公开(公告)号：US11796637B1

公开(公告)日：2023-10-24

申请号：US17016746

申请日：2020-09-10

Applicant: Amazon Technologies, Inc.

Inventor： Kandarp Shah ,  Jayashree Subramanian ,  Pratik Kalpesh Patel ,  Srinath Byregowda ,  James J Wolfe

IPC: G01S7/41 ,  G01S13/42 ,  G06T7/246 ,  G06T7/60

CPC classification number: G01S7/415 ,  G01S7/412 ,  G01S13/42 ,  G06T7/246 ,  G06T7/60 ,  G06T2207/10028 ,  G06T2207/10044 ,  G06T2207/20081 ,  G06T2207/30196

Abstract: Systems and methods for fall detection on uneven surfaces utilizing radar are disclosed. For example, an electronic device may receive reflected energy from surfaces in an environment. Corresponding sensor data associated with an object moving on an uneven surface may be utilized to determine a velocity of the object and a height change of the object. When the velocity indicates that the object has stopped moving toward or away from the sensing device, and the height values indicate a sudden decrease in height, a fall event may be detected.