IETM在航电故障诊断系统中的应用

Application of IETM in avionics fault diagnosis system

采用交互式电子数据手册(IETM),可以实现数据的互操作性和共享性,从而提高航空电子系统的综合保障水平。首先给出IETM的分类和设计思想。然后运用结构化、模块化、功能化的设计思想,建立IETM开发流程模型,并得到了技术信息收集、数据转换、信息发布的主要方法。最后完成了一种以网络为中心的航电IETM故障诊断系统的设计,该系统能够辅助维修技术人员与故障诊断专家实时在线交互,实现对被测系统的故障诊断与隔离。

Interactive Electronic Technical Manual（IETM） realizes data interoperability and sharing,and thus enhances the supportability of avionics system.Firstly,the classification and the design scheme of IETM are presented in the paper.Structuralization,modularization and functionalization are adopted in the design and the construction of IETM model.The primary method of technology information collection,data conversion and information dissemination is achieved.Finally,a web-based avionics fault diagnosis system is proposed and implemented,which enables maintenance technicians and fault diagnostic experts to communicate interactively online in real-time,and realizes the fault diagnostic and isolation of the system under test.