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HOME APPLIANCES CONTROL USING LIFI

HOME APPLIANCES CONTROL USING LIFI

ABSTRACT

Nowadays there are various electronic equipment’s available for remote operation of electronic devices. But, the main disadvantage of these systems is that they can be operated only in short ranges and also less reliable. Thus, to overcome the above drawbacks, we are using one of the wireless communication technique i.e., LIFI.
This project is designed to make home automation easy to control when a user is not at home. The project is designed to allow easy use of a mobile phone to control appliances in the home. Using a mobile phone the development of the control system will be carried out using SMS. This will communicate with another mobile phone, which in turn controls the devices attached to microcontroller modules. When the action has been carried out then a response is sent to the user. The project involves three main areas, research, development\programming, testing and the writing of the report.



What is LI-FI??????
VLC represents only a fraction of what appears to be a much larger movement towards optical wireless technologies in general. This larger world has been dubbed ‘Li-Fi’ (Light Fidelity) by people such as Dr Harald Haas of Edinburgh University and organizations such as the Li-Fi Consortium.
Li-Fi is transmission of data through illumination of the LED by taking the fiber out of the fiber optics by sending data through the LED light bulb that varies in intensity faster than the human eye can follow.
The LED blubs will hold a micro-chip that will do the job of processing the data.
The light intensity can be manipulated to send the data by tiny changes in the amplitude.
This technology uses visible spectrum of light, a part of the electromagnetic spectrum that is still not greatly utilized.
In fact this technology transfers thousands of streams of data simultaneously in parallel in higher speed with the help of the special modulation using a unique signal processing technology.
The light used to transmit the data is called D-light by herald hass, the inventor of LiFi.










BLOCK DIAGRAM:
LIFI TX






LIFI RX






Features
ü  Transmit data serially at 57600 baud rate
ü  Distance of 1 feet to 10 feet can be achieved
ü  low power requirement
ü  no effect on human health
ü  highly secure compared to Wi-Fi
ü  high data density because visible light can be well contained


Application
ü   Indoor wireless open optical communication.
ü   Indoor navigation.
ü   Under water visible light communication.
ü   Smart indoor blind assistive application.
ü   Vehicle to vehicle communication.
ü   Depends on the LED power.

 HARDWARE REQUIRED:
1.      MICROCONTROLLER
2.      LCD 16X2
3.      LIFI TX&RX
4.      LED PANEL

SOFTWARE REQUIRED:  

1.      Keil u-Vision 3.0
2.      PRO51 Programmer Software




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