| 1. |
- Barzegaran, Mohammadreza, et al.
(författare)
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Towards quality-of-control-aware scheduling of industrial applications on fog computing platforms
- 2019
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Ingår i: IoT-Fog 2019 - Proceedings of the 2019 Workshop on Fog Computing and the IoT. - New York, NY, USA : ACM. - 9781450366984 ; , s. 1-5
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Konferensbidrag (refereegranskat)abstract
- In this paper we address Industrial IoT control applications which are safety-critical and real-time, and which have very low latency and jitter requirements. These control applications are virtualized as software tasks running on a Fog Computing Platform that brings computing and deterministic communication closer to the edge of the network, where the industrial "things" are located. Due to the demanding dependability and timing requirements, we consider that the tasks are scheduled with a static-cyclic scheduling policy. We are interested to determine the mapping of the tasks and a schedule table of their activation, such that we maximize the quality-of-control for the control tasks and meet the timing requirements for all tasks, including non-critical real-time tasks. We have proposed a Simulated Annealing-based metaheuristic to solve this problem, and we have evaluated the solution on several test cases.
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| 2. |
- Desai, Nitin, 1986-, et al.
(författare)
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Safety of fog-based industrial automation systems
- 2019
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Ingår i: IoT-Fog 2019 - Proceedings of the 2019 Workshop on Fog Computing and the IoT. - New York, NY, USA : Association for Computing Machinery, Inc. - 9781450366984 ; , s. 6-10
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Konferensbidrag (refereegranskat)abstract
- The Fog computing paradigm employing multiple technologies is expected to play a key role in a multitude of industrial applications by fulfilling futuristic requirements such as flexible and enhanced computing, storage, and networking capability closer to the field devices. While performance aspects of the Fog paradigm has been the central focus of researchers, safety aspects have not received enough attention so far. In this paper, we identify various safety challenges related to the Fog paradigm and provide specific safety design aspects as a step towards enhancing safety in industrial automation scenarios. We contextualize these ideas by invoking a distributed mobile robots use-case that can benefit from the use of the Fog paradigm.
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| 3. |
- Ruuskanen, Johan, et al.
(författare)
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Latency prediction in 5G for control with deadtime compensation
- 2019
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Ingår i: IoT-Fog '19 Proceedings of the Workshop on Fog Computing and the IoT. - 9781450366984 ; , s. 51-55
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Konferensbidrag (refereegranskat)abstract
- With the promise of increased responsiveness and robustness of the emerging 5G technology, it is suddenly becoming feasible to deploy latency-sensitive control systems over the cloud via a mobile network. Even though 5G is herald to give lower latency and jitter than current mobile networks, the effect of the delay would still be non-negligible for certain applications.In this paper we explore and demonstrate the possibility of compensating for the unknown and time-varying latency introduced by a 5G mobile network for control of a latency-sensitive plant. We show that the latency from a prototype 5G test bed lacks significant short-term correlation, making accurate latency prediction a difficult task. Further, because of the unknown and time-varying latency our used simple interpolation-based model experiences some troubling theoretical properties, limiting its usability in real world environments. Despite this, we give a demonstration of the strategy which seems to increase robustness in a simulated plant.
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| 4. |
- Salman Shaik, Mohammed, et al.
(författare)
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Fogification of industrial robotic systems : Research challenges
- 2019
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Ingår i: IoT-Fog 2019 - Proceedings of the 2019 Workshop on Fog Computing and the IoT. - New York, NY, USA : Association for Computing Machinery, Inc. - 9781450366984 ; , s. 41-45
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Konferensbidrag (refereegranskat)abstract
- To meet the demands of future automation systems, the architecture of traditional control systems such as the industrial robotic systems needs to evolve and new architectural paradigms need to be investigated. While cloud-based platforms provide services such as computational resources on demand, they do not address the requirements of real-time performance expected by control applications. Fog computing is a promising new architectural paradigm that complements the cloud-based platform by addressing its limitations. In this paper, we analyse the existing robot system architecture and propose a fog-based solution for industrial robotic systems that addresses the needs of future automation systems. We also propose the use of Time-Sensitive Networking (TSN) services for real-time communication and OPC-UA for information modelling within this architecture. Additionally, we discuss the main research challenges associated with the proposed architecture.
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| 5. |
- Tange, Koen, et al.
(författare)
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Towards a Systematic Survey of Industrial IoT Security Requirements : Research Method and Quantitative Analysis
- 2019
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Ingår i: Proceedings of the 2019 Workshop on Fog Computing and the IoT (IOT-FOG '19). - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450366984 ; , s. 56-63
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Konferensbidrag (refereegranskat)abstract
- Industry 4.0 and, in particular, Industrial Internet of Things (IIoT) represent two of the major automation and data exchange trends of the 21st century, driving a steady increase in the number of smart embedded devices used by industrial applications. However, IoT devices suffer from numerous security flaws, resulting in a number of large scale cyber-attacks. In this light, Fog computing, a relatively new paradigm born from the necessity of bridging the gap between Cloud computing and IoT, can be used as a security solution for the IIoT. To achieve this, the first step is to clearly identify the security requirements of the IIoT that can be subsequently used to design security solutions based on Fog computing. With this in mind, our paper represents a preliminary work towards a systematic literature review of IIoT security requirements. We focus on two key steps of the review: (1) the research method that will be used in the systematic work and (2) a quantitative analysis of the results produced by the study selection process. This lays the necessary foundations to enable the use of Fog computing as a security solution for the IIoT.
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| 6. |
- Vreman, Nils, et al.
(författare)
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Multilayer distributed control over 5G networks : Challenges and security threats
- 2019
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Ingår i: IoT-Fog 2019 - Proceedings of the 2019 Workshop on Fog Computing and the IoT. - New York, NY, USA : ACM. - 9781450366984 ; , s. 31-35
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Konferensbidrag (refereegranskat)abstract
- Modern control algorithms are frequently implemented in a distributed and decentralized way. Multiple fog devices communicate using paradigms borrowed from the Internet-of-Things. These control infrastructures are vulnerable to security threats. This position paper describes these threats and sketches future research on how to mitigate the security concerns that a modern distributed control infrastructure poses.
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