AU2002951699A0 - Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme - Google Patents

Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme

Info

Publication number
AU2002951699A0
AU2002951699A0 AU2002951699A AU2002951699A AU2002951699A0 AU 2002951699 A0 AU2002951699 A0 AU 2002951699A0 AU 2002951699 A AU2002951699 A AU 2002951699A AU 2002951699 A AU2002951699 A AU 2002951699A AU 2002951699 A0 AU2002951699 A0 AU 2002951699A0
Authority
AU
Australia
Prior art keywords
destructive
slotted aloha
tag collisions
collision scheme
aloha anti
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2002951699A
Inventor
Alfio Roberto Grasso
David Malcolm Hall
David Bruce Murfett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tagsys Australia Pty Ltd
Original Assignee
Tagsys Australia Pty Ltd
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 Tagsys Australia Pty Ltd filed Critical Tagsys Australia Pty Ltd
Priority to AU2002951699A priority Critical patent/AU2002951699A0/en
Publication of AU2002951699A0 publication Critical patent/AU2002951699A0/en
Priority to PCT/AU2003/001190 priority patent/WO2004029652A1/en
Priority to AU2003258380A priority patent/AU2003258380A1/en
Abandoned legal-status Critical Current

Links

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
    • G06K7/10—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.
    • G06K7/10029—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. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10039—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. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/781—Secondary Surveillance Radar [SSR] in general
    • G01S13/784—Coders or decoders therefor; Degarbling systems; Defruiting systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Near-Field Transmission Systems (AREA)
AU2002951699A 2002-09-27 2002-09-27 Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme Abandoned AU2002951699A0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002951699A AU2002951699A0 (en) 2002-09-27 2002-09-27 Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme
PCT/AU2003/001190 WO2004029652A1 (en) 2002-09-27 2003-09-10 Method for avoiding collisions between rfid tags
AU2003258380A AU2003258380A1 (en) 2002-09-27 2003-09-10 Method for avoiding collisions between rfid tags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2002951699A AU2002951699A0 (en) 2002-09-27 2002-09-27 Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme

Publications (1)

Publication Number Publication Date
AU2002951699A0 true AU2002951699A0 (en) 2002-10-17

Family

ID=28047452

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002951699A Abandoned AU2002951699A0 (en) 2002-09-27 2002-09-27 Method of avoiding continued destructive tag collisions in an slotted aloha anti-collision scheme

Country Status (2)

Country Link
AU (1) AU2002951699A0 (en)
WO (1) WO2004029652A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004020956B4 (en) 2004-04-28 2009-03-26 Atmel Germany Gmbh Communication methods in RFID or remote sensor systems
US7548153B2 (en) 2004-07-09 2009-06-16 Tc License Ltd. Multi-protocol or multi-command RFID system
US7538676B2 (en) 2006-06-06 2009-05-26 International Business Machines Corporation System and method for swapping tag reads based on statistical analysis of known environment
CN115665715B (en) * 2022-12-26 2023-04-07 北京通成网联科技有限公司 Group reading response method and device for RFID (radio frequency identification) tags

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8901659A (en) * 1989-06-30 1991-01-16 Nedap Nv MULTIPASS SYSTEM.
JP3100716B2 (en) * 1991-01-04 2000-10-23 シーエスアイアール Identification device
US5557280A (en) * 1992-08-26 1996-09-17 British Technology Group Limited Synchronized electronic identification system

Also Published As

Publication number Publication date
WO2004029652A1 (en) 2004-04-08

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