Study On Network Video Monitoring System Based On FPGA

It is a tendency to use embedded network technology in the monitoring field. The Embedded Network Video Monitoring System is a new technique product that electronics, computer technology, communications technology joining together with automatization technique and developing quickly. Embedded network technology will change the architecture of monitoring system, and it will satisfy the expansibility, distribution, real time in modern monitoring and controlling. It can be extensively applied in telecommunication, traffic, power transportation and bank etc. It is in the premise, this paper design a Network Video Monitoring System base on FPGA. The entire system is made up by remote site (embedded front-end subsystem) and monitoring center (back-end subsystem).This paper mainly discusses the design of the embedded front-end subsystem and realizes. In examining the current popular embedded systems and dedicated MPEG-4 video compression chip, be sure that embedded systems bese on on-chip programmable technology SOPC to build embedded hardware platform whitch rised in recent years, audio and video data compression base on GO7007SB design, use of uClinux operating system to achieve the control of the whole system. The content of the thesis mainly includes the following several respect:①In-depth study on the fronet-end subsystem, its functional breakdown three parts: audio and video capture, compression subsystems and embedded subsystems. Completion of audio and video compression subsystem hardware circuit schematic design and PCB design in protel environment.②With SOPC technology, construction of embedded subsystems in SOPC Builder. Study on I2C bus protocol, using HDL language simulation I2C timing complete audio and video acquisition chip initialization configuration. Analysis GO7007SB standard testing process and complete compression subsystem hardware design testing.③Transplant uClinux operating system and establish procedures development environment. Study the design of driver in Linux environment and analysis of compression subsystem driver functional requirements; design the driver of compresses subsystem.④Propose a simple audio and video coding data packet algorithm.The idea of this algorithm is that makes the send data packets of the same size as far as possible in the network transmission. Designed and implemented client/server network model based on TCP protocol to achieve audio and video encoding data network transmission.Finally, the paper carries on the test of the Video Monitoring System in the paper. Test results show that the proposed system architecture programmes to be effective. The Network Video Monitoring System base on FPGA in scalability, real-time, distributed etc, have a unique advantage, with broad prospects for development.