121 citations · 157 across the 5 of their papers we have counts for
7 papers
Formulating and solving integrated order batching and routing in multi-depot AGV-assisted mixed-shelves warehouses
Lin Xie, Hanyi Li, Laurin Luttmann
Different retail and e-commerce companies are facing the challenge of assembling large numbers of time-critical picking orders that include both small-line and multi-line orders. T…
Lost-customers approximation of semi-open queueing networks with backordering -- An application to minimise the number of robots in robotic mobile fulfilment systems
Sonja Otten, Ruslan Krenzler, Lin Xie +2
We consider a semi-open queueing network (SOQN), where a customer requires exactly one resource from the resource pool for service. If there is a resource available, the customer i…
Efficient order picking methods in robotic mobile fulfillment systems
Lin Xie, Nils Thieme, Ruslan Krenzler +1
Robotic mobile fulfillment systems (RMFSs) are a new type of warehousing system, which has received more attention recently, due to increasing growth in the e-commerce sector. Inst…
Deterministic Pod Repositioning Problem in Robotic Mobile Fulfillment Systems
Ruslan Krenzler, Lin Xie, Hanyi Li
In a robotic mobile fulfillment system, robots bring shelves, called pods, with storage items from the storage area to pick stations. At every pick station there is a person -- the…
From Simulation to Real-World Robotic Mobile Fulfillment Systems
Lin Xie, Hanyi Li, Nils Thieme
In a new type of automated parts-to-picker warehouse system - a Robotic Mobile Fulfillment System (RMFS) - robots are sent to transport pods (movable shelves) to human operators at…
RAWSim-O: A Simulation Framework for Robotic Mobile Fulfillment Systems
Marius Merschformann, Lin Xie, Hanyi Li
This paper deals with a new type of warehousing system, Robotic Mobile Fulfillment Systems (RMFS). In such systems, robots are sent to carry storage units, so-called "pods", from t…
Path planning for Robotic Mobile Fulfillment Systems
Marius Merschformann, Lin Xie, Daniel Erdmann
This paper presents a collection of path planning algorithms for real-time movement of multiple robots across a Robotic Mobile Fulfillment System (RMFS). Robots are assigned to mov…