Design of 2-Vote-2 Safety Control System Based on FPGA for Railway Train Operation

DOI

10.2991/iccia-17.2017.79How to use a DOI?

Keywords

train operation, redundancy, FPGA, IP core, 2-Vote-2.

Abstract

In the railway system, the speed of trains is increasing continuously. In order to improve safety and reliability of signals, a 2-Vote-2 safety system based on single FPGA chip and multiple IP soft cores is designed. The control system embeds two MC8051 IP cores and a 2-Vote-2 module which is consisted of two 74373, four 74377 and one PLL inside FPGA. Using speed information of the DC motor to simulate train operation state information, the system realizes control of train operation states. The system has high integration, low power consumption and better safety by redundancy of the railway system. The designed 2-Vote-2 comparing unit allows +3% errors for input information, which improves system reliability. Experimental tests validate that the control system is able to control speed of the DC motor. Additionally, experimental results demonstrate the safety system could stop the motor in time and give corresponding alarm information when the operation is illegal.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Beibei Wang
AU  - Cairong Zhang
AU  - Yuguang Wang
PY  - 2016/07
DA  - 2016/07
TI  - Design of 2-Vote-2 Safety Control System Based on FPGA for Railway Train Operation
BT  - Proceedings of the 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017)
PB  - Atlantis Press
SP  - 465
EP  - 468
SN  - 2352-538X
UR  - https://doi.org/10.2991/iccia-17.2017.79
DO  - 10.2991/iccia-17.2017.79
ID  - Wang2016/07
ER  -