The study on hybrid production schedulling based on TOC

Under multi-product and small lot-size environment, stochastic features of manufacturing systems and different products mix make the conventional DBR difficult to use. An improved DBR scheduling method and its steps based on discrete event simulation system is proposed in this paper. By establishing and using of simulation model and its running, the constraints can identified more correctly than ever. Taking use of Annealing algorithm embodied in the simulation and optimization software, the optimized parameters, including the time buffer coefficient, trans. lot-size, and the task sequence of constraint operation can be determined. A production scheduling example is given which proves the validation and usability of proposed method. And at last, the influence on system performance made by time buffer coefficient and trans. lot-size are discussed.