DVB数字电视中间件数据管理模块的研究与实现

发布时间：2019-01-28 18:53

【摘要】：在日常生活中,电视广播已成为人们认识世界、获取外界资讯和生活娱乐的重要工具。数字电视的出现是电视广播史上最重大的事件之一，它不仅大大提高了电视音频和视频的质量，还改变了传统的收视模式，能够提供电视网站、视频点播、远程教育、信息服务等多项增值业务。随着信息技术的不断发展和人们对电视娱乐的高要求，交互式电视越来越受到重视。为实现交互式电视提供的各项增值业务，必须采用数字电视中间件技术。数字电视中间件是位于应用程序和操作系统之间的一种系统软件，通过定义一组支持数字电视应用功能的标准程序接口，使应用程序具有与底层硬件平台无关的特点。它出现的意义就是不用过多的考虑底层硬件的差异，方便了软件和代码的移植，简化了上层软件程序的开发流程，节省了数字电视的研发成本。目前，数字电视受到越来越多的国内外厂家的关注，国外对数字电视中间件系统的研究已经取得了一定的进展，而国内的研究起步较晚。因此，研究开发具有自主知识产权的数字电视中间件平台具有重要的理论意义和广泛的应用价值。本文的选题背景为基于企业项目的研发，主要对数字电视中间件进行了研究，介绍了数字电视中间件的概念，对当今的各个中间件标准进行了比较研究，研究了DVB组织的多媒体家庭平台(MHP)。本文依据已有的中间件标准，进行了中间件模型实现，主要对其中数据管理模块进行了深入研究与设计实现。通过以上设计在相关数字电视平台上进行了测试，得到了预期的效果。
[Abstract]:In daily life, television broadcasting has become an important tool for people to understand the world, obtain information and entertainment. The emergence of digital television is one of the most important events in the history of television broadcasting. It not only greatly improves the quality of TV audio and video, but also changes the traditional viewing mode, which can provide television websites, video-on-demand, and distance education. Information services and many other value-added services. With the continuous development of information technology and people's high demand for television entertainment, interactive television has been paid more and more attention. In order to realize the value-added services provided by interactive TV, digital TV middleware technology must be adopted. Digital TV middleware is a kind of system software which is located between the application program and the operating system. By defining a set of standard program interfaces that support the function of digital television application, the application program is independent of the underlying hardware platform. The significance of it is that it does not need to consider the differences of the underlying hardware, facilitates the transplantation of software and code, simplifies the development process of the upper software program, and saves the research and development cost of digital TV. At present, more and more domestic and foreign manufacturers pay attention to digital television. The research on digital television middleware system has made some progress in foreign countries, but the domestic research started late. Therefore, the research and development of digital television middleware platform with independent intellectual property has important theoretical significance and wide application value. The background of this paper is the research and development based on enterprise project. It mainly studies the digital television middleware, introduces the concept of digital television middleware, and makes a comparative study on the current middleware standards. The (MHP)., a multimedia home platform organized by DVB, is studied. According to the existing middleware standards, this paper implements the middleware model, and mainly researches and designs the data management module. The above design is tested on the related digital TV platform, and the expected results are obtained.
【学位授予单位】：中国海洋大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP311.52;TN949.197

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