LIFI™ is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. With energy efficiency, long useful lifetime, full spectrum and dimming, LIFI™ lighting applications work better compared to conventional approaches. This technology brief describes the general construction of LIFI™ lighting systems and the basic technology building blocks behind their function. Ppt on LIFI TECHNOLOGY. SEMINAR ON TANSHU Page 1. Li-Fi can be thought of as a lightbased Wi-Fi. That is, it uses light instead of radio waves to transmit information. And instead of Wi-Fi modems, LiFi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information.
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Li-Fi PPT |
Li-Fi Technology PPT: Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. Li-Fi is designed to use LED light bulbs similar to those currently in use in many energy-conscious homes and offices. However, Li-Fi bulbs are outfitted with a chip that modulates the light imperceptibly for optical data transmission. Li-Fi data is transmitted by the LED bulbs and received by photoreceptors.
See side by side comparison of LiFi and Wifi, Click Here
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Download Li-Fi PPTSeminar Report
2. Li-Fi Technology PPT: History • Professor Harald Haas, from the University of Edinburgh in the UK, is widely recognized as the original founder of Li-Fi. • He coined the term Li-Fi and is Chair of Mobile Communications at the University of Edinburgh and co-founder of pureLiFi. • Haas promoted this technology in his 2011 TED Global talk and helped start a company to market it. • In October 2011, companies and industry groups formed the Li-Fi Consortium, to promote high-speed optical wireless systems. • The first Li-Fi smartphone prototype was presented at the Consumer Electronics Show in Las Vegas from January 7–10 in 2014. Prof. Harald Haas
3. Li-Fi Technology PPT: Li-1st, the first Li-Fi product
4. Li-Fi Technology PPT: Present Scenario 1.4 millions + 6.8 billion +
5. Li-Fi Technology PPT:
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6. Li-Fi Technology PPT: Insufficient spectrum for increasing data Low power application Which is not used so far. Dangerous for human body Used for hospitals It is not used generally Disadvantages Of Other Spectrums
7. Li-Fi Technology PPT: Working of LI-FI The LEDs can be switched on and off very quickly which gives a nice opportunity for data transfer in the form of Binary code. Switching ON an LED is logical ‘1’, switching to an LED is logical ‘0’. Hence it is possible to encode the data into the LED’s by using a controller, we just have to vary at which LED’s flicker depending on the data we want to encode to give different strings of 0’s and 1’s. UK researchers say that using a micro-LED light bulb they have achieved a data transmission speed of 10Gbps using LI-FI.
8. Li-Fi Technology PPT: Main Components Of Communication System A high brightness white LED, Which acts as a communication source. A silicon photodiode which shows a good response to visible wavelength region serving as the receiving element. Receiving elements Transmitting elements
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9. Li-Fi Technology PPT: Advantageous Due To Parallel Data Transmission.
10. Li-Fi Technology PPT: Differences Between Technologies
11. Li-Fi Technology PPT: Applications RF Spectrum Relief Smart Lighting Mobile Connectivity Hazardous Environments Hospital & Healthcare Aviation Underwater Communications Vehicles & Transportation RF Avoidance Location Based Services (LBS) Toys
12. Advantages Higher speeds than Wi-Fi. 10000 times the frequency spectrum of radio. More secure because data cannot be intercepted without a clear line of sight. Prevents piggybacking. Eliminates neighboring network interference. Unimpeded by radio interference. Does not create interference in sensitive electronics, making it better for use in environments like hospitals and aircraft.
13. Disadvantages Light can't pass through objects. A major challenge facing Li-Fi is how the receiving device will transmit back to the transmitter. High installation cost of the VLC systems Interferences from external light sources like sun, light, normal bulbs, opaque materials.
14.Li-Fi Technology PPT: Conclusion By using Li-Fi in all the lights in and around a building, the technology could enable greater area of coverage than a single Wi-Fi router. Drawbacks to the technology include the need for a clear line of sight, difficulties with mobility and the requirement that lights stay on for operation.
15. Li-Fi Technology PPT: References http://whatis.techtarget.com/definition/LiFi http://www.dvice.com/archives/2012/08/lifi_ten_ways_i.php http://electronicsforu.com/electronicsforu http://purelifi.co.uk/what_is_li-fi/applicationsof_lifi/ http://en.wikipedia.org/wiki/Li-Fi
Gi-Fi Technology Seminar and PPT with pdf Report: What is Gi – Fi Technology? GI-FI means gigabit wireless. World’s first transceiver integrated on single chip. Operates on 60ghz on the CMOS process. Allows wireless transfer of audio and video data at upto 5GB per second. Transfer data within an indoor environment usually within a range of 10ms. This page contains Gi-Fi Technology Seminar and PPT with pdf report.
Gi-Fi Technology Seminar Pdf Report and PPT
Why GI-FI
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The reason for pushing into Gi-Fi technology is because of
- slow rate,
- high power consumption,
- low range of frequency operation
- of earlier technologies i.e. , Bluetooth and Wi-Fi.
Currently Using Technologies
- Bluetooth
- Wi-Fi
Features of Gi – Fi Technology
- High speed of data transfer
- Low power consumption
- High security
- Cost effective
- Small size
Applications of Gi – Fi Technology
- In wireless PAN networks.
- Inter-vehicle communication system.
- Huge data file transfer.
- Office appliances.
- Video information transfer.
Content of the Seminar and pdf report for Gi-Fi Technology
- CURRENTLY USING TECHNOLOGIES
- TECHNOLOGIED THAT USED
- WHY Gi – Fi ?
- COMPARISON BETWEEN BLUETOOTH AND Wi-Fi
- INTRODUCTION OF Gi – Fi
- ARCHITECTURE OF Gi –Fi
- FEATURES OF Gi –Fi
- APPLICATIONS
- CONCLUSIONS
- REFERENCE
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https://studymafia.org/gi-fi-technology-seminar-pdf-report-and-ppt/Gi-Fi Technology Seminar Pdf Report and PPTCSE SeminarsGi-Fi Technology Seminar and PPT with pdf Report: What is Gi - Fi Technology? GI-FI means gigabit wireless. World’s first transceiver integrated on single chip. Operates on 60ghz on the CMOS process. Allows wireless transfer of audio and video data at upto 5GB per second. Transfer data within an...Sumit ThakurSumitThakur[email protected]AdministratorI am an Indian Blogger. I am passionate about blogging. If you want to ask me anything about blogging then feel free to ask ?Study Mafia: Latest Seminars Topics PPT with PDF Report 2020![](/uploads/1/2/7/5/127578426/317600197.jpg)