DESIGN OF PORTABLE BLUETOOTH LOW ENERGY (BLE) BASED 6-LEAD ECG ACQUISITION DEVICE

• Main Author: Enrico Bramantya, Ignatius
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/65919
• Institution: Institut Teknologi Bandung

Cardiovascular Disease (CVD) is currently the highest death contributor due to Non-Communicable Diseases at 35% of total NCD deaths in Indonesia. The recent COVID-19 pandemic that hit Indonesia in early 2020 has shown that hospitals may overload bed capacity and risk contracting COVID. This situation drives most cardiovascular patients to rely on home care and possibly a telemedicine system that utilizes an online consultation method without meeting directly in person. The use of telemedicine as an alternative in monitoring cardiovascular disease patients drives the need for a portable electrocardiogram (ECG) device to provide heart activity-related data for patients and doctors. The device should be able to provide accurate results and transmit the data wirelessly to an external processing device that the user can access. In this paper, a portable Bluetooth Low Energy (BLE) based 6-Lead ECG acquisition device is designed and implemented to fulfill the need. The ECG acquisition device can transmit lead I, lead II, and heart rate data processed with a modified Pan-Tompkins-based algorithm to external devices in 20 bytes strings via BLE connection. The proposed ECG processing algorithm will feature R-wave peak detection with a modified Pan-Tompkins algorithm using exponential smoothing as LPF, fixed thresholding, and slope detection. The results show that the design of the ECG acquisition device produces proper 6-Lead ECG graphs with accurate heart rate measurements with a 0.1% mean absolute percentage error (MAPE) and 0.26% root mean square percentage error (RMSPE) compared to an ECG calibration device. The end product is also proven to be portable and wireless.