Research On Reconfiguration Strategy And Security Testing Method Of Integrated Display System

The reconfiguration strategy of integrated display system,which is based on integrated modular avionics,is different from the "hot standby" reconfiguration strategy of the federated aircraft display system.The integrated display system is more focused on software reconfiguration.Reconfiguration is an important method to improve the fault tolerance of avionics system and the integrated display system represents the significant changes of human-machine interface in the future.Therefore,the research on reconfiguration strategy of integrated display system and security testing of the reconfiguration is of great importance.The reconfiguration strategy of the integrated display system is proposed,on account of the study on the architecture and display logic of the integrated display system.In view of the requirement analysis of reconfiguration security of integrated display system,a reconfiguration test software is developed,and the reconfiguration security of the system is tested by using fault setting method.Besides,the system can be used as a teaching platform which allows students to learn the reconfiguration of intergrated display system.Firstly,the reconfiguration strategy is proposed according to airworthiness documents,AC 25-11 B,CCAR-25-R4,and research on reconfiguration logic of B787 aircraft and domestic aircraft.Secondly,aiming at the method of compressive reconfiguration of integrated display system,the reconfiguration strategy of the primary flight information by the flight phase is proposed.The primary flight information is reconfigured by the weight ratio which calculate by APH weight matrix.Finally,the integrated display system reconfiguration test software is designed with B787 aircraft as template.The security testing of reconfiguration strategy of integrated display system is finished by using fault setting method.Besides,verify the reconstruction strategy is safe,on the basis of the airworthiness documents.