面向IMA平台动态重构的应用状态管理设计  

Design of Application State Management for IMA Dynamic Reconfiguration

作　　者：张峰[1] 吴姣[1] 段海军 ZHANG Feng;WU Jiao;DUAN Hai-jun(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China;Yangzhou Collaborative Innovation Research Institute Co.,Ltd.,Yangzhou 225000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000 [2]沈阳飞机设计研究所扬州协同创新研究院有限公司,江苏扬州225000

出　　处：《航空计算技术》2023年第6期110-114,共5页Aeronautical Computing Technique

基　　金：国家重点研发计划项目资助(2017YFB13001104)。

摘　　要：IMA平台的应用层动态重构技术,允许平台以最小的余量设计保证功能增长,大幅度提高了平台的灵活性,同时也使得系统的分区管理复杂,资源重构困难。针对IMA平台动态重构时,应用任务状态出现断层不连续的问题,提出了一种分区应用状态管理方法设计,以避免应用功能因此而失效。设计提出在周期任务中预设应用状态提取断点,采用异地存储的设计,在断点处将任务状态数据异地备份;应用重构后,取回任务状态数据,将应用任务状态恢复到状态迁移前的状态。设计易于实现,提高了航空电子系统应用动态重构的可靠性。The application layer dynamic reconstruction technology of the IMA platform allows the platform to design with minimal margin to ensure functional growth,greatly improving the platformh′s flexibility,while also making system partition management complex and resource reconstruction difficult.A method of application state management is proposed in this paper,designing to address the issue of discontinuous application tasks states during dynamic reconfiguration of the IMA platform,in order to avoid the failure of application functions as a result.Presetting application state extraction breakpoints in periodic tasks is proposed,adopting a design of remote storage,backup tasks status data remotely at breakpoints;To restore the application tasks state to the state before application refactoring,the method is applied to fetch the tasks state data.This design is easy to implement and improves the reliability of dynamic reconfiguration in avionics system applications.

关 键 词：IMA 动态重构 状态提取 状态恢复 异地存储 

分 类 号：V243[航空宇航科学与技术—飞行器设计]