God declared, "Let there be light," and the world was illuminated. But in our modern lives, when our phones die, or the power goes out in the neighborhood, even shouting "Want! Have! Electricity!" won’t bring it back. No power means no internet, and that’s a real problem.
Life is tough enough without being disconnected. To extend battery life, manufacturers have only two options: open-source solutions or energy-saving modes. But what if there was a way to connect to the internet without any battery at all?
The University of Washington has developed a groundbreaking communication method that uses wireless signals from radios, TVs, and even Wi-Fi as a power source. This new batteryless Wi-Fi device can connect to the internet without needing a battery, opening up exciting possibilities for the future.
We’re all familiar with the concept of the Internet of Things (IoT). For this vision to become reality, we need a unified and efficient communication standard—something low-cost and high-performance. The technology developed by the University of Washington could be a game-changer in making IoT more accessible and practical.
In the past, researchers have created small devices that use ambient radio waves to power themselves. Some of these devices can transmit data wirelessly, like RFID chips on bus cards. However, these require special readers to connect to the internet, which limits their integration with existing networks.
The new device from the University of Washington solves these limitations. It uses just one antenna and one circuit to enable zero-energy Wi-Fi connectivity on smartphones and computers. By harnessing RF signals from TV, radio, Wi-Fi, and mobile networks, the device converts them into usable electricity. Once powered, it can connect to your computer, phone, or other devices seamlessly.
Currently, the device works within a 2-meter range and has a data transfer speed of 1 KB per second. Researchers are already working on expanding its range to 20 meters and plan to apply for a patent soon.
This innovation brings the Internet of Things closer to reality by reducing the reliance of connected devices on batteries. In some cases, devices may even be able to function without any battery at all. Imagine adding this technology to everyday objects like sofas, cabinets, or smart appliances, allowing for more precise home monitoring and control.
Additionally, this could revolutionize wearable tech, such as smartwatches, by eliminating the need for frequent charging. With this breakthrough, staying connected is no longer about having a charged battery—it's about being always online, effortlessly and sustainably.
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