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http://dx.doi.org/10.12673/jant.2017.21.5.491

Implementation of the Traffic Control System based Low Cost Dual Modular Redundancy  

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)
Publication Information
Journal of Advanced Navigation Technology / v.21, no.5, 2017 , pp. 491-500 More about this Journal
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.
Keywords
Fault tolerant; Dual modular redundancy; Traffic control; Heart beat; Fault injection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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