ARX Based On The Realization Of Large-Scale Fault Tree Method

System fault tree analysis, referred to as FTA (Fault Tree Analysis), is commonly used as a security system engineering analysis, is recognized at home and abroad evaluate complex system reliability and security of a practical approach. According to reliability and safety of the application of fault tree analysis of work requirements, combined with computer-aided fault tree analysis software development trends, this paper the working principle of fault tree conducted in-depth research and the use of AUTOCAD secondary to the development of ARX.Paper discusses the fault tree analysis system composition, characteristics, procedures, principles and design of the minimal cut sets, the best path set procedures and operation principle of the calculation carried out a more in-depth analysis. System integrates visual achievements, analysis, and draw in one, automatic fault tree qualitative analysis.The realization of a large fault tree method mainly includes three parts: the input fault tree, fault tree analysis and fault tree output. The input fault tree includes some of the major fault tree construction, the establishment of fault tree mathematical model. Fault tree analysis fault tree includes qualitative analysis and quantitative analysis, including qualitative analysis in order minimal cut sets and the best set of the main paths. Fault tree is to use the output of some of the major ARX secondary development of AUTOCAD, AUTOCAD environment, drawing in the fault tree graphic, and print out the fault tree graphic, to realize large-scale fault tree drawing.