Patent ID: 8599024

Claim:
A radio frequency environment object monitoring system, comprising: a three dimensional radio environment monitoring system, comprising an RF transmitter-receiver coupled to an antenna, the antenna provided with an electronic steering circuit; the antenna operative to launch a continuous wave signal, the continuous wave signal steerable by the electronic steering circuit; a processor provided with a data matrix for storing a plurality of signal data records of a plurality of response signal(s) received by the RF transmitter-receiver; and a position logic operative upon the data record(s) to derive a three dimensional signal origin location of the plurality of response signals within a target area; a baseline data set of the response signals associated with known object locations within the target area, prior to entry into the target area of untagged objects; the plurality of response signals including an RF environment fingerprint, the RF environment fingerprint including: a fast Fourier transform (FFT) of a received signal envelope at an instant in time; and a time reference; and a rules engine for comparing the signal data record(s) with the baseline data set to determine an object inventory.