KR20080075653A - Rfid reader with multi antenna - Google Patents

Rfid reader with multi antenna Download PDF

Info

Publication number
KR20080075653A
KR20080075653A KR1020070014849A KR20070014849A KR20080075653A KR 20080075653 A KR20080075653 A KR 20080075653A KR 1020070014849 A KR1020070014849 A KR 1020070014849A KR 20070014849 A KR20070014849 A KR 20070014849A KR 20080075653 A KR20080075653 A KR 20080075653A
Authority
KR
South Korea
Prior art keywords
rfid
rfid tag
antennas
antenna
information
Prior art date
Application number
KR1020070014849A
Other languages
Korean (ko)
Inventor
권혁숙
양숙경
Original Assignee
권혁숙
양숙경
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 권혁숙, 양숙경 filed Critical 권혁숙
Priority to KR1020070014849A priority Critical patent/KR20080075653A/en
Publication of KR20080075653A publication Critical patent/KR20080075653A/en

Links

Images

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
    • G06K7/10297—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 arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
    • 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) reader having multiple antennas is provided to arrange a plurality of antennas for a single RFID engine to reduce the number of RFID engines, thereby decreasing the manufacturing cost. An RFID reader includes an antenna unit, a switch(110), an RFID engine(120), and a first radio transceiver(130). The antenna unit includes a plurality of antennas for receiving RFID tag information. The switch sequentially identifies the antennas and receives the RFID tag information. The RFID engine identifies the RFID tag information and information on the antennas receiving the RFID tag information. The first radio transceiver wirelessly transmits the information received by the RFID engine to a second radio transceiver of a server.

Description

RF Reader with multi antenna}

1 is a circuit diagram of an RFID reader with multiple antennas according to the present invention;

2 is a system configuration diagram provided with an RFID reader having a multiple antenna according to the present invention.

*** Explanation of symbols for main parts of drawing ***

100: RFID reader

110: switching unit

120: RFID engine

130: first wireless transceiver

200: RFID Tag

300: server

310: second wireless transceiver

ANT1 to ANT8: antenna

The present invention relates to an RFID reader having multiple antennas, and more particularly, to an RFID reader having multiple antennas capable of identifying RFID tag information received through multiple antennas using one RFID reader. It is about.

In general, RFID (Radio Frequency Identification) is an automatic recognition technology using a radio frequency refers to a wireless communication technology that reads or records information of a tag in a non-contact state through an antenna using a radio frequency.

An example of using such an RFID is an RFID reader, which includes an antenna for receiving RFID tag information and an RFID engine unit for identifying RFID tag information received through the antenna.

In particular, the conventional contact RFID reader is composed of an antenna for receiving the RFID tag information and the RFID engine unit for identifying it integrally.

Therefore, no matter how close the contact RFID reader is used, each antenna and the RFID engine unit are inevitably used.

Such RFID readers are widely used in various places and fields such as subway gates (aka 'gates'), large discount counters, airport customs, libraries, etc. It is uneconomical to install the RFID reader equipped with the engine unit integrally.

This is because about 90% of the production cost of the RFID reader is in the RFID engine department.

In addition, since the existing RFID reader and server are connected by wire, complex wire construction is required to apply such a system to an existing building.

 Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to provide an RFID reader with multiple antennas, which has a structure that can drastically reduce manufacturing costs by arranging and using several antennas in one RFID engine. To provide.

Another object of the present invention is to provide an RFID reader having multiple antennas having a structure capable of identifying which antenna receives RFID tag information received through a plurality of antennas.

Still another object of the present invention is to provide an RFID reader that is easy to install since the RFID tag information is wirelessly transmitted and received to the server.

The present invention for achieving the above object;

An antenna unit comprising a plurality of antennas for receiving RFID tag information wirelessly transmitted from the RFID tag; A switching unit for sequentially identifying a plurality of antennas constituting the antenna unit and receiving the RFID tag information; Sending / receiving information received from the RFID engine unit and the RFID engine unit to the second wireless transmitting and receiving unit of the server by wirelessly identifying the unique information of the RFID tag received by the switching unit and the antenna information received the unique information of the RFID tag It is a basic feature of the first radio transmitter and receiver.

Hereinafter, the features will be understood by the embodiments described in detail with reference to the accompanying drawings attached to the RFID reader having a multi-antenna according to the present invention.

At this time, Figure 1 is a circuit configuration of the RF ID reader having a multi-antenna according to the present invention, Figure 2 is a system configuration diagram provided with an RF ID reader having a multi-antenna according to the present invention.

First, according to FIG. 1, the RFID reader 100 having multiple antennas according to the present invention receives unique information for identifying the specific object from the RFID tag 200 attached to the specific object.

In this case, the RFID tag 200 is classified into an active type and a passive type according to a method of obtaining an energy source of a signal transmitted to the RFID reader 100. The active type is configured to obtain transmission energy using its own battery. It is configured to obtain the transmission energy using the signal received from the RFID reader 100. At this time, the RFID tag 200 according to the present invention is configured of a passive type.

The RFID reader 100 having multiple antennas according to the present invention for receiving the unique information of the RFID tag 200 includes a plurality of antennas ANT1 to ANT8 for receiving RFID tag information wirelessly transmitted from the RFID tag 200. And a switching unit 110 for sequentially identifying a plurality of antennas ANT1 to ANT8 constituting the antenna unit and receiving unique information of the RFID tag 100. The unique information of the RFID tag 200 received through the switching unit 110 and the unique information of the RFID tag 200 consists of an RFID engine unit 120 that identifies the received antenna (any one of ANT1 to ANT8). .

In more detail, the antenna unit emits radio waves oscillated by the RFID engine unit 120 and receives radio waves emitted from the RFID tag 200. At this time, radio waves are sequentially emitted according to the arrangement order of the plurality of antennas ANT1 to ANT8 constituting the antenna unit.

Such a plurality of antennas (ANT1 ~ ANT8) sequentially radiates the radio waves generated by the RFID engine unit 120 in accordance with the order of the antenna (ANT1 ~ ANT8) according to the operation of the switching unit 110 and at the same time a plurality of antennas ( Receives the unique information of the RFID tag 100 received from the ANT1 ~ ANT8) and transmits to the RFID engine unit 120. In this case, when the unique information of the RFID tag 200 is received through a specific antenna (for example, ANT1), the switching unit 110 receives the unique information of the RFID tag 200 and the corresponding antenna ANT1 information from the RFID engine. It is transmitted to the unit 120.

In addition, the RFID engine unit 120 wirelessly transmits the unique information of the RFID tag 100 through a first wireless transmission and reception unit 130 to a server which will be described later.

On the other hand, Figure 2 is a system configuration diagram having an RFID reader 100 having a multi-antenna according to the present invention, a plurality of antennas (ANT1) for wirelessly receiving the unique information radiated from the RFID tag 200 ANT8), a switching unit 110 for receiving the RFID tag 200 information wirelessly received by the antenna unit, and an RFID tag 200 received through the switching unit 110. RFID engine unit 120 for decoding to identify the unique information of the information and the antenna (any one of the ANT1 ~ ANT8) received the unique information of the RFID tag 200, and the RFID engine unit 120 Receives a comprehensive management by receiving the RFID reader 100 consisting of the first wireless transmission and reception unit 130 for transmitting the unique information of the RFID tag 100 wirelessly, and the decoding information of such RFID reader 100 Server 300 is made.

At this time, the server 300 receives the unique information of the RFID tag 100 transmitted from the first wireless transmitting and receiving unit 130 of the RFID reader 100 through the second wireless transmitting and receiving unit 310.

Such a system, for example, when installed in the entrance of the subway, the RFID engine unit 120 and the switching unit 110 is installed at any one entrance and the other entrances only one antenna (ANT1 ~ ANT8) is installed separately This can be solved by zooming.

Of course, the control of the LCD or LED, which is a display means for expressing a message such as the amount of money or permission to pass when a subway user moves, it is natural that the server 300 transmits and displays a signal.

In this case, the antennas ANT1 to ANT8 may install only the antennas ANT1 to ANT5 in the case of five entrances according to the characteristics of the installation place.

Hereinafter, an operation process of an RF ID reader having a multiple antenna according to the present invention will be described with reference to FIGS. 1 and 2.

When the RFID engine unit 120 generates and outputs radio waves, the switching unit 110 radiates radio waves sequentially to a plurality of antennas ANT1 to ANT8 constituting the antenna unit.

As such, when the unique information of the RFID tag 200 is received through the specific antenna ANT1 in the process of radiating the radio wave through the antennas ANT1 to ANT8, the switching unit 110 recognizes this information and the corresponding antenna ANT1 and its The unique information of the RFID tag 200 received through the antenna ANT1 is input to the RFID engine unit 120.

In this case, the RFID engine unit 120 decodes the corresponding information and transmits the identified information through the first radio transceiver 130, and the server 300 is received through the second radio transceiver 310. .

Therefore, the server 300 can collect accurate information on whether unique information of a specific RFID tag 200 has been received through an antenna of which entrance and exit.

Although the preferred embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the scope of the present invention to be substantially equivalent to the embodiment of the present invention. Various modifications can be made by those skilled in the art without departing from the scope of the present invention.

As described above, according to the present invention, by arranging and using a plurality of antennas (ANT1 to ANT8) in one RFID engine unit 120, the number of RFID engine units 120 occupying 90% or more of the manufacturing cost is significantly reduced. By reducing, there is an excellent cost saving effect.

In addition, since the RFID tag information is transmitted and received to the server wirelessly to the RFID engine, it is possible to pursue the ease of installation.

Claims (3)

An antenna unit 110 including a plurality of antennas for receiving RFID tag information wirelessly transmitted from the RFID tag 200; A switching unit 110 sequentially identifying a plurality of antennas constituting the antenna unit 110 and receiving the RFID tag 200 information; Multiple antennas, characterized in that consisting of; RFID engine unit 120 for identifying the unique information of the RFID tag 200 received by the switching unit 110 and the antenna information received the unique information of the RFID tag 200; RF ID reader equipped with. The method of claim 1, The RFID tag 200 is a RFID reader having a multiple antenna, characterized in that the passive RFID tag to radiate unique information using the radio waves radiated from the antenna unit as energy. The method of claim 1, The RFID engine unit 120 wirelessly transmits the unique information of the RFID tag 100 to the server 300 through the first wireless transmission and reception unit 130, and the server 300 has its own second radio. RF ID reader having multiple antennas, characterized in that received by the transceiver 310.
KR1020070014849A 2007-02-13 2007-02-13 Rfid reader with multi antenna KR20080075653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070014849A KR20080075653A (en) 2007-02-13 2007-02-13 Rfid reader with multi antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070014849A KR20080075653A (en) 2007-02-13 2007-02-13 Rfid reader with multi antenna

Publications (1)

Publication Number Publication Date
KR20080075653A true KR20080075653A (en) 2008-08-19

Family

ID=39879169

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070014849A KR20080075653A (en) 2007-02-13 2007-02-13 Rfid reader with multi antenna

Country Status (1)

Country Link
KR (1) KR20080075653A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9633242B2 (en) 2012-03-22 2017-04-25 Nxp B.V. Combined multifunctional RFID communication device
WO2019088327A1 (en) * 2017-10-31 2019-05-09 (주)와이엘캠퍼 Nfc reader device for simultaneously detecting plurality of tags
CN117058794A (en) * 2023-10-13 2023-11-14 广东星云开物科技股份有限公司 Vehicle control method and device, electronic equipment and shared electric vehicle system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9633242B2 (en) 2012-03-22 2017-04-25 Nxp B.V. Combined multifunctional RFID communication device
WO2019088327A1 (en) * 2017-10-31 2019-05-09 (주)와이엘캠퍼 Nfc reader device for simultaneously detecting plurality of tags
CN117058794A (en) * 2023-10-13 2023-11-14 广东星云开物科技股份有限公司 Vehicle control method and device, electronic equipment and shared electric vehicle system
CN117058794B (en) * 2023-10-13 2023-12-22 广东星云开物科技股份有限公司 Vehicle control method and device, electronic equipment and shared electric vehicle system

Similar Documents

Publication Publication Date Title
KR101597199B1 (en) Rfid portal system with rfid tags having various read ranges
US20090303007A1 (en) Multiple band rfid reader device
CN201522715U (en) Radio frequency identification reader
US20130154801A1 (en) Method and apparatus for reading radio frequency identification tags with lowest power consumption
EP2224378B1 (en) Method for switching an RFID tag from deep sleep to active mode
CN1701341A (en) Identification tag
US20090051499A1 (en) RFID System, Reader, Control, Program and Transmission Method
CN102609738A (en) RFID (radio frequency identification device) multi-antenna reader-writer
US20110090060A1 (en) Isolating RFID Reader
KR20070074016A (en) Handheld device having both barcode reader and rfid reading function, and information management system using the same
KR200412323Y1 (en) Rfid tag for expansion
US20060238306A1 (en) Combined RFID reader and RF transceiver
CN102289637A (en) Remote control apparatus using RFID and method thereof
CN201622576U (en) Wireless RF recognition device
US9236662B2 (en) Terminal including a plurality of antennas
KR20080075653A (en) Rfid reader with multi antenna
KR20100089433A (en) Electronic tag including the mode convertible function and base station device using the tag
CN103679229A (en) RFID system applied to library
FI129346B (en) Method for transferring information on an electronic price label, electronic price label and eletronic price label system
KR100773817B1 (en) RFID tag and RFID system comprising the same
KR101217015B1 (en) Multi-loop near field communication antenna having series feeding structure
CN201540583U (en) RFID smart antenna
CN201838006U (en) Electronic scanning card reader
CN211787108U (en) Multichannel RFID safety management monitoring device
CN103839021A (en) Article positioning system based on RFID and WIFI technologies

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application