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| 1 | Digital Twins and Cyber Physical Systems toward Smart Manufacturing and Industry 4.0:Correlation and Comparison显示文摘State-of-the-art technologies such as the Internet of Things(IoT),cloud computing(CC),big data analytics(BDA),and artificial intelligence(AI)have greatly stimulated the development of smart manufacturing.An important prerequisite for smart manufacturing is cyber-physical integration,which is increasingly being embraced by manufacturers.As the preferred means of such integration,cyber-physical systems(CPS)and digital twins(DTs)have gained extensive attention from researchers and practitioners in industry.With feedback loops in which physical processes affect cyber parts and vice versa,CPS and DTs can endow manufacturing systems with greater efficiency,resilience,and intelligence.CPS and DTs share the same essential concepts of an intensive cyber-physical connection,real-time interaction,organization integration,and in-depth collaboration.However,CPS and DTs are not identical from many perspectives,including their origin,development,engineering practices,cyber-physical mapping,and core elements.In order to highlight the differences and correlation between them,this paper reviews and analyzes CPS and DTs from multiple perspectives. | Fei Tao Qinglin Qi Lihui Wang A.Y.C.Nee | 2019 | Engineering2019，5，4： | 84 |
| 2 | Novel AR-based interface for human-robot interaction and visualization显示文摘Intuitive and efficient interfaces for humanrobot interaction(HRI) have been a challenging issue in robotics as it is essential for the prevalence of robots supporting humans in key areas of activities.This paper presents a novel augmented reality(AR) based interface to facilitate human-virtual robot interaction.A number of human-virtual robot interaction methods have been formulated and implemented with respect to the various types of operations needed in different robotic applications.A EucUdean distance-based method is developed to assist the users in the interaction with the virtual robot and the spatial entities in an AR environment.A monitor-based visualization mode is adopted as it enables the users to perceive the virtual contents associated with different interaction methods,and the virtual content augmented in the real environment is informative and useful to the users during their interaction with the virtual robot.Case researches are presented to demonstrate the successful implementation of the AR-based HRI interface in planning robot pick-and-place operations and path following operations. | H.C.Fang S.K.Ong A.Y.C.Nee | 2014 | Advances in Manufacturing2014，2，4： | 7 |
| 3 | Web-Based Fault Diagnostic and Learning System显示文摘 | S.K.Ong N.An A.Y.C.Nee | | 0，，： | 1 |
| 4 | State-of-the-art survey on digital twin implementations显示文摘Digital twin(DT)has garnered attention in both industry and academia.With advances in big data and internet of things(IoTs)technologies,the infrastructure for DT implementation is becoming more readily available.As an emerging technology,there are both potential and challenges.DT is a promising methodology to leverage the modern data explosion to aid engineers,managers,healthcare experts and politicians in managing production lines,patient health and smart cities by providing a comprehensive and high fidelity monitoring,prognostics and diagnostics tools.New research and surveys into the topic are published regularly,as interest in this technology is high although there is a lack of standardization to the definition of a DT.Due to the large amount of information present in a DT system and the dual cyber and physical nature of a DT,augmented reality(AR)is a suitable technology for data visualization and interaction with DTs.This paper seeks to classify different types of DT implementations that have been reported,highlights some researches that have used AR as data visualization tool in DT,and examines the more recent approaches to solve outstanding challenges in DT and the integration of DT and AR. | Y.K.Liu S.K.Ong A.Y.C.Nee | 2022 | Advances in Manufacturing2022，10，1： | 1 |
| 5 | Optimum calibration of a parallel kinematic manipulator using digital indicators显示文摘This paper presents a calibration method for parallel manipulators using a measurement system specially installed on an external fixed frame.The external fixed frame is important as an error reference for calibration in certain operations,such as in the configuration of a parallel manipulator functioning as a machine tool where the workpiece is fixed to a worktable.The pose of the end-effector is measured using three digital indicators installed on the external fixed frame.To enable measurement,the end-effector is assumed to be a plane large enough that all digital indicators could touch.The error is defined as the difference between the theoretical and actual readings of the digital indicators.The geometric parameters of the parallel manipulator are optimized to minimize this error.This calibration method is low cost and feasible for compensating geometric parameter errors for a parallel manipulator.Optimal pose selection for the calibration is achieved using a swarm intelligence search algorithm.The method is implemented on a prototype of a six degrees-of-freedom(DOFs) Gough-Stewart platform constructed to function as a machine tool. | V.B.Saputra S.K.Ong A.Y.C.Nee | 2014 | Advances in Manufacturing2014，2，3： | 1 |
| 6 | Multi-User NC Machining Simulation over the WWW显示文摘 | Z.M.Qiu Y.P.Chen Z.D.Zhou S K.On g A.Y.C.Nee | | 0，，01： | 1 |
| 7 | Augmented Reality Aided Assembly Design and Planning显示文摘 | S.K.Ong Y.Pang A.Y.C.Nee | | 0，，01： | 1 |
| 8 | Assembly Feature Design in an Augmented Reality Environment显示文摘 | Y.Pang A.Y.C.Nee S.K.Ong M.LYuan K.Youcef-Toumi | | 0，，01： | 1 |
| 9 | Web-based Fault Diagnostic and Learning System显示文摘 | S.K.ONG N.AN A.Y.C.NEE | | 0，，18： | 1 |
| 10 | PC机的计算机辅助板材加工显示文摘本文描述了有关开发PC机的计算机辅助板材加工的各种问题。开发了坯料排样程序后,又进行了坯料的平面展开与连续模的设计。再努力将这些程序联到一起形成连续模设计软件包。这程序包含一系列专家设计原则,并具有连续模自动排样的算法。它具有下列特点:自动排样;设计并优化凸模的形状以采用商晶化的标准件;综合考虑凸模干涉与最小凹模孔间距,自动安排凸模及确定模板结构等。该软件为连续模设计提供了一个优秀的辅助工具,且因是使用PC机,所以很多小型模具厂均能购买。 | A.Y.C.NEE 高建明 | 1991 | 模具技术1991，，2： | 0 |
| 11 | 3D bare-hand interactions enabling ubiquitous interactions with smart objects显示文摘Ubiquitous augmented reality(UAR)implementation can benefit smart shop floor operations significantly.UAR from a user's first-person view can support and provide the user with suitable and comprehensive information without him/her being distracted from ongoing tasks.A natural hand-based interaction interface,namely,a mobile bare-hand interface(MBHI),is proposed to assist a user in exploring and navigating a large amount of information for a task in the user's first-person view.The integration of a smart shop floor and UAR-based MBHI is particularly challenging.A real shop floor environment is composed of challenging conditions for the implementation of UAR,e.g.,messy backgrounds and significant changes in illumination conditions.Meanwhile,the MBHI is required to provide precise and quick responses to minimize the dificulty of a user's task.In this study,a wearable UAR system integrated with an MBH is proposed to augment the shop floor environment with smart information.A case study is implemented to demonstrate the practicality and effectiveness of the proposed UAR and MBHI system. | S.K.Ong X.Wang A.Y.C.Nee | 2020 | Advances in Manufacturing2020，8，2： | 0 |
| 12 | Mobile augmented reality visualization and collaboration techniques for on-site finite element structural analysis显示文摘In this paper,a mobile augmented reality(AR)framework for on-site finite element analysis(FEA)is proposed.The proposed framework is achieved using a client–server architecture.The performance of FEA relies on several important components,namely,computational power,visualization technique,and numerical analysis.AR renders intuitive computer-generated contents directly on a user’s surroundings.Integrating FEA with AR helps users through enhancing their perception and interaction with the engineering problems.Correct and effective visualization of these data using an AR platform can reduce the misinterpretation in spatial and logical aspects.Over the past decade,AR has undergone a transition from desktop to phablet computing.Mobile platforms enable user exploration of FEA results in situ.The client side uses a hybrid method to visualize FEA results in the mobile AR environment.In addition,a user can collaborate with other users by using the result sharing function.A prototype with basic functions has been built and a case study has been implemented to demonstrate the visualization method and evaluate the overall performance. | W.K.Li A.Y.C.Nee S.K.Ong | 2018 | International Journal of Modeling, Simulation, and Scientific Computing2018，9，3： | 0 |
| 13 | AR-assisted robot welding programming显示文摘Robotic welding demands high accuracy and precision.However,robot programming is often a tedious and time-consuming process that requires expert knowledge.This paper presents an augmented reality assisted robot welding task programming(ARWP)system using a user-friendly augmented reality(AR)interface that simplifies and speeds up the programming of robotic welding tasks.The ARWP system makes the programming of robot welding tasks more user-friendly and reduces the need for trained programmers and expertise in specific robotic systems.The AR interface simplifies the definition of a welding path as well as the welding gun orientation,and the system;the system can locate the welding seam of a workpiece quickly and generate a viable welding path based on the user input.The developed system is integrated with the touch-sensing capability of welding robots in order to locate the welding path accurately based on the user input,for fillet welding.The system is applicable to other welding processes and methods of seam localization.The system implementation is described and evaluated with a case study. | S.K.Ong A.Y.C.Nee A.W.W.Yew N.K.Thanigaivel | 2020 | Advances in Manufacturing2020，8，1： | 0 |
| 14 | Improving maintenance efficiency and safety through a human-centric approach显示文摘This paper presents an adaptive human-machine interface(HMI)that can provide appropriate sets of digital maintenanceinformation and guidance to an operator during maintenance.It takes into consideration the expertise level of the operator and the maintenance context and progress.The proposed human-centric methodology considers the heart rate,intention,and expertise level of the operator,which can be captured using sensors during maintenance.A set of rules is formulated based on the sensor data to infer the state of the operator during a maintenance task.Based on the operator state,the adaptive HMI can augment the operator's senses using a scheme that combines visual,audio,and haptic guidance cues during maintenance to enhance the operator's ability to perceive information and perform maintenance tasks.Various schemes of visual,audio,and haptic cues are developed based on a comparison of the best practices obtained from experienced operators. | C.Y.Siew S.K.Ong A.Y.C.Nee | 2021 | Advances in Manufacturing2021，9，1： | 0 |
| 15 | An Agent-Based Distributed Manufacturing System显示文摘Agent theories have shown their promising capability in solving distributed complex system ever since its development. In this paper,one multi-agent based distributed product design and manufacturing planning system is presented. The objective of the research is to develop a distributed collaborative design environment for supporting cooperation among the existing engineering functions. In the system,the functional agents for design,manufacturability evaluation,process planning and scheduling are efficiently integrated with a facilitator agent. This paper firstly gives an introduction to the system structure,and the definitions for each executive agent are then described and a prototype of the proposed is also included at the end part. | J.Y.H.Fuh A.Y.C.Nee | 2006 | 武汉理工大学学报2006，28，S1： | 0 |
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