Query tree based tag identification method in RFID systems
摘要
A query tree based tag identification method in RFID systems includes: (a) forming a temporary ID for each of the tags; (b) comparing an inquiry of the reader with a portion of the temporary ID in each tag when receiving the inquiry from the reader; (c) if the inquiry and the portion of the temporary ID are identical to each other, transmitting a remainder of the temporary ID in each tag to the reader; (d) if a collision occurs in the step (c), generating new inquiries for storing them in the reader; (e) if there is no collision in the step (c), transmitting an ACK signal to each tag whose temporary ID is identified to receive its real tag ID therefrom; and (f) repeating the steps (b) to (e) until there is no inquiry in the reader.
申请公布号
EP1914660(A1)
申请公布日期
2008.04.23
申请号
EP20060026586
申请日期
2006.12.21
申请人
RESEARCH AND INDUSTRIAL COOPERATION GROUP
发明人
CHOI, JI HWAN;LEE, HYUCKJAE;LEE, DONGWOOK;LEE, HYUNSEOK;YOUN, YOUNGWOO;KIM, JUNGEUN