The Experts below are selected from a list of 51021 Experts worldwide ranked by ideXlab platform
Richard Candell - One of the best experts on this subject based on the ideXlab platform.
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Wireless Cyber-Physical System Performance Evaluation Through a Graph Database Approach
Journal of Computing and Information Science in Engineering, 2020Co-Authors: Mohamed Kashef, Yongkang Liu, Karl R. Montgomery, Richard CandellAbstract:Abstract Despite the huge efforts to deploy wireless communications technologies in smart manufacturing scenarios, some manufacturing sectors are still slow to massive adoption. This slowness of widespread adoption of wireless technologies in cyber-physical systems (CPSs) is partly due to not fully understanding the detailed impact of wireless deployment on the physical processes especially in the cases that require low latency and high reliability communications. In this article, we introduce an approach to integrate wireless netWork traffic data and physical processes data to evaluate the impact of wireless communications on the performance of a manufacturing Factory Work cell. The proposed approach is introduced through the discussion of an engineering use case. A testbed that emulates a robotic manufacturing Factory Work cell is constructed using two collaborative-grade robot arms, machine emulators, and wireless communication devices. All netWork traffic data are collected and physical process data, including the robots and machines states and various supervisory control commands, is also collected and synchronized with the netWork data. The data are then integrated where redundant data are removed and correlated activities are connected in a graph database. A data model is proposed, developed, and elaborated; the database is then populated with events from the testbed, and the resulting graph is presented. Query commands are then presented as a means to examine and analyze netWork performance and relationships within the components of the netWork. Moreover, we detail the way by which this approach is used to study the impact of wireless communications on the physical processes and illustrate the impact of various wireless netWork parameters on the performance of the emulated manufacturing Work cell. This approach can be deployed as a building block for various descriptive and predictive wireless analysis tools for CPS.
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A SysML representation of the wireless Factory Work cell
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
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A SysML Representation of the Wireless Factory Work-cell: Enabling real-time observation and control by modeling significant architecture, components, and information flows.
The International journal advanced manufacturing technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
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A Model of a Wireless Factory Work-Cell Using the Systems Modeling Language
Journal of Research of the National Institute of Standards and Technology, 2018Co-Authors: Richard CandellAbstract:Wireless technology is a key enabler of the vision of the future Factory Work-cell. Such a Work-cell will operate autonomously with a high degree of mobility enabled by wireless technology. This paper describes the Work-cell using the Systems Modeling Language (SysML). Using SysML the structural and parametric characteristics of the Work-cell are described. Our model provides the architectural components and performance constraints of the Work-cell in which wireless is used for a significant portion of connectivity. It identifies the structural components, interfaces, and data flows. Parametric characteristics that impact Work-cell performance are included in the model. Using this model, industrial wireless netWorking requirements and Work-cell behaviors may be developed and performance limits may be evaluated. The SysML model presented here is developed using MagicDraw 18.5 by No Magic.
Sebti Foufou - One of the best experts on this subject based on the ideXlab platform.
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A SysML representation of the wireless Factory Work cell
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
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A SysML Representation of the Wireless Factory Work-cell: Enabling real-time observation and control by modeling significant architecture, components, and information flows.
The International journal advanced manufacturing technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
Michael Pickering - One of the best experts on this subject based on the ideXlab platform.
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Harmonious relations? Music at Work in the Rowntree and Cadbury factories
Business History, 2007Co-Authors: Emma Robertson, Marek Korczynski, Michael PickeringAbstract:The history of music in the Workplace is a neglected area of study. This article explores the policies towards music in the paternalist Rowntree and Cadbury confectionery factories from the late nineteenth to the late twentieth century. We argue that the two firms were pioneering in their early use of music before becoming key players in the industrial welfare movement following the First World War. The broadcasting of music by Rowntree and Cadbury in the mid to late twentieth century is then placed in the context of a widespread adoption of tannoyed music in factories. We argue that music was employed as a means of easing the monotony of Factory Work whilst simultaneously aiming to improve productivity levels. However, as we demonstrate through oral history, women Workers experienced music in ways not always in tune with management objectives.
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'We Sang Ourselves Through That War': Women, Music and Factory Work in World War Two
Labour History Review, 2005Co-Authors: Marek Korczynski, Emma Robertson, Michael Pickering, Keith JonesAbstract:This paper examines the role of music in women's experience of Factory Work in the Second World War — an important topic but one largely overlooked in the existing literature. Two important forms of music flourished in war factories — the relaying of Music While You Work through loudspeakers, and the collective singing of Workgroups. Drawing on a range of sources, the paper shows that music served to both express and create community in the Workplace, and came to be seen as an anthropological necessity for survival in the context of exposure to repetitive and monotonous labour. The music also expressed a complex mix of simultaneous accommodation and resistance to women's position in munitions Factory production. A key motif in women's musical cultures was autonomy, suggesting important continuities with the autonomous texture of other shopfloor cultures in Britain in the middle of the twentieth century. The widespread nature of women's singing also has important implications for how we understand the hist...
G T Tucker - One of the best experts on this subject based on the ideXlab platform.
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making the software Factory Work lessons from a decade of experience
IEEE International Software Metrics Symposium, 2001Co-Authors: Harvey Siy, James D Herbsleb, Audris Mockus, Mayuram S Krishnan, G T TuckerAbstract:At the heart of proposals to use process-oriented techniques for creating organizations that are capable of creating high-quality software at low cost is a focus on software process maturity, organizational learning to foster continuous improvement, and contractual arrangements that support an exclusive focus on software construction activities, as opposed to a broader focus on end-to-end development of an entire product. We study an organization that was to provide fast, low-cost, high-quality software development services to product teams within Lucent Technologies. The vision called for an organization with a culture that is distinct and isolated from the rest of Lucent, characterized by a commitment to a well-defined software development process, use of state-of-the-art technology that fits into the process, and use of various forms of feedback to recognize and take advantage of opportunities for process improvement. The organization has operated for nearly a decade now, and has evolved over the years as the basic principles have been put to the test in actual product development Work. We use a rich collection of data from interviews, questionnaires, software metrics and software process assessments to advance our knowledge of how to create and sustain an effective, medium-size process-centered software development organization.
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IEEE METRICS - Making the software Factory Work: lessons from a decade of experience
Proceedings Seventh International Software Metrics Symposium, 1Co-Authors: Harvey Siy, James D Herbsleb, Audris Mockus, Mayuram S Krishnan, G T TuckerAbstract:At the heart of proposals to use process-oriented techniques for creating organizations that are capable of creating high-quality software at low cost is a focus on software process maturity, organizational learning to foster continuous improvement, and contractual arrangements that support an exclusive focus on software construction activities, as opposed to a broader focus on end-to-end development of an entire product. We study an organization that was to provide fast, low-cost, high-quality software development services to product teams within Lucent Technologies. The vision called for an organization with a culture that is distinct and isolated from the rest of Lucent, characterized by a commitment to a well-defined software development process, use of state-of-the-art technology that fits into the process, and use of various forms of feedback to recognize and take advantage of opportunities for process improvement. The organization has operated for nearly a decade now, and has evolved over the years as the basic principles have been put to the test in actual product development Work. We use a rich collection of data from interviews, questionnaires, software metrics and software process assessments to advance our knowledge of how to create and sustain an effective, medium-size process-centered software development organization.
Mohamed Kashef - One of the best experts on this subject based on the ideXlab platform.
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Wireless Cyber-Physical System Performance Evaluation Through a Graph Database Approach
Journal of Computing and Information Science in Engineering, 2020Co-Authors: Mohamed Kashef, Yongkang Liu, Karl R. Montgomery, Richard CandellAbstract:Abstract Despite the huge efforts to deploy wireless communications technologies in smart manufacturing scenarios, some manufacturing sectors are still slow to massive adoption. This slowness of widespread adoption of wireless technologies in cyber-physical systems (CPSs) is partly due to not fully understanding the detailed impact of wireless deployment on the physical processes especially in the cases that require low latency and high reliability communications. In this article, we introduce an approach to integrate wireless netWork traffic data and physical processes data to evaluate the impact of wireless communications on the performance of a manufacturing Factory Work cell. The proposed approach is introduced through the discussion of an engineering use case. A testbed that emulates a robotic manufacturing Factory Work cell is constructed using two collaborative-grade robot arms, machine emulators, and wireless communication devices. All netWork traffic data are collected and physical process data, including the robots and machines states and various supervisory control commands, is also collected and synchronized with the netWork data. The data are then integrated where redundant data are removed and correlated activities are connected in a graph database. A data model is proposed, developed, and elaborated; the database is then populated with events from the testbed, and the resulting graph is presented. Query commands are then presented as a means to examine and analyze netWork performance and relationships within the components of the netWork. Moreover, we detail the way by which this approach is used to study the impact of wireless communications on the physical processes and illustrate the impact of various wireless netWork parameters on the performance of the emulated manufacturing Work cell. This approach can be deployed as a building block for various descriptive and predictive wireless analysis tools for CPS.
-
A SysML representation of the wireless Factory Work cell
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
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A SysML Representation of the Wireless Factory Work-cell: Enabling real-time observation and control by modeling significant architecture, components, and information flows.
The International journal advanced manufacturing technology, 2019Co-Authors: Richard Candell, Mohamed Kashef, Yongkang Liu, Sebti FoufouAbstract:A fourth industrial revolution, occurring in global manufacturing, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and responsive communications systems, and computing paradigms to maximize efficiency, enable mobility, and realize the promises of the digital Factory. Wireless technology is a key enabler of that vision. A comprehensive graphical model is developed for a generic wireless Factory Work cell which employs the Systems Modeling Language (SysML), a standardized and semantically rich modeling language, to link the physical and netWork domains in such a cyber-physical system (CPS). The proposed model identifies the structural primitives, interfaces, and behaviors of the highly connected Factory Work cell in which wireless technology is used for significant data flows involved in control algorithms. The model includes the parametric definitions to encapsulate information loss, delay, and mutation associated with the wireless netWork, and it identifies pertinent wireless information flows.
