Design And Implementation Of ICD Monitoring Software Based On The Airborne Data Bus

The airborne data bus as the core technology of the modern aircraft telex operatingsystems and avionics integration, it’s a measurement of integration about avionics systemsand determine the performance of the aircraft. All the subsystems are cascaded together, andthen a particularity distributed computer network can be constituted, which can realize thedata communication, resource sharing and integrated function between the various sensorsand executive function unit in the telex operating system.Without advanced airborne data bus, there will be no advanced avionics; withoutadvanced avionics, there will be no advanced aircraft. Therefore, the airborne data bustechnology has got a rapid development recently. Airborne data bus monitoring as part of theavionics simulation get a depth study,which can realize real-time and reliable monitoring datatransmission on the bus, precise positioning the failure of the avionics system to avoidtrouble-free disassembly of equipment, and can improve maintenance efficiency in theprocess of development, production and maintenance of integrated avionics system.In thisthesis,according to the above requirements, a particular model of aircraft bus monitoringsystem are designed and implemented, which can provide reliable and useful information fortesting personnel in fault localization and post-mortem analysis.In this thesis we firstly investigate the classification of the airborne data bus and theprotocol specification, data structures and communication mechanism of three commonlyused airborne data bus. Secondly, we discuss bus monitoring of the system status andcomposition based on the Interface Control Document (ICD). Thirdly,we design a generalICD database management system, and based on this software, different airborne data businterface definition can be unified together to provide a reference standard. Finally, byinformation exchange between the ICD management software and other software, real-timeaccurate monitoring, parsing and analysis of data on the bus can be achieved. The softwaredevelopment platform is Microsoft Visual Studio2008，the software using C++language forthe designation, three bus monitoring software based on the dialog programming techniquesare designed, and each software functional module includes new project module,computer card collocation module, data analysis module, data analysis module and data storage module.The tests show that the software is capable of real-time and accurate analysis of theinformation transmitted on the bus, have strong anti-interference, scalability, and have broadapplication prospects.