CA1089059A - Train position indicator - Google Patents

Train position indicator

Info

Publication number
CA1089059A
CA1089059A CA249,775A CA249775A CA1089059A CA 1089059 A CA1089059 A CA 1089059A CA 249775 A CA249775 A CA 249775A CA 1089059 A CA1089059 A CA 1089059A
Authority
CA
Canada
Prior art keywords
transponders
radar
coupled
inductive coupling
train
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.)
Expired
Application number
CA249,775A
Other languages
English (en)
French (fr)
Inventor
Arthur E. Brewster
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.)
ITT Canada Ltd
Original Assignee
ITT Canada 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 ITT Canada Ltd filed Critical ITT Canada Ltd
Application granted granted Critical
Publication of CA1089059A publication Critical patent/CA1089059A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S13/758—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 using a signal generator powered by the interrogation signal
    • 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
    • B61L25/026—Relative localisation, e.g. using odometer

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Radar Systems Or Details Thereof (AREA)
CA249,775A 1975-04-08 1976-04-07 Train position indicator Expired CA1089059A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1431975A GB1481494A (en) 1975-04-08 1975-04-08 Train position indicator
GB14319/75 1975-04-08

Publications (1)

Publication Number Publication Date
CA1089059A true CA1089059A (en) 1980-11-04

Family

ID=10039058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA249,775A Expired CA1089059A (en) 1975-04-08 1976-04-07 Train position indicator

Country Status (6)

Country Link
CA (1) CA1089059A (forum.php)
CH (1) CH598985A5 (forum.php)
DE (1) DE2611868A1 (forum.php)
ES (1) ES446769A1 (forum.php)
GB (1) GB1481494A (forum.php)
IT (1) IT1059598B (forum.php)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660710A5 (de) * 1982-10-26 1987-06-15 Jd Technologie Ag Einrichtung zur steuerung und signaluebertragung in foerderanlagen.
US5129605A (en) * 1990-09-17 1992-07-14 Rockwell International Corporation Rail vehicle positioning system

Also Published As

Publication number Publication date
ES446769A1 (es) 1977-10-01
CH598985A5 (forum.php) 1978-05-12
IT1059598B (it) 1982-06-21
GB1481494A (en) 1977-07-27
DE2611868A1 (de) 1976-10-21

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Legal Events

Date Code Title Description
MKEX Expiry