CAJ | 학술논문

AFDX具有传输速率高、导线长度和重量小、容易映射ARINC429和MIL-STD-1553等优势,且应用商用货架技术和开放式标准,是下一代航空数据网络的最佳选择之一;协议栈是AFDX端系统设计的重点,协议栈的虚链路层包含了AFDX为消除网络的不确定性,对商用以太网进行改进而加入的新功能,是协议栈设计的关键;本文对AFDX协议栈的虚链路层进行了研究,给出了它的一种设计并使用FPGA对其进行实现;在端系统研制中的应用表明,本文的研究实现了虚链路层的功能,并达到了AFDX标准的要求.
AFDX구유전수속솔고、도선장도화중량소、용역영사ARINC429화MIL-STD-1553등우세,차응용상용화가기술화개방식표준,시하일대항공수거망락적최가선택지일;협의잔시AFDX단계통설계적중점,협의잔적허련로층포함료AFDX위소제망락적불학정성,대상용이태망진행개진이가입적신공능,시협의잔설계적관건;본문대AFDX협의잔적허련로층진행료연구,급출료타적일충설계병사용FPGA대기진행실현;재단계통연제중적응용표명,본문적연구실현료허련로층적공능,병체도료AFDX표준적요구.
So many advantages, such as high transmission speed, less wire length and weight, easily map to ARINCA29 and MIL-STD-1553, also application of COTS (Commercial Off-The-Shelf) technology and open standards, make AFDX become one of best choices of next generation aviation data network. Protocol stack is the key point of AFDX end system design. Virtual Link layer, which contains all the new features added to commercial Ethernet to eliminate its uncertainty, is a key of protocol stack design. Study of virtual link layer in AFDX pro-tocol stack is carried out, a design is given, also the implementation based on FPGA is achieved. Application of the design in AFDX end sys-tem development shows that the study achieved virtual link layer's functions and meet the requirements of AFDX standard.