EP2002381A1 - Disposition comprenant un objet composé au moins en partie de metal ou de metal precieux et un dispositif d'identification rfid - Google Patents

Disposition comprenant un objet composé au moins en partie de metal ou de metal precieux et un dispositif d'identification rfid

Info

Publication number
EP2002381A1
EP2002381A1 EP07702429A EP07702429A EP2002381A1 EP 2002381 A1 EP2002381 A1 EP 2002381A1 EP 07702429 A EP07702429 A EP 07702429A EP 07702429 A EP07702429 A EP 07702429A EP 2002381 A1 EP2002381 A1 EP 2002381A1
Authority
EP
European Patent Office
Prior art keywords
transponder
metal
antenna
precious metal
objects
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP07702429A
Other languages
German (de)
English (en)
Inventor
Soheil Hamedani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from DE200620003555 external-priority patent/DE202006003555U1/de
Application filed by Individual filed Critical Individual
Publication of EP2002381A1 publication Critical patent/EP2002381A1/fr
Ceased legal-status Critical Current

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
    • G06K19/07771—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 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
    • 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
    • G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
    • 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

Definitions

  • the invention relates to an assembly of at least partially made of metal and / or precious metal object and an RFID identification device that can be used in different technology areas for the identification and tracking of objects and / or their carriers.
  • the objects are insbers.um for use in security, logistics, theft protection, in the vehicle sector, and generally wherever it comes to the identification and N ach pursuit of objects, parts, assemblies, containers, etc ..
  • Examples include access cards, such as smart cards, credit cards, transponder cards, prepaid cards, entrance tickets, service plates, dog tags, but also objects such as valuables and art objects, such as jewelry, coins, unique items, etc., also technical items such as frames, vehicles and aircraft and their parts , also spare parts, weapons of all kinds, defense devices, containers, any industrial parts, etc.
  • Such objects consist of metal, precious metal, aluminum, cast aluminum, steel, sheet metal and the like.
  • Conventional access cards usually consist of a plate-shaped carrier in a rectangular shape and are made of plastic. They have, inter alia, the advantage of simple and cheaper production, low weight, lack of electrical conductivity, but on the other hand have the disadvantage that they charge electrostatically. Furthermore, there are access cards made of metal or metal coating, in particular of precious metal, which offers the user the benefits of the exclusivity of the valuable appearance and reputation, the status symbol, etc., and such access cards are used in the manner of conventional check cards.
  • Classical RFI D devices consist of a stationary or mobile reader and an electronic microchip cooperating with an antenna. Antenna and microchip form a transponder, which receives the radio waves as soon as it comes into the area of the induction field of the antenna. The antenna in turn is connected to the reader and radiates radio waves.
  • Transponders of this type can be applied as a so-called “smart labeis" from a self-adhesive film or as a sticker on a variety of objects, eg glued ..
  • Such a transponder can also be inserted as inlay in cards, labels or any other objects or incorporated RFID inlays are protected by a plastic sheath to protect them from damage.
  • Contactless smart cards operate with transponders having a microchip and antenna array and are used as check cards, access control cards, and the like. In a memory of the chip while the identification data are stored, which are read by a reader. Modern types of transponders receive energy from RF fields, store data and send it back by attenuation modulation.
  • the antenna structure of conventional transponder is designed as a conductor loop and allows inductive signal coupling.
  • data can be exchanged with a signal conditioning instrument over a distance of a few centimeters. Since the energy required by the chip can be received contactlessly via the conductor loop, such a transponder does not need its own voltage source.
  • transponders with HF conductor loops are easy for plastic access cards.
  • For access cards made of metal or equivalent electric or magnetically conductive material are induced due to the alternating magnetic flux in the metal surface eddy currents, whereby a magnetic field on the metal surface is so strongly attenuated that the data transmission of the chip of the transponder is hindered.
  • the use of a transponder with a high-frequency conductor loop directly on a metallic surface is not readily possible since eddy currents induced in the conductor loop decisively attenuate the magnetic field. This problem can be solved by arranging and orienting highly permeable materials, such as ferrites, between the conductor loop and the metal surface in order to largely eliminate eddy currents.
  • the shielding of high-frequency fields is a problem in the art, which in the case of RFID technology is determined by the geometry of the antenna structure arranged in the immediate vicinity of the metallic substrate.
  • ferrite foils are used for shielding, which are embedded in plastic and electrically isolated from each other.
  • films are provided in the region of the transponder that are made of highly permeable material and suppress the eddy currents that occur when the transponder enters a magnetic field of a corresponding reader from the electrically conductive surface in the antenna structure be generated.
  • the object of the invention is to provide an identification device in connection with different objects made of metal or of precious metal or metal parts, which has an RFI D system with a transponder, wherein the location and path of the object to be monitored or protected.
  • an arrangement of an at least partially made of conductive material such as metal or precious metal existing object and an RFID identifier is proposed in which the RFI D system on a a assigned to the reader facing or zuwendbaren point of the object are applied to the surface or embedded in the object in the form of an inlay, and are provided in the means which shields or attenuates the electrically conductive surface of the object against eddy currents induced in the conductor loop.
  • a method for tracking and locating objects of all kinds is proposed, which are at least partially made of or plated with metallic material, and in which a tracking according to the RFID technology locating device is integrated, which is characterized in that the object is made of or clad with metal or precious metal, and that a transponder is located in or on the object at an application-specific, conductive location and spaced therefrom an antenna coupled to a reader and the transponder is shielded from the conductive surface.
  • a device in which ferromagnetic particles are used for shielding a shielding layer, e.g. a substrate applied to the object is formed over a predetermined area and magnetically aligned, which comprises the antenna structure of the transponder, whereby the eddy currents generated when entering the transponder in the magnetic field of a reading device are reduced.
  • a shielding layer e.g. a substrate applied to the object is formed over a predetermined area and magnetically aligned, which comprises the antenna structure of the transponder, whereby the eddy currents generated when entering the transponder in the magnetic field of a reading device are reduced.
  • the invention furthermore relates to a tracking device with a transponder which has an electronic chip and an antenna structure which is connected to or clad with an object consisting at least partially of metal and / or precious metal, the transponder being based on an application-specific , conductive surface of the object is formed and the transponder is arranged insulated from the conductive surface.
  • the invention proposes the application of RFI D technology to objects, for example made of metal or precious metal, such as access cards, valuables, unique items, technical objects, etc., for tracking or locating these objects, the RFID system facing the object, which is at least partially made of metal or precious metal, is shielded.
  • the invention will be described below with reference to an access card made of precious metal. However, the invention relates equally to objects to be protected, unique, apparatus, vehicles or similar objects of other types whose course can be monitored or tracked.
  • the object such.
  • As an access card preferably consists entirely or partially of precious metal, for.
  • gold, silver, platinum, or comparable, particularly valuable metal such.
  • As titanium and has at any one, application-specific, electronically readable location at least one receiving location for a transponder.
  • This receiving location is designed so that the surface of the transponder is arranged approximately flush with a surface of the object, or the transponder is inserted, incorporated or embedded in a corresponding recess of the object.
  • the transponder is z. B. is designed as a self-adhesive film, which serves as a carrier for a microchip and an antenna, which may be provided to protect the transponder against mechanical damage, a sheath or cover made of plastic.
  • the antenna is for example made of a flat sheet of copper or aluminum, which is applied to a plastic film, so a double foil from which the turns are punched or cut, the spiral shape, or rectangular shape or the like.
  • the connected to the object, z. B. glued to him film as a carrier for the transponder is an insulating layer which forms the shield against the metallic material of the object, so that the formation of eddy currents is suppressed. In the case of an access card or the like.
  • At least one point of the top of the card is a gemstone, such as a diamond, embedded in the surface, which is flush with the surface and on the one hand documents the exclusivity of the card and on the other hand due Positioning at a selected location on the map provides guidance to the card user.
  • the transponder unit wirelessly receives information, processes it or returns it to the receiver.
  • the corresponding information is wirelessly supplied to interrogation stations that make appropriate controls.
  • Such devices require antenna or coil elements, e.g. on a substrate by etching, vapor deposition, stamping or the like are applied.
  • RFID systems allow the tracking of parts, assemblies and objects generally in a variety of technical fields, such as in vehicle and aircraft construction, but also in libraries, for example, to simplify the management of books and CDs.
  • sample and analysis containers can be equipped with "smart labeis", such as in the form of self-adhesive films, stickers, labels, etc., so that confusion can be avoided and prevented expensive garments are protected from counterfeiting and piracy when transponders are integrated into garments, as well as a plethora of other product areas that are manufactured as high-end brand products
  • a particular use case of RFID technology is the transponder inlays in stadiums equipped with barriers of read / write devices. The invention will be explained in conjunction with the drawing based onprivatesbeispieien. It shows:
  • Fig. 2 is a schematic representation of an access card with transponder in
  • Fig. 3 shows the access card of Fig. 2 with transponder in section along the line 1-l
  • Fig. 4 is a view of a practical embodiment of an access card according to that of Fig. 2
  • Fig. 5 shows an embodiment of a transponder with chip and antenna in
  • FIG. 6 shows a modified embodiment of a transponder in graphic
  • Transponder and Fig. 7 shows an embodiment of a shielding device of a transponder for a
  • Access card made of precious metal.
  • FIG. 1 schematically illustrates an RFID system in connection with an access card 1 made of precious metal.
  • the access card 1 has a transponder 3 receiving as a microchip in conjunction with an antenna 2 which emits radio waves.
  • the transponder 3 does not have its own power supply and is only active within the response range of the reader. The energy required to operate the transponder is generated by the reader 4 and transmitted via the connected antenna to the transponder.
  • FIGS 2 and 3 show schematically the access card 1, formed on the surface of a recess 6 shallow depth, for example, is milled, are inserted into the antenna 2 and the chip 7 of the transponder 3 on a support 8.
  • This carrier 8 in the form of a transponder inlay consists of thin paper layer or plastic film, on an electrically conductive metal foil of Alu or copper is applied.
  • the transponder antenna is usually laminated as a full-surface copper or aluminum foil on a plastic film, coated with photosensitive photoresist and after exposure in an etching bath, the corresponding areas of the antenna shape are etched.
  • a further small recess is indicated at 6 ', in which a gemstone 6 ", for example a diamond, is embedded
  • the antenna connections or bridge are denoted by 9 and the connections to the chip 7 by 10.
  • the image reproduction according to FIG Access card 1 made of precious metal in enlarged picture.
  • FIG. 5 shows the antenna windings 12, the antenna connections 9, the chip 13 and the connection connections 10 between antenna 12 and chip 13.
  • FIG. 6 is a diagrammatic representation of the image arrangement according to FIG. 5.
  • Fig. 7 shows a shielding device 15 for the transponder 3, the spatial extent of which is designed in an application-specific manner and which is carried out on an electrically conductive surface 16, e.g. is formed in the form of a plastic film or a substrate layer.
  • the film or the substrate has a plurality of fixed, high-pemeablen particles 17 in the region of the spatial extent of the antenna structure of the transponder.
  • These ferromagnetic particles are oriented to be parallel to a magnetic field induced in the antenna structure of the transponder after fixation on the foil or substrate 16 and to suppress eddy currents that occur when the transponder is inserted into the magnetic field of a corresponding reader. Between the ferromagnetic particles 17 free spaces 18 are formed, which act as air gaps.
  • the film itself is made of high permeability material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • Near-Field Transmission Systems (AREA)
  • Credit Cards Or The Like (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

La présente invention concerne une disposition comprenant un objet (1) se composant au moins partiellement de métal et/ou de métal précieux et un système RFID (2, 3), l'objet et le système RFID coopérant de sorte que le transpondeur (3) et l'antenne (2) du système RFID soient placés à un endroit de la surface de l'objet orienté ou orientable vers un appareil de lecture associé ou sont incorporés dans sa surface sous forme d'un Inlay, et des moyens (17) étant prévus qui protègent respectivement amortissent la surface électriquement conductrice de l'objet contre des courants de Foucault induits dans la boucle de conducteur (12). L'invention concerne en outre un procédé pour suivre et repérer des objets de toute sorte qui se composent au moins partiellement de métal et/ou de métal précieux ou sont plaqués de ceux-ci et dans lesquels est intégré un dispositif de repérage fonctionnant selon la technologie RFID. Pour ce faire, un transpondeur et une antenne placée à distance de ce dernier et couplée à un appareil de lecture sont disposés dans ou sur l'objet à un endroit conducteur spécifique à l'application et le transpondeur est protégé vis-à-vis de la surface conductrice.
EP07702429A 2006-03-03 2007-02-03 Disposition comprenant un objet composé au moins en partie de metal ou de metal precieux et un dispositif d'identification rfid Ceased EP2002381A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200620003555 DE202006003555U1 (de) 2006-03-03 2006-03-03 Zugangskarte
DE102006025000A DE102006025000A1 (de) 2006-03-03 2006-05-30 Aus Edelmetall bestehendes Objekt mit RFID-Identifiziervorrichtung
PCT/DE2007/000199 WO2007098728A1 (fr) 2006-03-03 2007-02-03 Disposition comprenant un objet composé au moins en partie de metal ou de metal precieux et un dispositif d'identification rfid

Publications (1)

Publication Number Publication Date
EP2002381A1 true EP2002381A1 (fr) 2008-12-17

Family

ID=38093285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07702429A Ceased EP2002381A1 (fr) 2006-03-03 2007-02-03 Disposition comprenant un objet composé au moins en partie de metal ou de metal precieux et un dispositif d'identification rfid

Country Status (7)

Country Link
US (1) US9024763B2 (fr)
EP (1) EP2002381A1 (fr)
AU (1) AU2007219574B2 (fr)
DE (1) DE102006025000A1 (fr)
EA (2) EA200870310A1 (fr)
HK (1) HK1126020A1 (fr)
WO (1) WO2007098728A1 (fr)

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Also Published As

Publication number Publication date
EA200870310A1 (ru) 2009-02-27
WO2007098728A1 (fr) 2007-09-07
HK1126020A1 (en) 2009-08-21
EA201400757A1 (ru) 2015-01-30
US9024763B2 (en) 2015-05-05
DE102006025000A1 (de) 2007-09-06
AU2007219574B2 (en) 2012-11-15
US20090015431A1 (en) 2009-01-15
AU2007219574A1 (en) 2007-09-07

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