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Implementation of Communication to Flexibly Configure the Number of Railway Cars  

Yeon, Jun Sang (Electronics Engineering of Cheongju University)
Yang, Oh (Semiconductor Engineering of Cheongju University)
Publication Information
Journal of the Semiconductor & Display Technology / v.15, no.4, 2016 , pp. 61-66 More about this Journal
Abstract
This paper presents the implementation for a network structure of railway cars using a point to point communication. Most of network's representative specifications for a train are the FIP (Field Bus), MVB (Multifunction Vehicle Bus), CAN and WTB (Wire Train Bus) which is used by ALSOM, SIEMENS and BOMBADIER as major in this field. These networks in a physical layer use a multi-drop method, connected from $1^{st}$ car to $n^{th}$ car of a train through a cable without any extra services such as an electric part, amplifier. However waveforms which is passed through a long cable in the multi-drop are distorted by a capacitance or resistance of the cable or environments. Also since using a cable connected directly from $1^{st}$ car to $n^{th}$ car, if over two trains make double head, it isn't easy to distinguish ID for each railway cars. So by using the point to point network per each car, it is able to reduce a distortion. Also since reducing distortion, this communication speed can be been higher and transmit and receive any packets more stably. Using proposed token in a packet, this can make ID per each railway car automatically. Finally experimental results show the good performance and effectiveness of the proposed method.
Keywords
IEC61375; FPGA; HDLC(High-level Data link control); MVB (Multifunction Vehicle Bus); WTB (Wire Train Bus); TCN(Train communication network);
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