PLC Based Fully Automated Railway System

Abstract

This paper aims to replace the manual work in railway protection system by automatically controlling
and monitoring the train movements using PLC& SCADA. Nowadays even though automation plays a vital role in
almost all areas but still railway system is not completely automated. Currently the railway network protection
parameters like gate control, identifying track cracks, track collision, track changing and traffic light (indication) are
controlled individually by their respective process either manually or semi-automatically, Even then the simultaneous
control of all parameters does not exists to ensure safety operation. And at the same time the entire control is given
only from control room using embedded technology which is tedious in monitoring and providing the required control
under critical situations. To overcome those problems the proposed idea provides both monitoring and control of all
the above said parameters with the provision of issuing automatic control in the locomotive itself uses PLC.
Programmable Logic Controller (Keyence) senses the input from its respective sensors and according to the ladder
program it issues the necessary control automatically. The entire operation is monitored using SCADA software