Research on Anti-Collision Algorithm in Radio Frequency Identification Technology

In the RFID reader recognition range, there are 2 or more than 2 tags and reader communications. Due to aliasing and interference of different signals, tag cannot be read and write the correct recognition, which leads to collision and reduce system efficiency. In order to improve the electronic tag identification efficiency of the RFID system, this paper takes the random ALOHA anti-collision algorithm as the research object based on the implementation of efficiency, stability and application of the system and proposes a new ALOHA anticollision algorithm. A dynamic adaptive adjustment method is used to improve the tag estimation and the frame length adjustment. MATLAB simulation is employed to analyze the effectiveness and superiority of the new algorithm which enjoys more advantages compared with the previous algorithm.