JP4063758B2 - 超音波識別装置及び方法 - Google Patents
超音波識別装置及び方法 Download PDFInfo
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- JP4063758B2 JP4063758B2 JP2003389046A JP2003389046A JP4063758B2 JP 4063758 B2 JP4063758 B2 JP 4063758B2 JP 2003389046 A JP2003389046 A JP 2003389046A JP 2003389046 A JP2003389046 A JP 2003389046A JP 4063758 B2 JP4063758 B2 JP 4063758B2
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- Prior art keywords
- time slot
- tag
- tags
- detector
- slot cycle
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- 238000000034 method Methods 0.000 title claims description 11
- 230000004044 response Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 23
- 230000004913 activation Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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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
- G06K7/10—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
-
- 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
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Near-Field Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
211 タイムスロットサイクル
212 タイムスロットサイクルインターバル
214 ミュート信号
220 タイムスロットサイクル
222 待機時間
300 検出器がタイムスロットサイクル信号を送信する段階
302 異なるタイムスロットのタグからの応答を検出する段階
304 タグからの応答をカウントする段階
306 カウント結果にしたがって検出範囲の異なる識別コードをもつタグの数を確認する段階
Claims (11)
- 超音波識別(RFID)装置であって:
タイムスロットサイクル信号を送信する検出器であって、前記タイムスロットサイクル信号の各々は幾つかのタイムスロットに分割されている、検出器;及び
前記タイムスロットサイクル信号を受信する複数のタグであって、前記タイムスロットサイクル信号の各々の異なるタイムスロットにおいて前記検出器に応答する、複数のタグ;
を有する超音波識別(RFID)装置であり、
前記複数のタグの各々はそれぞれ、乱数を発生するようにランダムジェネレータを有し、各々の単一の前記タイムスロットサイクル信号における前記乱数に対応する関連タイムスロットにおける前記検出器に応答し、前記乱数の範囲は前記タイムスロット数より大きくならず;
前記ランダムジェネレータは前記タイムスロットサイクル信号の各々において発振器の不安定さを適用することにより新しい乱数を連続的に発生する;
ことを特徴とするRFID装置。 - 請求項1に記載のRFID装置であって、前記ランダムジェネレータは共振回路である、ことを特徴とするRFID装置。
- 請求項1に記載のRFID装置であって、前記タイムスロットサイクル信号は13.56MHzの電磁波である、ことを特徴とするRFID装置。
- 請求項1に記載のRFID装置であって、前記タイムスロット間のインターバルとしてミュート信号が用いられ、前記タイムスロットサイクル間のインターバルとして4つの連続するミュート信号が用いられる、ことを特徴とするRFID装置。
- 超音波識別(RFID)装置であって:
タイムスロットサイクル信号を送信する検出器であって、前記タイムスロットサイクル信号の各々が幾つかのタイムスロットに分割される、検出器;及び
前記タイムスロットサイクル信号を受信する複数のタグであって、前記複数のタグの各々はそれぞれ、乱数を発生するようにランダムジェネレータを有し、個々の前記複数のタグは前記タイムスロットサイクル信号の各々における前記乱数に対応する関連タイムスロットにおいて前記検出器に応答し、前記タグは異なるタイムスロットサイクルにおいて異なる乱数を発生する、複数のタグ;
を有するRFID装置であり、
前記乱数の範囲は前記タイムスロット数より大きくなく;
前記複数のタグを検出する前記検出器の段階は、連続するタイムスロットサイクル信号を送信する段階であって、前記タイムスロットサイクルの各々は幾つかのタイムスロットに分割されている、段階と、全ての応答が検出範囲において前記タグを生成することを検出する段階であって、前記応答は異なるタイムスロットにおけるものである、段階と、前記タグから応答数をカウントし、前記タグの存在を確認するように所定の閾値と比較する、段階とを有する;
ことを特徴とするRFID装置。 - 請求項5に記載のRFID装置であって、ミュート信号は前記タイムスロット間のインターバルとして用いられ、4つの連続するミュート信号が前記タイムスロットサイクル間のインターバルとして用いられる、ことを特徴とするRFID装置。
- 超音波識別(RFID)装置において同じ識別コードをもつタグを識別する検出器のための方法であって:
連続的タイムススロットサイクル信号を送信する段階であって、各々の前記タイムスロットサイクル信号は幾つかのタイムスロットに分割されている、段階;
全ての応答が検出範囲においてタグを生成することを検出する段階であって、前記応答は異なるタイムスロットにある、段階;並びに
前記タグから応答数をカウントし、前記タグの存在を確認するように所定の閾値と比較する、段階;
を有する、ことを特徴とする方法。 - 請求項7に記載の方法であって、前記タグは前記応答のタイムスロットを検出するようにランダムジェネレータを用いる、ことを特徴とする方法。
- 請求項7に記載の方法であって、前記タグは各々のタイムスロットサイクルの異なるタイムスロットにおいて前記検出器に応答する、ことを特徴とする方法。
- 請求項7に記載の方法であって、前記タイムスロットサイクル信号は13.56MHzの電磁波である、ことを特徴とする方法。
- 請求項7に記載の方法であって、前記タイムスロット間のインターバルとしてミュート信号が用いられ、前記タイムスロットサイクル間のインターバルとして4つの連続するミュート信号が用いられる、ことを特徴とする方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW091134229A TWI261787B (en) | 2002-11-25 | 2002-11-25 | RFID device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004180300A JP2004180300A (ja) | 2004-06-24 |
JP4063758B2 true JP4063758B2 (ja) | 2008-03-19 |
Family
ID=29778267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003389046A Expired - Fee Related JP4063758B2 (ja) | 2002-11-25 | 2003-11-19 | 超音波識別装置及び方法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4063758B2 (ja) |
DE (1) | DE10352734A1 (ja) |
GB (1) | GB2396781B (ja) |
TW (1) | TWI261787B (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1717963B1 (en) | 2005-04-25 | 2010-04-14 | Sony Ericsson Mobile Communications AB | Electronic equipment for a wireless communication system and method for operating an electronic equipment for a wireless communication system |
WO2006046289A1 (ja) * | 2004-10-28 | 2006-05-04 | Mitsubishi Denki Kabushiki Kaisha | 通信装置および通信方法 |
JP4514676B2 (ja) * | 2005-08-31 | 2010-07-28 | 富士通株式会社 | 情報アクセス・システム |
KR100848639B1 (ko) | 2007-05-15 | 2008-07-28 | 에스케이 텔레콤주식회사 | Rfid 시스템에서 타임 슬롯 수를 결정하기 위한 장치및 이를 사용한 태그 인식 방법, 시스템 |
KR100948049B1 (ko) | 2007-11-01 | 2010-03-19 | 주식회사 메디슨 | 초음파 진단기 관리 시스템 |
US8031069B2 (en) | 2008-01-14 | 2011-10-04 | Oded Yair Cohn | Electronic security seal and system |
CN101751538B (zh) * | 2008-12-01 | 2012-03-28 | 中兴通讯股份有限公司 | 射频识别rfid标签处理方法和装置 |
TWI645338B (zh) * | 2017-10-26 | 2018-12-21 | 茂德科技股份有限公司 | 應用於無線射頻識別讀取器的操作方法 |
CN115001539A (zh) | 2019-04-11 | 2022-09-02 | 奈克赛特公司 | 配置为利用采集的能量进行传输供能的无线装置 |
US11551537B2 (en) | 2019-04-11 | 2023-01-10 | Nexite Ltd. | Wireless dual-mode identification tag |
EP4275160A1 (en) | 2021-01-11 | 2023-11-15 | Nexite Ltd. | Contactless and automatic operations of a retail store |
US11797928B2 (en) | 2021-12-13 | 2023-10-24 | Nexite Ltd. | Dual-antenna, four-armed identification tag |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5640151A (en) * | 1990-06-15 | 1997-06-17 | Texas Instruments Incorporated | Communication system for communicating with tags |
US5307349A (en) * | 1992-04-07 | 1994-04-26 | Hughes Aircraft Company | TDMA network and protocol for reader-transponder communications and method |
GB2283600B (en) * | 1993-11-02 | 1997-10-22 | Nippon Denso Co | Communication system |
US5539394A (en) * | 1994-03-16 | 1996-07-23 | International Business Machines Corporation | Time division multiplexed batch mode item identification system |
GB2319698B (en) * | 1996-11-21 | 2001-08-08 | Motorola Inc | Method for communicating with a plurality of contactless data carriers and contactless data carrier for use therein |
JP3858521B2 (ja) * | 1999-06-28 | 2006-12-13 | 松下電器産業株式会社 | 移動体識別装置 |
EP1734461A2 (en) * | 1999-07-12 | 2006-12-20 | Matsushita Electric Industrial Co., Ltd. | Mobile body discrimination apparatus for rapidly acquiring respective data sets transmitted through modulation of reflected radio waves by transponders which are within a communication region of an interrogator apparatus |
-
2002
- 2002-11-25 TW TW091134229A patent/TWI261787B/zh not_active IP Right Cessation
-
2003
- 2003-11-12 DE DE10352734A patent/DE10352734A1/de not_active Ceased
- 2003-11-19 JP JP2003389046A patent/JP4063758B2/ja not_active Expired - Fee Related
- 2003-11-21 GB GB0327196A patent/GB2396781B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10352734A1 (de) | 2004-07-01 |
TWI261787B (en) | 2006-09-11 |
GB2396781A (en) | 2004-06-30 |
GB2396781B (en) | 2006-07-12 |
JP2004180300A (ja) | 2004-06-24 |
GB0327196D0 (en) | 2003-12-24 |
TW200300045A (en) | 2003-05-01 |
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