Method, apparatus, and systems for wireless event detection and monitoring

US10380881B2 · kind B2 · utility

Assignee

• ORIGIN WIRELESS, INC. · US

Inventors

• Qinyi Xu · Greenbelt, US
• Feng Zhang · Greenbelt, US
• Chen Chen · College Park, US
• Beibei Wang · Clarksville, US
• Zoltan Safar · Budapest, HU
• Yi Han · Greenbelt, US
• Hung-Quoc Duc Lai · Parkville, US
• K. J. Ray Liu · Potomac, US

Key dates

• Filing date: Dec 9, 2016
• Grant date: Aug 13, 2019
• Expiry date: Dec 9, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/12
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An apparatus for detecting events includes a processor and a storage device storing instructions that when executed by the processor cause the processor to train a classifier for classifying channel state information (CSI) and detecting an event based on the classification of the CSI obtained during a monitoring phase. The training of the classifier includes: for each of the known events to be detected, during a time period in which the known event occurs in a venue, obtain training CSI of a wireless multipath channel between a wireless transmitter and a wireless receiver in the venue, in which the training CSI is derived from one or more probing signals sent from the transmitter through the wireless multipath channel to the receiver, and train the classifier based on the known events and the training CSI associated with each of the events.