Research and application of hierarchical model for multiple fault diagnosis

来源 :系统工程与电子技术(英文版) | 被引量 : 0次 | 上传用户:puzz777
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Computational complexity of complex system multiple fault diagnosis is a puzzle at all times. Based on the well-known Mozetics approach, a novel hierarchical model-based diagnosis methodology is put forward for improving efficiency of multi-fault recognition and localization. Structural abstraction and weighted fault propagation graphs are combined to build diagnosis model. The graphs have weighted arcs with fault propagation probabilities and propagation strength. For solving the problem of coupled faults, two diagnosis strategies are used: one is the Lagrangian relaxation and the primal heuristic algorithms; another is the method of propagation strength. Finally, an applied example shows the applicability of the approach and experimental results are given to show the superiority of the presented technique.
其他文献
通过尝试给出软直方图估计模型中样本不完备度和模型粗糙度匹配关系的公式化定义,发现了一个反精确规则.该反精确规则给出的启示是,如果信息是不完备的,则一个较粗糙模型的识
A design method is presented for Takagi-Sugeno (T-S) fuzzy model based nonlinear sliding model controller. First, the closed-loop fuzzy system is divided into a
为了建立制造的管控系统模型,在传统递阶型HDS模型的基础上提出新的模型框架,用双向输出有限自动机理论设计其接口,克服了传统模型不能反映系统的HDS特征及排斥RW控制理论的
 通过引入信息量和条件信息量,对不完备信息系统中属性的重要性进行了定义;针对不完备数据表和不完备决策表提出了一种基于信息量和条件信息量的属性约简启发式算法,该算法
A new incremental clustering method is presented, which partitions dynamic data sets by mapping data points in high dimension space into low dimension space bas
本文通过对作者全程参与的大连星海湾地区开发建设历程的回顾,对城市滨水区建设、山海城市特色创造、控制性详细规划、城市的动态发展等,谈了作者的心得和体会.
A method to produce ZrO2 nano-particles is developed and the effect of particle size on the phase structure of ZrO2 is studied. The method is based on the hydro
对泰来县医疗废物的产生量,处理现状进行了调查分析,针对存在的问题,提出了切实可行的污染防治对策.
在分析军事和民用设施平面选址目标的基础上,归纳建立了minisum与minimax、maximin与minimax两类二重标准平面选址模型,结合实例提出了Voronoi图与固定步长搜索相结合的求解方法:首先,根据选址点与需求点及负面影响点的平面位置关系,分析画出选址问题的最远点和最近点加权Voronoi图;其次在指定的Voronoi多边形边线上按固定步长搜索出二重标准平面选址模型的非劣集;最后绘制
介绍用“干法”生产含磷复肥的工艺以及建立的1条年产100kt硫尿磷钾复肥生产线的情况和工业性试验的结果。结果表明,该工艺在工业上可行,具有工艺简单、流程短、投资省、能耗