JP4522824B2 - Rfidシステム - Google Patents
Rfidシステム Download PDFInfo
- Publication number
- JP4522824B2 JP4522824B2 JP2004332351A JP2004332351A JP4522824B2 JP 4522824 B2 JP4522824 B2 JP 4522824B2 JP 2004332351 A JP2004332351 A JP 2004332351A JP 2004332351 A JP2004332351 A JP 2004332351A JP 4522824 B2 JP4522824 B2 JP 4522824B2
- Authority
- JP
- Japan
- Prior art keywords
- tag reader
- wireless communication
- time
- writer unit
- frequency band
- 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.)
- Expired - Fee Related
Links
- 230000006854 communication Effects 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 29
- 230000003252 repetitive effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 9
- 238000004590 computer program Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
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- Near-Field Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Description
8…無線通信装置
10…制御装置
11…LANケーブル
12…ハブ
Claims (2)
- 無線通信に使用する周波数帯域の分割数よりも多い個数設けられ、RFタグと無線通信を実行する無線通信装置と、
前記周波数帯域を分割して得られた分割周波数帯域を1対1の関係で割り当てる前記無線通信装置を規定時間毎に変更して、全ての前記無線通信装置に前記分割周波数帯域を順次割り当てる処理を繰り返し行う手段と、
を備え、
前記通信装置は、前記手段によって前記分割周波数帯域が割り当てられているときだけ無線通信を実行し、その無線通信には割り当てられた前記分割周波数帯域を用いることを特徴とするRFIDシステム。 - 前記手段が設けられ前記無線通信装置を制御する制御装置と、
LANケーブルを介して各前記無線通信装置と前記制御装置とを接続するハブと、
を備え、
前記ハブからLANケーブルを介して各前記無線通信装置に電力が供給されることを特徴とする請求項1記載のRFIDシステム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004332351A JP4522824B2 (ja) | 2004-11-16 | 2004-11-16 | Rfidシステム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004332351A JP4522824B2 (ja) | 2004-11-16 | 2004-11-16 | Rfidシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006148258A JP2006148258A (ja) | 2006-06-08 |
JP4522824B2 true JP4522824B2 (ja) | 2010-08-11 |
Family
ID=36627471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004332351A Expired - Fee Related JP4522824B2 (ja) | 2004-11-16 | 2004-11-16 | Rfidシステム |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4522824B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2137710B1 (en) * | 2007-03-23 | 2019-10-09 | Mojix, Inc. | Rfid systems using distributed exciter network |
JP5514707B2 (ja) * | 2010-12-10 | 2014-06-04 | 東芝テック株式会社 | 無線通信装置および無線通信方法 |
JP6003514B2 (ja) * | 2012-03-01 | 2016-10-05 | ソニー株式会社 | 情報処理装置、通信システムおよびチャンネル設定方法 |
JP5944701B2 (ja) * | 2012-03-12 | 2016-07-05 | 株式会社マトリックス | Icタグ送受信装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1155720A (ja) * | 1997-07-29 | 1999-02-26 | Matsushita Electric Ind Co Ltd | 無線通信システムの制御装置 |
JP2000138620A (ja) * | 1998-11-02 | 2000-05-16 | Nec Shizuoka Ltd | 遠隔給電方法及びシステム |
JP2001136562A (ja) * | 1999-08-09 | 2001-05-18 | Miwa Science Kenkyusho:Kk | 位置情報システムおよびその利用システム |
JP2004007523A (ja) * | 2002-03-28 | 2004-01-08 | Brother Ind Ltd | 通信システムの応答器及び質問器 |
JP2004228858A (ja) * | 2003-01-22 | 2004-08-12 | Daiden Co Ltd | 光電気変換装置 |
-
2004
- 2004-11-16 JP JP2004332351A patent/JP4522824B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1155720A (ja) * | 1997-07-29 | 1999-02-26 | Matsushita Electric Ind Co Ltd | 無線通信システムの制御装置 |
JP2000138620A (ja) * | 1998-11-02 | 2000-05-16 | Nec Shizuoka Ltd | 遠隔給電方法及びシステム |
JP2001136562A (ja) * | 1999-08-09 | 2001-05-18 | Miwa Science Kenkyusho:Kk | 位置情報システムおよびその利用システム |
JP2004007523A (ja) * | 2002-03-28 | 2004-01-08 | Brother Ind Ltd | 通信システムの応答器及び質問器 |
JP2004228858A (ja) * | 2003-01-22 | 2004-08-12 | Daiden Co Ltd | 光電気変換装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006148258A (ja) | 2006-06-08 |
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