A system includes a central server; a reader in communication with the central server; and a set of equipment racks. Each equipment rack of the set of equipment racks defines a face. The each equipment rack includes an observer device and at least two antenna arrays. At least one of the at least two antennas is in communication with the observer device. The system further including a set of tags attached to assets disposed within the set of equipment racks. Each tag of the set of tags is to transmit a beacon signal including a tag identifier of the each tag. The at least one antenna is to receive the beacon signal. The observer device is to communicate the tag identifier and the characteristics of the beacon signal to the reader and central server. The central server determines a rack location based on the characteristics of the beacon signal.