Abstract:

To identify targets without manpower interaction, RFID technology relies on wireless message exchange between tags and reader. In this way, RFID technology

attracts attention in modern logistics industry. Limited by design complexity of RFID reader, collision happens when identifying a lot of tags. Current probabilistic

anticollision algorithms have low identifying probability. They are not efficient enough for identification of large number tags. An adoptive frame based anticollision

algorithms(AFA) is proposed in this paper. The analysis results show that this algorithm could adjust frame length adaptively, thus the identifying probability rises.

Key words:  , RFID； probabilistic algorithm； anticollision algorithm