speed adaptation

8/8/2019 Speed Adaptation

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Intelligent Speed AdaptationIntelligent Speed Adaptationin vehiclesin vehicles

Date: 01/08/09Date: 01/08/09

Tamil Eniyan. MTamil Eniyan. M08MEA02608MEA026

M.TechM.Tech- -Automotive Electronics Automotive Electronics

Review - 0


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IntroductionIntroduction

The Intelligent Speed Adaptation is done in vehicle using

GPS technology by tracking the location of the vehicle

This system does not require a preloaded map or route

for its operation

This system is a low cost and effective system which

requires less memory and simple algorithm.


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Existing speed adaptation techniquesExisting speed adaptation techniques

RF id based systems This system uses RF id tags on the sign boards, the receiver

module in the vehicle receives the signal at various speed zonesthrough these RF tags.

This systems can be employed only for slow vehicles. Practically it

cannot be employed in the highway for vehicles with high speed like100kmph

Optical recognition systems This is done by camera based detection, the camera records

continuously, when a sign boar is approached, the sign is

recognized by image processing techniques.This system uses complex algorithmUses much resourcesSome critical cases when the sign board is covered by treebranches, the system does not detect the sign board .


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Need for a new systemNeed for a new system

To over come the limitations of the other Speedadaptation systems.

To reduce the memory requirement of conventional GPSspeed adaptation techniques.

To reduce the system cost and enhance the systemperformance to provide dynamic update of information.


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Block DiagramBlock Diagram

GPSReceiver

RF

Receiver

C ontroller Memory

Display& Alert

Speedcontroller

RFTx

Myposition?

lat=12.970649lon=79.159310

1

2

3

4

TOLLGATE


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Step 1Step 1

Transmitter sends adata to the vehicle.

The data is a table of information of latitudeand longitude and itscorresponding roadsign, speed limit..


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Step 2Step 2

GPS receiver requestsits position data tosatellite.


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Step 3Step 3

GPS receiver receivesits position data fromsatellite. lat=12.970649

long=79.159310


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0001 |76.11004 |12.19256 lat= 12.970649long= 79.159310

C urrentPosition

From GPS

A sample datafrom receiveddata.

YES

Step 4Step 4The current position is comparedwith the data of table received.

When the current positionreaches the position of data,corresponding alert is done.

C heck for thecorresponding

sign & speed limit

Alert the driver /Limit speed

=?


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Time planTime plan

August Literature surveySeptember Selection of components/

Study about components selected( microcontroller, GPS, Speed control)October

November Basic hardware designDecember Full Hardware Implementation

( Speed Zone Detection & Alert)

January Programming

February Stage II development( speed control implementation)March Project C ompletion

April Report Preparation


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Software ToolsSoftware Tools

Microcontroller Programming tools Keil IDE

MPLAB IDE

Flashing tool


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Hardware modulesHardware modules

GPS Receiver

Microcontrollers

Wireless Transmitter / Receiver

C omputer Interface

Display unit

Speed C ontrol Module


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Reference

N. Agerholm,R, Waagepetersen,N. Tradisauskas,and H. Lahrmann2008 - IEEE Intelligent Vehicles Symposium Intelligent Speed

Adaptation in Company Vehicles

Riaz Sayed, Pierre Delaigue, Jeremy Blum, Ali Mortazavi and Azim Eskandarian 2007-01-1321 SAE TE C HNIC AL PAPERSERIESDevelopment of an Intelligent Multimode Speed AdaptationSystem

European Road Safety Observatory

Intelligent Speed Adaptation (ISA) http://www.erso.eu/knowledge/content/04_esave/

University of Leeds and MIRA Ltd.Intelligent Speed Adaptation Literature Review and scoping study- January 2006 http://www.tfl.gov.uk/assets/


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Thank youThank you


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