Study On The Digitized Plan Of Producing And Broadcasting Network For People's Broadcasting Station Of Anhui

The technology development of modern information and digitization had brought great changes in radio technology construction. It had been developed into a digital network model for realization of program functions from recording, scheduling, storaging to broadcasting and etc.,instead of the forms by the simplex equipment and artificial convergence in the past. So it Contributed to the improvement of the broadcasting quality,bettered production methods and techniques of programming,enhanced the integration and use of resources, and improved efficiency in the production of radio programs and reliability of broadcasting safety. At present it was a new era of much more digital, information-based and network-based, an era of mutual penetration and continued integration between a variety of network technology on productin and broadcast of radio stations and network technology development trend. Thus a good technical support was provided for building high-quality digital network system of the radio station. Administration of Radio, Film and Television also approved?the White Paper in digital radio network construction (2006)? in February 6, 2007. So it was necessary for the cause and development of broadcasting stations to study construction of digital radio network system, the way to achieve the function as well as the development trend of networks.According to requirements of the "White Paper" and problems of producing and broadcasting network in digital networked system for People's Broadcating Station of Anhui, the development process of the domestic digital radio network was introduced and the common problems in application were presented. Particularly,a great deal of research was made in producing and broadcasting network for digital network system in Anhui Radio.Furthermore,some problems with trouble were discovered and the technology solution of digital networked system was designed, and the core issues encounered in system design were also thoroughly discussed. The work of this paper included:1. an in-depth study had been made on the basic technology related to the digital radio network system: digital audio technology, source coding, channel coding technology, the technical standards for encoding audio, synchronization of digital audio devices,etc.2. analysed application situation and inadequacies of digitized networked system for People's Broadcating Station of Anhui such as function and integration of system, security policy of the system , interoperability issues of heterogeneous network.3. Specific to the problems of the original system, a producing and broadcasting network system program was designed in line with the development requirements of Anhui Radio which included business process analysis and functional design, system architecture design, data formats and interface design and security design. Then security mechanism and implementation steps of the system were given. Finally, a scientific forecast of operation efficiency to the built system was made.The innovation of this paper was that an analysis of the digital radio network system model was made, the deficiencies in the digital network system of People's Broadcating Station of Anhui were given, and a study was carried out focuing on system security, network interconnection, data formats and interfaces with the latest network technology and digital audio technology, finally a solution of digital networked system and implementation steps for producing and broadcasting network of Anhui Radio was presented.