speed camera
TRANSCRIPT
SPEED DETECTION OF MOVING VEHICLE USING SPEED
CAMERAS
Introduction What is speed camera?A speed camera is an automated ticketing machineIt includes a camera mounted invariably behind road signs or trees It can be extremely handy to monitor the vehicleA new method develop for both car extraction and speed detection
SPEED CAMERAS
HISTORY
• The Dutch Company Gatsometer BV,which was founded in 1958 produced the Gatsometer
• The first Radar for use with road traffic in 1971• The first mobile speed traffic camera in 1982• Speed camera was introduced in West London
in 1992• Following their success in reducing speed was
expanded to many other areas in Great Britian
BASIC PRINCIPLE INVOLVED IN SPEED CAMERAS
RADAR makes use of electromagnetic waves to detect objects
It gives information about speed, distance of objects
It makes use of Doppler effect to determine vehicle speed
INTRODUCTION TO DOPPLER EFFECT
The apparent change in pitch due to relative motion between source and observer
The apparent pitch produced by sounding body appears to be higher than actual pitch
The principle of this effect is is well known in the study of sound known as Doppler effect
DOPPLER EFFECT
The principle of speed camera that is Doppler effect can be described by the formula
fM = 2vfEcos(α/c)
FROM THEORY TO PRACTICE
The basic of every speed camera is SHF generator
It can transmit the beam in specific directions
Power of oscillator is usually less than 10mw
It checks whether the measured speed exceeds the present value
VEHICLE SPEED DETECTION BY LIDAR
It does not makes use of Doppler effect
This system calculates the distance at which the object is and from the change in distance monitored in a specific time lapse
The frequencies here are higher and trickier to jam
TYPES OF SPEED CAMERAS
Gastrometer speed cameras
Peak traffic speed cameras
Speed spike cameras
Truvelo speed cameras
Specs system speed cameras
Gastrometer speed cameras
Manufacturer of the UK’s red light camera
Red light camera was originally used to measure red light offecences
PEAK TRAFFIC SPEED CAMERAS
Founded in 1990 and based in the Netherlands
It uses either loops within the road surface or radar
SPEED SPIKE
these new type of cameras communicate with each other via the GPS Satellite Network
It can track a vehicle using number plate recognition
allow two cameras to 'talk' to each other
Truvelo speed cameras
This system is designed to take photographs of the front of a passing vehicle.
This allows the picture taken to show the driver of the vehicle as well
It uses an infra red flash which produces no visible 'flash' to the approaching driver
SPECS SYSTEM SPEED CAMERAS
Speed Violation Detection Deterrent, SVDD is the digital brain which the SPECS system is based upon
It consist of two video cameras each fitted with infra red illuminators.
It gives the ability to work 24hrs 7days a week
APPLICATIONS
Operation during the rain or mist
Measurement ranges
Reaction time
Continuous transmission
.
COMMUNICATIONS AND PUBLIC AWARENESS
A key objective was to ensure that people are made fully aware of the speed cameras
make people aware of the speeding and benefits of speed cameras
make awareness in the local level, national level and also in government level about these speeding and casualties due to speeding
ADVANTAGES OF SPEED CAMERA
Speed costs livesEconomic benefitSpeed camera’s are a tax on the richGood for environmentHigh speed is bad for communities and other
type of exercise
CRITICISMS OF SPEED CAMERAS
They cause accidents because people brake from 40 to 30mph.
Speed is not the main cause of death.
Countries without speed cameras have lower death rates.
FUTURE TECHNOLOGIES
A speed camera designed to catch speeding motorists
The asset camera should be able to pick out drivers who are not wearing
identify tailgating can also note number plates and recognise
cars with out-of-date tax discs and no insurance.
CONCLUSION
A new approach for vehicle extraction and speed detection was proposed
These cameras reduces accidents and protects the innocent road users
The system also provides location and velocity information for each vehicle as long as it is visible-
It can reduce 40 percent it of accidents by the year of 2010.
Thank you
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