印染车间作业计划优化调度

Optimized scheduling of production process based on continuous-time in printing and dyeing industry

由于基于统一离散时间表示的生产过程优化模型的约束和变量多,基于连续时间的批处理短期调度在近10年得到了广泛的重视和研究。本文简略介绍了生产过程调度模型的情况,通过对生产过程优化调度模型和印染生产工艺的研究,建立了基于连续时间印染生产过程优化调度MILP模型。然后,通过把数学模型转换成IL-OG OPL语言描述的模型,以浙江省某印染企业2个案例为数据,利用ILOG CPLEX进行求解,调度结果以甘特图的形式表达。结果表明印染生产连续时间MILP调度模型的有效性,优化了车间生产资源的配置。

Due to too much constraints and variables in process scheduling model based on uniform discrete-time representation,batch short-term scheduling based on continuous-time representation has received an intensive concern and study.In this paper a brief introduction of process scheduling was given,a short-term scheduling MILP model based continuous-time representation of printing and dyeing industry was presented after studying on short-term scheduling and production recipe of printing and dyeing.Then MILP model was translated into a solvable model described by ILOP OPL language,this model together with data of two cases from a printing and dyeing corporation in Zhejiang Province were solved by ILOG CPLEX,the results were illustrated in Gantt charts.The result shows effectiveness of MILP model of printing and dyeing process and production resources in shop floor are optimized.