拖延
强化学习
计算机科学
工作车间
调度(生产过程)
启发式
作业车间调度
工业工程
人工智能
流水车间调度
工程类
嵌入式系统
运营管理
布线(电子设计自动化)
操作系统
作者
Jingru Chang,Dong Yu,Zheng Zhou,Wuwei He,Lipeng Zhang
出处
期刊:Machines
[MDPI AG]
日期:2022-12-09
卷期号:10 (12): 1195-1195
被引量:17
标识
DOI:10.3390/machines10121195
摘要
With the development of intelligent manufacturing, machine tools are considered the “mothership” of the equipment manufacturing industry, and the associated processing workshops are becoming more high-end, flexible, intelligent, and green. As the core of manufacturing management in a smart shop floor, research into the multi-objective dynamic flexible job shop scheduling problem (MODFJSP) focuses on optimizing scheduling decisions in real time according to changes in the production environment. In this paper, hierarchical reinforcement learning (HRL) is proposed to solve the MODFJSP considering random job arrival, with a focus on achieving the two practical goals of minimizing penalties for earliness and tardiness and reducing total machine load. A two-layer hierarchical architecture is proposed, namely the combination of a double deep Q-network (DDQN) and a dueling DDQN (DDDQN), and state features, actions, and external and internal rewards are designed. Meanwhile, a personal computer-based interaction feature is designed to integrate subjective decision information into the real-time optimization of HRL to obtain a satisfactory compromise. In addition, the proposed HRL framework is applied to multi-objective real-time flexible scheduling in a smart gear production workshop, and the experimental results show that the proposed HRL algorithm outperforms other reinforcement learning (RL) algorithms, metaheuristics, and heuristics in terms of solution quality and generalization and has the added benefit of real-time characteristics.
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