Researchers at the University of California, San Diego, in their latest study, have developed a new Wi-Fi chip that can be used up to three times less energy than IoT devices.
News i reports quoting single explorerChanging the battery of a security camera or charging a smart speaker monthly is not a difficult task, but if there are multiple devices at home, maintenance will be difficult and more energy consuming. But now, thanks to IoT researchers, they no longer need separate power supplies, repeated charging, or large batteries.
The Internet of Things or IoT, or sometimes the “Internet of Things”, also refers to many things, including the objects and environments around us that are connected to the Internet and They can be controlled and managed by apps on smartphones and tablets. The Internet of Things is, in simple terms, the connection of sensors and devices to a network through which they can interact with each other and with their users. This concept can be as simple as connecting a smartphone to a television or the complexity of monitoring urban infrastructure and traffic.
University of California, San Diego, electrical engineers have recently developed a new low-power Wi-Fi radio that is integrated into a small chip for IoT devices. Although very small and about the same size as rice grains, it has a very high energy efficiency.
The chip consumes only 2 MW of power, which is 2 times less than standard Wi-Fi radios. At the same time, the chip can transmit data up to 2 meters at a speed of 2 Mbps.
This invention is based on a technique called backscattering. The transmitter does not generate its own signal, but receives signals from nearby devices (such as a smartphone) or Wi-Fi hotspot, and after receiving, modifies the signals and encrypts its data on them and then overwrites the new signals. Reflects on other Wi-Fi channels or other devices.
This approach requires much less energy and gives the electronics manufacturers much more flexibility to produce. With the tiny Wi-Fi chip, Internet of Things devices no longer need to be recharged and recharge large batteries, but enable smart home devices to work wirelessly and even without batteries in some cases.
The findings of this study will be presented at the International Conference “ISSCC در” in San Francisco.
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