Synchronized Vibration Data Acquisition for Seismocardiography

Abstract

Seismocardiography (SCG) is a non-invasive technique that detects the heart’s vibrations to evaluate its mechanical activity. This research presents the design of a SCG device that utilizes a sensor fusion algorithm accurate detection of heart vibrations. The hardware comprises a main board with a high-performance microcontroller and multiple satellite boards, each equipped with MEMS sensors. The system’s signal analysis involves a correlation-based sensor fusion algorithm for noise reduction. Preliminary results demonstrate the system’s efficacy in reducing noise and cleaning the acquired signal. The study concludes with the benefits of the described SCG system when compared to single-sensor setups. As a future step we will work on systems with an increased number of sensors for simultaneous and precise detection of various heart sounds.