CA2148443A1 - Highway Vehicle Identification System with High Gain Antenna - Google Patents

Highway Vehicle Identification System with High Gain Antenna

Info

Publication number
CA2148443A1
CA2148443A1 CA 2148443 CA2148443A CA2148443A1 CA 2148443 A1 CA2148443 A1 CA 2148443A1 CA 2148443 CA2148443 CA 2148443 CA 2148443 A CA2148443 A CA 2148443A CA 2148443 A1 CA2148443 A1 CA 2148443A1
Authority
CA
Canada
Prior art keywords
identification system
vehicle identification
high gain
gain antenna
antenna
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.)
Granted
Application number
CA 2148443
Other languages
French (fr)
Other versions
CA2148443C (en
Inventor
William K. Brockelsby
Conrad M.B. Walker
Michael L. Hryciuk
Donald P. Gillis
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.)
Canadian National Railway Co
Original Assignee
EID Electronic Identification Systems Ltd
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 EID Electronic Identification Systems Ltd filed Critical EID Electronic Identification Systems Ltd
Priority to CA002148443A priority Critical patent/CA2148443C/en
Publication of CA2148443A1 publication Critical patent/CA2148443A1/en
Application granted granted Critical
Publication of CA2148443C publication Critical patent/CA2148443C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G06K7/10346—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 far field type, e.g. HF types or dipoles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aerials With Secondary Devices (AREA)
  • Traffic Control Systems (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

An antenna system for mounting in a roadway comprised of an electrically lossy material. The antenna system has a reflector trough shield filled with a solid dielectric. An antenna, preferably comprised of coaxial cable, is positioned in the reflector trough, which prevents electromagnetic waves radiated by the antenna from being lost into the roadway.
CA002148443A 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna Expired - Lifetime CA2148443C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002148443A CA2148443C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002030913A CA2030913C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna
CA002148443A CA2148443C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002030913A Division CA2030913C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna

Publications (2)

Publication Number Publication Date
CA2148443A1 true CA2148443A1 (en) 1992-05-28
CA2148443C CA2148443C (en) 1999-06-22

Family

ID=4146533

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002030913A Expired - Lifetime CA2030913C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna
CA002148443A Expired - Lifetime CA2148443C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002030913A Expired - Lifetime CA2030913C (en) 1990-11-27 1990-11-27 Highway vehicle identification system with high gain antenna

Country Status (1)

Country Link
CA (2) CA2030913C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353307A1 (en) * 2002-04-10 2003-10-15 Laboratoire Central Des Ponts Et Chaussees Device with transponder for vehicles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102542617B (en) * 2010-12-30 2014-07-23 北京交科公路勘察设计研究院有限公司 Path identification station arranging method of complicated road net
CN111538009B (en) * 2019-01-21 2022-09-16 杭州海康威视数字技术股份有限公司 Radar point marking method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353307A1 (en) * 2002-04-10 2003-10-15 Laboratoire Central Des Ponts Et Chaussees Device with transponder for vehicles
FR2838566A1 (en) * 2002-04-10 2003-10-17 France Etat Ponts Chaussees TRANSPONDER DEVICE FOR DIALOGUEING WITH A MOBILE ANTENNA MOUNTED ON A VEHICLE

Also Published As

Publication number Publication date
CA2030913A1 (en) 1992-05-28
CA2148443C (en) 1999-06-22
CA2030913C (en) 1995-08-08

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry