基于ARINC659总线的软件同步算法  

A Software Synchronization Algorithm Based on ARINC659

作　　者：刘意 万隆 刘逸涵 

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710068

出　　处：《航空计算技术》2017年第6期119-121,共3页Aeronautical Computing Technique

基　　金：国家核高基重大专项项目资助(2012ZX01041-002-003);航空科学基金项目资助(2013ZC31005;20141931001)

摘　　要：同步是机载计算机实现余度管理的必要条件。依据ARINC659总线的硬件同步机制,提出机载余度计算机软件同步算法。利用周期性659中断和小帧计数,实现初始同步和周期同步。实验于某前置ART计算机,结果表明:算法具有良好的可靠性和正确性,且可扩展性强。Synchronization is the necessary condition of redundancy management to airborne computer. According to hardware synchronization mechanism of ARINC659 bus, the paper proposes a software synchronization algorithm of redundancy airborne computer. Which realize initial synchronization and periodic synchronization by periodic 659 interrupt and small frame counters. The algorithm used on a preposition ART computer, demonstrating its good reliability and correctness, and its scalability.

关 键 词：机载计算机 余度 同步 ARINC659总线 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]