Architecture Design About Fault-tolerant Flight Control Computer And Construction Of Virtualization Validation Platform

Flight control computer is the core component of the plane.This paper proposed a flight control computer architecture scheme with high reliability and designed a virtualized verification platform,which could verify and analyze the architecture scheme at the beginning of the design.First of all,this thesis used mathematical modeling method and theoretical derivation method to confirm the number of redundancy of flight control computer,based on the requirement of high reliability.it also completed the design of system redundancy and management method,the cross data transmission method and the synchronous method.Then,the virtual computer system was modeled by the whole system simulator,according to the architecture design scheme.while modelling,the system would use the accelerator,which provide the parallel and multi-thread modelling method to increase the real-time of the flight control computer model,in order to keep the same running speed with the physical system.Secondly,on the basis of the virtual flight control computer,the fault injection module was added,according to the failure mode of each function unit.A fault injection and analysis software was complete by QT.the communication between the virtual computer system and A fault injection and analysis software realized by the network.Finally,the virtualized verification platform was completed by the combination of virtual flight control computer and analysis software.the virtualized verification platform finished the function verification of all the function model,it also finished the analysis of the system reliability and the importance degree of all the model by fault injection method.this paper analyzed the flight control computer from the qualitative and quantitative aspects.The virtualized verification platform provides a new method for reliability analysis in the process of flight control computer design.it could not only analyze the system,but also give the feedback to the designer,it also help to avoid pay a heavy price for the design error in the traditional development process.It is truly an effective tool in the development process.