计算机技术与发展
計算機技術與髮展
계산궤기술여발전
COMPUTER TECHNOLOGY AND DEVELOPMENT
2014年
5期
120-124
,共5页
三余度%交叉通道数据链路%可靠性%FPGA
三餘度%交扠通道數據鏈路%可靠性%FPGA
삼여도%교차통도수거련로%가고성%FPGA
treble-redundaney%cross channel data link%reliability%FPGA
多余度技术能够满足飞机管理系统中高安全性、确定性和可靠性的需求，而交叉通道数据链路( CCDL)是余度计算机之间进行数据和信息交换的重要途径，是保证余度飞机管理计算机正常运转的关键部件。文中基于三余度飞机管理计算机系统需求，给出CCDL硬件逻辑设计的体系架构，对CCDL的关键点进行分析，设计了一种在1394总线上进行点对点可靠传输、防止故障蔓延的交叉通道数据链路，并进行了FPGA实现和验证。实验结果表明，该设计能够高效可靠地满足系统的应用要求。
多餘度技術能夠滿足飛機管理繫統中高安全性、確定性和可靠性的需求，而交扠通道數據鏈路( CCDL)是餘度計算機之間進行數據和信息交換的重要途徑，是保證餘度飛機管理計算機正常運轉的關鍵部件。文中基于三餘度飛機管理計算機繫統需求，給齣CCDL硬件邏輯設計的體繫架構，對CCDL的關鍵點進行分析，設計瞭一種在1394總線上進行點對點可靠傳輸、防止故障蔓延的交扠通道數據鏈路，併進行瞭FPGA實現和驗證。實驗結果錶明，該設計能夠高效可靠地滿足繫統的應用要求。
다여도기술능구만족비궤관리계통중고안전성、학정성화가고성적수구，이교차통도수거련로( CCDL)시여도계산궤지간진행수거화신식교환적중요도경，시보증여도비궤관리계산궤정상운전적관건부건。문중기우삼여도비궤관리계산궤계통수구，급출CCDL경건라집설계적체계가구，대CCDL적관건점진행분석，설계료일충재1394총선상진행점대점가고전수、방지고장만연적교차통도수거련로，병진행료FPGA실현화험증。실험결과표명，해설계능구고효가고지만족계통적응용요구。
The vehicle management system requires the highest security,ascertainment and reliability in future,and the redundancy tech-nique can satisfy the system's requirement. But the Cross Channel Data Link ( CCDL) is important for data and information exchange a-mong redundancy computers. Also it is a key component to guarantee the redundancy vehicle management computer's normal operation. Based on the system's performance demands of treble-redundancy plane management,the structure of the CCDL hardware logic design is given. Then the key functions of the CCDL are analyzed and designed. An cross channel data link which transmits reliably by point to point and prevents from fault spread on the 1394 bus is designed,and the CCDL is realized and validated on FPGA. The experiment re-sults indicate that the CCDL design can fulfill the system application requests with the high efficiency and reliability.
