TAG COLLISION PREVENTION METHOD UNDER MULTI RFID TAG ENVIRONMENT OF 900 MHZ

摘要

PURPOSE: A tag collision prevention method under multi RFID tag environment of 900 MHz is provided to set up a proper slot count and a number of slots of a next round by using chebyshev inequality.;CONSTITUTION: An identification frequency is transmitted to a plurality of tags. The number of tags is presumed according to the response transmitted from the tags. The number of slot counts based on the presumed number of tags and slots is adjusted and transmitted to the tag. The slot is one of read results values by classifying the tag about a query command of the reader. The slot classifies the reaction of the tag about the query instruction of reader.;COPYRIGHT KIPO 2010