Detecting a location of motion using wireless signals and topologies of wireless connectivity
US11006245B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | May 5, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a general aspect, a method is presented for detecting a location of motion using wireless signals and topologies of wireless connectivity. The method includes obtaining motion-sensing data from access point (AP) nodes of a wireless mesh network. The motion-sensing data is based on wireless signals transmitted between respective pairs of the AP nodes. The method additionally includes identifying a motion-sensing topology of the wireless mesh network. The motion-sensing topology is based on tags assigned to respective AP nodes, each tag indicating a connected state of a respective AP node. The method further includes generating a probability vector based on the motion-sensing data and the motion-sensing topology. The probability vector includes values that represent probabilities of motion of an object at respective AP nodes. A location of the motion of the object is determined based on the probability vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.