SYSTEM AND METHOD OF LOCATING A RADIO FREQUENCY (RF) TRACKING DEVICE USING A CALIBRATION ROUTINE

摘要

Position tracking systems and methods for tracking a physical location of a radio frequency (RF) transmitter include an RF transmitter transmitting an RF signal from a plurality of known locations. At least four RF receiver antennae are disposed at unknown locations within range of the RF transmitter to receive the RF signals transmitted from the plurality of known locations. A receiver station in communication with the at least four RF receiver antennae initially calibrates a relative position of each RF receiver antenna with respect to the other RF receiver antennae based on the plurality of known locations and on information acquired in response to the RF signals received at the at least four RF receiver antennae.

主权项

1. A calibration system for calibrating a position tracking system used to track a physical location of a radio frequency (RF) transmitter, the calibration system comprising:
an RF transmitter transmitting an RF signal from each of a plurality of locations where the RF transmitter is placed in turn; at least four RF receiver antennae disposed at undetermined locations within range of the RF transmitter to receive the RF signals transmitted from the plurality of locations; a calibration apparatus configured to provide a calibration template with a predefined set of reference points, each reference point corresponding to one of the plurality of locations where the RF transmitter is placed in turn and from which the RF transmitter transmits the RF signal; and a receiver station in communication with the at least four RF receiver antennae, the receiver station initially calibrating a relative position of each RF receiver antenna with respect to each other RF receiver antenna based on the plurality of locations and on information acquired in response to the RF signals received at the at least four RF receiver antennae.