Researchers in Singapore said they have found a way to charge the gadgets worn by people by tapping on the human body as a medium for wireless power transmission. They say that their technology draws energy from a source, such as a cell phone placed in a person’s pocket, and then transfers it to other gadgets worn by the person. The team from the Department of Electrical and Computer Engineering of the National University of Singapore (NUS) stated that they developed this technology to solve the problem of body shadows encountered by wireless charging systems in small indoor areas.

In the system developed by the NUS team, each receiver and transmitter on the human body contains a chip that serves as a springboard to expand the coverage of the entire body. The user needs to put the transmitter on a single power source, such as a smart watch on the wrist, and the system uses the energy from the power source to charge multiple wearable devices through a process called body-coupled power transmission. The user only needs to charge one device, and then the device will simultaneously power the rest of the gadgets they wear from that single source.

Body shadows caused by human body occlusion will increase the path loss in indoor wireless systems. The researchers stated in a study published in the journal Nature Electronics that currently available methods cannot provide sustainable electricity to charge human wearable devices. Pipes that collect and transmit electricity.

Researchers have also studied ways to obtain energy from the environment. In a typical office or home environment, people are exposed to electromagnetic waves most of the time, such as from a running laptop or other such equipment. The team’s method allows the body to collect this energy to power wearable devices regardless of their location on the human body.

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This may mean that one day you only need to wear your watch to charge your watch, instead of having to separately power all the gadgets you carry with you.


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