Real-time Respiration Sensing with Pervasive GPS Signals

The past decade has witnessed a surge of interest in human respiration sensing with various wireless signals to achieve at-home smart health. While promising in many aspects, two critical limitations still exist: a) dedicated sensing signal transmitters are needed; b) existing sensing schemes affect the original function of the wireless technology such as communication. In this demo, we present the GPSense Respiration system, a new kind of contact-free respiration sensing system that breaks the above limitations. GPSense Respiration operates by receiving and analyzing the GNSS signals reflected by the human body without additional pre-deployed signal transmitters. Also, GPSense Respiration system will not affect wireless communications because GNSS signals operate at different frequencies than communication signals. This demo enables respiration monitoring for different users in real-time without any calibration.