subject: Huang Huize: "seven-play" Interoperability Construction Practice - Seven-play, Media [print this page] Mr. Huang Huize, chief engineer of Guangzhou TV Station
Keywords: integration of video and audio interconnection network of media asset management
Introduction 2003 1 month, for the technical system of digital basic is empty state, Guangzhou television stations for information technology, digital, network-building plan, and begin to implement, then on the 10 digital construction projects, including the media assets management, news production, programming, hard disk broadcast, satellite included, advertising production and broadcasting, integrated information platform 7 network. Construction of these projects has greatly improved my television program production, transmission and broadcast quality and management level.
However, in actual use, we found that these networks are physically independent, can not be interoperability between each other to form a an "information island", so resources can not be shared, managed and inefficient. Especially Guangzhou TV after 10 years of development, program information accumulated in the absence of a large number of digital catalog management, utilization is very low; the other hand, 34 channels and 6 channels run by a large number of program material collected each day, because there is no news to share system, fragmented, resulting in a large number of repeated investment of resources.
To solve these problems, the need to achieve interoperability between different networks, integrating a variety of resources to information sharing. To this end, we propose a "seven-play" integration of video and audio interconnection project construction and application of business systems to achieve the Guangzhou TV digital, networked strategic objectives.
"Seven-play" basis for implementation
News Production Network News Production Network is a set of automatic satellite program included, edit production, presentation, review films, dubbing, media assets stored (data storage backup, but the first man to have search function) and shows a complete production management system.
The system has 18 sets of editing workstation download, dubbing stations, 3 sets a workstation chip trial. Storage system using disk array DataDirectNetworks's S2A8000. FC and Ethernet in parallel with dual network structure, which used to build a FC network to share high-speed centralized network of workstations for real-time processing of high bit-rate card audio and video material; Ethernet for the entire system of management and other system access to low bit rate material. Use S2A8000 memory, 8 ports activated, 7.8TB of storage space, equivalent to about 50Mb/sMPEG2I effective storage 400h frame material. Use of safe and reliable 64 64 digital video / analog audio matrix download signal scheduling, 32 32 matrix control 422 controls. So that any one can be the equivalent on non-code / download 11 recorders, so that multi-format compatibility. Around the cluster using the Oracle9i database and software, with Sun Fire V480 and the surrounding cluster server software.
Programming network The system has 22 stations card NLE workstations, 16 sets DY8000 (with DTV board), 6 DY9000 (using Targa3000 board), to meet the special, part, party and other programming, real-time editing monitor , special production requirements. Center storage up to 14TB, the next 5 years to meet production needs. Using MPEG-2I frame compression technology, 50Mb / s bit rate. Disk array storage system uses S2A8000. SAN and LAN network structure of the combination, FC and Ethernet combined. Database using the Oracle9i. 8 sets
workstation platform and the ocean for my company to develop integrated video and audio workstation, with the Merging Company Mykerinos professional audio processing cards, audio processing functions can be realized. Furthermore, the production network can achieve and audio production network file exchange, audio workstations for the low reference video streams, and ultimately complete the synthesis of video and audio output. Production network in use has been stable, improved quality and efficiency of program production.
Broadcast network hard drive Guangzhou-Taiwan project is in the original hard disk broadcast 34 channels (digital video, audio simulation system), six cable channels (analog systems) based on the combination of upgrade dribbling broadcast system.
(1) hardware system. FC optical fiber and Ethernet with dual network structure, aired in two parts: A Room 2 channel, B channel 5 room, two rooms each with two hard drives provide the main server / prepare image signal broadcast monitoring to distinguish between read and provide standby signal pads. Hard drive server configuration, including upload server (upload channel 10 Road, output channel 6 Road); remote upload server (upload channel and output channels each 2-way); broadcast server (A room with output channels 8, B room with output channel 12 Road); near-line storage system using disk array configuration mode, storage time of not less than 2000h.
