Patent ID: 9743252
Date: 2017-08-22
CPC Classifications: G01S,G08B,H04W

Claim:
1. A system comprising: a plurality of devices, wherein each of the plurality of devices transmits at least one of a location identifier or location information, and wherein each of the plurality of devices receives RF and sound signals; a determination element coupled to each of the plurality of devices, wherein the determination element receives the location information transmitted from each of the plurality of devices; and a plurality of units that transmit identification information, wherein each of the plurality of devices that receives the identification information from at least one of the plurality of units transmits both the identification information for the at least one of the plurality of units and the location information from a respective one of the plurality of devices to the determination element, wherein the determination element determines a location of the at least one of the plurality of units relative to the plurality of devices, wherein the determination element sends the location to the at least one of the plurality of units through the respective one of the plurality of devices, and wherein the at least one of the plurality of units stores the location.