IMA system comprehensive fault management system based on ASAAC system

Abstract

The invention discloses an IMA system comprehensive fault management system based on an ASAAC system, and the system comprises a three-level combined comprehensive fault management structure which comprises a resource level, a comprehensive region level and a system level. Each comprehensive fault management subsystem comprises a health monitoring subfunction module, a fault diagnosis subfunctionmodule, a fault prediction subfunction module and a fault processing subfunction module, wherein the internal subfunction modules of all levels are connected through a lateral data flow, thereby achieving a local-level comprehensive fault management function. A fault which cannot be processed by a local subsystem is uploaded to a module at an upper level. Meanwhile, the subfunction modules at theupper level receive the input of the subfunction modules at the lower level through a longitudinal data flow. The system solves problems that a conventional system is short of a fault prediction function and is not sufficient in processing measures for existing faults and timely recovery and an existing fault management level structure dividing mode does not accord with an ASAAC standard system architecture. The system is complete in function, and the functions comprise the beforehand preventing and postprocessing recovery. The system can improve the reliability, safety, maintainability, guarantee performance and economic affordability.

Description

technical field [0001] The present invention relates to the technical field of comprehensive fault management in integrated modular avionics (IMA) systems. Specifically, it relates to a comprehensive fault management method, structure, logical relationship and implementation in an integrated modular avionics system. Background technique [0002] The integrated modular avionics system is an important direction for the development of the avionics system of large passenger aircraft. Through the integrated technology of avionics system, the effectiveness and economy of the functional system of large passenger aircraft can be effectively improved. Fault management is an important part of the avionics system, responsible for fault detection, prediction, identification, isolation, recovery and other functions, and is the key to achieving the expected goal of avionics system integration and ensuring aircraft safety, support, and economic affordability . [0003] At present, the r...

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Problems solved by technology

[0008] Aiming at the lack of fault prediction function in the ASAAC standard fault management strategy, the PHM technology of avionics system does not pay enough attention to the timely recovery and processing of the faults that have occurred, and the existing avionics PHM structure and the hierarchical structure of the IMA system management of the ASAAC standard For the problem of inconsistent division methods, the present invention proposes an IMA system fault management system based on the general system management function in the extended ASAAC system, which not only conforms to the ASAAC architecture, but also involves comprehensive fault management functions

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