JPS57201349A - Wireless zone tracking system in train communication - Google Patents

Wireless zone tracking system in train communication

Info

Publication number
JPS57201349A
JPS57201349A JP56085574A JP8557481A JPS57201349A JP S57201349 A JPS57201349 A JP S57201349A JP 56085574 A JP56085574 A JP 56085574A JP 8557481 A JP8557481 A JP 8557481A JP S57201349 A JPS57201349 A JP S57201349A
Authority
JP
Japan
Prior art keywords
zone
station
ground
boundary
transmission
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.)
Pending
Application number
JP56085574A
Other languages
Japanese (ja)
Inventor
Kazuo Yagi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP56085574A priority Critical patent/JPS57201349A/en
Publication of JPS57201349A publication Critical patent/JPS57201349A/en
Pending 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
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

PURPOSE:To receive data sent from a moving station passing a zone boundary in a zone before the zone boundary on the ground by installing a leakage coaxial cable (LCX) overlapping the zone boundary. CONSTITUTION:In the case where a moving station 6 moves from a zone (a) in the direction of a zone (b), if the station is running in the zone (a), the station receives radio waves from the ground from an LCXa-1, and if the station moves to the zone (b), it receives from an LCX1b, and receiving is not made from an LCX1a-2 due to a band blocking filter 10. Accordingly, if the content of transmission of the zone (a) is made the same with that of the zone (b), the content of data transmission from the ground can be transmitted to the train without omission. In the case where the moving station 6 is close to the zone boundary and makes transmission, messages such as data, etc. can be transmitted to the central device 5 through LCX1a-2, a ground transmitter-receiver 2a and an approach cable 3a during the time required for zone tracking.
JP56085574A 1981-06-05 1981-06-05 Wireless zone tracking system in train communication Pending JPS57201349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56085574A JPS57201349A (en) 1981-06-05 1981-06-05 Wireless zone tracking system in train communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56085574A JPS57201349A (en) 1981-06-05 1981-06-05 Wireless zone tracking system in train communication

Publications (1)

Publication Number Publication Date
JPS57201349A true JPS57201349A (en) 1982-12-09

Family

ID=13862578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56085574A Pending JPS57201349A (en) 1981-06-05 1981-06-05 Wireless zone tracking system in train communication

Country Status (1)

Country Link
JP (1) JPS57201349A (en)

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