The document discusses night vision systems in automobiles. It describes two types of night vision systems: active illumination and thermal imaging. Active illumination uses infrared technology to detect pedestrians up to four times farther than headlights, while thermal imaging uses heat sensing to see in complete darkness. Night vision systems have advantages like reducing accidents and providing a greater viewing range, though they also have disadvantages such as higher costs. Major automakers like Audi, BMW, and Mercedes-Benz have incorporated night vision systems into some of their vehicles.

1. SUBMITTED BY:
ANJALI
B.TECH 3rd year
127364008

2.  Introduction
 Principle of Operation
 Working
 Advantages and Disadvantages
 Present Day Applications
 Conclusion

3.  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.

4. NIGHT VISION SYSTEM IN AUTOMOBILES
works on two phenomenon :-
ACTIVE ILLUMINATION THERMAL IMAGING

5.  This system can detect pedestrians up to four 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.

6.  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.

8.  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 IR sensor attached in vehicle's grille
illuminates very high beam.

9. 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.

10.  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.

11.  Higher cost of process
 Large quantity of costly and complex
equipments.
 Works poorly in warmer weather conditions
 Larger sensors are required

12.  Audi, BMW uses thermal imaging

13.  Mercedes-Benz uses active illumination

14. “ 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. ”