Skip to main content

Casio PicapiCamera iPhone app is the world's first to use visible light communication technology

By


PicapiCamera, developed by Casio, is the world's first iPhone app which uses visible light communication technology.
To send and receive data via the app, the message to be sent is encoded using red, green and blue flashing lights and shown on the display. The receiver points their iPhone at the flashing lights and the data is transferred.
"There are two approaches to communication using visible light. One is to embed data in the light from illumination sources, by turning it on and off at high speed, as a natural way of communicating information. With that approach, devices use photodiodes. The other approach involves image sensors. A device that captures light is a camera, so the idea is to relate light obtained by a camera to information. We're using the camera approach - visible light communication through image sensors."
"When exchanging addresses, this system can send addresses to up to five people, rather than just one-to-one."
"If you would like to send your address to someone else, you just net to set it and then send it. This isn't just one on one, you can send your address to up to five people, and you can also receive five addresses at once too."
As the amount of data that can be transferred via the sequence of flashing lights is only a single 8-bit word, and ID number in conjunction with GPS data is used to download the relevant content from a cloud server.
In the future, Casio plans to use this system to compliment digital signage solutions, as it is able to deliver location specific content to users.
"We've asked the server, "What is ID 100 at Makuhari?" The reply "It's this picture" is coming back now."
"The imaging range is about 1 m with a 1 cm diameter. It's hard to read a QR code from a long range, but with this system, the camera only needs to capture a few pixels that make up a block of color. For example, if you can get, say, 30 cm making up a very small part of signage in front of a station, you can send information maybe a hundred meters. So, this system differs from QR codes by having a long range and enabling multiple content downloads."

Posted By Don Kennedy and Ryo Osuga at http://www.diginfo.tv/v/12-0117-d-en.php

Comments

Post a Comment

Popular posts from this blog

10 URLs to Find Out What Google Knows About You

By
Google is much more than just a search giant. It is also home to many of your favorite products: Gmail, YouTube, and Chrome, just to name a few. Apart from that, it also offers many products to help you  keep track of your data . Most of these are  hidden deep  inside the My Account dashboard, which many users don’t really know of. These hidden tools  may reveal interesting details  about your usage of Google’s many services. We’ve compiled a list of important Google URLs of some  hidden tools  that carry information of what you did with Google, mostly from the searches that you have made on their many products, the voice searches and typed out Google searches that you have made. Are you ready to  find out what how Google knows about you ? 1.  Google Dashboard Google Dashboard offers  transparency and control over the personal data stored with your Google Account. You can  view  and  manage the data gener...
Post a Comment
Read more

Wind Turbines

By
The Bahrain World Trade Center is the first skyscraper to have wind turbines integrated into the structure of the building.Three large wind turbines are suspended between two office towers. The towers are aerodynamically tapered to funnel wind and draw air into the turbines. This airfoil tapering allows the wind to enter the turbines at a perpendicular angle and increases air speed as much as 30 percent in each of the 95 ft wide turbine rotors. The turbines supply about 15 percent of the electricity used by the skyscraper - approximately the same amount of electricity used by 300 homes. Source: www.norwin.dk
Post a Comment
Read more

Edible water balloons that could get rid of the need for plastic bottles

By
In case you didn’t know, bottled water is destroying the planet. We know that we need to be drinking plenty of water. It’s important. But the plastic bottles they’re sold in are terrible for the environment. One solution is using reusable bottles that you can fill from any nearby taps instead of buying a new bottle each time. Another solution is much more exciting. A group of engineers from Skipping Rocks Lab have developed a wonderful thing called The Ooho!. It’s a globe filled water that you can pop in your mouth whole. The outer shell is made of algae, so it’s edible and biodegradable. Meaning there’s no need for packaging or plastic – the globes of water are self-contained and ready to consume. Exciting, right? Plus they’re wobbly and they look cool, which is always a bonus. The team have now created a crowdfunding page to make their creation available to the public, with goals of selling The Ooho! at festival and marathons within the next 12 m...
Post a Comment
Read more