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Gantry Scheduling for Two-Machine One-Buffer Composite Work Cell by Reinforcement Learning

[+] Author Affiliations
Jorge Arinez

General Motors R&D, Warren, MI

Xinyan Ou, Qing Chang

Stony Brook University, Stony Brook, NY

Paper No. MSEC2017-2854, pp. V004T05A025; 7 pages
doi:10.1115/MSEC2017-2854
From:
  • ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing
  • Volume 4: Bio and Sustainable Manufacturing
  • Los Angeles, California, USA, June 4–8, 2017
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-5075-6
  • Copyright © 2017 by ASME and General Motors

abstract

In this paper, a manufacturing work cell with a gantry that is in charge of moving materials/parts between machines and buffers is considered. With the effect of the gantry movement, the system performance becomes quite different from traditional serial production lines. In this paper, reinforcement learning is used to develop a gantry scheduling policy in order to improve system production. The gantry learns to take proper actions under different situations to reduce system production loss by using Q-Learning algorithm and finds the optimal moving policy. A two-machine one-buffer work cell with a gantry is used for case study, by which reinforcement learning is applied. Compare with the FCFS policy, the fidelity and effectiveness of the reinforcement learning method are also demonstrated.

Copyright © 2017 by ASME and General Motors

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