Rescheduling Method in Production Process of Cold Rolling Based on the Partial Reconfigurable Production
基于部分生产重构的冷轧生产重调度方法

The arrangement of production only by means of order flows may often cause the uneven productivity flows. The regular maintenance and some unanticipated faults that are inevitable may make a certain production flow be shutdown. For solving such a problem, a model of partly reconfigurable hybrid Petri net is established and a finite-searching ant colony optimization is presented in this paper according to the hybrid characteristics of cold rolling plant. With reconfiguring the production flows of orders among the fungible machines, the above method gives a redesign of production flow and the dynamic scheduling solution of orders production in order to resolve the production scheduling due to the maintenance and faults. The practical experiments with real data of Shanghai Baosteel Co., Ltd. illustrate that the proposed method obtains a great improvement of the production planning and scheduling of whole production flow.