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Enhanced hyper-node faster relational YOLO dwarf mongoose graph attention network for multi-target detection in smart IoT edge-cloud surveillance systems 智能物联网边缘云监控系统中多目标检测的增强超节点更快关系型YOLO矮猫鼬图注意网络
IF 10.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-05-01 Epub Date: 2026-01-31 DOI: 10.1016/j.jii.2026.101086
Aishwarya D, R.I. Minu
The demand for multi-target detection within an IoT-based edge-cloud surveillance system is increasing. This is particularly the case in real-world scenarios where there could be several targets in varied lighting and several very mobile objects. Even with the best possible models, object detection models collapse when presented with the randomness of real-world environments, including clutter and the detection of multiple objects within a scene. A new innovation, the Enhanced Hyper-node Faster Relational YOLO Dwarf Mongoose (IHnode-FRYDM) Graph Attention Network (GAN) for multi-target detection in IoT-based innovative edge-cloud surveillance systems is presented herein. The new method uses the PASCAL VOC dataset to create a more efficient detection framework. It starts with the Iterative Dependable Peak-Aware Directed Filtering (IDPADF), a newer technique for pre-processing images, that considerably improves both the input image and feature representation quality. The real detection then executes the Faster-YOLO architecture, which is essential since it strives to balance speed and accuracy for real-time IoT operations. Moreover, it uses a Hyper-node Relational Graph Attention Network (HRGAT) to perform effective relational feature learning and correct identification of multiple targets in intricate and dynamic environments. IDMO's performance maximizes the rate of convergence and stability of the model to meet the computational loads of IoT edge devices. The resultant evaluation provides a mAP of 99.6% and an F1-score of 99.5%, while offering a processing time reduction of 32% in comparison to other traditional approaches. The results suggest that the new framework can be successfully deployed into new IoT edge-cloud surveillance processes with an efficient and accurate process to fulfill technical demands of multi-target surveillance applications.
在基于物联网的边缘云监控系统中,对多目标检测的需求正在增加。这在现实世界的场景中尤其如此,在不同的照明和几个非常移动的物体中可能有几个目标。即使使用最好的模型,对象检测模型在面对现实世界环境的随机性时也会崩溃,包括场景中的杂乱和多个对象的检测。本文提出了一种新的创新,用于基于物联网的创新型边缘云监控系统中多目标检测的增强超节点更快关系YOLO矮猫鼬(IHnode-FRYDM)图注意网络(GAN)。新方法使用PASCAL VOC数据集来创建一个更有效的检测框架。首先是迭代可靠的峰值感知定向滤波(IDPADF),这是一种用于图像预处理的新技术,它大大提高了输入图像和特征表示的质量。然后,实际检测执行Faster-YOLO架构,这是必不可少的,因为它努力平衡实时物联网操作的速度和准确性。利用超节点关系图注意网络(hypernode Relational Graph Attention Network, HRGAT)在复杂动态环境中进行有效的关系特征学习和多目标的正确识别。IDMO的性能最大限度地提高了模型的收敛速度和稳定性,以满足物联网边缘设备的计算负载。由此产生的评估提供了99.6%的mAP和99.5%的f1分数,同时与其他传统方法相比,处理时间减少了32%。结果表明,新框架可以成功部署到新的物联网边缘云监控流程中,流程高效准确,满足多目标监控应用的技术需求。
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引用次数: 0
Research on multi-twin collaborative system for human-machine collaborative manufacturing 面向人机协同制造的多孪生协同系统研究
IF 10.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-05-01 Epub Date: 2026-02-04 DOI: 10.1016/j.jii.2026.101092
Lili Dong , Tianliang Hu , Keyi Zhou , Tianyi Sun , Songhua Ma
With the development of intelligent manufacturing towards deep flexibility, intelligence, and human-centricity, human-machine collaborative manufacturing (HMCM) has become a crucial mode for enhancing manufacturing system effectiveness. To realize the vision of human-machine integration, it is necessary to construct a collaborative architecture that supports deep integration of multiple entities, which can not only fully leverage the unique advantages of different entities, but also realize mutual understanding and dynamic collaboration among them. Digital twin (DT), as an enabling technology for cyber-physical fusion, provides a feasible path towards this goal. Although current research has made progress in the digital modeling and behavior characterization of entities, there remains a deficiency in dynamic interaction and collaborative decision mechanisms among multi-twin models, which is difficult to support for system-level human-machine integration. To address this issue, a multi-twin collaborative system architecture for HMCM is proposed. Firstly, the architecture for HMCM is designed, which includes the human digital twin (HDT), robot digital twin (RDT), equipment digital twin (EDT), product digital twin (PDT), and collaborative application interaction center (CAIC). Correspondingly, an experimental platform for rotary vector (RV) reducer assembly is designed to provide empirical support. Secondly, a multi-twin collaborative system for human-machine collaborative assembly is implemented. Finally, the feasibility and effectiveness of the proposed architecture are verified by this assembly experiment. The experimental results demonstrate that the proposed architecture facilitates the fundamental transformation of the collaborative robot from a "mechanical executor" to an "intuitive collaborator", providing a reusable technical pathway and system architecture for realizing deep human-machine integration in intelligent manufacturing.
随着智能制造向深度柔性、智能化、以人为中心的方向发展,人机协同制造(HMCM)已成为提高制造系统效能的重要模式。要实现人机集成的愿景,需要构建支持多实体深度集成的协同架构,既能充分发挥不同实体的独特优势,又能实现它们之间的相互理解和动态协作。数字孪生(DT)作为网络物理融合的使能技术,为实现这一目标提供了可行的途径。虽然目前的研究在实体的数字化建模和行为表征方面取得了一定的进展,但在多孪生模型之间的动态交互和协同决策机制方面仍存在不足,难以支持系统级人机集成。为了解决这一问题,提出了一种HMCM的多孪生协同系统架构。首先,设计了HMCM的体系结构,包括人数字孪生体(HDT)、机器人数字孪生体(RDT)、设备数字孪生体(EDT)、产品数字孪生体(PDT)和协同应用交互中心(CAIC)。相应地,设计了旋转矢量(RV)减速器总成实验平台,提供了经验支持。其次,实现了多孪生人机协同装配系统。最后,通过装配实验验证了所提架构的可行性和有效性。实验结果表明,该体系结构促进了协作机器人从“机械执行者”向“直觉合作者”的根本性转变,为实现智能制造中人机深度集成提供了可重用的技术路径和系统架构。
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引用次数: 0
Event camera-based high-efficiency transient sparking fault detection in Hall thrusters 基于事件摄像机的霍尔推进器瞬态火花故障高效检测
IF 10.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-05-01 Epub Date: 2026-02-03 DOI: 10.1016/j.jii.2026.101085
Yibo Zhang , Jing Jin , Wenzhe Zheng , Yihao Zhou , Zhucheng Tan , Yan Shen , Chenyang Shi
This paper presents a novel approach to detecting sparking phenomena in Hall thrusters using an event camera. The method addresses challenges associated with propulsion system reliability in the aerospace industry. Hall thrusters, commonly used in commercial satellites and deep space exploration, require reliable operation. The sparking phenomenon, one of the key faults of Hall thrusters, disrupts the normal behavior of the plume and poses multiple risks to thruster operation and mission success. Therefore, detecting sparking is essential. Compared with traditional diagnostic methods, visual sensing achieves finer spatial characterization but frame-based cameras remain limited in dynamic perception and on-orbit practicality. Event cameras, with microsecond-level time resolution, low power consumption, and a wide dynamic range, offer great potential for transient sparking detection. This paper is the first to utilize event cameras for detecting transient sparking in Hall thrusters. A novel detection method based on event rate bursts and ambient diffusion optical flow estimation is proposed. When plume fluctuations cause the event rate to exceed a defined threshold, optical flow computation is triggered for spark verification. Ground experiments show that the method can efficiently detect sparks with an average throughput of 334.77 kHz, achieve 95.7% detection accuracy, and continuously record the spark process. Comparative results with high-speed cameras confirm the superior performance of the event camera. The reliability and scalability of the method are also examined. These advances lay a significant foundation for future on-orbit fault detection and monitoring of Hall thrusters.
本文提出了一种利用事件相机检测霍尔推力器中火花现象的新方法。该方法解决了航空航天工业中与推进系统可靠性相关的挑战。霍尔推进器通常用于商业卫星和深空探测,需要可靠的运行。火花现象是霍尔推进器的主要故障之一,它破坏了羽流的正常行为,给推进器的运行和任务成功带来了多重风险。因此,检测火花是必不可少的。与传统的诊断方法相比,视觉感知可以实现更精细的空间表征,但基于帧的相机在动态感知和在轨实用性方面存在局限性。事件摄像机具有微秒级的时间分辨率,低功耗和宽动态范围,为瞬态火花检测提供了巨大的潜力。本文首次利用事件相机检测霍尔推力器中的瞬态火花。提出了一种基于事件速率突发和环境扩散光流估计的检测方法。当羽流波动导致事件速率超过定义的阈值时,将触发光流计算以进行火花验证。地面实验表明,该方法能有效地检测火花,平均通量为334.77 kHz,检测精度达到95.7%,并能连续记录火花过程。与高速摄像机的对比结果证实了事件摄像机的优越性能。并对该方法的可靠性和可扩展性进行了验证。这些进展为今后霍尔推进器的在轨故障检测和监测奠定了重要基础。
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引用次数: 0
High-level reasoning while low-level actuation in cyber–physical systems: How efficient is it? 网络物理系统中的高级推理和低级驱动:效率有多高?
IF 10.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-05-01 Epub Date: 2026-02-11 DOI: 10.1016/j.jii.2026.101090
Burak Karaduman , Baris Tekin Tezel , Moharram Challenger
The growing complexity of industrial information integration systems requires software technologies that support intelligent behaviour, real-time responsiveness, and efficient development. Despite the proliferation of programming languages and frameworks, there remains a limited amount of empirical evidence to guide engineers in selecting the most suitable tools for developing advanced industrial applications. This study addresses that gap by measuring and comparing worst-case execution time (WCET) and development time across six languages: C++, Java, Jade, Jason, and fuzzy Jason BDI with loosely and tightly coupled integration. These technologies represent a progression from procedural and object-oriented programming to agent-oriented frameworks that support symbolic and fuzzy reasoning. Instead of relying on broad or ambiguous notions such as paradigms or orientation, we adopt a developer-centred approach based on measurable outcomes. Our structured comparative analysis explores how increasing levels of abstraction and reasoning capabilities influence both the time required to develop applications and their runtime performance. By examining these dimensions, we reveal practical trade-offs among development effort and execution efficiency. Our findings demonstrate how different abstraction levels and reasoning mechanisms influence both system performance and engineering effort. These results provide practical insights for designing intelligent, agent-based systems that operate under real-time constraints and complex decision-making processes. The study contributes to the ongoing discourse on software selection in industrial informatisation by providing evidence-based guidance that aligns with integration efficiency, software maintainability, and system responsiveness. This work supports future research into the relationship between language features, development dynamics, and runtime behaviour in the context of industrial-oriented cyber–physical and smart manufacturing systems.
工业信息集成系统日益复杂,需要支持智能行为、实时响应和高效开发的软件技术。尽管编程语言和框架激增,但指导工程师选择最合适的工具来开发高级工业应用程序的经验证据仍然有限。本研究通过测量和比较六种语言的最坏情况执行时间(WCET)和开发时间来解决这一差距:c++、Java、Jade、Jason和模糊Jason BDI,它们具有松散和紧密耦合的集成。这些技术代表了从面向过程和面向对象的编程到支持符号和模糊推理的面向代理的框架的进展。而不是依赖于广泛的或模糊的概念,如范式或方向,我们采用基于可测量结果的以开发人员为中心的方法。我们的结构化比较分析探讨了不断增加的抽象级别和推理能力如何影响开发应用程序所需的时间及其运行时性能。通过检查这些维度,我们揭示了开发工作和执行效率之间的实际权衡。我们的发现证明了不同的抽象层次和推理机制是如何影响系统性能和工程工作的。这些结果为设计在实时约束和复杂决策过程下运行的智能、基于代理的系统提供了实用的见解。该研究通过提供与集成效率、软件可维护性和系统响应性相一致的循证指导,为工业信息化中软件选择的持续讨论做出了贡献。这项工作支持未来在面向工业的网络物理和智能制造系统背景下对语言特性、开发动态和运行时行为之间关系的研究。
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引用次数: 0
Design and Analysis of Aircraft Engine Cable Harness and Electromagnetic Corresponding Characteristics Using Digital Models 基于数字模型的航空发动机电缆线束及其电磁特性设计与分析
IF 15.7 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-22 DOI: 10.1016/j.jii.2026.101110
Shaohong Ding, Minxiang Wei, Kai Yang
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引用次数: 0
Expanding the Cloud: An Integrated Optimization Framework for Distributed Infrastructure Scaling Under Uncertainty 扩展云:不确定性下分布式基础设施扩展的集成优化框架
IF 15.7 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-21 DOI: 10.1016/j.jii.2026.101109
Shuyi Ma, Jin Li, Min Xie
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引用次数: 0
Neuromorphic Computing-Enabled Multimodal Data Fusion for Intelligent Machine Fault Diagnosis 基于神经形态计算的多模态数据融合智能机器故障诊断
IF 15.7 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-15 DOI: 10.1016/j.jii.2026.101108
Xinrui Chen, Xiang Li, Yaguo Lei, Bin Yang, Naipeng Li, Ke Feng
The rapid development of data-driven methods in the past years has significantly improved the performance of machine fault diagnosis. Currently, the mainstream intelligent fault diagnosis approaches are generally based on limited modality data. In real industrial applications, the strict limitation of the data source compromises the flexibility of such methods. In recent years, intelligent modeling with multimodal data has attracted increasing attention in different fields. Multimodal data can also benefit machine fault diagnosis with more complete health condition information. However, the different modalities are usually inconsistent in data structure, which brings significant challenges. Furthermore, current data-driven methods require substantial computational resources for practical deployment, particularly when applied to multimodal data. To address the aforementioned issues, this paper proposes a neuromorphic computing-enabled multimodal data fusion method for intelligent machine fault diagnosis. Multimodal condition monitoring data including vibration, current, etc., are first converted into a unified spiking representation space. Subsequently, dedicated feature extraction modules of each modality are designed to enhance feature extraction efficiency. A generalized multimodal contrastive learning (GMCL) framework is proposed to accurately align data from different modalities. The fault diagnosis model is developed with the neuromorphic computing framework, which not only ensures high diagnostic reliability but also significantly reduces power consumption. Compared to mainstream methods, the proposed approach achieves at least 88% optimization in response latency. The experimental results on two multimodal machine condition monitoring datasets demonstrate the effectiveness of the proposed method, which provides a promising solution for deployment in real industrial fault diagnosis applications.
近年来数据驱动方法的迅速发展,极大地提高了机器故障诊断的性能。目前主流的智能故障诊断方法一般都是基于有限模态数据。在实际的工业应用程序中,数据源的严格限制损害了这些方法的灵活性。近年来,基于多模态数据的智能建模越来越受到各个领域的关注。多模态数据还可以提供更完整的健康状况信息,有利于机器故障诊断。然而,不同的模态通常在数据结构上不一致,这带来了很大的挑战。此外,当前的数据驱动方法需要大量的计算资源才能进行实际部署,特别是在应用于多模态数据时。针对上述问题,本文提出了一种基于神经形态计算的多模态数据融合方法,用于智能机器故障诊断。首先将振动、电流等多模态状态监测数据转换成统一的尖峰表示空间。随后,设计了各模态专用的特征提取模块,提高了特征提取效率。提出了一种广义多模态对比学习(GMCL)框架来精确对齐不同模态的数据。采用神经形态计算框架建立故障诊断模型,既保证了诊断的高可靠性,又显著降低了功耗。与主流方法相比,该方法在响应延迟方面至少优化了88%。在两个多模态机器状态监测数据集上的实验结果表明了该方法的有效性,为实际工业故障诊断应用提供了一种有前景的解决方案。
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引用次数: 0
Industrial information integration for closed-loop viticultural supply chains: Multi-objective optimization with reinforcement learning and benders decomposition 葡萄种植闭环供应链的产业信息集成:基于强化学习和弯曲分解的多目标优化
IF 15.7 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-11 DOI: 10.1016/j.jii.2026.101106
Zahra Seyedzadeh, Mohammad Saeed Jabalameli, Ehsan Dehghani
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引用次数: 0
Ensemble of regressors for gross error identification: an optimisation approach 总体误差识别的回归集合:一种优化方法
IF 15.7 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-09 DOI: 10.1016/j.jii.2026.101105
Daniel Dobos, Tien Thanh Nguyen, Truong Dang, Eyad Elyan
Accurate measurement is essential for reliable process monitoring and control in the chemical industry. However, measurement systems are often affected by gross errors caused by sensor faults, leaks, or transmission issues. These errors can severely degrade data reconciliation and decision-making, making robust detection methods critical for industrial reliability. In this paper, we present a new approach to gross error detection using an ensemble of machine learning regressors. The method combines predictions from a diverse set of 51 regression models and selects the most effective subset using optimisation algorithms. We explore three nature-inspired optimisers - Genetic Algorithm (GA), Particle Swarm Optimization (PSO), and Differential Evolution (DE) - to find the best combination of models. The selected ensemble is then used to predict the magnitude of gross errors in process measurements. We evaluate the approach using ten benchmark datasets with artificially injected errors. Our results show that the proposed method outperforms traditional techniques and individual regressors when using optimisation for ensemble selection. These findings highlight the practical potential of optimised heterogeneous ensembles for improving gross error detection in industrial applications.
在化学工业中,精确的测量对于可靠的过程监测和控制至关重要。然而,测量系统经常受到由传感器故障、泄漏或传输问题引起的严重误差的影响。这些错误会严重降低数据协调和决策的质量,从而使健壮的检测方法对工业可靠性至关重要。在本文中,我们提出了一种使用机器学习回归量集合的新方法来检测粗误差。该方法结合了来自51个不同回归模型的预测,并使用优化算法选择最有效的子集。我们探索了三种受自然启发的优化器——遗传算法(GA)、粒子群优化(PSO)和差分进化(DE)——以找到模型的最佳组合。然后使用所选的集合来预测过程测量中总误差的大小。我们使用带有人为注入误差的10个基准数据集来评估该方法。我们的结果表明,当使用集成选择优化时,所提出的方法优于传统技术和单个回归。这些发现突出了优化异构集成在工业应用中改善粗误差检测的实际潜力。
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引用次数: 0
A thorough assessment of the non-IID data impact in federated learning 对联邦学习中非iid数据影响的全面评估
IF 10.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2026-03-01 Epub Date: 2025-12-27 DOI: 10.1016/j.jii.2025.101052
Daniel M. Jimenez-Gutierrez, Mehrdad Hassanzadeh, Aris Anagnostopoulos, Ioannis Chatzigiannakis, Andrea Vitaletti
Federated learning (FL) allows collaborative machine learning (ML) model training among decentralized clients’ information, ensuring data privacy. The decentralized nature of FL deals with non-independent and identically distributed (non-IID) data. This open problem has notable consequences, such as decreased model performance and longer convergence times. Despite its importance, experimental studies systematically addressing all types of data heterogeneity (a.k.a. non-IIDness) remain scarce. This paper aims to fill this gap by assessing and quantifying the non-IID effect through an empirical analysis. We use the Hellinger Distance (HD) to measure differences in distribution among clients. Our study benchmarks five state-of-the-art strategies for handling non-IID data, including label, feature, quantity, and spatiotemporal skews, under realistic and controlled conditions. This is the first comprehensive analysis of the spatiotemporal skew effect in FL. Our findings highlight the significant impact of label and spatiotemporal skew non-IID types on FL model performance, with notable performance drops occurring at specific HD thresholds. The FL performance is also heavily affected, mainly when the non-IIDness is extreme. Thus, we provide recommendations for FL research to tackle data heterogeneity effectively. Our work represents the most extensive examination of non-IIDness in FL, offering a robust foundation for future research.
联邦学习(FL)允许在分散的客户信息中进行协作机器学习(ML)模型训练,从而确保数据隐私。FL的分散特性处理非独立和同分布(non-IID)数据。这个开放的问题有显著的后果,比如降低模型性能和延长收敛时间。尽管它很重要,但系统地解决所有类型的数据异质性(又名非数据异质性)的实验研究仍然很少。本文旨在通过实证分析,对非iid效应进行评估和量化,填补这一空白。我们使用海灵格距离(HD)来衡量客户之间分布的差异。我们的研究在现实和受控的条件下,对处理非iid数据的五种最先进的策略进行了基准测试,包括标签、特征、数量和时空倾斜。这是对FL时空倾斜效应的首次综合分析。我们的研究结果强调了标签和时空倾斜非iid类型对FL模型性能的显著影响,在特定的HD阈值下,性能会出现显著下降。FL的性能也受到很大的影响,主要是在非idness非常大的情况下。因此,我们为FL研究提供了有效解决数据异质性的建议。我们的工作代表了对FL非iidness最广泛的检查,为未来的研究提供了坚实的基础。
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引用次数: 0
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Journal of Industrial Information Integration
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