Development of the BCG feature extraction methods for unconstrained heart monitoring

Lately, Advancement in wireless technology and biomedical sensor nodes provide a good platform for ubiquitous healthcare development. In this paper, we propose a brand new concept for ballistorcardiogram(BCG) monitoring system which is implementing wireless sensor node to transmit BCG signal to a base station in hospital for long term monitoring and easy BCG analysis purpose. We design a chair type BCG unconstrained measurement system giving a great convenience for BCG daily life monitoring. Never the less, this monitoring system can be take place either at home, at office or anywhere since the system is designed as a chair type and not restricted to hard wired connection. In addition, signal processing algorithm using wavelet transform for noise elimination, adaptive threshold method for high R-peak detection accuracy is presented in this paper.