Patent · US Active

Method of processing ambient radio frequency data for activity recognition

US11077826B2 · kind B2 · utility

1Cited by

2References

10Claims

0Family size

Assignee

CARRIER CORPORATION · US

Inventors

Junyang Lin · Shanghai, CN
Zhen Jia · Shanghai, CN
Jie Xi · Shanghai, CN
Tianyuan Chen · Shanghai, CN
Yuanjing Sun · Shanghai, CN

Key dates

Filing date	Jan 10, 2020
Grant date	Aug 3, 2021
Priority date	—
Expiry date	Jan 10, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of operating an activity recognition system includes capturing ambient radio frequency (RF) data by an RF sniffer. The ambient RF data is then received by a processor. The processor reduces noise content of the ambient RF data. Background is then subtracted from the ambient RF data by the processor. The processed ambient RF data is then converted into an image by the processor. The system generates successive images for each one of a plurality of time intervals. An image processing algorithm, stored in a storage medium and executed by the processor, is applied to the plurality of successive images to determine activity recognition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.