The Research And Implement Of DVS Based On PowerPC

Video surveillance system is widely used because its convenience and enrich information. The former analog system has many disadvantages such as lack of ability for large network access and long distance translation. With the development of network technology, embedded technology and video technology, it has been possible to transport and control digital video data on networking real time. Embedded video surveillance system is a new digital video surveillance system based on embedded system technology, video technology and real time network transport technology. Compared to the old video surveillance system, it has many advantages, such as stability, real time performance, functions and price etc. It is also the direction of research and development in video surveillance system.In this thesis, the video surveillance system used for expressway based on embedded system is deeply studied. And then design and implementation the advanced equipment based on the microprocessor MPC8245 and embedded Linux operating system.The thesis describes the whole design scheme and main functions of the system, and discusses details on the building process of the developing environment, based on the embedded Linux operating system, including the configuration of development tools, kernel considerations, root file system setup and bootloader setting up。Based on this system flat, the design and implementations of device driver of the video CODEC chip by the name of VW2010 are analyzed detailed. The end of this thesis implements video surveillance system by the design of the network communication module, including the C/S and the B/S mode of the system, according to the system requirement under the Linux OS.