Metody měření tepové frekvence pro integraci do ortotických a protetických pomůcek

Abstract

This thesis deals with heart rate measurement methods intended for integration into orthotic and prosthetic devices. The aim of the thesis was to verify the possibility of measuring heart rate through an intermediate silicone layer and to compare optical and capacitive measurement principles under the same experimental conditions. Three measurement modules based on ADPD1080, FDC1004, and AD7745 were designed and implemented, together with separate firmware for each module and a unified user application for device configuration, data recording, and data evaluation. Experimental measurements were carried out on 10 adult volunteers in the thigh area through a 4 mm thick silicone layer. In the given arrangement, the capacitive modules based on FDC1004 and AD7745 did not allow reliable heart rate estimation. The best results were achieved with the optical module based on ADPD1080, which was the only one to provide a signal of sufficient quality for validation against the reference measurement. Based on the obtained results, the optical principle was selected for further development of a sensor intended for integration into orthotic and prosthetic devices.