WO2009113825A3 - 충돌 타입의 식별 기능을 갖는 rfid 리더 및 그 제어방법 - Google Patents

충돌 타입의 식별 기능을 갖는 rfid 리더 및 그 제어방법 Download PDF

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Publication number
WO2009113825A3
WO2009113825A3 PCT/KR2009/001253 KR2009001253W WO2009113825A3 WO 2009113825 A3 WO2009113825 A3 WO 2009113825A3 KR 2009001253 W KR2009001253 W KR 2009001253W WO 2009113825 A3 WO2009113825 A3 WO 2009113825A3
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WO
WIPO (PCT)
Prior art keywords
rfid interrogator
collision
control method
collision type
identification function
Prior art date
Application number
PCT/KR2009/001253
Other languages
English (en)
French (fr)
Other versions
WO2009113825A2 (ko
Inventor
박찬원
배지훈
이동한
오세원
최길영
표철식
채종석
프레이슈버-플뤼겔조셉
취쉐데이비드
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to DE112009000592T priority Critical patent/DE112009000592T5/de
Priority to US12/922,067 priority patent/US8779900B2/en
Publication of WO2009113825A2 publication Critical patent/WO2009113825A2/ko
Publication of WO2009113825A3 publication Critical patent/WO2009113825A3/ko

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0825—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/0858—Random access procedures, e.g. with 4-step access with collision treatment collision detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Air Bags (AREA)

Abstract

본 발명은 충돌 타입의 식별 기능을 갖는 RFID 리더 및 그 제어방법에 관한 것으로, RF 통신부에 수신된 신호의 데이터를 분석하여 수신신호의 충돌발생 여부를 확인하고, 해당 RFID 리더와 다른 RFID 리더 또는 태그 중 충돌 발생 수단에 따른 충돌 타입을 진단하여 대응하는 충돌 해결 동작을 수행하도록 한다. 본 발명에 따르면, RFID 리더와 태그 사이에서 발생되는 모든 타입의 충돌에 대한 식별이 가능하므로, 충돌 발생 원인을 빠르게 인지할 수 있어 충돌 발생 원인에 대처할 수 있게 된다. 또한, RFID 리더를 구비한 모바일 어플리케이션에서 충돌이 감지된 경우, 해당 충돌 타입에 대응하는 충돌 제어를 처리함으로써, 이미 시작된 인벤토리 라운드(inventory round)를 성공적으로 종료할 수 있는 이점이 있다.
PCT/KR2009/001253 2008-03-12 2009-03-12 충돌 타입의 식별 기능을 갖는 rfid 리더 및 그 제어방법 WO2009113825A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112009000592T DE112009000592T5 (de) 2008-03-12 2009-03-12 RFID-Interrogator mit Kollisionstyp-Identifizierungsfunktion und Steuerungsverfahren hierfür
US12/922,067 US8779900B2 (en) 2008-03-12 2009-03-12 RFID interrogator having collision type identification function and control method thereof

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2008-0023053 2008-03-12
KR20080023053 2008-03-12
US7987008P 2008-07-11 2008-07-11
US61/079,870 2008-07-11
KR1020090013109A KR20090097784A (ko) 2008-03-12 2009-02-17 충돌 타입의 식별 기능을 갖는 ｒｆｉｄ 리더 및 그 제어방법
KR10-2009-0013109 2009-02-17

Publications (2)

Publication Number Publication Date
WO2009113825A2 WO2009113825A2 (ko) 2009-09-17
WO2009113825A3 true WO2009113825A3 (ko) 2010-04-08

Family

ID=41357082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/001253 WO2009113825A2 (ko) 2008-03-12 2009-03-12 충돌 타입의 식별 기능을 갖는 rfid 리더 및 그 제어방법

Country Status (4)

Country Link
US (1) US8779900B2 (ko)
KR (2) KR20090097784A (ko)
DE (1) DE112009000592T5 (ko)
WO (1) WO2009113825A2 (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699636B2 (en) * 2009-08-07 2014-04-15 Ben Wild Long range radio frequency identification system
US9367718B2 (en) 2012-10-22 2016-06-14 Iotera, Inc. Methods for enabling low-power RFID communication
US9477865B2 (en) * 2013-12-13 2016-10-25 Symbol Technologies, Llc System for and method of accurately determining true bearings of radio frequency identification (RFID) tags associated with items in a controlled area
US9755294B2 (en) 2014-07-07 2017-09-05 Symbol Technologies, Llc Accurately estimating true bearings of radio frequency identification (RFID) tags associated with items located in a controlled area
US9773136B2 (en) 2015-10-19 2017-09-26 Symbol Technologies, Llc System for, and method of, accurately and rapidly determining, in real-time, true bearings of radio frequency identification (RFID) tags associated with items in a controlled area
US10726218B2 (en) 2017-07-27 2020-07-28 Symbol Technologies, Llc Method and apparatus for radio frequency identification (RFID) tag bearing estimation
KR102199125B1 (ko) * 2020-07-27 2021-01-06 에스트래픽 (주) Ｒｆｉｄ 리더, 및 ｒｆｉｄ 리더들간의 통신 충돌 회피를 위한 시분할 통신 제어방법
CN115515115A (zh) * 2022-09-19 2022-12-23 电子科技大学 频分复用式超高频rfid标签及其响应方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023472A2 (en) * 2005-08-25 2007-03-01 Nxp B.V. Method and rfid reader for evaluating a data stream signal in respect of data and/or collision
US20070069859A1 (en) * 2005-09-23 2007-03-29 Ji-Hoon Bae Mobile RFID reader and control method thereof
WO2007108576A1 (en) * 2006-03-23 2007-09-27 Kt Corporation Apparatus for recognizing radio frequency identification (rfid) and method thereof, and data processing method of rfid

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CA2573773A1 (en) * 2004-07-15 2006-02-23 Mastercard International Incorporated Reference equipment for testing contactless payment devices
JP2006340201A (ja) 2005-06-03 2006-12-14 Mitsubishi Electric Corp リーダ装置及び無線周波数識別システム
KR100682062B1 (ko) 2005-06-23 2007-02-15 삼성전자주식회사 리더기, 태그, 전파식별(ｒｆｉｄ) 시스템 및 전파 식별방법
KR20070056815A (ko) 2005-11-30 2007-06-04 주식회사 유컴테크놀러지 무선주파수인식 시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023472A2 (en) * 2005-08-25 2007-03-01 Nxp B.V. Method and rfid reader for evaluating a data stream signal in respect of data and/or collision
US20070069859A1 (en) * 2005-09-23 2007-03-29 Ji-Hoon Bae Mobile RFID reader and control method thereof
WO2007108576A1 (en) * 2006-03-23 2007-09-27 Kt Corporation Apparatus for recognizing radio frequency identification (rfid) and method thereof, and data processing method of rfid

Also Published As

Publication number Publication date
KR20090097831A (ko) 2009-09-16
KR20090097784A (ko) 2009-09-16
US20110018691A1 (en) 2011-01-27
US8779900B2 (en) 2014-07-15
KR101502755B1 (ko) 2015-03-16
DE112009000592T5 (de) 2012-01-26
WO2009113825A2 (ko) 2009-09-17

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