Improved RFID Anti-collision Algorithm Based on Binary

Anti collision algorithm is the key technology of RFID.Based on the analysis of the existing algorithms,an improved anti-collision algorithm based on binary tree searching algorithm is put forward in the paper.Combining the adaptive power technology and binary search algorithm,first,automatically adjusts the power to control the reader communication range by a parameter.Restricted the number of tags access to the reader identification range,then identification the tag,thus reduces the possibility of conflict and improve the efficiency of tag identification.Through the simulation results of recognition process show that: the improved algorithm improves the anti-collision performance and improve the RFID system efficiency of label recognition.