A multi-user wearable waistband system for real-time health monitoring of respiration, ECG, and body temperature

Wearable health monitoring systems have gained significant attention for real-time physiological signal tracking, particularly in elderly care settings where continuous, non-invasive monitoring is critical. Current systems, however, face limitations in multi-signal integration, user comfort, and practicality for long-term use. Existing approaches often rely on separate devices for measuring vital signs, leading to cumbersome setups and restricted mobility. Additionally, few solutions support simultaneous multi-user monitoring, hindering scalability in group care environments like nursing homes. In this study, we present a highly integrated waistband device that addresses these gaps by concurrently measuring respiration, electrocardiogram (ECG), and body temperature. The respiratory sensor employs a resistive pressure sensor. Its alignment with the ECG electrodes and the temperature sensor eliminates the need for auxiliary respiratory devices (e.g., masks) and enhances wearability. With the integration of a Bluetooth transmission circuit system, this real-time health monitoring system enables long-term stable testing for multiple users. A 24-h synchronized test involving 10 participants was conducted, demonstrating effective health monitoring capabilities and the potential to identify underlying health issues. This innovation provides a scalable, comfortable solution for intelligent healthcare systems, demonstrating practical value in elderly care applications.