The Design And Implementation Of ICD Manage Software Based On AFDX Bus

The airborne data bus is the bridge which connects the neural center of airborne equipment and data exchange. As the core technology of modern aircraft telex operated system and avionic integration, this is determines the performance of the aircraft. With the rapid development of network, micro-electronics and communication technologies recently, the avionics systems also have a great growth. As the future research field of new generation of avionics systems, AFDX(Avionics Full Duplex Switched Ethernet)is getting more attention.Based on the mature Ethernet technology, it makes the communication between avionics and ground system easier, more reliable. And many subsystems can be cascaded to the terminal system by star-topology, the interference can be removed within the subsystems, and the characteristics like low cost, high speed, easy expansion make it widely applications in different fields. In this thesis, according to the above requirements, ICD(Interface Control Document) management software of AFDX bus is designed which provides a useful data analysis and parsing of bus for the testing personnel. Then the main work of this thesis follows:(1) This paper firstly summarizes the standard agreement, constitution of network, structure of data and communication principles of terminal system of AFDX bus. Secondly, we discuss the composition, effect and clarification of function module of this ICD software. Then we design a ICD software which can provide a reference standard to the bus data analysis and paring by the configuration files and database operation. Finally, we design a ICD management software of this AFDX data bus which bases on the above foundation of ICD software. According to the information exchange between ICD and AFDX, the real-time accurate monitoring, analysis, paring, storage and transmit can be achieved on the AFDX bus. The software development platform is Microsoft Visual Studio 2008; the ICD management software’s programming language is C#; AFDX bus management software using C + +, and the dialog programming technique is used to design this system.(2) According to the simulation testing and fault simulation injection to the configuration of ICD software data, this system can judge the communication status of AFDX terminal subsystem automatically, decreasing the cost and number of experiments enormously. In addition, a reserve interface is added to the system on the design process: Message Type, making this ICD management software can be used in other fields. The tests show that the software is capable of real-time and accurate analysis of the information transmitted on the bus, and detect some normal communication situations of subsystems, having strong anti-interference, scalability, and broad application prospects.