WIFI-Based Robust Child Presence Detection for Smart Cars

Sakila S. Jayaweera, Beibei Wang, Xiaolu Zeng, Wei Hsiang Wang, K. J. Ray Liu

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

In-car child presence detection (CPD) has gained worldwide attention due to increased child deaths reported yearly when they are left unattended in a car. Existing solutions usually require dedicated sensors and are being surpassed by WiFi-based CPD because the latter can provide broader coverage and can reuse the in-car WiFi devices. However, the existing WiFi-based CPD solutions are not robust and may suffer from miss detection due to the very weak breathing of a young child and high false alarms under unfavorable environmental conditions. In this paper, we propose a WiFi-based robust CPD system consisting of a motion and breathing detector. To improve breathing detection, we propose to treat the intermediate spectrogram for breathing estimation as images and apply image enhancement techniques followed by effective false alarm removal. Extensive experimental results have confirmed the robustness of the proposed system with a 99% detection accuracy and 3% false alarm rate.

Original languageEnglish
JournalProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event48th IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2023 - Rhodes Island, Greece
Duration: 4 Jun 202310 Jun 2023

Keywords

  • WiFi sensing
  • channel state information (CSI)
  • child presence detection (CPD)

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