CN213028384U - Distributed cross-domain large-screen synchronization equipment - Google Patents
Distributed cross-domain large-screen synchronization equipment Download PDFInfo
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- CN213028384U CN213028384U CN202022350893.6U CN202022350893U CN213028384U CN 213028384 U CN213028384 U CN 213028384U CN 202022350893 U CN202022350893 U CN 202022350893U CN 213028384 U CN213028384 U CN 213028384U
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Abstract
The utility model discloses a large-size screen synchronization equipment of distributing type cross-domain. The system comprises a wide area network server, a plurality of local area network servers and a plurality of media service gateways; each local area network server is connected with a media service gateway through a wide area network server; wherein: each local area network server comprises a video signal collector, an encoder, a decoder, a video signal output device and a display screen; the video signal collector is connected with the encoder, the decoder is connected with the input end of the video signal output device, and the output end of the video signal output device is connected with the display screen; the encoder in each local area network server is connected with a media service gateway through a wide area server, and the media service gateway is connected with the decoder in the local area network server. The utility model discloses an equipment can carry out real-time sharing with the video input signal that different areas gathered, through with these shared signal output to the display screen on, just can reach the large-size screen synchronization of crossing the region.
Description
Technical Field
The utility model relates to a distributed image display technology field, in particular to large screen synchronizing device of domain is striden to distributing type.
Background
The spliced large screen is widely applied to various social fields, and with the wide construction of a command hall and the popularization of a distributed system, the collaborative interaction demand based on audio and video communication is increasing day by day. The existing large-screen synchronization system is mainly large-screen interaction under a local area network and cannot achieve cooperative interaction between different regions.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a distributed cross-domain large-screen synchronous device; the equipment can share video input signals collected from different regions in real time, and large-screen synchronization across regions can be achieved by outputting the shared signals to the spliced large screen.
The technical scheme of the utility model specifically introduces as follows.
A distributed cross-domain large-screen synchronization device comprises a wide area network server, a plurality of local area network servers and a plurality of media service gateways; each local area network server is connected with a media service gateway through a wide area network server; wherein: each local area network server comprises a video signal collector, an encoder, a decoder, a video signal output device and a display screen, wherein the video signal collector, the encoder, the decoder, the video signal output device and the display screen are connected in the local area network through a network switch; the input end of the video signal collector is connected with a video signal source, the output end of the video signal collector is connected with the encoder, the decoder is connected with the input end of the video signal output device, and the output end of the video signal output device is connected with the display screen; the encoder in each local area network server is connected with a media service gateway through a wide area server, and the media service gateway is connected with the decoder in the local area network server.
The utility model discloses in, LAN server passes through router and wide area network server both way junction.
The utility model discloses in, LAN server passes through VPN network connection wide area network server.
The utility model discloses in, through router both way junction between wide area network server and the media service gateway.
The utility model discloses in, video signal source includes cell-phone, computer and network camera.
The utility model discloses in, the display screen is the concatenation large-size screen.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the prior art is only limited to large-screen interaction in a local area network, and when equipment is in different areas, real-time large-screen interaction cannot be achieved. The utility model discloses utilize the video signal collector can gather the video input signal, the input signal who will gather through the coding processing unit converts the network series flow into, dispatch in unison through the wide area network server, forward the decoding processing unit in the local area network server via media service gateway, convert and transmit to the video signal follower after the video lossless code stream into, finally show on the display screen, export these shared signal on the display screen, thereby gather the video input signal with different areas and carry out real-time sharing, through on exporting the concatenation screen with these shared signal, just can reach the large-size screen synchronization of crossing the region. This allows the device to be used even across multiple areas, which reduces the cost of deploying multiple projects in addition to increasing cross-domain interactivity. And the utility model discloses because finally export the video lossless code stream after the content on the large screen decodes the reduction again for standard network series flow, can have higher smoothness degree and definition than the network video stream of commonly used.
Drawings
Fig. 1 is the structure schematic diagram of the cross-domain large-screen synchronization device of the present invention.
Fig. 2 is a schematic diagram of a network between different lan servers and wan servers.
Fig. 3 is a diagram of the connection between a media service gateway and a wan server.
Fig. 4 is a specific flowchart of the large screen synchronous display of the present invention.
Fig. 5 is a schematic diagram of a typical application scenario of the present invention.
Reference numbers in the figures: the system comprises a video signal acquisition device 1, a network switch 2, an encoder 3, a wide area network server 4, a decoder 5, a video signal output device 6, a display screen 7, a router 8, a media service gateway 9 and a local area network server 10.
Detailed Description
The technical solution of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, each lan server 10 includes a plurality of video signal collectors 1, a plurality of video signal output devices 6, a plurality of encoders 3, and a plurality of decoders 5. The video signal collector 1 can collect video input signals of a computer, a network camera, media input equipment and the like, the collected video signals are transmitted to the encoder 3 through the network switch 2, the encoder 3 encodes the video input signals into network standard streaming, the network streaming is divided into ONVIF, RTSP, TS and RTMP protocol streaming, network streaming resources of different protocols can be provided according to different specific requirements, and then the network streaming resources are transmitted to public network services through a VPN network.
The equipment used in the utility model, wherein the wide area network server 4, the media service gateway 9 and the local area network server 10 are pure software components, and have no hard requirement on the equipment; the network switch 2 needs to support the multicast function, and generally uses Huashi and Boda products; the encoder 3 and the decoder 5 need to support the H.264/H.265 encoding protocol; the video signal collector 1 and the video signal output device 6 need to adopt a processor supporting distributed large-screen splicing; the display screen 7 and the router 8 have no special requirements and can be made of common products in the market.
The public network service comprises a wide area network server 4 and a plurality of media service gateways 9, and the specific connection mode is shown in fig. 3. The wan server 4 is responsible for receiving the standard network streams transmitted from the lan server and distributing all the standard network streams to different media service gateways 9.
When the local area network server 10 applies for sharing signal resources to the wide area network server 4, the wide area network server 4 selects an optimal line according to the network conditions of the target service and the media service gateway 9, and the media service gateway 9 of the optimal line is connected with the local area network server 10. The wan server 4 finally returns the network stream address to the lan server 10, which is actually a copied stream generated after being copied by the media service gateway 9.
The network lines between the wan server 4 and the lan servers 10 are shown in fig. 2. The local area network servers 10 of each region are isolated from each other through a network, each local area network server 10 is connected to the wide area network server 4 through the router 8, and the wide area network server 4 carries out unified scheduling management.
The specific flow chart of the present invention is shown in fig. 4. Each lan server 10 may issue various video signals to the wan server 10, and when the issuance is successful, the information of the shared signal is recorded in the wan server 4, so as to ensure that the network bandwidth resource is utilized to the maximum, at this time, the network streaming of the signal is not actually transmitted, and when the lan servers 10 in other regions initiate an application for the shared signal, the wan server 10 notifies the signal issuing party to provide the network streaming resource.
The access of the shared signal is specifically represented in that each local area network server 10 needs to make an application to the wide area network server 10, the wide area network server 10 forwards the application information to the requested party, then one media service gateway 9 is selected to receive the standard network streaming transmitted by the requested party, and finally the media service gateway 9 is copied to generate a network streaming address to be returned to the requesting party. When the applicant no longer uses the shared signal resource, the wan server 10 notifies the signal distributor to disconnect the media service gateway 9, so as to release the resource in time.
Through the sharing of the video input signals, the shared signal resources are transmitted to the video signal output device 6 simultaneously in different regions, and are displayed on the display screen 7 through the video signal output device 6, so that cross-domain real-time same-screen interaction can be achieved.
Fig. 5 is the utility model discloses a typical application scene, the network conference is opened in the command hall of three different regions, and every meeting place is through the input signal who uses video signal collector 1 to gather the network camera, and video signal collector 1 transmits the video signal who gathers to encoder 3, carries out the transcoding to standard network series flow with the harmless code stream of video by encoder 3, through VPN network access wide area network server 4, transmits the video signal information that needs the sharing.
Each meeting place can see the signal information shared by other meeting places through the wide area network server 4, applies for all the shared signals except the locally issued signals to the wide area network server 4, comprehensively schedules and processes the signals by the wide area network server 4, selects different media service gateways 9 to receive the standard network streaming transmitted by each meeting place, and transmits the network streaming addresses back to each meeting place after transcoding and copying.
Each meeting place has three video signal resources at the same time, and three video signals can be displayed at any position of the display screen 7 by transmitting the three video signals to the video signal output device 6, so that the large screen content of each meeting place is the same, and the final purpose of cooperative interaction is achieved.
Claims (6)
1. A distributed cross-domain large-screen synchronization device is characterized by comprising a wide area network server, a plurality of local area network servers and a plurality of media service gateways; each local area network server is connected with a media service gateway through a wide area network server; wherein: each local area network server comprises a video signal collector, an encoder, a decoder, a video signal output device and a display screen, wherein the video signal collector, the encoder, the decoder, the video signal output device and the display screen are connected in the local area network through a network switch; the input end of the video signal collector is connected with a video signal source, the output end of the video signal collector is connected with the encoder, the decoder is connected with the input end of the video signal output device, and the output end of the video signal output device is connected with the display screen; the encoder in each local area network server is connected with a media service gateway through a wide area server, and the media service gateway is connected with the decoder in the local area network server.
2. The distributed cross-domain large-screen synchronization device according to claim 1, wherein the local area network server is bi-directionally connected to the wide area network server through a router.
3. The distributed cross-domain large-screen synchronization device according to claim 1, wherein the local area network server is connected to the wide area network server through a VPN network.
4. The distributed cross-domain large-screen synchronization device according to claim 1, wherein the wide area network server and the media service gateway are connected in both directions through a router.
5. The distributed cross-domain large-screen synchronization device according to claim 1, wherein the video signal source comprises a mobile phone, a computer and a network camera.
6. The distributed cross-domain large-screen synchronization device according to claim 1, wherein the display screen is a tiled large screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022350893.6U CN213028384U (en) | 2020-10-21 | 2020-10-21 | Distributed cross-domain large-screen synchronization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022350893.6U CN213028384U (en) | 2020-10-21 | 2020-10-21 | Distributed cross-domain large-screen synchronization equipment |
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| Publication Number | Publication Date |
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| CN213028384U true CN213028384U (en) | 2021-04-20 |
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| CN202022350893.6U Active CN213028384U (en) | 2020-10-21 | 2020-10-21 | Distributed cross-domain large-screen synchronization equipment |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Shuo Inventor after: Chen Peng Inventor after: Ji Zaicheng Inventor after: Qiu Hao Inventor after: Wang Meng Inventor before: Liu Shuo Inventor before: Ji Zaicheng Inventor before: Qiu Hao |