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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