本文選題：條件接收　切入點：數(shù)字視頻廣播　出處：《電子科技大學》2014年碩士論文　論文類型：學位論文

【摘要】：條件接收技術(shù)已經(jīng)發(fā)展了很多年,它是廣播電視行業(yè)向前發(fā)展的推動力。近些年來,CA技術(shù)一直是現(xiàn)今廣播電視領域研究和發(fā)展的熱點,隨著科學技術(shù)的發(fā)展,數(shù)字電視節(jié)目已經(jīng)走進了千家萬戶。在中國,有線電視的數(shù)字化是必須的,國家的向前發(fā)展離不開它,它也與社會和人民的利益緊密相關(guān)。國家廣播局為了讓人民群眾能夠更好的收看到電視節(jié)目,一直在堅定不移的大力發(fā)展數(shù)字電視,早在2003年就制定出了模擬電視逐漸數(shù)字化的時間表[1]。數(shù)字電視是這個世紀的新興起的產(chǎn)業(yè),有很強的發(fā)展?jié)摿?它可以很好的增強一個國家的經(jīng)濟發(fā)展,全世界各個國家都為此設立了一系列相關(guān)政策來規(guī)劃和推進電視的數(shù)字化進程。這個系統(tǒng)軟件是在windows平臺下用C++編程語言在Microsoft Visual C++6.0工具上進行開發(fā)的。本文中,本人的工作重心是數(shù)字電視條件接收系統(tǒng)和用戶管理系統(tǒng)的設計和實現(xiàn)。兩者緊密不可分離,運營商對電視節(jié)目和用戶的管理工作,只有在兩個系統(tǒng)的共同作用下才能順利完成。在緒論中,首先介紹了數(shù)字電視條件接收的相關(guān)概念、特點和技術(shù)優(yōu)勢,然后描述了條件接收系統(tǒng)的國內(nèi)外發(fā)展趨勢以及未來的發(fā)展前景。接下來在第二章的理論介紹中,重點闡述了CA系統(tǒng)的工作原理和典型框架,著重分析了同密和多密的加密方法和加密流程。第三章,首先對該項目進行了闡述,然后按照行業(yè)要求,提出了條件接收系統(tǒng)進行設計和研發(fā)需要遵守的依據(jù)和標準。最后提出了CA系統(tǒng)在功能和性能兩個方面的具體需求。在第四章里,剛開始講了數(shù)字電視條件接收系統(tǒng)的整體架構(gòu)、設計思路和各模塊的工作流程。其中在總體設計部分,分別從軟件功能和工作流程兩方面對各個模塊進行了介紹。第五章詳細描述了數(shù)字電視條件接收系統(tǒng)軟件的功能實現(xiàn),展示了軟件的界面截圖,把各個模塊的流程圖拿來做了簡單的列舉和分析。第六章內(nèi)容主要描述了系統(tǒng)的部分功能測試,設計了授權(quán)管理和智能卡工作時段測試用例,最后主要描述了用戶個人信息管理的測試結(jié)果。在文章最后,對自己所做的論文研究工作進行了總結(jié),對條件接收技術(shù)的發(fā)展方向進行了展望。
[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.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN949.197

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