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当前智能化系统(Intelligent System,IS)在建筑中的应用日趋广泛,其功能越来越强大,系统越来越复杂,发生故障后诊断和修复也日趋复杂。本文针对这一问题,提出了一种基于专家系统的故障诊断方法,对IS故障诊断专家系统的结构,知识表示,推理等方面进行了分析探讨,提出了框架和规则相结合的知识表示法,研究设计了基于“框架规则+不确定性推理”的推理模式,既方便实现,又利于推理效率的提高,为故障的快速定位和解决提供了先进的手段。
At present, Intelligent System (IS) is widely used in buildings. Its functions are becoming more and more powerful, the system becomes more and more complicated, and the diagnosis and repair after a fault also become more and more complicated. Aiming at this problem, a fault diagnosis method based on expert system is proposed in this paper. The structure, knowledge representation and reasoning of IS fault diagnosis expert system are analyzed and discussed. A knowledge representation method combining frame and rule is put forward. The reasoning mode based on “frame rule + uncertainty reasoning ” is researched and designed, which is not only easy to implement, but also beneficial to the improvement of reasoning efficiency, which provides an advanced means for rapid fault location and resolution.