CN112383833A - Virtual IP broadcasting technology - Google Patents
Virtual IP broadcasting technology Download PDFInfo
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- CN112383833A CN112383833A CN202011302364.7A CN202011302364A CN112383833A CN 112383833 A CN112383833 A CN 112383833A CN 202011302364 A CN202011302364 A CN 202011302364A CN 112383833 A CN112383833 A CN 112383833A
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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
- H04N21/61—Network physical structure; Signal processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
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- Multimedia (AREA)
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- General Health & Medical Sciences (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the technical field of video broadcasting, and discloses a virtualization IP broadcasting technology, which comprises two general servers or server clusters, a main general server and a standby general server respectively, and further comprises: the system comprises a ten-gigabit gateway, a ten-gigabit gateway and a four-gigabit gateway, wherein the ten-gigabit gateway is arranged at four positions and is respectively a first ten-gigabit gateway, a second ten-gigabit gateway, a third ten-gigabit gateway and a fourth ten-gigabit gateway, and the first ten-gigabit gateway is connected with an acquisition stream switch through a high-definition digital component serial interface; the invention uses pure CPU operation, does not depend on GPU or hardware coding and decoding card, all I/O hardware interfaces are converted into network interfaces based on IP, and web service technology is adopted for configuration and control, thus having rapid deployment capability, facilitating information acquisition, monitoring and control, having the capability of providing regional live broadcast events and news programs across regions, being not limited by broadcast files and signal formats, being capable of diversified setting as required, and having the characteristics of good flexibility, easy maintenance, timely hardware updating and the like.
Description
Technical Field
The invention relates to the technical field of video broadcasting, in particular to a virtual IP broadcasting technology.
Background
With the development of services, the continuous expansion of new media and the development of high-definition network production and broadcasting, a technical architecture based on an SDI baseband video interface and a special SDI digital video matrix from program production and broadcasting to program transmission in a broadcast television center is difficult to meet the development requirements of future technology and service expansion, along with the high-speed development of computer general technology and Internet application technology, the requirements of users on the quality of program pictures are continuously improved, the IP of a basic architecture is realized, and the IP and the SDI technical architecture are mutually fused and will be imperative.
Compared with the traditional broadcasting, the IP broadcasting of the invention does not depend on private hardware or an additional I/O card, and adopts hardware such as a general IT server switch and the like to pay attention to virtualization and resource sharing.
Disclosure of Invention
The present invention is directed to a virtualized IP broadcasting technology to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a virtual IP broadcasting technology comprises two general servers or server clusters which are respectively a main general server and a standby general server, and further comprises:
the system comprises a ten-gigabit gateway, a three-gigabit gateway and a four-gigabit gateway, wherein the ten-gigabit gateway is arranged at four positions and is respectively a first ten-gigabit gateway, a second ten-gigabit gateway, a third ten-gigabit gateway and a fourth ten-gigabit gateway;
the VTR and the emergency VTR are arranged at two positions, the VTR is connected with the first tera gateway through a digital component serial interface, and the emergency VTR is connected with the fourth tera gateway through a digital component serial interface;
the system control switch is respectively in data transmission with the first tera gateway and the two universal servers, and the first tera gateway and the second tera gateway are in data transmission;
the ten-million flow switch is arranged at two positions and respectively performs data transmission with two universal servers, the transmission line is mutually matched with the three-number ten-million gateway and the four-number ten-million gateway for use, and simultaneously transmits signals to the IP multi-picture monitoring terminal;
the network storage servers are arranged at two positions and respectively perform data transmission with the two gigabit switches, the two network storage servers are respectively in signal connection with the master control gigabit switch, and the master control gigabit switch performs data transmission with the second gigabit gateway.
Preferably, the second gigabit gateway is respectively connected with a baseband general environment, an h.264 encoder and an HDSDI play monitor/monitor through a digital component serial interface.
Preferably, the master control ten thousand megabytes switch performs multi-screen release of the converged media through a database client, and the media release comprises live network broadcast, an intra-station local area network, a network television station, a mobile television, Web and IPTV.
Preferably, a single node of the universal server can provide a plurality of bidirectional SD & HD channels or 1 UHD ultra high definition channel, and as the computing power of the computer is improved, the number of supported channels is increased accordingly.
Preferably, the output interface of the universal server is a universal ethernet interface, adopts an uncompressed SDI-OVER-IP format, and conforms to SMPTE ST2022-6 (IP network high-rate media signal transmission) and SMPTE ST2110 protocol standards.
Preferably, the universal server synchronization adopts IEEE1588 PTPv2 (SMPTE 2059-2: 2015), the synchronization precision can reach microsecond level by utilizing a differential calculation technology, and the standard meets the SMPTE S2022-7 IP data packet signal seamless routing switching protection protocol standard.
Preferably, the universal server realizes real-time broadcasting of the single physical node multichannel high-definition uncompressed video IP stream by combining a virtualization technology and independently developed software operation.
Preferably, the environment of the universal server supports multiple encoded file formats.
Preferably, the universal server supports the collection, editing and broadcasting of high-standard-definition signals in stand-alone application, and serves as a multichannel high-definition and UHD (ultra high definition) uncompressed IP (Internet protocol) broadcasting server in broadcasting system application.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses pure CPU operation, does not depend on GPU or hardware coding and decoding card, all I/O hardware interfaces are changed into network interfaces based on IP, and the web service technology is adopted for configuration and control, thereby having rapid deployment capability, facilitating information acquisition, monitoring and control, having the capability of providing regional live broadcast events and news programs across regions, being not limited by broadcast files and signal formats, being capable of being variously set according to requirements, and having the characteristics of good flexibility, easy maintenance, timely hardware updating and the like;
2. the design of the invention fully considers the application requirements of the service supporting platform of the whole platform network in the future, and the most comprehensive open design is made from the media data exchange, the media information exchange and the resource sharing of programs in the links of Enterprise Service Bus (ESB), media service bus (EMB), public service, system monitoring and the like, and reasonable and perfect software and hardware interfaces are reserved, which is mainly expressed in that: the system comprises an IT-level network architecture and a storage architecture, wherein a support service (LaaS) is laid for a cloud computing broadcast control platform; the broadcasting system exchanges media data with each future service system, supports various exchange forms, supports various network access modes and file transmission protocols, provides processing for the format and content of all-media broadcasting control media data, and has an open system architecture and supports sustainable development;
3. the intelligent IP virtualization broadcasting system adopts a mature virtualization system solution scheme to protect the driving and navigation, avoids resource waste caused by uneven service distribution while providing service servitization and resource pooling, has the advantages of resource sharing, dynamic load optimization, automatic management and improvement of the service processing efficiency of the whole system, optimizes system deployment and service work due to the application of a virtual pooling service mode of the intelligent IP virtualization broadcasting system, combines multiple routes with various service functions such as uploading, transcoding, migration and the like, and greatly reduces the risk of single-machine break points of a server and improves the working efficiency of the whole system due to the working mode of a service servitization cluster;
4. the interconnection and intercommunication among the systems adopts a dual-bus architecture based on an SOA architecture, fully considers the safety requirements of uploading, storing, interacting and sharing of program resources, and has perfect network interfaces, data interfaces and management interfaces with a program list query system of a non-woven network, a news network, an advertisement system, a media resource management system, a recording system, an office network and the like, thereby providing a safe, reliable and comprehensive solution and technical support for building the whole network architecture.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a virtualized IP broadcasting technique includes two general servers or server clusters (which may also be blade computer clusters, and provide a corresponding number of general server supports according to the number of broadcasting channels and the computational effort required by the computational requirements), which are respectively a main general server and a standby general server, and further includes:
the ten-gigabit gateway is arranged at four positions and is respectively a first ten-gigabit gateway, a second ten-gigabit gateway, a third ten-gigabit gateway and a fourth ten-gigabit gateway, the first ten-gigabit gateway is connected with an acquisition stream switch through a high-definition digital component serial interface, and the acquisition stream switch is respectively connected with two universal servers through high-definition digital component serial interfaces;
it should be noted that: the specific number of gateways is determined by the number of interaction between the broadcasting system and the external traditional SDI signals, and may be 1 or N.
The VTR and the emergency VTR are arranged at two positions, the VTR is connected with the first tera gateway through a digital component serial interface, and the emergency VTR is connected with the fourth tera gateway through a digital component serial interface;
the system control switch is respectively in data transmission with the first tera gateway and the two universal servers, and in data transmission with the first tera gateway and the second tera gateway;
the ten-million flow switch is arranged at two positions and respectively performs data transmission with two universal servers, the transmission line is mutually matched with the three-number ten-million gateway and the four-number ten-million gateway for use, and simultaneously transmits signals to the IP multi-picture monitoring terminal;
the network storage servers are arranged at two positions and respectively perform data transmission with the two gigabit switches, the two network storage servers are in signal connection with the master control gigabit switch, and data transmission is performed between the master control gigabit switch and the second gigabit gateway.
The invention uses pure CPU operation, does not depend on GPU or hardware coding and decoding card, all I/O hardware interfaces are converted into network interfaces based on IP, and web service technology is adopted for configuration and control, thus having rapid deployment capability, facilitating information acquisition, monitoring and control, having the capability of providing regional live broadcast events and news programs across regions, being not limited by broadcast files and signal formats, being capable of diversified setting as required, and having the characteristics of good flexibility, easy maintenance, timely hardware updating and the like.
In this embodiment, the second gigabit gateway is connected to the baseband total environment, the h.264 encoder, and the HDSDI broadcast monitor/listener through the digital component serial interface, and the baseband total environment can also perform data transmission through a cable.
In the embodiment, the master control trillion switch performs multi-screen release of the converged media through the database client, and the media release comprises live broadcast, an intra-station local area network, a network television station, a mobile television, Web and IPTV.
In this embodiment, a single node of the universal server may provide a plurality of bidirectional SD & HD channels or 1 UHD ultra high definition channel, and as the computing capability of the computer is improved, the number of supported channels may correspondingly increase, and the high density, low power consumption and robust reliability of the system further reduce capital expenditure while providing high availability, simplify the workflow and reduce the operation cost.
In this embodiment, the output interface of the universal server is a universal ethernet interface, adopts a non-compressed SDI-OVER-IP format, and conforms to SMPTE ST2022-6 (IP network high-bit rate media signal transmission) and SMPTE ST2110 protocol standards, thereby implementing a solution for broadcast television, and audio broadcasting with high fusion, high bandwidth, high expansion, and high reliability in a universal IT environment.
In the embodiment, the universal server synchronously adopts IEEE1588 PTPv2 (SMPTE 2059-2: 2015), the synchronization precision can reach microsecond level by utilizing a differential computing technology, the standard of SMPTE S2022-7 IP data packet signal seamless routing switching protection protocol is met, a special video server and video and audio processing peripheral equipment are not needed, and the construction of a broadcasting cloud data center is met.
In the embodiment, the universal server realizes real-time broadcasting of the single physical node multichannel high-definition uncompressed video IP stream by combining a virtualization technology and independently researched and developed software operation, and cost is effectively reduced.
In the embodiment, the environment of the universal server does not need any video and audio professional board card, supports various encoding file formats, can realize mixed broadcasting of multi-format files, and provides a low-cost and high-performance solution for a television station to construct a high-definition broadcasting channel and respond to the construction of a future full IP system.
In the embodiment, the universal server supports the collection, editing and broadcasting of high-definition signals in single-machine application, serves as a multichannel high-definition and UHD uncompressed IP broadcasting server in broadcasting system application, and is the best choice for large and medium television stations to construct a high-definition uncompressed IP broadcasting system.
The key functional characteristics of the invention are as follows:
1. the virtualization processing technology is utilized to cooperate with a plurality of CPUs to work, so that enough processing resources can be locked to ensure stable, reliable and ultralow delay output of uncompressed high-definition IP video streams, and direct network drive programming is adopted to modify the related limitation of network connection in a network, so that high-capacity packet sending can be realized, and multichannel and high-definition uncompressed IP stream broadcasting is realized;
2. the method supports uncompressed SD (270 Mb/s), HD (1.485 Gb/s), 3G (2.97 Gb/s) and UHD (12 Gb/s) high-stability IP stream input/output, provides Dual 10GbE full-duplex fiber link support, and can be expanded to 25GbE, 40GbE and 100GbE full-duplex links;
3. various coding and decoding modes: support DVCPro25, DVCPro50, MEPG 2I, MPEG2 IBP, h.264;
4. various file formats: AVI, GXF, MXF, WAV, MPG, TS, MP 4;
5. the virtual Vmotion technology can be utilized to move the broadcasting running state from one physical machine to another physical machine for continuous running, thus realizing the non-inductive takeover of IP streaming broadcasting service and ensuring the broadcasting safety, which is a function that can not be realized by the traditional broadcasting server;
6. the system is internally provided with a programmable preset non-compressed IP stream net switching function, can realize the seamless switching of real-time live broadcast stream IP stream and broadcast stream, realizes the rebroadcasting of external signals, and can automatically start a virtual machine of service to be broadcasted to take over a fault broadcast service virtual machine when the virtual machine executing the broadcast service is abnormal, thereby ensuring the broadcast safety;
7. based on a general IT server platform, any known brand common server or blade server can be selected, so that the stable and reliable basic operation is ensured, the hardware of the traditional professional radio and television server is abandoned, the functions of a switcher, a station logo machine, a key controller and the like can be integrated, and a broadcasting system core solution with low cost construction and maintenance is provided for a television station;
8. based on the application software architecture of the microservice, a network equipment interface protocol (NDI) is adopted to realize the real-time superposition of 4-path high-definition IP caption streams, and the external high-definition IP stream character curtain service realizes the broadcasting of station captions, time marks, moving captions, moving corner captions and the like; the system realizes the synchronous linkage function of the high-definition IP flow graph text curtain system and the broadcasting end by utilizing a network, and thoroughly abandons the traditional radio and television special equipment such as a station marking machine, a key controller and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A virtual IP broadcasting technology comprises two universal servers or server clusters which are respectively a main universal server and a standby universal server, and is characterized by further comprising the following steps:
the system comprises a ten-gigabit gateway, a three-gigabit gateway and a four-gigabit gateway, wherein the ten-gigabit gateway is arranged at four positions and is respectively a first ten-gigabit gateway, a second ten-gigabit gateway, a third ten-gigabit gateway and a fourth ten-gigabit gateway;
the VTR and the emergency VTR are arranged at two positions, the VTR is connected with the first tera gateway through a digital component serial interface, and the emergency VTR is connected with the fourth tera gateway through a digital component serial interface;
the system control switch is respectively in data transmission with the first tera gateway and the two universal servers, and the first tera gateway and the second tera gateway are in data transmission;
the ten-million flow switch is arranged at two positions and respectively performs data transmission with two universal servers, the transmission line is mutually matched with the three-number ten-million gateway and the four-number ten-million gateway for use, and simultaneously transmits signals to the IP multi-picture monitoring terminal;
the network storage servers are arranged at two positions and respectively perform data transmission with the two gigabit switches, the two network storage servers are respectively in signal connection with the master control gigabit switch, and the master control gigabit switch performs data transmission with the second gigabit gateway.
2. The virtualized IP playout technique of claim 1, wherein: the second gigabit gateway is respectively connected with a baseband general environment, an H.264 encoder and an HDSDI broadcast monitor/monitor through a digital component serial interface.
3. The virtualized IP playout technique of claim 1, wherein: the master control ten-gigabit switch performs multi-screen release of converged media through a database client, and the media release comprises live broadcast, an intra-station local area network, a network television station, a mobile television, Web and IPTV.
4. The virtualized IP playout technique of claim 1, wherein: a single node of the general server can provide a plurality of bidirectional SD & HD channels or 1 UHD ultra high definition channel, and the number of supported channels can be increased correspondingly with the improvement of the computing capability of a computer.
5. The virtualized IP playout technique of claim 1, wherein: the output interface of the universal server is a universal Ethernet interface, adopts an uncompressed SDI-OVER-IP format, and conforms to SMPTE ST2022-6 (IP network high-rate media signal transmission) and SMPTE ST2110 protocol standards.
6. The virtualized IP playout technique of claim 1, wherein: the universal server adopts IEEE1588 PTPv2 (SMPTE 2059-2: 2015) for synchronization, the synchronization precision can reach microsecond level by utilizing a differential calculation technology, and the standard meets the SMPTE S2022-7 IP data packet signal seamless routing switching protection protocol standard.
7. The virtualized IP playout technique of claim 1, wherein: the universal server realizes real-time broadcasting of a single physical node multichannel high-definition non-compressed video IP stream by combining a virtualization technology and independently researched and developed software operation.
8. The virtualized IP playout technique of claim 1, wherein: the environment of the universal server supports multiple encoding file formats.
9. The virtualized IP playout technique of claim 1, wherein: the universal server supports the collection, editing and broadcasting of high-standard-definition signals in single-machine application, and serves as a multichannel high-definition and UHD (ultra high-definition) uncompressed IP (Internet protocol) broadcasting server in broadcasting system application.
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| CN114727118A (en) * | 2022-04-06 | 2022-07-08 | 北京广播电视台 | Television station ultra-high definition broadcasting framework capable of realizing light weight broadcasting |
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