机械加工自动线嵌入式故障诊断研究  被引量:1

On Fault Diagnosis Program to be Embedded in an Automatic Machining Line

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作  者:曹健[1] 哈思东[1] 刘炎[1] 周祖德[1] 

机构地区:[1]华中理工大学机械科学与工程学院,430074

出  处:《华中理工大学学报》1998年第2期14-16,共3页Journal of Huazhong University of Science and Technology

摘  要:基于有限状态自动机/形式语言的离散事件动态系统(DEDS)诊断理论,探讨了机械加工自动线嵌入式故障诊断技术的实现方法,同时讨论了嵌入式诊断代码生成问题.The realization of a fault diagnosis program to be embedded in an automatic machining line is discussed, based on diagnostic theory for the discrete event dynamic system (DEDS) modeled by finite state machine/formal language theory. The testable event theory is the basis for the description of the diagnosticability of a system, and the minimum testable space of a system can be obtained using the minimum partitioning algorithm based on the theory mentioned. According to such partitioning, the fault set needed to be handled with can be specified when the embedded diagnostic programming is designed. In practical applications, the diagnostic method and the procedures of the embedded diagnosis program in the machining line is discussed with the automatic machining line for the front and rear end surface of type 6112 diesel engine body made in Guangxi YuChai Co. Ltd. A simple example is used to explain the algorithm of minimum partitioning, and the generation of diagnosis code is also discussed.

关 键 词:机械加工自动线 故障诊断 嵌入式 PLC 

分 类 号:TP277[自动化与计算机技术—检测技术与自动化装置]

 

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