基于可靠性的IMA架构设计方法  

A Reliability Based IMA Architecture Design Method

作　　者：刘宇 金鑫 魏学杭 孙永强 LIU Yu;JIN Xin;WEI Xuehang;SUN Yongqiang(The First Aircraft Institute of AVIC,Xi'an 710000,China)

机构地区：[1]航空工业第一飞机设计研究院,西安710000

出　　处：《电光与控制》2025年第1期86-89,94,共5页Electronics Optics & Control

基　　金：航空科学基金(2020Z009003001)。

摘　　要：综合模块化航空电子(IMA)架构下,系统功能定义已经不同于以往联合式架构中面向任务的专用分布式计算定义,IMA平台上功能应用软件的余度通常代表着系统功能的余度。为了确定机载系统功能的余度,引入应用软件种类、通用处理资源模块、IMA平台机箱、功能应用软件余度4种变量,提出了一种依次设置因变量并反馈调整的任务可靠性设计方法。该方法能够科学地对IMA架构中功能应用软件的余度进行设计,为IMA架构下系统功能余度分析提供了一种新思路。In Integrated Modular Avionics(IMA)architecture,the definition of system functions is different from the definition of task-oriented distributed computing in the previous joint architecture.The redundancy of functional applications on IMA platform usually represents the redundancy of system functions.In order to determine the redundancy of the functions of the airborne system,four variables are introduced,which are the type of application software,the general processing resource module,the IMA platform chassis and the functional application software redundancy.A task reliability evaluation method is proposed,which can set dependent variables and feedback adjustment in turn.It can scientifically design the redundancy of functional application software in IMA architecture system,which provides a new way to analyze the redundancy of system function in IMA architecture.

关 键 词：IMA架构 系统功能余度 余度设计 任务可靠性评估 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]