Bluetooth device locator
AssigneeHewlett Packard Enterprise Development LP
InventorsDongyao Chen, Yurong Jiang, Kyu-Han Kim
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Abstract
Examples disclosed herein involve determining a location of a Bluetooth device relative to a detecting device based on measured received signal strength indication (RSSI). In examples herein, a regression analysis of RSSIs of a Bluetooth signal and locations of a detecting device are used to determine the location of the target Bluetooth device.
Claims19
A method implemented by a detecting device to determine a location of a Bluetooth device, the method comprising:
- detecting a Bluetooth signal from the Bluetooth device at a first location of the detecting device and determining a first received signal strength indicator (a first RSSI) of the Bluetooth signal at the first location;
- detecting the Bluetooth signal from the Bluetooth device at a second location of the detecting device and determining a second RSSI of the Bluetooth signal at the second location;
- determining a first direction of the Bluetooth signal based on a first orientation of the Bluetooth device at the first location and a second direction of the Bluetooth signal based on a second orientation of the Bluetooth device at the second location;
- and
- determining a location of the Bluetooth device, relative to the detecting device based on a regression analysis of the first RSSI and the second RSSI, the first direction of the Bluetooth signal, and the second direction of the Bluetooth signal at the first location of the detecting device and at the second location of the detecting device, with respect to a distance between the first location of the detecting device and the second location of the detecting device measured by the detecting device.
A non-transitory machine readable medium comprising instructions that, when executed, cause a machine to at least:
- receive multiple RSSIs (received signal strength indicators of a Bluetooth signal of a target Bluetooth device and a plurality of orientations of the target Bluetooth device;
- perform a regression analysis on the RSSIs of the Bluetooth signal, at multiple locations of a mobile Bluetooth device where the RSSIs of the Bluetooth signal were measured;
- and
- determine candidate target locations of the target Bluetooth device based on the regression analysis, a distance between the locations of the mobile Bluetooth device where the RSSIs of the Bluetooth signal were measured, and a plurality of directions of the Bluetooth signal based on the plurality of orientations of the mobile Bluetooth device, wherein the distance between the locations is measured by the mobile Bluetooth device, and one of the candidate target locations is an estimated actual location.
A system comprising:
- a target location analyzer operable to:
- receive RSSIs (received signal strength indicators) and multiple directions of multiple Bluetooth signals from a target Bluetooth device,
- perform a regression analysis based on the RSSIs and directions at respective locations and orientations of a detecting device that measured the RSSIs, and
- determine candidate locations of the target Bluetooth device based on the regression analysis and a distance between multiple locations of a detecting device that measured the RSSIs, wherein the distance between the locations is measured by the target location analyzer;
- and
- a Bluetooth device locator operable to:
- determine an orientation of the detecting device, and
- determine the direction of the Bluetooth signals from the target Bluetooth device based on the orientation of the detecting device.
Dependencies are inferred from the claim text.