---
_id: '555'
abstract:
- lang: eng
  text: Although it is recommended to store goods in a warehouse based on the principle
    of first in first out, it is still unavoidable to use block storage of storing,
    for example, long andbulky goods. If the major advantage of block storage in area
    saving is themost important, the companyhas to accept the removal principle of
    last in first out or in other words, first in last out. The last goods to be stocked
    are the first goods to be removed and the first stocked goods are the last to
    be removed. There are some special observations in the block storage concerned
    in this paper. The first one is that the goods in the storage ordered by the customers
    can often not be removed directly from the storage without any stock movement.
    Theaim is to not only benefit fromthe high-density storage solution but also decrease
    the negative influence of block storage, especially when pre-stocked goods must
    be removed at first. The second observation is that during one concerned time
    period, forexample, one day, there may be several operations of put-away and several
    operations of order picking for shipment preparation. The third observation is
    that before goods are put away to storage, which goods to be removed are not always
    predictable. The preplanned removal dates are quite often unexpected changed.
    In this paper, scenarios with different dynamic properties and stochastic probabilities
    have been concerned and defined. Strategies for the three main stages of put-away,
    i.e. stacking, pre-marshalingand retrieval are defined and examined developed.
    Simulations have been conducted to examine the strategies based on different scenarios.
    The aimis to select the right strategy which may reduce the overall relocation
    operations. It is expected that the sum of blocks movement during put-away i.e.
    stacking, pre-marshaling, and block retrieval is optimally minimized.
author:
- first_name: Li
  full_name: Li, Li
  id: '58482'
  last_name: Li
citation:
  ama: 'Li L. Put-Away and Retrieval Optimization Strategies towards Reduction of
    Blocks Relocations in a Block Storage. In: Villmer F-J, Padoano E, Department
    of Production Engineering and Management, eds. Lemgo; 2018:101-112.'
  apa: Li, L. (2018). Put-Away and Retrieval Optimization Strategies towards Reduction
    of Blocks Relocations in a Block Storage. In F.-J. Villmer, E. Padoano, &
    Department of Production Engineering and Management (Eds.) (pp. 101–112). Presented
    at the Proceedings 8th International Conference, Lemgo.
  bjps: <b>Li L</b> (2018) Put-Away and Retrieval Optimization Strategies towards
    Reduction of Blocks Relocations in a Block Storage. In Villmer F-J, Padoano E
    and Department of Production Engineering and Management (eds). Lemgo, pp. 101–112.
  chicago: Li, Li. “Put-Away and Retrieval Optimization Strategies towards Reduction
    of Blocks Relocations in a Block Storage.” edited by Franz-Josef Villmer, Elio
    Padoano, and Department of Production Engineering and Management, 101–12. Lemgo,
    2018.
  chicago-de: 'Li, Li. 2018. Put-Away and Retrieval Optimization Strategies towards
    Reduction of Blocks Relocations in a Block Storage. In: , hg. von Franz-Josef
    Villmer, Elio Padoano, und Department of Production Engineering and Management,
    101–112. Lemgo.'
  din1505-2-1: '<span style="font-variant:small-caps;">Li, Li</span>: Put-Away and
    Retrieval Optimization Strategies towards Reduction of Blocks Relocations in a
    Block Storage. In: <span style="font-variant:small-caps;">Villmer, F.-J.</span>
    ; <span style="font-variant:small-caps;">Padoano, E.</span> ; <span style="font-variant:small-caps;">Department
    of Production Engineering and Management</span> (Hrsg.): . Lemgo, 2018, S. 101–112'
  havard: 'L. Li, Put-Away and Retrieval Optimization Strategies towards Reduction
    of Blocks Relocations in a Block Storage, in: F.-J. Villmer, E. Padoano, Department
    of Production Engineering and Management (Eds.), Lemgo, 2018: pp. 101–112.'
  ieee: L. Li, “Put-Away and Retrieval Optimization Strategies towards Reduction of
    Blocks Relocations in a Block Storage,” presented at the Proceedings 8th International
    Conference, Lemgo, 2018, no. 1, pp. 101–112.
  mla: Li, Li. <i>Put-Away and Retrieval Optimization Strategies towards Reduction
    of Blocks Relocations in a Block Storage</i>. Edited by Franz-Josef Villmer et
    al., no. 1, 2018, pp. 101–12.
  short: 'L. Li, in: F.-J. Villmer, E. Padoano, Department of Production Engineering
    and Management (Eds.), Lemgo, 2018, pp. 101–112.'
  ufg: '<b>Li, Li (2018)</b>: Put-Away and Retrieval Optimization Strategies towards
    Reduction of Blocks Relocations in a Block Storage, in: Franz-Josef Villmer et.
    al. (Hgg.): , Lemgo, S. 101–112.'
  van: 'Li L. Put-Away and Retrieval Optimization Strategies towards Reduction of
    Blocks Relocations in a Block Storage. In: Villmer F-J, Padoano E, Department
    of Production Engineering and Management, editors. Lemgo; 2018. p. 101–12.'
conference:
  end_date: 2019-10-05
  location: Lemgo
  name: Proceedings 8th International Conference
  start_date: 2019-10-04
corporate_editor:
- Department of Production Engineering and Management
- Hochschule Ostwestfalen-Lippe
date_created: 2019-02-13T15:12:26Z
date_updated: 2023-03-15T13:50:00Z
department:
- _id: DEP7000
- _id: DEP1306
editor:
- first_name: Franz-Josef
  full_name: Villmer, Franz-Josef
  last_name: Villmer
- first_name: Elio
  full_name: Padoano, Elio
  last_name: Padoano
issue: '1'
keyword:
- Block storage
- Put-away
- Blocks relocation
- Block retrieval
- Order picking
- First in last out
- First in first out
- Pre-marshalling
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM2018_proceedings_web.pdf
oa: '1'
page: 101-112
place: Lemgo
publication_identifier:
  isbn:
  - 978-3-946856-03-0
publication_status: published
related_material:
  link:
  - relation: contains
    url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM2018_proceedings_web.pdf
status: public
title: Put-Away and Retrieval Optimization Strategies towards Reduction of Blocks
  Relocations in a Block Storage
type: conference
user_id: '45673'
year: 2018
...
---
_id: '599'
abstract:
- lang: eng
  text: "Order picking has long been identified as the most labor costly and intensively
    activity in warehouse management. The orders from the customers need to be fulfilled
    tightly and timely. In order to keep the required high service level, the warehouse
    has to increase the picking productivity under the constraints of limited capacity.
    This paper concerns a man-togoods order picking system, in which the order pickers
    have to drive with a pallet jack to the storage locations. Considering that the
    orders are mostly small orders which consist of less lines, it is efficient to
    combine severalsingle customer orders into one picking order. Under this circumstance,
    this paper intends to answer the question of how customer orders should be grouped
    into picking orders with the aim of minimizing the total travel length through
    the warehouse. Consequently the productivity of the order picking system can be
    improved. An optimization problem for order batching is introduced. The optimization
    method of order batching is then proposed. Based on the simulation of different
    scenarios of incoming orders, it can be concluded that the developed method is
    effective in improving the productivity of the concerned order picking system.\r\n"
author:
- first_name: Li
  full_name: Li, Li
  id: '58482'
  last_name: Li
- first_name: L.
  full_name: Schulze, L.
  last_name: Schulze
citation:
  ama: 'Li L, Schulze L. Improving the Productivity of a Man-to-Goods Order Picking
    System through Optimization of Order Batching. In: Padoano E, Villmer F-J, Department
    of Production Engineering and Management, eds. <i>Production Engineering and Management</i>.
    Lemgo; 2015:319-326.'
  apa: Li, L., &#38; Schulze, L. (2015). Improving the Productivity of a Man-to-Goods
    Order Picking System through Optimization of Order Batching. In E. Padoano, F.-J.
    Villmer, &#38; Department of Production Engineering and Management (Eds.), <i>Production
    Engineering and Management</i> (pp. 319–326). Lemgo.
  bjps: <b>Li L and Schulze L</b> (2015) Improving the Productivity of a Man-to-Goods
    Order Picking System through Optimization of Order Batching. In Padoano E, Villmer
    F-J and Department of Production Engineering and Management (eds), <i>Production
    Engineering and Management</i>. Lemgo, pp. 319–326.
  chicago: Li, Li, and L. Schulze. “Improving the Productivity of a Man-to-Goods Order
    Picking System through Optimization of Order Batching.” In <i>Production Engineering
    and Management</i>, edited by Elio Padoano, Franz-Josef Villmer, and Department
    of Production Engineering and Management, 319–26. Lemgo, 2015.
  chicago-de: 'Li, Li und L. Schulze. 2015. Improving the Productivity of a Man-to-Goods
    Order Picking System through Optimization of Order Batching. In: <i>Production
    Engineering and Management</i>, hg. von Elio Padoano, Franz-Josef Villmer, und
    Department of Production Engineering and Management, 319–326. Lemgo.'
  din1505-2-1: '<span style="font-variant:small-caps;">Li, Li</span> ; <span style="font-variant:small-caps;">Schulze,
    L.</span>: Improving the Productivity of a Man-to-Goods Order Picking System through
    Optimization of Order Batching. In: <span style="font-variant:small-caps;">Padoano,
    E.</span> ; <span style="font-variant:small-caps;">Villmer, F.-J.</span> ; <span
    style="font-variant:small-caps;">Department of Production Engineering and Management</span>
    (Hrsg.): <i>Production Engineering and Management</i>. Lemgo, 2015, S. 319–326'
  havard: 'L. Li, L. Schulze, Improving the Productivity of a Man-to-Goods Order Picking
    System through Optimization of Order Batching, in: E. Padoano, F.-J. Villmer,
    Department of Production Engineering and Management (Eds.), Production Engineering
    and Management, Lemgo, 2015: pp. 319–326.'
  ieee: L. Li and L. Schulze, “Improving the Productivity of a Man-to-Goods Order
    Picking System through Optimization of Order Batching,” in <i>Production Engineering
    and Management</i>, Trieste, Italy, 2015, no. 1, pp. 319–326.
  mla: Li, Li, and L. Schulze. “Improving the Productivity of a Man-to-Goods Order
    Picking System through Optimization of Order Batching.” <i>Production Engineering
    and Management</i>, edited by Elio Padoano et al., no. 1, 2015, pp. 319–26.
  short: 'L. Li, L. Schulze, in: E. Padoano, F.-J. Villmer, Department of Production
    Engineering and Management (Eds.), Production Engineering and Management, Lemgo,
    2015, pp. 319–326.'
  ufg: '<b>Li, Li/Schulze, L. (2015)</b>: Improving the Productivity of a Man-to-Goods
    Order Picking System through Optimization of Order Batching, in: Elio Padoano
    et. al. (Hgg.): <i>Production Engineering and Management</i>, Lemgo, S. 319–326.'
  van: 'Li L, Schulze L. Improving the Productivity of a Man-to-Goods Order Picking
    System through Optimization of Order Batching. In: Padoano E, Villmer F-J, Department
    of Production Engineering and Management, editors. Production Engineering and
    Management. Lemgo; 2015. p. 319–26.'
conference:
  end_date: 2015-10-02
  location: Trieste, Italy
  name: Proceedings5th International Conference
  start_date: 2015-10-01
corporate_editor:
- Department of Production Engineering and Management
- Hochschule Ostwestfalen-Lippe
date_created: 2019-02-19T07:34:56Z
date_updated: 2023-03-15T13:50:03Z
department:
- _id: DEP7000
- _id: DEP1306
editor:
- first_name: Elio
  full_name: Padoano, Elio
  last_name: Padoano
- first_name: Franz-Josef
  full_name: Villmer, Franz-Josef
  last_name: Villmer
issue: '1'
keyword:
- Order picking
- man-to-goods
- order batching
- picking productivity
- genetic algorithm
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM_Tagung_zusammen2015.pdf
oa: '1'
page: 319-326
place: Lemgo
publication: Production Engineering and Management
publication_identifier:
  isbn:
  - 978-3-941645-11-0
publication_status: published
related_material:
  link:
  - relation: contains
    url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM_Tagung_zusammen2015.pdf
status: public
title: Improving the Productivity of a Man-to-Goods Order Picking System through Optimization
  of Order Batching
type: conference
user_id: '45673'
year: 2015
...