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Authors: Antonin Novak 1 ; Matous Pikous 1 ; 2 and Zdenek Hanzalek 1

Affiliations: 1 Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague, Czech Republic ; 2 Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic

Keyword(s): Circular Conveyor Belts, Manufacturing, Multi-Commodity Network Flow, Mixed-Integer Linear Programming.

Abstract: Modern industrial production with alternative process plans and the use of complex machine equipment increases requirements for its intralogistics operations in terms of efficiency, resilience, and flexibility. One of the most common solutions for transporting workpieces between the manufacturing stations is a system of conveyor belts where each conveyor rotates in a fixed direction at a constant speed. The movement of the individual workpieces can be controlled only indirectly via a set of gates connecting different carousels. In this paper, we aim to increase the flexibility of conveyor belt systems by carefully scheduling the gates to route the workpieces efficiently along the production line according to their process plans. The key component of our solution is the discretization of both the time and positions on the belts to represent the system by a directed graph with circular components. To find the routing of workpieces that minimizes the total flow time, we have reduced the problem to the integer multi-commodity flow on the time-expanded network with an extension for the vertex precedences. Despite the simplicity of the formulation, the results suggest that off-the-shelf solvers can find optimized routing for instances with tens of workpieces and more than hundreds of belt positions within a few minutes. (More)

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Paper citation in several formats:
Novak, A.; Pikous, M. and Hanzalek, Z. (2023). Optimization of Circular Conveyor Belt Systems with Multi-Commodity Network Flows. In Proceedings of the 12th International Conference on Operations Research and Enterprise Systems - ICORES; ISBN 978-989-758-627-9; ISSN 2184-4372, SciTePress, pages 203-210. DOI: 10.5220/0011784800003396

@conference{icores23,
author={Antonin Novak. and Matous Pikous. and Zdenek Hanzalek.},
title={Optimization of Circular Conveyor Belt Systems with Multi-Commodity Network Flows},
booktitle={Proceedings of the 12th International Conference on Operations Research and Enterprise Systems - ICORES},
year={2023},
pages={203-210},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011784800003396},
isbn={978-989-758-627-9},
issn={2184-4372},
}

TY - CONF

JO - Proceedings of the 12th International Conference on Operations Research and Enterprise Systems - ICORES
TI - Optimization of Circular Conveyor Belt Systems with Multi-Commodity Network Flows
SN - 978-989-758-627-9
IS - 2184-4372
AU - Novak, A.
AU - Pikous, M.
AU - Hanzalek, Z.
PY - 2023
SP - 203
EP - 210
DO - 10.5220/0011784800003396
PB - SciTePress

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