presentation on lifi devices
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This presentation introduces Li-Fi technology, which uses visible light communication to transmit data wirelessly. It was invented in 2011 by Harald Haas. Li-Fi works by varying the intensity of LED lights rapidly on and off to transmit digital signals. Compared to Wi-Fi, Li-Fi provides higher speeds, has unlimited bandwidth, and is more secure as light cannot pass through walls. The presentation outlines how Li-Fi works and its advantages over radio-wave communication, such as its availability in places where Wi-Fi cannot be used.
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A Brief of LiFi
LIFI is a new technology that uses light from LED bulbs to transmit data. It works by varying the intensity of light faster than the human eye can detect. LIFI was first introduced in 2011 and provides several advantages over traditional WiFi such as higher speeds, more secure transmission since light cannot pass through walls, and the ability to use the much larger light spectrum to transmit data. Potential applications of LIFI include use in traffic lights, underwater communications, airplanes, hospitals and more. However, LIFI also has limitations like a shorter range since it requires line of sight and cannot pass through opaque objects.
Li-Fi technology
This document provides an overview of Li-Fi technology. It begins with definitions of Li-Fi as using light to transmit data through LED bulbs. It then discusses the current use of Wi-Fi and need for another connectivity option. The history of Li-Fi is outlined, beginning with research in 2004 by Professor Harald Haas. Key differences between Li-Fi and Wi-Fi are identified, such as Li-Fi providing higher speeds and more secure data transfer through light blocking. Potential applications of Li-Fi are described including use in traffic lights, hospitals, aircraft and under water. Challenges for Li-Fi are also noted, such as light not passing through objects and interference from other light sources.
LI-FI Technology ppt
This ppt is about how li-fi technology works and how it is useful.
this ppt give you better information about li-fi technology.
Light Fedility PPT
Li-Fi is a visible light communication technology that uses light from LED bulbs to transmit data wirelessly. It was developed by Professor Harald Haas and his team at the University of Edinburgh. Li-Fi uses photo detectors and LED bulbs that can be switched on and off faster than the human eye can detect to transmit data. It provides wireless connections up to 10 times faster than Wi-Fi and has advantages like no interference from radio waves, higher security since light cannot pass through walls, and potential use in environments where Wi-Fi is restricted. Some applications of Li-Fi include use in traffic lights, hospitals, airplanes, and underwater communications.
Light Fidelity
Li-Fi is a wireless communication technology that uses visible light communication (VLC) to transmit data using light. It was coined by Professor Harald Haas in 2011 and provides wireless connection speeds faster than Wi-Fi. Li-Fi uses LED bulbs that can be switched on and off at very high speeds to transmit data wirelessly. It has advantages over Wi-Fi like higher speed, more secure connection, and will not interfere with other wireless technologies. However, its range is limited as light cannot pass through walls and data transfer can be affected by external light sources. Potential applications of Li-Fi include use in hospitals, aviation, vehicles and smart lighting in homes and offices.
Light Fidelity(Li-Fi) Technology
A powerpoint presentation on Light-Fidelity technology.
Li-Fi (Light-Fidelity) is transmission of data through illumination, sending data through a LED light bulb that varies intensity faster than human eye can follow.
Li fi technology by milton james
Li-Fi is a wireless communication technology that uses light to transfer data. It can transmit data at speeds greater than 10 Gbps. Li-Fi was first conceived in the 1990s but development increased in the 2010s. The first Li-Fi product, Li-Fi 1st, had speeds up to 5 Mbps. Later products like Li-Flame turned LED bulbs into wireless access points. The Li-Fi market is estimated to reach $6 billion by 2018. Li-Fi uses visible light communication instead of radio waves, making it more secure, have higher bandwidth, and avoid health risks of radio waves. It works by transmitting data through rapid changes in the intensity of light from an LED bulb that is detected
ppt on LIFI TECHNOLOGY
This document discusses Li-Fi technology, which uses LED light bulbs to transmit data by varying the intensity of light faster than what the human eye can detect. Li-Fi was pioneered in the 1990s and demonstrated by Harald Haas in 2011. It provides several advantages over Wi-Fi such as higher speed potential and no interference with radio frequencies. Li-Fi works by encoding binary data in the on-off states of an LED and can achieve speeds of over 100 Mbps. Potential applications include use in planes, hospitals, and as public internet hotspots through street lamps. However, challenges include light not passing through solid objects and interference from other light sources.
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A Brief of LiFi
LIFI is a new technology that uses light from LED bulbs to transmit data. It works by varying the intensity of light faster than the human eye can detect. LIFI was first introduced in 2011 and provides several advantages over traditional WiFi such as higher speeds, more secure transmission since light cannot pass through walls, and the ability to use the much larger light spectrum to transmit data. Potential applications of LIFI include use in traffic lights, underwater communications, airplanes, hospitals and more. However, LIFI also has limitations like a shorter range since it requires line of sight and cannot pass through opaque objects.
Li-Fi technology
This document provides an overview of Li-Fi technology. It begins with definitions of Li-Fi as using light to transmit data through LED bulbs. It then discusses the current use of Wi-Fi and need for another connectivity option. The history of Li-Fi is outlined, beginning with research in 2004 by Professor Harald Haas. Key differences between Li-Fi and Wi-Fi are identified, such as Li-Fi providing higher speeds and more secure data transfer through light blocking. Potential applications of Li-Fi are described including use in traffic lights, hospitals, aircraft and under water. Challenges for Li-Fi are also noted, such as light not passing through objects and interference from other light sources.
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Light Fedility PPT
Li-Fi is a visible light communication technology that uses light from LED bulbs to transmit data wirelessly. It was developed by Professor Harald Haas and his team at the University of Edinburgh. Li-Fi uses photo detectors and LED bulbs that can be switched on and off faster than the human eye can detect to transmit data. It provides wireless connections up to 10 times faster than Wi-Fi and has advantages like no interference from radio waves, higher security since light cannot pass through walls, and potential use in environments where Wi-Fi is restricted. Some applications of Li-Fi include use in traffic lights, hospitals, airplanes, and underwater communications.
Light Fidelity
Li-Fi is a wireless communication technology that uses visible light communication (VLC) to transmit data using light. It was coined by Professor Harald Haas in 2011 and provides wireless connection speeds faster than Wi-Fi. Li-Fi uses LED bulbs that can be switched on and off at very high speeds to transmit data wirelessly. It has advantages over Wi-Fi like higher speed, more secure connection, and will not interfere with other wireless technologies. However, its range is limited as light cannot pass through walls and data transfer can be affected by external light sources. Potential applications of Li-Fi include use in hospitals, aviation, vehicles and smart lighting in homes and offices.
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A powerpoint presentation on Light-Fidelity technology.
Li-Fi (Light-Fidelity) is transmission of data through illumination, sending data through a LED light bulb that varies intensity faster than human eye can follow.
Li fi technology by milton james
Li-Fi is a wireless communication technology that uses light to transfer data. It can transmit data at speeds greater than 10 Gbps. Li-Fi was first conceived in the 1990s but development increased in the 2010s. The first Li-Fi product, Li-Fi 1st, had speeds up to 5 Mbps. Later products like Li-Flame turned LED bulbs into wireless access points. The Li-Fi market is estimated to reach $6 billion by 2018. Li-Fi uses visible light communication instead of radio waves, making it more secure, have higher bandwidth, and avoid health risks of radio waves. It works by transmitting data through rapid changes in the intensity of light from an LED bulb that is detected
ppt on LIFI TECHNOLOGY
This document discusses Li-Fi technology, which uses LED light bulbs to transmit data by varying the intensity of light faster than what the human eye can detect. Li-Fi was pioneered in the 1990s and demonstrated by Harald Haas in 2011. It provides several advantages over Wi-Fi such as higher speed potential and no interference with radio frequencies. Li-Fi works by encoding binary data in the on-off states of an LED and can achieve speeds of over 100 Mbps. Potential applications include use in planes, hospitals, and as public internet hotspots through street lamps. However, challenges include light not passing through solid objects and interference from other light sources.
LiFi Technology
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It was invented in the 1990s by Professor Harald Haas as an alternative to Wi-Fi that uses radio waves. Li-Fi has several advantages over Wi-Fi, including higher speeds, more available spectrum, and better security. It can be used in applications like traffic lights, hospitals, and airplanes to provide high-speed wireless connectivity without interfering with other wireless devices. The future potential of Li-Fi is significant as it could turn any light source into a wireless hotspot.
LIFI TECHNOLOGY
This document presents an overview of Li-Fi technology. Li-Fi uses light from LED bulbs to transmit data wirelessly, providing higher bandwidth than Wi-Fi. It was pioneered in the 1990s but is now gaining attention due to wireless spectrum congestion issues. Li-Fi has several advantages over Wi-Fi like better security, higher speed, and no interference. Potential applications include use in traffic lights, hospitals, airplanes, and underwater. However, challenges remain in ensuring line of sight and preventing interference from other light sources.
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Li-Fi is a new technology that uses light from LED bulbs to transmit data wirelessly. It provides higher speeds and more available bandwidth than traditional Wi-Fi networks. The presentation covers the history of Li-Fi development, how it works by varying the intensity of LED light faster than the human eye can detect, its advantages over Wi-Fi like higher speeds and security, potential applications in traffic lights, airplanes and underwater, and challenges to commercialization like the need for line of sight and modifications to existing devices. Overall, Li-Fi shows promise as a supplement to Wi-Fi but still faces technical hurdles to widespread adoption.
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lifi
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Lifi ppt
INDRODUCTION
HISTORY
HOW LIFI WORKS?
REAL TIME USAGE OF LIFI
HOW IT WORKS?
WIFI VS LIFI
APPLIOCATIONS
ADVANTAGES
DISADVANTAGES
CONCLUSION
Li-fi technology
Li-Fi is a new technology that uses visible light communication (VLC) to transmit data through LED light bulbs. It works by varying the intensity of light faster than what the human eye can detect. Li-Fi offers several advantages over traditional Wi-Fi, including higher capacity, better availability, higher security, and energy efficiency. It could help meet the rapidly increasing demand for wireless data as radio spectrum becomes more congested. If developed further, Li-Fi technology would allow wireless internet access from every light bulb.
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LIFI (Light Fidelity) is a technology that uses visible light communication and infrared light to transmit data using LED light bulbs. It provides wireless communication that is similar to WiFi but uses the light spectrum instead of radio frequencies. LIFI has several advantages over WiFi like higher speed, more secure connections, and an unregulated spectrum. However, its signals cannot pass through walls like radio waves, so each room would need its own connected light source. LIFI could be used in applications like traffic lights communicating with cars, in airplanes where WiFi is restricted, and in places that need fast and secure data transmission.
Li-Fi
- Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. It is a viable alternative to Wi-Fi as it has a faster speed and more secure transmission.
- The technology was pioneered by German physicist Harald Hass. It works by switching LED bulbs on and off at a very high speed, which is undetectable to the human eye. A photodetector at the receiving end detects the signals and decodes the data.
- Li-Fi has several advantages over Wi-Fi including higher speed, more secure communication due to the inability of signals to pass through walls, lower implementation cost, and no interference with other wireless
Li fi technology
This document discusses Li-Fi technology, which uses visible light communication to transmit data wirelessly. Li-Fi was invented by German physicist Harald Haas in 2012 and uses LED lights to transmit data at speeds over 150 Mbps by varying the intensity of light faster than the human eye can detect. It has several advantages over Wi-Fi such as higher speed, more available spectrum, more security as light does not pass through walls, and is more efficient. Li-Fi has already been demonstrated successfully in transmitting data using an ordinary table lamp.
LI-FI TECHNOLOGY
Lifi Technology presentation best view in powerpoint 2013,16
By Zulafqar Ahmed
Comments below for more slides.
if you want some more and good slides comments below for particular slides
Li-Fi a complete presentation
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It provides a more efficient alternative to Wi-Fi by using visible light that has a much larger and underutilized spectrum than radio frequencies. Li-Fi works by varying the intensity of light from an LED faster than the human eye can detect to transmit digital signals. It has advantages over Wi-Fi like higher speed, more available spectrum, more security since light cannot pass through walls easily, and energy efficiency since it uses LED bulbs. Potential applications of Li-Fi include use in places where Wi-Fi is restricted like hospitals or aircraft.
li-fi technology
This document summarizes a seminar presentation on Li-Fi technology. It begins with an introduction explaining that Li-Fi uses LED light bulbs to transmit data wirelessly using visible light communication. It then explains how Li-Fi works by modulating data onto the light from LED bulbs. The document compares Li-Fi to Wi-Fi, noting Li-Fi's higher speeds and more localized coverage. It discusses real-world applications of Li-Fi including on airplanes and underwater. The document concludes by outlining advantages like high speeds and security, as well as challenges like limited range through obstacles.
Lifi Technology
Ashish Kumar Baghel and Chandraprakash Verma presented on Li-Fi technology at the Oriental Institute of Science and Tech in Bhopal on March 13, 2013. Li-Fi uses visible light communication to transmit data through LED bulbs that can switch on and off faster than the human eye can detect. The technology was pioneered in the 1990s by researchers in Germany, Korea, and Japan. Harald Haas continues advancing Li-Fi which could help address the congestion issues with radio spectrum as data demands double each year. Li-Fi has potential applications in traffic lights, intrinsically safe environments, and as public internet hotspots using street lamps. While still developing, Li-Fi shows promise to enable wireless
Lifi technology
Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. It was invented by Professor Harald Haas from the University of Edinburgh. Li-Fi transmits data through LED bulbs and receives it with photoreceptors, providing higher speeds than Wi-Fi without interference. Potential applications include use in traffic lights, industrial settings, airplanes, and underwater where radio frequencies do not work well. While Li-Fi provides more security and bandwidth than Wi-Fi, it requires line of sight and lights to remain on for operation.
Li fi ppt
Li-Fi is a visible light communication system that uses LED light bulbs to transmit data wirelessly. It was coined by Professor Harald Haas in 2011 and provides high-speed communication similar to Wi-Fi but using light instead of radio waves. Li-Fi has several applications such as in traffic lights, airplanes, hospitals, and street lamps. It provides more secure and faster communication than Wi-Fi but has limitations like the need for line of sight and interference from other light sources. Current companies developing Li-Fi technology include pureLIFI and LIFI-X.
Li-Fi (light fidelity)
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It works by varying the intensity of LED light faster than the human eye can detect. As demand for wireless data doubles every year, Li-Fi offers a solution to overcome radio spectrum congestion by using the visible light spectrum. Li-Fi has potential applications in traffic lights, intrinsically safe environments like oil rigs, and public internet hotspots using street lamps. It may also enable underwater communication where Wi-Fi fails. While still developing, Li-Fi shows promise as a way to turn every light bulb into a wireless data connection point.
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LI-FI is transmission of data through illumination ,i.e. sending data through a LED light bulb that varies in intensity faster than human eye can follow
Lifi technology(nimesh bariya)
This document discusses LiFi technology, which transmits data through illumination using LED light bulbs. It was invented in 2012 by German physicist Harald Hass. LiFi works by switching LED lights on and off very quickly to transmit digital 1s and 0s. It provides wireless connectivity at speeds up to 1Gbps, faster than WiFi. Potential applications of LiFi include use in traffic lights, airplanes, and underwater communications since it does not interfere with radio frequencies. While it has advantages over WiFi like higher speeds and bandwidth, LiFi also has limitations such as requiring line of sight and being disrupted by external light sources.
Li-Fi – Light Fidelity (Animated)
LiFi uses visible light communication and LED light bulbs to deliver high-speed wireless internet similar to WiFi. It provides higher bandwidth than radio waves and can be used in places where WiFi signals cannot reach. Some applications of LiFi include using traffic lights and vehicle lights to communicate, providing internet access on airplanes and underwater, and creating safe internet connections in hospitals. However, LiFi requires line of sight and can be interrupted by sunlight or other light sources.
lifi presentation
Hey guys this ppt is all about lifi presentation.
you can refer this presentation as your project .
this is our final presentation.
Li fi
This document discusses Li-Fi, a technology that uses light from LED bulbs to transmit data wirelessly. Li-Fi was invented in 2012 by German physicist Harald Haas and provides data transfer speeds over 1Gbps by using visible light, which is thousands of times faster than Wi-Fi's maximum speed of 54Mbps. Li-Fi overcomes many issues with radio waves like limited capacity, inefficiency, security, and availability by using visible light that is present everywhere and does not penetrate walls. It is considered a proven technology as the inventor demonstrated successful data transmission exceeding 10Mbps using an ordinary table lamp.
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LiFi Technology
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It was invented in the 1990s by Professor Harald Haas as an alternative to Wi-Fi that uses radio waves. Li-Fi has several advantages over Wi-Fi, including higher speeds, more available spectrum, and better security. It can be used in applications like traffic lights, hospitals, and airplanes to provide high-speed wireless connectivity without interfering with other wireless devices. The future potential of Li-Fi is significant as it could turn any light source into a wireless hotspot.
LIFI TECHNOLOGY
This document presents an overview of Li-Fi technology. Li-Fi uses light from LED bulbs to transmit data wirelessly, providing higher bandwidth than Wi-Fi. It was pioneered in the 1990s but is now gaining attention due to wireless spectrum congestion issues. Li-Fi has several advantages over Wi-Fi like better security, higher speed, and no interference. Potential applications include use in traffic lights, hospitals, airplanes, and underwater. However, challenges remain in ensuring line of sight and preventing interference from other light sources.
Li - Fi The Future Technology
Li-Fi is a new technology that uses light from LED bulbs to transmit data wirelessly. It provides higher speeds and more available bandwidth than traditional Wi-Fi networks. The presentation covers the history of Li-Fi development, how it works by varying the intensity of LED light faster than the human eye can detect, its advantages over Wi-Fi like higher speeds and security, potential applications in traffic lights, airplanes and underwater, and challenges to commercialization like the need for line of sight and modifications to existing devices. Overall, Li-Fi shows promise as a supplement to Wi-Fi but still faces technical hurdles to widespread adoption.
Li-Fi (light fedility)
LiFi is a new technology that uses visible light communication (VLC) to transmit data using LED light bulbs. It works by switching the LED bulbs on and off very fast to transmit digital ones and zeros. LiFi provides higher speeds than existing wireless technologies and has advantages like availability, efficiency, security and low cost. However, its signals cannot penetrate walls so it requires line of sight and wired bulbs in different rooms. Overall LiFi shows potential for a greener and safer wireless future.
lifi
lifi is a technology that uses LED's for data transmission . this presentation explains the problem with current RF technology and how lifi overcome it ,working of li-fi and its application
Lifi ppt
INDRODUCTION
HISTORY
HOW LIFI WORKS?
REAL TIME USAGE OF LIFI
HOW IT WORKS?
WIFI VS LIFI
APPLIOCATIONS
ADVANTAGES
DISADVANTAGES
CONCLUSION
Li-fi technology
Li-Fi is a new technology that uses visible light communication (VLC) to transmit data through LED light bulbs. It works by varying the intensity of light faster than what the human eye can detect. Li-Fi offers several advantages over traditional Wi-Fi, including higher capacity, better availability, higher security, and energy efficiency. It could help meet the rapidly increasing demand for wireless data as radio spectrum becomes more congested. If developed further, Li-Fi technology would allow wireless internet access from every light bulb.
Lifi final
LIFI (Light Fidelity) is a technology that uses visible light communication and infrared light to transmit data using LED light bulbs. It provides wireless communication that is similar to WiFi but uses the light spectrum instead of radio frequencies. LIFI has several advantages over WiFi like higher speed, more secure connections, and an unregulated spectrum. However, its signals cannot pass through walls like radio waves, so each room would need its own connected light source. LIFI could be used in applications like traffic lights communicating with cars, in airplanes where WiFi is restricted, and in places that need fast and secure data transmission.
Li-Fi
- Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. It is a viable alternative to Wi-Fi as it has a faster speed and more secure transmission.
- The technology was pioneered by German physicist Harald Hass. It works by switching LED bulbs on and off at a very high speed, which is undetectable to the human eye. A photodetector at the receiving end detects the signals and decodes the data.
- Li-Fi has several advantages over Wi-Fi including higher speed, more secure communication due to the inability of signals to pass through walls, lower implementation cost, and no interference with other wireless
Li fi technology
This document discusses Li-Fi technology, which uses visible light communication to transmit data wirelessly. Li-Fi was invented by German physicist Harald Haas in 2012 and uses LED lights to transmit data at speeds over 150 Mbps by varying the intensity of light faster than the human eye can detect. It has several advantages over Wi-Fi such as higher speed, more available spectrum, more security as light does not pass through walls, and is more efficient. Li-Fi has already been demonstrated successfully in transmitting data using an ordinary table lamp.
LI-FI TECHNOLOGY
Lifi Technology presentation best view in powerpoint 2013,16
By Zulafqar Ahmed
Comments below for more slides.
if you want some more and good slides comments below for particular slides
Li-Fi a complete presentation
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It provides a more efficient alternative to Wi-Fi by using visible light that has a much larger and underutilized spectrum than radio frequencies. Li-Fi works by varying the intensity of light from an LED faster than the human eye can detect to transmit digital signals. It has advantages over Wi-Fi like higher speed, more available spectrum, more security since light cannot pass through walls easily, and energy efficiency since it uses LED bulbs. Potential applications of Li-Fi include use in places where Wi-Fi is restricted like hospitals or aircraft.
li-fi technology
This document summarizes a seminar presentation on Li-Fi technology. It begins with an introduction explaining that Li-Fi uses LED light bulbs to transmit data wirelessly using visible light communication. It then explains how Li-Fi works by modulating data onto the light from LED bulbs. The document compares Li-Fi to Wi-Fi, noting Li-Fi's higher speeds and more localized coverage. It discusses real-world applications of Li-Fi including on airplanes and underwater. The document concludes by outlining advantages like high speeds and security, as well as challenges like limited range through obstacles.
Lifi Technology
Ashish Kumar Baghel and Chandraprakash Verma presented on Li-Fi technology at the Oriental Institute of Science and Tech in Bhopal on March 13, 2013. Li-Fi uses visible light communication to transmit data through LED bulbs that can switch on and off faster than the human eye can detect. The technology was pioneered in the 1990s by researchers in Germany, Korea, and Japan. Harald Haas continues advancing Li-Fi which could help address the congestion issues with radio spectrum as data demands double each year. Li-Fi has potential applications in traffic lights, intrinsically safe environments, and as public internet hotspots using street lamps. While still developing, Li-Fi shows promise to enable wireless
Lifi technology
Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. It was invented by Professor Harald Haas from the University of Edinburgh. Li-Fi transmits data through LED bulbs and receives it with photoreceptors, providing higher speeds than Wi-Fi without interference. Potential applications include use in traffic lights, industrial settings, airplanes, and underwater where radio frequencies do not work well. While Li-Fi provides more security and bandwidth than Wi-Fi, it requires line of sight and lights to remain on for operation.
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Li-Fi is a visible light communication system that uses LED light bulbs to transmit data wirelessly. It was coined by Professor Harald Haas in 2011 and provides high-speed communication similar to Wi-Fi but using light instead of radio waves. Li-Fi has several applications such as in traffic lights, airplanes, hospitals, and street lamps. It provides more secure and faster communication than Wi-Fi but has limitations like the need for line of sight and interference from other light sources. Current companies developing Li-Fi technology include pureLIFI and LIFI-X.
Li-Fi (light fidelity)
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It works by varying the intensity of LED light faster than the human eye can detect. As demand for wireless data doubles every year, Li-Fi offers a solution to overcome radio spectrum congestion by using the visible light spectrum. Li-Fi has potential applications in traffic lights, intrinsically safe environments like oil rigs, and public internet hotspots using street lamps. It may also enable underwater communication where Wi-Fi fails. While still developing, Li-Fi shows promise as a way to turn every light bulb into a wireless data connection point.
Li fi
LI-FI is transmission of data through illumination ,i.e. sending data through a LED light bulb that varies in intensity faster than human eye can follow
Lifi technology(nimesh bariya)
This document discusses LiFi technology, which transmits data through illumination using LED light bulbs. It was invented in 2012 by German physicist Harald Hass. LiFi works by switching LED lights on and off very quickly to transmit digital 1s and 0s. It provides wireless connectivity at speeds up to 1Gbps, faster than WiFi. Potential applications of LiFi include use in traffic lights, airplanes, and underwater communications since it does not interfere with radio frequencies. While it has advantages over WiFi like higher speeds and bandwidth, LiFi also has limitations such as requiring line of sight and being disrupted by external light sources.
Li-Fi – Light Fidelity (Animated)
LiFi uses visible light communication and LED light bulbs to deliver high-speed wireless internet similar to WiFi. It provides higher bandwidth than radio waves and can be used in places where WiFi signals cannot reach. Some applications of LiFi include using traffic lights and vehicle lights to communicate, providing internet access on airplanes and underwater, and creating safe internet connections in hospitals. However, LiFi requires line of sight and can be interrupted by sunlight or other light sources.
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Hey guys this ppt is all about lifi presentation.
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This document discusses Li-Fi, a technology that uses light from LED bulbs to transmit data wirelessly. Li-Fi was invented in 2012 by German physicist Harald Haas and provides data transfer speeds over 1Gbps by using visible light, which is thousands of times faster than Wi-Fi's maximum speed of 54Mbps. Li-Fi overcomes many issues with radio waves like limited capacity, inefficiency, security, and availability by using visible light that is present everywhere and does not penetrate walls. It is considered a proven technology as the inventor demonstrated successful data transmission exceeding 10Mbps using an ordinary table lamp.
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INTRODUCTION
HISTORY
PRESENT SCENARIO
ISSUES REGARDING RADIO SPECTRUM
VISIBLE LIGHT SPECTRUM
HOW LIFI WORKS
CONSTRUCTION OF LIFI
COMPARISON OF LIFI WITH WIFI
APPLICATIONS
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CONCLUSION
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Li-Fi is a fast, cheap, and bidirectional optical wireless technology that uses light-emitting diodes (LEDs) for data transmission. It is based on visible light communication between 400-800 THz and provides a wireless alternative to Wi-Fi by using light instead of radio waves. Li-Fi has several advantages over Wi-Fi such as having a higher speed of over 10 Gbps, being more secure due to the inability of light to pass through walls, and having a larger and less regulated bandwidth than radio waves. Potential applications of Li-Fi include use in traffic lights, airplanes, hospitals and as a means of underwater communication.
Li fi
Li-Fi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. It was invented by German physicist Harald Haas in 2011. Li-Fi provides higher speed and more secure data transmission than Wi-Fi as it does not penetrate walls and uses visible light spectrum which is in abundance. It has applications in traffic lights, airlines, petrochemical plants and underwater where radio waves cannot be used. While Li-Fi has advantages of high speed, security and availability, it also faces challenges of line of sight requirement and interference from other light sources.
powerpoint presentation of LiFi
This document discusses Li-Fi technology. It provides background on Li-Fi, noting that it uses LED lights to transmit data through light instead of radio waves like Wi-Fi. The document outlines some of the history of Li-Fi development and explains the basic concept of how data is encoded in the light. It then discusses potential applications of Li-Fi including in traffic lights, planes, underwater, and intrinsically safe environments. Advantages are highlighted such as high data rates, security, energy efficiency, and ability to work in places where Wi-Fi cannot. The conclusion is that Li-Fi could provide an alternative to Wi-Fi hotspots using existing light bulbs.
Li fi technology
Li-Fi is a wireless communication technology that uses light from LED bulbs to transmit data. It provides higher bandwidth than Wi-Fi and has advantages like low cost, secure transmission that cannot pass through walls, and no interference with other electronic devices. Li-Fi works by varying the intensity of light from an LED lamp to encode digital data that is received by a photodetector. It has potential applications in areas where radio frequencies are regulated like hospitals, aircrafts, and undersea. While Li-Fi requires line of sight and does not work in the absence of light, it could offer an efficient alternative to radio-based wireless as more devices access the internet and airwaves become congested.
Li fi
This document discusses Li-Fi technology, which uses visible light communication to transmit data wirelessly using LED lights. It was invented in 2011 by Harald Haas and provides data rates over 1 Gbps, much faster than traditional Wi-Fi. Li-Fi works by converting digital data into light pulses that can then be detected by a photodetector. It has many applications including smart lighting, mobile connectivity, and areas where radio waves are restricted. The technology is still developing but promises a greener alternative to radio-based wireless networks.
Li fi (light fidelity)
This document provides an introduction and overview of Li-Fi technology. It discusses the history of Li-Fi, how it works by transmitting data through LED light, its advantages over Wi-Fi including increased bandwidth and security, and potential applications. Some key points covered include:
- Li-Fi was originally proposed by Professor Harald Haas and uses visible light communication through LED bulbs to transmit data.
- It has advantages over radio spectrum technologies as the light spectrum is much larger and data can be transmitted at high speeds through subtle variations in light intensity.
- Potential applications include use in traffic lights to prevent accidents, underwater communications, and in places like hospitals, factories that restrict radio signals.
-
ppt on li-fi technology
This document summarizes a presentation on Li-Fi technology. It begins with an introduction and overview of Li-Fi, noting that it uses visible light communication and LED bulbs to transmit data. It then discusses the history of Li-Fi, including the first public demonstration in 2011. The document outlines the basic working process and construction of Li-Fi systems. It compares Li-Fi to Wi-Fi and discusses some applications. The document also briefly mentions security benefits and challenges facing Li-Fi development, such as the need for line of sight transmission. It concludes by stating that Li-Fi could provide a high-speed wireless alternative to congested radio frequencies.
Li fi technology
Li-Fi (Light Fidelity) is a new technology that uses visible light communication for wireless transmission of data using light-emitting diodes (LEDs). LEDs can be switched on and off at extremely high speeds to transmit digital signals. A controller is connected to LED bulbs to encode data onto the light. Researchers have achieved data rates over 500 megabytes per second using white LED lights. Li-Fi provides higher speeds, is more secure, has a larger spectrum range than Wi-Fi, and has applications for vehicles, traffic lights, street lamps, airplanes, and hospitals.
Li fi technology
This document is a presentation on Li-Fi technology, which uses visible light communication to transmit data wirelessly. It introduces Li-Fi and how it works using LED lights to transmit data through rapid on-off pulses too fast for the human eye to detect. Key benefits are its ability to transmit data at very high speeds, its efficiency using existing light infrastructure, and its ability to transmit in places where radio waves cannot due to interference. Examples of potential uses include in hospitals, vehicles, power plants and underwater.
Li fi
1) Li-Fi is a VLC technology developed by a team including Dr. Gordon Povey, Prof. Harald Haas, and Dr. Mostafa Afgani at the University of Edinburgh that uses LED lights to transmit data through illumination by varying the intensity faster than the human eye can detect.
2) It was first coined by Prof. Harald Haas in 2011 and allows wireless communication without radio waves, which can be dangerous in some environments like oil platforms.
3) Li-Fi works by using a microchip in an LED bulb to encode data by switching the LED on and off very fast to transmit 1s and 0s, which is received by a light sensitive detector and converted
Li fi alpna singh
Light-Fidelity
LI-FI is transmission of data through illumination, sending data through a LED light bulb that varies intensity faster than human eye can follow.
LiFi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission.
Li fi technology
This document discusses Li-fi technology, which uses LED light bulbs to transmit data wirelessly. It begins with an introduction to Li-fi and how it works by varying the intensity of light faster than the human eye can detect. The history of Li-fi development is then outlined, along with the present need for alternatives to radio spectrum. The document explains how Li-fi works and compares it to Wi-fi. Advantages of Li-fi include high data rates, security, and lack of health effects. Applications that could benefit from Li-fi are also proposed, such as traffic lights, hospitals, and street lamps providing wireless access.
Presentation1
Li-Fi is a new technology that uses visible light communication and LED bulbs to transmit wireless data using light instead of radio waves. It provides higher speeds, increased capacity, more security, and is more energy efficient than traditional Wi-Fi. Li-Fi could overcome issues with radio waves like limited spectrum capacity and help create a more sustainable wireless future by taking advantage of light that already exists in every environment.
LiFi
This document provides an overview of visible light communications (VLC), also known as Li-Fi. It discusses the history and invention of VLC, how VLC works by transmitting data through light bulb illumination at speeds too fast for the human eye to detect, its advantages over Wi-Fi like high security and availability anywhere light is present, and potential applications including use in traffic lights, hospitals, airplanes and underwater. The document also outlines the components needed for a VLC system including LEDs, photodiodes and control circuitry, and discusses future developments and limitations such as the need for line of sight transmission.
Lifi(light fidelity)
LIFI (Light Fidelity) is a new technology that uses visible light communication for wireless transmission of data using LED light bulbs. It was introduced by Professor Harald Haas at the University of Edinburgh. LIFI provides illumination as well as high-speed wireless communication and has advantages over WiFi such as higher speed, more secure transmission, lower cost, and an unregulated and vast light spectrum. However, it also faces challenges of light not penetrating solid objects and interference from other light sources. Potential applications of LIFI include use in airplanes, traffic lights, street lamps, and industries where radio transmissions are restricted.
LiGHT FIDILITY (LIFI)
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It can provide internet access from any light source at speeds over 100 Mbps. Li-Fi differs from Wi-Fi in that it does not use radio waves but instead transmits data through light waves, allowing for greater bandwidth and no interference. Some potential applications of Li-Fi include use in hospitals, on airplanes, and in power plants where radiowaves are not desirable. However, Li-Fi also faces challenges of requiring line of sight and not being able to penetrate solid objects like walls.
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presentation on lifi devices
- 1. A Presentation on LI-FI TECHNOLOGY Syed Ibad Nauman By
- 2. CONTENTS INTRODUCTION TO LIFI HOW DOES IT WORKS? COMPARISON WITH WI-FI 4 ISSUES WITH RADIOWAVE ALTERNATIVE FOR RADIO WAVE APPLICATION OF LI-FI IS IT A PROVEN TECHNOLOGY?
- 3. INTRODUCTION TO LI-FI LI-FI IS A TECHNOLOGY THAT USES THE LIGHT EMITTING DIODES TO TRANSMIT THE DATA WIRELESSLY. LI-FI IS FAST AND CHEAP OPTICAL VERSION OF WI-FI ,BASED ON VISIBLE LIGHT COMMUNICATION(VLC). VLC IS A DATA COMMUNICATION MEDIUM,WHICH USES THE VISIBLE LIGHT BETWEEN 400 THz (780 nm) and 800 THz (375 nm) AS OPTICAL CARRIER FOR DATA TRANSMISSION
- 5. WHO INVENTED IT ? • THIS TECHNOLOGY WAS INVENTED BY GERMAN PHYSICIST HARALD HAAS , FROM THE UNIVERSITY OF EDINBURGH ,U.K . • HE DEMONSTRATED IT IN THE YEAR 2012.`
- 6. HOW DOES LI-FI WORKS?
- 7. • THE HEART OF THIS TECHNOLOGY IS A NEW GENERATION HIGH BRIGHTNESS LED’S. • THESE LED’S VARIES IN INTENSITY (THAT IS GETS ON AND OFF) SO FAST THAT A HUMAN EYE CANNOT DETECT IT. • IF LED IS ON , THEN WE TRANSMIT A DIGITAL SIGNAL 1,AND IF THE LED IS OFF , THEN WE TRANSMIT A DIGITAL SIGNAL 0. • A CONTROLLER IS CONNECTED AT THE BACK SIDE OF THESE LED BULBS TO CODE DATA TO THESE LED’S.
- 8. ISSUES WITH RADIO WAVE • CAPACITY WITH THE ADVENT OF NEW TECHNOLOGIES LIKE 3G ,4G WE ARE RUNNING OUT OF SPECTRUM. THAT’S WHY RADIO WAVES ARE NOW BECOMING EXPENSIVE.
- 9. EFFICIENCY THERE ARE 1.4 MILLIONS CELLULAR RADIO BASE STATIONS . EFFICIECY OF EACH BASE STATION IS JUST 5%. MOST OF THE ENERGY IS NOT USED FOR TRANSMISSION BUT RATHER FOR COOLING DOWN THE BASE STATION.
- 10. SECURITY RADIO WAVES CAN PENETRATE THROUGH WALLS AND HENCE CAN BE INTERCEPTED. ANYONE WITH KNOWLEDGE AND BAD INTENTION CAN MISUSE IT. AVALILABLITY WE HAVE TO SWITCH OFF MOBILES IN AIRCRAFTS. IT IS ALSO NOT ADVISABLE TO USE MOBILES AT PETROL PUMPS.
- 11. ADVANTAGES OF LI-FI YOU CAN USE LI-FI IN HOSPITALS AND AIRCRFTS ALSO. CHEAPER THEN WIFI , SINCE VISIBLE LIGHT SPECTRUM IS A FREE SPECTRUM BAND. NO LICENSE NEEDED. THOUSANDS AND MILLIONS OF STREET LAMPS CAN BE COVERTED TO LI-FI SPOTS.
- 13. How Li-Fi Works ?
- 14. Li-Fi vs Wi-Fi
- 16. Li-Fi THANK YOU