Research And Implementation Of Video Surveillance System Based On Embedded Linux

As everyone knows, the information people get from vision is about 70 percent of the total information they get, visible information is intuitionistic and reliable. In recent years, with the fast development of computer network, communication and multimedia technologies, the investment in network video surveillance field is lager than before all over the world, and video surveillance system is widely used in people's daily life, industrial factory and national security. There are three generations in the development of video surveillance system, the first generation is video surveillance system based on analog signal, the second generation is local video surveillance system based on digital signal, and the trend is digital, network-based and intelligent. Recently, the third generation, network digital video surveillance system, which is based on computer network, can transmit the mass of real time video data, and provide more visible and effective video for the remote manager than the first and second generations.On the basis of summarizing and analyzing others' previous research work, this thesis gives a design and implementation of embedded network video surveillance system by combining embedded, video and network technologies together. Comparing with the system based on PC, the system is reliable, Real-time, cheap in cost, easy in usage and upgrade, and using less power, etc. The system realizes remote video surveillance on Internet Protocol network, the video captured by camera is compressed by the video compress module, then it is transmitted to web server through the data bus, users in client view the video from web server by using browser or relevant tool, and this can be monitored everywhere, without the limitation of distance.The system selects the advanced microprocessor ARM9 S3C2410 as the hardware platform, selects embedded Linux (kernel 2.6.14) as the software platform, and uses open source software to develop applications in server. There are six chapters in the thesis. The first chapter introduces the development and application of video surveillance system, the second chapter introduces the design of embedded network video surveillance system, the third chapter introduces the transplant of embedded Linux OS to the target platform, the fourth chapter introduces the drivers of NIC CS8900A and USB camera, the fifth chapter introduces the implementation of video surveillance application and test of the system, the last chapter gives the summary and prospect of the system.