The Software Design For Analog Signal Sources In Fiight Test System

Flight test system is designed to collect a variety of information on the process state information and data systems airplane flight, the system include on-board test systems, external measurement systems, telemetry transmission systems, data processing and management systems, ground support systems and other sub-systems. Flight test system capability is a measure of a country’s technological level flight test an important symbol, so research test flight of China’s aviation system will be of great significance.Airborne flight test system as a subsystem test system to verify that the system is determined by the aircraft airborne ground verification test system platform to complete. Ground control verification platform is controlled by a unified comprehensive test management system, the analog signal source system was studied in this paper flight verification system is a subsystem in an integrated test management system scheduling and control, analog signal generating demand for machine input load test system to provide incentives, in order to verify the airborne test system performance characteristics.The main research object analog signal source control software system. This paper introduces the current development status and flight test system based on Ethernet technology development trend, then the overall flight test analog signal source systems analyzed reports, including the composition of the cabinet structure and ground verification platform for analog sources and chassis, of which focuses on the architecture of choice for source hardware level. Then study the signal source software, overall design, which focuses on the needs and the overall structure of the three-tier software, software, software, information exchange flow between the layers, the test process design and software development environment. Then each model type analysis illustrates how the board is controlled by the software to generate a signal. Next to the source control software functionality and interface has been the focus of research and design, in a clear demand, the control software for the module division, and a careful analysis of the function of each module and use the principles and techniques, but also to give the realization of each module of the program flow. Finally, analysis of the control of the software development process, the key technology needs and how to use these technologies, including calling the dynamic link library, as well as multi-threaded applications secondary development of technology-driven functions in the control software.