Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (6): 1618-1627.doi: 10.12305/j.issn.1001-506X.2021.06.19

• Systems Engineering • Previous Articles     Next Articles

Task oriented DIMA dynamic reconfiguration strategy for civil aircraft

Peng WANG1,2,3, Jiachen LIU2,3, Lei DOND1,2,3,*, Changxiao ZHAO1,2,3   

  1. 1. Key Laboratory of Civil Aircraft Airworthiness Technology, Civil Aviation University of China, Tianjin 300300, China
    2. Civil Aircraft Airworthiness and Repair Key Laboratory of Tianjin, Tianjin 300300, China
    3. College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China
  • Received:2020-09-08 Online:2021-05-21 Published:2021-05-28
  • Contact: Lei DOND

Abstract:

In order to improve the ability of civil aircraft distributed integrated modular avionics (DIMA) system to cope with mission switching and resource failure, the dynamic reconfiguration environment and mechanism of DIMA are analyzed. And the task oriented dynamic reconfiguration strategy is proposed. Firstly, the relationship matrix of "task-function-resource" and the effectiveness evaluation system of dynamic reconfiguration are proposed. Then, the combined optimization weight method is introduced to calculate the priority weight of function application in different task modes. Finally, an example is used to analyze and compare the support degree of system resources to system functional integrity between task oriented dynamic reconfiguration strategy and common reconfiguration strategy under different task modes. The research results show that the task oriented dynamic reconfiguration strategy can significantly improve the effectiveness of dynamic reconfiguration with the increasing number of module failures.

Key words: avionics system, distributed integrated modular avionics (DIMA), dynamic reconfiguration, combination weighting, effectiveness

CLC Number: 

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