Smart WiFi Mmwave Radar Human Presence Sensor with Ambient Light Detection for Automated Smart Home Security

The sensor continuously emits non-ionizing 60GHz radio waves that bounce off objects in the room. When a person falls, the radar tracks changes in the target's height profile, trajectory, and speed of motion relative to the floor. By recognizing the physical signature of a fall followed by immobility, it generates an alert purely based on spatial radar reflections without taking video or images.

Yes, unlike conventional PIR sensors that lose track of motionless people, mmWave radar is sensitive enough to detect microscopic chest movements caused by breathing. It accurately registers a static human presence even when the individual is sleeping, reading, or sitting still.

High-frequency 60GHz radar algorithms are tuned to filter out environmental noise such as moving curtains, air conditioning airflow, or small pets. The detection model requires a specific mass threshold and spatial trajectory pattern corresponding to human movement to trigger a fall event, significantly reducing false positive rates.

For accurate fall detection, the radar sensor is typically installed on a wall or ceiling at a recommended height specified in the installation guidelines, with an unobstructed view of the primary monitoring area. Avoid placing the sensor directly behind solid metal objects or thick concrete barriers, as radio signals cannot penetrate dense metallic shielding.