SUBMITTED BY: SUMEET KUMAR VISHWAKARMA MCA(LE), 4 TH SEM REGD.NO.-1425266046
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S U B M I T T E D B Y :
S U M E E T K U M A R V I S H W A K A R M A
M C A ( L E ) ,
4 T H S E M
R E G D . N O . - 1 4 2 5 2 6 6 0 4 6
CONTENTS
Introduction
Principle of Operation
Working
Advantages and Disadvantages
Present Day Applications
Conclusion
INTRODUCTION
An Automotive Night Vision System is a system to increase a vehicle driver's perception and seeing distance in darkness or poor weather beyond the reach of the vehicle's headlights.
The first car night vision system was implemented on the Cadillac 2000 DeVille, which used infrared technology to detect pedestrians.
PRINCIPLE OF OPERATION
NIGHT VISION SYSTEM IN AUTOMOBILES
works on two phenomenon :-
ACTIVE ILLUMINATION THERMAL IMAGING
ACTIVE ILLUMINATION
This system can detect pedestrians up to three times farther than the typical headlight range even in penetrating dense smoke.
It actively detects people near the roadway, highlighting potential hazards and allowing drivers to have more time to react to them.
Its high beam illumination warns the pedestrians as well.
THERMAL IMAGING
Thermal imaging is a heat-sensing technology that can see in complete darkness using temperature difference.
Electrical impulses are sent in the form of temperature values to an image signal processor that turns them into video data for presentation on a display.
WORKING
Systems use an LCD that's mounted on the dash, in the instrument cluster, or integrated into the head unit.
The front thermo graphic sensors detects the heat and processes the thermo grams to display images on LCD.
The Infrared sensor attached in vehicle's grille illuminates very high beam.
CAR WITH NVS MECHANISM
REPRESENTATION
The Night Vision system will warn the
driver if a pedestrian is present in the
danger zone (marked in red) in front of
the vehicle.
ADVANTAGES OF NVS
Reduce accidents.
Greater range of about 300 meters or 1,000 feet.
Can be switched on or off and doesn’t affect driving style
Works in almost every weather conditions.
DISADVANTAGES OF NVS
Higher cost of process
Large quantity of costly and complex equipments.
Works poorly in warmer weather conditions
Larger sensors are required
PRESENT DAY APPLICATION
Audi, BMW uses thermal imaging
Mercedes-Benz uses active illumination
CONCLUSION
“ The innovation and implementation of night vision system has a great impact on automotive session such as saving many lives from death reducing accidents at night…”
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