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Design and Implementation of a Mobile Robot

Yeap , Kim Ho (2004) Design and Implementation of a Mobile Robot. Universiti Teknologi Petronas. (Unpublished)

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Abstract

A robot is a mechanical device, which possesses the capability of emulating a human's characteristic in some way or another. The project is to build a mobile robot, which should be able to avoid any encumbrances, while at the same time, is capable of maneuvering at a predetermined path. The mobile robot should be intelligent enough to make decisions as to which direction it is to turn when it reaches a certain situation - ie. a turning point, a T-junction, a dead end, etc. An extensive research would be conducted first before starting offdesigning the robot. Subsequently, the exact materials would be selected. The structure of the mobile robot would then be designed and built. The main circuitries required to construct a mobile robot include ultrasonic sensors, a pair of H-bridge circuits, and a microcontroller circuit. The ultrasonic sensors serve as eyes for the robot. They help to detect obstacles en route. The purpose of constructing the H-bridge circuit is to control the rotational direction of the motors. The microcontroller plays a most essential role in the mobile robot. The microcontroller acts as a brain for the mobile robot and would be making decisions on how the robot should react when it encounter obstacles. Due to itssimplicity and the ease in getting familiarized with, an 8-bit PIC16F84A microcontroller is implemented for the project. The components - that is, the sensors, motors, the H-bridge circuits, and the microcontroller, would be validated individually first, before integrating them onto the mobile robot. The program of the microcontroller would be written in assembly code form and would then be validated. Lastly, successive validation tests would be conducted on the entirerobot to ensurethe reliability ofthe mobilerobot.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Pervasisve Systems - Digital Electronics - Design
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 27 Sep 2013 11:03
Last Modified: 25 Jan 2017 09:47
URI: http://utpedia.utp.edu.my/id/eprint/6968

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