An Efficient RFID-Based Localization Method with Mobile Robot

Haibing Wu, Zeyu Gong, Bo Tao, Zhouping Yin

Abstract: A RFID-based localization method, using the phase data and its gradient information of radio signal between the RFID reader and tag, is proposed in this paper. The unknown RFID tags location can be calculated through calibrating phase drift and structuring count matrix and difference matrix. A mobile robot equipped with odometer sensors and a RFID reader is employed herein to form the synthetic aperture. Simulations are performed, and the results show that the proposed method can achieve a satisfied localization accuracy at shorter synthetic aperture length, and has the potential in warehouse management.