Optimized Design of Resource Sharing and Isolation for Integrated Modular Avionics

Through resource sharing, Integrated Modular Avionics (IMA) improves efficiency and reduces aircraft system weight, but it also brings coupling and transmission of failures. How to balance safety and efficiency becomes the basic problem of IMA resource allocation. Aim at this problem, we study the isolation and sharing design of IMA platform resources, and propose a design method of resource allocation optimization. We consider both safety and efficiency constraints to provide a safe and efficient resource allocation scheme for IMA. The safety constraints are based on the system safety requirement. The verification of efficiency constraint is performed under the premise of satisfying the safety constraint. After introducing the above method, based on the actual project, we design a graphical tool to demonstrate how to allocate aircraft display control system (partly) on the IMA which illustrate the specific application and feasibility of the method.