Technical presentation for ECE ad EIE students..

1. ANTI COLLISION DEVICE
(RAKSHA KAVACH)
Submitted By:
DHRUPAD CHAKRABORTY
5th SEMESTER
INSTRUMENTATION AND CONTROL ENGINEERING
ROLL NO -16504013013
REGISTRATION NO:131650110382 Of 2013-14

2. “Train Collision”-A challenge accepted
• 2nd August,1999- Head-On-head collision in Gaisal , West
Bengal- 268 died, 359 injured .
• 2nd December,2000- Sarai Banjaara rail disaster in Punjab – 46
died and 150 injured.
• 3rd January, 2003- Ghatnandur rail crash in Maharastra – 18
died and 41 injured .
To get rid of these kind of accidents a team of Konkan
Railways produced a prototype of Anti Collision Device(ACD)
based on Microprocessor and Global Positioning System
(GPS) technology.

3. What is an ACD?
• An ACD is a self acting Microprocessor based data communication
device designed and developed by Konkan Railways.
Features Of ACD:
 It prevents;
a. Head-On-Head collision,
b. Rear End collision,
c. Side collision.
d. Accident at label crossing gates (both unmanned and manned).

4. Types of ACD
ANTI COLLISION
DEVICE
(ACD)
ANTI COLLISION
DEVICE
(ACD)
ON BOARD ACDON BOARD ACD TRACK SIDE ACDTRACK SIDE ACD
LOCO
ACD
LOCO
ACD
GUARD VAN
ACD
GUARD VAN
ACD
STATION ACDSTATION ACD
LABEL CROSSING
GATE
ACD
LABEL CROSSING
GATE
ACD

5. Inside the ACD
• The heart of the ACD is an Intel 80386 processor that
uses the DM&P M6 Intel chipset. It (ACD) has an integrated
digital radio modem and works on the VxWorks
An ACD consist of;
GPS(Global Positioning System),
CCU(Command And Control unit),
Radio Trans-receiver,
ABU(Automatic Breaking Unit).

6. ACD- An Overview

7. Working Of an ACD

8. Loco ACD and some scenario
HWH S T N A P P R O A C H I N G
G 9 9 9 9 9 1 9 : 2 6
T R A I N A P P R O A C H I N G
G 9 9 9 9 9 1 9 : 2 6
T R A I N A H E A D
G 9 9 9 9 9 1 9 : 2 6

9. Station ACD and some scenario
A A A A S T N 1 9 : 2 6
A A A A S T N 1 9 : 2 6
A C D M AI N T R E Q U I R E D
A A A A S T N 1 9 : 2 6
M A N U A L S O S - L 9 9 9 9 9

10. Advantages of ACD
• Acts automatically to prevent collision.
• Does not depends on the human action.
• Easily adaptable and expandable.
• The Loco ACD operates directly from the engine battery .
• The LC gate ACD can be powered by solar power system , if
required .
• Very economical and cost effective .
• It does not require any inputs to be fed by the crew at the start
of journey , thus human error is eliminated

11. Disadvantages of ACD
• Other train is a ‘NON’ACD train .
• ‘Adequate’ braking distance at the speed is not available
when a ‘dangerous’ collision –like situation arises
suddenly .
• ‘Failure’ to brake power of the Locomotive/train .
• If two trains are running on a same but a curved track .

12. Cost of ACD
• Installation of ACD would cost about Rs.10-12 lacs per route
km and the project cost is estimated at about Rs.7,000 crores
for Indian Railways. This will cover about 64,000 route km, all
the 6,000-odd stations, 8,000 to 10,000 Interlock level
crossing gates and the 10,000-odd locomotives (engines).

13. Implementation
• Pilot project of "Provision of ACD Network" has been
successfully commissioned recently on the Northeast Frontier
Railway (of Indian Railways), covering 1,736 kilometers
(1,079 miles) of its Broad Gauge route.
• Final commissioning trials of ACD network installed on 760
kilometers (470 miles) of Konkan Railway.

14. Future
• A new ACD Version-II [now called Train Collision Avoidance
System (TCAS)] is under development by The Research
Designs and Standards Organization (RDSO) where as ACD
systems does not depend on Railway's signaling system.
• It can also be used in private vehicles as well as public
transports to prevent road accidents .

15. Bibliography
• https://en.wikipedia.org/wiki/Anti-collision_device.
• https://www.google.com/images/Anti_collision_device.
• Indian Railways Vision 020. Government Of India , Ministry Of
Railways( Railway Board), December,2009.
• Indian Railways Corporate Safety Plan(2012-2013), August 2003, Govt. Of
India , Ministry Of Railways.
• Railways Crossing Collision Avoidance system, Shirley et al.- September
2001.
• Budget presented by Honourable Union Minister Of Railway Smt. Mamata
Banerjee , April,2011.