KR20080018586A - Rfid reader with multiple reader antenna - Google Patents

Rfid reader with multiple reader antenna Download PDF

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Publication number
KR20080018586A
KR20080018586A KR1020060080922A KR20060080922A KR20080018586A KR 20080018586 A KR20080018586 A KR 20080018586A KR 1020060080922 A KR1020060080922 A KR 1020060080922A KR 20060080922 A KR20060080922 A KR 20060080922A KR 20080018586 A KR20080018586 A KR 20080018586A
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South Korea
Prior art keywords
reader
rfid
antennas
antenna
rfid tag
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KR1020060080922A
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Korean (ko)
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김현진
김남균
양윤석
유문호
유창호
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김현진
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Priority to KR1020060080922A priority Critical patent/KR20080018586A/en
Publication of KR20080018586A publication Critical patent/KR20080018586A/en

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    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10356—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 using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas

Abstract

An RFID(Radio Frequency IDentification) having multiple reader antennas is provided to connect multiple reader antennas to a single RFID reader for identifying an RFID tag by sequentially driving the reader antenna without using multiple RFID readers and reader antennas and save an expense and a space by identifying the RFID tag. A specified leader antenna is connected to a single RFID reader, and the other leader antennas are disconnected(50). The RFID reader is driven(60). A proper ID of an RFID tag is identified through electromagnetic force or electrostatic coupling between the connected reader antenna and the RFID tag(70), and is transmitted to a host computer(80). If all the reader antennas are identified, the RFID reader finishes the previous sequential processes, otherwise the RFID reader continues the processes(90).

Description

복수개의 리더 안테나를 갖는 전파식별 리더 장치 {RFID reader with multiple reader antenna}    Radio frequency identification reader device having a plurality of reader antennas {RFID reader with multiple reader antenna}

도 1은 종래 기술에 의한 단일 RFID 리더로 이루어진 시스템을 나타낸 구성도,    1 is a block diagram showing a system consisting of a single RFID reader according to the prior art,

도 2는 종래 기술에 의한 복수개의 RFID 리더로 이루어진 시스템을 나타낸 구성도,    2 is a configuration diagram showing a system consisting of a plurality of RFID readers according to the prior art;

도 3은 본 발명에 따른 단일 RFID 리더와 복수개의 리더 안테나로 이루어진 시스템을 나타낸 구성도.    3 is a block diagram showing a system consisting of a single RFID reader and a plurality of reader antennas in accordance with the present invention.

도 4는 본 발명에 따른 복수개의 리더 안테나를 순차적으로 기동하는 순서도.    4 is a flowchart sequentially starting a plurality of reader antennas according to the present invention.

본 발명은 전파식별(Radio Frequency Identification, RFID)의 리더(Reader) 장치에 관한 것으로서, 특히 복수개의 리더 안테나를 단일 RFID 리더에 연결하여 이들 리더 안테나를 순차적으로 기동하며 RFID 리더로부터 RFID 태그를 식별하는 RFID 리더 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader device for Radio Frequency Identification (RFID), and more particularly, by connecting a plurality of reader antennas to a single RFID reader to sequentially start these reader antennas and to identify RFID tags from the RFID reader. It relates to an RFID reader device.

현재, RFID는 대상을 식별하기 위해서 식별하고자 하는 대상에 RFID 태그를 부착하여 RFID 태그와 RFID 리더 사이의 전자기 내지는 정전기 커플링을 사용하여 RFID 태그의 고유 ID (identification)를 읽어내는 기술이다.Currently, RFID is a technology that reads a unique ID of an RFID tag by using an electromagnetic or electrostatic coupling between the RFID tag and the RFID reader by attaching the RFID tag to the object to be identified to identify the object.

도 1은 종래 기술에 의한 단일 RFID 리더로 이루어진 시스템을 나타낸 구성도이다. 식별하고자 하는 대상에 RFID 태그(40)가 부착되고, RFID 리더(30)에 내장되거나 혹은 별도로 연결된 리더 안테나(30)와 RFID 태그(40) 사이의 전자기 내지는 정전기 커플링을 통하여 RFID 태그(40)의 고유 ID가 RFID 리더(20)로 읽혀져 호스트 컴퓨터로(10)로 전송된다. 1 is a block diagram showing a system consisting of a single RFID reader according to the prior art. The RFID tag 40 is attached to an object to be identified, and the RFID tag 40 is provided through electromagnetic or electrostatic coupling between the RFID tag 40 and the reader antenna 30 embedded in or separately connected to the RFID reader 30. The unique ID of is read by the RFID reader 20 and transmitted to the host computer 10.

한편, RFID의 응용에 있어 리더 안테나를 기준 위치로 삼아 이 위치에 특정 대상물이 존재하는지 여부나 존재하는 대상물의 고유 ID를 식별해야 하는 경우가 있다. 이 경우, 필요한 기준 위치의 개수만큼 RFID 리더와 리더 안테나가 소요된다. 도 2는 종래 기술에 의한 복수개의 RFID 리더로 이루어진 시스템을 나타낸 구성도이다. 기준 위치에 해당하는 리더 안테나(30)와 RFID 태그(40) 사이의 전자기 내지는 정전기 커플링을 통하여 RFID 태그(40)의 고유 ID가 RFID 리더(20)를 통하여 호스트 컴퓨터(10)로 전송된다. 하지만, 이와 같이 종래 기술에 의한 복수개의 RFID 리더기로 이루어진 시스템의 경우, RFID 리더가 복수개 소요되어 비용, 공간, 자원의 낭비가 발생한다.On the other hand, in RFID applications, a reader antenna may be used as a reference position, and it may be necessary to identify whether a specific object exists or a unique ID of an existing object. In this case, RFID readers and reader antennas are needed as many reference positions as necessary. 2 is a configuration diagram showing a system consisting of a plurality of RFID readers according to the prior art. The unique ID of the RFID tag 40 is transmitted to the host computer 10 through the RFID reader 20 through an electromagnetic or electrostatic coupling between the reader antenna 30 corresponding to the reference position and the RFID tag 40. However, in the system of a plurality of RFID readers according to the prior art, a plurality of RFID readers are required, resulting in waste of cost, space, and resources.

본 발명의 목적은 상기 종래 기술의 문제점을 해결하기 위하여 식별하고자 하는 대상물이 존재할 수 있는 위치에 해당하는 복수개의 리더 안테나를 단일 RFID 리더에 연결하여 이들 리더 안테나를 순차적으로 기동하며 RFID 리더로부터 RFID 태그를 식별하는 RFID 리더 장치를 제공하는데 있다.In order to solve the problems of the prior art, an object of the present invention is to connect a plurality of reader antennas corresponding to positions where an object to be identified may exist to a single RFID reader to sequentially start the reader antennas, and to read the RFID tag from the RFID reader. To provide an RFID reader device for identifying the.

도 3은 본 발명에 따른 단일 RFID 리더와 복수개의 리더 안테나로 이루어진 시스템을 나타낸 구성도이다. 필요한 만큼의 복수개의 리더 안테나(30)가 단일 RFID 리더(30)에 연결되어 순차적으로 기동된다. 리더 안테나(30)와 RFID 태그(40) 사이의 전자기 내지는 정전기 커플링을 통하여 RFID 태그(40)의 고유 ID가 RFID 리더(20)를 통하여 호스트 컴퓨터(10)로 전송된다.3 is a block diagram showing a system consisting of a single RFID reader and a plurality of reader antennas according to the present invention. As many reader antennas 30 as necessary are connected to a single RFID reader 30 and sequentially started. The unique ID of the RFID tag 40 is transmitted to the host computer 10 via the RFID reader 20 via electromagnetic or electrostatic coupling between the reader antenna 30 and the RFID tag 40.

도 4는 본 발명에 따른 복수개의 리더 안테나를 순차적으로 기동하는 순서도이다. 먼저, 복수개의 리더 안테나(30) 중에서 해당하는 리더 안테나(30) 만을 연결하고 나머지 리더 안테나(30)들은 연결을 끊는다(50). RFID 리더(20)를 기동하여(60), 연결되어 있는 리더 안테나 (30)와 RFID 태그(40) 사이의 전자기 내지는 정전기 커플링을 통하여 RFID 태크(40)의 고유 ID가 식별되고(70), 호스트 컴퓨터(10)로 전송된다(80). 모든 리더 안테나(30)에 대해서 수행되었으면 순차적 기동을 종료하고, 아직 수행되지 않은 리더 안테나(30)가 남아있으면 다음 리더 안테나(30)에 대한 수행을 계속한다(90).4 is a flowchart of sequentially starting a plurality of reader antennas according to the present invention. First, only the corresponding reader antenna 30 is connected among the plurality of reader antennas 30, and the remaining reader antennas 30 are disconnected (50). By starting the RFID reader 20 (60), a unique ID of the RFID tag 40 is identified (70) through electromagnetic or electrostatic coupling between the connected reader antenna 30 and the RFID tag 40, Is sent to the host computer 10 (80). If all the reader antennas 30 have been performed, the sequential start is terminated, and if the reader antennas 30 which have not been performed remain, the execution of the next reader antenna 30 is continued (90).

이상 설명한 바와 같이, 본 발명은 복수개의 리더 안테나 위치에서 특정 대상물이 존재하는지 여부나 존재하는 대상물의 고유 ID를 식별하고자 하는 경우와 같이, 복수개의 RFID 리더와 복수개의 리더 안테나를 사용하는 대신 복수개의 리더 안테나를 단일 RFID 리더에 연결하고 이들 리더 안테나를 순차적으로 기동하며 RFID 리더로부터 RFID 태그를 식별하여 비용, 공간, 자원을 절약할 수 있는 효과가 있다.As described above, in the present invention, a plurality of RFID readers and a plurality of reader antennas are used instead of using a plurality of RFID readers and a plurality of reader antennas, for example, to identify whether a specific object exists at a plurality of reader antenna positions or to identify a unique ID of an existing object. By connecting reader antennas to a single RFID reader, starting these reader antennas sequentially, and identifying RFID tags from RFID readers, there is an effect of saving cost, space, and resources.

Claims (2)

RFID에 있어서, 단일 RFID 리더에 복수개의 리더 안테나를 연결하고 이들 리더 안테나들을 순차적으로 기동하며 RFID 리더로부터 RFID 태그의 ID를 식별하는 RFID.RFID, which connects a plurality of reader antennas to a single RFID reader, sequentially starts these reader antennas and identifies the ID of the RFID tag from the RFID reader. RFID를 이용하는 시스템에 있어서, 원하는 개수만큼의 기준 위치에 리더 안테나를 위치시키고 이들 리더 안테나로부터 RFID 태그를 식별하여 RFID 태그가 장착된 대상물의 존재여부나 존재하는 대상물의 고유 ID를 식별하는 RFID 시스템.A system using RFID, wherein a reader antenna is positioned at a desired number of reference positions, and RFID tags are identified from these reader antennas to identify whether an RFID tag is mounted or a unique ID of an existing object.
KR1020060080922A 2006-08-25 2006-08-25 Rfid reader with multiple reader antenna KR20080018586A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102495993A (en) * 2011-12-13 2012-06-13 江苏万佳科技开发有限公司 Multi-window multi-card sharing card reading system and operation method thereof
KR20130049491A (en) * 2011-11-04 2013-05-14 최용훈 Semiconductor and lcd substrate pr coating system
KR101274585B1 (en) * 2011-01-24 2013-06-13 한미아이티 주식회사 Position information decision apparatus of rfid tag and the method thereof
US11192055B2 (en) 2017-08-30 2021-12-07 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101274585B1 (en) * 2011-01-24 2013-06-13 한미아이티 주식회사 Position information decision apparatus of rfid tag and the method thereof
KR20130049491A (en) * 2011-11-04 2013-05-14 최용훈 Semiconductor and lcd substrate pr coating system
CN102495993A (en) * 2011-12-13 2012-06-13 江苏万佳科技开发有限公司 Multi-window multi-card sharing card reading system and operation method thereof
US11192055B2 (en) 2017-08-30 2021-12-07 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition
US11633684B2 (en) 2017-08-30 2023-04-25 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition

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