importantSYS.SOURCE: IMWUT• 2026-05-06T17:13:54Z

SoundOff: Low-Cost Passive Ultrasound Tags for Non-invasive Smart Home Sensing

#ultrasound sensing #smart home #passive sensing #iot #sound classification

The SoundOff system proposes deploying ultra-low-cost, passive ultrasound tags in indoor environments (like door knobs and windows) that emit unique signals when moved, enabling non-intrusive smart home sensing. The research demonstrates that these ultrasound emissions are robust and distinguishable, allowing for systematic generation and classification for custom automation systems.

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