摘要
多级流模型(MFM,Multilevel flow models)是系统目标和功能的图形化模型,作为一种功能模型,MFM通常比相应的面向事件的模型更简单,而对系统的描述更加完全,并能显著地减少计算量,因而在实时性要求很高的故障诊断中具有明显的优势.结合一个工程实例介绍MFM及建模过程,并利用MFM算法来实现系统中传感器故障的在线诊断.
Multilevel flow models （MFM） are graphical models of goals and functions of technical systems. As a functional model, MFM is usually simpler than the corresponding event - oriented model, while its description of the system is more complete, and can significantly reduce the amount of computation, so it has obvious advantages in the real - time demanding fault diagnosis. By incorporating a project example, this paper introduces MFM and the modeling process, and uses the MFM algorithm to realize the online diagnosis of sensor fault in the system.
出处
《嘉兴学院学报》
2008年第6期87-90,共4页
Journal of Jiaxing University
关键词
多级流模型
故障诊断
传感器故障
multilevel flow models
fault diagnosis
sensor fault diagnosis
