基于PLC控制程序和模糊理论的故障诊断模型

Trouble-Diagnoise Model Based on PLC Program and Fuzzy

对 PLC控制程序所表达的信息进行分析 ,结合模糊理论 ,建立了一种设备输入与输出点之间的隶属关系 ,在故障发生时 ,诊断系统可根据这些隶属关系、故障及正常输出点信息 ,运用模糊理论及方法 ,得到有一定可信度的故障原因。

The information of PLC programe is analyzed using the theory of fuzzy, and a connection between the I/O of PLC is created. When the trouble happens, the diagnoisal system can get the reason for the trouble according to the connection and fuzzy theory.