Shared Resource Allocation Scheme and Interval Control Algorithm for the T2T-Based Autonomous Train Control System 


Vol. 42,  No. 9, pp. 1781-1791, Sep.  2017
10.7840/kics.2017.42.9.1781


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  Abstract

In this paper, we propose a shared resource allocation scheme and an interval control algorithm using the state of the preceding train for train-to-train communication-based autonomous system. For this, by defining a resource manager (RM) to efficiently distribute a shared resource with semaphore access control, we propose a resource allocation scheme using the RM in autonomous train environments. To control train interval using direct communications between two consecutive trains, a worst-case braking model based on the best-case braking distance of the preceding train is proposed, and minimum safe interval distance and minimum headway are derived using the braking model. Simulation results show that compared with the conventional CBTC, the proposed algorithm performs better, and the effects of communication delay and braking system delay are analyzed in various speed environments. The proposed shared resource allocation scheme and interval control algorithm in the autonomous train environment can be expected to provide high interval control efficiency and to reduce the construction cost by eliminating the existing many ground equipments.

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  Cite this article

[IEEE Style]

S. Oh and Y. Cho, "Shared Resource Allocation Scheme and Interval Control Algorithm for the T2T-Based Autonomous Train Control System," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1781-1791, 2017. DOI: 10.7840/kics.2017.42.9.1781.

[ACM Style]

Sehchan Oh and Young-Jong Cho. 2017. Shared Resource Allocation Scheme and Interval Control Algorithm for the T2T-Based Autonomous Train Control System. The Journal of Korean Institute of Communications and Information Sciences, 42, 9, (2017), 1781-1791. DOI: 10.7840/kics.2017.42.9.1781.

[KICS Style]

Sehchan Oh and Young-Jong Cho, "Shared Resource Allocation Scheme and Interval Control Algorithm for the T2T-Based Autonomous Train Control System," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1781-1791, 9. 2017. (https://doi.org/10.7840/kics.2017.42.9.1781)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880