Method for Movement Direction Judgment of Secret Carriers Based on Multi-frequency RFID

摘要

Aimed at the low accuracy problem in the current movement direction judgment methods of secret carriers, a method for movement direction judgment based on multifrequency RFID is presented. Firstly, the constitution, deploy and workflow are given. Second, a movement direction judgment algorithm based on T &S is proposed by use of the data about trigger area and arriving time in the access process. Last, the prototype has been tested, the movement direction judgment accuracy is 100%, and it has the eliminating abnormal access ability and the judging multiple reentry ability. Test results indicate that the proposed scheme is effective and credible.