A presention on LIFI technology..
Use MS Office 13 to view the original fonts and pics used within(as they are not supported in the previous versions..)
This is the latest technolgy which encourages viewers. Also this technolgy is vast because researchers are still researching about this technolgy so that this technolgy can be used practically all over the world.
This is the latest technolgy which encourages viewers. Also this technolgy is vast because researchers are still researching about this technolgy so that this technolgy can be used practically all over the world.
Li fi(led transmission of data) presentationKakashi57
LIFI –”LIGHT FIDEALITY” 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. Li-Fi is a light based Wi-Fi it uses light instead of radio waves to transmit information.
HISTORY - The technology truly began during the year 1990’s in countries like Germany , Korea and Japan where they discovered LED’s could be retrofitted to send information . Prof. Harald Hass from university of Edinburgh. continues to wow the world with the potential to use light for communication He demonstrated in year 2012.
5. IMPLEMENTATION OF LI-FI The LI-FI product consists of three primary sub assemblies A. Emitter B. RF Driver C. Power Supply
6. FUNCTION OF BULB ASSEMBLY - At the heart of LI-FI is the bulb sub assembly where a sealed bulb is embedded in a dielectric material The dielectric material serves two purposes A. Wave guide B. Electric field
7. RF DRIVER - Power amplifier (PA) assembly that uses an LDMOS device. Converts electrical energy into RF power. The PA is designed to ruggedness and efficiency. The RF driver also contains controls circuit for digital and analog lighting controls.
8. HOW LI-FI WORKS- Operational procedure is very simple, if the LED is on, you transmit a digit 1, if its off you transmit a digit 0. the LED’s can be switched on and off quickly, which gives nice opportunities for transmitting data. hence all that us required is some LEDS and a controller that code data into those LEDs. We have to just vary the rate at which the LEDs flicker depending upon the data we want to encode. Thus every light source will work as a hub for data transmission. IMPLEMENTATION OF LI-FI The LI-FI product consists of three primary sub assemblies A. Emitter B. RF Driver C. Power Supply
6. FUNCTION OF BULB ASSEMBLY - At the heart of LI-FI is the bulb sub assembly where a sealed bulb is embedded in a dielectric material The dielectric material serves two purposes A. Wave guide B. Electric field
7. RF DRIVER - Power amplifier (PA) assembly that uses an LDMOS device. Converts electrical energy into RF power. The PA is designed to ruggedness and efficiency. The RF driver also contains controls circuit for digital and analog lighting controls.
8. HOW LI-FI WORKS- Operational procedure is very simple, if the LED is on, you transmit a digit 1, if its off you transmit a digit 0. the LED’s can be switched on and off quickly, which gives nice opportunities for transmitting data. hence all that us required is some LEDS and a controller that code data into those LEDs. We have to just vary the rate at which the LEDs flicker depending upon the data we want to encode. Thus every light source will work as a hub for data transmission
Li-Fi is the term some have used to label the fast and cheap wireless-communication system, which is the optical version of Wi-Fi. The term was first used in this context by Harald Haas in his TED Global talk on Visible Light Communication(VLC). The technology was demonstrated at the 2012 Consumer Electronics Show in Las Vegas using a pair of Casio smartphones to exchange data using light of varying intensity given off from their screens, detectable at a distance of up to ten meters. For more recent trends in electronics please visit radeshyamece.blogspot.com
With the vast growing gadgets, their usage and their developments led to the advancement in the Wi-Fi which provides a technology so called Li-Fi.Li-Fi is a technology that makes use of LED light which helps in the transmission of data much more faster and flexible than data that can be transmitted through Wi-Fi.Light reaches nearly everywhere so communication can also go along with light freely. Light Fidelity is a branch of optical wireless communication which is an emerging technology. By using visible light as transmission medium, Li-Fi provides wireless indoor communication. The bit rate achieved by Li-Fi cannot be achieved by Wi-Fi.. Dr herald Haas ,the professor of mobile communications at the university of Edinburgh school of engineering ,first time publically displayed the proof of Light Fidelity(Li-Fi) ,a method of Visible Light communication(VLC). Li-Fi is the transfer of data through light by taking fiber out of fiber optics and sending data through LED light.
Li fi(led transmission of data) presentationKakashi57
LIFI –”LIGHT FIDEALITY” 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. Li-Fi is a light based Wi-Fi it uses light instead of radio waves to transmit information.
HISTORY - The technology truly began during the year 1990’s in countries like Germany , Korea and Japan where they discovered LED’s could be retrofitted to send information . Prof. Harald Hass from university of Edinburgh. continues to wow the world with the potential to use light for communication He demonstrated in year 2012.
5. IMPLEMENTATION OF LI-FI The LI-FI product consists of three primary sub assemblies A. Emitter B. RF Driver C. Power Supply
6. FUNCTION OF BULB ASSEMBLY - At the heart of LI-FI is the bulb sub assembly where a sealed bulb is embedded in a dielectric material The dielectric material serves two purposes A. Wave guide B. Electric field
7. RF DRIVER - Power amplifier (PA) assembly that uses an LDMOS device. Converts electrical energy into RF power. The PA is designed to ruggedness and efficiency. The RF driver also contains controls circuit for digital and analog lighting controls.
8. HOW LI-FI WORKS- Operational procedure is very simple, if the LED is on, you transmit a digit 1, if its off you transmit a digit 0. the LED’s can be switched on and off quickly, which gives nice opportunities for transmitting data. hence all that us required is some LEDS and a controller that code data into those LEDs. We have to just vary the rate at which the LEDs flicker depending upon the data we want to encode. Thus every light source will work as a hub for data transmission. IMPLEMENTATION OF LI-FI The LI-FI product consists of three primary sub assemblies A. Emitter B. RF Driver C. Power Supply
6. FUNCTION OF BULB ASSEMBLY - At the heart of LI-FI is the bulb sub assembly where a sealed bulb is embedded in a dielectric material The dielectric material serves two purposes A. Wave guide B. Electric field
7. RF DRIVER - Power amplifier (PA) assembly that uses an LDMOS device. Converts electrical energy into RF power. The PA is designed to ruggedness and efficiency. The RF driver also contains controls circuit for digital and analog lighting controls.
8. HOW LI-FI WORKS- Operational procedure is very simple, if the LED is on, you transmit a digit 1, if its off you transmit a digit 0. the LED’s can be switched on and off quickly, which gives nice opportunities for transmitting data. hence all that us required is some LEDS and a controller that code data into those LEDs. We have to just vary the rate at which the LEDs flicker depending upon the data we want to encode. Thus every light source will work as a hub for data transmission
Li-Fi is the term some have used to label the fast and cheap wireless-communication system, which is the optical version of Wi-Fi. The term was first used in this context by Harald Haas in his TED Global talk on Visible Light Communication(VLC). The technology was demonstrated at the 2012 Consumer Electronics Show in Las Vegas using a pair of Casio smartphones to exchange data using light of varying intensity given off from their screens, detectable at a distance of up to ten meters. For more recent trends in electronics please visit radeshyamece.blogspot.com
With the vast growing gadgets, their usage and their developments led to the advancement in the Wi-Fi which provides a technology so called Li-Fi.Li-Fi is a technology that makes use of LED light which helps in the transmission of data much more faster and flexible than data that can be transmitted through Wi-Fi.Light reaches nearly everywhere so communication can also go along with light freely. Light Fidelity is a branch of optical wireless communication which is an emerging technology. By using visible light as transmission medium, Li-Fi provides wireless indoor communication. The bit rate achieved by Li-Fi cannot be achieved by Wi-Fi.. Dr herald Haas ,the professor of mobile communications at the university of Edinburgh school of engineering ,first time publically displayed the proof of Light Fidelity(Li-Fi) ,a method of Visible Light communication(VLC). Li-Fi is the transfer of data through light by taking fiber out of fiber optics and sending data through LED light.
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
hey guyz this is the presentation iv made in my last year of engineering and got very nice feedbacks. my topic was oled(organic light emitting diodes).. iv given all its highlited informations with pictures
Li-Fi can be thought of as a light-based Wi-Fi. That is, it uses light instead of radio waves to transmit information. And instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information. Since simple light bulbs are used, there can technically be any number of access points.
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.
LiFi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission.
LiFi is designed to use LED light bulbs similar to those currently in use in many energy-conscious homes and offices.
However, LiFi bulbs are outfitted with a chip that modulates the light imperceptibly for optical data transmission.
LiFi data is transmitted by the LED bulbs and received by photoreceptors
Li fi(light fidelity)-the future technology in wirelessakshay_panchal
Li-Fi is a new wireless technology to provide
the connectivity with in localized network environment.
The main principle of this technology is we can transmit
the data using light illumination by using light-emitting
diodes where radio frequency is media in Wi-Fi and
LED bulb light intensity is faster than human eye can
follow. Prof Harald Haas an expert in optical wireless
communications at the University of Edinburgh, he was
demonstrated how an LED bulb equipped with signal
processing technology could stream a high-definition
video to a computer. By using this technology a one-watt
LED light bulb would be enough to provide net
connectivity to four computers. He coined the term
"light fidelity" or li-fi and set up a private company,
Pure VLC, to exploit the technology. . He envisions a
future where data for laptops, smart phones, and tablets
is transmitted through the light in a room. And security
would be snap – if you can’t see the light, you can’t
access the data.
Li-Fi Technology,LI-FI ENERGY TRANSFORMATIONPrasant Kumar
LiFi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission.
LiFi is designed to use LED light bulbs similar to those currently in use in many energy-conscious homes and offices.
LiFi data is transmitted by the LED bulbs and received by photoreceptors.
Professor Harald Haas, from the University of Edinburgh in the UK, is widely recognised 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.
Li-Fi technology is based on LEDs for the transfer of data.
The transfer of the data can be with the help of all kinds of light, no matter the part of the spectrum that they belong.
That is, the light can belong to the invisible, ultraviolet or the visible part of the spectrum.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
3. From using wireless internet in a coffee shop or stealing it from the
guy next door to competing for bandwidth at a conference, the
most probable cause of frustration is the decreasing speed due to
more than one device being are tapped into the network.
If we have a limited internet plan, say for example 5GB for 30days,
then we have to make sure that that our network isn’t being used by
someone else( i.e. We have to password protect our network,
thereby preventing unauthorized extra usage).
The radio waves used for transmitting data in WIFI networks has
detrimental impact on human health.
3
5. Introduction to LIFI networks
Data Through Illumination: A German physicist, Dr. Harald Haas,
has come up with a solution to address the problems with WIFI networks,
he calls “Data Through Illumination”—taking the fiber out of fiber optics
by sending data through an LED light bulb that varies in intensity faster
than the human eye can follow.
Light Fidelity: And this technology is called“Light Fidelity”, popularly
know as LIFI.
5G Visible Light Communication, Technology: LI-FI is 5G Visible
Light Communication, Technology.
The light from light emitting diodes (LED’s) is used as medium
to deliver networked, mobile, high speed communication: The
light is provided by light emitting diodes (LED’s) which acts as medium
to deliver networked, mobile, high speed communication just as WI-FI or
Optical fibre.
With LIFI is possible to encode the data into the light by varying the rate
at which the LED’s flicker ON and OFF which is too quickly to be noticed
by the human eye.
5
7. Li-Fi is a Visible Light Communication (VLC), technology developed by a
team of scientists including Dr. Gordon Povey, Prof. Harald
Haas and Dr. Mostafa Afgani at the University of Edinburgh.
Prof. Harald Haas
7
9. Professor Harald Haas, from the University of
Edinburgh in the UK, is widely recognised as the
original founder of Li-Fi. He coined the term Li-Fi
and is Chair man of Mobile Communications at
the University of Edinburgh and co-founder of
pureLiFi.
The general term visible light communication
(VLC), includes any use of the visible light portion
of the electromagnetic spectrum to transmit
information.
The D-Light project at Edinburgh's Institute for
Digital Communications was funded from January
2010 to January 2012.
Haas promoted this technology in his 2011 TED
Global talk and helped start a company to market
it.
PureLiFi, formerly pureVLC, is an original equipment
manufacturer (OEM) firm set up to commercialize
Li-Fi products for integration with existing LED-
lighting systems.
9
10. History (Contd…)
In October 2011, companies and industry groups formed the Li-Fi
Consortium, to promote high-speed optical wireless systems and to
overcome the limited amount of radio-based wireless spectrum
available by exploiting a completely different part of the
electromagnetic spectrum.
VLC technology was exhibited in 2012 using Li-Fi.
By August 2013, data rates of over 1.6 Gbit/s were demonstrated over
a single color LED.
In September 2013, a press release said that Li-Fi, or VLC systems in
general, do not require line-of-sight conditions.
In October 2013, it was reported Chinese manufacturers were working
on Li-Fi development kits.
Philips lighting company has developed a VLC system for
shoppers at stores. They have to download an app on their
smartphone and then their smartphone works with the LEDs in the
store. The LEDs can pinpoint where they are at in the store and give
them corresponding coupons and information based on where aisle
they are on and what they are looking at.
10
11. Present Scenario
VLC technology is ready right now; it's being installed in
museums and businesses across France, and is being
embraced by EDF, one of the nation's largest utilities.
The First VLC smartphone prototype was
presented at the Consumer Electronics Show in Las
Vegas from January 7–10 in 2014.
The phone uses SunPartner's Wysips CONNECT. A
clear thin layer of crystal glass can be added to small
screens like watches and smartphones that make
them solar powered. Smartphones could gain 15%
more battery life during a typical day. This first
smartphones using this technology should arrive in
2015. This screen can also work to receive VLC signals
and so can the smartphone camera.
The cost of these screens per smartphone is between
$2 and $3, much cheaper than most new
technology.
11
15. Different Electromagnetic
Spectrums and their potentiality
Radio
Waves
Infrared Visible Ultraviolet X Rays Gamma
Rays
In
sufficient
spectrum
for
increasing
data
Low power
application
Which is
not used
so far.
Dangerous
for human
body
Used for
hospitals
and
security
checking
It is not
used
generally
15
17. White LED light bulbs: Li-Fi is typically implemented using white LED light bulbs at the
downlink transmitter which normally used for illumination only by applying a constant
current.
Optical output is varied at extremely high speed: The LEDs can be switched on and off very
quickly which gives nice opportunity for data transfer in the form of Binary code. Hence, by
fast and subtle variations of the current, the optical output can be made to vary at
extremely high speeds. This very property of optical current is used in Li-Fi setup.
Operational Procedure: The operational procedure is very simple-, if the LED is on, you
transmit a digital 1, if it’s off you transmit a 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 researches say that using a micro-LED light bulb they have achieved a data transmission
speed of 10Gbps using LI-FI.
17
18. Non technical Perspective
10,000 times as broad a spectrum as the radio frequencies which Wi-Fi
uses: Visible light has 10,000 times as broad a spectrum as the radio
frequencies which Wi-Fi uses, allowing for much more bandwidth, once
tapped.
Light bulbs are made to flicker at extremely high speed that human eye
can’t detect: This is accomplished by the flickering of LED light bulbs to
create binary code (on = 1, off = 0), and is done at higher rates than the
human eye can detect.
Shed a couple of extra bucks on the lighting solution and get an
incredibly fast internet connection: Which basically means “The more LEDs
in your lamp, the more data it can process, and by shedding a couple of
extra bucks on the lighting solutions of your housing or office you’re
getting an incredibly fast and secure internet connection.”
18
19. Properties of LIFI
Light-based Wi-Fi: LIFI uses light instead of radio waves to transmit
information. And instead of Wi-Fi modems, Li-Fi would use
transceiver-fitted LED lamps that can light a room as well as transmit
and receive information. Since simple light bulbs are used, there can
technically be any number of access points.
Unutilized electromagnetic spectrum is used: This technology uses a
part of the electromagnetic spectrum that is still not greatly utilized.
The Visible Spectrum.
No major ill effect: Light is in fact very much part of our lives for
millions and millions of years and does not have any major ill effect.
19
21. Source
A high brightness white LED, acts as a communication source It’s
guided by the PCB and powered by PA and is enclosed in an aluminum
enclosure
Bulb: The high concentration of energy in the electric field vaporizes the
contents of the bulb to a plasma state at the bulb’s center; this controlled
plasma generates an intense source of light.
RF power amplifier circuit (PA): An RF (radio-frequency) signal is generated
by the solid-state PA(Power Amplifier) and is guided into an electric field
about the bulb.
Printed circuit board (PCB): The PCB controls the electrical inputs and
outputs of the lamp and houses the microcontroller used to manage
different lamp functions.
Enclosure: All of these subassemblies are contained in an aluminum
enclosure
21
22. Receiver
A silicon photodiode, which shows good response to visible
wavelength region serving as the receiving element.
22
24. LIFI Network
A few additional features required to provide the same
qualities as an RF-based wireless network: A wireless local
area network based on Li-Fi technology needs some additional
features to provide the same qualities as an RF-based wireless
network, without losing the main advantages Li-Fi technology is able
to provide.
The missing links for a fully developed Li-Fi WLAN are elaborated in
the next few slides
24
25. The Li-Fi room connector
Optical signals can’t penetrate walls: Optical signals, obviously
they can’t penetrate walls. How to the offence of many this is an
advantage (relation to security issues). However, in order to provide an
optical wireless local area network, rooms needs to be connected with
each other. This is achieved via the Li-Fi room connector.
Li-Fi room connector is a replicator who sends the data
stream from one side of the wall to the other side of the
wall via an optical fibre cable: The Li-Fi room connector is a
replicator who sends the data stream from one side of the wall to the
other side of the wall via an optical fibre cable, which is connecting the
two room connectors on each side of the wall. With smaller rooms, the
Li-Fi room connector might be sufficient as the only Li-Fi hotspot in the
room.
25
27. The LIFI Router
Serves as connection to the external link:
The Li-Fi router is the networks connection to the
external link (fibre optic cable, DSL, GigE, etc.).
Useful for small office or home use with
cloud & server functions: The application is
mainly useful for small office or home use with
cloud & server functions.
Covers a radius of 20 meters with a
100 Mbps transmission speed: It
connects office and/or entertainment
equipment and covers a radius of 20 meters
with a 100 Mbps transmission speed.
The product is however developed to a proof-
of-concept stage.
27
29. Software solutions enabling the user of controlling all the
features within a data centric Li--Fi environment: The Li-Fi
cloud is a software solutions enabling the user of controlling all the
features within a data centric Li--Fi environment. Part of this software
has been developed already in connection with the developments of
the Li-Fi applications we offer per today.
Local optical communication network with local data cloud
structure and in house server/router: It’s basically local optical
communication network with local data cloud structure and in house
server/router
Data rates: It includes "on the move" data transfer at 100 Mbit/s,
including Giga Speed data transfer and reception up to10 Gbit/s
It includes security features
Energy saving/environmental features: It includes energy
saving/environmental features, controlled, for example, by optical
smart phone
29
30. Features
Connects all office and entertainment equipment
Controls all data and entertainment equipment via smartphone
Displays all files on any screen (TV,PC, etc.)
Supports file access from any point + and via any device
Stores all data in one central server/computer
Supports data transfer and reception at 10 Gbit/s
Supports "on the move" data transfer at 100 Mbit/s
Monitors the entire optical network area
Detects motion in the entire optical network area if wanted
Controls all security features via smart phone
Controls lighting via smart phone
Supports control of heating
Supports control of any connected electrical equipment
Supports energy saving/environmental features via smart phone
Bridges disparate data formats
Connects your local cloud to external line (fiberoptic, GigE, ADSL, etc.)
30
31. Uses
Private home wireless data network with local cloud &
server function: It can be used in private home wireless data
network with local cloud & server function
Corporate wireless data network with local cloud &
server function: It also has wide applications in corporate wireless
data network with local cloud & server function
31
37. Hospitals
Places where Wi-Fi isn’t allowed due to radiation
concerns: LIFI can be used in operating rooms where Wi-Fi isn’t
allowed due to radiation concerns.
In invasive bio medical instruments: It may also be used in
invasive bio medical instruments where it’s not safe to use other
radio frequencies
37
39. In Vehicles and Traffic Lights
Avoidance of Accidents:
LIFI is sensors can be implanted in street lights, possible
sending your car info about road conditions other
warnings: One of the smartest application of LIFI is sensors can be
implanted in street lights, possible sending your car info about road
conditions, warning you about the guy you can’t see speeding towards the
intersection, or instantly transmitting his plate number to the cops when he
does.
Sensors implanted in front and rear bumpers could receive
data transmitted from rear lights of other car: Sensors implanted
in front and rear bumpers could receive data transmitted from rear lights of
the car just veered into your lane while you were texting. Both drivers are
warned (or may be the car takes over) and the accident is averted.
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41. Product Retailing
High speed web access through lighting in malls a
customer can passively gather data about reviews and
pricing of any product on display: With high speed web
access through lighting in malls a customer can passively gather
data about reviews and pricing and ultimately walk out the door
with the item they might otherwise paused at for a moment.
Service of secure high speed connection to simulate
your experience researching and purchasing at home:
Not only is Li-Fi able to make the process less intrusive than say, QR
codes, but it provides you the service of secure high speed
connection to simulate your experience researching and
purchasing at home.
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43. Offices
Alternative to Optical Fibres: A common problem within offices
is that fiber optic cable can’t afforded yet high speed internet is
required. Li-Fi cheaply solves the office Internet woes and adds a
layer of security to boot.
100 Mbps connections.
Encoded Transmissions: Plus, added encoded transmissions.
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46. Lecture Halls/ Seminars
Downloading notes from blogs of respective teachers:
Often we encounter teachers telling us to download lecture notes
from their blog in my time. With LIFI the notes could be downloaded
by the students in the hall itself, so that they could follow along as
the lecture progressed.
Interactive classroom with interconnected devices:
Imagine how interactive the classroom could be with real-time
interconnectivity between 500 devices.
Sharing questions not only with teachers but the entire
class: Sharing questions with not only the teacher but the entire
class, and no one need be left behind.
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48. Incorporation of LIFI Sensors in Light
Posts
News Updates
Updates about Natural Calamity: It could keep us informed & save
lives. Say there’s an earthquake in Kolkata or a cyclone. The average
people of Kolkata may not know what the protocols are for those kinds
of disasters. Until they pass under a street light, that is has a LIFI
transmitter making them aware of the necessary details through their
smart phones.
Emergency Communication in Subway stations and tunnels,
and other common dead zones: With Li-Fi, if there’s light, one can
be online. Subway stations and tunnels, common dead zones for most
emergency communications, pose no obstruction.
Cheap high-speed Web access to every street corner: In times less
stressing cities could opt to provide cheap high-speed Web access to
every street corner.
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50. Smart Museums
Deliver much more information on pieces in their
collection than those tiny cards they paste: Li-Fi could
enable a museum to deliver much more information on pieces in
their collection than those tiny cards they paste to the walls could
ever dream of.
Learn about the artist’s history, listen to an audio tour,
peruse recent auctions of their work, etc: It would be
possible to learn about the artist’s history, listen to an audio tour,
peruse recent auctions of their work.
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