Wireless message communicator

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Bibliographic Details
Main Author: Mohd Hafiz Ismail
Other Authors: Rosemizi Abd Rahim (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2008
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Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/3107
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spelling my.unimap-31072009-02-20T09:19:26Z Wireless message communicator Mohd Hafiz Ismail Rosemizi Abd Rahim (Advisor) Wireless communication systems Mobile communication systems Internetworking (Telecommunication) Instant messaging Cellular telephone systems Access is limited to UniMAP community. In today’s era of sophisticated and well-improved structure, demands in modern and new in technology is so important for society who wish to have a handful device in many kind of aspect. Therefore, engineers need to find alternative way in producing a new and modern enhance technology that is useful for the society. One of the most vital and often been used is the SMS or short message service technology. Normally, this service is used with a hand phone as a communication medium. But as we know, user have to purchase their own mobile lines which are available in today’s market such as Maxis, Celcom or Digi before they can used this SMS services. Beside that, every message that is been sent will be charged accordingly to its rate and the coverage for the signal is limited, where in a valley area those signal is so weak and it is hard to make any services regarding SMS. Thus due to that factors, my project is about wireless SMS communicator, where the main function of these devices is to send and receive text messages to and from another device. It is very much like communicating with a walkie-talkie, except with text and smoother communication scheme. I choose this title as my final year project because I was inspired and amused by the recent technological trend in wireless communication systems. Also, it could be a cool gadget for our cars so that the cars can communicate with each other on a road trip. The concept for this device is about receiver and transmitter, where I used microcontroller as a main device to transmit signal from transmitter to receiver. Each text message that is been typed is been done by using a keypad and every single word that is been typed can be monitories on a LCD board. Therefore, I used two keypads and two LCD screens for each receiver and transmitter. A part from that, I also used encoder and decoder for this device. Encoder is used to encode the input signal and also allocated the address for the transmitter. Thus, multiple signals can be transmit at the same frequency without interfering the original signal. Decoder is used to decode the signal back to its original signal and also for addressing purposed. Among the benefits for this device are free SMS services where each delivery won’t cost a thing and user don’t have to purchase any mobile lines to use the services. Due to the factor that I used a RF technology (radio frequency), thus it will have a range in terms of its distance where it can only operate at certain specified distance. A part from RF, WIFI technology can also be used where the distance for communicates is far more better than RF. For this project, I only set up a two way communication among users and the frequency that is been used is at 433.93 MHz & 315MHz. 2008-11-12T03:15:30Z 2008-11-12T03:15:30Z 2007-04 Learning Object http://hdl.handle.net/123456789/3107 en Universiti Malaysia Perlis School of Computer & Communication Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Wireless communication systems
Mobile communication systems
Internetworking (Telecommunication)
Instant messaging
Cellular telephone systems
spellingShingle Wireless communication systems
Mobile communication systems
Internetworking (Telecommunication)
Instant messaging
Cellular telephone systems
Mohd Hafiz Ismail
Wireless message communicator
description Access is limited to UniMAP community.
author2 Rosemizi Abd Rahim (Advisor)
author_facet Rosemizi Abd Rahim (Advisor)
Mohd Hafiz Ismail
format Learning Object
author Mohd Hafiz Ismail
author_sort Mohd Hafiz Ismail
title Wireless message communicator
title_short Wireless message communicator
title_full Wireless message communicator
title_fullStr Wireless message communicator
title_full_unstemmed Wireless message communicator
title_sort wireless message communicator
publisher Universiti Malaysia Perlis
publishDate 2008
url http://dspace.unimap.edu.my/xmlui/handle/123456789/3107
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score 13.209306