GB1376667A - Vehicle communication system - Google Patents

Vehicle communication system

Info

Publication number
GB1376667A
GB1376667A GB1761272A GB1761272A GB1376667A GB 1376667 A GB1376667 A GB 1376667A GB 1761272 A GB1761272 A GB 1761272A GB 1761272 A GB1761272 A GB 1761272A GB 1376667 A GB1376667 A GB 1376667A
Authority
GB
United Kingdom
Prior art keywords
train
transponder
april
communication system
capacitively
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
GB1761272A
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.)
British Railways Board
Original Assignee
British Railways Board
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 British Railways Board filed Critical British Railways Board
Priority to GB1761272A priority Critical patent/GB1376667A/en
Publication of GB1376667A publication Critical patent/GB1376667A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

1376667 Track apparatus BRITISH RAILWAYS BOARD 27 April 1973 [17 April 1972] 17612/72 Heading B7N [Also in Division H4] A train signals to a trackside transponder inductively and receives the response capacitively. The transponder is powered by its received signal, and sends positional information or other information to the train. A parallel pair of electrodes (3a, 3b, Fig. 1, not shown) fixed to the top of the transponder box co-operates capacitively with a parallel pair (4a, 4b) on the train, the latter driving a transformer which feeds the train-borne receiver.
GB1761272A 1973-04-27 1973-04-27 Vehicle communication system Expired GB1376667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1761272A GB1376667A (en) 1973-04-27 1973-04-27 Vehicle communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1761272A GB1376667A (en) 1973-04-27 1973-04-27 Vehicle communication system

Publications (1)

Publication Number Publication Date
GB1376667A true GB1376667A (en) 1974-12-11

Family

ID=10098192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1761272A Expired GB1376667A (en) 1973-04-27 1973-04-27 Vehicle communication system

Country Status (1)

Country Link
GB (1) GB1376667A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222902A (en) * 1988-09-16 1990-03-21 Gec General Signal Ltd Railway vehicle location system
CH703132A1 (en) * 2010-05-12 2011-11-15 Aquametro Ag Circuit for galvanic isolation of circuits.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222902A (en) * 1988-09-16 1990-03-21 Gec General Signal Ltd Railway vehicle location system
GB2222902B (en) * 1988-09-16 1992-07-22 Gec General Signal Ltd Railway vehicle location system
CH703132A1 (en) * 2010-05-12 2011-11-15 Aquametro Ag Circuit for galvanic isolation of circuits.
EP2387154A1 (en) * 2010-05-12 2011-11-16 Aquametro AG Switch for galvanic separation of electricity circuits

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee