Heart Rate and Motion Detection on Swimmers Simultaneous monitoring of heart rate and motion of swimmers
2014
The use of pulse oximetry in measuring heart rates is well established. In this
project the technique is applied in conjunction with a simple FFT (Fast Fourier
Transform) treatment to the measuring of heart rates on swimmers using the
MORES sensor developed by CiS Forschungsinstitut fur Mikrosensorik und Photovoltaik
GmbH in Erfurt. Movement data is collected from an IMU (Inertial Measurement
Unit) and fused using a complementary filter. It is found that due to the
high noise ratio, poor performance of supporting hardware and immaturity of the
oximetry sensor that the heart rate measurement gave unsatisfactory results. The
IMU gives the expected data and the fusing algorithms perform as intended. Integration
of accelerometer data for the acquisition of velocity and position is proven
not to work.
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