发明名称 |
ARTICLE MANAGEMENT SYSTEM |
摘要 |
An article management system according to the present invention includes: a reader antenna (102) including an open-type transmission line terminated in an impedance matched state; an RF tag (104) that is placed at a location that is electromagnetically coupled to the reader antenna (102) and is visible from the reader antenna (102) in a state where a management target article (105) is placed in the vicinity of the RF tag; a management target article arrangement region in which the management target article (105) is placed, the management target article arrangement region being set in a location where the management target article (105) is electromagnetically coupled to a tag antenna of the RF tag (104); and an RFID reader (103) that sends a transmitted signal to the reader antenna (102) and receives a response signal output from the tag antenna via the reader antenna (102). The presence or absence of the management target article (105) is detected by detecting a change in operating characteristics of the tag antenna due to the management target article based on a change in intensity or phase of a reflected signal from the RF tag (104). |
申请公布号 |
EP2897083(A4) |
申请公布日期 |
2016.06.29 |
申请号 |
EP20130837934 |
申请日期 |
2013.03.14 |
申请人 |
NEC CORPORATION |
发明人 |
HATTORI, WATARU;OHASHI, KEISHI |
分类号 |
G06K17/00;G06K7/10;G06Q10/08 |
主分类号 |
G06K17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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