A Binary Anti-collision Algorithm Based on the Grouping for Tags

In order to overcome the shortcomings of the existing binary anti-collision, such as a lot of interaction times, large amount communication data and long communication time, proposed a new anti-collision algorithm. The new algorithm grouped the tags according initial collision bits, until only one tag in each group. Values of every tags in the register formed a continuous sequence of natural numbers starting from zero, and it was just the group number. The simulation analysis and experiments have proved that the algorithm reduces interaction times and communication data, shortens the communication time effectively.