Drone

Drone

Especially on DJI

Wanho Choi

UAV

• Unmanned Aerial Vehicle (무인 항공기)

• An aircraft without a human pilot aboard • A remotely controlled aircraft

The Meaning of Drone

•A male working bee

•A continuous and monotonous humming or buzzing sound

•UAV

•Flying robot

Commercial Drones

Aircraft Attitude

Drone Attitude

yaw pitch roll throttle

Flying Principle of Quadcopter

Flying Principle of Quadcopter

principal of action and reaction vector decomposition

http://www.danubewings.com/helicopter-translating-tendency-drift/ http://www.danubewings.com/helicopter-forward-flight/

Flying Principle of Quadcopter

lift

weight

Flying Principle of Quadcopter

weight lift

Flying Principle of Quadcopter

weight lift

Flying Principle of Quadcopter

Flying Principle of Quadcopter

Flying Principle of Quadcopter

Flying Principle of Quadcopter

How to install propellers

front

back

right left

How to install propellers

front

back

right left

DJI (

大疆創新

,

다장혁신)

• A Chinese commercial manufacturer

• It was founded in 2006 by Frank Wang (Wang Tao, 汪滔). • About 70 percent of the commercial market worldwide

Phantom 2 Phantom 3 S900 / S1000 Matrice 100 Inspire 1 Inspire Pro

DJI Drones

Phantom 2

Phantom 3

Inspire 1 S900 / S1000

Matrice 100 Inspire Pro

DJI Matrice 100

Matrice 100 Guidance Manifold

fully customizable and programmable

flight platform visual sensing system embedded computer

dual battery compartments ~ 40 min. flights

customizable mounting customizable balancing

~ 5 km remote control full mobile app. support

velocity data

obstacle distance data IMU data

ultrasonic data

grey-scale image data depth image data

Quad-core, 4-Plus-1™ ARM NVIDIA Kepler GeForce

2 GB DDR3L RAM 16 GB eMMC 4.51 storage 10/100/1000 BASE-T Ethernet 4,250,000 KRW + 200,000 KRW (battery) 1,290,000 KRW + 110,000 KRW (conn. kit) 689,000 KRW

How to control drone

How to control drone

Hovering

How to control drone

DJI Inspire 1 - Flight Mode

• P-mode (Positioning): It works best when GPS signal is strong.

There are three different states of P-mode, which will be

automatically selected by the Inspire 1 depending on GPS signal strength and Vision Positioning sensors:

GPS Vision Positioning

P-GPS O O

P-OPTI X O

DJI Inspire 1 - Flight Mode

used for stabilization. The aircraft uses only its barometer to

stabilize. The aircraft can automatically return to the Home Point if remote controller signal is lost and the Home Point was recorded successfully.

• F-mode (Function): Intelligent Orientation Control (IOC) (such as

course lock, home lock, point of interest, follow me, waypoint, etc) is activated in this mode.

DJI Simulator

• Supported OS: IOS, Android, Windows 7, 8, and 8.1

Propeller Installation Kits

Propeller Installation Kits

Propeller Installation Kits

1360s

• The 1360S Quick Release Propellers improve the performance

of the Inspire 1 series at high-altitude locations.

• A larger propeller pitch increases the aircraft's propulsion

Two Types of Batteries

TB47 TB48

capacity 4500 5700

max. flight time 18 min. 22 min.

To Increase Battery’s Lifetime

GPS

http://www.howtechnologywork.com/how-does-a-gps-work/ http://nptel.ac.in/courses/105102015/module%206/gps.htm

Two Types of GPS

✓ _{About 1~5m global shift error}

• Professional RTK (real-time) GPS ✓ _{No shift}

✓ _{Accuracy: 2~4cm}

Vision Positioning System

• It uses ultrasonic and image data to help the aircraft identify

its current position.

• With the help of it, your DJI drone can hover in place more

precisely and fly indoors or in other environments where there is no GPS signal available.

Cameras for DJI Drones

ND (Neutral-Density) Filters

http://www.phantomfilters.bigcartel.com/product/4-pack-neutral-density-filters-for-dji-phantom-3-professional http://www.aliexpress.com/store/product/3pcs-Gradual-ND2-ND4-ND8-Filter-Kit-Set-for-Cokin-P-Series-G-ND2-G-ND4/813648_1431615397.html

Gimbal

• The gimbal is the component that keeps the camera steady

while the aircraft moves, compensating for movements from vibrations and sudden shocks.

• The gimbal is also responsible for controlling the direction

the camera is pointing in.

Vibration Absorbing Board

• The anti-vibration gimbal mounting plate connects the gimbal

with the aircraft body and reduces vibrations to make sure that your camera is always stable and level.

DJI Flight Apps.

GO

CL (Course Lock)

• Course Lock allows you to lock the orientation of the aircraft,

while moving the aircraft relative to an external linear coordinate system.

HL (Home Lock)

• Home Lock moves the aircraft relative to an external circular

coordinate system, with the origin called the Home Point. This means that pushing forward on the remote will move the

aircraft directly away from the Home Point, pushing back will move the aircraft directly towards it, and pushing left or right will move the aircraft in a circular path around it.

POI (Point Of Interest)

FM (Follow Me)

Waypoints

• Waypoint: Physical locations that the aircraft will fly to

• Action can be added to waypoints, which will be carried out

when the aircraft reaches the each waypoint.

Drone Accidents

poor control abrupt trouble

For Safety

• Parachute

192 Future Uses for Flying Drones

http://www.futuristspeaker.com/2014/09/192-future-uses-for-flying-drones/

1. 조기경보 시스템 (Early Warning Systems) 2. 긴급 서비스 (Emergency Services)

3. 뉴스 레포팅 (News Reporting) 4. 배달 (Delivery)

5. 사업활동 모니터링 (Business Activity Monitoring) 6. 게임 (Gaming Drones )

7. 스포츠 (Sporting Drones)

8. 엔터테이먼트 (Entertainment Drones ) 9. 마케팅 (Marketing)

10. 농업 (Farming and Agriculture) 11. 목장 (Ranching Drones)

12. 경찰 (Police Drones )

13. 스마트 홈 (Smart Home Drones) 14. 부동산 (Real Estate)

15. 도서관 (Library Drones)

16. 군대 스파이 (Military and Spy Uses) 17. 건강 관리 (Healthcare Drones)

18. 교육 (Educational Drones)

19. 과학과 발견 (Science & Discovery) 20. 여행 (Travel Drones )

21. 로봇 팔 (Robotic Arm Drones)

22. 현실왜곡 (Reality Distortion Fields) 23. 참신한 아이디어 (Novelty drones)