Heart rate measurement through PPG: Heartbeat measurement in a wireless headset

This thesis, assigned by Plantronics, proposes a solution to the motion artifacts that corrupt the results of PPG (Photo Plethysmo Graphic) signals and therefore the determined heart rate during physical exercises. An Infra-Red light emitting diode and phototransistor package was used to create a PPG signal that was amplified using an...

Temperature based heart rate detection: Heartbeat measurement in a headset

This thesis, assigned by Plantronics®, contains the implementation of a temperature based heart rate sensor as an alternative to established sensing methods. This is realised by the use of 0402 package NTC thermistors in a bridge configuration. The data acquisition is done by the use of a National Instruments USB-6210 data acquisition module....

Colour based heart rate detection: Heartbeat measurements in wireless music headsets

In this thesis, assigned by Plantronics®, the analysis and implementation of a colour based heart rate sensor will be discussed, which can be integrated in a sports headset. Two implementations are discussed: an RGB (Red, Green and Blue) sensor and a Light Dependent Resistor (LDR). The former setup identifies colour variations while the latter...