数字电视条件接收系统的设计与实现

发布时间：2018-03-05 13:28

本文选题：条件接收　切入点：数字视频广播　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：条件接收技术已经发展了很多年,它是广播电视行业向前发展的推动力。近些年来,CA技术一直是现今广播电视领域研究和发展的热点,随着科学技术的发展,数字电视节目已经走进了千家万户。在中国,有线电视的数字化是必须的,国家的向前发展离不开它,它也与社会和人民的利益紧密相关。国家广播局为了让人民群众能够更好的收看到电视节目,一直在坚定不移的大力发展数字电视,早在2003年就制定出了模拟电视逐渐数字化的时间表[1]。数字电视是这个世纪的新兴起的产业,有很强的发展潜力,它可以很好的增强一个国家的经济发展,全世界各个国家都为此设立了一系列相关政策来规划和推进电视的数字化进程。这个系统软件是在windows平台下用C++编程语言在Microsoft Visual C++6.0工具上进行开发的。本文中,本人的工作重心是数字电视条件接收系统和用户管理系统的设计和实现。两者紧密不可分离,运营商对电视节目和用户的管理工作,只有在两个系统的共同作用下才能顺利完成。在绪论中,首先介绍了数字电视条件接收的相关概念、特点和技术优势,然后描述了条件接收系统的国内外发展趋势以及未来的发展前景。接下来在第二章的理论介绍中,重点阐述了CA系统的工作原理和典型框架,着重分析了同密和多密的加密方法和加密流程。第三章,首先对该项目进行了阐述,然后按照行业要求,提出了条件接收系统进行设计和研发需要遵守的依据和标准。最后提出了CA系统在功能和性能两个方面的具体需求。在第四章里,刚开始讲了数字电视条件接收系统的整体架构、设计思路和各模块的工作流程。其中在总体设计部分,分别从软件功能和工作流程两方面对各个模块进行了介绍。第五章详细描述了数字电视条件接收系统软件的功能实现,展示了软件的界面截图,把各个模块的流程图拿来做了简单的列举和分析。第六章内容主要描述了系统的部分功能测试,设计了授权管理和智能卡工作时段测试用例,最后主要描述了用户个人信息管理的测试结果。在文章最后,对自己所做的论文研究工作进行了总结,对条件接收技术的发展方向进行了展望。
[Abstract]:Conditional access technology has been developed for many years, it is the driving force of the development of radio and television industry. In recent years, CA technology has been a hot spot in the field of radio and television research and development, with the development of science and technology, Digital TV programs have entered thousands of households. In China, the digitization of cable television is necessary, and the development of the country cannot be separated from it. It is also closely related to the interests of society and the people. In order to enable the people to better watch TV programs, the State Broadcasting Bureau has been unswervingly developing digital television. As early as 2003, a timetable was drawn up for the gradual digitization of analog television. Digital television is a new and emerging industry in this century, and has a strong potential for development. It can enhance a country's economic development very well. Various countries all over the world have set up a series of related policies to plan and promote the digitization process of television. This system software is developed on the Microsoft Visual C 6.0 tool with C programming language under the windows platform. The focus of my work is the design and implementation of the digital TV conditional access system and the user management system. Only under the joint action of the two systems can it be successfully completed. In the introduction, the related concepts, characteristics and technical advantages of digital TV conditional access are introduced. Then it describes the development trend of conditional access system at home and abroad and the prospect of future development. Then in the second chapter of the theoretical introduction, focuses on the working principle and typical framework of CA system. This paper mainly analyzes the encryption methods and the encryption flow of the same encryption and multi-encryption. Chapter three, first describes the project, and then according to the requirements of the industry, The basis and standard for the design and development of conditional access system are put forward. Finally, the specific requirements of CA system in function and performance are presented. In Chapter 4th, At the beginning, the whole architecture, the design idea and the work flow of each module of the digital TV conditional access system are introduced. Among them, in the overall design part, Each module is introduced from two aspects of software function and work flow respectively. Chapter 5th describes the function realization of digital TV conditional access system software in detail, and shows the interface screenshot of the software. The flow chart of each module is briefly listed and analyzed. Chapter 6th mainly describes some functional tests of the system and designs authorization management and smart card working time test cases. At the end of the paper, the author summarizes the research work done by himself, and looks forward to the development direction of conditional access technology.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN949.197

【参考文献】