Visible light communication (VLC) using light-emitting diodes (LEDs) is being developed to overcome spectrum congestion issues with the proliferation of internet-connected devices using radio frequency (RF) signals. VLC uses the visible light spectrum, which has 10,000 times more capacity than the RF spectrum. Li-Fi, demonstrated in 2011, transmits data through visible light modulation at speeds up to 10 Gbps. VLC allows for high-speed secure data transfer over short ranges using existing LED lights and additional photodiodes in devices. It has potential applications for device-to-device communication and high-security authentication through instant data transfer.
Light Fidelity is an emerging trend of Internet distributions. With speeds such as 100GBPS, it will be no less than a boon for the regular internet users. Lifi is a substitute of wifi where the internet is distributed to customers via lights, even if they are visibly off to the naked eye.
Li-Fi is a new paradigm for optical wireless technology to provide unprecendented connectivity within a localized data-centric environment. The increasing demand for higher bandwidths, faster and more secure data transmission as well as environmental and undoubtedly human friendly technology heralds the start of a major shift in wireless technology, a shift from RF to optical technologies.
The principle is simple: turn a light on and off so rapidly that the human eye can't see the flicker, but a photodetector can nonetheless pick up the stream of 1s and 0s the blinking bulb is transmitting. Compress the data, and you up the throughput even more. Old-style filament bulbs and fluorescent tubes aren't up to the task, but new, LED-based lighting is.
The principle is simple: turn a light on and off so rapidly that the human eye can't see the flicker, but a photodetector can nonetheless pick up the stream of 1s and 0s the blinking bulb is transmitting. Compress the data, and you up the throughput even more. Old-style filament bulbs and fluorescent tubes aren't up to the task, but new, LED-based lighting is.
You can get the basic theme of an emerging communication technology named "LiFi" which will overcome the drawbacks of WiFi by a good margin!
(For watching the GIF's use Slideshow)
a new class of high intensity light source of solid state design bringing clean lighting solutions to general. In traffic signals LiFi can be used which will communicate with the LED lights of the cars and accident numbers can be decreased.
Light Fidelity is an emerging trend of Internet distributions. With speeds such as 100GBPS, it will be no less than a boon for the regular internet users. Lifi is a substitute of wifi where the internet is distributed to customers via lights, even if they are visibly off to the naked eye.
Li-Fi is a new paradigm for optical wireless technology to provide unprecendented connectivity within a localized data-centric environment. The increasing demand for higher bandwidths, faster and more secure data transmission as well as environmental and undoubtedly human friendly technology heralds the start of a major shift in wireless technology, a shift from RF to optical technologies.
The principle is simple: turn a light on and off so rapidly that the human eye can't see the flicker, but a photodetector can nonetheless pick up the stream of 1s and 0s the blinking bulb is transmitting. Compress the data, and you up the throughput even more. Old-style filament bulbs and fluorescent tubes aren't up to the task, but new, LED-based lighting is.
The principle is simple: turn a light on and off so rapidly that the human eye can't see the flicker, but a photodetector can nonetheless pick up the stream of 1s and 0s the blinking bulb is transmitting. Compress the data, and you up the throughput even more. Old-style filament bulbs and fluorescent tubes aren't up to the task, but new, LED-based lighting is.
You can get the basic theme of an emerging communication technology named "LiFi" which will overcome the drawbacks of WiFi by a good margin!
(For watching the GIF's use Slideshow)
a new class of high intensity light source of solid state design bringing clean lighting solutions to general. In traffic signals LiFi can be used which will communicate with the LED lights of the cars and accident numbers can be decreased.
Building IoT Devices - From Prototype to ProductionAnwaarullah
This Slide decks walks through our journey of building an IoT Product from an Idea to Production. We've shared many of our lessons learned along the journey, the resources available in India and pitfalls to avoid.
This talk was given on the occasion of Global IoT Day.
The slide deck provides the details of IoT Architecture, Market/Projects worldwide, IoT Frameworks. Also covers overview of Raspberry Pi, and how can you start your IoT project with it.
In today’s emerging world of Internet, each and every thing is supposed to be in connected mode with the help of billions of smart devices. By connecting all the devises used in our day to day life, make our life trouble less and easy. We are incorporated in a world where we are used to have smart phones, smart cars, smart gadgets, smart homes and smart cities. Different institutes and researchers are working for creating a smart world for us but real question which we need to emphasis on is how to make dumb devises talk with uncommon hardware and communication technology. For the same what kind of mechanism to use with various protocols and less human interaction. The purpose is to provide the key area for application of IoT and a platform on which various devices having different mechanism and protocols can communicate with an integrated architecture.
Technical Challenges - How To Design IoT SystemsEmil Kirilov
Short Presentation The Ultimate Algorithm For Creating IoT Hardware Devices. The Algorithm Consists Of 10 Steps:
1. Data & Actions
2. User Interface
3. Security
4. Data Representation
5. Internet Connection
6. Application Logic
7. Power Supply
8. Microcontroller
9. Development Tools
10. Other
Confusion of Things — The IoT Hardware KerfuffleOmer Kilic
Presented at OSHCamp 2015, as part of Wuthering Bytes at Hebden Bridge
While the definition of the term IoT (i.e: Internet of Things) is as cloudy as the “cloud”, everyone seems to be doing it. With excitement levels reaching stratospheric levels, the amount of buzzword-driven articles and colourful (and oh so unnecessary) abstract vector drawings that depict toasters communicating with cars have essentially made lives of many engineers who just want to build things a living hell.
This talk will strip back the layers of marketing and aim to answer the question: “Which hardware platform should you use for building connected devices?”. With the plethora of chips/single board computers and specifically IoT-branded offerings out there, the platform choice does get a little difficult at times. By breaking down the application at hand into certain key requirement categories, this process could be simplified. There will also be mention of some of the most popular hardware platforms and how they differ from each other.
Internet of Things (IoT) overview powered by Red HatDavid Bericat
Introduction delivered at the Summit session with Accenture, before they presented their Connected Platform as a Service (CPaaS) which uses Red Hat JBoss Fuse and A-MQ as their core foundation technologies for integration and messaging.
The Internet-of-Things (IoT) is a upcoming field which aims to provided any time, any place, anywhere connectivity by seamlessly integrating devices with solutions. In this presentation we have shared some of the real time product design challenges with IoT. The presentation was done in the Electronics Rocks conference held at NIMHANS convention center, Bengaluru, India
This presentation introduces to the world of hardware everyone can use to get stated with Internet of Things (IoT) such as Arduino, Raspberry Pi and ESP8266.
To improve the excellence of Intelligent Transportation System (ITS) with the help of Optical communication technology using an LED in the transmitter side and a camera receiver side, which uses an improved CMOS image sensor which is an optical communication image sensor (OCI). The OCI has a “communication pixel (CPx)” that can effectively respond to light intensity changes and an output section of a “flag image” in which only high-radiant light sources, such as LEDs, have emerge. The vehicle to vehicle communication scheme consists of the LED transmitter located on a moving front vehicle and the camera as receiver is placed on a next followed vehicle. The received information can be used for more subsequent improvement in vehicle control and to prevent from accident collisions.
Light Fidelity (Li-Fi) is a bidirectional, high speed , fully networked wireless communication technology similar to Wi-Fi. Li-Fi was first put forward by Professor Harald Haas,University of Edinburgh, during a TED Talk in 2011. Li-Fi is a form of visible light communication and a subset of optical wireless communications (OWC) and could be a complement to RF communication (Wi-Fi or Cellular network), or even a replacement in contexts of data broadcasting. It is so far measured to be about 100 times faster than some Wi-Fi implementations, reaching speeds of 224 gigabits per second.
Whether you’re using wireless internet in a coffee shop, stealing it from the guy next door, or competing for
bandwidth at a conference, you’ve probably gotten frustrated at the slow speeds you face when more than one device is
tapped into the network. As more and more people and their many devices access wireless internet, clogged airwaves
are going to make it increasingly difficult to latch onto a reliable signal. But radio waves are just one part of the
spectrum that can carry our data. What if we could use other waves to surf the internet? One German physicist,DR.
Harald Haas, has come up with a solution 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. It’s the same idea
behind infrared remote controls, but far more powerful. Haas says his invention, which he calls D-Light, can produce
data rates faster than 10 megabits per second, which is speedier than your average broadband connection. He envisions a
future where data for laptops, smartphones, and tablets is transmitted through the light in a room. And security would be
a snap—if you can’t see the light, you can’t access the data. Li-Fi is a VLC, visible light communication, technology
developed by a team of scientists
Design, Working, Challenges, Applications, Advantages and Disadvantages of Li...ijtsrd
This article demonstrates the definition of Li Fi Light Fidelity , its different applications, Advantages, Disadvantages as well as Challenges which would be great for an upcoming generation under wireless technology. The research is based on the various factors, consequences and risk factors associated with the advent of this field. This also demonstrates the communication of worldwide speaks with VLC. Li Fi could be a wireless networking technology thats wont to transmitting data from one device to a different device. This research paper covers the applications of Li Fi and compare with existing technology like Wi Fi. Nisha Shelke | Dr. Anandhi Giri ""Design, Working, Challenges, Applications, Advantages and Disadvantages of Li-Fi in Wireless Networks"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020,
URL: https://www.ijtsrd.com/papers/ijtsrd30249.pdf
Paper Url : https://www.ijtsrd.com/computer-science/computer-network/30249/design-working-challenges-applications-advantages-and-disadvantages-of-li-fi-in-wireless-networks/nisha-shelke
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
2. Smart devices everywhere – 26 billion
devices will be in IoT by 2020.
RF spectrum is congested and new
devices will cause more interference
Cisco mobile data forecast
1𝐸𝐵 = 10006 bytes
3. To overcome this spectrum issue, Visible
Light Communication (VLC) is being
developed.
The spectrum of Visible light is 10,000 times
more than the spectrum of RF.
The data transfer rate of VLC is very high.
Li Fi – an VLC technology demonstrated by
Dr. Harald Haas in 2011
5. Transmits data using light. LED is used as
transmitter.
High data rates achieved with DC biased
Optical (DCO) OFDM and Spatial Modulation
techniques.
Intensity of light modulated at high rate.
10 Gbps Li Fi prototype tested by Sisoft in
2014
6. Fujitsu Laboratories developed a model to
replace QR code scanning with Li Fi
technology.
Philips successfully used Li Fi to create
shopping assistant.
In both cases, Fixed LEDs transmits data.
Smart phone camera used as receiver. So low
bit rate data transfer.
7.
8. One Smart device to another data transfer
- all devices will have both transmitter and
receiver. LED flash in device can be transmitter.
Photodiode has to be added additionally
- photo diode & High data rate LED will make
short range high data transfer.(up to 200 Mbps)
Flash transfer- make use of LED flash to
transmit huge data unidirectional.
9. Transmitter – Commercial Phosphor
based white LED
Receiver- low cost photodiode; single
photodiode with 1.2Gbps used in OFC.
Customized diode for VLC economically
Signal Processing module
Almost analogous to 4G LTE.
Therefore, with latest technology chip size
in Nano meters
10.
11. Large bandwidth – around 100 MHz here
High Data rate
Secure connection – user can see the range &
light won’t penetrate wall
No delay for connection as there will be no
need for authentication
No harmful radiation
12. Almost Line of Sight transmission
Short distance – up to 1 m since the use of
single low power LED
Two way Li Fi connection is not viable – at an
instant device can either send or receive data
simplex transmission
13. High speed wireless device to device data
transfer
It can transmit large information instantly. So
it can be used as high security pass - a set of
(can be billion) security codes.
This type of authentication can be used at
ATM
Secured Places and
Secured internet connection/ computer
14. Future role of Light
Under Internet of Everything, VLC will play
a vital role. LED lighting is being increased due
to its efficiency.
Our proposed idea will be available in all
smart devices in a decade.
Already Optical communication is backbone
in the form of OFC. Like our proposed short
range communications may create all optical
network.