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JPS57134718A - Mobile body discriminating device - Google Patents

Mobile body discriminating device

Info

Publication number
JPS57134718A
JPS57134718A JP56019920A JP1992081A JPS57134718A JP S57134718 A JPS57134718 A JP S57134718A JP 56019920 A JP56019920 A JP 56019920A JP 1992081 A JP1992081 A JP 1992081A JP S57134718 A JPS57134718 A JP S57134718A
Authority
JP
Japan
Prior art keywords
antenna
reception
mobile body
antennas
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
JP56019920A
Other languages
Japanese (ja)
Inventor
Mitsuzumi Ooyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56019920A priority Critical patent/JPS57134718A/en
Publication of JPS57134718A publication Critical patent/JPS57134718A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B61L25/045—Indicating or recording train identities using reradiating tags

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

PURPOSE:To remove an antenna system switching circuit and to increase a maximum discriminatable speed, by making the polarization planes of transmission and reception signals of ground devices perpendicular to each other. CONSTITUTION:Since a transmission antenna 23a1 and a reception antenna 23a2, and a transmission antenna 23b1 and a reception antenna 23b2 are respectively orthogonal, electromagnetic waves radiated from the antenna 23a1 are not received on the antennas 23a2 and 23b2. The same holds for the antenna 23b1. When a mobile body 21 enters between the 1st and 2nd antennas 23a, 23b, the antenna beam is interrupted and the electromagnetic waves from the antenna 23a1 enters a response device C, while those from the antenna 23b1 are reflected on the side of the mobile body 21. Since the response device C synthesizes trans mission and reception common antennas 30a, 30b at a shaping circuit 31, they are in response to any of orthogonal deflected planes.
JP56019920A 1981-02-13 1981-02-13 Mobile body discriminating device Pending JPS57134718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019920A JPS57134718A (en) 1981-02-13 1981-02-13 Mobile body discriminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019920A JPS57134718A (en) 1981-02-13 1981-02-13 Mobile body discriminating device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59088046A Division JPS59210386A (en) 1984-05-01 1984-05-01 Identifying device of moving body

Publications (1)

Publication Number Publication Date
JPS57134718A true JPS57134718A (en) 1982-08-20

Family

ID=12012652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019920A Pending JPS57134718A (en) 1981-02-13 1981-02-13 Mobile body discriminating device

Country Status (1)

Country Link
JP (1) JPS57134718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016154277A (en) * 2015-02-20 2016-08-25 株式会社東芝 Radio equipment and antenna device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016154277A (en) * 2015-02-20 2016-08-25 株式会社東芝 Radio equipment and antenna device

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