Wireless Battery-Free Flexible Sensing System for Continuous Wearable Health Monitoring

With the spread of infectious diseases around the world, health monitoring is gaining importance as a key technology for disease prevention. Contact health monitoring inevitably causes a potential for disease transmission between patient and physician. Hence, the research on contactless health monitoring between patients and medical workers leads to increased attention. Current systems provide various wireless monitoring solutions, but two dilemmas need to be solved urgently. The first is replacing the rigid substrate with an all-flexible structure. The second is the ability to wireless multiple parameters detecting. Herein we propose a wireless battery-free flexible sensing system for continuous and contactless wearable health monitoring. The system consists of three sensing modules integrated with inductance-capacitance resonators for monitoring temperature, humidity, and pressure while the sensitivity reaches 710.1 kHz %RH-1, 19.2 kHz Pa-1, and 630.1 kHz degrees C-1, respectively. All-flexible structure satisfies the wearable requirements for contactless health monitoring. The continuous monitoring of daily activities demonstrates the potential of the wireless battery-free sensing system for obtaining physiological status in epidemic prevention and control.

Automated summary

With the global spread of infectious diseases, health monitoring has become increasingly important for disease prevention. Contact health monitoring presents a risk of disease transmission between patients and medical workers, leading to increased attention on contactless health monitoring. The current challenge lies in solving the need for a flexible structure and the ability to detect multiple parameters wirelessly. Therefore, we propose a wireless battery-free flexible sensing system for continuous and contactless wearable health monitoring. The system consists of three sensing modules integrated with inductance-capacitance resonators for monitoring temperature, humidity, and pressure. The all-flexible structure meets the requirements for contactless health monitoring and the system shows potential in obtaining physiological status for epidemic prevention and control.