lifi ppt-1.pptx light fidileter project folder

Lifi projec5

1. Li-Fi(Light Fidelity) Based High Data Rate Visible Light Communication for Data and Audio Transmission

2. Contents Introduction Requirement Working Benefits Conclusion

3. Introduction Li-Fi, a short form for Light Fidelity, is a wireless technology that makes use of visible light communication instead of radio waves. In this, common household LED bulbs can be utilised to allow data transfer with a speed of up to 224 gigabits per second, which equates to downloading around 18 movies each of 1.5 GB in every single second.  At the heart of this technology is a new generation of high brightness LEDs. If the LED is on a digital 1 is transmitted, if the LED is off then a digital 0 is transmitted. They can be switched on and off in order to transmit data continuously.

4. Requirement Hardware Components Light Emitting Diode(LED) Solar Plate Speaker Capacitor 3.5MM Jack Cable Resistor 9V Battery Wire

5. Requirement Hardware Components LED is a semiconductor light source that emits light when current flows through it. When a current flows through the diode, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence. Solar-powered photovoltaic (PV) panels convert the sun's rays into electricity by exciting electrons in silicon cells using the photons of light from the sun. This electricity can then be used to supply renewable energy to your home or business. Solar cells can be used to generate electricity from sunlight. It is a device that converts light energy into electrical energy. Light Emitting Diode(LED) Solar Plate

6. Requirement Hardware Components An audio amplifier is an electronic device that increases the strength (amplitude) of audio signals that pass through it. An audio amplifier amplifies low-power audio signals to a level which is suitable for driving loudspeakers. A capacitor can store electric energy when it is connected to its charging circuit. And when it is disconnected from its charging circuit, it can dissipate that stored energy, so it can be used like a temporary battery. Capacitors are commonly used in electronic devices to maintain power supply while batteries are being changed. Speaker Capacitor

7. Requirement Hardware Components An audio signal is a representation of sound, typically as an electrical voltage for analog signals and a binary number for digital signals. Audio signals have frequencies in the audio frequency range of roughly 20 to 20,000 Hz (the limits of human hearing). It is an electrical device may be a passive two-terminal electrical part that implements resistance as a circuit component. In electronic circuits, resistors unit of measurement accustomed reduce current flow, alter signal levels, to divide voltages, bias active components, and terminate transmission lines, among completely different uses. 3.5MM Jack Cable Resistor

8. Requirement Hardware Components An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode A length of such material, consisting either of a single filament or of several filaments woven or twisted together and usually insulated with a dielectric material, used as a conductor of electricity. 9V Battery Wire

9. Working Principle The tiny change in the rapid dimming of LED bulbs is then converted by the 'receiver' into electrical signal. The signal is then converted back into a binary data stream that we would recognize as web, video and audio applications that run on internet-enabled devices.

10. Working Block Diagram Of Li-Fi(Light Fidelity) Based High Data Rate Visible Light Communication for Data and Audio Transmission

11. Working Li-Fi and Wi-Fi are quite similar as both transmit data electromagnetically. However, Wi-Fi uses radio waves, while Li-Fi runs on visible light waves. As we now know, Li-Fi is a Visible Light Communications (VLC) system. This means that it accommodates a photo-detector to receive light signals and a signal processing element to convert the data into 'stream able' content.

12. Designed System

13. Benefits Economical . Automatic Controlled and easy to use. Very Accurate (Errors are nullified) and precise as it is Digital. Provides the Correct Day till Full Day.

14. Conclusion The concept of Li-Fi is currently attracting a great deal of interest, not least because it may offer a genuine and efficient alternative to radio based wireless. As a growing number of people and their devices access wireless internet, the air waves are becoming increasingly clogged, making it more and more difficult to get a reliable, high-speed signal. So Li-Fi has a bright future. LI FI will make are lives more technology driven in the near future. With its magic of light it can make our world a greener, safer, cleaner and more over a brighter place to live.

15. Thank You