基于多信号模型的电子装备测试性分析

对于复杂的电子装备来说,有效的测试性分析有利于提高装备测试效果。运用TEAMS测试性分析工具,通过建立分层有向图表示系统属性的因果关系来建立系统故障传播特性的多信号模型,可高效地构建复杂电子装备的故障诊断模型,提高电子系统测试的故障隔离率和覆盖率。测试结果证明,多信号模型建模方法简单,诊断速度快,测试性评估效果好,可应用于复杂电子系统的测试性设计、故障模式影响、故障诊断和测试性评估等,满足现代复杂电子系统的故障诊断需求。

To complex electronic equipment,testability analysis is advantageous to improve test effect of equipment.During TEAMS testability,multi-signal model is built by a causal relationship of the system using a multilayer direction graph and used to describe TEAMS result of complex electronic equipment in fault spaces.TEAMS testability can build complex electronic equipment’s fault diagnosis model in highly efifcient and lfexible way,and also can improve electronic system fault isolation rate.In practice,TEAMS can be used to design complex electronic equipment’s testability,analysis fault model inlfuence,diagnose fault and evaluate testability,adapt to the needs of fault diagnosis in complex electronic systems.