WiFi-based Real-time Breathing and Heart Rate Monitoring during Sleep
It provides a low-cost, contactless solution for continuous vital signs monitoring during sleep, which could benefit health monitoring applications, though it appears incremental as it builds on existing WiFi sensing methods.
This paper tackled the problem of non-invasive sleep monitoring by developing a WiFi-based system to detect breathing and heart rates in real-time, achieving accurate performance as indicated by experimental results.
Good quality sleep is essential for good health and sleep monitoring becomes a vital research topic. This paper provides a low cost, continuous and contactless WiFi-based vital signs (breathing and heart rate) monitoring method. In particular, we set up the antennas based on Fresnel diffraction model and signal propagation theory, which enhances the detection of weak breathing/heartbeat motion. We implement a prototype system using the off-shelf devices and a real-time processing system to monitor vital signs in real time. The experimental results indicate the accurate breathing rate and heart rate detection performance. To the best of our knowledge, this is the first work to use a pair of WiFi devices and omnidirectional antennas to achieve real-time individual breathing rate and heart rate monitoring in different sleeping postures.