Research On Test Environment Of Integrated Modular Avionics Software

With the development of the aviation industry,whether it is from the hardware level of mechanical and electrical equipment or from the software level of airborne software or avionics systems,have a leap forward development.Integrated modular avionics system(IMA)is a new generation of avionics system.Airborne software plays a more and more important role in avionics system.The obvious difference from ordinary commercial software is that the airborne software must have high reliability,and software testing is an important way to ensure the quality and reliability of airborne software.At present,the research of integrated modular avionics system starts late in our country,and the testing of integrated avionics software is still in the initial stage.And the test level of the integrated modular avionics software abroad is still a test module or system level.The method is tested on airborne software from the perspective of the system,without considering the potential problems crosslinking relationship between system configuration and individual configuration items.It can not fully exposed to potential problems in the engineering application.Therefore,it is an urgent problem to solve the problem of how to put forward an effective test environment for independent software configuration items in integrated avionics software.Considering the characteristics of the software of integrated avionics system,this paper firstly summarizes the new demands of the integrated avionics software testing.According to the characteristics of inter partition communication,simplify the test environment test level of the existing system,put forward the concept of 'IMA virtual partition'.Then,based on this concept,designed a construction method for integrated navigation software testing environment.It is able to make the test personnel to test the IMA software in the level of configuration effectively.So as to make up for the current can only at the module level or system level test limitations.Finally,the method of building the prototype in the testing environment on the basis of constructing the test environment a set of integrated avionics software.And a certain type of airborne Lapel slat control system software as measured,for the analysis of experimental cases.The measured data to correct the measured excitation,observation output data.Through the analysis and comparison of the experimental data and the real system test results,verify the correctness of the integrated avionics software testing environment construction method.