摘要： 提出一个将第一原理与启发式知识相结合的故障诊断系统，该系统将基于第一原理的方法与传统的基于经验知识的方法协调统一起来，因此兼具两种方法的优点。

关键词: 第一原理, 定性诊断推理, 专家系统

Abstract: Two main approaches are used for building diagnostic systems. These approaches are the first principles'approach andthe rule-based approach. This paper provides a diagnostic system for electronics fault diagnosis, which uses both the first principlesand the heuristic knowledge of domain experts. It captures the advantages and overcomes the difficulties associated with cach or theseapproaches when used separately.

中图分类号: 

• TP277