Location determination of mobile devices
AssigneeenLighted, Inc.
InventorWilliam Kerry Keal
Life of this patent
Estimating the term…
Abstract
There is described a location determining system comprising multiple mobile devices and multiple sensors at a facility as well as a sensor hub communicating directly or indirectly with the sensors. The sensors receive from the mobile devices broadcast beacons and identify measured times associated with receipt of the broadcast beacons from the mobile devices. The sensor hub stores the locations of sensors receives the measured times from the sensors. The sensor hub also determines sensor time errors based on the measured times, the locations of the sensors, and a transmission velocity associated with the broadcast beacons. The location determining system determines locations of the mobile devices based at least in part on the sensor time errors.
Claims18
A location determining system comprising:
- a plurality of mobile devices;
- a plurality of sensors having a plurality of locations at a facility, the plurality of sensors receiving a plurality of broadcast beacons from the plurality of mobile devices, the plurality of sensors identifying a plurality of measured times associated with receipt of the plurality of broadcast beacons;
- and
- a sensor hub communicating directly or indirectly with the plurality of sensors, the sensor hub storing the plurality of locations of the plurality of sensors, receiving the plurality of measured times from the plurality of sensors, and the sensor hub determining a plurality of sensor time errors based on the plurality of measured times, the plurality of locations of the plurality of sensors, and a transmission velocity associated with the plurality of broadcast beacons,
- wherein the sensor hub determines a particular sensor time error for each sensor of the plurality of sensors based on a particular measured time of the corresponding sensor, a particular location of the corresponding sensor, and the transmission velocity associated with the plurality of broadcast beacons.
A location determining system comprising:
- a plurality of mobile devices;
- a plurality of sensors having a plurality of locations at a facility, the plurality of sensors receiving a plurality of broadcast beacons from the plurality of mobile devices, the plurality of sensors identifying a plurality of measured times associated with receipt of the plurality of broadcast beacons;
- and
- a sensor hub communicating directly or indirectly with the plurality of sensors, the sensor hub storing the plurality of locations of the plurality of sensors, receiving the plurality of measured times from the plurality of sensors, and the sensor hub determining a plurality of sensor time errors based on the plurality of measured times, the plurality of locations of the plurality of sensors, and a transmission velocity associated with the plurality of broadcast beacons,
- wherein the sensor hub determines a plurality of locations corresponding to the plurality of mobile devices based at least in part on the plurality of sensor time errors.
A method for a location determining system comprising:
- storing, at a sensor hub, a plurality of locations of a plurality of sensors located at a facility;
- receiving, at the plurality of sensors, a plurality of broadcast beacons from a plurality of mobile devices;
- identifying, at the plurality of sensors, a plurality of measured times associated with receipt of the plurality of broadcast beacons by the plurality of sensors;
- receiving, at the sensor hub, the plurality of measured times from the plurality of sensors;
- and
- determining, at the sensor hub, a plurality of sensor time errors based on the plurality of measured times, the plurality of location of the plurality of sensors, and a transmission velocity associated with the plurality of broadcast beacons, wherein determining the plurality of sensor time errors includes determining a particular sensor time error for each sensor of the plurality of sensors based on a particular measured time of the corresponding sensor, a particular location of the corresponding sensor, and the transmission velocity associated with the plurality of broadcast beacons.
A method for a location determining system comprising:
- storing, at a sensor hub, a plurality of locations of a plurality of sensors located at a facility;
- receiving, at the plurality of sensors, a plurality of broadcast beacons from a plurality of mobile devices;
- identifying, at the plurality of sensors, a plurality of measured times associated with receipt of the plurality of broadcast beacons by the plurality of sensors;
- receiving, at the sensor hub, the plurality of measured times from the plurality of sensors;
- determining, at the sensor hub, a plurality of sensor time errors based on the plurality of measured times, the plurality of location of the plurality of sensors, and a transmission velocity associated with the plurality of broadcast beacons;
- and
- determining, at the sensor hub, a plurality of locations corresponding to the plurality of mobile devices based at least in part on the plurality of sensor time errors.
Dependencies are inferred from the claim text.