Railway Tunnel Automation using PLC

Electrical Engineering

There are certain control systems that cannot be disabled or shut down, even momentarily, because of the threat to people lives. In these applications, a redundant control system must be in place to take over instantaneously if the primary system fails. This paper aims to replace the manual work in railway protection system by automatically controlling and monitoring the train movements using PLC& SCADA. In our project controlling of various parameter are done. Like signals for incoming train, alert signal to human beings and animal, fire safety for train inside the tunnel, also it save the electricity because of automatic controlling of light inside the tunnel. 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 using PLC. Programmable Logic Controller (Keyence) senses the input from its respective sensors and according to the ladder program it issues the necessary control automatically.

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