Disney Researchers Designed Wireless Charging Room

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Disney Research, a member of the Walt Disney company, come up with an original solution for charging – designing the room that can wirelessly charge 10 objects at a time. We all know that currently wherever we want to charge our devices we need ports and chargers. On this way, they want to avoid the whole bunch of wires and ports hidden in every corner of any room.

                  Wireless charging room set-up. Image credit: Disney research

Wireless power is not an innovative idea. It comes from Serbian inventor Nikola Tesla ( 19th century ). He was the most famous proponent of such a power, but the time when he lived, was too limited for his wireless imagination. And still scientists for years struggles to find the best wireless solution to power up devices, such as MIT device that use a magnetic field to charge it or development by electronics company Energous of WattUp router that connects to devices via Bluetooth and beams power at them over a 5.7 to 5.8 GHz range.

It seems that team from Disney Research goes step further in this area. As all previous solution has the limitation of near-contact distances without geometric freedom for charging, they created the prototype of the living room that can deliver around 1,900 watts of energy with 40 to 95% of efficiency. How they achieved this? The build room was lined with aluminum panels and in its center was a copper pipe with installed 15 capacitors that are connected to a generator installed outside the room.

Quasistatic Cavity Resonance for Ubiquitous Wireless Power Transfer
Matthew J. Chabalko Mohsen Shahmohammadi Alanson P. Sample

This technology called quasistatic cavity resonance (QSCR) is able to provide the dicent amount of energy enough to charge phones, drones, lamps and similar small electronic devices. On the other side, this solution has some issues. Although it is mostly safe for use, yet researchers warns that people shouldn’t stand closer than 46 centimeters to the pole. This means that probably will be needed to develop some kind of sensor which would measure the safe distance. Then the circular nature of the magnetic field produced means receivers only work when at right angles to it. The comforting is that there are already ideas to overcome these setbacks.

Disney Research demonstrated their technology. Current limitation prevents this technique to be on market yet. Still, the team believes after improvement that QSCR can be applied to a wide variety of usage scenarios from small charging cabinets, to large-scale warehouses potentially using multiple poles.

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Mark Masters
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Tesla..100 years ago…

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