JP5702801B2 - タグ付き物品を識別するシステムおよび方法 - Google Patents
タグ付き物品を識別するシステムおよび方法 Download PDFInfo
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- 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
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- G06K7/10168—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 methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field the powering being adversely affected by environmental influences, e.g. unwanted energy loss in the interrogation signal due to metallic or capacitive objects in the proximity of the interrogation device or in the proximity of the interrogated record carrier
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- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
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- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- G06K7/10366—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 the interrogation device being adapted for miscellaneous applications
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Description
N=正のゼロ以外の整数、たとえば1、2、3など
L1=プローブと後壁との距離
L2=プローブと前壁との距離
λg=空洞の波長
L1はTEモードに対してゼロにはなり得ない、つまりTEモード励磁のプローブは前壁または後壁にあってはならないことを意味する。TMモードの場合、式は同じであるが、Nはゼロおよびその他の正の整数と等しくてもよい。プローブ位置は、前壁または後壁からλg/2にはなり得ない。L1およびL2は、Nが式を満足する正の整数となりうるように選択される。たとえば、前述のエンクロージャ166の場合、以下のようになる。
L1=4.785インチ
L2=11.225インチ
λg=12.83インチ
ゆえに、
Claims (13)
- 医療物品(22)に添付されるデータ・キャリア(24)を読み取る医療物品追跡システム(50)であって、前記データ・キャリアは周波数f1の電磁エネルギー(EM)に応答し、それに応じて前記データ・キャリアは識別データを提供し、前記システムは 関連するデータ・キャリアが付された前記医療物品を受容する格納デバイス(180)を有するものであり、
前記システムは、
内部格納領域を有する金属製エンクロージャであって、完全に前記内部格納領域を取り囲み且つ関連するデータ・キャリアが付された複数の医療物品が内部に配置される導電性壁(160、161、166、168、170、172)を有し、共振の固有周波数f2を有し、前記固有周波数f2は、前記周波数f1と異なり且つ前記周波数f1に応答するデータ・キャリアに応答しない、金属製エンクロージャ(167)と、
前記金属製エンクロージャ内の前記金属製エンクロージャの金属製壁(160)に配置されたプローブであって、周波数f1の電磁エネルギーを前記金属製エンクロージャに注入するように構成され、前記金属製エンクロージャの前記金属製壁に関する前記プローブの位置は、前記金属製エンクロージャ内で反射した周波数f1のEMが前記プローブ位置において同相にして前記金属製エンクロージャへの電力伝達を最適化するように選択されるプローブ(162)と、
前記プローブと結合され、前記周波数f1において前記プローブのインピーダンスを前記金属製エンクロージャのインピーダンスにさらに密接に整合するように構成された能動インピーダンス整合回路(130)と、
前記金属製エンクロージャ内に配置され、前記データ・キャリアによって提供された前記一意の識別データを受信するように構成された受信アンテナ(210)と、を備えるシステム。 - 前記格納デバイス(180)は、前記金属製エンクロージャ(187)に入る、および前記金属製エンクロージャから出るように適応され、且つ関連するデータ・キャリア(24)が付された前記医療物品(22)が配置される引き出し(180)を備え、
前記金属製エンクロージャは、開口部を有し、前記引き出しは前記開口部を通じて 前記医療物品が除去可能なように、前記金属製エンクロージャの外部に移動可能になっており、
前記引き出しは、前記医療物品が入った引き出しが前記金属製エンクロージャ内にあるとき前記医療物品を完全に取り囲むように、前記引き出しが前記金属製エンクロージャ内に完全に移動したときに前記金属製エンクロージャに接触する金属製壁を有する請求項1に記載の医療物品追跡システム(50)。 - 前記引き出し(180)は、前記金属製エンクロージャ(167)の一部を形成する前記引き出しの一部を除いて、非導電性材料で構成される請求項2に記載の医療物品追跡システム(50)。
- 前記金属製エンクロージャ(167)は、前記格納デバイスに格納され関連するデータ・キャリア(24)が付された前記医療物品(22)が除去可能なように、関連するデータ・キャリア(24)が付された前記医療物品が通過する開口可能な壁部を有し、前記開口可能な壁部は、導電性であり、閉じたとき、前記格納デバイスを完全に取り囲むように、前記金属製エンクロージャの残りの部分に接触する請求項1に記載の医療物品追跡システム(50)。
- 前記受信アンテナ(210)は、前記プローブ(162)から前記格納デバイス(180)の対向側に位置する請求項1に記載の医療物品追跡システム(50)。
- 複数のプローブ(162および164)において、各プローブが前記金属製エンクロージャ(167)の壁(160)に取り付けられ、各々の前記プローブは周波数f1においてEMを各自のそれぞれの位置において前記金属製エンクロージャに注入するように構成され、前記金属製エンクロージャの前記壁に関する各プローブの位置は、前記金属製エンクロージャの一部のカバレッジに電磁界を提供するために前記金属製エンクロージャへの電力伝達を最適化するように選択され、前記プローブの前記位置は、前記プローブが周波数f1において各自のそれぞれのEMを前記金属製エンクロージャに注入して複合EM界をもたらすために順次アクティブ化されうるようにさらに選択される請求項1に記載の医療物品追跡システム(50)。
- 前記受信アンテナ(210)は、前記格納デバイス(180)の外側に配置されていることを特徴とする請求項1に記載の医療物品追跡システム(50)。
- 前記受信アンテナ(210)は、マイクロストリップパッチアンテナを備えることを特徴とする請求項7に記載の医療物品追跡システム(50)。
- 前記インピーダンス整合回路(130)は、前記格納デバイス(180)の内容が変化するとき、前記周波数f1において前記プローブのインピーダンスを前記金属製エンクロージャのインピーダンスにさらに密接に整合するように構成されていることを特徴とする請求項1に記載の医療物品追跡システム(50)。
- 前記プローブ(162)は、TE01モードにおける操作のための金属製エンクロージャ(167)内に、構成され且つ位置していることを特徴とする請求項1に記載の医療物品追跡システム(50)。
- 前記プローブ(162)は、TM01モードにおける操作のための金属製エンクロージャ(167)内に、構成され且つ位置していることを特徴とする請求項1に記載の医療物品追跡システム(50)。
- 前記プローブ(162)は、容量結合をもたらす形状に構成されていることを特徴とする請求項1に記載の医療物品追跡システム(50)。
- 前記プローブ(162)をダメージから保護するように前記プローブ上に配置される電磁的不活性カバー(182)をさらに備え、
前記格納デバイス(180)は、前記格納デバイスの操作に対する妨げ無しに前記電磁的不活性カバーが前記格納デバイスに延在するように、成形されている
ことを特徴とする請求項1に記載の医療物品追跡システム(50)。
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US12/631,861 | 2009-12-07 | ||
US12/631,861 US8384545B2 (en) | 2009-12-07 | 2009-12-07 | System and method of identifying tagged articles |
PCT/US2010/059134 WO2011071835A2 (en) | 2009-12-07 | 2010-12-06 | System and method of identifying tagged articles |
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EP (1) | EP2510479A4 (ja) |
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US8384545B2 (en) | 2013-02-26 |
US20150227699A1 (en) | 2015-08-13 |
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US11126802B2 (en) | 2021-09-21 |
US20110133905A1 (en) | 2011-06-09 |
US10658077B2 (en) | 2020-05-19 |
AU2010328405A1 (en) | 2012-06-21 |
JP2013513187A (ja) | 2013-04-18 |
EP2510479A4 (en) | 2015-05-27 |
KR20120101111A (ko) | 2012-09-12 |
US20180268929A1 (en) | 2018-09-20 |
WO2011071835A3 (en) | 2011-09-22 |
WO2011071835A2 (en) | 2011-06-16 |
US20190147991A1 (en) | 2019-05-16 |
US20200350046A1 (en) | 2020-11-05 |
US9223934B2 (en) | 2015-12-29 |
US8686859B2 (en) | 2014-04-01 |
CA2782344A1 (en) | 2011-06-16 |
US9916427B2 (en) | 2018-03-13 |
EP2510479A2 (en) | 2012-10-17 |
US20130241710A1 (en) | 2013-09-19 |
US10128001B2 (en) | 2018-11-13 |
US20160259912A1 (en) | 2016-09-08 |
AU2010328405B2 (en) | 2016-10-20 |
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