Dynamic control for in-plant milk-run systems with volatile transport demand

运输需求不稳定的厂内牛奶运行系统的动态控制

• 批准号: 280752532
• 负责人: Professor Dr.-Ing. Willibald A. Günthner
• 金额: --
• 依托单位: Lehrstuhl für Fördertechnik, Materialfluss, Logistik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/280752532?language=en
• 关键词: Dynamic; control; plant; milk; run

Recently, transportation systems for in-plant production supply are often organized as in-plant milk-run systems. These systems deliver different materials to various points of use in a single tour with high frequency. In state-of-the-art planning procedures milk-run routes and departure times are planned and fixed long-term assuming constant material demand known well ahead. However, in operational in-plant milk-run systems material demand is volatile in the short term and demand peaks result in expensive exception handling processes. The objective of the research project is to develop a control concept for in-plant milk-run systems, determining routes, departure times and resource allocation dynamically based on current transportation orders and the milk-run systems current state. In contrast to existing planning procedures for milk-run systems, several planning decisions have to be implemented into the control logic. Corresponding decision algorithms are not published and will be developed and evaluated as part of this research. These algorithms continually have to determine, which transportation orders to serve with which resource, on which route and at what time. The aim of this concept is to enable stable system operations even in systems where transportation demand is volatile in the short term and thus avoid costly exception handling procedures. Overall, a reduction of necessary resources is expected in comparison to the static planning scenario due to the resource allocation based on actual transportation orders. Additionally, re-planning of routes and timetables based on long-term changes in demand is obsolete. Furthermore recommendations on typical use cases where the dynamic approach is most beneficial will be derived.

最近，用于植物内生产供应的运输系统通常被组织为植物内部牛奶运营系统。这些系统在高频巡回演出中为各种使用点提供不同的材料。在最先进的计划程序中，牛奶运行的路线和出发时间是计划的，并固定了长期的，假设未来的材料需求持续不断。但是，在运营内部牛奶运营的系统中，物料需求在短期内是波动的，需求峰值导致昂贵的异常处理过程。研究项目的目的是为植物内部的牛奶运营系统开发控制概念，根据当前的运输订单和牛奶运营的系统当前状态，以动态分配路线，出发时间和资源分配。与现有的牛奶运营系统计划程序相反，必须在控制逻辑中实施一些计划决策。相应的决策算法未发表，并将作为本研究的一部分进行开发和评估。这些算法必须不断确定，哪些运输命令可用于哪种资源，哪个路线和什么时间。这个概念的目的是在短期内运输需求波动，因此避免昂贵的例外处理程序的系统中，即使在运输需求易变的系统中也可以实现稳定的系统操作。总体而言，与基于实际运输订单的资源分配相比，预计将减少必要资源。此外，基于需求的长期变化的路线和时间表的重新规划是过时的。此外，将对最有益的动态方法最有益的典型用例提出建议。

项目成果

Steuerung von Routenzugsystemen

拖车系统的控制

• DOI: 10.3139/104.111821
• 发表时间: 2017
• 期刊: Zeitschrift für wirtschaftlichen Fabrikbetrieb
• 作者: Hormes;Fottner;Günthner
• 通讯作者: Günthner

Modeling and Simulation of Generic Handling Operations in In-Plant Milk-Run Systems

厂内牛奶运行系统中通用处理操作的建模和仿真

• DOI: 10.1109/icitm.2019.8710720
• 发表时间: 2019
• 期刊: 2019 8th International Conference on Industrial Technology and Management (ICITM)
• 作者: Günthner;Fottner
• 通讯作者: Fottner