JPS57149909A - Detector for position on sea - Google Patents

Detector for position on sea

Info

Publication number
JPS57149909A
JPS57149909A JP3520781A JP3520781A JPS57149909A JP S57149909 A JPS57149909 A JP S57149909A JP 3520781 A JP3520781 A JP 3520781A JP 3520781 A JP3520781 A JP 3520781A JP S57149909 A JPS57149909 A JP S57149909A
Authority
JP
Japan
Prior art keywords
ship
sea
wide range
ultrasonic pulse
emitted perpendicularly
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
JP3520781A
Other languages
Japanese (ja)
Inventor
Yasuo Koyanagi
Katsuhiko Shimada
Takeo Yamada
Hiroyuki Hojo
Hidekazu Horigome
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP3520781A priority Critical patent/JPS57149909A/en
Publication of JPS57149909A publication Critical patent/JPS57149909A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

PURPOSE:To easily position a working ship over a wide range by extracting horizontal scanning picture information obtained by the reflected wave of an ultrasonic pulse emitted perpendicularly to a position reference streak body laid on the bottom of the sea. CONSTITUTION:While an ultrasonic pulse signal is emitted perpendicularly from a sounding machine 6 including an ultrasonic wave transmitter and receiver, a ship is moved to measure the position of a rail 5 laid previously on the bottom of the sea, thereby measuring the position of the ship. consequently, the wide range positioning of the working ship is facilitated.
JP3520781A 1981-03-13 1981-03-13 Detector for position on sea Pending JPS57149909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3520781A JPS57149909A (en) 1981-03-13 1981-03-13 Detector for position on sea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3520781A JPS57149909A (en) 1981-03-13 1981-03-13 Detector for position on sea

Publications (1)

Publication Number Publication Date
JPS57149909A true JPS57149909A (en) 1982-09-16

Family

ID=12435401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3520781A Pending JPS57149909A (en) 1981-03-13 1981-03-13 Detector for position on sea

Country Status (1)

Country Link
JP (1) JPS57149909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012908C2 (en) * 1999-08-25 2001-03-08 Qontour B V Measuring geometry of underwater body, e.g. sea bed, by calibrating with measuring body with known geometry introduced to measuring location

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012908C2 (en) * 1999-08-25 2001-03-08 Qontour B V Measuring geometry of underwater body, e.g. sea bed, by calibrating with measuring body with known geometry introduced to measuring location

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