关键词: 重型装备, 故障诊断, 结构检索, 案例检索

Abstract: Three ways to obtain fault information for heavy equipment fault diagnosis system was studied, such as the control system of the device, layout sensor to get the key performance parameters, and human-computer interaction. With the fault diagnosis system in the amount of information from less to more, the fault location structure retrieval method, similar case retrieval method were used to conduct fault diagnosis, which improved diagnostic accuracy and efficiency. This system was applied in the heavy equipment diagnosis system and the effectiveness of the diagnosis system was verified.

Key words: heavy equipment, fault diagnosis, structure retrieval, case retrieval