Construction of a Quadcopter

B.Tech

Aerospace Engineering

Semester (5)

Practical Evaluation-1

Faculty Guide:

Mr. Sarath Raj

Quadcopter Technology

By:

Michael Bseliss

Index

• Introduction

• Components of a Quadcopter

• Quadcopter Flight Control

• Applications of Quadcopters

• Advantages & Disadvantages

• Conclusion

Introduction

What is Quadcopter ?!

What is Quadcopter ?!

A quadcopter or a quadrotor helicopter is a multirotor copter that is

lifted and propelled by four rotors.

A quadcopter uses 2 sets of identical fixed pitched propellers; 2

clockwise (CW) or in one direction and 2 counter-clockwise (CCW)

or opposite direction

What is Quadcopter ?!

Quadrotor’s all four rotors work together to produce upward thrust

and only 1/4 of the weight is lifted by each rotor. So less powerful

motors are used, making it cost efficient.

What is Quadcopter ?!

1) Frame

2) Propellers

3) Electric motors

4) Battery – Power Source

5) ESC- Electronic Speed

Controller

6) Radio Transmitter and

Receiver

7) Flight Controller

Components of a Quadcopter

8) MicroController & Inertial

Measuring Unit

Components of a Quadcopter

The Frame

Components of a Quadcopter

The structure that holds or houses all the components together. They

are designed to be strong and lightweight.

WeightSize

Materials used

The Frame

It consists of 3 parts :

• The center plate where the electronics are mounted

• Four arms mounted to the center plate

• Four motor brackets connecting the motors to the end of the arms

Components of a Quadcopter

The Frame

Components of a Quadcopter

The Frame

Frames are usually made of:

• Carbon Fiber.

• Aluminum.

• Wood/ Plywood /MDF (Medium-density fiberboard)

4 propellers, 2 “normal” CCW , 2 “pusher” CW

Components of a Quadcopter

The Propellers

They are a bit similar to normal DC motors in the way that coils and

magnets are used to drive the shaft

Components of a Quadcopter

Electric Motors

LiPo (Lithium Polymer) batteries are used because it is light. NiMH

(Nickel Metal Hydride) is also possible. Cheaper but heavier.

Components of a Quadcopter

Battery – Power Source

Controls the speed of the motor.

Motors must all spin at precise speeds to achieve accurate flight, so

that ESC is very important

Components of a Quadcopter

ESC- Electronic Speed Controller

Four channels for a basic quadcopter is required

Components of a Quadcopter

Radio Transmitter and Receiver

The ‘brain’ of the quadcopter

Components of a Quadcopter

Flight Controller

To decide on how to control the motors.

IMU is the electronic sensor system which measures velocity,

orientation and gravitational forces of the quadcopter.

Components of a Quadcopter

MicroController and Inertial Measuring Unit

Such as GPS modules, cameras, ultrasonic sensors, barometers..etc

Components of a Quadcopter

Extended Options

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Quadcopter Flight Control

Applications of Quadcopters

3-D Mapping

Search and Rescue

Farming & Monitoring

Environmental Conditions

Capturing photos for events

(sport match)

Inspection of Building &

Monitoring Construction

Projects

Advantages of Quadcopters

Four small rotors have smaller

diameter than one large

helicopter rotor.

Takes less damage to rotors.

No need for a tail rotor which

generates no lift.

Easier to build four small blades

compared to large one.

They can traverse through

difficult terrains because of

their small size and there is less

risk of damage too.

They are significantly cheaper

and the cost in fuel and

maintenance is way lower than

regular airplanes.

Disadvantages of Quadcopters

Drones also contain limitations.

For instance, they cannot

communicate with civilians for

more detailed intelligence.

According to civilians drones

are viewed as an invasion force.

Battery power may be restricted

and may require frequent

charging.

The worst scenario is when

drones or a fleet of drones have

been commandeered or taken

control by the enemy.

Conclusion

Q & A

Thank You !!