Research On The Market Technology Of Next Generation Radio And TV Application

Android, announced by Google in November,2007, is a Linux-based open source operating system designed for mobile devices. It consists of the operating system, middleware, user interface and applications. Because of its rapid development and open source characteristics, Android has nurtured many third party application markets and meanwhile makes the Android-based intelligent TV operating system customization possible.On the other side, with the rapid development of information technology and more demand for social informationization, the industry fusion of the Next Generation Broadcasting, together with the integration of communication network, the Internet and the broadcast network, has become the main trend of industrial development. The triple play of network convergence is promoting new business patterns, reconstructing the traditional broadcasting and telecommunications industry chain, and then to bring the profound change to the national economy and social development.The next generation broadcasting TV is a new product rising with Android system and the triple play. The Application Market this article proposed runs on the TVOS which is the operating system modified from Android for intelligent terminals in NGB network. It relies on the design and implementation of the server. This article gives the system design and test cases on the base of clear the defining the system requirements; it gives how to implement the interaction between data and UI using asynchronous mechanism; it gives how to achieve efficient communication by communication protocol customization and using Google Protocol Buffer open source project; it gives the UI design, including a variety of custom view and some principles of optimizing application efficiency; it gives the research on incremental update mechanism which aims at reducing application update workload and network traffic; it also gives a solution to control application file source by researching the Android signature mechanism and application verification installation mechanism.This Application Market is the app download entrance for the TVOS. It’s also the package manager and installer. It not only provides downloading function for various applications, including games, for user, but also plays an decisive role in the control of application source and to ensure the security and stability of the system. Its future development may include social network access, more diverse recommendation, more access to "cloud", more interaction with other applications on the OS, access to electronic payment and etc.The next generation of broadcast television, with the transplantation of Android operating system, will greatly enrich the form and content of the digital home media. The build of the application market make it a platform with more applications and utilities, enabling better user experience, so that it can meet the growing digital networking needs of hundreds of millions of families in all aspects.