FC-AE-1553協(xié)議的星型光耦合拓撲支持研究
發(fā)布時間:2018-04-13 05:06
本文選題:FC-AE-1553 + 光纖通道; 參考:《電子科技大學》2015年碩士論文
【摘要】:針對航電系統(tǒng)開始采用模塊化、綜合化、開放式系統(tǒng)結構的設計趨勢,對網(wǎng)絡帶寬,時延性,擴展性,功耗,以及成本等指標提出了越來越高的要求,尤其是對低成本、低功耗的航電網(wǎng)絡技術的需求也越來越迫切;诠饫w通道技術的FCAE-1553協(xié)議網(wǎng)絡,由于其高帶寬,低延遲,以及良好的擴展性使其逐漸被應用于當代的航電網(wǎng)絡領域中。但交換式FC-AE-1553網(wǎng)絡的高功耗、高成本等缺點也帶來了很大的局限性,特別是對于功耗極度敏感的航天系統(tǒng),其缺陷更加明顯。本論文在深入分析了FC-AE-1553協(xié)議的相關技術特點后,針對低成本、低功耗、組網(wǎng)靈活的星型光耦合拓撲進行了FC-AE-1553的擴展支持研究。主要內(nèi)容為:1.設計了一種FC-AE-1553協(xié)議在星型光耦合拓撲下的擴展支持方式,并對該拓撲網(wǎng)絡下的FC-AE-1553協(xié)議棧進行了相應的兼容性擴展設計,主要包括鏈路傳輸?shù)脑O計,鏈路同步與端口的注冊登錄,交換傳輸方式的設計,網(wǎng)絡控制算法的改進,終端故障的檢測,以及節(jié)能設計等。2.針對星型光耦合拓撲結構下擴展FC-AE-1553網(wǎng)絡的性能表現(xiàn),通過MATLAB工具對不同拓撲下的網(wǎng)絡組網(wǎng)進行了建模和仿真,并分析了不同拓撲網(wǎng)絡的組網(wǎng)成本、節(jié)點可擴展性、任務可靠性、網(wǎng)絡時延性、以及網(wǎng)絡功耗。通過與三種標準拓撲進行了優(yōu)劣對比分析,結果表明該星型網(wǎng)絡拓撲下的擴展FC-AE-1553協(xié)議網(wǎng)絡具有低功耗,低成本的顯著優(yōu)點。3.研究了星型光耦合拓撲結構下擴展FC-AE-1553協(xié)議的網(wǎng)絡節(jié)點硬件實現(xiàn)方法,本文使用FPGA來實現(xiàn)了擴展FC-AE-1553協(xié)議棧的邏輯電路設計,并提供了存儲器地址的讀寫定義作為上層系統(tǒng)的調(diào)用控制接口。最后通過在星型光耦合拓撲網(wǎng)絡下的多節(jié)點組網(wǎng)進行了相應的傳輸功能測試,結果表明該節(jié)點硬件實現(xiàn)方案能有效支持星型光耦合拓撲結構。
[Abstract]:Aiming at the trend of modularization, integration and open architecture of avionics system, the network bandwidth, delay, expansibility, power consumption and cost are required more and more, especially for low cost.The demand of low power avionics network technology is more and more urgent.Because of its high bandwidth, low delay and good expansibility, FCAE-1553 protocol network based on fiber channel technology has been gradually applied in the field of avionics network.However, the shortcomings of switched FC-AE-1553 networks, such as high power consumption and high cost, also bring great limitations, especially for space systems with extremely sensitive power consumption.In this paper, the characteristics of FC-AE-1553 protocol are analyzed in depth, and the extended support of FC-AE-1553 is studied for the low cost, low power consumption and flexible star optical coupling topology.The main content is: 1.In this paper, we design an extension support mode of FC-AE-1553 protocol in star optical coupling topology, and design the compatibility extension of FC-AE-1553 protocol stack in this topology network, including the design of link transmission, link synchronization and port registration, and the corresponding compatibility extension design of the FC-AE-1553 protocol stack under the topology network, including the design of link transmission, the registration and login of link synchronization and port.Switch transmission mode design, network control algorithm improvement, terminal fault detection, and energy saving design. 2. 2.Aiming at the performance of extended FC-AE-1553 network under star-optic coupling topology, the network construction under different topologies is modeled and simulated by MATLAB tool, and the network cost, node extensibility and task reliability of different topology networks are analyzed.Network delay, and network power consumption.By comparing with the three standard topologies, the results show that the extended FC-AE-1553 protocol network under the star network topology has the advantages of low power consumption and low cost.In this paper, the hardware implementation method of extended FC-AE-1553 protocol based on star optical coupling topology is studied. In this paper, the logic circuit design of extended FC-AE-1553 protocol stack is implemented by using FPGA.And provides the memory address read and write definition as the upper system call control interface.Finally, the transmission function of the multi-node network under the star optical coupling topology network is tested. The results show that the node hardware implementation scheme can effectively support the star optical coupling topology.
【學位授予單位】:電子科技大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:V243
【參考文獻】
相關期刊論文 前4條
1 劉桂山,胡軍程;1553B總線信息流設計[J];北京理工大學學報;2003年03期
2 姜震,熊華鋼,邵定蓉;未來航空電子高速數(shù)據(jù)總線技術的研究[J];電光與控制;2002年03期
3 丁凡;宋麗茹;熊華鋼;;FC-AE-ASM網(wǎng)絡數(shù)據(jù)發(fā)送控制算法研究[J];電子與信息學報;2009年06期
4 徐亞軍;張曉林;郭蔡健;熊華鋼;;FC網(wǎng)絡性能測試與研究[J];計算機工程與應用;2007年15期
,本文編號:1743035
本文鏈接:http://sikaile.net/kejilunwen/hangkongsky/1743035.html