Design and prototyping of an AI-powered wearable device for continuous vital signs monitoring with intelligent alerting

Sci Rep. 2025 Nov 23. doi: 10.1038/s41598-025-28772-2. Online ahead of print.

ABSTRACT

This work addresses the growing demand for affordable, wearable, and continuous health monitoring, particularly for patients, seniors, and athletes. It presents a wearable system for monitoring five vital signs: heart rate (HR), body temperature (T), blood oxygen saturation (SpO₂), blood pressure (BP), and respiratory rate (RR). All these parameters are measured using a single MAX30102 module without the need for a cuff or any additional sensors. Using advanced MATLAB signal processing, we have developed a random forest regression method, which, after simplification into a quadratic equation, estimates BP and RR with good accuracy. All recorded data are time-stamped and geotagged on a memory card, enabling patient history to support improved diagnostics. This compact, cost-effective device tracks vital signs and features intelligent alerts-audible alarms notify users of abnormalities. In critical situations, real-time vital signs and GPS coordinates are transmitted to the next of kin for emergency response. This combination of practical design and AI-powered analysis provides an effective solution for personal and clinical applications. Evaluation results demonstrate high accuracy: SpO₂ at 98.74 ± 0.99, T at 98.56 ± 0.48, HR at 95.47 ± 4.31, RR at 95.01 ± 0.96, and clinically acceptable BP estimates (systolic 94.20 ± 8.24, diastolic 92.68 ± 7.37).

PMID:41276515 | DOI:10.1038/s41598-025-28772-2