公开(公告)号：US11966807B2

公开(公告)日：2024-04-23

申请号：US18450021

申请日：2023-08-15

Applicant: Nanjing University of Information Science and Technology

Inventor： Jian Su ,  Jialin Zhou ,  Wei Zhuang ,  Ling Tan

IPC: G06K7/10 ,  G06F16/903

CPC classification number: G06K7/10366 ,  G06F16/90344

Abstract: A multi-tag concurrent identification method and a system for a query tree based on feature groups are provided in this disclosure. In the disclosure, a whole data string space is divided into a plurality of disjoint subsets according to features of data strings returned by tags, where each of the subsets contains several different data strings, each of the data strings in the each of the subsets is regarded as a complete tag ID or a partial ID, and the each of the subsets corresponds to a unique query prefix, a length of the prefix is fixed and does not dynamically increase with an actual location of a collision, and when multiple data strings from a same subset return at a same time, a reader is capable of identifying them at a same time in a slot.