Hierarchical modeling and simulation of dynamic production logistic system

Aimed to the problem of model bound with data and structure rigidity in simulation, hierarchical modelling and simulation technology for dynamical production logistic system is presented with the view of data-driven and dynamical hierarchy relating. Representative model of four control levels including factory(FM), workshop(SM), cell(CM) and equipment(EM) and its dynamic modeller (DM) was put forward. Data-driven model generation and running mechanism was explained to solve the automatic modeling problem of fast application and system integration. Flexible simulation control mechanism based on dynamic layer relating was constructed by using BUFFER and AGV. Realization rules and conditions of dynamic layer relating was analyzed in detail, and its procedure parsed by examples. Development and implementation indicates the practical values of the hierarchical modeling and simulation technology of the dynamic production logistic system.