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针对制造车间重调度触发机制问题,建立了制造车间重调度损益函数,揭示了生产车间重调度过程损失及增益的变化规律.引入云理论测度重调度损益的不确定性,使用逆向云算法计算重调度增益云和损失云的数字特征,根据云形态预测重调度损益变化趋势.提出一种基于损益云模型的重调度决策方法以判断是否需要重调度,并利用最佳损益比甄选预调度方案以兼顾生产系统的稳定性和有效性.最后,通过实例验证了该方法的合理性和实用性.
In order to solve the triggering mechanism of re-scheduling in manufacturing workshop, a profit and loss function of re-scheduling in manufacturing workshop was established, which revealed the change law of loss and gain of re-scheduling in workshop, introduced cloud theory to re-calculate the uncertainty of profit and loss, Scheduling the digital characteristics of gain cloud and loss cloud, and predicting the tendency of re-scheduling profit and loss according to the cloud shape.A new re-scheduling decision-making method based on profit and loss cloud model is proposed to determine whether re-scheduling is needed and the best pre- Taking into account the stability and effectiveness of the production system.Finally, the rationality and practicability of this method are verified by examples.