An IOT sensor was presented to detect human motionvital signs with Wi-Fi signals. It mainly combines MIMO beamforming, injection-locking radarmachine learning techniques to recognizetrack physicalphysiological activities for health status monitoring. As a proof of concept for pandemic prevention, the presented sensor aims to inspect whether someone is exhibiting signssymptoms of COVID-19 infection within the Wi-Fi coverage area, such as fatigue, cough, shortness of breathirregular heart rhythm,even to detect sudden death.

"On site EEWS system could detect very minor seismic P wavepredict upcoming earthquake intensitygive advanced warning to high precision manufacturerIOT devices to enable service like vocallighting warning system for early escape, gas auto shut down, elevator stop system. Structural safety monitor system could give you a flash assessment report for you to take earliersafer next step."