Design And Implementation Of The Government (police) Department Network Video Surveillance System

In the early 21st century, the embedded network video supervision system continuously deveolps to obtain a huge progress thus because of the related technical, such as multi-media ICON techniques of handling, embedded technique etc.The application of the embedded system for the center, can have free cutting software and hardware, with lower cost and higher comprehensive and reliability of strong special computer system.In recent years, video monitoring system has been in production management, anti-theft security fields been widely used. As the network technology, image compression techniques and embedded technology developed quickly, the video supervises and controls system evolves to be network, digitize and miniaturization , the embedded network video supervision system has already become the hot research spot of the supervisory control system.According to the present development situation and hot spot of the current video monitoring system , combining embedded systems, network data transmission technology, digital image compression technique, this paper will focus on embedded network video monitoring system Linux research, proposing a design scheme based on embedded network video monitoring system of Linux.Based on embedded video monitoring system design to complete the system of the overall program scheme of complete hardware selection, demand of integrated systems of hardware and software development platform hierarchical structure, completed the video image acquisition program design.Embedded Linux operating system of transplantation is the key, this thesis first mainly completes the transplantation of Bootloader, of which mainly analyses the operation process and VIVI against the use of this system NAND Flash partition modification and make relevant start-up code revision. Then complete Linux kernel transplantation, Linux kernel transplantation is development board can start from NAND Falsh basic Settings. Finally finish Linux root filesystem production.