Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Implementation of the Traffic Control System based Low Cost Dual Modular Redundancy

저비용 이중화 시스템 기반 교통신호제어 (시스템) 구현

  • Lee, Dong-Woo (Avionics Research Institute, Korea Aerospace University) ;
  • Na, Jong-Whoa (Avionics Research Institute, Korea Aerospace University) ;
  • Kim, Nam-Sun (Police Science Institute, Korean National Police University)
  • 이동우 (한국항공대학교 항공전자연구소) ;
  • 나종화 (한국항공대학교 항공전자연구소) ;
  • 김남선 (경찰대학교 치안정책연구소)
  • Received : 2017.07.03
  • Accepted : 2017.09.02
  • Published : 2017.10.31
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Abstract

This paper investigates a low cost dual modular redundancy system based on heartbeat which can be applied to traffic control signal system. Failure of the traffic control signal system can cause traffic confusion and traffic accidents. Therefore safety and reliability of traffic control should be secured using fault tolerance technology. To do this, we configured a redundant board using the open source hardware and the heartbeat technique of Linux HA. The function of the traffic signal control system was verified and the fault recovery time was measured using fault injection test. As a result of the test, the fault recovery time was confirmed to be less than 9 seconds on average, confirming that the reliability target time is satisfied. Based on the results of this study, it is expected that it can be applied to fields requiring high reliability systems such as aviation, space, and nuclear power embedded systems.

본 논문은 교통신호 제어시스템 구축에 적용 가능한 하트비트 기반의 저비용 이중화 시스템을 구현하였다. 교통신호 제어시스템의 고장은 교통 혼란과 교통사고를 야기할 수 있다. 그러므로 고장감내 기술을 도입하여, 교통관제의 안전성과 신뢰성을 확보해야 한다. 이를 위해 오픈소스 하드웨어를 사용하여 이중화 보드를 구성하고, Linux HA를 사용하여 하트비트 기반의 고장 검출 및 복구 소프트웨어를 개발하였다. 교통신호 제어시스템의 기능을 검증하고, 결함주입 시험을 수행하여 장애에 따른 고장복구 시간을 측정하였다. 시험결과 고장복구 시간은 평균9초 이내로 확인되어 신뢰성 목표시간을 만족하는 것을 확인 하였다. 본 연구 결과를 기반으로 항공, 우주, 원자력 등 고 신뢰성 시스템이 요구되는 분야에 응용 될 수 있을 것으로 예상된다.

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References

  1. G. Y. Go, "The status of development of smart signal control system and future of intersection," TTA Journal, no 160, pp.44-50, 2015
  2. Intelligent Transport Society of Korea, "2013 Knowledge Sharing Program of Korea:Establishment of intelligent transport systems(ITS)," Government publications created by Ministry Of Strategy and Finance(MOSF) 11-1051000-000442-01, pp.83-95, 2013
  3. J. O. Choi, J. W. Jeong, "The Internet of Things: The Future of Adoption," National Information Society Agency (NIA), pp. 16-18, 2014
  4. J. P. Noh, J. H. Park, K. S. Son, and D. H. Kim "Reliability analysis of redundant architecture of dependable control system," Journal of Institute of Control, Robotics and Systems, vol 19. No 4, pp.328-333, 2013 https://doi.org/10.5302/J.ICROS.2013.12.1857
  5. http://www.linux-ha.org/wiki/Main_Page
  6. J. Y. Jeong, S. J. Park, J. S. Lim, and C. H. Lee "Implementation and performance analysis of high-availability system for mission computer," The Journal of the Korea Contents Association, vol 8. No 8, pp.47-56, 2009 https://doi.org/10.5392/JKCA.2008.8.8.047
  7. J. E. Kim, "A High Availability System Design for Enhancing Business Continuity Planning", A master's thesis from the Chung-ang University, 2005
  8. https://en.wikipedia.org/wiki/Raspberry_Pi
  9. M. Collotta, L. L. Bello, and G. Pau "A novel approach for dynamic traffic lights management based on wireless sensor networks and multiple fuzzy logic controller," Expert System with Applications, vol 42. No 13, pp.5403-5788, 2015 https://doi.org/10.1016/j.eswa.2015.02.011
  10. S. S. Chavan, R. S. Deshpande, and J. G. Rana, "Design of Intelligent Traffic Light Controller using Embedded System," Emerging Trands in Engineering and Technology(ICETET), pp.1086-1091, 2009