CN113489992A - Soft coding and decoding large screen splicing system and soft coding and decoding method thereof - Google Patents
Soft coding and decoding large screen splicing system and soft coding and decoding method thereof Download PDFInfo
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- CN113489992A CN113489992A CN202110764986.XA CN202110764986A CN113489992A CN 113489992 A CN113489992 A CN 113489992A CN 202110764986 A CN202110764986 A CN 202110764986A CN 113489992 A CN113489992 A CN 113489992A
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- 230000002159 abnormal effect Effects 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
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Abstract
The invention discloses a soft coding and decoding large screen splicing system and a soft coding and decoding method thereof, wherein the soft coding and decoding method comprises the following steps: video source, switch, network concatenation controller, sender and concatenation screen, the network concatenation controller includes: the video source system comprises a control management module, a network input module and a plurality of output modules, wherein the video source is provided with a splicing encoder. The invention realizes data exchange between the video source and the network splicing controller by adopting a network connection mode, reduces the requirement on hardware configuration of video source equipment, does not need to set a special video interface for the video source equipment, does not need to select a corresponding video line according to the interface, is convenient for expansion of the video source and improves the replaceability of the video source. Meanwhile, the video data are coded through the splicing encoder connected with the video source, so that the video is conveniently put on a splicing screen to be displayed, and the video splicing method is more suitable for the requirement of the times of interconnection of everything.
Description
Technical Field
The invention relates to the technical field of LED/LCD (light emitting diode/liquid crystal display) spliced screens, in particular to a soft coding and decoding large screen splicing system and a soft coding and decoding method thereof.
Background
The spliced screen is formed by splicing a plurality of display units into an oversized display picture after the display units are freely combined and installed. At present, the spliced screen is widely applied to a plurality of fields such as a monitoring center, a command center and outdoor exhibition. Referring to fig. 1, the current tiled screen system includes: the LED splicing device comprises a plurality of video sources, a splicing controller connected with the video sources, a plurality of transmitters connected with the splicing controller, and an LED splicing large screen connected with the transmitters. Video data are provided through a video source and sent to a splicing controller, the video data are spliced or separated, and finally, processed video signals are transmitted to a splicing screen through a transmitter, and spliced video pictures are displayed. However, the existing tiled screen system has the following disadvantages:
1. each video source needs to be connected with the splicing controller through a special video transmission line, which requires that the video source has two video output interfaces, one of which is connected with a display of the video source, and the other is connected with the splicing controller. If the video source does not have two video output interfaces, a deconcentrator needs to be additionally configured to expand one interface into two interfaces, but the expansion of the interfaces causes the increase of fault points of equipment, reduces the reliability, and increases the construction amount and the construction cost.
2. The variety of video source devices is limited. If the video source does not have HDMI, DVI, VGA, DP and other hardware interfaces, splicing cannot be realized. With the increase and popularization of mobile terminal devices, such a limitation condition becomes more and more obvious.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a soft coding and decoding large-screen splicing system and a soft coding and decoding method thereof.
The technical scheme of the invention is as follows: there is provided a large screen splicing system for soft encoding and decoding, comprising: a plurality of video sources, with the switch that the video source is connected, with the network concatenation controller that the switch is connected, with a plurality of senders that the network concatenation controller is connected and with send the concatenation screen that the ware is connected, the network concatenation controller includes: control management module, network input module and a plurality of output module, control management module is connected with network input module and output module, network input module passes through the ethernet and is connected with the switch, the switch passes through the ethernet and is connected with the video source, every output module is connected with the sender respectively, the video source is provided with the concatenation encoder.
Furthermore, the splicing encoder adopts a soft coding and decoding mode of a TCP/IP transmission protocol.
Furthermore, the switch is connected with the video source and the network splicing controller through network cables.
Further, the video source, the switch and the network splicing controller are connected and communicated by adopting a wireless module.
Further, the switch is connected with a splicing control client.
Furthermore, the spliced screen adopts an LED display screen or an LCD display screen.
The invention also provides a soft coding and decoding method of the large-screen splicing system, which comprises the following steps:
step 1: sequentially connecting a video source, a switch, a network splicing controller, a splicing control client, a transmitter and a splicing screen;
step 2: a splicing encoder is arranged in video source equipment;
and step 3: the network splicing controller sends a video request instruction to a video source through a switch;
and 4, step 4: the video source receives a video request instruction, sends video data to be played to a splicing encoder to encode the video, and simultaneously adjusts the video resolution according to a set value and completes encoding;
and 5: after the network splicing controller receives the video data, decoding the received video data, and dividing the video data into a plurality of parts according to the number of the spliced screens;
step 6: the network splicing controller respectively packages the separated video data and sends the packaged video data to the split screens of the corresponding splicing screens through a sender;
and 7: each split screen of the spliced screen respectively displays corresponding video data, so that a complete video picture is displayed on the spliced screen;
and 8: when the playing is finished, the network splicing controller sends a display stopping instruction to the video source through the switch, and after the video source receives the instruction, the transmission of the video stream is stopped, the playing process is stopped, and the next instruction of the network splicing controller is waited.
By adopting the scheme, the data exchange between the video source and the network splicing controller is realized by adopting a network connection mode, the requirement on the hardware configuration of the video source equipment is reduced, a special video interface is not required to be arranged on the video source equipment, and a corresponding video line is not required to be selected according to the interface, so that the expansion of the video source is facilitated, and the replaceability of the video source is improved. Meanwhile, the video data are coded through the splicing encoder connected with the video source, so that the video is conveniently put on a splicing screen to be displayed, and the video splicing method is more suitable for the requirement of the times of interconnection of everything.
Drawings
Fig. 1 is a schematic diagram of a current tiled screen system architecture.
Fig. 2 is a circuit diagram of the network splicing controller.
Fig. 3 is a connection diagram of a hardware architecture of the splicing system.
Fig. 4 is a schematic diagram of a logic architecture of the splicing system.
FIG. 5 is a schematic diagram of the interaction between the network stitching controller and the video source.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 2 to 4, the present invention provides a soft coding and decoding large screen splicing system, including: the video splicing system comprises a plurality of video sources, a switch connected with the video sources, a network splicing controller connected with the switch, a plurality of transmitters connected with the network splicing controller, and a splicing screen connected with the transmitters. The network splicing controller comprises: the device comprises a control management module, a network input module and a plurality of output modules. And the control management module is connected with the network input module and the network output module. The network input module is connected with the switch through the Ethernet. The switch is connected with the video source through the Ethernet. Each output module is respectively connected with a transmitter. The video source is provided with a splicing encoder. The splicing encoder is responsible for carrying out video coding on video data provided by video source equipment, and simultaneously, the image resolution of the video data is adjusted according to the set resolution information, so that the optimal video picture can be displayed on the splicing screen. The network video splicing controller can separate the received video data to adapt to the display requirement of the spliced screen. Meanwhile, the network video splicing controller can manage the video source and send corresponding request signals and control signals to the video source, so that the video source can be managed and controlled in a centralized manner.
The invention realizes data exchange between the video source and the network splicing controller by adopting a network connection mode, reduces the requirement on hardware configuration of video source equipment, does not need to set a special video interface for the video source equipment, does not need to select a corresponding video line according to the interface, is convenient for expansion of the video source and improves the replaceability of the video source. Meanwhile, the video data are coded through the splicing encoder connected with the video source, so that the video is conveniently put on a splicing screen to be displayed, and the video splicing method is more suitable for the requirement of the times of interconnection of everything.
The splicing encoder adopts a soft coding and decoding mode of a TCP/IP transmission protocol. The TCP/IP transport protocol, i.e., the transmission control/network protocol, also called the network communication protocol, is the most basic communication protocol in use of the network. The TCP/IP transport protocol specifies the standards and methods for communicating between various parts of the internet. In addition, the TCP/IP transmission protocol is two important protocols for ensuring timely and complete transmission of network data information.
And the switch is connected with the video source and the network splicing controller through network cables. The connection is carried out through the network cable, so that the connection state and the stability of data transmission are ensured, and meanwhile, the cost investment can be reduced.
The video source, the switch and the network splicing controller are connected and communicated by adopting a wireless module. Carry out wireless connection communication through wireless module, the extension of video source equipment of can being convenient for has the convenient characteristics of removal simultaneously to reduce the on-the-spot wiring, improve the pleasing to the eye degree of environment.
The switch is connected with a splicing control client. By accessing the splicing control client, various working parameters of the network splicing controller can be modified and controlled, and meanwhile, the online state of the video source can be monitored, and the video source can be managed in groups. When the video source connection state is normal, the green mark is displayed, and when the video source connection state is abnormal, the red mark is displayed, so that an operator can know the connection condition of the video source conveniently, and the abnormal condition is checked.
The spliced screen adopts an LED display screen or an LCD display screen.
The LED display screen is an electronic display screen formed by LED lattices, the display content forms of the display screen such as characters, animations, pictures and videos are changed in time by the red and green lamp beads which are turned on and off, and the display control of the components is carried out through a modular structure. The LED display screen has the characteristics of high brightness intensity, low work power consumption, low voltage requirement, small and exquisite equipment, long service life, impact resistance, stability and strong external interference resistance, can realize conversion among different forms of various information presentation modes, can be used indoors and outdoors, and has incomparable advantages compared with other display screens.
The LCD screen, namely the liquid crystal display screen, belongs to a flat panel display, has the characteristics of low power consumption, small volume, low radiation and the like, and can enable a user to enjoy the best visual environment.
Referring to fig. 5, the present invention further provides a soft coding and decoding method for a large screen splicing system, including the following steps:
step 1: the video source, the switch, the network splicing controller, the splicing control client, the transmitter and the splicing screen are connected in sequence.
Step 2: a splicing encoder is incorporated in the video source device.
And step 3: and the network splicing controller sends a video request instruction to the video source through the switch.
And 4, step 4: and the video source receives the instruction of requesting the video, sends the video data to be played to the splicing encoder to encode the video, and simultaneously adjusts the video resolution according to the set value and completes the encoding.
And 5: and after the network splicing controller receives the video data, decoding the received video data, and dividing the video data into a plurality of parts according to the number of the spliced screens.
Step 6: and the network splicing controller respectively packages the separated video data and sends the packaged video data to the split screens of the corresponding splicing screens through the sender.
And 7: and each split screen of the spliced screen respectively displays corresponding video data, so that a complete video picture is displayed on the spliced screen.
And 8: when the playing is finished, the network splicing controller sends a display stopping instruction to the video source through the switch, and after the video source receives the instruction, the transmission of the video stream is stopped, the playing process is stopped, and the next instruction of the network splicing controller is waited.
The invention provides a soft coding and decoding mode based on a TCP/IP protocol, realizes that equipment transmits video picture data through Ethernet, has flexible networking mode, does not need a special video transmission line, can support equipment without a video interface, and meets the development trend of interconnection of everything.
In summary, the invention realizes data exchange between the video source and the network splicing controller by adopting a network connection mode, reduces the requirement on hardware configuration of the video source equipment, does not need to set a special video interface for the video source equipment, does not need to select a corresponding video line according to the interface, facilitates the expansion of the video source, and improves the replaceability of the video source. Meanwhile, the video data are coded through the splicing encoder connected with the video source, so that the video is conveniently put on a splicing screen to be displayed, and the video splicing method is more suitable for the requirement of the times of interconnection of everything.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A soft coded and decoded large screen splicing system, comprising: a plurality of video sources, with the switch that the video source is connected, with the network concatenation controller that the switch is connected, with a plurality of senders that the network concatenation controller is connected and with send the concatenation screen that the ware is connected, the network concatenation controller includes: control management module, network input module and a plurality of output module, control management module is connected with network input module and output module, network input module passes through the ethernet and is connected with the switch, the switch passes through the ethernet and is connected with the video source, every output module is connected with the sender respectively, the video source is provided with the concatenation encoder.
2. The soft coded and decoded large screen splicing system according to claim 1, wherein the splicing encoder adopts a soft coding and decoding mode of a TCP/IP transmission protocol.
3. The soft coded and decoded large screen splicing system according to claim 1, wherein the switch is connected with the video source and the network splicing controller through network cables.
4. The soft coded and decoded large screen splicing system according to claim 1, wherein the video source, the switch and the network splicing controller are in connected communication using wireless modules.
5. The soft coded and decoded large screen splicing system according to claim 1, wherein a splice control client is connected to the switch.
6. The soft coded and decoded large screen splicing system according to claim 1, wherein the spliced screen is an LED display screen or an LCD display screen.
7. A soft coding and decoding method for a large-screen splicing system is characterized by comprising the following steps:
step 1: sequentially connecting a video source, a switch, a network splicing controller, a splicing control client, a transmitter and a splicing screen;
step 2: a splicing encoder is arranged in video source equipment;
and step 3: the network splicing controller sends a video request instruction to a video source through a switch;
and 4, step 4: the video source receives a video request instruction, sends video data to be played to a splicing encoder to encode the video, and simultaneously adjusts the video resolution according to a set value and completes encoding;
and 5: after the network splicing controller receives the video data, decoding the received video data, and dividing the video data into a plurality of parts according to the number of the spliced screens;
step 6: the network splicing controller respectively packages the separated video data and sends the packaged video data to the split screens of the corresponding splicing screens through a sender;
and 7: each split screen of the spliced screen respectively displays corresponding video data, so that a complete video picture is displayed on the spliced screen;
and 8: when the playing is finished, the network splicing controller sends a display stopping instruction to the video source through the switch, and after the video source receives the instruction, the transmission of the video stream is stopped, the playing process is stopped, and the next instruction of the network splicing controller is waited.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646032A (en) * | 2012-04-16 | 2012-08-22 | 杭州海康威视数字技术股份有限公司 | Distributed screen splicing control system and control method |
| CN103731645A (en) * | 2014-01-21 | 2014-04-16 | 中国华录集团有限公司 | Law enforcement and case handling system based on wireless video transmission technology |
| CN104052959A (en) * | 2013-03-12 | 2014-09-17 | 无锡思朗电子科技有限公司 | A distributed splicing control display system based on network video nodes |
| CN207573504U (en) * | 2017-12-18 | 2018-07-03 | 广东电网有限责任公司电力调度控制中心 | A kind of IPization multimedia signal transmission system |
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- 2021-07-06 CN CN202110764986.XA patent/CN113489992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646032A (en) * | 2012-04-16 | 2012-08-22 | 杭州海康威视数字技术股份有限公司 | Distributed screen splicing control system and control method |
| CN104052959A (en) * | 2013-03-12 | 2014-09-17 | 无锡思朗电子科技有限公司 | A distributed splicing control display system based on network video nodes |
| CN103731645A (en) * | 2014-01-21 | 2014-04-16 | 中国华录集团有限公司 | Law enforcement and case handling system based on wireless video transmission technology |
| CN207573504U (en) * | 2017-12-18 | 2018-07-03 | 广东电网有限责任公司电力调度控制中心 | A kind of IPization multimedia signal transmission system |
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