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  • 1.
    Afshar, Sara Zargari
    et al.
    Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.
    Koroorian, Fereidon
    ABB, Västerås, Sweden.
    Ashjaei, Seyed Mohammad Hossein
    Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.
    Granlund, Anna
    Mälardalens högskola, Akademin för innovation, design och teknik, Innovation och produktrealisering.
    Investigating Alternatives for System Architectures to Enhance Discrete Manufacturing2019Ingår i: International Journal of Distributed Sensor Networks, ISSN 1550-1329, E-ISSN 1550-1477, Vol. 15, nr 8, artikel-id 1550147719868668Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article investigates the possibility of advancing discrete manufacturing using system architectures that are developed for Collaborative Process Automation Systems. Collaborative Process Automation System is a technology that has the potential to achieve production excellence for process industry. However, not much attention has been paid on using the architectures based on Collaborative Process Automation Systems for discrete manufacturing domains. In this article, we propose a base architecture consisting of three layers, and we discuss various alternatives to make the communications among the layers. We consider legacy components in the proposal, in contrast to most of the related works. In order to show the practicality of the proposed alternatives, we present an example that has been implemented in an ongoing project at ABB Robotics in Sweden.

  • 2.
    Familiar, Miguel S
    et al.
    Technical University of Madrid.
    Martínez-Ortega, José-Fernán
    Technical University of Madrid.
    Lopez, Lourdes
    Technical University of Madrid.
    Pervasive smart spaces and environments: a service-oriented middleware architecture for wireless Ad Hoc and sensor networks2012Ingår i: International Journal of Distributed Sensor Networks, ISSN 1550-1329, E-ISSN 1550-1477, s. Article number 725190-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In the twenty-first century, the impact of wireless and ubiquitous technologies is changing the way people perceive and interact with the physical world. These communication paradigms promise to change and redefine, in a reasonably short period of time, the most common way of our everyday living. The continuous advances in the field of Wireless Sensor Networks and their direct application in Smart Spaces are clear examples of it. However, in order for this kind of new generation infrastructures to have a large-scale dissemination, there are still some open issues to tackle. In this way, this paper presents nSOM, a service-oriented framework based on sensor network design that provides internetworking services with the Internet cloud. This lightweight middleware architecture implements an agent-based virtual sensor service approach which is a compact semantic knowledge management scheme based on a dynamic composition model. Copyright © 2012 Miguel S. Familiar et al.

  • 3.
    Huang, Yuanjiang
    et al.
    Technical University of Madrid.
    Martínez-Ortega, José-Fernán
    Technical University of Madrid.
    Sendra, Juana
    Technical University of Madrid.
    Lopez, Lourdes
    Technical University of Madrid.
    The Influence of Communication Range on Connectivity for Resilient Wireless Sensor Networks Using a Probabilistic Approach2013Ingår i: International Journal of Distributed Sensor Networks, ISSN 1550-1329, E-ISSN 1550-1477, s. Article number 482727-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Wireless sensor networks (WSNs) consist of thousands of nodes that need to communicate with each other. However, it is possible that some nodes are isolated from other nodes due to limited communication range. This paper focuses on the influence of communication range on the probability that all nodes are connected under two conditions, respectively: (1) all nodes have the same communication range, and (2) communication range of each node is a random variable. In the former case, this work proves that, for 0 < ε < e - 1, if the probability of the network being connected is 0.36 ε, by means of increasing communication range by constant C (ε), the probability of network being connected is at least 1 - ε. Explicit function C (ε) is given. It turns out that, once the network is connected, it also makes the WSNs resilient against nodes failure. In the latter case, this paper proposes that the network connection probability is modeled as Cox process. The change of network connection probability with respect to distribution parameters and resilience performance is presented. Finally, a method to decide the distribution parameters of node communication range in order to satisfy a given network connection probability is developed.

  • 4.
    Rodríguez-Molina, Jesús
    et al.
    Technical University of Madrid.
    Martínez-Ortega, José-Fernán
    Technical University of Madrid.
    Castillejo, Pedro
    Technical University of Madrid.
    de Diego, Rubén
    Technical University of Madrid.
    SMArc: a proposal for a smart, semantic middleware architecture focused on Smart City energy management2013Ingår i: International Journal of Distributed Sensor Networks, ISSN 1550-1329, E-ISSN 1550-1477, Vol. 2013, s. Article ID 560418-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Among the main features that are intended to become part of what can be expected from the Smart City, one of them should be an improved energy management system, in order to benefit from a healthier relation with the environment, minimize energy expenses, and offer dynamic market opportunities. A Smart Grid seems like a very suitable infrastructure for this objective, as it guarantees a two-way information flow that will provide the means for energy management enhancement. However, to obtain all the required information, another entity must care about all the devices required to gather the data. What is more, this entity must consider the lifespan of the devices within the Smart Grid—when they are turned on and off or when new appliances are added—along with the services that devices are able to provide. This paper puts forward SMArc—an acronym for semantic middleware architecture—as a middleware proposal for the Smart Grid, so as to process the collected data and use it to insulate applications from the complexity of the metering facilities and guarantee that any change that may happen at these lower levels will be updated for future actions in the system.

  • 5.
    Yu, Kan
    et al.
    Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.
    Pang, ZB
    Corp Res, ABB AB, Sweden.
    Gidlund, M
    Corp Res, ABB AB, Sweden.
    Åkerberg, Johan
    Corp Res, ABB AB, Sweden.
    Björkman, Mats
    Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.
    REALFLOW: Reliable Real-Time Flooding-Based Routing Protocol for Industrial Wireless Sensor Networks2014Ingår i: International Journal of Distributed Sensor Networks, ISSN 1550-1329, E-ISSN 1550-1477, s. art. nbr: 936379-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Wireless technologies have been increasingly applied in industrial automation systems due to flexible installation, mobility, and cost reduction. Unlike traditional wireless sensor networks (WSNs), industrial wireless sensor networks (IWSNs), when expanding from wireless monitoring to wireless control, have more stringent requirements on reliability, real-time performance, and robustness in a number of industrial applications. Successive transmission failures or deadline misses in these applications may severely degrade the control quality and result in serious economic losses and safety problems. Therefore, when deploying IWSNs in harsh industrial environments, to achieve reliable and deterministic end-to-end transmissions is critically important. In this paper, we explain the primary challenges of designing appropriate routing protocols and present a reliable real-time flooding-based routing protocol for IWSNs (REALFLOW). Instead of traditional routing tables, related node lists are generated in a simple distributed manner, serving for packet forwarding. A controlled flooding mechanism is applied to improve both reliability and real-time performance. A seamless transition in the event of topology change can be achieved by REALFLOW. Performance evaluations via simulations verify that significant improvements of reliability, real-time performance, and network recovery time can be achieved by REALFLOW, compared with traditional routing protocols.

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