JPS5692479A - Position detecting system of moving body - Google Patents

Position detecting system of moving body

Info

Publication number
JPS5692479A
JPS5692479A JP16968479A JP16968479A JPS5692479A JP S5692479 A JPS5692479 A JP S5692479A JP 16968479 A JP16968479 A JP 16968479A JP 16968479 A JP16968479 A JP 16968479A JP S5692479 A JPS5692479 A JP S5692479A
Authority
JP
Japan
Prior art keywords
moving body
transmission line
radio transmission
antenna
inductive radio
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
JP16968479A
Other languages
Japanese (ja)
Other versions
JPS6015028B2 (en
Inventor
Tatsu Hatta
Kazunori Ishikawa
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 Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP54169684A priority Critical patent/JPS6015028B2/en
Publication of JPS5692479A publication Critical patent/JPS5692479A/en
Publication of JPS6015028B2 publication Critical patent/JPS6015028B2/en
Expired 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
    • B61L25/026—Relative localisation, e.g. using odometer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

PURPOSE:To improve position detecting accuracy by specifying the construction of an inductive radio transmission line and an antenna. CONSTITUTION:Conductors 1-3 are spirally wound on a columnar surface 5 with deviation of every 1/3 of winding pitch P at the same and constant pitch to constitute an inductive radio transmission line 4, and the length l of a moving body mounting antenna 6 is kept at 1/2 or integer times the winding pitch P of said line 4. Then, at the time of detecting the position of the moving body by utilizing the phase difference between the positive phase voltage and reverse-phase voltage of the signal from the antenna 6 received by the 3-phase 3-conductor inductive radio transmission line 4 laid along the traveling path of the moving body, the higher harmonic components of the order of integer time of 3 and the higher harmonic components of even order are removed, and the distortions of the coupling distribution wavefrom are decreased to improve the position detection accuracy.
JP54169684A 1979-12-26 1979-12-26 How to detect the position of a moving object Expired JPS6015028B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54169684A JPS6015028B2 (en) 1979-12-26 1979-12-26 How to detect the position of a moving object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54169684A JPS6015028B2 (en) 1979-12-26 1979-12-26 How to detect the position of a moving object

Publications (2)

Publication Number Publication Date
JPS5692479A true JPS5692479A (en) 1981-07-27
JPS6015028B2 JPS6015028B2 (en) 1985-04-17

Family

ID=15890982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54169684A Expired JPS6015028B2 (en) 1979-12-26 1979-12-26 How to detect the position of a moving object

Country Status (1)

Country Link
JP (1) JPS6015028B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252944A (en) * 1985-05-02 1986-11-10 Yanmar Diesel Engine Co Ltd Automatic speed change gear
JPH0427705Y2 (en) * 1986-07-10 1992-07-03

Also Published As

Publication number Publication date
JPS6015028B2 (en) 1985-04-17

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