关键词: 系统, 信息融合, 电路故障诊断, 软件设计

Abstract: To circuit fault diagnosis on multi-source information fusion，the calculation will get larger as the quantity increment of information sources fused.By means of manual working，multi-source information is fused，which brings some problems such as high working intensity，wrong-probability of computing result and so on.Based on the problems，a system of circuit fault diagnosis based on information fusion is designed and developed in the paper.With development tools including MATLAB7.0 and Microsoft Access 2003，modular method is adopted in the system to make it has the advantages such as manipulation facility，good stability，better generality and expansibility.Flow charts of information fusion computational analysis and the architecture of the system are proposed.By the system，an experimental circuit is diagnosed to illuminate its advantages and functions.

Key words: system, information fusion, circuit fault diagnosis, software design