JPS5770472A - Position detecting ststem for moving object - Google Patents

Position detecting ststem for moving object

Info

Publication number
JPS5770472A
JPS5770472A JP55147037A JP14703780A JPS5770472A JP S5770472 A JPS5770472 A JP S5770472A JP 55147037 A JP55147037 A JP 55147037A JP 14703780 A JP14703780 A JP 14703780A JP S5770472 A JPS5770472 A JP S5770472A
Authority
JP
Japan
Prior art keywords
moving object
block
antennas
disable
parts
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
JP55147037A
Other languages
Japanese (ja)
Other versions
JPS6244619B2 (en
Inventor
Mitsuo Imai
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 JP55147037A priority Critical patent/JPS5770472A/en
Publication of JPS5770472A publication Critical patent/JPS5770472A/en
Publication of JPS6244619B2 publication Critical patent/JPS6244619B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

PURPOSE:To eliminate detection failure in boundaries between blocks by emitting signals alternately from plural antennas having prescribed internals of a moving object to plural receiving lines of different configurations of receivable parts and disable parts of each block. CONSTITUTION:The signals from the oscillator 3 of a moving object are alternately applied to antennas 41, 42 disposed at a prescribed spacing L by a selecting switch 5. The plural signal lines laid along the moving route of the moving object have receivable parts and disable parts for each block, of which the configuration sequence differs. For example, the receivable of each block of 5 pieces of receiving lines #1-#5 is defined as 1 and disable as 0, and these are set as shown in the figure. Also, these are so set that the combinations of the 1s and 0s of the respective blocks a-j differ. If there are the antennas within l of a detection disable zone 7, a signal (11100) is detected by a receiver, and the block detection is disabled, but if it is made L>l, the correct block is decided from the signal when the switch is changed over to at least either one of the antennas. Thereby, the moving object in the boundary part of the blocks is detected surely.
JP55147037A 1980-10-21 1980-10-21 Position detecting ststem for moving object Granted JPS5770472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147037A JPS5770472A (en) 1980-10-21 1980-10-21 Position detecting ststem for moving object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147037A JPS5770472A (en) 1980-10-21 1980-10-21 Position detecting ststem for moving object

Publications (2)

Publication Number Publication Date
JPS5770472A true JPS5770472A (en) 1982-04-30
JPS6244619B2 JPS6244619B2 (en) 1987-09-21

Family

ID=15421090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147037A Granted JPS5770472A (en) 1980-10-21 1980-10-21 Position detecting ststem for moving object

Country Status (1)

Country Link
JP (1) JPS5770472A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53104267A (en) * 1977-02-24 1978-09-11 Nippon Kokan Kk <Nkk> Phase detection type moving object position detecting method using crossed inductive radio lines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53104267A (en) * 1977-02-24 1978-09-11 Nippon Kokan Kk <Nkk> Phase detection type moving object position detecting method using crossed inductive radio lines

Also Published As

Publication number Publication date
JPS6244619B2 (en) 1987-09-21

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