SEMINAR ONANTI-COLLISION DEVICE NETWORKBy,RAVIKIRAN S1TJ14MD011

Introduction

ACD is a self acting microprocessor based data communicating device.

Installed on locomotive, guard vans, station areas and level crossing gates.

It uses radio frequency and global positioning system.

The Konkan Railway was the missing link between Indias commercial capital, Mumbai, and Mangalore. The 760-kilometre line connects Maharashtra, Goa and Karnataka States a region of criss-crossing rivers, plunging valleys and mountains that soar into the clouds.*

Used to detect any collision like situation in a range of 3km.

Acd makes loco intelligent and extends its capacity to detect.

The ACDs are multi functional.

Needs of ACDIt comprises of CCU,GPS,radio transmitter.The other module of ACD includes a GPS which picks signals from GPS satellite.GPS submits data to the CCU to extract the parameters .Another module is radio trans-receiver.

TheGlobal Positioning System(GPS) is a space-basedsatellite navigationsystem that provideslocationand time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites. It is maintained by theUnited Statesgovernment and is freely accessible by anyone with aGPS receiver.*

Final Module is Braking mechanism, which intimates the Ccu to take decision for applying either the normal brake or the emergency brake on the locomotive as the situation required.

ACD is an intelligent friend to the driver,which acts on its own without human intervention.

Features of ACDThe main feature is itself can estimates risks and react in consequnceAnother feature of invention is, calculation of position, calculation of stopping distance etc...Another is an alarm is given by position alarm device set.

Following Accidents are prevented by ACDDetection and Prevention of Head-on, Rear-end and Side Collisions.Speed limit imposition.Train approach warning for road users.Station Approach Warning to Drivers.Trains are on same tracks.

The situation in which ACD doesnt workOther train is a NON ACD Train.Insufficient braking distance.Failure of brake of the Locomotive.Inadequate reaction time.

Benefits of the ACDVery economical and cost effective.Easily adaptable and expandable.Does not degrade the existing safety level.Employs state-of-art hardware and software technology.No way had side equipment required, hence no requirement of Power.

No cabling on the track required (which is more expensive and cumbersome).It does not require any inputs to be fed by the people at The start of journey, thus human error is eliminated.Less prone to damages.

ApplicationsACDs can be implemented in railways to prevent collisions and reduces the human interventions their by protecting the lives.It can be used in heavy vehicles like cranes, earthmovers etc to prevent accidents and for their safe working in public places.ACDs can be used as a tracking device.

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ConclusionACD is used as a watchdog as they constantly remain in lookout for other train in bound with ACDs. ACDs can prevent the side collision that may occur due to infringement of adjacent track by a stopped or a 'parted' train, respectively. Since it is very economical and cost effective it can be used in all type of trains.

The Konkan Railway was the missing link between Indias commercial capital, Mumbai, and Mangalore. The 760-kilometre line connects Maharashtra, Goa and Karnataka States a region of criss-crossing rivers, plunging valleys and mountains that soar into the clouds.*TheGlobal Positioning System(GPS) is a space-basedsatellite navigationsystem that provideslocationand time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites. It is maintained by theUnited Statesgovernment and is freely accessible by anyone with aGPS receiver.*

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