1. Unmanned Aircraft Systems
WCHS JROTC
Unmanned Aircraft Systems
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2. Agenda Drone Qualification Plan Flight Log Overview of UAS
History of UAS
Roles for UASs
Quadcopter Theory of Operations
Videos
Conclusion
Hello, and welcome to PA-942 Unmanned Aircraft Systems Robotics.
Here’s what we will be covering tonight. (Briefly go over list; have extra copies of syllabus). (Pass out name tags)
But before we delve into our subject matter, let’s get to know a little bit about each other.
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3. JROTC UAS Qualification
Hand out
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4. JROTC UAS Flight Log Hand out
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5. Learning Objectives
Know the History of Unmanned Aircraft Systems (UAS)
Differentiate between the various applications of UAS.
Classify the military and civilian users of UAS.
Summarize the current and potential uses of UAS/UAVs.
Describe how a quadcopter UAS operates.
Evaluate the validity of concerns about the use of UAS/UAVs in various applications.
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6. Overview of UAS
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7. Robotics and UAS Robots: UAS – Unmanned Aircraft Systems
Machines that sense and interact with their environment, make decisions, act
Autonomy
UAS – Unmanned Aircraft Systems
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8. Unmanned Aircraft System
Human
Input
Command & Control Elemdnt
Launch & Recovery Element
Unmanned Aircraft System
Payload
Aircarft
Communication Dat Link
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9. Video
UAV History
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10. UAS History Open Edmodo to your resources folder
Let’s watch this video
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11. Roles for UASs The Three Ds
Dull:
Extended Surveillance
Pattern of Life
Dangerous:
Contested Airspace
Electronic Warfare
Forest Fire Control
Dirty:
Contamination Monitoring
Damaged Structure Inspection
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12. Other Roles Covert: Research: Environmental Police and Military
Aeronautical Testing
Environmental
Studies of the environment with min impact
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13. Military Uses Long range high and medium alt surveillance
Base security
Target identification and designation
Radio & Data Relays
Electronic Warfare
Monitoring Contaminated areas
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14. Civilian Uses Aerial Photography Agriculture Fire Services
Search and Rescue
Powerline Inspection
Environmental Protection
Policing
Gas and Oil Pipeline Patrol
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15. Civilian UASs
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16. Quadcopters Most Common Small UAV Advantages Disadvantages Advantages:
Small size safer for close interaction
Can manuever in buildings and tight spaces
Rotor attached directly to the motor min mechanical linkage
Use of 4 rotors allows each to be smaller than an equivalent single rotor
Disadvantages:
Ambitious development
Complexity in calcualation and design
Reliablity and Hobby perspective
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17. Quadcopters How it works:
Four rotors attached directly to electric motors
Two spin clockwise, two spin counterclockwise
Precise/accurate control of speed enables movement in all axis
Mechanically simple
Inherently unstable
Complex and heavy computing requirements
These propellers are fixed pitch, two will spin clockwise and the other two will spin counter clockwise. By precisely and accurately spinning these four propellers at different speeds, all the common directional movements of a standard helicopter are attainable - Hover, forward/backward movement, left/right movement, and yaw (turn rate) movement.
This makes the quad rotor and other multi rotor RC helicopters mechanically very simple with hardly any moving parts compared to conventional mechanically complex collective pitch and even fixed pitch RC helicopters. In most cases there are only 4 moving parts on the majority of quad rotor helis; the 4 spinning motor shafts which are directly connected to the 4 spinning propellers - that's it!
The reason RC quadrocopters and multi rotors are fairly new on the scene is the complex and rather heavy computing/processing power required to accurately control all the propellers to not only move the heli about, but to keep it stable. Multi rotors are inherently unstable. Only when all propellers are spinning at the exact same rate, producing equal amounts of thrust and torque, and experiencing equal amounts of drag is hover equilibrium achieved. Controlling this manually is all but impossible and only because of today’s solid state gyro and accelerometer technology, efficient and fast responding brushless or coreless motors, coupled with small micro processors to deal with the hundreds of calculations and control commands every second, can these things fly at all.
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18. Quadcopters How it works: https://www.youtube.com/watch?v=DNc8o9CZL HU
These propellers are fixed pitch, two will spin clockwise and the other two will spin counter clockwise. By precisely and accurately spinning these four propellers at different speeds, all the common directional movements of a standard helicopter are attainable - Hover, forward/backward movement, left/right movement, and yaw (turn rate) movement.
This makes the quad rotor and other multi rotor RC helicopters mechanically very simple with hardly any moving parts compared to conventional mechanically complex collective pitch and even fixed pitch RC helicopters. In most cases there are only 4 moving parts on the majority of quad rotor helis; the 4 spinning motor shafts which are directly connected to the 4 spinning propellers - that's it!
The reason RC quadrocopters and multi rotors are fairly new on the scene is the complex and rather heavy computing/processing power required to accurately control all the propellers to not only move the heli about, but to keep it stable. Multi rotors are inherently unstable. Only when all propellers are spinning at the exact same rate, producing equal amounts of thrust and torque, and experiencing equal amounts of drag is hover equilibrium achieved. Controlling this manually is all but impossible and only because of today’s solid state gyro and accelerometer technology, efficient and fast responding brushless or coreless motors, coupled with small micro processors to deal with the hundreds of calculations and control commands every second, can these things fly at all.
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19. What We’ve Covered So Far
History of UAS
Timeline in resources folder
Uses and Roles of UAS
Military and Civilian Roles
The 3 D’s
Theory of Operation of a Quadcopter
Hover, pitch, roll, and yaw
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20. Today UAS Concerns and Opportunities Practical Applications Video
Short Quiz
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21. The D Word Drones: Publicity Hobbyists
Unfeeling killing machines
Invasion of Privacy
Publicity
Hobbyists
FAA regulations and local and state laws
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22. UAS Concerns Privacy Regulation and Rules for use Airspace integration
Interference with emergency operations
Mishaps
War by Robotics
Insurance and Liability
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23. UAS Opportunities The 3 Ds
Smaller size (2-4% of weight, 25% of size, 3% of fuel of a light aircraft)
Civilian Market
Military Development
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24. Practical Applications
Let’s look at some practical applications of UASs
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25. Corvette Museum Sink Hole
Engineers and students from Western Kentucky University used a UAS to document, via video, a sinkhole that opened up under the Corvette Museum in Bowling Green, Kentucky.
The engineers were able to get video footage from within the sinkhole, allowing them to provide an initial damage assessment without the need of putting anyone in harm’s way.
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26. Uses of UAS https://www.youtube.com/watch?v=vkEDwOidW_Q 11/11/2018
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27. Robots That Fly http://www.youtube.com/watch?v=4ErEBkj_3PY 11/11/2018
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28. Quiz: Robots That Fly
Provide some examples of aerial robotic applications.
Describe how a quad UAV operates (roll, pitch, climb, etc.).
Describe what element in nature is the example used to develop multiple UAV swarming formations.
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29. Summary Drone Qualification Plan Flight Log Overview of UAS
History of UAS
Roles for UASs
Quadcopter Theory of Operations
Videos
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30. Dancing Robot Airshow http://www.youtube.com/watch?v=I3MhglRrcYk Video
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31. Robot Quadrotors Perform James Bond Theme
Video
Robot Quadrotors Perform James Bond Theme
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