A group of Researchers in Singapore has developed a technology that would allow the human body to act as a bridge to transfer charge between gadgets with the help of wireless power transmission. In this way, the smartphone in a person’s pocket could transfer power and charge a wearable worn by the same user.
This study was conducted by a team of researchers from the National University of Singapore’s (NUS) Department of Electrical and Computer Engineering and they claim to have developed this unique technology to originally addressing the body-shadowing issues faced by wireless charging systems in a small space.
The NUS team designed a system with a receiver and a transmitter on the human body which also contains a chip that works as a router to extend the range over the entire body. This will be one complete unit. When the user place the transmitter on a single power source say for example a smartwatch that is tied to their wrist, the system will be able to transmit the charge developed by the smartwatch (source) and charge multiple wearables on the body of the user. This process is named body-coupled power transmission. The advantage of the system is that the user needs only charge one device which will then power the other gadgets simultaneously in his possession.
Body shadowing is a phenomenon caused by the blocking presence of the human body that results in amplified loss of indoor wireless systems connectivity. The technology common today fail to deliver enough charge that could power the gadgets worn on the human body. The researchers point to a study published in the journal of Nature Electronics and says that they tried to harvest and transmit power from the human body instead of trying to divert the charge around it.
In addition to trying to harness the electromagnetic waves to which humans are exposed on a daily basis, the NUS team is also pondering over ways to extract energy from the environment. The method proposed by the team succeeds to charge the electronic device irrespective of the location of the device on the human body. If all things go well, you could see users charging their devices by simply attaching them to their body and avoid the whole brick and cable fiasco.
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