CSE EXAM ( UPSC prelims mains) CAPF

🔆LI-FI

✅ Li-Fi, or light fidelity, is a Visible Light Communications (VLC) system.
✅ Unlike Wi-Fi, which uses radio waves, Li-Fi runs on visible light.
✅ It transmits data at terabits per second speeds — more than 100 times the speed of Wi-Fi.
✅ It accommodates a photo-detector to receive light signals and a signal processing element to convert the data into ‘stream-able’ content.

ADVANTAGES OF LIFI

✅ Li-Fi could make a huge impact on the internet of things, with data transferred at much higher levels with even more devices able to connect to one another.
✅ Due to its shorter range, Li-Fi is more secure than Wi-Fi.
✅ Li-Fi systems consume less power.

DISADVANTAGES OF LIFI

✅ Main challenge is to create a Li-Fi ecosystem, which will need conversion of existing smartphones into Li-Fi enabled ones by the use of a converter/adapter.
✅ Visual light can’t pass through opaque objects and needs line of sight for communication.
✅ Interference from external light sources, such as sunlight and bulbs.

POTENTIAL APPLICATIONS OF LIFI

✅ Li-Fi can be used in street & traffic lights. Traffic lights can communicate to vehicles and with each other.
✅Through use of Li-Fi, traffic control can be made intelligent and real-time adaptable. Each traffic and street light post can be converted into access points to convert roadsides into wireless hotspots.
✅ Vehicles having LED-based headlights and tail lamps can communicate with each other and prevent accidents by exchanging information.
✅ Visible light being safer, they can also be used in places where radio waves can’t be used such as petrochemical and nuclear plants and hospitals.
✅ They can be used in aircraft, where most of control communication is performed through radio waves.
✅ Li-Fi can easily work underwater, where Wi-Fi fails completely, thereby throwing open endless opportunities
for military & navigational operations.
✅ Transmitting power wirelessly, wherein smartphones will not only receive data through Li-Fi, but will also receive power to charge itself.

#science_and_technology
#prelims

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@upsc_science_and_technology

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7.5K viewsAug 19, 2024 at 05:40

🔆LI-FI

✅ Li-Fi, or light fidelity, is a Visible Light Communications (VLC) system.
✅ Unlike Wi-Fi, which uses radio waves, Li-Fi runs on visible light.
✅ It transmits data at terabits per second speeds — more than 100 times the speed of Wi-Fi.
✅ It accommodates a photo-detector to receive light signals and a signal processing element to convert the data into ‘stream-able’ content.

ADVANTAGES OF LIFI

✅ Li-Fi could make a huge impact on the internet of things, with data transferred at much higher levels with even more devices able to connect to one another.
✅ Due to its shorter range, Li-Fi is more secure than Wi-Fi.
✅ Li-Fi systems consume less power.

DISADVANTAGES OF LIFI

✅ Main challenge is to create a Li-Fi ecosystem, which will need conversion of existing smartphones into Li-Fi enabled ones by the use of a converter/adapter.
✅ Visual light can’t pass through opaque objects and needs line of sight for communication.
✅ Interference from external light sources, such as sunlight and bulbs.

POTENTIAL APPLICATIONS OF LIFI

✅ Li-Fi can be used in street & traffic lights. Traffic lights can communicate to vehicles and with each other.
✅Through use of Li-Fi, traffic control can be made intelligent and real-time adaptable. Each traffic and street light post can be converted into access points to convert roadsides into wireless hotspots.
✅ Vehicles having LED-based headlights and tail lamps can communicate with each other and prevent accidents by exchanging information.
✅ Visible light being safer, they can also be used in places where radio waves can’t be used such as petrochemical and nuclear plants and hospitals.
✅ They can be used in aircraft, where most of control communication is performed through radio waves.
✅ Li-Fi can easily work underwater, where Wi-Fi fails completely, thereby throwing open endless opportunities
for military & navigational operations.
✅ Transmitting power wirelessly, wherein smartphones will not only receive data through Li-Fi, but will also receive power to charge itself.

#science_and_technology
#prelims

Join @CSE_EXAM
@upsc_science_and_technology

BY CSE EXAM ( UPSC prelims mains) CAPF