Multi-channel Hd-sdi High-definition Video Multiplexing And Transmission System Design,

With the constant development of Video technology and optical transmission technology, human civilization has evolved into the High-Definition times and is positively getting ready for the Full-High-Definition era. It is important for this evolvement to implement efficient transmission of high-definition video in which multiplexing and fiber optic transmission technology is the key technology. A multiplexing transmission scheme that multi-HD_SDI is transmitted through a single fiber is introduced after analyzing the current technical conditions and development trends.First of all, based on the development and changes of the video Optical analysis, the video multiplexing transmission technology in the future development needs are analyzed and the non-compressed high-definition video multiplexing and transmission technology research value is demonstrated. And HD-SDI Video Transmission on the current development and technology are also introduced.Then, some key technologies is introduced including optical transceiver modules, high-speed transceiver modules, FPGA chip performance which influence and restrict the development of high-definition video multiplexing and transmission, as well as the related relations and development agreements. Moreover the development and progress of these technologies on the importance of the field of video transmission and how to use the relevant technologies and products better in video transmission in are analyzed.Again the main modules that should be included in the HD-SDI Multiplexer and transmission system design and their corresponding roles are discussed; meanwhile the frame icon is given. then several implement schemes and techniques are analyzed and compared, and some views on reasonable choice and arranging them into groups are put forward.Finally, a multiplexing and de-multiplexing scheme is brought out which takes the high performance FPGA and optical transceiver module as the core, the dynamic allocation and reuse of resources as the main features. Details about the program to receive HD-SDI signal and send, a novel design method of asynchronous FIFO, using barrel shift manner BIT design conversion, multiplexing reconciliation Reuse way to achieve synchronization, and channel dynamics distribution and transmission method with priority implementation, etc., and need to be on the program to continue to improve and develop the analysis of issues.At the end of the paper, the valuable additional function and possible trend of the multiplexing transmission equipment is discussed for uncompressed high definition video.