WO2009135722A1 - Transpondeur rfid à deux interfaces - Google Patents

Transpondeur rfid à deux interfaces Download PDF

Info

Publication number
WO2009135722A1
WO2009135722A1 PCT/EP2009/053232 EP2009053232W WO2009135722A1 WO 2009135722 A1 WO2009135722 A1 WO 2009135722A1 EP 2009053232 W EP2009053232 W EP 2009053232W WO 2009135722 A1 WO2009135722 A1 WO 2009135722A1
Authority
WO
WIPO (PCT)
Prior art keywords
rfid
antenna
transponder
frequency range
receiving
Prior art date
Application number
PCT/EP2009/053232
Other languages
German (de)
English (en)
Inventor
Michael Braun
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2009135722A1 publication Critical patent/WO2009135722A1/fr

Links

Classifications

    • 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • 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
    • G06K19/0701—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 at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0707—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 at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
    • 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
    • G06K19/0724—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 the arrangement being a circuit for communicating at a plurality of frequencies, e.g. for managing time multiplexed communication over at least two antennas of different types
    • 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07767—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the first and second communication means being two different antennas types, e.g. dipole and coil type, or two antennas of the same kind but operating at different frequencies

Definitions

  • the invention relates to an RFID transponder with dual interface, a method for operating the RFID transponder with dual interface and a corresponding RFID system.
  • a conventional RFID system comprises an RFID transponder and an RFID reader with associated antenna, which is also referred to as a reader.
  • Transponders on or in the objects store data that can be read without contact and without visual contact. Depending on the execution, d. H. Depending on whether the transponder is active or passive, and depending on the frequency band transmission power used and environmental factors, the range is between a few centimeters and several kilometers.
  • the data transmission between the transponder and the reading device takes place by means of electromagnetic waves.
  • the base station continuously sends out request signals for communication, which are only answered when a corresponding transponder is located in the area of action of this base station.
  • the transponder located in the immediate vicinity of the base station reacts with a response signal. Only after receipt of a complete and valid command is a data communication between transponder and base station.
  • the transponder can now be operated synchronously or asynchronously to the base station.
  • RFID transponders are used, for example, for marking objects, such. As goods, documents and the like used.
  • the object of the present invention is therefore to provide an improvement of known RFID systems, which provide the desired functionalities and possibly rely on existing RFID systems.
  • an RFID transponder comprises a digital circuit having a control device for controlling a data communication, and a permanent memory adapted for writing and reading operations by the digital circuit. Furthermore, the RFID transponder comprises a first antenna and a first analog circuit for receiving and transmitting in a first predefinable frequency range. Furthermore, the RFID transponder has a second antenna and a second analog circuit for receiving and transmitting in a second predefinable frequency range. The first and second analog circuits are connected to the digital circuit.
  • an RFID transponder with two interfaces.
  • An interface is designed, for example, for the UHF frequency range and an interface for the HF frequency range, with both interfaces accessing the same microchip.
  • the memory is read out or written, or additionally used for authentication.
  • more than two interfaces or interfaces for other frequency ranges can be provided on the RFID transponder, depending on the requirements placed on the RFID system.
  • a significant advantage is that only a single RFID transponder is used.
  • the digital components, such as the memory which includes, among other things, the identification number, only once needed.
  • the cost of such a dual interface RFID transponder is less than the cost of the two independent RF and UHF transponders combined. It is also easier to migrate to such RFID transponders since the existing UHF infrastructure does not have to be replaced. If needed, it can be upgraded to HF for enhanced functionality.
  • wireless data communication takes place between the RFID transponder and an RFID reader such that a first or second antenna for receiving and transmitting is selected by a control device for controlling the data communication.
  • the respectively unselected first or second antenna is used for additional inductive power consumption.
  • UHF is used in HF mode to supply the RFID transponder with more energy.
  • HF is used in HF mode to supply the RFID transponder with more energy.
  • the RFID reader is set up to transmit and receive according to an RFID communication protocol in a first and a second frequency range.
  • the RFID transponder for sending and receiving of Data set according to an RFID communication protocol in a first and a second frequency range.
  • FIG. 1 shows a block diagram of an RFID transponder according to the invention
  • FIG. 2 shows a schematic representation of an RFID system
  • FIG. 3 is a block diagram of an RFID system according to the invention.
  • the RFID transponder 101 illustrated in FIG. 1 comprises a digital circuit having a control logic 102 for controlling a data communication between the RFID transponder 101 and an RFID base station. Furthermore, the digital circuit comprises a permanent memory 103, which is designed for both read and write operations. In addition, a cryptographic processor 104 is provided in the digital circuit. The cryptographic processor 104 enables the secure computation of cryptographic operations, as required, for example, for symmetric or asymmetric cryptographic methods.
  • the RFID transponder has two separate analog circuits 105, 107, which are in each case connected to the digital circuit, in particular the control logic 102.
  • the first analog circuit 105 is in particular designed to modulate or demodulate high-frequency electromagnetic carrier signals in a first frequency range.
  • the first frequency range is a UHF frequency band, with frequencies between 850-950 MHz.
  • the first analog circuit 105 is connected to a first antenna 106, which in this embodiment is designed as a dipole antenna and is used for transmitting and receiving electromagnetic signals in the UHF band is designed.
  • the second analog circuit 107 is also designed to modulate or demodulate high-frequency electromagnetic carrier signals in a second frequency range.
  • the second frequency range is an RF frequency band, with frequencies between 3-30 MHz.
  • the second analog circuit 107 is connected to a second antenna 108, which is formed in this embodiment as a transmitting and receiving coil and is designed for the RF band.
  • a device 201 shown in FIG. 2 consists of an RFID tag 202, an RFID reader 203 and a product data server 204, on which product data are stored, for example, in a product data database.
  • the RFID tag applied to a product packaging in a label is a transponder according to the invention with two antennas, two analog circuits for receiving and transmitting in a respective predefinable frequency range, as well as a digital circuit and a permanent memory. At least the digital circuit and the memory are preferably designed in the form of a microchip.
  • the RFID reader 203 generates a high-frequency electromagnetic alternating field in a first frequency band, preferably with induction coils, which illuminates the two antennas of the RFID tag. This not only transfers data but also supplies the RFID tag 202 with energy.
  • a first frequency band preferably with induction coils, which illuminates the two antennas of the RFID tag. This not only transfers data but also supplies the RFID tag 202 with energy.
  • an induction current is generated as soon as it enters the electromagnetic alternating field. This induction current is rectified, thus charging a capacitor as a short-term energy storage, which stores the data for the read operation
  • active RFID tags can also be used be used with its own power supply. With active RFID tags, a built-in battery takes over the power supply. With half-active RFID tags, the battery only takes over the supply of the microchip.
  • the thus activated microchip in the RFID tag 202 receives commands from the RFID reader 203, which modulates this into its electromagnetic alternating field.
  • the microchip generates a response and modulates the carrier signal in the first frequency range, for example by field weakening in a contactless short circuit or by reflection of the alternating field emitted by the RFID reader 203.
  • the RFID tag 202 sends its own, preferably unchangeable, serial number, other numbers such as the EPC of the product tagged with and labeled with the RFID tag 202, as well as other data retrieved from the RFID reader 203, particularly an access token.
  • the RFID reader 203 preferably contains software in the form of a microprogram which controls the actual reading process and an RFID middleware with interfaces to further EDP systems and databases, in particular to the product data database on the product data server 204.
  • processing of the RFID events that is to say querying or changing data stored on the RFID tag, querying an access token, and requesting a database query or change takes place directly through the RFID reader. It is important to emphasize that the reading and editing functions can also be implemented on separate components.
  • This exemplary embodiment exemplifies the data communication between an inventive RFID tag and RFID reader on a first frequency band. As soon as the RFID reader transmits on a second frequency band, the
  • the RFID reader in both the first and in the second frequency band sends.
  • the signals in the first frequency band are used for data communication and inductive power consumption of the RFID tag and the signals in the second frequency band only for the inductive power consumption of the RFID tag.
  • reference numeral 301 designates an RFID communication system.
  • the RFID communication system 301 includes an RFID base station 302 and an RFID transponder 303.
  • Transponders 303 are in bi-directional communication via a wireless communication link 304.
  • the communication system 301 may be formed, for example, as a so-called master-slave communication system, wherein the base station 302 z. B. as master and the transponder or the 303 z. B. each act as a slave.
  • the base station 302 comprises a control device 305, a transmitting / receiving device 306 and a transmitting / receiving antenna 307.
  • the transponder comprises a control device 308, a first and second transceiver 309, 310 and a first and second transceiver antenna 311, 312.
  • the transmitting / receiving antennas 307, 311, 312 may be formed as inductive coil antennas or as dipole antennas.
  • this control device contains a computing device (calculating unit,
  • the control of the data communication takes place respectively via the base station-side control device 305 and the transponder-side control device 308.
  • the control device 305 of the base station 302 is designed to transmit high-frequency carrier signals in the UHF and / or HF band to the antennas 311, 312 via the antenna 307 of the transponder 303 to send.
  • the controller 308 and the transceivers 309, 310 of the transponder 303 are configured to send corresponding response signals back to the base station 302 in response to the transmitted carrier signals.
  • the control devices 305, 308 can be designed, for example, as a program-controlled device, such as, for example, as a microcontroller or microprocessor, or else implemented in hardwired logic circuit, such as, for example, as FPGA or PLD.
  • controllers 305, 308 typically include memories that include a RAM memory in which, for example, memory is stored. B. calculation results are stored. Additionally or alternatively, this memory may also have an EPROM memory in which system parameters, parameters of the various communication participants, such as. As a subscriber-specific private key, a public key, a subscriber-specific certificate or the like, are stored.
  • the carrier signals are demodulated or modulated.
  • the modulation and demodulation of the carrier signals takes place, for example, in a module provided for this purpose of the control device 305, 308 or in the respective transceiver 306, 309, 310 itself.
  • the transponder 303 receives the UHF signal with the antenna 311 provided for this purpose.
  • the received UHF signal is transmitted via the reception path 313 to the control device 308 and process there tet. Accordingly, a UHF transmission signal is transmitted via the transmission path 314 from the control device 308 to the transceiver 309 and sent by the latter via the antenna 311 to the base station 302.
  • An RF signal is accordingly received and transmitted in the transponder 302 by the antenna 312 and the transceiver 310.

Abstract

Il existe pour les systèmes RFID (301) diverses normes de communication, qui correspondent en règle générale à un fonctionnement dans différentes gammes de fréquences. Étant donné que l'antenne d'un transpondeur RFID n'est conçue que pour une gamme de fréquences, il est nécessaire d'utiliser selon les besoins plusieurs transpondeurs RFID fonctionnant les uns et les autres avec des antennes adaptées à telle ou telle gamme de fréquences. L'invention concerne donc un transpondeur RFID (303) à deux interfaces (309, 310, 311, 312) conçues chacune pour la transmission de données dans une bande de fréquences déterminée.
PCT/EP2009/053232 2008-05-07 2009-03-19 Transpondeur rfid à deux interfaces WO2009135722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008022531.2 2008-05-07
DE102008022531 2008-05-07

Publications (1)

Publication Number Publication Date
WO2009135722A1 true WO2009135722A1 (fr) 2009-11-12

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PCT/EP2009/053232 WO2009135722A1 (fr) 2008-05-07 2009-03-19 Transpondeur rfid à deux interfaces

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WO (1) WO2009135722A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535847A1 (fr) * 2011-06-17 2012-12-19 Inside Secure Circuit intégré sans contact présentant des modes de fonctionnement NFC et UHF
EP3290948A1 (fr) * 2016-08-31 2018-03-07 Siemens Aktiengesellschaft Capteur et systeme de determination de position
WO2019126284A1 (fr) * 2017-12-20 2019-06-27 Hubbell Incorporated Dispositif à paroi sensible à la voix
US10938389B2 (en) 2017-12-20 2021-03-02 Hubbell Incorporated Gesture control for in-wall device

Citations (5)

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Publication number Priority date Publication date Assignee Title
WO2004015625A1 (fr) * 2002-08-08 2004-02-19 Bnc Ip Switzerland Gmbh Dispositif d'identification multifrequence
WO2004034317A2 (fr) * 2002-10-09 2004-04-22 Inside Contactless Circuit integre rfid-uhf
US20050212674A1 (en) * 2004-03-29 2005-09-29 Impinj, Inc., A Delaware Corporation RFID tag uncoupling one of its antenna ports and methods
WO2006109736A1 (fr) * 2005-04-08 2006-10-19 Matsushita Electric Industrial Co., Ltd. Dispositif mobile de communication
EP1862945A1 (fr) * 2006-06-02 2007-12-05 EM Microelectronic-Marin SA Dispositif d'identification électronique ou transpondeur muni de deux antennes accordées à des fréquences différentes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015625A1 (fr) * 2002-08-08 2004-02-19 Bnc Ip Switzerland Gmbh Dispositif d'identification multifrequence
WO2004034317A2 (fr) * 2002-10-09 2004-04-22 Inside Contactless Circuit integre rfid-uhf
US20050212674A1 (en) * 2004-03-29 2005-09-29 Impinj, Inc., A Delaware Corporation RFID tag uncoupling one of its antenna ports and methods
WO2006109736A1 (fr) * 2005-04-08 2006-10-19 Matsushita Electric Industrial Co., Ltd. Dispositif mobile de communication
US20090061768A1 (en) * 2005-04-08 2009-03-05 Matsushita Electric Industrial Co., Ltd. Mobile communication device
EP1862945A1 (fr) * 2006-06-02 2007-12-05 EM Microelectronic-Marin SA Dispositif d'identification électronique ou transpondeur muni de deux antennes accordées à des fréquences différentes

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535847A1 (fr) * 2011-06-17 2012-12-19 Inside Secure Circuit intégré sans contact présentant des modes de fonctionnement NFC et UHF
FR2976698A1 (fr) * 2011-06-17 2012-12-21 Inside Secure Circuit integre sans contact presentant des modes de fonctionnement nfc et uhf
CN102999776A (zh) * 2011-06-17 2013-03-27 英赛瑟库尔公司 具有nfc和uhf操作模式的无触点集成电路
US8914061B2 (en) 2011-06-17 2014-12-16 Inside Secure Contactless integrated circuit having NFC and UHF operating modes
EP3252674A1 (fr) * 2011-06-17 2017-12-06 Inside Secure Circuit intégré sans contact présentant des modes de fonctionnement nfc et uhf
WO2018041515A1 (fr) * 2016-08-31 2018-03-08 Siemens Aktiengesellschaft Capteur et système de détection de position
EP3290948A1 (fr) * 2016-08-31 2018-03-07 Siemens Aktiengesellschaft Capteur et systeme de determination de position
CN109642945A (zh) * 2016-08-31 2019-04-16 西门子股份公司 位置检测传感器及系统
US10802132B2 (en) 2016-08-31 2020-10-13 Siemens Aktiengesellschaft Position-sensing sensor and position-sensing system
CN109642945B (zh) * 2016-08-31 2023-01-10 西门子股份公司 位置检测传感器及系统
WO2019126284A1 (fr) * 2017-12-20 2019-06-27 Hubbell Incorporated Dispositif à paroi sensible à la voix
US10847174B2 (en) 2017-12-20 2020-11-24 Hubbell Incorporated Voice responsive in-wall device
US10938389B2 (en) 2017-12-20 2021-03-02 Hubbell Incorporated Gesture control for in-wall device
US11296695B2 (en) 2017-12-20 2022-04-05 Hubbell Incorporated Gesture control for in-wall device
US11545171B2 (en) 2017-12-20 2023-01-03 Hubbell Incorporated Voice responsive in-wall device

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