Research On Modeling And Simulation Of Flight Display Alerting System Based On Matlab

Flight display alerting system is the key system for the aircraft cockpit crew to understand the state of the aircraft system and the system's abnormal situations.The design of this system is always being a popular focusing target by the design infrastructure of civil aircrafts.Because of its complex internal logic and huge data link with other aircraft systems,the difficulty of its design and verification is increased.Towards this problem,this thesis carried out the research on the modeling and simulation of the flight display alerting system.In the modeling and simulation process of aircraft flight display alerting system,the researchers faced obstacles how to efficiently assign values for the vast number of input signals of systems,and how to unified test a series of similar models.Based on MATLAB software and its Simulink tool,this thesis propose a set of modeling method,including the method of time series which is adopted for batch assignment of input variables,and the method of model reference which is adopted for effectively building models.After analyzing the requirement for simulation of the system,the paper presents a solution by set up a simulation platform and a model debugging and running platform to integrate simulate the flight display and alerting system.In the design of the simulation platform,the model input variable environment,the unified modeling framework of the system and the storing of the simulation results are thoroughly discussed.The simulation platform is developed by Simulink,which has closely data relationship with the model debugging and running platform.In the design of model debugging and running platform,it mainly considers the configuration of the simulation environment,the assignment of input variables,the processing and analysis of the simulation results.Model debugging and running platform is based on the MATALB GUI user interface tool,which greatly enhanced the effectiveness and efficient of analyzing the simulation results.The simulation platform includes the establishment of model and the establishment of simple logic model and complex logic model and model reusing,and the simulation platform has also regulated the input variable allocation method.The function of model debugging and running platform is realized by the graphic user interface component and the background code.The functions of the model debugging and running platform include the reading and loading of the model configuration file and the input variable test case file,model input value checking and editing,model version control and operation management,also include model result illustration.This paper has carried on the test and verification of the whole simulation platform.The core simulation method of the simulation platform is tested using the method of comparison experiments.The results of the test suggest that the simulation method is correct and effective,and some valuable conclusions are also obtained from the test results.The test and verification of the model debugging and running platform are carried out using the method of block verification.The main aspects include the correctness of the function and the reliability and the stability of the program.The results show that the platform can satisfy the function of the design,and can achieve good cooperation with the simulation platform,improve the working efficiency of the simulation.The whole set of simulation methods and tools were fully tested and verified.It can be said,the methods and tools of simulation of this project can meet the project requirements,and the simulation method is worthy of promotion and reference in the future projects.This paper completes the whole process of requirement analysis,design and implementation,testing and verification of the flight display alerting system modeling and simulation platform.More than meet the needs of modeling and simulation,the whole platform has a high reference value for the system and other modeling and simulation.