railway training

7/29/2019 Railway Training

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INDIAN RAILWAY

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TOPICES TO BE COVERED

Introduction About Indian Railway Railway Signalling

Interlocking

Route Relay Interlocking

Microwave Transmission

Optical Fiber Communication

The Passenger Reservation System

Interactive Voice Response System

Railnet

Routers2


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THE BEGINNING

First train started in India 1853from Bombay to Thane.

1853 first railway train

journeyed distance 22 mile

Bombay to Thana.

Originally , operated by

private English companies

1925-1950 GOI took over theall private railway companies.

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SERVICES PROVIDED BY INDIAN

RAILWAY

Indian railway operates both long distance and

suburban rail system.

It owns locomotive coach production facilities

at several places in India.

Its operations cover twenty eight states and

three union territories.

It also provides limited international services

to Nepal ,Bangladesh and Pakistan.

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DEPARTMENT OF INDIAN RAILWAYS

DIVISION RAILWAYMANAGERS

SIGNALE &TELECOMMUNICATION

DEPARTMENT

PLANNING &QUALITYDEPARTMENT

SAFTEY &MAINTENANCEDEPARTMENT

RESERVATION &ACCOUNTS

DEPARTMENT

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RAILWAY SIGNALLING

Railway signalling is a system used to control

railway traffic safely.

CBTC is a railway signalling system that makes use

of the telecommunications between the train and trackequipment.

By means of the CBTC systems, the exact position of

a train is known more accurately than with thetraditional signalling systems.

This results in a more efficient and safe way to

manage the railway traffic.

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RAILWAY SIGNALLING SYSTEM


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INTERLOCKING

Earlier signalmen were responsible for ensuring anypoints (US: switches) were set correctly beforeallowing a train to proceed.

Mistakes were made which led to accidents.

The process in which Points and signals at junctionsoperate in harmony to ensure that no unsafe movesare set up is known as Interlocking.

The concept of the interlocking of points, signals and

other appliances was introduced to improve safety This prevents a signalman from operating appliances

in an unsafe sequence.

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The station is interlocked by means of RRI and

worked with control Panel located in the RRI cabin.

Station is provided with multiple aspects color

light signals and electric machine operated points.

The entire operation of interlocked points and

signal for reception and departure of trains is done

through Control Panel by signal man on duty. Signal man is responsible for correct & safe

working of trains.

ROUTE RELAY INTERLOCKING

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ROUTE RELAY INTERLOCKING

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MICROWAVE TRANSMISSION

Microwave transmissionrefers to technology oftransmitting informationor energy by the use ofmicrowaves

Microwaves are widelyused for point-to-pointcommunications

Microwave transmissionis a type of unguidedtransmission

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Indian railway has

allocated frequencyband of 7.125 GHz to

7.425 GHz

Typical microwave

communication linkspeeds are 1-10 Mbps

A disadvantage is that

microwaves are limited

to line of sight

propagation

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MICROWAVE TRANMISSION

SYSTEM

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OPTICAL FIBER COMMUNICATION

Optical fiber transmission is used mainly in guided

transmission of a signal

Optical fiber communication is a method of

transmitting information from one place to another bysending pulses of light through an optical fiber

Wavelength-division multiplexing (WDM) is the

practice of multiplying the available capacity of

optical fibers through use of parallel channels, each

channel on a dedicated wavelength of light

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OPTICAL FIBER CABLE

Optical fiber is located atthe center of the cable

An special silicone coating

is applied outside the

cladding to preserve the

fibers strength

The protective coating is

surrounded by buffer jacket Finally entire cable

assembly is contained in an

outer polyurethane jacket15


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OPTICAL FIBER

An optical fiber is a flexible, transparent fibermade of glass (silica) or plastic

Optical fibers typically include a transparent

core(8 m)surrounded by a transparentcladding(125 m) material with a lower index

of refraction. Light is kept in the core by total

internal reflection16


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THE PASSENGER RESERVATION

SYSTEM

The Passenger Reservation System (PRS) iscomputerized reservation system for any trainfrom anywhere in country

This system has made the train journey quitecomfortable

When PRS system was not developed a stationcould give the reservation to the customer

Those train which get started from their stationbut after PRS get installed the customer can getinformation about any train running in India

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THE PASSENGER RESERVATION SYSTEM18


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Interactive Voice Response System

The IVRS is the arrangement of a computer and a

telephone set.

In this system interactive between telephone andcomputer are done and the results are in the form of

voice.

In railway it is used in online train informationsystem and passenger reservation enquiry system.

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Interactive Voice Response System20


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RAILNET

Rail net is nothing but an interconnection and

infrastructure medium of different railway zone and

division in the Indian railway

The rail net is a railway open system for quick datatransmission and data using resources at different

places

It is purely under railway and information and data

are collected at the headquarter through different

divisions and unit

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ROUTERS

Routers are small physical

devices that join multiple

networks together.

They use protocols such as ICMPto communicate with each other

Technically, a router is a Layer 3

gateway device.

Meaning that it connects two or

more networks.

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CONCLUSION

I have learned about process of railway

signaling and controlling railway network

I have also learned about process like

interlocking and systems like PRS

I have also observed the atmosphere in which

engineers of Indian railway works

Overall it was a great experience during the

training period

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REFERENCES..

www.indianrailway.gov.in

www.indianrail.gov.in

http://searchtelecom.techtarget.com

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