Embedded Gigabit Network Image Transmission System Design

With the rapid development of modern image signal processing technology, the high-speed image transmission has been an indispensable part in the whole image signal processing system.The high-speed image transmission is always one of the emphasis and hotspots in domestic and foreign relevant areas.Embedded and network-based, is also the development trend of image transmission system. With its specificity, the embedded system can satisfy the specific needs of image collection system design and implementation, and make the system structure more compact, and also can reduce the system power consumption.At present, many image transmission systems, real-time video monitoring system in both the specific applications and the scientific research have the characteristics of non-compression, large amount of data. The paper designs a hardware-based network protocol stack high-speed image transmission embedded system solution based on Gigabit Ethernet interface. With the use of FPGA embedded technology, we put the image data acquisition, transmission and processing as a whole. The system realizes the hardware-based protocol stack, improves the data transmission bandwidth, reaches the high-speed and high-frame image transmission needs. After a long time of validation test, the system can achieve the rate of260Mbps to send data, meet the design requirement, which lays a solid foundation for later image correlation processing.High-speed transmission of large amounts of data is the core of the entire image transmission system. It is our focus on solving the problems of high-speed data transmission. We have developed a complete embedded high-speed image transmission system solution, which rely on FPGA in logic development as well as the existing gigabit Ethernet technology, to realize the image data high-speed transmission. According to various factors such as the ease of system development, demand, development cycle, chip resources, we have chosen appropriate peripheral chips to complete the peripheral circuit design. We use Verilog HDL on FPGA logic design, including the implementation of network card controller, UDP/IP stack hardware implementation.