JPS577575A - Apparatus for detecting movement of ship or offshore structure from anchorage position - Google Patents

Apparatus for detecting movement of ship or offshore structure from anchorage position

Info

Publication number
JPS577575A
JPS577575A JP8103480A JP8103480A JPS577575A JP S577575 A JPS577575 A JP S577575A JP 8103480 A JP8103480 A JP 8103480A JP 8103480 A JP8103480 A JP 8103480A JP S577575 A JPS577575 A JP S577575A
Authority
JP
Japan
Prior art keywords
ship
movement
receiver
ultrasonic transmitter
offshore structure
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
JP8103480A
Other languages
Japanese (ja)
Other versions
JPS6218025B2 (en
Inventor
Takashi Yoshimoto
Toshio So
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Priority to JP8103480A priority Critical patent/JPS577575A/en
Publication of JPS577575A publication Critical patent/JPS577575A/en
Publication of JPS6218025B2 publication Critical patent/JPS6218025B2/ja
Granted 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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To provide a less-expensive apparatus for detecting dangerous movement of ship or offshore structure from anchorage position, wherein the distance of movement of the ship or the offshore structure from the anchorage position is measured by means of ultrsonic wave transmitter and receiver using the anchorage position as the reference position, and an alarm is generated when the amount of movement exceeds a predetermined warning value. CONSTITUTION:A ship or an offshore structure (referred to as ''ship'') is provided at its portion B with an ultrasonic transmitter/receiver unit 1 directed in either the fore (bow) or aft. (stern) of the shop and another ultrasonic transmitter/receiver 2 directed to the left or right direction. The ship is provided also at its portion C with a still another ultrasonic transmitter/receiver unit which is directed either in the left or right direction perpendicular to the longitudinal axis of the hull. All of the ultrasonic transmitter/receiver units 1.2 and 3 are adapted to transmit and receive ultrasonic waves to and from the sea bottom at predetermined angles. The signal transmitted from and received by the ultrasonic transmitter/receiver units 1, 2 and 3 are delivered to a Dopper sonic wave velocity meters 4-6 which are adapted to measure the velocities of the ship making use of frequency change due to Doppler effect. The velocities thus measured are integrated by integration units 7-9 into the distance of movement in each direction. The distances of movements in three directions thus obtained are compared with respective set values in a comparator 11. An alarm is generated automatically when one of the set values is exceeded by the measured distance of movement. It is thus possible to obtain an apparatus at a low cost.
JP8103480A 1980-06-16 1980-06-16 Apparatus for detecting movement of ship or offshore structure from anchorage position Granted JPS577575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8103480A JPS577575A (en) 1980-06-16 1980-06-16 Apparatus for detecting movement of ship or offshore structure from anchorage position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8103480A JPS577575A (en) 1980-06-16 1980-06-16 Apparatus for detecting movement of ship or offshore structure from anchorage position

Publications (2)

Publication Number Publication Date
JPS577575A true JPS577575A (en) 1982-01-14
JPS6218025B2 JPS6218025B2 (en) 1987-04-21

Family

ID=13735166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8103480A Granted JPS577575A (en) 1980-06-16 1980-06-16 Apparatus for detecting movement of ship or offshore structure from anchorage position

Country Status (1)

Country Link
JP (1) JPS577575A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033189A (en) * 1983-08-04 1985-02-20 Oki Electric Ind Co Ltd System for observing travelling anchor
WO2008151395A3 (en) * 2007-06-13 2009-04-02 Adh Products Pty Ltd Boat control apparatus
ITBO20110062A1 (en) * 2011-02-15 2012-08-16 Luciano Tinti METHOD AND DEVICE FOR THE MONITORING OF THE MOORING POSITION OF A BOAT
ITBO20110273A1 (en) * 2011-05-16 2012-11-17 Luciano Tinti DEVICE FOR THE SURVEILLANCE OF THE MOORING POSITION OF A BOAT

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917768A (en) * 1972-06-06 1974-02-16
JPS52151072A (en) * 1976-06-11 1977-12-15 Kaijo Denki Kk System for chasing signal reverberating from sea bottom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917768A (en) * 1972-06-06 1974-02-16
JPS52151072A (en) * 1976-06-11 1977-12-15 Kaijo Denki Kk System for chasing signal reverberating from sea bottom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033189A (en) * 1983-08-04 1985-02-20 Oki Electric Ind Co Ltd System for observing travelling anchor
JPH044199B2 (en) * 1983-08-04 1992-01-27
WO2008151395A3 (en) * 2007-06-13 2009-04-02 Adh Products Pty Ltd Boat control apparatus
ITBO20110062A1 (en) * 2011-02-15 2012-08-16 Luciano Tinti METHOD AND DEVICE FOR THE MONITORING OF THE MOORING POSITION OF A BOAT
ITBO20110273A1 (en) * 2011-05-16 2012-11-17 Luciano Tinti DEVICE FOR THE SURVEILLANCE OF THE MOORING POSITION OF A BOAT

Also Published As

Publication number Publication date
JPS6218025B2 (en) 1987-04-21

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