Research Article
WiBFall: A Device-Free Fall Detection Model for Bathroom
@INPROCEEDINGS{10.1007/978-3-030-94763-7_14, author={Pengsong Duan and Jingxin Li and Chenfei Jiao and Yangjie Cao and Jinsheng Kong}, title={WiBFall: A Device-Free Fall Detection Model for Bathroom}, proceedings={Mobile Networks and Management. 11th EAI International Conference, MONAMI 2021, Virtual Event, October 27-29, 2021, Proceedings}, proceedings_a={MONAMI}, year={2022}, month={1}, keywords={Fall detection Channel state information Deep neural network}, doi={10.1007/978-3-030-94763-7_14} }- Pengsong Duan
Jingxin Li
Chenfei Jiao
Yangjie Cao
Jinsheng Kong
Year: 2022
WiBFall: A Device-Free Fall Detection Model for Bathroom
MONAMI
Springer
DOI: 10.1007/978-3-030-94763-7_14
Abstract
Falling detection, especially for elderly people in confined areas such as bathrooms is vital for timely rescue. The mainstream vision-based fall detection approaches however are not applicable here for strong privacy concerns. It is therefore necessary to design a privacy-preserving fall detection model that utilizes other signals such as widely existed Wi-Fi for this scenario. Existing Wi-Fi based fall detection approaches often suffer from environment noise removal, resulting in moderate accuracy. In this paper, a Wi-Fi based fall detection model for bathroom environment, termed WiBFall, is proposed. Firstly, time series CSI data is reconstructed into a two-dimensional frequency energy map structure to obtain more feature capacity. Secondly, the reconstructed CSI data stream is filtered by Butterworth filter for noise elimination. Finally, the filtered data is used to train the established deep learning network to get a high accuracy fall detection model for bathroom. The experimental results show that the WiBFall not only reaches a fall detection accuracy of up to 99.63% in home bathroom environment, but also enjoys high robustness comparing to other schemes in different bathroom settings.
