emergency alert system in vanet (fnl review)ppt
TRANSCRIPT
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EMERGENCY ALERT SYSTEM IN VANET
Guide name :Dr. R.Venkatesh M.E, Ph.D.
Presented by: S.Shanmuga priya B. Vijayalakshmi V.R.Vijaya
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Main objective:•Tracking the location of the vehicle.•Automatic call alert will sent to nearby
hospitals.•The damaged vehicle will start emitting a
sound(Alarm) of 120db,and all the lights present will start flickering.
•The main cause of the accident can be identified by a micro camera using air pressure sensors which is fitted at both ends of the vehicle.
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Abstract:•In real time no proper automatic
emergency alert systems are present.•In times of accidents a third party has to
call the ambulance services. • In the absence of a third party the
situation becomes more critical.•Lack of knowledge about the precise
location of the accident.
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Techniques used:• GPS(Global Positioning System): It provides location and time information anywhere
on or near the earth where there is an unobstructed line of sight to four or more GPS satellites.
• GSM(Global System for Mobile Communications): It is a cellular network which can be connected by
searching for cells in the immediate vicinity.• RFID(Radio Frequency Identification): It is a technology which can be used in
communication through the use of radio waves to transfer data between a reader and an electronic tag attached to an object for the purpose of identification and tracking.
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Other major techniques used:•Airbag Circuit-The airbag is a automobile
safety device which is reliable, the entire process happens in 20-30 milliseconds
•Vibration sensor-It passes an alert message if the vibration does not saturate.
•MEMS sensor-It detect the signal and sends it to the ARM controller.
•ARM controller-It provides high speed processing of data using pipelining technique.
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Airbag sensors:
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Architecture:
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Immediate alert system:
•Checking whether the accident is major or minor.
•Deployment of airbag along with siren(120-130 db).
•GSM modem sends an alert message to the nearest hospital using Google maps.
•The hospital track the precise location using GPS receiver.
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Flow Diagram of Immediate alert system:
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RFID communication:
•The vehicles within the reach of 200m can be detected by using RFID reader.
•Active RFID tags are used because they can transmit signal upto 100m.
•The base station or the RFID readers receive the signal and inform the vehicles travelling in that route about the accident ahead.
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RFID intersection with accurate distance:
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Dijkstra’s algorithm:
• Dijkstra's algorithm finds the shortest path from x to y in order of increasing distance from x. That is, it chooses the first minimum edge, stores this value and adds the next minimum value from the next edge it selects.
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Algorithm:• For each u G:• d[u] = infinity;• parent[u] = NIL;• End for• d[s] = 0; // s is the start point• H = {s}; // the heap • while NotEmpty(H) and targetNotFound:• u = Extract_Min(H);• label u as examined;• for each v adjacent to u:• if d[v] > d[u] + w[u, v]:• d[v] = d[u] + w[u, v];• parent[v] = u;• DecreaseKey[v, H];
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Route from accident location to nearest hospital using Google maps:
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Original route:
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Altered route:
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Result and Comparison:
•In this project the detection of the location of the accident is precise unlike prior approaches.
•Here the accident is identified with the help of airbag circuit ,vibration sensor , MEMS sensor.
•Here advanced RFID readers and tags with maximum coverage is used.
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Conclusion:•This system can overcome the problems
of lack of automated system for accident location detection.
•Consequently , the time for searching the location is reduced and the interference of the third party is not necessary.
•This project provides a feasible solution to traffic hazards and it saves time and reduces loss of lives.
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THANK YOU