Research On 1553B Simulation Test Technology Base On ICD

1553B bus with high reliability and real-time,since its inception,has been favored by the military,and now has become one of the most important data bus.This thesis selected 1553 B bus as the research object,summarized the shortcomings of the 1553 B bus testing system at the present stage,and put forward a kind of 1553 B simulation test system.The system was designed as a universal test platform,which gave users the opportunity of secondary development.Users could design different simulation schemes according to their own needs.The system included two modes: design mode and simulation mode.In the design mode,according to the use of different occasions,users could customize the testing mode;and in the simulation mode,according to the testing mode of the design pattern,the program ran the simulation.Design mode was divided into three modules,ICD input,timing design,interactive design.ICD input module had standardized ICD data management function and had the capability of automatically generating communication analysis interface according to the input result.At the same time,in order to improve the input speed of ICD document,this part put forward a generalized document automation technology;Timing design was the modeling of all communication behavior based on timing,could be customized according to different applications;Interactive design,had a wealth of virtual instrument library,users could design their own interactive community according to their needs,and associated timing model.There were two running programs in simulation mode,which were front-end interaction and back-end service.The back-end service program ran according to the time series model,received the bus message in real time,and called the ICD analytical interface to analyze the bus message.At the same time,it accepted the front-end interactive operation and carried out different operations according to different triggering conditions,the operations included the transmission of the bus message and the update of the front interface.Front-end interactive program was based on user-defined interactive interface,it received data updates for the back-end server and performed user interface operations.The secondary development platform provided by the system used the interface design mode,which reduced the use of the threshold.It was simple,clear and easy to operate and improved the development efficiency.All parts of the system were universal and standardized design,could be widely used in the 1553 B bus and other similar bus test.