TW227056B - Apparatus for the inductive high-frequency interrogation of indentification carriers - Google Patents

Apparatus for the inductive high-frequency interrogation of indentification carriers

Info

Publication number
TW227056B
TW227056B TW82106681A TW82106681A TW227056B TW 227056 B TW227056 B TW 227056B TW 82106681 A TW82106681 A TW 82106681A TW 82106681 A TW82106681 A TW 82106681A TW 227056 B TW227056 B TW 227056B
Authority
TW
Taiwan
Prior art keywords
information
antenna coils
carriers
antenna
items
Prior art date
Application number
TW82106681A
Other languages
Chinese (zh)
Inventor
Georg Plasberg
Wolfgang Kraft
Clemens Drummer
Original Assignee
Diehl Gmbh & Co
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 DE9305746U external-priority patent/DE9305746U1/en
Application filed by Diehl Gmbh & Co filed Critical Diehl Gmbh & Co
Application granted granted Critical
Publication of TW227056B publication Critical patent/TW227056B/en

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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

For interference-resistant and manipulation-resistant acquisition of the information from identification carriers (13) which are read out by way of high-frequency magnetic fields, there is provided at least one antenna carrier (12) with juxtaposed axially flat antenna coils (11) which are functionally combined together to form groups (g,u) in such a way that no immediately mutually adjacent antenna coils (11) occur in the same group (g,u). Multiplex switching-over is effected between the individual groups (g,u) with antenna coils (11) which are at a spatial distance from each other, for the transfer of the items of information from any detected identification carriers (13) to an evaluation memory (22). To avoid cross-coupling effects, the antenna coils (11) are short-circuited, with the exception of those of the group (g,u) which is just being interrogated. All antenna coils (11), even those of a plurality of antenna carriers (12) which are operated in side-by-side relationship, are actuated in phase-locked relationship with the same high frequency and all groups (g,u) involving the same geometrical association criteria are switched-over in phase-locked relationship with the same multiplex frequency in order to avoid electrical beat phenomena and magnetic field distortion effects. The items of information which are transmitted to the evaluation memory (22) and which are read out of identification carriers (13) that are just being detected are linked to a radio-supported item of real-time information (24) and possibly additionally to a random background pattern from a code generator (21) so that any subsequent attempts at manipulation can be clearly recognised on the items of information which are stored for processing.
TW82106681A 1993-04-16 1993-08-19 Apparatus for the inductive high-frequency interrogation of indentification carriers TW227056B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9305746U DE9305746U1 (en) 1992-08-01 1993-04-16 Device for inductive high-frequency interrogation of identification labels

Publications (1)

Publication Number Publication Date
TW227056B true TW227056B (en) 1994-07-21

Family

ID=6892101

Family Applications (1)

Application Number Title Priority Date Filing Date
TW82106681A TW227056B (en) 1993-04-16 1993-08-19 Apparatus for the inductive high-frequency interrogation of indentification carriers

Country Status (2)

Country Link
DE (1) DE9406081U1 (en)
TW (1) TW227056B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515363C2 (en) * 1995-05-02 1998-02-19 Gantner Electronic Gmbh Procedure for conducting pigeon races
GB2318260A (en) * 1995-08-23 1998-04-15 Atl Agricultural Technology Li Identification apparatus
GB9517258D0 (en) * 1995-08-23 1995-10-25 A T L Agricultural Technology Identification apparatus
EP0920668B1 (en) * 1996-08-21 2001-05-30 Acos Limited Identification apparatus
US8078103B2 (en) 2005-10-31 2011-12-13 Zih Corp. Multi-element RFID coupler

Also Published As

Publication number Publication date
DE9406081U1 (en) 1994-07-28

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees