System and method for situational awareness
US9860679B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2012 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/027
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for determining the location of a person relative to a vehicle. In one embodiment, the system includes a first device comprising a first Bluetooth transceiver in the vehicle, a portable second device comprising a second Bluetooth transceiver and a first application program. The first application program identifies a first condition in which a link based on Bluetooth RF transmission exists between the first device and the second device when the person is in a first position close to or in the vehicle. The application program determines when the link is broken based on drop in signal level and provides notification through a network to a computer system when a determination is made that the link is broken. The notification is indicative of the person having moved farther away from the vehicle to a second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.