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Design And Construction Of A Central Wireless Switch That Controls The Entire Appliances
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CHAPTER ONE
INTRODUCTION
1.1 Background of Study
Due to the stress and risk of controlling electrical appliance in the school
building at night, we are motivated to design and build a central wireless
remote
switch for the electrical and electronic department. A central wireless
switch for electrical and electronic appliance is an electronic device
specially designed to use GSM mobile cell phone to shut down electrical
power supply to the entire appliance in the EEE general office where
there are ugly power situations such as fire outbreak, lightning
strikes, switching surges, transients, neutral failure and other
abnormal conditions or malfunctions that can destroy lives and
properties. Ndubuisi (2011).
The system implements the emerging applications of the GSM technology
which
enable the users to carry out some task from anywhere in the world via a
GSM network. The system is made up of a GSM amplifier unit, PIC12f629
micro controller, power control and a power supply unit. These sub
circuits are designed using passive and active electronic components
like capacitors, resistors, diode, regulators, transistors,
electromagnetic relay, microcontroller and battery.
New age of
technology has redefined communication; Most people nowadays have access
to mobile phones and thus the world indeed has become a global village.
At any given moment, any particular individual can be contacted with
the mobile phone. But the application of mobile phone cannot just be
restricted to sending SMS or starting conversations. New innovations and
ideas can be generated from it that can further enhance its
capabilities. Technologies such as Infra-red, Bluetooth, etc which has
developed in recent years goes to show the very fact that improvements
are in fact possible and these improvements have eased our life and the
way we live. Remote management of several homes, offices and the school
appliances is a subject of growing interest and in recent years, we have
seen many systems providing such controls. Appliances of a certain
location
are eliminated with the use of this system. These days,
apart from supporting voice calls a mobile phone can be used to send
text messages as well as multimedia messages (that may contain pictures,
graphics, animations, etc).
Sending written text messages is very
popular among mobile phone users. Instant messaging, as it is also
known, allows quick transmission of short messages that allow an
individual to share ideas, opinions and other relevant information. We
have used the very concept to design a system that acts as a platform to
receivemessages which in fact are commands sent to control different
appliances and devices connected to the platform. We have designed a
control system which is based on the GSM technology that effectively
allows control from a remote area to the desired location. The
application of our suggested system is immense in the ever changing
technological world. It allows a greater degree of freedom to an
individual whether it is controlling their appliances or office
equipments. Shizhuang (2007)
There is no need to be physically
present in order to control. I have implored the use of both hardware
and software to bring about the entire project. The hardware components
are solely coordinated by the micro controller chip while the c
programming language is used to program the chip.
1.2 Statement of Problem
Surge may occur in power line which may damaged a lot of
sensitive
electrical and electronic appliances in various homes and offices. When
the occurrence is not being solved or controlled it may lead to sudden
explosion and fire outbreaks. And in most cases the users of the
electrical appliance are busy and may not be close to switch-off the
appliances when surge occurs. Also, it is also stressful to do the
monitoring and switching off the load. Hence, the need for using a
remotely controlled device for electrical appliances so as to be able to
control the appliances for safety.
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ABSRACT - [ Total Page(s): 1 ]The purpose of this project is to design and construction of a central wireless switch for electrical and electronic appliances. A central wireless switch for electrical and electronic appliance is a GSM based online power control switch system that controls the entire appliance in the EEE general office using GSM network. It will act as an embedded system which would monitor and control appliances and other devices locally using built-in input and output peripherals. This device can control the ... Continue reading---
