Patent ID: 11902858
Assignee: X DEVELOPMENT LLC
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for locating asset tracking tags, the method comprising:
obtaining, by a receiver device, a ramped sequence of beacon signals from a beacon tracking tag, the ramped sequence of beacon signals including at least one minimum power signal and at least one maximum power signal, each beacon signal in the sequence including tag identification information and an initial signal strength value indicating a transmitted power level for that beacon signal, wherein the beacon tracking tag is attached to a fixture of an environment;
associating, by one or more processors of the receiver device, each beacon signal in the ramped sequence with a timestamp indicating a reception time at which that beacon signal was received by a reader device;
associating, by the one or more processors of the receiver device, each beacon signal in the ramped sequence with a received signal strength at the reception time;
estimating, by the one or more processors of the receiver device, a location of the beacon tracking tag according to each beacon signal in the ramped sequence based on the difference between the initial signal strength value and the received signal strength for each respective beacon signal;
identifying, by the one or more processors, a position of the reader device based on the estimated location of the beacon tracking tag; and
identifying, by the one or more processors, a location of an asset tracking tag based on the identified position of the reader device and one or more data packets received by the reader device from the asset tracking tag.