2. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Introduction
Home automation control system (HACS) is a concept a lot of work has done in this
field and many solutions has proposed.
Home automation deals with providing a network in the house which links.
It is used in internet and wireless technology to communicate and control the
appliances.
3. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Why Home Automation ?
Security system knows all about your occupancy of the house. With a little more
development it can build an intelligent ‘expert system’ to predict your usage.
By linking just these two you could achieve a reduction in fuel costs and a better match
to your requirements.
A home automation system can be controlled via a remote and/or with home
computers, iPads, iPhones, and smart phones.
4. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Types of a home automation control system
PC-based system: Requires a PC to be running at all times.
Dedicated PC
Shared PC
Standalone system: Runs without a PC, although may use a PC for programming.
Hybrid system: Runs without a PC, but uses PC to add more function.
5. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Functional Description
Inputs
Outputs
Voice Commands
Key Presses (User Responses to Menu)
User Interface Menu Via LCD Screen
Speaker Queuing User To Say Command Word
7. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Hardware Implementation
In this section will discuss on the hardware used in the implementation of this system
that include the
ULN2003 IC chip
Microcontroller
voltage regulator
the relay for interfacing
In this section will discuss on the hardware used in the implementation of this system
that include the AT89S52, ULN 2003, voltage regulator and the relay for interfaces.
10. http://www.edgefxkits.com/
Voice Controlled Home Appliances
RS-232 Specifications
The standard is simply concerned with serial data communication between the
computer which has the voice recognition software and the hardware kit.
Cabling : Single-ended
Number of Devices : 1 transmit, 1 receive
Communication Mode : Full duplex
Data Rate (max) : 1Mbps
11. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Power Supply
In the power supply section we use one step down transformer to step down the
voltage from 220 volt ac to 9 volt dc since the operating voltage for the ULN2003 relay
driver is 9v .
Output of the transformer is further connected to the two diode circuit.
12. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Turning lights down / off at night.
Operating outside lights
Turning lights or radio on / off when someone approaches the house, simulating
occupancy
Operating television, hot water heater, kettle, toaster etc. ready for your use.
Optimizing use of low cost electricity.
Working with intelligent electrical white goods e.g. washing machine, fridge, microwave
etc.
Applications
14. http://www.edgefxkits.com/
Voice Controlled Home Appliances
Conclusion
Controlling home appliances with voice technology has revolutionized our way
of living.
Wireless Technology used in this system is complex.
It is the location independent system being GSM available for the ease of user.
In future many more features can be added in it like home appliances can be
controlled by using voice call by implementing more secure and efficient
techniques.