Design And Realization Of High Definition Broadcasting And Control System Of TV Station

With the continuous development of industry-wide integration of high-definition television broadcasting and television and the vast number of television viewers on the continuous improvement of audio-visual experience,the original system of Qingdao TV Broadcasting Control room has been unable to meet the needs of all aspects,but also the lack of storage capacity and interconnection Interoperability security risks.In this context.Qingdao TV HD broadcast control system upgrade,expansion and transformation is imminent.Qingdao TV HD broadcast control system,including high definition TV signal compatible television broadcast video and audio systems and automatic broadcast control network system in two parts.Nine broadcasting channels(one for backup)were constructed and put into use,including three SDTV simulcast channels and seven broadcast channels compatible with SD broadcasting;to broadcast program files as the core of automatic broadcast control network.The high-definition broadcast control system using network broadcast architecture,through the expansion of services and services between the definition of the process to build a full-process file-based program broadcast system;system uses different technical means to ensure that different types of channels The system uses a dynamic intelligent optimization algorithm,according to the broadcast time of the program,the importance of dynamically adjusting the priority of the migration strategy to achieve the intelligent file preparation and intelligence based on the various channels of the automatic The distribution of video recorders use;system through the media files in different channels,different banks life cycle management,media files to achieve global control:system uses a two-tier storage architecture,the deployment of multi-storage management platform to meet the large Scale network broadcast system for complex equipment needs;system for different memory using different technical quality control programs,to achieve the purpose of maximizing security broadcast,while establishing a highly available system-level backup mechanism to achieve the system Downtime overhaul of the channel uninterrupted broadcast.The construction and putting into operation of the HD broadcast control system of Qingdao TV Station greatly enhanced the security precaution capability and monitoring of the broadcast control platform.ensured the safe and high-quality broadcast of the program,completed the overall HD upgrade of the whole station broadcast system and laid the foundation for the future Can smoothly transition to the basis of full HD broadcast control system:achieved with the whole station backbone network interconnection and interoperability,improve the efficiency and security of documentary preparedness for the future of the entire network to open up the program broadcast the key link.So that the safety of all channels in Qingdao TV broadcast aired on a new level.