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EchoSensor: Fine-grained Ultrasonic Sensing for Smart Home Intrusion Detection

Published: 19 October 2023 Publication History

Abstract

This article presents the design and implementation of a novel intrusion detection system, called EchoSensor, which leverages speakers and microphones in smart home devices to capture human gait patterns for individual identification. EchoSensor harnesses the speaker to send inaudible acoustic signals (around 20�kHz) and utilizes the microphone to capture the reflected signals. As the reflected signals have unique variations in the Doppler shift respective to the gaits of different people, EchoSensor is able to profile human gait patterns from the generated spectrograms. To mine the gait information, we first propose a two-stage interference cancellation scheme to remove the background noise and environmental interference, followed by a new method to detect the starting point of walking and estimate the gait cycle time. We then perform the fine-grained analysis of the spectrograms to extract a series of features. In the end, machine learning is employed to construct an identifier for individual recognition. We implement the EchoSensor system and deploy it under different household environments to conduct intrusion detection tasks. Extensive experimental results have demonstrated that EchoSensor can achieve the averaged Intruder Gait Detection Rate (IDR) and True Family Member Gait Detection Rate (TFR) of 92.7% and 91.9%, respectively.

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Cited By

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  • (2024)RDGait: A mmWave Based Gait User Recognition System for Complex Indoor Environments Using Single-chip RadarProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36785528:3(1-31)Online publication date: 9-Sep-2024
  • (2024)RoFi: Robust WiFi Intrusion Detection via Distribution MatchingICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)10.1109/ICASSP48485.2024.10446917(166-170)Online publication date: 14-Apr-2024
  • (2023)Training-Free Acoustic-Based Hand Gesture Tracking on Smart SpeakersApplied Sciences10.3390/app13211195413:21(11954)Online publication date: 1-Nov-2023

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  1. EchoSensor: Fine-grained Ultrasonic Sensing for Smart Home Intrusion Detection

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    Published In

    cover image ACM Transactions on Sensor Networks
    ACM Transactions on Sensor Networks  Volume 20, Issue 1
    January 2024
    717 pages
    EISSN:1550-4867
    DOI:10.1145/3618078
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    Association for Computing Machinery

    New York, NY, United States

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    Publication History

    Published: 19 October 2023
    Online AM: 12 August 2023
    Accepted: 25 July 2023
    Revised: 14 January 2023
    Received: 17 February 2022
    Published in�TOSN�Volume 20, Issue 1

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    Author Tags

    1. Ultrasonic sensing
    2. smart home
    3. intrusion detection
    4. individual identification

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    • (2024)RDGait: A mmWave Based Gait User Recognition System for Complex Indoor Environments Using Single-chip RadarProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36785528:3(1-31)Online publication date: 9-Sep-2024
    • (2024)RoFi: Robust WiFi Intrusion Detection via Distribution MatchingICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)10.1109/ICASSP48485.2024.10446917(166-170)Online publication date: 14-Apr-2024
    • (2023)Training-Free Acoustic-Based Hand Gesture Tracking on Smart SpeakersApplied Sciences10.3390/app13211195413:21(11954)Online publication date: 1-Nov-2023

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