Design And Implementation Of Digital TV Content Management System

Industries in recent years, with the speeding up of digital and network construction, more and more small and medium-sized television and radio and television industry users look at the digital audio data storage, management and reuse are also higher and higher, especially how to increase production and programming material call facility and management has become the most major problem facing now, all this shows that everyone is in urgent need of television content with advanced technology, products and ideas to change the backward way of audio material resources management application, storage and production of connectivity problems.This is our research and development on the basis of this subject.On the specific research work, this thesis topic first combined with the demands of this system, using the characteristics of the Java platform, by using coordinate type multitasking, the task allocation solution based on user permissions, according to the process flow of the user permissions in each node selection of the corresponding mechanism, based on the original task allocation for the corresponding improvement based on Java, implements the flexibility of assigned tasks, conform to the requirements of practical application.Second, the system adopts the hierarchical storage system setup, according to the importance of the application and access concurrency requirements, call MemoryCache based on Java cache optimization techniques such as data cache sharing and communication, and will frequently accessed data and access to the low frequency data, stored separately to different partitions and different database server, so that the integration of distribution of the hard disk I/O and I/O system, realized the heterogeneous storage systems in disaster compatibility, scalability, fault tolerance, etc, the balance of the problem.Finally, by aiming at the characteristics of data distributed storage system, when the user input related query conditions, through the page retrieval system oriented to download requests or high bit rate data view request, storage management system response to the call by the user or download the output request, rapid positioning program, if the data in the disk array, directly downloaded to the traditional media or direct access to external network is to edit the user editor calls;If the data in the data flow in the tape, the system will through the server the data returned to hard disk array output to the user, to achieve the efficient and safe access to data.Overall, through successful construction of the system, implemented including storage management module, concentrates on module, material inventory module, search module and system management module, the system’s overall function of architecture, built a television program Shared resource platform, in order to better storage, management and use of television has accumulated.Digital broadcast for the program to edit and create the conditions detailed program description, specification, made it possible to reporters, editors, fast query, the implementation program information centralized and unified management, is helpful for the unity of the standard and statistical retrieval.