Research Of UPNP Device Control Technology Based On Embedded Linux

With the great development of computer industry and computer network technology, embedded system and the home networking communication is becoming a popular research field now. With the development of home networking, and the more embedded devices in use, it is urgent to explore a new way to connect all kind of embedded devices in the home networking. UPnP (Universal Plug and Play) Protocol was put forward by Microsoft to provide the capacity of interconnection across various intellectual equipments existing extensively in the family network. To overcome the problem of the controlling UPnP device, this article systemic study on the UPnP equipment finding and controlling mechanism and UPnP control point development, and so on.As the standard of object oriented modeling technique, UML is suitable for making the design of complex system simplify. Through the research of the current technology of UML, combining with the existing problems in the design of embedded software, this thesis presents a solution based on UML to develop the embedded system, and applies it to a UPnP control point program that based on embedded Linux system.At first, the operational principle of UPnP Protocol is analyzed in-depth. Secondly, the thesis introduces some basic knowledge about UML, and then analyses the main thought and process of software modeling based on UML. Simultaneously, according to every phase of UML modeling process, the thesis gives the whole process of how to use UML to design this UPnP control point. On the foundation of UML model of UPnP control point, the framework of writing a UPnP control point is built finally which has great reference value in developing other similar UPnP control point. In the end, through utilizing the advantage of the open UPnP source library based on Linux, design and realize a UPnP control point program that based on embedded Linux. On the foundation of the support of UPnP Protocol for the embedded Linux platform, it's the key point of solution validated in this paper.