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Non-intrusive Monitoring of Heart Rate by an Office Chair Instrumentated with Optical Fiber Sensors

IEEE Portuguese Meeting on Bioengineering(2023)

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摘要
The continuous monitoring of vital signals is crucial in the diagnosis of cardiovascular diseases. With the focus on a continuous and non-intrusive acquisition of ballistocardiographic signal, a mobile seat instrumentalized with optical fiber sensors based on fiber Bragg gratings (FBGs) is proposed. The development of a six-sensor network will allow the study of the feasibility of their positioning to aim a greater efficiency. To calculate the heart rate, a time domain algorithm was developed based on the determination of the period between J-peaks of the ballistocardiograph. This model was tested on ten volunteers, in a sitting position, with data acquisitions carried out in periods of three minutes. To evaluate its performance, the results were compared with a wearable reference system, obtaining an accuracy greater than 95% for the majority of the participants, thus verifying that the developed system overcame the proposed objective.
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关键词
Ballistocardiograph,heart rate,non-intrusive monitorization,fiber Bragg grating sensors
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