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Design And Construction Of A Central Wireless Switch That Controls The Entire Appliances
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1.6 Constraints Considerations
The following is a list of constraint Considerations
o
The controlled appliances will need an electrical control interface.
This system is only capable of controlling electrical devices.
o
The control module will need to be shielded against electrostatic
discharges. This will increase the reliability of the system.
o Battery backup for controlling unit can be implemented in case of power disruption.
·
Technology Considerations: The considerations for this system will
include a choice of networks, communication protocols and interfaces.
·
Cellular Networks: The widely available networks are based on GSM. This
network provides wide area coverage and can be utilized more
cost-effectively for this project.
· Communication Protocols:
The available communication protocol that we have used is SMS. The SMS
is the most efficient because this project requires a cellular
communication and limited data to be sent.
· I/O interfaces
between microcontroller and devices: Serial I/O is considered as options
for connection between the GSM receiver and the micro controller. Using
the micro controller, a control circuit will be implemented to control
the electrical appliances.
1.7 Significance of the Project
This project when realized will;
1. Help to save electricity bill and protects your electrical appliances
simply by remote controlling of the appliance any day any time.
2. Reduce the stress that is preventing people from going to switch off their appliances when not in used.
3. Give a fast turning off of appliances during power surge or any electrical faults in the building.
4. Serves as a lasting solution to the electricity problems that
usually occur when people forget to put off their appliances. It gives a fast response to power control.
1.8 Limitation of the project.
The project has certain limitations and a list of such is mentioned below: -
A.
The receiver must reside in a location where a signal with
sufficient.Strength can be received from a cellular phone network.
B. Only devices with electrical controlling input ports will be possible targets for control.
C. Operation of the controlling unit is only possible through a cell phone with SMS messaging and calls capabilities.
D. The Controlling unit must be able to receive and decode SMS messages or calls.
1.9 Report Organization
The remaining parts of this project report are organized as follows: In
Chapter
two, the past and current research on the systems is briefly
overviewed. This is done in order to justify the topic of this project,
and to
show that a research gap exists. Chapter three presents the system design
module by module. Here, the structure of the device is discussed in detail.
Chapter four describes the integration and testing of the project
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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---
