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Drone HF (History (1849 (Austrian balloons.), 1916 (World War 1 – Hewitt…
Drone HF
History
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1916
World War 1 – Hewitt-Sperry, the first unmanned aircraft.
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Sensors
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Accelerometer
the accelerometer is the acceleration force which the drone is then subjected to in all three axis X, Y and Z. Which is then used to measure the velocity of the drone.
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Magnetometer
Magnetometers used in aviation to measure the Earth's magnetic field in order to show the correct orientation.
Rangefinder
The Drone sends out a laser and it then determine how long it takes before it hits an object to determine how for the range is.
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Obstacle avoidance
Obstacle detection and collision in 2 directions. then it fuses these sensors together, its main camera and sophisticated algorithms into its system.
Parts of Drone
The frame
What is it made of
Plastic, fiberglass, aluminium and carbon fiber are the most commonly used
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Batteries
What type of batterie
Lithium Battery
lithium battery packs are used to power quadcopter. They have two common chemistries in the batterie called, Lithium polymer (LiPO) and lithium polymer high voltage (LiHV).
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GPS
The technology allows a drone to autonomously fly to preprogrammed points. Also the system can instruct the drone on how fast, how high, and where to fly.
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Flight Computer
FlytPOD is flight computer system, It is a platform that supports running intelligent algorithms onboard, payload integration, seamless connectivity and custom user interfaces on a mobile app.
How to fly a drone
Quadcopter controllers
Roll
The Roll moves your quadcopter left to right. It’s done by pushing the right stick on your transmitter to the left or the right.
Pitch
Pitch is done by pushing the right stick on your transmitter (Controller) forwards or backwards. this then results in the drone moving forwards and backwards
Yaw
The yaw is when it rotates the quadcopter clockwise or counterclockwise. This is done by pushing the left stick to the left or the right.
Throttle
The Throttle gives the propellers on the quadcopter enough power to lift the drone and get it airborne.
The transmitter
The transmitter is a hand-held controller that lets you pilot the quadcopter and control its flight pattern.
How does it work?
When you make an adjustment with the sticks on the controller, it sends a signal to your drone telling it what to do next.
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Safety Precautions
If you’re about to crash into something/someone, turn the throttle down to zero on the drone, so you don’t potentially destroy your quadcopter, injure somebody, or injure yourself.
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Unplug or take out the battery of the drone before doing any work on it, so it doesn't turn on accidentally and the propellers start spinning.
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Airfoils
An airfoil is any surface, such as a wing, that provides aerodynamic force when it interacts with a moving stream of air
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Bernoulli’s principle and Newton’s law explain the resulting effect of the oncoming airstream and the pressure differential on the wing’s surface.
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3 axes of Flight
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Four Forces of Flight
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weight
The weight of an object is the force of gravity on which the object may be defined as the mass times the acceleration of gravity.
thrust
When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction on that system.
drag
drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.
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Bernoulli’s Principle
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Bernoulli’s equation describes the basic principle of airflow pressure differential. Known as “Bernoulli’s principle,” it was theorised that as the velocity of a fluid (such as air) increases, its pressure decreases.
As air enters the tube, it is traveling at a known speed (velocity) and pressure.
The process was that total energy of the airstream is conserved. An increase in velocity was accompanied by a decrease in pressure.
