Anti-collision method and system based on radio frequency recognition technique

The invention discloses an anti-collision method and system based on a radio frequency recognition technique. The anti-collision method comprises the following steps: transmitting inquiry information to tags, receiving response information of the tags, grouping the tags by using a fuzzy means clustering algorithm according to the response information, distributing a sole recognition sequence number to the tags, and recognizing the grouped tags according to the sole tag recognition sequence numbers of the tags; when one grouped tag is recognized, recognizing a next grouped tag until all grouped tags are recognized, thereby achieving tag grouping recognition. By adoption of the fuzzy means clustering algorithm, the tags are effectively grouped, and by sequential recognition of the grouped tags, collision is effectively reduced, and the recognition efficiency is improved.