Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy

Short response time for order processing is important for modern warehouses, which can be potentially achieved by adopting appropriate processing policy. The parallel processing policy have advantages in improving performance of many autonomous storage and retrieval systems. However, researchers ten...

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Autores principales:	Lei Deng, Lei Chen, Jingjie Zhao, Ruimei Wang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/61bb67e7a1204261ae5e1ed7e7089749
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spelling	oai:doaj.org-article:61bb67e7a1204261ae5e1ed7e70897492021-11-25T06:10:54ZModeling and performance analysis of shuttle-based compact storage systems under parallel processing policy1932-6203https://doaj.org/article/61bb67e7a1204261ae5e1ed7e70897492021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592453/?tool=EBIhttps://doaj.org/toc/1932-6203Short response time for order processing is important for modern warehouses, which can be potentially achieved by adopting appropriate processing policy. The parallel processing policy have advantages in improving performance of many autonomous storage and retrieval systems. However, researchers tend to assume a sequential processing policy managing the movement of independent resources in shuttle-based compact storage systems. This paper models and analyses a single-tier of specialized shuttle-based compact storage systems under parallel processing policy. The system is modeled as a semi-open queueing network with class switching and the parallel movement of shuttles and the transfer car is modeled using a fork-join queueing network. The analytical model is validated against simulations and the results show our model can accurately estimate the system performance. Numerical experiments and a real case are carried out to compare the performance of parallel and sequential processing policies. The results suggest a critical transaction arrival rate and depth/width ratio, below which the sequential processing policy outperforms the parallel processing policy. However, the advantage of sequential processing policy is decreasing with the increasing of shuttle number, transaction arrival rate and depth/width ratio. The results also suggest an optimal depth/width ratio with a value of 1.75 for minimizing the expected throughput time in the real system. Given the current system configurations, the parallel processing policy should be considered when the number of shuttles is larger than 2 or the transaction arrival rate is larger than 24 per hour.Lei DengLei ChenJingjie ZhaoRuimei WangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lei Deng Lei Chen Jingjie Zhao Ruimei Wang Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
description	Short response time for order processing is important for modern warehouses, which can be potentially achieved by adopting appropriate processing policy. The parallel processing policy have advantages in improving performance of many autonomous storage and retrieval systems. However, researchers tend to assume a sequential processing policy managing the movement of independent resources in shuttle-based compact storage systems. This paper models and analyses a single-tier of specialized shuttle-based compact storage systems under parallel processing policy. The system is modeled as a semi-open queueing network with class switching and the parallel movement of shuttles and the transfer car is modeled using a fork-join queueing network. The analytical model is validated against simulations and the results show our model can accurately estimate the system performance. Numerical experiments and a real case are carried out to compare the performance of parallel and sequential processing policies. The results suggest a critical transaction arrival rate and depth/width ratio, below which the sequential processing policy outperforms the parallel processing policy. However, the advantage of sequential processing policy is decreasing with the increasing of shuttle number, transaction arrival rate and depth/width ratio. The results also suggest an optimal depth/width ratio with a value of 1.75 for minimizing the expected throughput time in the real system. Given the current system configurations, the parallel processing policy should be considered when the number of shuttles is larger than 2 or the transaction arrival rate is larger than 24 per hour.
format	article
author	Lei Deng Lei Chen Jingjie Zhao Ruimei Wang
author_facet	Lei Deng Lei Chen Jingjie Zhao Ruimei Wang
author_sort	Lei Deng
title	Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
title_short	Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
title_full	Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
title_fullStr	Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
title_full_unstemmed	Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
title_sort	modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/61bb67e7a1204261ae5e1ed7e7089749
work_keys_str_mv	AT leideng modelingandperformanceanalysisofshuttlebasedcompactstoragesystemsunderparallelprocessingpolicy AT leichen modelingandperformanceanalysisofshuttlebasedcompactstoragesystemsunderparallelprocessingpolicy AT jingjiezhao modelingandperformanceanalysisofshuttlebasedcompactstoragesystemsunderparallelprocessingpolicy AT ruimeiwang modelingandperformanceanalysisofshuttlebasedcompactstoragesystemsunderparallelprocessingpolicy
_version_	1718414104794759168

Modeling and performance analysis of shuttle-based compact storage systems under parallel processing policy

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