Personal locator beacon system
US9494674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2015 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A personal locator beacon system including at least one individual locator device and a plurality of battery powered wireless beacons installed at different locations within a facility. Each individual locator device is worn by a corresponding individual and has a local wireless transceiver and a GPS receiver. The plurality of beacons include at least a subset of reed switch beacons installed at different doorway locations within the facility. Each reed switch beacon is configured to transmit an identification signal with a predetermined signal strength for reception by the local wireless transceiver of the individual locator device within a designated area of the facility, as well as to selectively acquire a perimeter mode for detecting opening of a respective door of the facility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.