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LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room

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PurpleSkyz

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Monday March 06, 2016
 
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 5disney
Disney wireless power transmission safely charges devices anywhere within a room
By LadyDragon
MONTREAL--(LadyDragon.com)06/03/16--6.25am EST, LadyDragon wrote - A new method developed by Disney Research for wirelessly transmitting power throughout a room enables users to charge electronic devices as seamlessly as they now connect to WiFi hotspots, eliminating the need for electrical cords or charging cradles.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 11disney
The researchers demonstrated their method, called quasistatic cavity resonance (QSCR), inside a specially built 16-by-16-foot room at their lab. They safely generated near-field standing magnetic waves that filled the interior of the room, making it possible to power several cellphones, fans and lights simultaneously.
"This new innovative method will make it possible for electrical power to become as ubiquitous as WiFi," said Alanson Sample, associate lab director & principal research scientist at Disney Research. "This in turn could enable new applications for robots and other small mobile devices by eliminating the need to replace batteries and wires for charging."
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 44disney
A research report on QSCR by the Disney Research team of Matthew J. Chabalko, Mohsen Shahmohammadi and Alanson P. Sample was published on Feb. 15, 2017 in the online journal PLOS ONE.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 33disney
"In this work, we've demonstrated room-scale wireless power, but there's no reason we couldn't scale this down to the size of a toy chest or up to the size of a warehouse," said Sample, who leads the lab's Wireless Systems Group.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 66disney
According to Sample, wireless power transmission is a long-standing technological dream. Celebrated inventor Nikola Tesla famously demonstrated a wireless lighting system in the 1890s and proposed a system for transmitting power long distances to homes and factories, though it never came to fruition. Today, most wireless power transmission occurs over very short distances, typically involving charging stands or pads.LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 77disney
The QSCR method involves inducing electrical currents in the metalized walls, floor and ceiling of a room, which in turn generate uniform magnetic fields that permeate the room's interior. This enables power to be transmitted efficiently to receiving coils that operate at the same resonant frequency as the magnetic fields. The induced currents in the structure are channeled through discrete capacitors, which isolate potentially harmful electrical fields.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 88disney
"Our simulations show we can transmit 1.9 kilowatts of power while meeting federal safety guidelines," Chabalko said. "This is equivalent to simultaneously charging 320 smart phones."
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 6disney
In the demonstration, the researchers constructed a 16-by-16-foot room with aluminum walls, ceiling and floor bolted to an aluminum frame. A copper pole was placed in the center of the room; a small gap was created in the pole, into which discrete capacitors were inserted.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 1disney
"It is those capacitors that set the electromagnetic frequency of the structure and confine the electric fields," Chabalko explained. Devices operating at that low megahertz frequency can receive power almost anywhere in the room. At the same time, the magnetic waves at that frequency don't interact with everyday materials, so other objects in the room are unaffected.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 10disney
Though the demonstration room was specially constructed, Sample said it likely will be possible to reduce the need for metalized walls, ceilings and floors in the future. It may be possible to retrofit existing structures, for instance, with modular panels or conductive paint. Larger spaces might be accommodated by using multiple copper poles.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 99disney
Combining creativity and innovation, this research continues Disney's rich legacy of innovation and leveraging technology to enhance the tools and systems of tomorrow.
LadyDragon Article ---> Disney wireless power transmission safely charges devices anywhere within a room 55disney



https://youtu.be/pkMbZmwhpDc

About Disney Research
Disney Research is a network of research laboratories supporting The Walt Disney Company. Its purpose is to pursue scientific and technological innovation to advance the company's broad media and entertainment efforts. Vice President Markus Gross manages Disney Research facilities in Los Angeles, Pittsburgh and Zürich, and works closely with the Pixar and ILM research groups in the San Francisco Bay Area. Research topics include computer graphics, animation, video processing, computer vision, robotics, wireless & mobile computing, human-computer interaction, displays, behavioral economics, and machine learning.
Website:
http://www.disneyresearch.com

https://youtu.be/gn7T599QaN8

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