Patent ID: 9628675
Date: 2017-04-18
CPC Classifications: G08B,H04N

Claim:
1. An object tracking and recognition system comprising: a coordinate and image model for obtaining coordinates and image information for a detection range; a RFID device for detecting the strength of a RF signal transmitted by an object entering the detection range; a video device controlled to turn on and obtain image information of the object in response to the strength of the RF signal detected by the RFID device reaching a threshold indicating the object is within the detection range and within a distance from the video device; an information generator for receiving the coordinates from the coordinate and image model and mapping a location of the object to identify a position of the object within the detection range; a coordinate generator for receiving the coordinates from the coordinate and image model to detect the distance of the object to the video device; and a processor for updating the threshold as a function of a relationship model of strength values of the RF signal of at least two locations in the detection range of the video device, wherein the relationship model is a linear matrix model of signal strength between the regions in the detection range and the threshold is updated by a single or multiple point estimation method based on the relationship model.