Disney Researchers have created a fully connected room that is capable of charging up to 320 devices. All you need to do is simply walk into the room with your smart device. Using a wireless power transmission method called Quasistatic Cavity Resonance (QSCR), Disney is giving the world untethered wireless freedom by building a 16’ x 16’ room with aluminum walls, ceilings, and floors.
The Disney Research
According to a recent New Atlas article entitled, “Disney Research Turns a Whole Room into a Wireless Charger,” scientists may have solved the two biggest obstacles facing wireless charging innovation: range and safety. Consumer technology products are known for their wireless transmission tech, but that usually requires a charging dock or some sort of Bluetooth connectivity. Disney has created a way to for someone to walk into a room with a dead smartphone battery and leave with it fully charged.
Disney Research Scientists, led by Associate Lab Director and Principal Research Scientist Alanson Sample who turned to the QSCR method while building the metallic room said, “This new innovative method will make it possible for electrical power to become as ubiquitous as Wi-Fi. It could enable new applications for robots and other small mobile devices by eliminating the need to replace batteries and wires for charging.”
Quasistatic Cavity Resonance (QSCR)
Here is how the wireless technology works inside Disney’s aluminum room:
A copper pole with discrete capacitors is strategically placed in the center of the room.
A signal generator outside the room produces a 1.32 MHz tone.
A coil receiver connects to this signal and the corresponding capacitors.
This system enables power to be transmitted to receiving coils.
According to Disney Research, “The capacitors set the electromagnetic frequency of the structure and confine the electric fields, isolating the potentially harmful electric field at the same time.” In other words, some of the dangers that usually come with concentrated electrical power are isolated inside the copper pole. As long as people keep their distance from the copper pole (46 cm), then they’re safe. According to Atlas, “once QSCR tech is optimized, building owners will have to retrofit existing structures via modular panels or conductive paint, and in the case of larger spaces, insert multiple copper poles.”
Real World Application
By using the groundbreaking QSCR method to generate wireless power transmission, the need for electrical cords and charging ports will eventually become a thing of the past. Disney Researchers solved the wireless range problem by designing three orthogonal coils capable of receiving power regardless of location. With safety being a major concern, electrical fields will be hidden behind modular panels or conductive paint – maintaining a barrier between the passerby and the copper pole. Finally, power limits are clearly defined to ensure proper kilowatt transmission per wireless room.
“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,” Sample concludes.