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Revision as of 13:12, 10 October 2014
Contents
Project information
Background
Introduction
The purpose of this project is to produce the practical component of a new engineering course. It will involve students individually designing, building and testing their own autonomous vehicle (AV). This practical will give students the opportunity to develop highly useful and sought after skills, such as CAD design, 3D Printing, Altium designer, PCB prototyping and microprocessor coding. Developing these skills through practice rather then theory will set future students in good stead for their future career.
Objectives
Quadcopter
The multi-rotor with four propellers was chosen since it is easier to construct and more stable compared to other types of multi-rotor vehicles.
AV Search Boat
The goal of the AV is to be a small scale boat capable of mapping obstacles over water. Using a combination of an accelerometer and magnetometer the craft is capable to keeping track of its location. Using IR Proximity it can detect upcoming obstacles and change its own path to avoid them. The craft will act as a platform for future development, incorporating additional sensing capability allowing for more flexible usage.
Possibile future applications include search and rescue operations, environment damage monitoring and driverless transport applications.
Auto Tank AV
This AV's purpose is a simple collision avoidance tank. It has a rectangular aluminium chassis, that has a variety of mounting holes positioned on it. The wheels are plastic with a rubber tread running between two of the wheels on either side of the chassis. It uses a proximity sensor at the front of the AV to sense an obstacle in front of it and, using its microcontroller, can avoid the obstacle. The size of this AV is small scale to provide a simple and low budget design while still complying with our set requirements. The aluminium chassis gives it a strong casing and also allows for further expansion on its functionality.
To incorporate all of the electronic components into one system a PCB was designed in Altium. This process had a few trial an error phases where the physical layout of the PCB needed to be revised a number of times. When producing the layout of the PCB a few factors where taken into account, firstly it needed to be small to fit inside the Tank's chassis. Secondly the connections between pads needed to be relatively simple to avoid having a cluster of overlapping lines. This was achieved by placing the motor driver in the opposite direction to the microcontroller to provide simple connections between them. Thirdly the lines that the motors are directy connected to needed to be made thicker just in case they started drawing more power than expected and to protect the circuit.
Personnel
Team Members
- Mr. Clayton Jericho
- Mr. Hualong Sun
- Mr. Patrick Ward
Supervisors
- A/Prof. Nesimi Ertugrul
- Dr. Braden Phillips
