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Digital twin-empowered robotic arm manipulation with reinforcement learning: A comprehensive survey 基于强化学习的数字孪生机器人手臂操作:一项综合调查
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-09-30 DOI: 10.1016/j.rcim.2025.103151
Yichen Wang , Shuai Zheng , Ze Yang , Yingnan Zhu , Sen Zhang , Jiewu Leng , Jun Hong
Recent decades have witnessed rapid development and increasing widespread applications of robotics across various industries. On one hand, the robotic arm, being the key component of robotics, has attracted the attention of scholars and experts with its application in quite a number of smart factory tasks. On the other hand, Digital Twin (DT), as an emerging virtual-physical bridging technique, offers significant advantages over testing robotic arm manipulation algorithms only within simulation environments. By facilitating the accurate validation of algorithms in real environments, DT provides a realistic basis for testing and optimizing their feasibility. This paper discusses the state-of-the-art of robotic arm intelligent manipulation related techniques empowered by DT and illustrates the picture for its future development. More specifically, it provides a novel perspective to analyze the entire workflow of DT-empowered robotic arm intelligent manipulation techniques, from task definition to path planning, simulation environment, and virtual-real communications, respectively. First, diverse robotic arm manipulation tasks, such as catching, picking & placing, and assembling are reviewed along with the methods of path planning and collision avoidance. Second, this paper discusses the evolution of various path planning algorithms for robotic arm manipulation, highlighting reinforcement learning methods such as Deep Q-learning and Proximal Policy Optimization approaches. Third, this paper reviews on the simulation environments containing Unity, MuJoCo, ROS, PyBullet and so on, in which different deep learning methods are implemented. Finally, recent developed robotic arm DT systems including some new Augmented Reality and Virtual Reality aided applications are analyzed. It is hoped that this study will provide valuable insights for DT-empowered robotic arm techniques and pave the way for further development of more advanced researches.
近几十年来,机器人技术发展迅速,在各个行业的应用越来越广泛。一方面,机械臂作为机器人技术的关键部件,在众多智能工厂任务中的应用引起了学者和专家的关注。另一方面,数字孪生(DT)作为一种新兴的虚拟物理桥接技术,与仅在仿真环境中测试机械臂操作算法相比,具有显著的优势。通过促进算法在真实环境中的准确验证,DT为测试和优化算法的可行性提供了现实基础。本文讨论了基于DT的机械臂智能操作相关技术的发展现状,并对其未来发展进行了展望。更具体地说,它提供了一个新的视角来分析dt授权的机械臂智能操作技术的整个工作流程,分别从任务定义到路径规划、仿真环境和虚拟-真实通信。首先,回顾了机器人手臂的各种操作任务,如抓取、拾取、放置和组装,以及路径规划和避免碰撞的方法。其次,本文讨论了机械臂操作中各种路径规划算法的发展,重点介绍了Deep Q-learning和Proximal Policy Optimization方法等强化学习方法。第三,本文综述了Unity、MuJoCo、ROS、PyBullet等仿真环境,在这些仿真环境中实现了不同的深度学习方法。最后,分析了近年来发展起来的机械臂DT系统,包括一些新的增强现实和虚拟现实辅助应用。希望本研究能够为dt增强机械臂技术提供有价值的见解,并为进一步开展更先进的研究铺平道路。
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引用次数: 0
Physics-based simulation framework for Digital Twin applications: Machine parameter tuning for handling of lumber in the wood industry 数字孪生应用的基于物理的模拟框架:木材工业中处理木材的机器参数调整
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-10-03 DOI: 10.1016/j.rcim.2025.103144
Francesco Berardinucci, Marco Rossoni, Giorgio Colombo, Marcello Urgo
Tuning the operational parameters of complex handling machines involves a complex interplay of variables impacting the performance and reliability of the equipment and the processes being executed. By integrating advanced simulation tools in DTs architectures, manufacturers can predict and analyse the performance of machines under various settings and scenarios. This paper proposes a physics-based simulation framework designed for offline optimisation of machine parameters and for integration in Digital Twin applications to explore the configuration space of machine parameters for their selection and fine-tuning. The framework enables virtual exploration of the parameter space to identify optimal parameter settings in terms of productivity and stability for both design-phase analysis and machine setup optimisation. While developed as a simulation component suitable for integration within Digital Twin architectures, the current implementation operates independently of real-time data integration. A case study from the wood industry demonstrates the application and validation of the approach under realistic operational scenarios, showing the framework’s potential for deployment in Digital Twin systems.
调整复杂搬运机器的操作参数涉及影响设备和正在执行的过程的性能和可靠性的变量的复杂相互作用。通过在DTs架构中集成先进的仿真工具,制造商可以预测和分析机器在各种设置和场景下的性能。本文提出了一种基于物理的仿真框架,用于机器参数的离线优化和集成在数字孪生应用中,以探索机器参数的配置空间,以进行选择和微调。该框架允许对参数空间进行虚拟探索,以确定设计阶段分析和机器设置优化的生产率和稳定性方面的最佳参数设置。虽然作为适合集成在数字孪生体系结构中的模拟组件开发,但当前的实现独立于实时数据集成。木材行业的一个案例研究展示了该方法在实际操作场景下的应用和验证,展示了该框架在数字孪生系统中部署的潜力。
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引用次数: 0
Master-slave dual-arm learning from demonstration assembly based on modified triple reversible dynamic motion primitives 基于改进三可逆动态运动原语的示范装配主从双臂学习
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-09-10 DOI: 10.1016/j.rcim.2025.103118
Xiangfei Li, Yuhui Jian, Huan Zhao, Yuwei Shan, Han Ding
For the peg-in-hole assembly tasks with small clearance, the traditional robot trajectory generation methods rely heavily on expert knowledge, which is complex and costly. In contrast, learning from demonstration method does not require expert knowledge, and can enable the robots to quickly learn and encode assembly trajectories. However, due to the rich contact states, easy jamming and collaborative constraints during the assembly process, dual arm learning from demonstration assembly remains a challenging task. For the reason, this paper first proposes a new dynamic motion primitives method that has both global asymptotic stability and reversibility, which can switch the forward and reverse directions of the trajectory generation process at any time to alleviate the jamming problem. Then, a uniform and concise robot pose synchronization description approach based on triple position reversible dynamic motion primitives is given. On this basis, through utilizing triple reversible dynamic motion primitives for the dual arm collaborative trajectory learning, and introducing slave-arm force coupling terms to modify them for trajectory compliance, a master-slave dual-arm learning from demonstration assembly algorithm is provided. Finally, based on two UR5 robots, a series of assembly experiments with three different shapes of pegs and holes are carried out, which confirm the effectiveness of the proposed method.
对于小间隙的钉孔装配任务,传统的机器人轨迹生成方法严重依赖专家知识,复杂且成本高。相比之下,从演示方法中学习不需要专家知识,并且可以使机器人快速学习和编码装配轨迹。然而,由于装配过程中接触状态丰富,容易干扰和协作约束,双臂演示装配学习仍然是一个具有挑战性的任务。为此,本文首先提出了一种新的动态运动原语方法,该方法具有全局渐近稳定性和可逆性,可以随时切换轨迹生成过程的正反向,以缓解干扰问题。然后,提出了一种基于三位置可逆动态运动基元的统一简洁的机器人位姿同步描述方法。在此基础上,利用三可逆动态运动原语进行双臂协同轨迹学习,并引入从臂力耦合项对其进行修正以达到轨迹顺应性,提出了一种主从双臂演示装配学习算法。最后,以2台UR5机器人为例,进行了3种不同形状的钉孔装配实验,验证了所提方法的有效性。
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引用次数: 0
A reinforcement learning-based metaheuristic approach to address the dynamic scheduling problem in cloud manufacturing with task cancellation 一种基于强化学习的元启发式方法解决带有任务取消的云制造动态调度问题
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-10-09 DOI: 10.1016/j.rcim.2025.103160
Atefeh Rajabi-Kafshgar , Mostafa Hajiaghaei-Keshteli , Mohammad Reza Mohammad Aliha
Recent developments in cloud manufacturing (CMg) have highlighted the need for efficient task scheduling and resource allocation in distributed and dynamic environments. To the best of our knowledge, existing studies have not considered dynamic events such as task cancellation, which can lead to resource inefficiencies and disrupt the initial schedule. To address this gap, this paper introduces a novel dynamic task scheduling and service allocation (DTSSA) problem in CMg that considers task cancellation. The proposed model considers logistics time and different arrival times, which directly impact the tasks’ completion times. Furthermore, a reinforcement learning-based genetic algorithm is developed to tackle the NP-hardness of the model and solve medium- and large-scale problems in a reasonable time. The algorithm dynamically selects search operators using the Q-learning algorithm and applies a ε-greedy approach to improve search capabilities. In this regard, first, the metaheuristic algorithms’ parameters are tuned by the Taguchi method. The proposed algorithms were evaluated using 30 benchmark instances from the literature, as well as example cases inspired by existing studies. Next, the mathematical model is evaluated by implementing small-scale examples using GAMS software. Then, the algorithms are compared with not only some well-known metaheuristic algorithms but also recently developed metaheuristic algorithms using statistical tests and several test problems of different sizes. Additionally, results show that the rescheduling problem provides up to 8.7% better solutions on average than the initial schedule. Lastly, the model's sensitivity analysis reveals that the longer the processing time and logistic time, the longer the maximum completion time for scheduling and rescheduling.
云制造(CMg)的最新发展突出了在分布式和动态环境中高效任务调度和资源分配的需求。据我们所知,现有的研究没有考虑到动态事件,如任务取消,这可能导致资源效率低下,扰乱初始计划。为了解决这一问题,本文引入了一种考虑任务取消的动态任务调度和服务分配(DTSSA)问题。该模型考虑了物流时间和不同的到达时间,它们直接影响任务的完成时间。在此基础上,提出了一种基于强化学习的遗传算法来解决模型的np -硬度问题,并在合理的时间内解决中、大规模问题。该算法采用Q-learning算法动态选择搜索算子,并采用ε-greedy方法提高搜索能力。为此,首先采用田口法对元启发式算法的参数进行了调优。使用文献中的30个基准实例以及受现有研究启发的示例案例对所提出的算法进行了评估。其次,利用GAMS软件实现小尺度算例,对数学模型进行了评估。然后,利用统计检验和几个不同规模的检验问题,将这些算法与一些知名的元启发式算法以及最近发展起来的元启发式算法进行了比较。此外,结果表明,重新调度问题提供了高达8.7%的解决方案比初始调度平均。最后,模型的敏感性分析表明,加工时间和物流时间越长,调度和重调度的最大完成时间越长。
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引用次数: 0
Robotic disassembly of snap-fit plug connectors in end-of-life electric vehicle batteries 机器人拆卸报废电动汽车电池中的卡扣式插头连接器
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-11-21 DOI: 10.1016/j.rcim.2025.103183
Jun Huang , Quanyong Huang , Yuqin Zeng , Muyao Tan , Zhenfeng Peng , Huawei Song , Xiuyi Ao , Duc Pham
Disassembly is the first step in the remanufacturing of End-of-Life (EoL) Electric Vehicle (EV) batteries. Currently, many disassembly procedures for EV batteries are performed by human operators. Robotic disassembly of EV batteries is essential for increasing the efficiency of the process. A common operation in EV battery disassembly is removing plug connectors. This paper introduces a new method for automating the disassembly of a snap-fit plug connector using a specially designed tool. A control strategy combining force and position was implemented. Experiments were performed on a single connector to investigate and validate the proposed method for disassembling snap-fit plug connectors. The results show that the success rate and integrity rate of the method were both 100 % across 100 tests. Finally, the paper presents a case study on disassembling snap-fit plug connectors in an EV battery. The case study shows that the disassembly approach is feasible and practical, and it can facilitate the automated disassembly of EV batteries.
拆卸是报废电动汽车(EV)电池再制造的第一步。目前,电动汽车电池的许多拆卸过程都是由人工操作的。电动汽车电池的机器人拆卸对于提高该过程的效率至关重要。拆卸电动汽车电池的常见操作是拆卸插头连接器。本文介绍了一种利用特殊设计的工具自动拆卸卡箍式插头连接器的新方法。采用力位相结合的控制策略。在单个连接器上进行了实验,以研究和验证所提出的拆卸卡扣式插头连接器的方法。结果表明,在100次测试中,该方法的成功率和完整性均为100%。最后,本文给出了一个拆卸电动汽车电池卡扣式插头连接器的案例研究。实例研究表明,该拆卸方法可行、实用,可为电动汽车电池的自动拆卸提供便利。
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引用次数: 0
Inverse calibration of kinematic error for parallel kinematic mechanism based on deviation of multi-DOF formed component 基于多自由度成形件偏差的并联机构运动误差逆标定
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-09-04 DOI: 10.1016/j.rcim.2025.103116
Bo Huang , Xinghui Han , Fangyan Zheng , Lin Hua , Wuhao Zhuang
In the multi-DOF forming process, it is critical to calibrate kinematic error for forming machine with parallel kinematic mechanism (PKM). However, on one hand, the detection process of kinematic error is complex due to the limited workspace and highly dynamic forming process. On the other hand, the kinematic error sources of forming machine are diverse and thus the kinematic error modeling is complex. So, this paper proposes a novel inverse calibration method of kinematic error for PKM based on deviation of multi-DOF formed thin-wall and high-rib component (THC), which is convenient and efficient. Firstly, the minimal error model of PKM is established based on screw theory, in which the minimal 108 kinematic errors are used to represent multi-error sources and the mapping relationship between 108 kinematic errors and upper die motion error is established. Then, the deviation prediction model of multi-DOF formed THC is established by the upper die motion error. It is found that 108 kinematic errors have different sensitivities to the upper die motion error and the distribution of multi-DOF formed THC deviation. Based on the above mechanism, the optimal calibration points on multi-DOF formed THC are planned. The inverse mapping relationship between the deviation of calibration points on THC and the upper die motion error is established, and the inverse calibration of kinematic error for PKM is realized. Finally, multi-DOF forming experiments of THC are carried out, and the deviation of formed THC without inverse calibration is -90∼384 μm. After the inverse calibration, the deviation of formed THC with optimal calibration points is -17∼84 μm while the deviation of formed THC with random calibration points is -29∼131 μm. That is, the accuracy of formed THC with inverse calibration is improved by about 3∼4 times compared to that without inverse calibration. Further, the accuracy of formed THC with optimal calibration points is significantly improved by about 37% compared to that with random calibration points. This research demonstrates that the proposed convenient and efficient inverse calibration method of kinematic error for PKM based on deviation of multi-DOF formed THC is reasonable.
在多自由度成形过程中,利用并联运动机构对成形机的运动误差进行标定是关键。然而,一方面,由于工作空间有限和成形过程高度动态,运动误差检测过程复杂。另一方面,由于成型机的运动学误差来源多样,运动学误差建模复杂。为此,本文提出了一种基于多自由度成形薄壁高肋构件(THC)的运动学误差逆标定方法,该方法简便、高效。首先,基于螺旋理论建立了PKM的最小误差模型,以最小的108个运动误差表示多误差源,建立了108个运动误差与上模运动误差的映射关系;然后,利用上模运动误差建立了多自由度成形THC的误差预测模型。研究发现,108个运动误差对上模运动误差和多自由度形成的THC偏差分布有不同的敏感性。在此基础上,规划了多自由度成形THC的最优标定点。建立了THC标定点偏差与上模运动误差的逆映射关系,实现了PKM运动误差的逆标定。最后,进行了多自由度成形实验,未经反校正的成形THC误差为-90 ~ 384 μm。经反定标后,最优定标点形成的THC偏差为-17 ~ 84 μm,随机定标点形成的THC偏差为-29 ~ 131 μm。也就是说,与不进行反校准相比,采用反校准的形成的THC的精度提高了约3 ~ 4倍。此外,与随机标定点相比,优化标定点可显著提高成型THC的精度约37%。研究表明,提出的基于多自由度成形THC偏差的PKM运动学误差逆标定方法是合理的。
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引用次数: 0
Digital twin and AI-driven robotic embodied control system: a novel adaptive learning and decision optimization method 数字孪生和人工智能驱动的机器人嵌入控制系统:一种新的自适应学习和决策优化方法
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-09-17 DOI: 10.1016/j.rcim.2025.103138
Hao Li, Xingyou He, Yonglei Wu, Gen Liu, Haoqi Wang, Xiaoyu Wen, Linli Li
Traditional robot control methods often encounter limitations such as lengthy development cycles and insufficient flexibility when addressing dynamic production environments and complex task requirements. To overcome these challenges, this paper constructs an integrated robot embodied control (EC) system that organically combines digital twins (DT), machine vision, and deep reinforcement learning (DRL). The method follows a closed-loop perception-decision-action framework. First, machine vision senses the environment in real time and precisely maps the 3D pose of the target object to the DT space. Second, DRL is conducted in the DT environment for training and strategy optimization. Finally, continuous state synchronization between the physical robot and the DT enables cross-environment policy transfer and online optimization. Taking the robotic arm pressing an emergency stop button as a representative task scenario, experimental results show that the system achieves a task success rate of 88% in the DT environment and 73% in the real physical environment, which was further improved to 76% through fine-tuning. In an extended lamp switch task, the success rate reached 79%, further verifying the generality and cross-environment adaptability of the framework. Overall, this integrated system significantly enhances the intelligence and operational efficiency of robotic systems, demonstrating its potential for achieving programming-free autonomous control in complex industrial environments.
传统的机器人控制方法在处理动态生产环境和复杂的任务要求时,往往会遇到开发周期长、灵活性不足等局限性。为了克服这些挑战,本文构建了一个有机结合数字孪生(DT)、机器视觉和深度强化学习(DRL)的集成机器人体现控制(EC)系统。该方法遵循闭环感知-决策-行动框架。首先,机器视觉实时感知环境,并将目标物体的3D姿态精确映射到DT空间。其次,在DT环境下进行DRL,进行训练和策略优化。最后,物理机器人和DT之间的连续状态同步实现了跨环境策略传递和在线优化。以机械臂按下紧急停止按钮为代表性任务场景,实验结果表明,该系统在DT环境下的任务成功率为88%,在真实物理环境下的任务成功率为73%,通过微调进一步提高到76%。在扩展的灯开关任务中,成功率达到79%,进一步验证了框架的通用性和跨环境适应性。总体而言,该集成系统显著提高了机器人系统的智能和运行效率,展示了其在复杂工业环境中实现无编程自主控制的潜力。
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引用次数: 0
A vision-based self-calibration method for industrial robots using variable pose constraints 一种基于视觉的工业机器人变位姿自标定方法
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-09-23 DOI: 10.1016/j.rcim.2025.103142
Yiyang Feng, Jianhui He, Jingbo Luo, Zaojun Fang, Chi Zhang, Guilin Yang
Among various geometrical constraints employed for robot self-calibration, the pose constraint by simultaneously restricting the position and orientation of the robot end-effector is the most comprehensive and effective constraint. However, as it is difficult to control the robot to precisely satisfy the pose constraints, a vision-based robot pose measurement system is designed, which mainly consists of two monochrome cameras fixed onto an adjustment stage and a pose target module mounted on the robot end-effector. Variable pose constraints are established when two or more robot poses are measured with two monochrome cameras at a fixed location. Based on the product-of-exponential (POE) formula, a new self-calibration model is formulated for industrial robots using variable pose constraint in which the robot pose errors are expressed in its tool frame and the position errors are decoupled from the orientation measurement errors. Therefore, the proposed self-calibration model is more accurate and robust than the conventional calibration model, in which the robot pose errors are expressed in its base frame and the position errors are coupled with the orientation measurement errors. Both simulations and experiments are conducted to validate the effectiveness of the proposed self-calibration method. Experimental results on the Aubo i5 robot demonstrate that after calibration, the average position error is reduced from 2.47 mm to 0.77 mm, and the average orientation error is reduced from 0.016 rad to 0.0039 rad.
在用于机器人自标定的各种几何约束中,同时约束机器人末端执行器位置和姿态的位姿约束是最全面、最有效的约束。然而,由于难以控制机器人精确满足姿态约束,设计了一种基于视觉的机器人姿态测量系统,该系统主要由固定在调节台上的两个单色摄像机和安装在机器人末端执行器上的姿态目标模块组成。当在固定位置用两台单色相机测量两个或多个机器人的姿态时,建立可变姿态约束。基于指数积(POE)公式,建立了一种基于变位姿约束的工业机器人自标定模型,该模型将机器人位姿误差表示在其刀架中,并将位置误差与姿态测量误差解耦。因此,所提出的自校准模型比传统的机器人位姿误差在基架中表示、位置误差与姿态测量误差耦合的自校准模型更准确、鲁棒。仿真和实验验证了所提出的自标定方法的有效性。在Aubo i5机器人上的实验结果表明,标定后的平均位置误差从2.47 mm减小到0.77 mm,平均方位误差从0.016 rad减小到0.0039 rad。
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引用次数: 0
Multi-agent deep reinforcement learning for low-carbon flexible job shop scheduling with variable sublots 可变子批低碳柔性作业车间调度的多智能体深度强化学习
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-11-12 DOI: 10.1016/j.rcim.2025.103180
Chuanzhao Yu, Youshan Liu, Chunjiang Zhang, Weiming Shen
As manufacturing shifts toward greener and more intelligent paradigms, traditional scheduling approaches are increasingly inadequate for meeting both operational efficiency and sustainability demands. The Low-Carbon Flexible Job Shop Scheduling Problem with Variable Sublots (LC-FJSP-VS) introduces significant complexity due to the need to simultaneously coordinate sublot sizing, machine selection, and carbon-aware objectives under dynamic disturbances. To address these challenges, this paper proposes a hybrid scheduling framework that integrates Multi-Agent Deep Reinforcement Learning (MADRL) with a bi-objective Mixed-Integer Linear Programming (MILP) model. A hierarchical decision-making architecture is designed, where in the operation-level agent performs real-time job dispatching, and the machine-level agent adjusts processing speeds and optimization preferences to guide sublot-level MILP scheduling. Machine failure events are stochastically simulated to emulate realistic disruptions, testing the system’s adaptability and robustness. Experimental results on extended benchmark datasets show that the proposed method significantly outperforms classical dispatching rules and advanced metaheuristics in terms of Hypervolume (HV), effectively balancing makespan and carbon emissions. This work demonstrates the feasibility and advantages of intelligent, low-carbon scheduling systems and provides a foundation for scalable and disturbance-resilient production planning.
随着制造业向更绿色和更智能的范式转变,传统的调度方法越来越不能满足运营效率和可持续性需求。具有可变子批的低碳柔性作业车间调度问题(LC-FJSP-VS)由于需要同时协调子批规模、机器选择和动态干扰下的碳意识目标,引入了显著的复杂性。为了解决这些挑战,本文提出了一种混合调度框架,该框架将多智能体深度强化学习(MADRL)与双目标混合整数线性规划(MILP)模型相结合。设计了一种分层决策体系结构,其中操作级代理执行实时作业调度,机器级代理调整处理速度和优化偏好,指导子批次级MILP调度。随机模拟机器故障事件,模拟现实中断,测试系统的适应性和鲁棒性。在扩展基准数据集上的实验结果表明,该方法在Hypervolume (HV)方面明显优于经典调度规则和先进的元启发式算法,有效地平衡了完工时间和碳排放。这项工作证明了智能、低碳调度系统的可行性和优势,并为可扩展和抗干扰生产计划提供了基础。
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引用次数: 0
Intelligent tool wear monitoring approach in milling of titanium alloys 钛合金铣削中刀具磨损智能监测方法
IF 11.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-04-01 Epub Date: 2025-11-11 DOI: 10.1016/j.rcim.2025.103181
Shucai Yang, Runjie Jiang, Zekun Song, Dongqi Yu
Tool wear exerts a critical influence on machining stability and workpiece quality, making its accurate, intelligent monitoring indispensable for preventing tool failure and ensuring product consistency. Although direct assessment via wear imagery is possible, it requires interrupting the machining process and thus is impractical for real‐time production. A more viable solution is to leverage in‐process signals—such as vibration—to enable continuous monitoring. Here, we present a Signal processing method that Beluga whale optimization‐Successive variational mode decomposition (BWO‐SVMD) for noise suppression, followed by the S‐transform to produce high‐resolution time–frequency representations. Based on these denoised spectrograms, we develop an intelligent monitoring model that integrates a multi‐scale convolutional neural network (MSCNN), long short‐term memory (LSTM) units, and a channel–spatial attention mechanism. Experimental results demonstrate that our model achieves 96.25 % classification accuracy, a Kappa coefficient of 0.9686, and a total computation time of 320.64 s. Compared with CNN‐LSTM‐Attention, MSCNN‐Attention, and MSCNN‐LSTM baselines, it improves average accuracy by 1.89 %, 8.02 %, and 6.67 % and Kappa by 0.0732, 0.1374, and 0.2009, respectively. Although training time increases by 10.2 %–14.2 %, the substantial gains in predictive performance justify the additional computational cost.
刀具磨损对加工稳定性和工件质量有着至关重要的影响,刀具磨损的准确、智能监测是防止刀具失效和保证产品一致性不可或缺的手段。虽然通过磨损图像进行直接评估是可能的,但它需要中断加工过程,因此不适合实时生产。一个更可行的解决方案是利用过程中的信号(如振动)来实现连续监测。在这里,我们提出了一种信号处理方法,即白鲸优化-连续变分模态分解(BWO - SVMD)用于噪声抑制,然后进行S -变换以产生高分辨率时频表示。基于这些去噪的频谱图,我们开发了一个集成了多尺度卷积神经网络(MSCNN)、长短期记忆(LSTM)单元和通道空间注意机制的智能监测模型。实验结果表明,该模型的分类准确率为96.25%,Kappa系数为0.9686,总计算时间为320.64 s。与CNN - LSTM - Attention、MSCNN - Attention和MSCNN - LSTM基线相比,平均准确率分别提高了1.89%、8.02%和6.67%,Kappa分别提高了0.0732、0.1374和0.2009。虽然训练时间增加了10.2% - 14.2%,但预测性能的显著提高证明了额外的计算成本是合理的。
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引用次数: 0
期刊
Robotics and Computer-integrated Manufacturing
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