Voice Controlled Home Appliances

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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.

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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.

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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.

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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

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Voice Controlled Home Appliances

General Working

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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.

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Voice Controlled Home Appliances

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Voice Controlled Home Appliances

RS 232 interface serial communications 12

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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

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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.

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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

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Voice Controlled Home Appliances

Advantages

Flexibility & Convenience Security Cost Saving Security Remote Control

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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.

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Railway Track Security by GSM With User Programmable Number Features