SMS, WiFi and Bluetooth-Based Electrical Loads Control System

Abstract

-The study aimed to develop a low cost control system for electrical loads utilizing
wireless technology. It dealt with the design, construction, and transmission and reception accuracy
analysis of the SMS, Wi-Fi and Bluetooth technology involved. The design and construction were based
on wireless communication principles and their respective technology applications utilizing electronic
circuits, module/boards, components and devices for signal and data transmission and reception. A preprogrammed
communication apps were properly sketched and installed in a mobile phone and
computers to establish exclusive wireless communication between the transmitter and receiver module
of the system. The system allows multiple electrical loads be controlled from different distances or
locations at any time of the day. Trials and revisions were implemented to have immediate solution to
technical issues and problems being met during the construction stage. The developed control system
having the SMS, WiFi and Bluetooth components were all found very much accurate in terms of signal
sending and receiving to switch on and off electrical loads considering the time, distance and location
respectively. T-test result showed that the system’s accuracies with respect to distances and locations
for each wireless system were all synonymous for having a no significant difference result. From the
findings, it was proven that the developed control system can control wirelessly any electrical loads
from anywhere at any parts of the day and may provide home security by avoiding house fire incidence
due to overloading and short circuits. It can also be used to minimize electricity consumption.