WO2008032356A1 - Radio frequency identification ic tag reader and radio frequency identification ic tag system - Google Patents
Radio frequency identification ic tag reader and radio frequency identification ic tag system Download PDFInfo
- Publication number
- WO2008032356A1 WO2008032356A1 PCT/JP2006/317986 JP2006317986W WO2008032356A1 WO 2008032356 A1 WO2008032356 A1 WO 2008032356A1 JP 2006317986 W JP2006317986 W JP 2006317986W WO 2008032356 A1 WO2008032356 A1 WO 2008032356A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless recognition
- tag
- circuit
- signal
- electromagnetic wave
- Prior art date
Links
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
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
Definitions
- the present invention relates to a wireless recognition IC tag reader and wireless recognition IC tada system that perform wireless recognition, and belongs to a technical field for forming an economical circuit.
- Wireless recognition IC tags have superior functions to conventional barcodes in terms of readability, security, and miniaturization.
- This wireless recognition IC tag is considered to be widely spread due to economic improvement. In this case, it is necessary to easily read the wireless recognition IC tag anywhere by installing the wireless recognition IC tag reader in the portable terminal. For this purpose, a simple circuit for economically creating a wireless recognition IC tag reader is required.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2005-101892
- a reflection modulation signal is controlled by a delay element to control a wireless recognition IC tag and a radio recognition IC tag reader. The method of trying to do this simply is shown.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-49654
- two types of antenna output power are set at a predetermined time interval by setting the antenna output power of the reader power to twice the strength difference.
- Wireless recognition IC tag and wireless recognition IC tag reader is shown how to easily control! /
- Patent Document 1 Japanese Patent Application Laid-Open No. 2005-101892
- Patent Document 2 JP 2000-49654
- the present invention provides a simple circuit for mounting a wireless recognition IC tag reader on a portable terminal.
- the UHF band and 2.45 GHz band are effective frequencies for expanding the communication distance in wireless recognition IC tags.
- the receiving circuit was complicated due to the higher frequency compared to 13.56MHz and 125kHz bands. Therefore, it is necessary to simplify the circuit It was difficult to put in a portable terminal with a large circuit scale and power consumption.
- a simple circuit is advantageous in the case of a one-chip integrated circuit, but in the conventional literature, such efficiency is not shown.
- a reader for a wireless recognition IC tag processes a reflected electromagnetic wave of the wireless recognition IC tag force by a capacitor and a diode without using a complicated circuit.
- the voltage of the reflected electromagnetic wave is integrated by the combination of the capacitance and the diode.
- the reflected electromagnetic wave has different voltages depending on the signal “0” and signal “1” of the wireless recognition IC tag.
- the signal “0” and the signal “1” can be distinguished in the wireless recognition IC tag reader.
- a reader for wireless recognition IC tags can be realized with a small circuit scale.
- even weak signals can be identified.
- FIG. 1 is a drawing showing a circuit of a reader for wireless recognition IC tag of the present invention.
- FIG. 2 is a drawing showing waveforms of a reader for wireless recognition IC tag of the present invention.
- FIG. 3 is another drawing showing waveforms of the reader for wireless recognition IC tag of the present invention.
- FIG. 4 is another drawing showing a circuit of the reader for wireless recognition IC tag of the present invention.
- FIG. 5 is another drawing showing a circuit of the reader for wireless recognition IC tag of the present invention.
- FIG. 6 is a diagram showing a configuration example of a wireless recognition IC tag system of the present invention.
- FIG. 7 is a drawing showing a circuit of a wireless recognition IC tag reader studied as a premise of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 6 is a diagram showing a configuration example of the wireless recognition IC tag system of the present invention.
- the wireless recognition IC tag system of the present invention includes a wireless recognition IC tag reader including a transmission / reception circuit 602, an antenna 105 and a control circuit (first circuit) 601, a wireless recognition IC tag chip 606, and a wireless recognition IC tag antenna 605.
- a wireless recognition IC tag reader including a transmission / reception circuit 602, an antenna 105 and a control circuit (first circuit) 601, a wireless recognition IC tag chip 606, and a wireless recognition IC tag antenna 605.
- the control circuit 601 may be provided outside the wireless recognition IC tag reader in some cases.
- a control signal 112 is sent from the control circuit 601 to the transmission / reception circuit 602.
- a transmission electromagnetic wave 603 is transmitted from the antenna 105 connected to the transmission / reception circuit 602.
- the wireless recognition IC tag chip 606 is equipped with a wireless recognition IC tag antenna 605 and receives energy and signals of the transmission electromagnetic wave 603. This energy becomes operable by the internal voltage of the wireless recognition IC tag chip 606 rising by the rectifier circuit in the wireless recognition IC tag chip 606. Further, the wireless recognition IC tag chip 606 operates by the modulation signal from the transmission electromagnetic wave 603, and the internal memory circuit operates. The information in the memory is transmitted to the antenna 105 by the reflected electromagnetic wave 604 bit by bit.
- the received signal is demodulated by the transmission / reception circuit 602 and sent to the control circuit 601 through the reception signal line 113.
- This received signal is processed in the control circuit 601 and connected to a network, a personal computer, a portable terminal, etc., passed to application software, and used effectively.
- FIG. 1 is a diagram showing a circuit of a reader for a wireless recognition IC tag according to the present invention.
- the high frequency generator 101 is connected to the NOR circuit 102.
- a control signal line 112 is also connected to this NOR circuit.
- the output from the NOR circuit 102 is input to the circulator 104 as the transmission line 103.
- the circulator 104 has an antenna 105 connected to it.
- the reflected wave reception signal is output to the reception line 106.
- a reception signal on the reception line 106 is input to the first capacitor 107.
- the first capacitor 107 serves to fix the amplitude voltage of the received signal.
- the output of the first capacitor 107 is input to the first diode 108 and the second diode 109.
- This first diode 108 serves to fix the lowest level of the received signal.
- the second diode 109 has a role of transmitting energy in one direction.
- the output of the second diode 109 is connected to the second capacitor 110 !.
- the second capacitor 110 plays a role of storing energy from the second diode 109.
- the function of discharging the energy of the second capacitor in a timely manner is realized by the MOS transistor 111 serving as a switch.
- the MOS transistor 111 is controlled by the control signal line 112.
- the output of the second capacitor 110 is output as the reception signal line 113.
- FIG. 7 shows a circuit of a wireless recognition IC tag reader that performs detection at a frequency.
- the high frequency generator 101 is connected to the NOR circuit 102.
- a control signal line 112 is also connected to this NOR circuit.
- the output from the NOR circuit 102 is input to the circulator 104 as the transmission line 103.
- the circulator 104 is connected to an antenna 105, and a reflected wave reception signal from the antenna 105 is output to the reception line 106.
- the high-frequency signals on the reception line 106 and the transmission line 103 are distributed into two signals by the first two distributors 701 and the second two distributors 702, respectively.
- One of the two output signals of the first two distributors 701 is phase-shifted by the 90-degree phase shift circuit 709.
- the first detection circuit 703 detects a signal using one signal distributed into two signals by the first two distributors 701 and the second two distributors 702. Specifically, a high-speed mixer circuit is used. The output of this signal is amplified by the first amplifying circuit 704, further regenerated by the first data regenerating circuit 705 using a band pass filter or the like, and input to the OR circuit 710.
- the second detection circuit 706 detects a signal by using one signal distributed into two signals by the first two distributors 701 and the second two distributors 702.
- the difference from the first detection circuit 703 is that the signal phase-shifted by the 90-degree phase shift circuit 709 is input.
- a high-speed mixer circuit or the like is used for this circuit.
- the output of this signal is the second amplification Amplified by the circuit 707 and further reproduced by the second data reproduction circuit 708 using a band pass filter or the like and inputted to the OR circuit 710.
- the output of the OR circuit 710 is output to the reception signal line 113.
- FIG. 2 is a diagram showing waveforms of the wireless recognition IC tag reader of the present invention.
- Waveform A shows the signal on control signal line 112 in FIG.
- Waveform B shows the signal on transmission line 103 in FIG.
- Waveform C shows the signal on receive line 106 in FIG.
- Waveform D shows the signal on reception signal line 113 in FIG.
- the signal of the high frequency generator 101 is controlled by the NOR circuit 102 and a waveform like the signal B is output.
- the MOS transistor 111 is turned off after being turned on by the signal A, and the charge of the second capacitor 110 is discharged.
- Signal C is a signal of wireless recognition IC tag power, and is divided into a signal having a large signal amplitude and a signal having a small signal amplitude.
- a signal having a large signal amplitude indicates a logic “1”
- a signal having a small signal amplitude indicates a logic “0”.
- Signal D is the output of signal C integrated. This is performed by rectifying the electric charge stored in the first capacitor 107 and the first diode 108 by the second diode 109 and accumulating the electric charge in the second capacitor 110, thereby integrating the electric charge. By measuring the time taken for the voltage VI shown in FIG. 2 by the control circuit 601, it is possible to determine “1” or “0”.
- a wireless recognition IC tag reader and wireless recognition IC tag system that are economical in terms of circuit scale or power consumption can be realized. It becomes. Also, these detector circuits do not contain active elements. Therefore, stable operation can be realized. In addition, since integration is used, weak signals can be handled. Such a detection circuit can have the same configuration in the reception circuit of the wireless recognition IC tag chip 606 shown in FIG.
- the wireless recognition IC tag reader described in this embodiment uses the same circuit configuration as in FIG. 1 and uses the peak value of the received waveform of D in FIG. 1 as a means for discrimination.
- FIG. 3 is another drawing showing waveforms of the wireless recognition IC tag reader of the present invention.
- Waveform A shows the signal of control signal line 112 in FIG.
- Waveform B shows the signal on transmission line 103 in FIG.
- Waveform C shows the signal on receive line 106 in FIG.
- Waveform D shows the signal on reception signal line 113 in FIG.
- the signal of the high frequency generator 101 is controlled by the NOR circuit 102 and a waveform like the signal A is output.
- the MOS transistor 111 is turned off after being turned on by the signal A, and the charge of the second capacitor 110 is discharged.
- Signal C is a signal of radio recognition IC tag power, and is divided into a signal with a large signal amplitude and a signal with a small signal amplitude.
- a signal having a large signal amplitude indicates a logic “1”
- a signal having a small signal amplitude indicates a logic “0”.
- Signal D is the output of signal C integrated.
- FIG. 4 is another drawing showing a circuit of the reader for a wireless recognition IC tag of the present invention.
- the output of the NOR circuit 102 is returned to the input by a feedback line 401 and has a self-oscillation function.
- a control signal line 112 is also connected to the NOR circuit.
- the output from the NOR circuit 102 is input to the circulator 104 as the transmission line 103.
- the circulator 104 is connected to the antenna 105, and the reflected wave reception signal from the antenna 105 is output to the reception line 106.
- a reception signal on the reception line 106 is input to the first capacitor 107.
- the first capacitor 107 serves to fix the amplitude voltage of the received signal.
- This first capacity 10 The output of 7 is input to the first diode 108 and the second diode 109.
- This first diode 108 serves to fix the lowest level of the received signal.
- the second diode 109 has the role of transmitting energy in one direction.
- the output of the second diode 109 is connected to the second capacitor 110.
- the second capacitor 110 serves to store energy of the second diode 109 force. The function of discharging the energy of the second capacitor in a timely manner is realized by the MOS transistor 111.
- the circuit of Fig. 4 does not require a special high-frequency oscillator. This makes it possible to reduce the circuit size.
- the signal of the control signal 112 is common to the control of the second capacitor through the control of the high-frequency oscillator and the MOS transistor 111, thereby simplifying the circuit.
- the resulting waveform is the same as that shown in Figs.
- FIG. 5 is another drawing showing a circuit of the reader for wireless recognition IC tag of the present invention.
- a high frequency is generated by a high frequency generation circuit 501 using Bluetooth, and is input to the NOR circuit 102.
- a control signal line 112 is also connected to the NOR circuit.
- the output of the NOR circuit 102 is input to the circulator 104 as the transmission line 103.
- the circulator 104 is connected to an antenna 105, and a reflected wave reception signal from the antenna 105 is output to the reception line 106.
- a reception signal on the reception line 106 is input to the first capacitor 107.
- the first capacitor 107 serves to fix the amplitude voltage of the received signal.
- the output of the first capacitor 107 is input to the first diode 108 and the second diode 109.
- This first diode 108 serves to fix the lowest level of the received signal.
- the second diode 109 has a role of transmitting energy in one direction.
- the output of the second diode 109 is connected to the second capacitor 110.
- the second capacitor 110 has a role of storing energy from the second diode 109.
- the function of discharging the energy of the second capacitor in a timely manner is realized by the MOS transistor 111.
- Bluetooth is a short-range communication system operating at 2.45 GHz. This method is often adopted by mobile terminals. For this reason, it is effective to use the Bluetooth oscillation function because it can simplify the circuit sharing.
- the waveforms are the same as in Figs. Even if Bluetooth is used, other circuit configurations are different from those in the first embodiment. Not. There are various types of high-frequency oscillators, but by using Bluetooth, there is a feature that can be shared with the original Bluetooth function.
- the wireless recognition IC tag reader of the present invention is a technology that is particularly useful when applied to monophonic devices that require miniaturization, such as mobile phones and PDAs (Personal Digital Assistants).
- the present invention can be widely applied to various wireless communication devices.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06797805A EP2058955A4 (en) | 2006-09-11 | 2006-09-11 | HIGH FREQUENCY IDENTIFICATION IC LABEL READER AND HIGH FREQUENCY IC LABEL SYSTEM |
PCT/JP2006/317986 WO2008032356A1 (en) | 2006-09-11 | 2006-09-11 | Radio frequency identification ic tag reader and radio frequency identification ic tag system |
JP2008534160A JPWO2008032356A1 (ja) | 2006-09-11 | 2006-09-11 | 無線認識icタグ用リーダおよび無線認識icタグシステム |
CNA200680055650XA CN101507130A (zh) | 2006-09-11 | 2006-09-11 | 无线电识别ic标签用读取器和无线电识别ic标签*** |
US12/438,382 US20090267745A1 (en) | 2006-09-11 | 2006-09-11 | Reader for wireless identification ic tag and wireless identification ic tag system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/317986 WO2008032356A1 (en) | 2006-09-11 | 2006-09-11 | Radio frequency identification ic tag reader and radio frequency identification ic tag system |
Publications (1)
Publication Number | Publication Date |
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WO2008032356A1 true WO2008032356A1 (en) | 2008-03-20 |
Family
ID=39183430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/317986 WO2008032356A1 (en) | 2006-09-11 | 2006-09-11 | Radio frequency identification ic tag reader and radio frequency identification ic tag system |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090267745A1 (ja) |
EP (1) | EP2058955A4 (ja) |
JP (1) | JPWO2008032356A1 (ja) |
CN (1) | CN101507130A (ja) |
WO (1) | WO2008032356A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110248823A1 (en) * | 2010-04-07 | 2011-10-13 | Kristian Silberbauer | Asset identification and tracking system and method |
US10663558B2 (en) | 2015-05-22 | 2020-05-26 | Schneider Electric It Corporation | Systems and methods for detecting physical asset locations |
DE102015224831A1 (de) * | 2015-12-10 | 2017-06-14 | Robert Bosch Gmbh | Funkaktivierte Vorrichtung |
CN115193141B (zh) | 2017-08-30 | 2024-02-27 | 康明斯滤清***知识产权公司 | 用于正品过滤器识别的联锁装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000049654A (ja) | 1998-07-30 | 2000-02-18 | Nippon Avionics Co Ltd | Rfidシステム |
JP2004192288A (ja) * | 2002-12-10 | 2004-07-08 | Brother Ind Ltd | 電子クリップおよびその情報検索システム |
JP2005101892A (ja) | 2003-09-25 | 2005-04-14 | Sony Corp | 通信システム、通信装置および通信方法、記録媒体、並びにプログラム |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634256A (en) * | 1979-08-29 | 1981-04-06 | Fuji Electric Co Ltd | Data transmission system |
FR2751148B1 (fr) * | 1996-07-12 | 1998-09-18 | Inside Technologies | Demodulateur d'un signal alternatif module en amplitude recu dans une bobine par induction electromagnetique |
EP0992931B1 (en) * | 1998-10-05 | 2006-12-06 | Eidgenössische Technische Hochschule Zürich | Microwave tagging system |
US6725014B1 (en) * | 2000-08-17 | 2004-04-20 | Honeywell International, Inc. | Method and system for contention resolution in radio frequency identification systems |
BR0318410A (pt) * | 2003-07-22 | 2006-08-01 | Nokia Corp | dispositivo leitor de transponders de identificação de rádio freqüência, dispositivo eletrÈnico portátil com dispositivo leitor incorporado, e, sistema compreendendo o leitor e o dispositivo eletrÈnico portátil |
JP2005275617A (ja) * | 2004-03-23 | 2005-10-06 | Fujitsu Ltd | サービス提供支援方法 |
US7400989B2 (en) * | 2004-09-27 | 2008-07-15 | Printronix, Inc. | RFID verifier system with grade classification |
US7227469B2 (en) * | 2004-11-22 | 2007-06-05 | Sdgi Holdings, Inc. | Surgical instrument tray shipping tote identification system and methods of using same |
-
2006
- 2006-09-11 CN CNA200680055650XA patent/CN101507130A/zh active Pending
- 2006-09-11 WO PCT/JP2006/317986 patent/WO2008032356A1/ja active Application Filing
- 2006-09-11 EP EP06797805A patent/EP2058955A4/en not_active Withdrawn
- 2006-09-11 JP JP2008534160A patent/JPWO2008032356A1/ja not_active Withdrawn
- 2006-09-11 US US12/438,382 patent/US20090267745A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000049654A (ja) | 1998-07-30 | 2000-02-18 | Nippon Avionics Co Ltd | Rfidシステム |
JP2004192288A (ja) * | 2002-12-10 | 2004-07-08 | Brother Ind Ltd | 電子クリップおよびその情報検索システム |
JP2005101892A (ja) | 2003-09-25 | 2005-04-14 | Sony Corp | 通信システム、通信装置および通信方法、記録媒体、並びにプログラム |
Non-Patent Citations (1)
Title |
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See also references of EP2058955A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN101507130A (zh) | 2009-08-12 |
US20090267745A1 (en) | 2009-10-29 |
EP2058955A1 (en) | 2009-05-13 |
EP2058955A4 (en) | 2009-10-28 |
JPWO2008032356A1 (ja) | 2010-01-21 |
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