A Fuzzy Implementation for Optimization of Storage Locations in an Industrial AS/RS

Warehousing is commonly used in factories for the storage of products until delivery of orders. As the amount of products stored increases it becomes tedious to be carried out manually. In recent years, the manual storing has converted into fully or partially computer controlled systems, also known as Automated Storage and Retrieval Systems (AS/RS). This paper discusses an ASRS system, which was designed such that the best storage location for the products is determined by utilizing a fuzzy control system. The design maintains the records of the products to be/already in store and the storage/retrieval times along with the availability status of the storage locations. This paper discusses on the maintenance of the above mentioned records and the utilization of the concept of fuzzy logic in order to determine the optimum storage location for the products. The paper will further discuss on the dynamic splitting and merging of the storage locations depending on the product sizes.

Authors:

• C. Senanayake
• S. Veera Ragavan

Keywords:

• ASRS
• fuzzy control systems
• MySQL database
• dynamic splitting and merging.

References:

[1] Hu Yahong, Xu Xiang, Hsu Wen-Jing, Toh Ah Cheong, Loh Chee Kit,
song Tiancheng. "Efficient algorithms for load shuffling in automated
storage/retrieval systems." Computational Intelligence in robotics and
Automation, 2003. Proceedings. 2003 IEEE Ineternational Symposium
on Volume 3, 16 - 20 July 2003 Page(s):1156 - 1161 vol. 3.
[2] Hu Yahong, Huang Shell Ying, Chen Chuanyu, Hsu Wen-Jing, Toh Ah
Cheong, Loh Chee Kit. "Travel time analysis of a new Automated
Storage and Retrieval System." Emerging Technologies and Factory
Automation, 2003. Proceedings. ETFA -03. IEEE Conference, Volume
1, 16 - 17 Sept. 2003 Page(s):75 - 81 vol .1.
[3] D. R. Sule. "Manufacturing facilities, Location, Planning and Design."
PWS Publishing Company, 1994.
[4] Liu Sai-Nan, Ke Ting Lin, Li Jiang-Xiong, Lu Zhen, "Optimization for
automated warehouse based on scheduling policy." Jisyanji Jicheng
Zhizao Xitong / Computer Integrated Manufacuring System, CIMS v 12,
September 2996, Page(s) 1438 - 1443.
[5] Michael Negnevitsky. "Artificial Intelligence, a guide to intelligent
systems." Addison Wesley, 2004.
[6] H. M. Deitel, P. J. Deitel, T. R. Nieto. "Visual Basic 6: how to
program" Upper Saddle River, NJ : Prentice Hall, 1999.-
[7] Frazelle E, "Design problems in automated warehousing." Robotics and
Automation. Proceedings 1986 IEEE International Conference on
Volume 3, April 1986 Page(s):486 - 489.
[8] Paul Dubois. MySQL Cookbook. O-Reilly, 2003.
[9] Platzman L. K, Bartholdi J, J. "An optimization methodology for
automated storage and retrieval systems." Decision and Control
including the Symposium on Adaptive Proccesses, 1981 20th IEEE
Conference on Volume 20, Part 1, Dec 1981 Page(s): 634 - 636.
[10] Vaibhav C Naik. "Fuzzy C- Means clustering approach to design a
warehouse layout." Department of Industrial and Management Systems
Engineering, College of Engineering, University of South Florida.