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WO2009096710A1 - Reader and tag reading method thereof - Google Patents

Reader and tag reading method thereof Download PDF

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Publication number
WO2009096710A1
WO2009096710A1 PCT/KR2009/000428 KR2009000428W WO2009096710A1 WO 2009096710 A1 WO2009096710 A1 WO 2009096710A1 KR 2009000428 W KR2009000428 W KR 2009000428W WO 2009096710 A1 WO2009096710 A1 WO 2009096710A1
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WO
WIPO (PCT)
Prior art keywords
data
tag
transceiver
distance
reader
Prior art date
Application number
PCT/KR2009/000428
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French (fr)
Korean (ko)
Inventor
In Gu Kim
Original Assignee
Bluebird Soft Co., Ltd.
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 Bluebird Soft Co., Ltd. filed Critical Bluebird Soft Co., Ltd.
Publication of WO2009096710A1 publication Critical patent/WO2009096710A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers

Definitions

  • An embodiment of the present invention relates to a reader for radio frequency identification and a tag reading method thereof, and a reader and a tag reading method for indicating a position of a read tag by indicating a distance to a tag to be read. .
  • RFID Radio Frequency Identification
  • the most common way of identifying items using RFID is to store information such as the serial number that identifies the product on the microchip attached to the antenna.
  • the chip and antenna together form an RFID transponder circuit.
  • the antenna enables a remote reader with a transceiver to communicate with the chip and allows the chip to retransmit identification information to the reader when the chip is operated by the reader to transmit information. .
  • the reader converts the radio waves returned from the RFID tag into a form that can be used by the computer.
  • the reader can obtain information identifying the product of the RFID tag, but the location of the product is unknown. In particular, if there are several RFID tags, the location of the product according to each RFID tag cannot be determined.
  • An object of the present invention is to provide a reader capable of estimating the position of a tag from the calculated distance by calculating the distance of a tag transmitting data and a method of reading the tag.
  • the position of a tag can be estimated based on the distance to the tag, and when there are a plurality of tags, the position of each tag can be estimated in the order of distance or distance.
  • FIG. 1 is an internal block diagram of a reader according to the present invention.
  • FIG. 2 is a signal flow diagram comprising a reader according to the invention.
  • FIG. 3 is a signal flow diagram comprising a reader in accordance with the present invention.
  • a reader transmits a data request signal to a tag including data, and receives a transceiver for receiving the data from the tag, and inputs a transmission and reception time of the data from the transceiver. And a timer for measuring the time required to receive the data, a processor for calculating a distance using the measured time, and a display for displaying the calculated distance.
  • the reader requests a data from a plurality of tags (TAG) to receive each data from the tags, a transceiver, a timer for receiving the order of receiving each data from the transceiver, the received A processor for sorting the respective data in order, and a display for displaying the sorted respective data.
  • TAG tags
  • the tag reading method of the reader comprises the steps of transmitting a data request signal to a tag containing data, receiving the data from the tag, measuring the time required to receive the data, the Calculating the distance using the required time, and displaying the calculated distance.
  • the tag reading method of the reader includes requesting data from a plurality of tags and receiving respective data from the tags, storing the respective data, and storing an order of receiving the respective data. Reordering the respective data in the receiving order, and displaying the reordered each data.
  • FIG. 1 is an internal block diagram of a reader according to an embodiment of the present invention.
  • the reader 10 includes a processor 100, a transceiver 110, a timer 120, and a display 130.
  • the transceiver 110 transmits a data request signal to a tag including data, and receives data output from the tag.
  • the tag includes an antenna and a microchip.
  • the tag receives a data request signal through an antenna and transmits data such as product identification information to the transceiver 110.
  • the transceiver 110 receives data such as an identification degree of a product from a tag.
  • the timer 120 receives a transmission time and / or a reception time of the data from the transceiver 110 and measures a time required to receive the data.
  • the timer 120 receives a transmission time at which the data request signal is transmitted and a reception time at which the data is received from the transceiver 110.
  • the processor 100 may receive a transmission time and / or a reception time.
  • the timer 120 may transmit a transmission and / or reception time to the processor 100, and may transmit a required time that is a difference between the two times to the processor 100.
  • the processor 100 calculates a distance by using a time required, that is, a difference between a transmission time and a reception time.
  • the distance means the distance from the transceiver 110 to the tag.
  • the time required includes the arrival time of the radio wave from the transceiver 110 to the tag, the travel time reflected from the tag, and the time required for the arithmetic processing on the microchip of the tag.
  • the time taken for arithmetic processing in the microchip of the tag is constant. Therefore, the remaining time excluding the time required for arithmetic processing is the time when the radio wave travels from the transceiver 110 to the tag.
  • the processor 100 may calculate the distance using the round trip time and the propagation speed.
  • Display 130 displays the calculated distance.
  • the display 130 may display the data received from the tag and the calculated distance. That is, the display 130 may display the distance calculated in association with identification information of the product stored in the tag.
  • FIG. 2 is a signal flow diagram comprising a reader in accordance with the present invention. See FIG. 1.
  • FIG. 2 shows an internal signal of the reader and a flow of signals between the reader and the tag.
  • the transceiver 110 requests data from the tag 150 (S210).
  • the transceiver 110 transmits a transmission time to the timer 120 (S220).
  • the tag 150 transmits data to the transceiver 110 in response to the data request signal (S230).
  • the transceiver 110 transmits the time when the data is received to the timer 120 (S240).
  • the timer 120 measures the time required using the transmission time and the reception time (S250).
  • the timer 120 transmits the measured time required to the processor 100 (S270).
  • the transceiver 110 transmits the received data to the processor 100 (S260).
  • the processor 100 calculates the distance from the transceiver 110 to the tag 150 with reference to the required time, the speed of propagation, and the operation processing time in the tag 150 (S280).
  • the processor 100 transmits the data and the calculated distance to the display 130 (S290).
  • the display 130 displays the received data and the calculated distance on the screen.
  • Signal flow is shown by representing Tag 1 (156) and Tag 2 (158) among a plurality of tags.
  • the transceiver 110 requests data from the tag 1 156 and the tag 2 158 (S310).
  • the transceiver 110 may transmit a transmission time to the timer 120 (S320).
  • the transmission time of the data request signal for each tag 156 and 158 is the same.
  • the timer 120 may not transmit the transmission time. This is because the transmission time is not necessary if the distance display is not desired. This will be described later.
  • the transceiver 110 receives data from each tag 156 and 158 (S330).
  • the transceiver 110 transmits the reception time of receiving each data to the timer 120 (S340).
  • the timer 120 may measure the time required using the transmission time and the reception time (S350).
  • the tag 150 transmits data to the transceiver 110 in response to the data request signal (S330).
  • the transceiver 110 transmits the received data to the processor 100 (S360).
  • the timer 120 transmits the measured time required or the reception time to the processor 100 (S370).
  • the processor 100 may rearrange data associated with the reception time in order of reception time with reference to the reception time (S375).
  • the reader may further include a buffer memory (not shown).
  • the processor 100 may reorder the data, for example, in the order of early arrival.
  • the processor 100 may cause the display 130 to display the data in the rearranged order (S400). In other words, the processor 100 may display the identification information of the tags in the close range.
  • the processor 100 may calculate each distance using a required time, a propagation speed, and a calculation speed in a tag (S380).
  • the distance means the distance from the transceiver 110 to each tag 156 and 158.
  • the processor 100 transmits the rearranged data or distance to the display 130 (S390).
  • the display 130 displays the received rearranged data or each distance (S400).
  • the data is rearranged using the reception time, but it may be displayed on the display in the order in which the data arrives at the transceiver 110.
  • the present invention can also be embodied as computer readable code on a computer readable recording medium.
  • the computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like.
  • the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.
  • the embodiment according to the present invention can be used in a reader and a tag reading method of the reader.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The present invention relates to a reader and a tag reading method thereof. The reader of the present invention includes a transceiver for transmitting a data request signal to a tag containing data and receiving data from the tag, a timer for taking, as an input, data transmitting and receiving time from the transceiver and measuring time consumed for receiving data, a processor for calculating a distance by using the measured time consumption, and a display for displaying the calculated distance. Whereby, the reader of the present invention is capable of estimating the position of the tag through the distance to the tag, which is an object to be read.

Description

리더기 및 그 태그 판독 방법 Reader and its tag reading method
본 발명의 실시 예는 무선 주파수 식별을 하는 리더기 및 그 태그 판독 방법에 관한 것으로, 판독 대상인 태그까지의 거리를 표시하여 판독된 태그의 위치를 추정할 수 있도록 하는 리더기 및 그 태그 판독 방법에 관한 것이다.An embodiment of the present invention relates to a reader for radio frequency identification and a tag reading method thereof, and a reader and a tag reading method for indicating a position of a read tag by indicating a distance to a tag to be read. .
자동 식별(automatic identification)이란, 기계가 용기(carton), 상자, 병 등과 같은 아이템 또는 물건들을 식별하는 것을 돕기 위해 사용되는 여러 기술에 적용되는 넓은 의미의 용어이다. 자동 식별 기술의 한 타입이 무선-주파수 식별(Radio Frequency Identification: RFID)이다. RFID를 사용하여 아이템을 식별하는 방법들 중 가장 흔한 것이 안테나에 부착되는 마이크로칩에 제품을 식별하는 시리얼 넘버 등의 정보를 저장하는 것이다. 칩과 안테나는 함께 RFID 트랜스폰더 회로(transponder circuit)를 형성한다. 안테나는, 트랜스시버(transceiver)를 구비한 원격 리더기(remote reader)가 칩과 통신할 수 있도록 하고, 정보전송을 하도록 리더기에 의해 칩이 작동될 때, 칩이 식별 정보를 리더기에 재전송할 수 있도록 한다. 리더기는, RFID 태그로부터 되돌아온 라디오파를 컴퓨터에 의해 이용될 수 있는 형태로 변환한다Automatic identification is a broad term used in various technologies used to help a machine identify items or objects, such as cartons, boxes, bottles, and the like. One type of automatic identification technology is Radio Frequency Identification (RFID). The most common way of identifying items using RFID is to store information such as the serial number that identifies the product on the microchip attached to the antenna. The chip and antenna together form an RFID transponder circuit. The antenna enables a remote reader with a transceiver to communicate with the chip and allows the chip to retransmit identification information to the reader when the chip is operated by the reader to transmit information. . The reader converts the radio waves returned from the RFID tag into a form that can be used by the computer.
리더기는 RFID 태그의 제품을 식별하는 정보를 취득할 수 있지만, 제품의 위치를 알 수 없다. 특히 RFID 태그가 여러 개인 경우 각 RFID 태그에 따른 제품의 위치를 파악할 수 없다.The reader can obtain information identifying the product of the RFID tag, but the location of the product is unknown. In particular, if there are several RFID tags, the location of the product according to each RFID tag cannot be determined.
본 발명의 목적은, 데이터를 전송한 태그의 거리를 연산하여 연산된 거리로부터 태그의 위치를 추정할 수 있는 리더기 및 그 태그 판독 방법을 제공함에 있다.An object of the present invention is to provide a reader capable of estimating the position of a tag from the calculated distance by calculating the distance of a tag transmitting data and a method of reading the tag.
본 발명에 따르면, 태그와의 거리를 통해 태그의 위치를 추정할 수 있으며, 복수의 태그가 있는 경우 거리 또는 거리 순서로 각 태그의 위치를 추정할 수 있다.According to the present invention, the position of a tag can be estimated based on the distance to the tag, and when there are a plurality of tags, the position of each tag can be estimated in the order of distance or distance.
도 1은 본 발명에 따른 리더기의 내부 블록도,1 is an internal block diagram of a reader according to the present invention;
도 2는 본 발명에 따른 리더기를 포함한 신호 흐름도, 그리고2 is a signal flow diagram comprising a reader according to the invention, and
도 3은 본 발명에 따른 리더기를 포함한 신호 흐름도이다.3 is a signal flow diagram comprising a reader in accordance with the present invention.
본 발명의 목적을 달성하기 위한 본 발명에 따른 리더기는, 데이터를 포함하는 태그에 데이터 요청 신호를 송신하여, 상기 태그로부터 상기 데이터를 수신하는 송수신기, 상기 송수신기로부터 상기 데이터의 송신 및 수신 시각을 입력받아, 상기 데이터를 수신하는데 걸리는 소요 시간을 측정하는 타이머, 상기 측정된 소요 시간을 이용하여 거리를 연산하는 프로세서, 및 상기 연산된 거리를 표시하는 디스플레이를 포함한다.In order to achieve the object of the present invention, a reader according to the present invention transmits a data request signal to a tag including data, and receives a transceiver for receiving the data from the tag, and inputs a transmission and reception time of the data from the transceiver. And a timer for measuring the time required to receive the data, a processor for calculating a distance using the measured time, and a display for displaying the calculated distance.
한편, 본 발명에 따른 리더기는 복수의 태그(TAG)에 데이터를 요청하여 상기 태그들로부터 각각의 데이터를 수신하는 송수신기, 상기 송수신기로부터 상기 각각의 데이터가 수신된 순서를 입력받는 타이머, 상기 수신된 순서에 따라 상기 각각의 데이터를 정렬하는 프로세서, 및 상기 정렬된 각각의 데이터를 표시하는 디스플레이를 포함한다.Meanwhile, the reader according to the present invention requests a data from a plurality of tags (TAG) to receive each data from the tags, a transceiver, a timer for receiving the order of receiving each data from the transceiver, the received A processor for sorting the respective data in order, and a display for displaying the sorted respective data.
또한, 본 발명에 따른 리더기의 태그 판독 방법은 데이터를 포함하는 태그에 데이터 요청 신호를 송신하는 단계, 상기 태그로부터 상기 데이터를 수신하는 단계, 상기 데이터를 수신하는데 걸리는 소요 시간을 측정하는 단계, 상기 소요 시간을 이용하여 거리를 연산하는 단계, 및 상기 연산된 거리를 표시하는 단계를 포함한다.In addition, the tag reading method of the reader according to the present invention comprises the steps of transmitting a data request signal to a tag containing data, receiving the data from the tag, measuring the time required to receive the data, the Calculating the distance using the required time, and displaying the calculated distance.
그리고 본 발명에 따른 리더기의 태그 판독 방법은 복수의 태그들에 데이터를 요청하여 상기 태그들로부터 각각의 데이터를 수신하는 단계, 상기 각 데이터를 저장하는 단계, 상기 각 데이터를 수신하는 순서를 저장하는 단계, 상기 각 데이터를 상기 수신 순서대로 재정렬하는 단계, 및 상기 재정렬된 각 데이터를 표시하는 단계를 포함한다.The tag reading method of the reader according to the present invention includes requesting data from a plurality of tags and receiving respective data from the tags, storing the respective data, and storing an order of receiving the respective data. Reordering the respective data in the receiving order, and displaying the reordered each data.
이하 도면을 참조하여 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 발명의 실시 예에 따른 리더기의 내부 블록도이다.1 is an internal block diagram of a reader according to an embodiment of the present invention.
도 1을 참조하면, 리더기(10)는 프로세서(100), 송수신기(110), 타이머(120), 및 디스플레이(130)를 포함한다.Referring to FIG. 1, the reader 10 includes a processor 100, a transceiver 110, a timer 120, and a display 130.
송수신기(110)는 데이터를 포함하는 태그에 데이터 요청 신호를 송신하여, 상기 태그로부터 출력된 데이터를 수신한다. 상기 태그는 안테나와 마이크로 칩 등을 포함한다. 태그는 안테나를 통해 데이터 요청 신호를 수신 받으며, 제품의 식별 정보 등의 데이터를 송수신기(110)에 전송할 수 있다. 송수신기(110)는 태그로부터 제품의 식별 정도 등의 데이터를 수신한다.The transceiver 110 transmits a data request signal to a tag including data, and receives data output from the tag. The tag includes an antenna and a microchip. The tag receives a data request signal through an antenna and transmits data such as product identification information to the transceiver 110. The transceiver 110 receives data such as an identification degree of a product from a tag.
타이머(120)는 송수신기(110)로부터 상기 데이터의 송신 시각 및/또는 수신 시각을 입력받아, 상기 데이터를 수신하는데 걸리는 소요 시간을 측정한다. 타이머(120)는 데이터 요청 신호가 송신되는 송신 시각과 데이터를 수신하는 수신 시각을 송수신기(110)로부터 입력 받는다. 또는 프로세서(100)로부터 송신 시각 및/또는 수신 시각을 입력 받을 수 있다. 타이머(120)는 송신 및/또는 수신 시각을 프로세서(100)에 전송할 수도 있으며, 양 시각의 차이인 소요 시간을 프로세서(100)에 전송할 수 있다.The timer 120 receives a transmission time and / or a reception time of the data from the transceiver 110 and measures a time required to receive the data. The timer 120 receives a transmission time at which the data request signal is transmitted and a reception time at which the data is received from the transceiver 110. Alternatively, the processor 100 may receive a transmission time and / or a reception time. The timer 120 may transmit a transmission and / or reception time to the processor 100, and may transmit a required time that is a difference between the two times to the processor 100.
프로세서(100)는 소요 시간 즉, 송신 시각과 수신 시각의 차이를 이용하여 거리를 연산한다. 상기 거리는 송수신기(110)에서 태그까지의 거리를 의미한다. 소요 시간은 전파가 송수신기(110)에서 태그까지 도달 시간 및 반사되어져 나오는 이동 시간, 그리고 태그의 마이크로 칩에서 연산 처리에 걸리는 시간을 포함한다. 태그의 마이크로 칩에서 연산 처리에 걸리는 시간은 일정하다. 따라서 소요 시간에서 연산 처리에 걸리는 시간을 제외한 나머지 시간은, 전파가 송수신기(110)에서 태그까지 왕복한 시간이 된다. 프로세서(100)는 이 왕복 시간과 전파 속도를 이용하여 거리를 연산할 수 있다.The processor 100 calculates a distance by using a time required, that is, a difference between a transmission time and a reception time. The distance means the distance from the transceiver 110 to the tag. The time required includes the arrival time of the radio wave from the transceiver 110 to the tag, the travel time reflected from the tag, and the time required for the arithmetic processing on the microchip of the tag. The time taken for arithmetic processing in the microchip of the tag is constant. Therefore, the remaining time excluding the time required for arithmetic processing is the time when the radio wave travels from the transceiver 110 to the tag. The processor 100 may calculate the distance using the round trip time and the propagation speed.
디스플레이(130)는 연산된 거리를 표시한다. 디스플레이(130)는 태그로부터 수신한 데이터와 연산된 거리를 표시할 수도 있다. 즉, 디스플레이(130)는 태그에 저장된 제품의 식별 정보 등과 연관하여 연산된 거리를 표시할 수 있다. Display 130 displays the calculated distance. The display 130 may display the data received from the tag and the calculated distance. That is, the display 130 may display the distance calculated in association with identification information of the product stored in the tag.
도 2는 본 발명에 따른 리더기를 포함한 신호 흐름도이다. 도 1을 참조한다.2 is a signal flow diagram comprising a reader in accordance with the present invention. See FIG. 1.
도 2를 참조하면, 리더기의 내부 신호, 및 리더기와 태그 간 신호의 흐름을 나타낸다.2 shows an internal signal of the reader and a flow of signals between the reader and the tag.
송수신기(110)는 태그(150)에 데이터를 요청한다(S210). 송수신기(110)는 송신 시각을 타이머(120)에 전송한다(S220). 태그(150)는 데이터 요청 신호에 응답하여 데이터를 송수신기(110)에 전송한다(S230). 송수신기(110)는 데이터를 수신한 시각을 타이머(120)에 전송한다(S240).The transceiver 110 requests data from the tag 150 (S210). The transceiver 110 transmits a transmission time to the timer 120 (S220). The tag 150 transmits data to the transceiver 110 in response to the data request signal (S230). The transceiver 110 transmits the time when the data is received to the timer 120 (S240).
타이머(120)는 송신 시각과 수신 시각을 이용하여 소요 시간을 측정한다(S250).The timer 120 measures the time required using the transmission time and the reception time (S250).
타이머(120)는 측정된 소요 시간을 프로세서(100)에 전송한다(S270). 송수신기(110)는 전송 받은 데이터를 프로세서(100)에 전송한다(S260).The timer 120 transmits the measured time required to the processor 100 (S270). The transceiver 110 transmits the received data to the processor 100 (S260).
프로세서(100)는 소요 시간, 전파의 속도, 및 태그(150)에서의 연산 처리 시간을 참조하여 송수신기(110)에서 태그(150)까지의 거리를 연산한다(S280). 프로세서(100)는 데이터 및 연산된 거리를 디스플레이(130)에 전송한다(S290). 디스플레이(130)는 전송 받은 데이터 및 연산된 거리를 화면에 표시한다.The processor 100 calculates the distance from the transceiver 110 to the tag 150 with reference to the required time, the speed of propagation, and the operation processing time in the tag 150 (S280). The processor 100 transmits the data and the calculated distance to the display 130 (S290). The display 130 displays the received data and the calculated distance on the screen.
도 3은 본 발명에 따른 리더기를 포함한 신호 흐름도이다. 도 1 및 도 2를 참조한다.3 is a signal flow diagram comprising a reader in accordance with the present invention. See FIGS. 1 and 2.
도 3을 참조하면, 리더기의 내부 신호, 및 리더기와 태그 간 신호의 흐름을 나타낸다. 복수의 태그 중에 태그1(156)과 태그2(158)를 대표로 하여 신호 흐름을 도시한다.Referring to FIG. 3, an internal signal of the reader and a signal flow between the reader and the tag are shown. Signal flow is shown by representing Tag 1 (156) and Tag 2 (158) among a plurality of tags.
송수신기(110)는 태그1(156) 및 태그2(158)에 데이터를 요청한다(S310). 송수신기(110)는 송신 시각을 타이머(120)에 전송할 수 있다(S320). 일반적으로 송신 신호는 방사형의 전파를 통해 전파되므로, 각 태그(156과 158)에 대한 데이터 요청 신호의 송신 시각은 동일하다. 타이머(120)는 송신 시각을 전송하지 않을 수 있다. 거리 표시를 원하지 않는 경우 송신 시각이 필요 없기 때문이다. 이에 대해서는 후술한다.The transceiver 110 requests data from the tag 1 156 and the tag 2 158 (S310). The transceiver 110 may transmit a transmission time to the timer 120 (S320). In general, since the transmission signal propagates through the radio wave, the transmission time of the data request signal for each tag 156 and 158 is the same. The timer 120 may not transmit the transmission time. This is because the transmission time is not necessary if the distance display is not desired. This will be described later.
송수신기(110)은 각 태그(156과 158)로부터 데이터를 수신 받는다(S330). 송수신기(110)는 각 데이터를 수신 받은 수신 시각을 타이머(120)에 전송한다(S340). 타이머(120)는 송신 시각 및 수신 시각을 이용하여 소요 시간을 측정할 수 있다(S350).The transceiver 110 receives data from each tag 156 and 158 (S330). The transceiver 110 transmits the reception time of receiving each data to the timer 120 (S340). The timer 120 may measure the time required using the transmission time and the reception time (S350).
태그(150)는 데이터 요청 신호에 응답하여 데이터를 송수신기(110)에 전송한다(S330). 송수신기(110)는 수신 받은 데이터를 프로세서(100)에 전송한다(S360).The tag 150 transmits data to the transceiver 110 in response to the data request signal (S330). The transceiver 110 transmits the received data to the processor 100 (S360).
타이머(120)는 측정된 소요 시간 또는 수신 시각을 프로세서(100)에 전송한다(S370).The timer 120 transmits the measured time required or the reception time to the processor 100 (S370).
프로세서(100)는 수신 시각을 참조하여, 수신 시각과 연관된 데이터를 수신 시각 순으로 재정렬 할 수 있다(S375). 이를 위해 리더기는 버퍼용 메모리(미도시)를 더 포함할 수 있다. 프로세서(100)는 데이터를 예를 들어 일찍 도착한 순서대로 재정렬할 수 있다. 프로세서(100)는 디스플레이(130)에 재정렬된 순으로 데이터를 표시하게 할 수 있다(S400). 즉 프로세서(100)는 가까운 거리에 있는 태그의 식별 정보 순으로 표시하게 할 수 있다.The processor 100 may rearrange data associated with the reception time in order of reception time with reference to the reception time (S375). To this end, the reader may further include a buffer memory (not shown). The processor 100 may reorder the data, for example, in the order of early arrival. The processor 100 may cause the display 130 to display the data in the rearranged order (S400). In other words, the processor 100 may display the identification information of the tags in the close range.
또한, 프로세서(100)는 소요 시간과 전파 속도, 태그에서의 연산 속도를 이용하여 각 거리를 연산할 수 있다(S380). 거리는 송수신기(110)에서 각 태그(156과 158)까지의 거리를 의미한다.In addition, the processor 100 may calculate each distance using a required time, a propagation speed, and a calculation speed in a tag (S380). The distance means the distance from the transceiver 110 to each tag 156 and 158.
프로세서(100)는 재정렬된 데이터나 거리를 디스플레이(130)에 전송한다(S390). 디스플레이(130)은 전송 받은 재정렬된 데이터 또는 각 거리를 표시한다(S400).The processor 100 transmits the rearranged data or distance to the display 130 (S390). The display 130 displays the received rearranged data or each distance (S400).
본 실시예에서는 수신 시각을 이용하여 데이터를 재정렬하였지만, 송수신기(110)에 데이터가 도착하는 순서에 맞추어 이를 디스플레이에서 표시하도록 할 수도 있다.In the present exemplary embodiment, the data is rearranged using the reception time, but it may be displayed on the display in the order in which the data arrives at the transceiver 110.
상기 본 발명은 또한 컴퓨터로 읽을 수 있는 기록매체에 컴퓨터가 읽을 수 있는 코드로서 구현하는 것이 가능하다. 컴퓨터가 읽을 수 있는 기록매체는 컴퓨터 시스템에 의하여 읽혀질 수 있는 데이터가 저장되는 모든 종류의 기록장치를 포함한다. 컴퓨터가 읽을 수 있는 기록매체의 예로는 ROM, RAM, CD-ROM, 자기 테이프, 플로피 디스크, 광 데이터 저장장치 등을 포함한다. 또한 컴퓨터가 읽을 수 있는 기록매체는 네트워크로 연결된 컴퓨터 시스템에 분산되어, 분산방식으로 컴퓨터가 읽을 수 있는 코드가 저장되고 실행될 수 있다. 그리고 본 발명을 구현하기 위한 기능적인(functional) 프로그램, 코드 및 코드 세그먼트들은 본 발명이 속하는 기술분야의 프로그래머들에 의해 용이하게 추론될 수 있다.The present invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.
또한, 이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 안 될 것이다.In addition, while the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.
본 발명에 따른 실시 예는 리더기 및 상기 리더기의 태그 판독 방법에 사용될 수 있다.The embodiment according to the present invention can be used in a reader and a tag reading method of the reader.

Claims (7)

  1. 데이터를 포함하는 태그에 데이터 요청 신호를 송신하여, 상기 태그로부터 상기 데이터를 수신하는 송수신기;A transceiver for transmitting a data request signal to a tag including data to receive the data from the tag;
    상기 송수신기로부터 상기 데이터의 송신 및 수신 시각을 입력받아, 상기 데이터를 수신하는데 걸리는 소요 시간을 측정하는 타이머;A timer which receives a transmission and reception time of the data from the transceiver and measures a time required to receive the data;
    상기 측정된 소요 시간을 이용하여 거리를 연산하는 프로세서; 및A processor for calculating a distance by using the measured time required; And
    상기 연산된 거리를 표시하는 디스플레이를 포함하는 리더기.And a display for displaying the calculated distance.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 연산된 거리는 상기 송수신기에서 상기 태그까지의 거리인 리더기.And the calculated distance is a distance from the transceiver to the tag.
  3. 복수의 태그에 데이터를 요청하여 상기 태그들로부터 각각의 데이터를 수신하는 송수신기;A transceiver for requesting data from a plurality of tags and receiving respective data from the tags;
    상기 송수신기로부터 상기 각각의 데이터가 수신된 순서를 입력받는 타이머;A timer for receiving an order in which the respective data are received from the transceiver;
    상기 수신된 순서에 따라 상기 각각의 데이터를 정렬하는 프로세서; 및A processor for sorting the respective data according to the received order; And
    상기 정렬된 각각의 데이터를 표시하는 디스플레이를 포함하는 리더기.And a display for displaying each of the aligned data.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 타이머는 상기 송수신기로부터 상기 각각의 데이터의 송신 및 수신 시각을 입력 받아, 상기 데이터를 수신하는데 걸리는 각각의 소요 시간을 측정하고,The timer receives the transmission and reception times of the respective data from the transceiver, and measures the time required to receive the data,
    상기 프로세서는 상기 측정된 각각의 소요 시간을 이용하여 각각의 거리를 연산하고,The processor calculates each distance using the measured time required for each,
    상기 디스플레이는 상기 연산된 각각의 거리를 표시하는 리더기.And said display displays said calculated respective distances.
  5. 제 4 항에 있어서,The method of claim 4, wherein
    상기 각각의 연산된 거리들은 상기 송수신기에서 상기 각 태그들까지의 길이인 리더기.The respective calculated distances are the length from the transceiver to the respective tags.
  6. 데이터를 포함하는 태그에 데이터 요청 신호를 송신하는 단계;Transmitting a data request signal to a tag containing data;
    상기 태그로부터 상기 데이터를 수신하는 단계;Receiving the data from the tag;
    상기 데이터를 수신하는데 걸리는 소요 시간을 측정하는 단계;Measuring a time taken to receive the data;
    상기 소요 시간을 이용하여 거리를 연산하는 단계; 및Calculating a distance using the time required; And
    상기 연산된 거리를 표시하는 단계를 포함하는 리더기의 태그 판독 방법.And displaying the calculated distance.
  7. 복수의 태그들에 데이터를 요청하여 상기 태그들로부터 각각의 데이터를 수신하는 단계;Requesting data from a plurality of tags and receiving respective data from the tags;
    상기 각 데이터를 저장하는 단계;Storing the respective data;
    상기 각 데이터를 수신하는 순서를 저장하는 단계;Storing an order of receiving each data;
    상기 각 데이터를 상기 수신 순서대로 재정렬하는 단계; 및Rearranging the data in the order of reception; And
    상기 재정렬된 각 데이터를 표시하는 단계를 포함하는 리더기의 태그 판독 방법.Displaying the rearranged data.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105723A (en) * 2004-10-04 2006-04-20 Nippon Telegr & Teleph Corp <Ntt> Radio tag position detecting system and device, and radio tag
KR20060100923A (en) * 2005-03-14 2006-09-21 삼성전자주식회사 The portable device for caching rf-id tag data and method thereof
KR20060111232A (en) * 2005-04-21 2006-10-26 강영호 System for preventing missing product using rfid-chip and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105723A (en) * 2004-10-04 2006-04-20 Nippon Telegr & Teleph Corp <Ntt> Radio tag position detecting system and device, and radio tag
KR20060100923A (en) * 2005-03-14 2006-09-21 삼성전자주식회사 The portable device for caching rf-id tag data and method thereof
KR20060111232A (en) * 2005-04-21 2006-10-26 강영호 System for preventing missing product using rfid-chip and method thereof

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