GB1313928A - Apparatus for controlling the position of marine craft - Google Patents

Apparatus for controlling the position of marine craft

Info

Publication number
GB1313928A
GB1313928A GB2704670A GB1313928DA GB1313928A GB 1313928 A GB1313928 A GB 1313928A GB 2704670 A GB2704670 A GB 2704670A GB 1313928D A GB1313928D A GB 1313928DA GB 1313928 A GB1313928 A GB 1313928A
Authority
GB
United Kingdom
Prior art keywords
bearing
range
reference point
heading
signals
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.)
Expired
Application number
GB2704670A
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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Publication of GB1313928A publication Critical patent/GB1313928A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles
    • G05D1/0208—Control of position or course in two dimensions specially adapted to water vehicles dynamic anchoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

1313928 Automatic position control of floating vessels DECCA Ltd 6 Sept 1971 [4 June 1970] 27046/70 Heading G3R [Also in Division G4] The position of a marine craft 10 (an oil tanker) relative to a reference point, e.g. on a drilling platform, and its heading, are controlled by at least two directional thrusters 13 which are operated in response to co-ordinate error signals derived from a range and bearing determination system comprising at least a transmitter and receiver 14 on the vessel co-operating with a transponder 15 at the reference point in conjunction with signals representing the desired position with respect to the reference point, and to a compass heading signal. The thrusters may be directionally adjustable propellors, but preferably are vertical blade, vertical axis propellors of adjustable pitch. Three control signals are derived, namely compass heading error and position errors in the fore-and-aft and athwartships directions respectively. The two latter signals are produced by an "error signal unit" having inputs of desired bearing and range, the compass, and the actual bearing and range. In Fig.2 (not shown) both the latter are determined by transmitting radio waves from a rotating, directional aerial, modulated at low frequency, which are returned by the transponder 15 (which is battery powered). The received signal is compared in phase with that transmitted to determine range, the bearing being obtained from the instantaneous position of the aerial at reception. In Fig. 3 (not shown) the transmitter is of radar type, using a non-directional aerial, and is used for range only. For bearing determination a vertically fan-shaped laser beam is produced and continuously rotated about a vertical axis by a device which also produces bearing data pulses. Reflectors are set up on the vessel and at the reference point and the number of pulses which occur between reception from the two reflectors are counted, the count being a measure of the bearing.
GB2704670A 1970-06-04 1970-06-04 Apparatus for controlling the position of marine craft Expired GB1313928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2704670 1970-06-04

Publications (1)

Publication Number Publication Date
GB1313928A true GB1313928A (en) 1973-04-18

Family

ID=10253287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2704670A Expired GB1313928A (en) 1970-06-04 1970-06-04 Apparatus for controlling the position of marine craft

Country Status (1)

Country Link
GB (1) GB1313928A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007790A1 (en) * 1978-08-01 1980-02-06 Imperial Chemical Industries Plc Driverless vehicle carrying non-directional detectors auto-guided by light signals
EP0007789A2 (en) * 1978-08-01 1980-02-06 Imperial Chemical Industries Plc Driverless vehicle carrying directional detectors auto-guided by light signals
FR2441878A1 (en) * 1978-11-17 1980-06-13 Thomson Csf DEVICE FOR POSITIONING A MOBILE BY A MAGNETIC FIELD
US4817000A (en) * 1986-03-10 1989-03-28 Si Handling Systems, Inc. Automatic guided vehicle system
EP0776510A1 (en) * 1994-04-19 1997-06-04 Glen E. Robertson Anchorless boat positioning employing global positioning system
WO2005088343A1 (en) * 2004-03-15 2005-09-22 Kongsberg Seatex As Method and system for determining the position of marine vessels and similar objects
WO2006053974A1 (en) * 2004-11-17 2006-05-26 Transboat Lda Device for stabilising a vessel
GB2473668A (en) * 2009-09-22 2011-03-23 Guidance Ip Ltd Position sensor for a marine vessel
WO2013141712A1 (en) * 2012-03-21 2013-09-26 Bjorn Hope A method for observing and recording the identity, position and movement of one or more vessels in specific waters or sailing lane

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007789A2 (en) * 1978-08-01 1980-02-06 Imperial Chemical Industries Plc Driverless vehicle carrying directional detectors auto-guided by light signals
EP0007789A3 (en) * 1978-08-01 1980-02-20 Imperial Chemical Industries Plc Driverless vehicle carrying directional detectors auto-guided by light signals
EP0007790A1 (en) * 1978-08-01 1980-02-06 Imperial Chemical Industries Plc Driverless vehicle carrying non-directional detectors auto-guided by light signals
FR2441878A1 (en) * 1978-11-17 1980-06-13 Thomson Csf DEVICE FOR POSITIONING A MOBILE BY A MAGNETIC FIELD
US4817000A (en) * 1986-03-10 1989-03-28 Si Handling Systems, Inc. Automatic guided vehicle system
EP0776510A1 (en) * 1994-04-19 1997-06-04 Glen E. Robertson Anchorless boat positioning employing global positioning system
EP0776510A4 (en) * 1994-04-19 1998-05-20 Glen E Robertson Anchorless boat positioning employing global positioning system
NO332040B1 (en) * 2004-03-15 2012-06-11 Kongsberg Seatex As Method and system for determining the position of marine vessels and similar objects
WO2005088343A1 (en) * 2004-03-15 2005-09-22 Kongsberg Seatex As Method and system for determining the position of marine vessels and similar objects
US7315274B2 (en) 2004-03-15 2008-01-01 Kongsberg Seatex As Method and system for determining the position of marine vessels and similar objects
WO2006053974A1 (en) * 2004-11-17 2006-05-26 Transboat Lda Device for stabilising a vessel
WO2011036434A1 (en) * 2009-09-22 2011-03-31 Guidance Ip Limited A position reference sensor
GB2473668B (en) * 2009-09-22 2011-08-31 Guidance Ip Ltd A position reference sensor
GB2473668A (en) * 2009-09-22 2011-03-23 Guidance Ip Ltd Position sensor for a marine vessel
US8829405B2 (en) 2009-09-22 2014-09-09 Guidance Ip Limited Position reference sensor
WO2013141712A1 (en) * 2012-03-21 2013-09-26 Bjorn Hope A method for observing and recording the identity, position and movement of one or more vessels in specific waters or sailing lane
US9678205B2 (en) 2012-03-21 2017-06-13 Bjørn Hope Method for observing and recording the identity, position and movement of one or more vessels in specific waters or sailing line

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee