한국정보통신학회논문지 (Journal of the Korea Institute of Information and Communication Engineering)

  • 제24권11호
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  • Pages.1477-1483
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  • 2020
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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크리티컬한 제어 시스템용 고강건 무선 센서 액추에이터 네트워크

Robust Wireless Sensor and Actuator Network for Critical Control System

  • Park, Pangun (Department of Radio and Information Communications Engineering, Chungnam National University)
  • 투고 : 2020.07.22
  • 심사 : 2020.08.20
  • 발행 : 2020.11.30
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초록

무선 링크의 불확실성과 임베디드 장치의 결함으로 인하여 무선 네트워크 기반 제어 시스템의 안정성을 보장하는 것은 여전한 도전과제이다. 본 논문에서는 시간, 채널 및 공간 자원의 다양성을 조합하여 계층적 클러스터 기반 고강건 무선 센서 액추에이터 네트워크(R-WSAN; Robust Wireless Sensor and Actuator Network )를 제시한다. R-WSAN은 무선 네트워크 자원 할당을 위한 스케줄링 알고리즘과 다중 플랜트의 제어 안정성을 보장하기 위한 제어 업무 공유 알고리즘을 포함한다. 또한, 제시된 프로토콜은 Zolertia RE-Mote 임베디드 하드웨어와 Contiki-NG를 기반으로 구현되고, 실험을 통하여 성능을 분석 하였다. 실험 결과를 통해 R-WSAN이 무선 링크 및 노드의 결함에도 고강건성을 보장하는 것을 보여 주었다. 또한, 제시된 스케줄링 알고리즘과 제어 공유 알고리즘을 통해, 제어 노드의 결함에도 제어 시스템의 안정성을 보장할 수 있음을 보여주었다.

The stability guarantee of wireless network based control systems is still challenging due to the lossy links and node failures. This paper proposes a hierarchical cluster-based network protocol called robust wireless sensor and actuator network (R-WSAN) by combining time, channel, and space resource diversity. R-WSAN includes a scheduling algorithm to support the network resource allocation and a control task sharing scheme to maintain the control stability of multiple plants. R-WSAN was implemented on a real test-bed using Zolertia RE-Mote embedded hardware platform running the Contiki-NG operating system. Our experimental results demonstrate that R-WSAN provides highly reliable and robust performance against lossy links and node failures. Furthermore, the proposed scheduling algorithm and the task sharing scheme meet the stability requirement of control systems, even if the controller fails to support the control task.

키워드

참고문헌

  1. P. Park, S.C. Ergen, C. Fischione, C. Lu, and K.H. Johansson, "Wireless network design for control systems: A survey," in IEEE Communications Survey & Tutorials, vol. 20, no. 2, pp. 978-1013, Secondquarter 2018. https://doi.org/10.1109/COMST.2017.2780114
  2. Z. Pang, M. Luvisotto, and D. Dzung, "Wireless High-Performance Communications: The Challenges and Opportunities of a New Target," in IEEE Industrial Electronics Magazine, vol. 11, no. 3, pp. 20-25, Sep. 2017. https://doi.org/10.1109/MIE.2017.2703603
  3. P. Park, P. D. Marco and K. H. Johansson, "Cross-Layer Optimization for Industrial Control Applications using Wireless Sensor and Actuator Mesh Networks," in IEEE Transactions on Industrial Electronics, vol. 64, no. 4, pp. 3250-3259, April 2017. https://doi.org/10.1109/TIE.2016.2631530
  4. B. Park and P. Park, "Proactive Network Optimizer for Critical Applications," in Journal of the Korea Institute of Information and Communication Engineering, vol. 22, no. 9, pp. 1250-1256, Aug. 2018. https://doi.org/10.6109/jkiice.2018.22.9.1250
  5. T. Watteyne, M. R. Palattella, and L. A. Grieco, "Using IEEE 802.15.4e Time-Slotted Channel Hopping (TSCH) in the Internet of Things (IoT): Problem Statement," in IETF Standard RFC7554, May. 2015.
  6. M. C. F. Donkers, W. P. M. H. Heemels, N. van de Wouw, and L. Hetel, "Stability Analysis of Networked Control Systems Using a Switched Linear Systems Approach," in IEEE Transactions on Automatic Control, vol. 56, no. 9, pp. 2101-2115, Sep. 2011. https://doi.org/10.1109/TAC.2011.2107631
  7. S. H. J. Heijmans, R. Postoyan, D. Nei, and W. P. M. H. Heemels, "Computing minimal and maximal allowable transmission intervals for networked control systems using the hybrid systems approach," in IEEE Control Systems Letters, vol. 1, no. 1, pp. 56-61, Jul. 2017. https://doi.org/10.1109/LCSYS.2017.2702755
  8. S. Heijmans, R. Postoyan, D. Nei, N. Noroozi, and M. Heemels, "Stability analysis of networked linear control systems with direct-feedthrough terms," in Automatica, vol. 96, pp. 186-200, 2018. https://doi.org/10.1016/j.automatica.2018.06.047
  9. M. Nistor, E. L Daniel and J. Barros, "Hardware abstraction and protocol optimization for coded sensor networks," in IEEE/ACM Transactions on Networks. vol. 23, no. 3, pp. 866-879, June 2015. https://doi.org/10.1109/TNET.2014.2310171
  10. A. Dunkels, B. Gronvall, and T. Voigt, "Contiki - a lightweight and flexible operating system for tiny networked sensors," in IEEE International Conference on Local Computer Networks, FL, USA, pp. 455-462, 2004.
  11. S. Duquennoy, B. Al Nahas, O. Landsiedel, and T. Watteyne, "Orchestra: Robust mesh networks through autonomously scheduled TSCH," in ACM Conference on Embedded Networked Sensor Systems, New York, USA, pp. 337-350, 2015.