This paper presents a smart cushion for real time heart rate monitoring. The cushion comprises of an integrated micro-bending fiber sensor, which records the BCG (Ballistocardiogram) signal without direct skin-electrode contact, and an optical transceiver that does signal amplification, digitization, and pre-filtering. To remove the artifacts and extract heart rate from BCG signal, a computationally efficient heart rate detection algorithm is developed. The system doesn't require any pre-training and is highly responsive with the outputs updated every 3 sec and initial response within first 10 sec. Tests conducted on human subjects show the detected heart rate closely matches the one from a commercial SpO2 device.
@article{arxiv.1409.8021,
title = {A Smart Cushion for Real-Time Heart Rate Monitoring},
author = {Chacko John Deepu and Zhihao Chen and Ju Teng Teo and Soon Huat Ng and Xiefeng Yang and Yong Lian},
journal= {arXiv preprint arXiv:1409.8021},
year = {2014}
}
Comments
2012 IEEE Biomedical Circuits and Systems Conference