The document discusses black boxes, which record data and audio to help investigate accidents. It describes the history of black boxes beginning in the 1950s and their applications in aviation and automobiles. The key components of aircraft and car black boxes are explained, including how they are designed to withstand high heat and impacts. Black boxes provide vital information to determine the causes of crashes. The technology is expected to continue advancing to further assist accident investigations.
2. CONTENTS
Introduction
History
Applications
Salient Features
Car Black Box & its Components
Aircraft Black Box & its Components
Future Prospects
3. INTRODUCTION
In science and engineering, a black box is a device,
system or object which can be viewed in terms of its
input, output and Transfer Characteristics without any
knowledge of its internal workings. Its implementation
is "Opaque" (black).
4. HISTORY
First prototype was
produced in 1956 by
David Warren of the then
Aeronautical Research
Laboratories of
Melbourne, with civilian
aircraft in mind, for
explicit post-crash
examination purposes.
7. SALIENT FEATURES
Can withstand a prolonged exposure to a
1,110°C fire for an hour and 260°C heat for 10
hours (Aircraft).
Able to operate between -55° to
+70°C(Optimum Temperature).
Carries a minimum 25 hours of recording
data(Aircraft or Car).
Usually bright orange in colour.
9. What is a Car Black
Box?
MVEDR (Motor Vehicle Event Data Recorder), known
as Vehicle Black Box. GM and Ford are known to
have released vehicles equipped with MVEDR. By
recording the events and actions before the collision,
the car black box will help in reconstruction of the
events before the accident.
10. Why Do We Use it?
These devices were originally designed to monitor the
activation of the airbags, which in turn saves the driver
from fatal injury.
The car black box records the speed, acceleration,
sudden turns, breaking and other important actions of
the driver shortly before the collision.
11. How Does It Work?
Black Box features a
camera as well as a GPS
unit which collects the
performance data such
as accelerating, braking
and is stored
automatically to
a secure
digital (SD) and can be
reviewed on a
computer.
14. 1. GPS ANTENNAE
Space-based satellite
navigation system.
Provides location and
time information in all
weather conditions.
The final location is
being projected on the
screen.
15. 2. CAMERA
Records Interior and
Exterior Video.
Records Interior Audio.
Presence of IR LEDs,
supports night
recording.
16. 3.IR LEDs
Wavelength 700nm-1mm.
Conversion of ambient light
photons into electrons that
are then amplified by a
chemical and electrical
process into visible light.
Night Vision Surveillance.
19. Cheap Car Insurance.
Accident Investigators.
User Friendly & Easy Installation.
Location of any Places by means of GPS tracker.
Night Vision Surveillance (IR LEDs).
ADVANTAGES :
21. CONCLUSION:
In-vehicle monitoring (black box) technology is
rapidly increasing across the globe, with many
different forms of this technology now available.
Essentially they monitor how, when and where a
vehicle is being driven, record the data and provide
an analysis of it as feedback to the driver and other
parties. It has great potential to significantly improve
driving standards and reduce crash and casualty
rates, over the years to come.
23. What is an Aircraft
Black Box?
An Aircraft Black Box is a flight recorder used to
record specific aircraft performance parameters,
such as acceleration, altitude, etc. Moreover it is
also used to track any ambient noise in the
cockpit, such as switches being thrown or any
knocks or thuds, by means of a Cockpit Voice
Recorder (CVR).
24. Why do we use it?
They do nothing to help the plane when it is in
the air, but these equipment are vitally important
when the plane crashes, as they help the crash
investigators to find out what happened just
before the crash.
25. What is it made of?
i. Aluminium Housing
ii. High-temperature Insulation
iii. Stainless-steel Shell
iv. Mounted on a Steel plate
26. Inside the Black Box:
Flight Data Recorder(FDR).
Cockpit Voice Recorder (CVR).
27. FLIGHT DATA
RECORDER
It is an electronic device employed to record
any instructions sent to any electronic systems
on an aircraft. It is a device used to record
specific aircraft performance parameters.
Popularly referred to as a "black box" by the
media.
28. HISTORY
First Generation Foil Recorders (1950).
Second Generation Tape Recorders (1965).
Third Generation Solid State Recorders (1990).
29. FOIL RECORDERS
In 1958 came into existence.
Boeing 707, Douglas DC-8.
To record the actual
conditional parameters of the
aircraft, i.e., heading, altitude,
airspeed, vertical accelerations,
and time.
.
30. Parameters mentioned were embossed onto a
metal foil (Incanol Steel).
Each single strip of foil capable of recording 200
to 400 hr of data.
This metal foil was housed in a crash- survivable
box installed in the aft end of an airplane.
In 1965, the recorders were upgraded from their
original specification of 100g impact to 1,000gs.
31. The canister in the tail
containing the FDR.
The FDR inside the
canister.
Boeing 707
32. TAPE RECORDERS
. Introduced in the 1970’s.
Magnetic Tape as the
recording medium.
It is 300 to 500 ft long and
can record up to 25 hr of
data.
The first product to use this
was the Cockpit Voice
Recorder (CVR).
33. The Fairchild CVR were part of this second
generation of recorders.
Magnetic Tape Recorders have the
potential to record up to 100 parameters.
34. SOLID STATE RECORDERS
Became commercially practical in 1990
Storage of data in semiconductor memories or
integrated circuits, rather than using the older
technology of electromechanical methods of
data retention.
The SSFDR, Model F1000, was the first certified
flight recorder to use this new technology.
35. Includes Digital Data Transmission systems
which convert the base data inputs into a
binary signal, i.e. a pulse which represents
either an “on” or “off”, or specifically a “1” or
a “0.”
37. COCKPIT
VOICE
RECORDER
A device used to record the audio environment in
the flight deck for accidents and incident
investigation purposes. It records and stores the
audio signals of the microphones and earphones
of the pilots’ headsets and of an area microphone
installed in the cockpit.
41. 1.INTERFACE BOARD
Introduced in the late 1980s.
A data link interface was
introduced between the ACARS
management units and Flight
management systems.
Enables Flight plans and
weather information to be sent
from the ground.
42. 2.AUDIO COMPRESSOR
The audio data collected from:
i. Pilot's Headset
iii.Co-Pilot's Headset
iv.Third Crew Member Headset
iv.Centre of the Cockpit
43. The recorded waveform is reduced to differing extents
for transmission with or without some loss of quality by
means of audio compression board.
AUDIO WAVEFORM
45. DATA ACQUISITION SYSTEM.
Converts acquired data send from the ground to
ACARS management to Raw Binary Data, used
for FDR Data Listings and Data Plots.
46. 4.UNDERWATER LOCATOR
BEACON
It’s a device fitted to
CVR and FDR. When
triggered by water
immersion, the ULB
emits
an ultrasonic pulse of
37.5 kHz at an
interval of once per
second.
51. Salt Water Submersion.
Fluid Immersion
Other Techniques
Deep Sea Submersion Pin Test
52. ADVANTAGES:
To trace the reason behind Plane Crash
Improved Air Security
Not easily damaged
Easy Installation
Less Space Requirement for Installation
54. CONCLUSION
An Aircraft Black Box mainly comprises of FDR
and CVR. Both the FDR and CVR are invaluable
tools for any aircraft investigation. These are often
the lone survivors of airplane accidents, and
provide important clues to the cause that would be
impossible to obtain any other way. As technology
evolves, black boxes will continue to play a
tremendous role in accident investigations.
55. FUTURE PROSPECTS
As technology continues to develop it is
likely that Black Boxes will become more
and more sophisticated and more reliable,
giving Air and Car Crash Investigators
more to go on when painstakingly trying to
piece together what has caused such
accidents.