Disney Develops a Method for Wirelessly Powering an Entire Room

Disney Research has created a prototype of a room which is capable of wirelessly providing power to phones and household devices.

"Our simulations show we can transmit 1.9 kilowatts of power while meeting federal safety guidelines", Matthew Chabalko, associate research scientist at Disney Research in Pittsburgh, said. They published their findings in the journal PLOS ONE.

Free-roaming wireless power has been a dream of engineers since the days of Tesla and Edison waging their war of innovation but a number of technical hurdles have prevented it from becoming a reality.

Research scientists at Disney Research in the United States are introducing quasistatic cavity resonance (QSCR), which can enable cabinets, rooms, and warehouses, to generate quasistatic magnetic fields that safely deliver kilowatts of power to mobile receivers contained almost anywhere within. These receivers can be connected to a device, like a phone or fan, to supply it with power. In its center was a copper tube between the floor and the ceiling, with a current running through it. The middle of the pipe was cut out and in the gap the researchers placed fifteen capacitors, "and it's those capacitors that set the electromagnetic frequency of the structure, and can find the electric fields". Following this, uniform magnetic fields are generated and these permeate the room's interior.

The researchers at Disney have successfully come up with a methodology using the Quasistatic Cavity Resonance (QSCR) technology to provide wireless power at full coverage of a room the size of a standard living room. It involves bringing 1900 watts of energy that can charge with an efficiency rate of 40 to 95 percent.

There are a couple of issues, though.

There are certain conditions that need to be followed in order to achieve a room-scale wireless power delivery. Also, the circular nature of the magnetic field produced means receivers only work when at right angles to it, although this can be solved with three coils pointing in different directions. Firstly, so that the human body doesn't absorb harmful levels of energy, humans must remain at least 46 centimeters away from the copper pole.

Secondly, while around 100 watts of power can be transmitted into the room safely, there would need to be a significant amount of utility taking place.



Latest news

Cow escapes from slaughterhouse, leads police on chase
They had reportedly sedated the animal with darts, and were trying to get the slaughterhouse workers to come retrieve it. It was finally corralled and tranquilized in the backyard of a home at 115-43 158th St. around 12:30 p.m., police said.

CDC: Flu now 'widespread' in NC
But Moore said there's always a lag time in reported deaths, and he expects the number to be much higher by the end of flu season. Louis Morledge, an internist at Lenox Hill Hospital in New York City, agreed that it's still worthwhile to get a flu shot .

Azerbaijan strongman names wife to position
For the first time, the meeting was attended by Mehriban Aliyeva , appointed today the First Vice President of the Republic. Azerbaijan's opposition reacted furiously to Mr Aliyev's decision, saying family rule had no place in the 21st century.

Oil rises in thin trade, but swelling U.S. output caps rally
On the fundamental front, we got word that OPEC is looking to step up its compliance with the late-November supply cut accord. The report said the UAE has been the third most-valuable market for hydrocarbons projects, spending $35.1 billion.

Other news