PDF문서08. Apparatus and method for playing video in real time.pdf

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Korea Aerospace Research Institute  Promising Technologies for Commercialization

Outline of Technology

TLO of the KARI

Person-in-charge

Senior Administrator Moon-Hee, Cho

E-mail : moonyxp@kari.re.kr
R&D Performance Diffusion Division 

Apparatus and 
Method for 
Playing Video in 
Real Time

Technology related to apparatus for playing 
3-dimensional video of aircraft using aircraft 
information transmitted via communication link in 
flight tests of unmanned aerial vehicle.

Ground Control System

Inventor

Chief Researcher Kim, Jong-Uk

Team

Flight Test Team

Status of right

• US : 9547992

Title

• APPARATUS AND METHOD FOR PLAyING VIDEO 

BASED ON REAL-TIME DATA 

■ Problems of conventional art

• A conventional video playing apparatus is being widely 

used for post-processing of flight data or in simulation 
systems, and simulation environment includes a ground 
control system, a flight control computer, a computer 
to simulate a mounted system, a motion modeling 

computer, a 3D video computer and a screen.

• While these conventional video playing apparatuses 

transmit an orientation and position of the aircraft, 

and actuator information to the 3D video computer 

to display configuration and position information 

of aircraft, the data used for displaying is limited 

to simulation data, and is mainly used during pilot 

training in virtual environment, and thus a range of the 

use is limited.

Conventional simulation environment

Orientation and position of aircraft

Displacement of actuator

Motion modeling computer

3D video computer

Displacement of actuator

Command information

Actuator command

Orientation and position of aircraft

State information

Illustrating 3-dimensional video of 

aircraft using simulation data

Sensor data

Computer for stimulating mounted system

Flight control computer

Ground control system


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Reliability and demand assessment stage

Technical Readiness Level

TRL 1

TRL 2

TRL 5

TRL 6

TRL 7

TRL 8

TRL 9

TRL 4

Technical features and advantages

Technical detail

TRL 3

Aircraft information

Geographic information

R e c e i v i n g   o r i e n t a t i o n   a n d 
position information of aircraft 
from RTC of ground control 
system to display received 
results in real time.

Receiving position information 
of aircraft to display received 
results in real time

Distinctiveness
•  Flight data is received in real time to display a 3-dimensional video of information of an aircraft 

such as a position, speed and attitude, so that operational stability using geographic information 

and 3D aircraft information, and a situation recognition rate can be increased to be applicable to 

precision relative navigation using 3D information extended from 2D information.

Technical effects
•  The attitude and position of the aircraft can be visually identified using real-time data transmitted 

through a communication system during actual flight.

The "smart unmanned device" development project has been promoted, and hardware and 

software necessary for ground control that controls a smart unmanned device have been 

developed since 2002. There has been an example of technical transfer of a ground control 

system for an unmanned aerial vehicle based on the obtained technology.

• Conventionally, an internal pilot can know an attitude and position of the aircraft only as 

numbered information, however, the pilot can visually identify the attitude and the position of the 
aircraft using the apparatus for playing a video based on real-time data, and thus it is helpful for 
the pilot when operating the aircraft.

• When the apparatus for playing a video based on real-time data is used in flight tests, flight 

information analysts can identify the attitude and the position of the aircraft at a glance, and thus, 

can determine a reaction of the aircraft with respect to an operational command at a glance and in 

a very short time.


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08

Market and future prospects

Apparatus and 

Method for 

Playing Video in 

Real Time

• The ground control system is an essential element for 

operating an unmanned aerial vehicle, and about 5 and 6% 

of the expenditures for development of the unmanned aerial 

vehicle out of the development of the smart unmanned aerial 

vehicle is injected into the ground control system.

•  The unmanned aerial vehicle market is expected to grow at 

an average annual rate of 8% by 2020 to be developed to the 

market size reaching 11.4 billion USD.  European countries, 
and Asian countries such as China and Singapore have 
actively participated in development of the unmanned aerial 
vehicle, and in particular, China has proceeded with its own 
development of the high altitude long endurance unmanned 

aerial vehicle and unmanned combat air vehicle.

•  The unmanned aerial vehicle market is expected to grow at 

an average annual rate of 8% by 2020 to be developed to the 

market size reaching 11.4 billion USD.  European countries, 
and Asian countries such as China and Singapore have 
actively participated in development of the unmanned aerial 
vehicle, and in particular, China has proceeded with its own 
development of the high altitude long endurance unmanned 

aerial vehicle and unmanned combat air vehicle.

2013

66

0

20

40

60

80

100

120

2022E

114

2010

52

Global Unmanned Aerial Vehicle Market Size


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• Companies that manufacture system/aerial vehicle design, aerial vehicle manufacturing, ground 

control system, ATC, supervisory equipment, radar, flight support system are the main market.

• As the intelligence and autonomy of the unmanned aerial vehicle are getting higher, one pilot 

can operate a plurality of unmanned aerial vehicles.  In addition, for this purpose, research into 
development of Man-Machine Interface has been actively progressing.

Apparatus for playing video in real time

Actuator

< Aircraft >

<Ground control unit>

Navigation sensor

Flight control computer

Ground communication system

Communication system

Ground control module 

Video playing unit

Sensor data

(orientation and position of aircraft)

State information

State information

Command 

information

Command 

information

Actuator

command

< One System >

< Universal Control System >

Applications