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WO2006108725A1 - Dispositif pour controler des conditions d'environnement et utilisation de ce dispositif - Google Patents

Dispositif pour controler des conditions d'environnement et utilisation de ce dispositif Download PDF

Info

Publication number
WO2006108725A1
WO2006108725A1 PCT/EP2006/050613 EP2006050613W WO2006108725A1 WO 2006108725 A1 WO2006108725 A1 WO 2006108725A1 EP 2006050613 W EP2006050613 W EP 2006050613W WO 2006108725 A1 WO2006108725 A1 WO 2006108725A1
Authority
WO
WIPO (PCT)
Prior art keywords
environmental conditions
resonant circuit
capacitor
change
influencing
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
PCT/EP2006/050613
Other languages
German (de)
English (en)
Inventor
Rüdiger Bertsch
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Publication of WO2006108725A1 publication Critical patent/WO2006108725A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/0716—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 a sensor or an interface to a sensor
    • G06K19/0717—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 a sensor or an interface to a sensor the sensor being capable of sensing environmental conditions such as temperature history or pressure
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 a device for monitoring environmental conditions, which has a radio-readable sensor element and which can be fastened in a simple manner on products to be monitored.
  • Dedicated gauges that have been shipped with or incorporated into the monitored products. These include so-called active RFID tags, ie a kind of identification labels with their own power supply, which can detect the desired parameters by appropriate sensors and transmit by radio.
  • active RFID tags ie a kind of identification labels with their own power supply
  • Such a device is known, for example, from the German patent application DE 101 30 991 A1.
  • the disadvantage here is, for example, that such a device, in particular for the individual monitoring of mass products is not possible or not economically reasonable.
  • the object underlying the invention is now to provide a device for monitoring environmental conditions, in which the above-mentioned disadvantages are avoided, which is as robust and reliable and their behavior or condition is already by a temporary Exceeding certain monitoring limits changes permanently.
  • the invention consists essentially of a so-called passive RFID tag, in which for generating an operating voltage, a receiving resonant circuit for high frequency energy is present and in which by exceeding certain environmental limits, a permanent detuning or deactivation is effected, so that a high-frequency excitation out no answer signal can be sent.
  • a passive RFID tag in which for generating an operating voltage, a receiving resonant circuit for high frequency energy is present and in which by exceeding certain environmental limits, a permanent detuning or deactivation is effected, so that a high-frequency excitation out no answer signal can be sent.
  • Figure 1 is an illustration of an unsuitable resonant circuit in an RFID tag
  • FIG. 2 shows a representation of a resonant circuit permanently detuned after exceeding the limit temperature in an RFID tag.
  • Passive RFIDs do not have their own power supply and, thanks to their simple design, can be used economically even for mass products.
  • the otherwise desired robustness of passive RFID tags against environmental influences is just selectively prevented by constructive measures.
  • the receiving resonant circuit is irreversibly "detuned" by the change of an environmental condition, so that the RFID tag is no longer ready to send
  • Detuning is understood as the change of the resonant frequency f Res of the resonant circuit, which is defined by an inductance L of the coil or antenna and a capacitance C of the capacitor.
  • the change of at least one environmental condition to be detected is effected according to the invention by influencing the inductance of the coil and / or the capacitance of the capacitor.
  • An advantageous possibility for influencing the inductance in this context is a change in the relative permeability and / or the capacitor a change in the relative permittivity.
  • Figures 1 and 2 show by way of example and schematically a temperature-dependent permanent change in the resonant frequency of an RFID resonant circuit due to permanent change in the dielectric contained in the resonant circuit capacitor.
  • FIG. 1 shows the structure of an unsocial resonant circuit SK1, the resonant circuit comprising an antenna coil L and a capacitor C1 connected in parallel with a porous dielectric D, which is connected via a liquid-empty capillary to a liquid container containing a liquid F1 having a temperature below contains a certain limit temperature.
  • FIG. 2 shows the structure of a detuned oscillating circuit SK2, wherein the resonant circuit again has an antenna coil L but a capacitor C2 connected in parallel with a liquid-permeated porous dielectric DF which is connected to a liquid container via a liquid-filled capillary contains a liquid F2 having a temperature above a certain limit temperature.
  • a certain desired temperature limit is, for example, by the length of the capillary K selectable.
  • the dielectric also remains trapped by the liquid at a subsequent decrease in temperature. This has the consequence that the RFID tag can no longer be read, since an energy input by excitation of the resonant circuit at its original resonant frequency fRes is no longer possible.
  • the absence of the response when reading such an RFID tag indicates that exceeding the defined temperature, e.g. an interruption of the cold chain or an overload condition of an engine has taken place.
  • the liquid can only change the relative dielectric constant between the capacitor plates or virtually cause a short circuit of the capacitor plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne essentiellement une étiquette RFID passive (SK2) présentant un circuit oscillant de réception (l1, c2) pour énergie à haute fréquence pour générer une tension de service, une désactivation ou un désaccord durable des fréquences ayant lieu en cas de dépassement de limites de conditions d'environnement déterminées de sorte qu'aucun signal de réponse ne soit plus envoyé suite à une excitation à haute fréquence. Ce dispositif permet de contrôler de façon approfondie des conditions d'environnement ou des états de fonctionnement de produits grâce à une technologie avantageuse reposant sur les étiquettes RFID passives. Une courte rupture de la chaîne du froid ou une surchauffe de courte durée d'un composant technique peut ainsi être identifiée facilement et de façon durable.
PCT/EP2006/050613 2005-04-14 2006-02-02 Dispositif pour controler des conditions d'environnement et utilisation de ce dispositif Ceased WO2006108725A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005017299.7 2005-04-14
DE200510017299 DE102005017299A1 (de) 2005-04-14 2005-04-14 Vorrichtung zur Überwachung von Umweltbedingungen und deren Verwendung

Publications (1)

Publication Number Publication Date
WO2006108725A1 true WO2006108725A1 (fr) 2006-10-19

Family

ID=36089216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/050613 Ceased WO2006108725A1 (fr) 2005-04-14 2006-02-02 Dispositif pour controler des conditions d'environnement et utilisation de ce dispositif

Country Status (2)

Country Link
DE (1) DE102005017299A1 (fr)
WO (1) WO2006108725A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007030195A1 (de) 2007-06-27 2009-01-02 Technische Universität Carolo-Wilhelmina Zu Braunschweig Vorrichtung zur Zustandsüberwachung von Bauteilen und Bauwerken
EP2028872A1 (fr) * 2007-08-24 2009-02-25 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Procédé pour la mesure à distance d'une variable physique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040723A1 (de) * 2006-08-31 2008-04-30 Siemens Ag RFID-Transponder mit Sensorelementen
DE102009005100B4 (de) * 2009-01-19 2012-06-14 Schreiner Group Gmbh & Co. Kg Transpondervorrichtung zur Speicherung von Daten, Transponderetikett und Verfahren zum Feststellen eines Zustands einer Transpondervorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003044521A1 (fr) * 2001-11-19 2003-05-30 Valtion Teknillinen Tutkimuskeskus Detecteur d'alteration rfid pour produits alimentaires et medicaments emballes
US20040061655A1 (en) * 2002-08-07 2004-04-01 Forster Ian J. Environmentally sensitive multi-frequency antenna
WO2005008578A2 (fr) * 2003-07-07 2005-01-27 Avery Dennison Corporation Dispositif rfid a caracteristiques modifiables

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003044521A1 (fr) * 2001-11-19 2003-05-30 Valtion Teknillinen Tutkimuskeskus Detecteur d'alteration rfid pour produits alimentaires et medicaments emballes
US20040061655A1 (en) * 2002-08-07 2004-04-01 Forster Ian J. Environmentally sensitive multi-frequency antenna
WO2005008578A2 (fr) * 2003-07-07 2005-01-27 Avery Dennison Corporation Dispositif rfid a caracteristiques modifiables

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007030195A1 (de) 2007-06-27 2009-01-02 Technische Universität Carolo-Wilhelmina Zu Braunschweig Vorrichtung zur Zustandsüberwachung von Bauteilen und Bauwerken
WO2009000919A3 (fr) * 2007-06-27 2009-03-05 Univ Braunschweig Tech Carolo Wilhelmina Système pour contrôler l'état de constructions
EP2028872A1 (fr) * 2007-08-24 2009-02-25 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Procédé pour la mesure à distance d'une variable physique
WO2009028936A1 (fr) * 2007-08-24 2009-03-05 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Procédé de télémesure de variable physique
US8493184B2 (en) 2007-08-24 2013-07-23 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Method for remote measuring of a physical variable

Also Published As

Publication number Publication date
DE102005017299A1 (de) 2006-10-19

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