Research And Realize Digital Home Network Based On UPnP

Digital family in the future will be founded on the network. Its goal is that all the information devices can implement intellectual interconnecting.With the universalization of the digital devices and network, digital family technique is becoming the main-stream of modern digital technique. The appearance of home middlemiddleware which has shielded the difference of hardware, OS and basic communications makes the intelligence devices easier to operate and easier to enter home network. In the technologies of middleware, the UPnP is one of the most up-and-coming the modern digital family technique. UPnP which is the abbreviation of Universal Plug and Play becomes the hot spot of research and gets sweeping supporting. It is mostly used for implementing intellectual interconneceing devices. Using UPnP protocols does not need device driving programs, so the network building based on UPnP is independent of hard medium. It can run on almost all operating systems. Also, it can be realized with kinds of programing languages such as C, C++ and JAVA. UPnP will make it easy to build the network environment for devices interconnecting in office or home.Firstly, this paper emphasizs on the basic principle and realization of UPnP based on the Intel UPnP SDK, designs and implements the universal UPnP device and control point on which the paper also realizes two simulated intelligent device, namely, intelligent light and intelligent CDPlayer based.Secondly, because of many devices existing in home network, it is difficult and boring to administrate all of these devices, so one of an important roles of home gateway is to handle out this problem. The home gateway first will gather the devices information, create a description array for each device and build the controlling web interface based on its template device and description arrays.To solve the cooperation of the devices using different protocols, this paper has designed an UPnP-Bluetooth software bridge to solve this problem, which can realize the UPnP device and Bluetooth device communication. Meanwhile, in order to implement the convenience of users' operation and the security of home network, the home gateway has been devised and realized. In the end, the whole simulated digital family has been tested .