Patent ID: 11875659
Assignee: GOOGLE LLC
Field: Measurement (Instruments)
Classification: CPC G  A | IPC G

Claim 16:
17. A method for performing fall detection, the method comprising:
positioning a home assistant device with a room such that the home assistant device is intended to remain stationary, wherein the home assistant device comprises:
a speaker;
a microphone; and
a monolithic radar integrated circuit that comprises an antenna array for receiving reflected radar;

transmitting, by the home assistant device, radar waves within the room;
based on reflected radar waves within the room, creating raw waveform data;
filtering, from the raw waveform data, waveform data indicative of static objects to obtain motion-indicative waveform data;
performing center-of-mass tracking on a moving object present within the motion-indicative waveform data;
classifying the moving object based on the center-of-mass tracking using a pre-trained machine learning model;
determining that a fall by a person has occurred based on classifying the moving object; and
outputting, by the home assistant device, speech announcing that the fall has been detected via the speaker of the home assistant device.