Pattern moving trajectory: a new dynamics description method Online publication date: Wed, 17-Dec-2014
by Zheng-guang Xu; Jin-xia Wu
International Journal of Modelling, Identification and Control (IJMIC), Vol. 17, No. 4, 2012
Abstract: For a class of complex production process systems, a dynamics description method based on moving pattern is proposed. Different from traditional modelling methods, the definition of moving pattern is presented and the dynamics of system is directly described by the moving law of working condition pattern rather than differential equation or state space model. First, based on the actual run status data, 'pattern moving space' is constructed by a clustering algorithm. Then a variable called pattern class variable (which has statistical characteristic) is defined in this space to describe the moving of pattern. The prediction model based on pattern class variable is also constructed. This prediction model is different from the existing statistical modelling methods though they have the same structure formally. At last, one practical example of sintering process illustrates that the proposed strategy might provide satisfactory results without prior knowledge of the systems.
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