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http://dx.doi.org/10.5573/ieie.2016.53.4.027

Study on the Optimization of Hybrid Network Topology for Railway Cars  

Kim, Jungtai (Korea Railroad Research Institute)
Yun, Ji-Hoon (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.4, 2016 , pp. 27-34 More about this Journal
Abstract
In the train system, railway vehicles are connected in a line. Therefore, this feature should be considered in composing network topology in a train system. Besides, inter-car communication should be distinguished from in-car communication. As for the inter-car communication, the hybrid topology was proposed to use rather than the conventional ring, star, daisy-chain, and bus topologies. In the hybrid topology, a number of cars are bound to be a group. Then star topology is used for the communication in a group and daisy-chain topology is used for the communication between groups. Hybrid topology takes the virtue of both star and daisy-chain topologies. Hence it maintains communication speed with reducing the number of connecting cables between cars. Therefore, it is important to choose the number of cars in a group to obtain higher performance. In this paper, we focus on the optimization of hybrid topology for railway cars. We first assume that the size of data and the frequency of data production for each car is identical. We also assume that the importance for the maximum number of cables to connect cars is variable as well as the importance of the communication speed. Separated weights are granted to both importance and we derive the optimum number of cars in a group for various number of cars and weights.
Keywords
Railroad train network; Network topology; Hybrid topology; Structure optimization; Ethernet network;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Peter Hank, Thomas Suermann, and Steffen Muller, "Automotive ethernet, a Holistic Approach for a Next Generation In-Vehicle Networking Standard," Advanced Microsystems for Automotive Applications 2012, Springer Berlin Heidelberg, pp. 79-89, 2012.
2 Ovidiu Vermesan et al., "Advanced Electronic Architecture Design for Next Electric Vehicle Generation," Springer Lecture Notes in Mobility, pp. 117-141, 2015.
3 Hyung-Taek Lim, Kay Weckemann, and Daniel Herrscher. "Performance Study of an In-car Switched Ethernet Network Without Prioritization." Communication Technologies for Vehicles. Springer Berlin Heidelberg, pp. 165-175, 2011.
4 Mina Hwang et al., "Performance Evaluation of Low Complexity and Low Cost Automotive Real-Time Ethernet Network," IEIE Conference, Vol. 36, no. 1, pp. 428-431, 2013.
5 http://www.trainweb.org/henrykisor/AlgomaTour/
6 Jun Ho Lee et al., "A Study on the topology design algorithm for common channel signalling network", Journal of the Institute of Electronics and Information Engineers, Vol. 28B, No. 5, pp. 369-381, May 1991.
7 Gwanggyun Shin et al., "Network Communication Device for Trains", Korean Registered Patent No. 10-1081843, 2011.
8 Hwanwoong Hwang et al., "Analysis of Network Topology for Distributed Control System in Railroad Trains," Journal of the Institute of Electronics and Information Engineers, Vol. 52, No. 10, pp. 1741-1749, Oct. 2015.
9 http://datab.us/i/Longest%20trains