%A HOU Pei-guo, WANG Zhi-xuan, YAN Chen %T Improvement of Anti-collision Algorithm Based on RFID Tag %0 Journal Article %D 2019 %J Computer Science %R %P 359-362 %V 46 %N 11A %U {https://www.jsjkx.com/CN/abstract/article_18755.shtml} %8 2019-11-10 %X Radio Frequency Identification (RFID) technology is a key technology in the Internet of Things.To solve the multi-tag collision problem in RFID system,this paper proposed a frame time slot Aloha anti-collision algorithm based on combined chaotic map (MDFSA).Through the algorithm,the pseudo-random number obtained by the system is more uniform,the selection of labels for each time slot is more uniform.Through statistical verification,the simulation results show that the MDFSA algorithm improves the stability and efficiency of the system and reduces the number of collisions.Compared with traditional DFSA algorithm,the proposed algorithm increases the efficiency of the maximum system by 33%.As the number of tags increases,the performance of the algorithm is more stable and the advantages are more significant.It is suitable for large RFID tag rapid identification systems.