Digital Home Multimedia Applications, Protocol Analysis And Realization Of Research

In recent years, the concept of digital home has increasingly become hotter and hotter, and with the development of digital home technology, the global digital domestic product market is becoming more prosperous. This trend brings great potential and expectation for home net market. In such a situation, many information technology, which have profound influence on "digital home network", appear. There are lots of influential home network related standard organizations, like China's IGRS, e-home and UPnP (Universal Plug and Play) , Domestic Home Work Group(DHWG), ITU-T,ECHONET in foreign countries.UPnP was first put forward by Microsoft. Based on it, Universal Plug and Play Forum defined the services and norms of UPnP's equipments in 2000. UPnP protocol is the product of this information society, the related technology of which is the most advanced technology in the present information technology area in the world. It can be certain that in the coming future, UPnP equipments, UPnP AV equipments included, would become extremely popular.The aim of digital home network is to remove the "info isolated island" problem, which is common in the present home network, and to realize seamless connection, resources sharing and cooperative teamwork of various kinds of information and domestic electric devices. This is also the original intention of UPnP protocol. UPnP is the core of Digital Life Net Association (DLNA) protocol sets which is designed for use-friendliness. It is the most appropriate means of connecting into digital home network of equipments, and the public agreement of equipments communicating through digital home network, which is based on the widely-accepted internet protocols and makes it easy for equipments from different merchants to work cooperatively and then to realize the content sharing and calculation "at any time and in any place".UPnP standards contain UPnP foundation agreement, UPnP application framework and UPnP application. UPnP AV application framework is the most important application framework in UPnP protocol platform. UPnP AV application framework plays a critically important role in digital home , thus to find a convenient effective UPnP AV application framework work-out has...