System and method for situational awareness

摘要

A method for determining location of a person relative to a vehicle. A first device comprising a Bluetooth transceiver is associated with the person, and a second device comprising a Bluetooth transceiver is associated with the vehicle. The method includes determining whether the strength of a signal received by one device from the other device via has diminished below a predetermined level, in which case a notification is provided to a computer system via wireless data communication that the status has changed from a first link status wherein the first device is within a predeterminable distance from the second device to a second link status wherein the first device is beyond the predeterminable distance from the second device.

主权项

1. A method of determining the location of a person relative to a vehicle, comprising:
associating a first device comprising a Bluetooth transceiver with the person by providing identification of the person to a computer system through a log-in process performed on the first device; associating a second device comprising a Bluetooth transceiver with the vehicle; detecting a Bluetooth radio link between the first and second transceivers, wherein the link is indicative of a status, based on measured rf signal strength, as to whether the first device is within a predeterminable distance from the second device; determining whether the rf signal strength of a signal received by one device from the other device via the Bluetooth radio link has diminished below a predetermined level; and if the rf signal strength of the signal received by the one device from the other device via the Bluetooth radio link has diminished below a predetermined level, providing a notification to a computer system via wireless data communication, that status has changed from a first link status wherein the first device is within a predeterminable distance from the second device to a second link status wherein the first device is beyond the predeterminable distance from the second device.