Download - ELG3336 - Remote Controlled Boat
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ELG3336 - Remote Controlled Boat
Group B01
Tarek Yakub – 4133137Fahad Aljenaei – 4290975Danish Qureshi - 417235
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Project BackgroundMajor Electrical Components
Pulse Width Modulation (PWM) Remote ControlPotentiometer
Major Mechanical ComponentsCreating a body that can float on waterFans to propel boat forward
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PWM (IC 555 timer)How it works?
Uses square voltage pulses that power a motorThe amount of power applied to the motor
depends on the duration of each pulse The higher the duration of the pulses results in an
increased average power applied to the motor
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Theoretical Circuit
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Actual Circuit & Connection
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The BoatThe boat was made out of swimming noodles held together
using metal bars Holes were drilled through a piece of wood to hold the
motors in place and mounted on the boat using metal brackets and screws
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PropulsionThe boat is powered by two computer fans
which have been attached to the output shafts of 6V motors
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By adjusting the potentiometer, the boat is able to move forward at variable speeds.
By varying the speed of one motor at a time allows the boat to turn left or right
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The Boat in MotionThis video shows the boat slightly turning
right and left, as well as slowing speed while moving forward
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ComplicationsBuilding the circuit
Low voltages across the motor Not enough current going into the motor
Solutions to these problems Changed one of the capacitors and removed one of the resistors
To deliver the proper amount of current into the motor (1.8 A) Changed Potentiometer (from 100 kOhms, to 10 kOhms because
resistance was to high) This was found through trial and error (at 100 kOhms the current was 428 mA,
at 10 kOhms the current was 2.4 A, 6 times greater!)
Used multi-sim to aid in problem solving
Choosing a PWM over the variable resistor due to heating up and also make use of IC 555 timer as we learned
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Improvements/ModificationsLarger FansMore powerful motors
To increase speed
Place the fans further apartTo allow the boat to turn easier
Wireless control
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Thank You