基于资源动态配置的IMA任务调度机制研究

摘要

航空电子系统对于任务执行的实时性有很高的要求。本文通过对综合模块化航空电子(IMA)下的航电任务进行分析，提出了一种基于资源动态配置的任务调度方案，包括资源管理、任务管理以及任务调度等。通过利用随机Petri网对该调度方案的时间性能进行分析，验证了此调度方案可以缩短航电任务的平均执行时间，提高航电系统的效率。%High real-time performance is the most important requirement of avionic system. With the analysis of avionics tasks in an Integrated Module Avionic (IMA) system, this article proposed a task scheduling scheme based on dynamic resource allocation, which includes resource management, task management and task scheduling. According to scheme behavior analysis using Stochastic Petri-Net, it verified that this scheduling scheme can enhance the efficiency of avionics system by shortening the average execution time of avionics tasks.