Design and performance evaluation of a dynamic wearable ECG system based on the MC-DST method

This study presents a wearable electrocardiogram (ECG) monitoring system equipped with silver fiber fabric electrodes whose contact impedance is below 10 Ω. Adopting STM32F411RCT6 and ADS1292 chips, the system realizes 24-hour continuous operation via Bluetooth 5.0 and 64 GB SD card. A hybrid Morphological Contour-Dual Slope Threshold (MC-DST) algorithm is proposed to eliminate baseline drift and improve R-peak detection. Tests verify that the system well suppresses motion artifacts, achieving an R-peak detection accuracy of 99.38% and a sensitivity of 99.52% in dynamic monitoring scenarios.