Intelligent recognition of RFID tag position

The antenna height, read field length, and tag direction are very important factors in tag position recognition. Currently, the best tag position on the target objects is found by experimenting all possible cases with a trial-and-error method. Introduced is a method for identifying the best RFID tag position by employing an intelligent tag strength prediction approach using the backpropagation learning algorithm of neural networks. Experiments reveal that the proposed approach gives high prediction accuracy of mostly about 90%.