FPGA chip which is respectively connected with the television mainboard and each video processing board, wherein a full-screen main picture which is processed by the television mainboard and a plurality of sub-window pre-display pictures converted by the plurality of video processing boards are synthesized, the synthesis processing is to display a final picture of the plurality of sub-window pre-display pictures on the full-screen main picture, and display data are output to a panel display picture; the FPGA chip is also used for receiving a command sent by the television mainboard and a request command sent by the FPGA to the television mainboard. Before the information source is switched, the content of the information source can be pre-monitored, and the content is played in real time, so that a plurality of information source programs can be pre-monitored; because the pre-monitoring content is played in real time, the user can accurately grasp the switching time point, and the method is efficient and quick.
Description
Technical Field
The invention relates to the technical field of televisions, in particular to a television and a real-time visual information source switching processing method.
Background
The television has various video signal source (source for short) interfaces, such as multiple HDMI interfaces, AV, VGA, multiple USB interfaces, and LAN network interface. The existing television can not see programs before the information source is switched, and the program content is unpredictable, so that the operation and the use of a user are inconvenient.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present invention provides a television and a real-time video source switching processing method, wherein before the source switching, the content can be pre-monitored, and the content is played in real time, so that three source programs can be pre-monitored, and the method can be extended to more than three pre-monitored source programs. Because the pre-monitoring content is played in real time, the user can accurately grasp the switching time point, the method is efficient and quick, and the operation and the use of the user are convenient.
In order to achieve the purpose, the invention adopts the following technical scheme:
a television, comprising:
a plurality of signal source interfaces for connecting various signal sources;
the signal source distributor is connected with the multiple signal source interfaces and used for converting one input signal source of the switching into two completely identical signal sources through a circuit and outputting the two completely identical signal sources, wherein one signal source is transmitted to the television mainboard, and the other signal source is transmitted to the video processing board; the switching circuit is also used for respectively outputting the multi-path input information sources which are not switched to the plurality of video processing boards;
the television mainboard is connected with the information source distributor and used for processing one path of information source transmitted by the information source distributor into a full-screen main picture, then transmitting the full-screen main picture to the FPGA chip, receiving the operation instruction for processing and then controlling the FPGA to execute corresponding operation;
the video processing boards are respectively connected with the information source distributor and used for converting input pictures into a unified format which can be received by the FPGA chip and reducing the input pictures into sub-window pre-display pictures with fixed sizes and capable of pre-monitoring and displaying real-time playing contents so as to display the sub-windows in the follow-up process;
the FPGA chip is respectively connected with the television mainboard and each video processing board and is used for synthesizing a full-screen main picture processed by the television mainboard and a plurality of sub-window pre-display pictures converted by the plurality of video processing boards, the synthesis processing is to display a final picture of the plurality of sub-window pre-display pictures on the full-screen main picture, and display data is output to a panel display picture; the FPGA chip is also used for receiving a command sent by the television mainboard and a request command sent by the FPGA to the television mainboard;
and the display panel is connected with the FPGA chip and is used for displaying a final picture of the pre-displayed pictures of the plurality of sub-windows on the main picture which is full of the full screen and processed by the FPGA chip.
The television, wherein, still include: and the DDR memory is connected with the FPGA chip and is used for caching data of a final picture which is processed by the FPGA chip and occupies the full-screen main picture and displays a plurality of sub-window pre-display pictures.
The television comprises a signal source distributor, a signal source processing board and a signal source processing board, wherein the signal source distributor is connected to the three video processing boards respectively by adopting three signal source distribution circuits and is used for converting the selected three input signal sources; one group is transmitted to a television main board, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source.
The television comprises three video processing boards, an information source distributor uses three information source distribution circuits to convert selected three input information sources, each information source converts and outputs two paths of completely same information sources, the information sources are divided into two groups, and each group comprises three information sources; one group is transmitted to a television main board, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source.
The television, wherein, the FPGA chip is also used for receiving 5 video signals: the television comprises 1 main channel and 1 auxiliary channel output by a television main board, and video signals output by 3 video processing boards respectively, wherein the main channel signals are main pictures full of a full screen, the rest 4 video signals are small pictures, and 3 of the main channel signals are taken as sub-window display pictures.
The television, wherein the unified format is LVDS format or VByOne format.
A real-time visual information source switching processing method for any television comprises the following steps:
inputting multi-channel information source signals of a plurality of information source interfaces to an information source distributor connected with various information source interfaces;
the information source distributor outputs two paths of completely same information sources through circuit conversion to one path of input information source which is switched, one path of input information source is transmitted to the television mainboard, and the other path of input information source is transmitted to the video processing board; the information source distributor also outputs the multi-channel input information sources which are not switched to the plurality of video processing boards respectively;
the television mainboard connected with the information source distributor processes one of the information sources transmitted by the information source distributor into a full-screen main picture, transmits the full-screen main picture to the FPGA chip, receives the operation instruction processing and controls the FPGA to execute corresponding operation;
the system comprises a plurality of video processing boards, a sub-window pre-display picture, a plurality of video processing boards, a plurality of FPGA chips and a plurality of signal source distributors, wherein the video processing boards are respectively connected with the signal source distributors;
the FPGA chip is respectively connected with the television main board and each video processing board, and is used for synthesizing a full-screen main picture processed by the television main board and a plurality of sub-window pre-display pictures converted by the plurality of video processing boards, wherein the synthesis process is to display a final picture of the plurality of sub-window pre-display pictures on the full-screen main picture and output display data to a panel display picture; the method comprises the steps that a command sent by a television mainboard and a request command sent by the FPGA to the television mainboard are received through an FPGA chip;
and the display panel connected with the FPGA chip displays the final picture of the pre-displayed pictures of the plurality of sub-windows on the main picture which is full of the full screen and processed by the FPGA chip for display.
The real-time visual information source switching processing method further comprises the following steps:
when the FPGA chip is powered on, carrying out initialization work, wherein the initialization process mainly comprises the steps of setting an internal register of the FPGA and setting working parameters of a display panel;
then entering a main program, wherein the main program only displays a main picture and only displays a main channel picture sent by a television main board;
during the main program period, the FPGA chip judges whether a primary command is received to open multiple windows;
if a primary command is received to open the multiple windows, three sub-windows are opened;
then, the FPGA judges whether a secondary command is received, and the secondary commands are only two: selecting and closing multiple windows, and activating a secondary command only after receiving a primary command;
if a multi-window command selected by a secondary command is received, an operation instruction of a user is received through a remote controller to select a certain sub-window, after a confirmation key is pressed, the FPGA sends a request to a television main board, the main picture is switched to a corresponding information source, then all the sub-windows are closed, the main picture is returned, and the main picture channel is switched to the corresponding information source.
The real-time visual information source switching processing method further comprises the following steps:
if a secondary command of closing the multiple windows is received, all the sub-windows are directly closed, the main program is returned, and the main picture channel is unchanged.
The real-time visual information source switching processing method comprises the following steps:
the unified format is an LVDS format or a VByOne format.
Compared with the prior art, the television and the real-time visual information source switching processing method provided by the invention have the advantages that the content can be pre-monitored, the content is played in real time, three information source programs can be pre-monitored, and more than three pre-monitored information source programs can be expanded according to the method. Because the pre-monitoring content is played in real time, a user can accurately master the switching time point, the method is efficient and quick, the experience is excellent, and the convenience of television operation is improved.
Drawings
Fig. 1 is a functional block diagram of a television according to a preferred embodiment of the invention.
Fig. 2 is a schematic diagram of an execution flow of a FPGA program of a television according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a television main screen according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a configuration of turning on three visual sources by a television according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of selecting and switching a visual source for a television according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides a television, as shown in fig. 1, including: the system comprises a plurality of source interfaces (various source interfaces 11), a source distributor 203, a television main board 10, a plurality of video processing boards (204, 205 and 206 shown in figure 1), a display panel 12 and an FPGA chip 201 which is respectively connected with the television main board 10 and the video processing boards.
In the embodiment of the invention, a plurality of signal source interfaces (various signal source interfaces 11) are used for connecting various signal sources; for example, a plurality of HDMI interfaces, AV, VGA, a plurality of USB interfaces, and LAN network interfaces.
The information source distributor 203 is connected with various information source interfaces (various information source interfaces 11) and is used for converting one input information source of the switched information sources into two completely identical information sources through a circuit and outputting the two completely identical information sources, wherein one input information source is transmitted to the television main board 10, and the other input information source is transmitted to the video processing board; and also for outputting the unswitched multiple input sources to a plurality of video processing boards (204, 205, and 206, as shown in fig. 1), respectively.
The television mainboard 10 is connected with the information source distributor 203, and is used for processing one of the information sources transmitted by the information source distributor 203 into a full-screen main picture, then transmitting the full-screen main picture to the FPGA chip 201, receiving the operation instruction for processing, and then controlling the FPGA to execute corresponding operation.
A plurality of video processing boards (204, 205 and 206 shown in fig. 1) are respectively connected to the source distributor 203 for converting the input pictures into uniform formats receivable by the FPGA chip 201 and scaling down to fixed-size sub-window pre-display pictures capable of pre-displaying real-time playing contents for displaying in subsequent sub-windows. Wherein, the unified format is LVDS format or VByOne format.
In the embodiment of the invention, the main functions of the video processing board are image reduction and signal format conversion. Because the sizes of the pictures of the input information sources are different, the pictures are uniformly reduced to a fixed size through the video processing board so as to be displayed in the subsequent sub-windows; because the formats of the input information sources are different, the input information sources are converted into a uniform format through the video processing board, and the uniform format is a format which can be received by the FPGA, such as an LVDS format and a VByOne format.
The FPGA chip 201 is connected to the tv main board 10 and each video processing board, and is configured to combine the full-screen main picture processed by the tv main board 10 and the plurality of sub-window pre-display pictures converted by the plurality of video processing boards, where the combining process is to display a final picture of the plurality of sub-window pre-display pictures on one full-screen main picture, and output display data to a panel display picture; the FPGA chip 201 is also configured to receive a command sent by the television motherboard 10 and a request command sent by the FPGA to the television motherboard 10.
In the embodiment of the present invention, as shown in fig. 1, the FPGA receives 5 video signals: the television comprises 1 main channel and 1 auxiliary channel output by a television main board and video signals output by 3 video processing boards respectively, wherein the main channel signals are main pictures full of a full screen, the rest 4 video signals are small pictures, and 3 of the main channel signals are taken as sub-window display pictures. The FPGA also receives a command sent by the television mainboard and a request command sent by the FPGA to the television mainboard, the FPGA is further connected with a DDR memory bank (namely a DDR chipset) so as to perform data caching, video signals of a plurality of channels form a final picture after being processed by the FPGA, and display data are output to a panel to display the picture.
The auxiliary channel signal is a signal which is received by the television mainboard and cannot pass through the distributor, such as a network video, a USB file playing video and the like.
The display panel 12 is connected to the FPGA chip 201, and is configured to display a final picture of the pre-displayed pictures in multiple sub-windows on the main picture full of the full screen processed by the FPGA chip 201.
As shown in fig. 1, the television according to the embodiment of the present invention further includes: and the DDR memory 202 connected with the FPGA chip 201 is used for performing data caching on a final picture which is processed by the FPGA chip 201 and occupies a full-screen main picture and displays a plurality of sub-window pre-display pictures.
Preferably, the source distributor 203 adopts three source distribution circuits respectively connected to three video processing boards (such as 204, 205 and 206 shown in fig. 1) for converting the selected three input source, each source converting outputs two identical sources, which are divided into two groups, each group of three sources; one group is transmitted to the television main board 10, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source.
That is, in the embodiment of the present invention, the number of the video processing boards is three (such as 204, 205, and 206 shown in fig. 1), the source distributor 203 uses three source distribution circuits to convert the selected three input source, each source converts and outputs two paths of identical source, which are divided into two groups, each group of three source; one group is transmitted to the television main board 10, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source. Therefore, before the information source is switched, the content can be pre-monitored, the content is played in real time, three information source programs can be pre-monitored, and the method can be expanded to more than three pre-monitored information source programs. Because the pre-monitoring content is played in real time, the user can accurately grasp the switching time point, the method is efficient and quick, and the operation and the use of the user are convenient.
The FPGA chip 201 is also configured to receive 5 video signals: the main channel signal is a main picture full of a full screen, and the other 4 video signals are small pictures, and 3 of the main channel signals and 1 auxiliary channel output by the television main board 10 and the video signals output by the 3 video processing boards are taken as sub-window display pictures.
Fig. 2 is a schematic diagram of an execution flow of a FPGA program of a television according to an embodiment of the present invention. As shown in fig. 2, after the FPGA chip is powered on, initialization is performed, and the initialization process mainly includes setting an internal register of the FPGA chip and setting working parameters of the display panel. Then, the program enters the main program, which only displays the main picture and only displays the main channel picture sent by the main board of the television, as shown in fig. 3. During a main program, the FPGA judges whether a primary command (opening multiple windows) is received or not, if so, three sub-windows are opened, the positions and the sizes of the sub-windows are determined during initialization, and videos displayed by the three sub-windows can be displayed by setting and selecting three of 4 video signals of an auxiliary channel and 3 video processing boards.
Then, the FPGA judges whether a secondary command is received, and the secondary commands are only two: multiple windows are selected, and a secondary command is activated only after a primary command is received. If a command of selecting multiple windows is received, a user selects a certain sub-window through a remote controller, after a confirmation key is pressed, the FPGA sends a request to a television mainboard, the main picture is switched to a corresponding information source, then all the sub-windows are closed, the main picture is returned, and the main picture channel is switched to the corresponding information source. And if a command of closing the multiple windows is received, directly closing all the sub-windows, returning to the main program, and keeping the main picture channel unchanged.
As shown in fig. 3, fig. 4 and fig. 5, the display effect of the present invention is schematically shown: FIG. 3 is a home screen, full of full screen; FIG. 4 is a diagram showing the effect of opening multiple windows (three sub-windows), the positions and sizes of which can be set by menu commands; fig. 5 shows that after a certain sub-window is selected and the enter key is pressed, the main window immediately displays the content of the corresponding signal.
Therefore, the television of the embodiment of the invention can pre-monitor the content before the information source is switched, and the content is played in real time, so that three information source programs can be pre-monitored, and the method can be expanded to more than three pre-monitored information source programs. Because the pre-monitoring content is played in real time, the user can accurately grasp the switching time point, the method is efficient and quick, and the operation and the use of the user are convenient.
Based on the embodiment of the television, the invention also provides a real-time visual information source switching processing method based on the television, which comprises the following steps:
a plurality of signal source signals of a plurality of signal source interfaces are input to a signal source distributor 203 connected with various signal source interfaces;
the information source distributor 203 converts one of the switched input information sources into two identical information sources through a circuit to output, wherein one of the two identical information sources is transmitted to the television main board 10, and the other one of the two identical information sources is transmitted to the video processing board; the source distributor 203 also outputs the multi-channel input sources which are not switched to a plurality of video processing boards respectively;
the television mainboard 10 connected with the information source distributor 203 processes one of the information sources transmitted by the information source distributor 203 into a full-screen main picture, transmits the full-screen main picture to the FPGA chip 201, receives the operation instruction for processing, and controls the FPGA to execute corresponding operation;
a plurality of video processing boards respectively connected with the information source distributor 203, convert the input pictures into a uniform format receivable by the FPGA chip 201, and reduce the input pictures into a sub-window pre-display picture with fixed size and capable of pre-monitoring and displaying real-time playing contents for displaying in a subsequent sub-window;
the FPGA chip 201 is respectively connected with the television main board 10 and each video processing board, and synthesizes the full-screen main picture processed by the television main board 10 and a plurality of sub-window pre-display pictures converted by a plurality of video processing boards, wherein the synthesis process is to display the final picture of the plurality of sub-window pre-display pictures on one full-screen main picture and output display data to a panel display picture; the command sent by the television main board 10 and the request command sent by the FPGA to the television main board 10 are also received by the FPGA chip 201;
the display panel 12 connected to the FPGA chip 201 displays the final picture of the pre-displayed pictures of the plurality of sub-windows on the main picture full of the full screen processed by the FPGA chip 201, as described above.
Further, the real-time visual signal source switching processing method further includes the steps of:
when the FPGA chip 201 is powered on, performing initialization, wherein the initialization process mainly includes setting an internal register of the FPGA and setting working parameters of the display panel 12;
then, entering a main program, wherein the main program only displays a main picture and only displays a main channel picture sent by the television main board 10;
during the main program period, the FPGA chip 201 determines whether a primary command is received to open multiple windows;
if a primary command is received to open the multiple windows, three sub-windows are opened;
then, the FPGA judges whether a secondary command is received, and the secondary commands are only two: selecting and closing multiple windows, and activating a secondary command only after receiving a primary command;
if a multi-window command selected by a secondary command is received, an operation instruction of a user is received through a remote controller to select a certain sub-window, after a confirmation key is pressed, the FPGA sends a request to the television main board 10, the main picture is switched to a corresponding information source, then all the sub-windows are closed, the main picture is returned, and the main picture channel is switched to the corresponding information source.
The real-time visual information source switching processing method further comprises the following steps:
if a secondary command of closing the multiple windows is received, all the sub-windows are directly closed, the main program is returned, and the main picture channel is unchanged.
Wherein: the unified format is an LVDS format or a VByOne format; as described above.
In summary, the present invention provides a television and a real-time visual information source switching processing method, which can implement pre-monitoring of the content, and the content is played in real time, so that three information source programs can be pre-monitored, and the method can be extended to more than three pre-monitored information source programs. Because the pre-monitoring content is played in real time, a user can accurately master the switching time point, the method is efficient and quick, the experience is excellent, and the convenience of television operation is improved.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A television, comprising:
a plurality of signal source interfaces for connecting various signal sources;
the signal source distributor is connected with the multiple signal source interfaces and used for converting one input signal source of the switching into two completely identical signal sources through a circuit and outputting the two completely identical signal sources, wherein one signal source is transmitted to the television mainboard, and the other signal source is transmitted to the video processing board; the switching circuit is also used for respectively outputting the multi-path input information sources which are not switched to the plurality of video processing boards;
the television mainboard is connected with the information source distributor and used for processing one path of information source transmitted by the information source distributor into a full-screen main picture, then transmitting the full-screen main picture to the FPGA chip, receiving the operation instruction for processing and then controlling the FPGA to execute corresponding operation;
the video processing boards are respectively connected with the information source distributor and used for converting input pictures into a unified format which can be received by the FPGA chip and reducing the input pictures into sub-window pre-display pictures with fixed sizes and capable of pre-monitoring and displaying real-time playing contents so as to display the sub-windows in the follow-up process;
the FPGA chip is respectively connected with the television mainboard and each video processing board and is used for synthesizing a full-screen main picture processed by the television mainboard and a plurality of sub-window pre-display pictures converted by the plurality of video processing boards, the synthesis processing is to display a final picture of the plurality of sub-window pre-display pictures on the full-screen main picture, and display data is output to a panel display picture; the FPGA chip is also used for receiving a command sent by the television mainboard and a request command sent by the FPGA to the television mainboard;
the display panel is connected with the FPGA chip and is used for displaying a final picture of the pre-displayed pictures of the plurality of sub-windows on the main picture which is full of the full screen and processed by the FPGA chip;
and the DDR memory is connected with the FPGA chip and is used for caching data of a final picture which is processed by the FPGA chip and occupies the full-screen main picture and displays a plurality of sub-window pre-display pictures.
2. The television of claim 1, wherein the source distributor is connected to three video processing boards by three source distribution circuits, respectively, for converting selected three input sources, each source converting outputs two identical sources, divided into two groups of three sources; one group is transmitted to a television main board, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source.
3. The television of claim 2, wherein the video processing boards are three, the source distributor uses three source distribution circuits to convert the selected three input sources, each source conversion outputs two identical sources, which are divided into two groups of three sources; one group is transmitted to a television main board, the other group is transmitted to three video processing boards, and each video processing board receives one channel of information source.
4. The television of claim 3, wherein the FPGA chip is further configured to receive 5 video signals: the television comprises 1 main channel and 1 auxiliary channel output by a television main board, and video signals output by 3 video processing boards respectively, wherein the main channel signals are main pictures full of a full screen, the rest 4 video signals are small pictures, and 3 of the main channel signals are taken as sub-window display pictures.
5. The television of claim 1, wherein the unified format is an LVDS format or a VByOne format.
6. A method for processing real-time visual source switching of a television according to any of claims 1 to 5, comprising the steps of:
inputting multi-channel information source signals of a plurality of information source interfaces to an information source distributor connected with various information source interfaces;
the information source distributor outputs two paths of completely same information sources through circuit conversion to one path of input information source which is switched, one path of input information source is transmitted to the television mainboard, and the other path of input information source is transmitted to the video processing board; the information source distributor also outputs the multi-channel input information sources which are not switched to the plurality of video processing boards respectively;
the television mainboard connected with the information source distributor processes one of the information sources transmitted by the information source distributor into a full-screen main picture, transmits the full-screen main picture to the FPGA chip, receives the operation instruction processing and controls the FPGA to execute corresponding operation;
the system comprises a plurality of video processing boards, a sub-window pre-display picture, a plurality of video processing boards, a plurality of FPGA chips and a plurality of signal source distributors, wherein the video processing boards are respectively connected with the signal source distributors;
the FPGA chip is respectively connected with the television main board and each video processing board, and is used for synthesizing a full-screen main picture processed by the television main board and a plurality of sub-window pre-display pictures converted by the plurality of video processing boards, wherein the synthesis process is to display a final picture of the plurality of sub-window pre-display pictures on the full-screen main picture and output display data to a panel display picture; the method comprises the steps that a command sent by a television mainboard and a request command sent by the FPGA to the television mainboard are received through an FPGA chip;
and the display panel connected with the FPGA chip displays the final picture of the pre-displayed pictures of the plurality of sub-windows on the main picture which is full of the full screen and processed by the FPGA chip for display.
7. The real-time visual source switching processing method as claimed in claim 6, further comprising the steps of:
when the FPGA chip is powered on, carrying out initialization work, wherein the initialization process mainly comprises the steps of setting an internal register of the FPGA and setting working parameters of a display panel;
then entering a main program, wherein the main program only displays a main picture and only displays a main channel picture sent by a television main board;
during the main program period, the FPGA chip judges whether a primary command is received to open multiple windows;
if a primary command is received to open the multiple windows, three sub-windows are opened;
then, the FPGA judges whether a secondary command is received, and the secondary commands are only two: selecting and closing multiple windows, and activating a secondary command only after receiving a primary command;
if a multi-window command selected by a secondary command is received, an operation instruction of a user is received through a remote controller to select a certain sub-window, after a confirmation key is pressed, the FPGA sends a request to a television main board, the main picture is switched to a corresponding information source, then all the sub-windows are closed, the main picture is returned, and the main picture channel is switched to the corresponding information source.
8. The real-time visual source switching processing method as claimed in claim 7, further comprising the steps of:
if a secondary command of closing the multiple windows is received, all the sub-windows are directly closed, the main program is returned, and the main picture channel is unchanged.
9. The real-time visual source switching processing method of claim 7, wherein:
the unified format is an LVDS format or a VByOne format.
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