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Wi-Fi Could Help Identify When You're Struggling to Breathe

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Jason Coder (at right) sets up an experiment in an anechoic chamber to use Wi-Fi to sense breathing.

Working with colleagues at the Office of Science and Engineering Labs (OSEL) in the FDA’s Center for Devices and Radiological Health, researchers advanced a way to use Wi-Fi routers to measure the breathing rate of a person in the room.

Credit: R. Jacobson/NIST

Researchers led by U.S. National Institute of Standards and Technology scientists developed the BreatheSmart algorithm to analyze a person's movements and determine whether they have difficulty breathing via Wi-Fi routers and devices.

The researchers tweaked the firmware on a Wi-Fi router to request channel state information (CSI) up to 10 times per second to receive a detailed picture of how such data was changing.

The researchers had a medical training manikin mimic various breathing conditions, its chest movements altering the path traveled by the Wi-Fi signal.

The BreatheSmart algorithm applied deep learning to process this data, and classified respiratory patterns simulated by the manikin with 99.54% accuracy.

From U.S. National Institute of Standards and Technology
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Abstracts Copyright © 2022 SmithBucklin, Washington, DC, USA


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