关键词: 关键词: 综合模块化航空电子, 分区, 驻留应用, UML, 资源分配, 两级调度

Abstract: Abstract: Regarding to the resources allocation and partition starting time in the Integrated Modular Avionics (IMA), a Unified Modeling Language (UML) model of partition configuration and initialization was proposed based the case study of VxWorks 653. The model, including classes diagram and initial sequence diagram for partition, is was established to facilitate the analysis of the mechanism of partition configuration and starting/initialization. The partition configuration contents and functionality are were discussed in detail, as well as the differences between “cold start” and “warm start”. A test station was set up, and the tests showed that the time of cold start is 400ms, and warm start time is 259ms. Furthermore, The applicable scenarios of cold start and warm start are were presented, and the policyies of partition configuration and initialization of hosted application within the partition is were proposed based on the starting time, including the manner of partition starting up and time of partition initialization should be fully consider when allocating resources and identifying the health management policy. The resultant policies are applicable to other safety critical partition system design.

Key words: Keywords: IMA, Partition, Hosted Application, UML, Resources Allocation, 2-level Scheduling