导　　师： 肖俊;宋蔚

学科专业： 0812

授予学位： 硕士

作　　者： ;

机构地区： 中国科学院

摘　　要： 随着社会化、网络化、信息化等代表媒体技术新工艺的出现和网络制播的发展,打造数字化播出系统已经成为各大电视台建设的重点。按照时代发展的需要,同时也为了更好的满足人民群众日益增长的文化需求,构建高清网络制播环境,并应用先进的网络化、数字化技术打造全程文件化播出系统既顺应了技术的发展方向,也将播出系统的设计推向了一个新的高度。 本文完成的主要工作包括： /(1/)对播出系统的需求进行了详细分析,明确了使用目的,并根据具体业务流程确定了整体设计原则及系统总体架构； /(2/)对视音频控制子系统和整备子系统进行了详细的方案设计,并对其进行了具体实现； /(3/)从共享调度及控制、下级机和节目准备三个方面对功能进行了测试,并从节目是否准点播出、下级机对节目的素材检查和视频服务器迁移速度等方面对性能进行了测试,验证了系统的有效性。 本文设计和实现的电视节目文件化播出系统已经投入使用。本系统根据播出业务需要从播出控制、节目整备、存储等方面实现了播出系统的全文件化播出,摆脱了录像磁带载体的传统模式,实现了节目质量、生产效率双提高。系统运行以来稳定可靠,基本上达到了预期的设计目标。 With the appearance of the socialized, networked and informationized media technology and the development of network-based production and broadcast technology, building a digital play-out system has become the key task for every popular TV station. In order to satisfy the requirements of development of times and the growing cultural needs of people, building the network-based HD environment of production and broadcast and developing the file-based play-out system for the whole process by using networking and digital technology, not only comply with the development direction of new technology but also push the design of the play-out system to a new level. The primary works in this thesis are presented as follows: /(1/)The requirements of the play-out system are analyzed in detail and the application aims are clearly defined. The overall design principles and the whole architecture of the system are confirmed according to the specific work flow; /(2/)The scheme of AV control subsystem and preparation subsystem are designed in detail, and they are also well achieved; /(3/)The functions of sharing scheduling control, lower-level machine and preparation of program are tested, and the performances on whether the system plays on time, checking TV program by lower-level machine and the migration speed of video server are also tested, which verify the validity of the system. The play-out system of TV program designed and implemented in this thesis has been put into use. According to the needs of play-out business, this system realizes the filed-based play-out in the whole process including play-out control, preparation of program and storage. This system gets rid of the traditional mode using video tapes as media and makes a progress in the program quality and production efficiency. It runs steadily and reliably, and achieves basically the expected design targets.

关 键 词： 文件化播出 播出系统 节目整备 播出控制 存储

分 类 号： [TN948.1]

领　　域： [电子电信] [电子电信]