基于关键资源优先的三级装卸搬运分区协调策略

Spatial Partition and Coordination Strategies for Prioritized Three-Stage Handling Operations

研究基于关键资源优先的单元化"装卸、搬运、装卸"三级作业链调度问题。已知关键资源调度方案,将两非关键作业级的调度问题分别转化为最小单位流问题求解。在数学模型基础之上提出三级装卸搬运的分区协调策略。对关键装卸级作业区进行合理分区和设备分配,从而合理设置已知参数;提出非关键级装卸作业区的分区协调策略,以扩大计算规模。以码头三级装卸搬运作业链为例,参照宁波港码头数据,设计面向集装箱码头的仿真算例,通过较大规模算例验证分区策略对于计算大规模非关键装卸级调度问题的可行性和快捷性。

The research on the problem of unitized three-stage operational chain for material handling operations with key resource priority conditions, including three sub-processes ： loading, unloading and transport, is studied in this paper. Based on the known scheduling scheme of key resource, the two non-critical stage scheduling problems are converted into the minimum unit flow problem respectively and solved. Spatial partition and coordi- nation Strategies are developed. The critical stage of loading/unloading operation area is divided and the equip- ment in this area are allocated reasonably, so as to setup reasonable known parameters of the model. The area di- vided and coordinated scheduling strategy of the non-critical loading/unloading operation stage is presented with the aim to expand the scale of calculation. We take the three-stage container handling operational chain for example. On the basis of real Ningbo port, the material handling operation problems in the background of port are supposed. Numeric cases , especially case in large scale, are conducted to verify the model and strategy.