Title:
METHOD FOR PREVENTING COLLISION OF RFID TAGS IN AN RFID SYSTEM
Document Type and Number:
WIPO Patent Application WO/2009/059506
Kind Code:
A1
Abstract:
A method for preventing collision of RFID tags in an RFID system is provided. The method
includes: a reader begins to count the tags, and waits for feedback of the tags;
the tags are split into two subsets if the tags feed back the collision, the tags
of one of the subsets feed back, the tags of the other subset begin to feedback when
the tags of one of the subsets complete the count; when the collision occurs in
the course of feedback, then the split continues until all the tags are completed the
count; the tags of many branches are at least once split simultaneously when the
tags of the subsets are split.
Inventors:
JIAO HONGAI (CN)
ZHANG JIAN (CN)
DU JIANG (CN)
ZHANG JIAN (CN)
DU JIANG (CN)
Application Number:
PCT/CN2008/071646
Publication Date:
May 14, 2009
Filing Date:
July 15, 2008
Export Citation:
Assignee:
ZTE CORP (CN)
JIAO HONGAI (CN)
ZHANG JIAN (CN)
DU JIANG (CN)
JIAO HONGAI (CN)
ZHANG JIAN (CN)
DU JIANG (CN)
International Classes:
G06K17/00
Foreign References:
| CN101069193A | 2007-11-07 | |||
| KR20060115694A | 2006-11-09 | |||
| CN1790366A | 2006-06-21 |
Other References:
See also references of EP 2230631A4
None
None
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (Suite B 305A8 Xueqing Road,Haidian, Beijing 5, CN)
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