Audio And Video Transmission System Design And Verification Based On Fiber Channel

Avionics communication systems have become increasingly demandingreal-time data transmission, reliability, stability and anti-jamming. The previousgeneration avionics system is widely used by1553B military data bus technology,until now based on the1553B bus avionics data transmission system also plays acertain role, but its1Mbit/s transfer rate, has been not meet modern avionicssystem for high-volume and high-speed data transmission requirements. With thedevelopment of computer technology and embedded microelectronics technology,high-speed storage and high-speed channel technology gradually developed,there are already a variety of Internet high-speed LAN transmission technology,and plays an important role in their respective fields, Fiber Channel technologyincluding the advanced nature of the network communication technology andhigh-speed channel control technology. Fiber Channel layers of protocols arerelatively complex, but combined with its own advantages and specialrequirements of the avionics environment, Fiber Channel-based audio and videotransmission technology is the first choice of a new generation of avionicssystems.Fiber Channel has the advantage of low latency, high bandwidth, high speed,very suitable for large amount of data and real-time transmission of audio andvideo, audio and video transmission of Fiber Channel technology has beenapplied in the avionics system, the domestic transmission technology for FiberChannel’s research started late, need to increase the speed and the power ofresearch. Based on in-depth research and study of Fiber Channel physicalstructure and the transport protocol, design fiber-channel audio and videotransmission protocol interface chip is the emphasis of the study.Firstly, there is a brief introduction of Fiber Channel technology, and thenanalyse its physical structure, transport protocols, network topology and servicetype, and then introduce the most importantly layer: frame protocol layer, then parse the fiber-channel audio and video transmission protocol. The best way usefiber channel to transmit audio and video is containment system, so there have adetailed decomposition of the containment system, then introduce the smallestunit of FC frame of the fiber channel to transmit audio and video data.Introduced a fiber-channel audio and video transmission protocol FPGA boardon this basis, introduce some modules of this FPGA board, the board’s core is thefiber-channel audio and video interface module.Then introduce the dataorganization module, communication control, device control and redundancycontrol and other functions. On the basis of in-depth study of each module, builda virtual model verification platforms and FPGA-based verification platform,verify its hardware and software. Verify the basic functions of each module, andbuild a complete fiber-channel audio and video transmission system, set up asimulate real-world environment, verify its hardware and software, analyzed itsreal-time character, reliability character and stability character. After repeatedverification and modification, the various performance indicators of this systemcorrespond expected demands.