Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

LIGHT INTENSITY LEVEL CONTROL

DARUSIS, ERWAN (2006) LIGHT INTENSITY LEVEL CONTROL. Universiti Teknologi Petronas. (Unpublished)

[img] PDF
Download (1800Kb)

Abstract

The purpose of the project is to design a light level intensity control using Light Dependent Resistor (LDR) sensor. The main task for the project is to develop a light detector circuit for controlling the light intensity level ina confined environment. The light intensity is measured by using the LDR sensor while the microcontroller is added to the circuit in order to detect and response to the light intensity and control the intensity level toa preset value. The effect ofdifferent amount of light allows the controller to switch at the desired intensity levels automatically. The dimmer uses the technique ofAC phase angle control, where the loads are turned on for a portion of the total AC line sinewave period. The changes of variable resistor value, will affect the starting firing angle. The methodology of this project includes literature survey, planning work, design, experimental/simulation step, implementation and documentation of development progress. Literature survey was done to find the existing AC phase control circuit that used to control the brightness/dimmer of the lamp (load). The design step includes developing a microcontroller programming for the automatically operation for brightness/dimmer purpose, PCB circuit design and prototype construction. The combination between microcontroller program and the AC phase angel control circuit allows the brightness/dimming a lamp to be controlled automatically depending on the lighting condition in a confined space. Therefore, the electrical power consumption could be controlled and thus it will be cost effective. Overall, this project has achieved its objective and functions according to specification. The brightness of the lamp (25 Watt) varies from a minimum load consumption (7.7 Watt) to a maximum load consumption (22.9 Watt) and therefore can be controlled to suit the lighting conditions.

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 12:01
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/7073

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...