| 摘要 |
A method for preventing collision of tags in a RFID system is provided, the method comprising: a reader beginning to inventory tags and waiting for replies of the tags; if replies of the tags collide, splitting the tags into two subsets, the tags in one of the subsets replying to the reader, and when inventory of the tags in the subset is completed, the tags in the other subset beginning to reply; if collision occurs during the replying by the tags in the subset, the subset splitting again, till inventory of all the tags is completed; and during splitting of the tags in the subsets, performing simultaneous splitting of a plurality of branches of tags at least once. |
