摘要
为提高民机分布式综合模块化航空电子(distributed integrated modular avionics,DIMA)系统应对飞行任务切换和资源失效的能力,分析了DIMA动态重构环境及动态重构机制,形成了面向任务的动态重构策略。首先,提出“任务-功能-资源”间的关系矩阵及动态重构有效性评价体系。然后,引入组合优化赋权法计算不同任务模式下功能应用的优先级权重。最后,用实例分析对比了面向任务的动态重构策略与普通重构策略在不同任务模式下系统资源对系统功能完整性的支撑程度。研究结果表明,随着模块故障数量的增多,面向任务的动态重构策略可以显著提高动态重构的有效性。
In order to improve the ability of civil aircraft distributed integrated modular avionics(DIMA)system to cope with mission switching and resource failure,the dynamic reconfiguration environment and mechanism of DIMA are analyzed.And the task oriented dynamic reconfiguration strategy is proposed.Firstly,the relationship matrix of“task-function-resource”and the effectiveness evaluation system of dynamic reconfiguration are proposed.Then,the combined optimization weight method is introduced to calculate the priority weight of function application in different task modes.Finally,an example is used to analyze and compare the support degree of system resources to system functional integrity between task oriented dynamic reconfiguration strategy and common reconfiguration strategy under different task modes.The research results show that the task oriented dynamic reconfiguration strategy can significantly improve the effectiveness of dynamic reconfiguration with the increasing number of module failures.
作者
王鹏
刘嘉琛
董磊
赵长啸
WANG Peng;LIU Jiachen;DOND Lei;ZHAO Changxiao(Key Laboratory of Civil Aircraft Airworthiness Technology,Civil Aviation University of China,Tianjin 300300,China;Civil Aircraft Airworthiness and Repair Key Laboratory of Tianjin,Tianjin 300300,China;College of Sa fety Science and Engineering,Civil Aviation University of China,Tianjin 300300,China)
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2021年第6期1618-1627,共10页
Systems Engineering and Electronics
基金
国家自然科学基金-民航联合基金(U1933106)
航空科学基金(20185167017)
中央高校基本科研业务费(3122019167)
天津市教科委科研计划项目(2019KJ134)资助课题。
关键词
航空电子系统
分布式综合模块化航空电子
动态重构
组合赋权
有效性
avionics system
distributed integrated modular avionics(DIMA)
dynamic reconfiguration
combination weighting
effectiveness
