Quadcopter

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QUADCOPTER

ADARSH KS6EEEAAM.EN.U4EEE12004

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INTRODUCTION

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.

CONSTRUCTION

•CONVERTER•FRAME•POWER

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BRUSHLESS BRUSHEDLess maintenance

required

High efficiency.

Higher speed range

Separate controller required.

Higher cost

Longer life

More maintenance required

Less efficiency.

Less speed range

No controller required for fixed speed.

Less cost

Short life

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BLDC MOTOR WORKING

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Functional Decomposition: Hardware

Harness ESC’s Motors

CPU

Power Circuit

Logic Converter

Accelerometer

Barometer

Magnetometer

Gyroscope

GPS

Ultrasonic

Battery

Level 1.1: Quadcopter

5V

(3.3V Signal)

PWM

11.1V

3.3V

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GenerateInitial Pulse

Ultra-sonic

Chirp Initial Pulse Listen

for EchoBegin

Count

Stop Count when Echo Detected

Calculate Distance

Ultrasonic Range Finder

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PWM

Speed Command

MOSFETDriver

Battery Motor RPM

Electronic Speed Controller

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Determining GPS Position

• Suppose the distance from Satellite A to our position is 11,000 miles• At this point we could be located anywhere on the specified sphereSatellite A

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• Next, let us take another measurement from a second satellite, Satellite BSatellite B

+• Now our position is narrowed down to the intersection of theses two sphere

Satellite C+

Determining GPS Position

Satellite A

Satellite B+

+• Taking another measurement from a 3rd satellite narrows our position down even further, to the two points

• So by ranging from 3 satellites we can narrow our position to just two points in space

• These points are located where the 3rd sphere cuts through the intersection of first two spheres

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ITG-3200• Device used for maintain

orientation

• Works on principle of conservation of motion

• A vibrating object continues to vibrate in same plane and any vibration deviation can be used to derive any change in direction

Gyroscope

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ADXL345

• Device that measures g force

• Piezoelectric accelerometer

• Quartz crystal attached to a mass so when accelerometer moves the mass squeezes crystal the crystal and generate a tiny voltage .

Accelerometer

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FLIGHT DYNAMICS

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WORKING PRINCIPLE – MOTOR ROTATION

Take off Motion

Landing Motion

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BACKWARD MOTION

FORWARD MOTION

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RIGHT MOTION

LEFT MOTION

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APPLICATIONS•Search and rescue•Surveillance•Inspections of hazardous places•Transport of packages•Research.

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QUESTIONS?

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THANK YOU

Quadcopter

Engineering

Transcript of Quadcopter