GB1485180A - Positional control of water-borne vessels - Google Patents

Positional control of water-borne vessels

Info

Publication number
GB1485180A
GB1485180A GB54756/74A GB5475674A GB1485180A GB 1485180 A GB1485180 A GB 1485180A GB 54756/74 A GB54756/74 A GB 54756/74A GB 5475674 A GB5475674 A GB 5475674A GB 1485180 A GB1485180 A GB 1485180A
Authority
GB
United Kingdom
Prior art keywords
thrusters
heading
signals
dec
phase difference
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
GB54756/74A
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
Priority to GB54756/74A priority Critical patent/GB1485180A/en
Publication of GB1485180A publication Critical patent/GB1485180A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2045—Guiding machines along a predetermined path
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical 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

1485180 Automatic control of position and course DECCA Ltd 16 Dec 1975 [18 Dec 1974] 54756/74 Addition to 1173442 Heading G3R In a system for automatically controlling the position of a water-borne vessel, e.g. a dredger with respect to a reference which may vary with time to define a course as described in the Parent Specification the vertical axis thrusters are replaced by at least two horizontal axis thrusters and a fore and aft propulsion unit. Position is determined by a digital computer from a measurement of the phase difference between radio or acoustic signals transmitted from and received by the vessel, after re-transmission from share stations 6, 8 or underwater transponders, the phase difference being representative of the range from each station. The computer output is two signals defining the position in geographical co-ordinates which are compared with the pre-programmed reference, the result being instantaneous positional error signals which are resolved into orthoganal co-ordinates relative to the ship by combination with a magnetic or gyro compass signal. The resolver output is combined with a heading error signal, derived from the compass, in an undisclosed signal processor which provides the appropriate corrective signals for position and heading to thrusters 9 ... 12 and propulsion unit 14. The thrusters are fixed to produce side thrust only, their effect being adjusted, and reversible, by pitch control of horizontal axis propellors. Manual over-ride is provided and the transmitters, receivers and stations may be duplicated for reliability.
GB54756/74A 1975-12-16 1975-12-16 Positional control of water-borne vessels Expired GB1485180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB54756/74A GB1485180A (en) 1975-12-16 1975-12-16 Positional control of water-borne vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54756/74A GB1485180A (en) 1975-12-16 1975-12-16 Positional control of water-borne vessels

Publications (1)

Publication Number Publication Date
GB1485180A true GB1485180A (en) 1977-09-08

Family

ID=10471984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54756/74A Expired GB1485180A (en) 1975-12-16 1975-12-16 Positional control of water-borne vessels

Country Status (1)

Country Link
GB (1) GB1485180A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011522A1 (en) * 1978-11-17 1980-05-28 Thomson-Csf Positioning device for a moving body by way of a magnetic field
FR2520185A1 (en) * 1982-01-22 1983-07-29 Preciculture DEVICE FOR AUTOMATICALLY GUIDING THE MOVEMENT OF A VEHICLE, IN PARTICULAR AN ALL-TERRAIN VEHICLE
FR2555624A1 (en) * 1983-11-28 1985-05-31 Syndicat Nal Entr Drainage METHOD AND APPARATUS FOR AUTOMATICALLY GUIDING GROUNDING MACHINES, IN PARTICULAR A DRAINING ELEMENT INSTALLATION MACHINE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011522A1 (en) * 1978-11-17 1980-05-28 Thomson-Csf Positioning device for a moving body by way of a magnetic field
FR2520185A1 (en) * 1982-01-22 1983-07-29 Preciculture DEVICE FOR AUTOMATICALLY GUIDING THE MOVEMENT OF A VEHICLE, IN PARTICULAR AN ALL-TERRAIN VEHICLE
US4558760A (en) * 1982-01-22 1985-12-17 Preciculture Apparatus for automatically guiding the movement of a vehicle, especially an off-road vehicle
FR2555624A1 (en) * 1983-11-28 1985-05-31 Syndicat Nal Entr Drainage METHOD AND APPARATUS FOR AUTOMATICALLY GUIDING GROUNDING MACHINES, IN PARTICULAR A DRAINING ELEMENT INSTALLATION MACHINE
EP0145565A1 (en) * 1983-11-28 1985-06-19 Syndicat National Des Entreprises De Drainage Process and apparatus for the automatic guiding of soil-shifting machines, particularly of a machine for laying draining elements

Similar Documents

Publication Publication Date Title
US6678589B2 (en) Boat positioning and anchoring system
US3771483A (en) Apparatus and method for the automatic navigation of a sailing vessel
GB1173442A (en) Improvements in or relating to the Positional Control of Water Borne Vessels
US5491636A (en) Anchorless boat positioning employing global positioning system
DE3279088D1 (en) High accuracy navigating apparatus with step-driven projected chart
GB994995A (en) Apparatus for controlling the position of a floating vessel
GB1021264A (en) Ship control system
GB1408636A (en) Control devices
GB1521228A (en) Stabilised platforms
GB994996A (en) System for positioning a floating vessel
US4051350A (en) Position measuring device
GB1485180A (en) Positional control of water-borne vessels
GB1313928A (en) Apparatus for controlling the position of marine craft
US3691978A (en) Apparatus for the automatic navigation of a sailing vessel
US3576977A (en) System and method for controlling the positioning system of a pipelaying vessel
NO304046B1 (en) Gyro apparatus
US3922630A (en) Automatic vehicle positioning system
JPS58108478A (en) Pedestal control system of automatic tracking antenna to be carried on oscillating body
US4590570A (en) Marine navigational aid
JPS5695798A (en) Automatic pilot device for ship
Oldenburg Experiment with a new adaptive autopilot intended for controlled turns as well as for straight course steering
US4672383A (en) Craft guidance system
JPH10332416A (en) Automatic moving body, automatic navigating ship, and automatic surveying ship for deposited sand of dam
JP2529561B2 (en) Automatic steering device for ships
JPH0414287B2 (en)

Legal Events

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