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GB2234131A - Automatic vehicle guidance systems - Google Patents

Automatic vehicle guidance systems

Info

Publication number
GB2234131A
GB2234131A GB9005254A GB9005254A GB2234131A GB 2234131 A GB2234131 A GB 2234131A GB 9005254 A GB9005254 A GB 9005254A GB 9005254 A GB9005254 A GB 9005254A GB 2234131 A GB2234131 A GB 2234131A
Authority
GB
United Kingdom
Prior art keywords
beacons
receivers
intervals
automatic vehicle
vehicle guidance
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
GB9005254A
Other versions
GB2234131B (en
GB9005254D0 (en
Inventor
Douglas Jackson
Andrew Rae Robertson
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.)
UK Secretary of State for Trade and Industry
Original Assignee
UK Secretary of State for Trade and Industry
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 UK Secretary of State for Trade and Industry filed Critical UK Secretary of State for Trade and Industry
Publication of GB9005254D0 publication Critical patent/GB9005254D0/en
Publication of GB2234131A publication Critical patent/GB2234131A/en
Application granted granted Critical
Publication of GB2234131B publication Critical patent/GB2234131B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • 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
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
    • G05D1/0234—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using optical markers or beacons
    • 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
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0268—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means
    • G05D1/027—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means comprising intertial navigation means, e.g. azimuth detector
    • 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
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
    • G05D1/0242—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using non-visible light signals, e.g. IR or UV signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Traffic Control Systems (AREA)

Abstract

A method of controlling one or more automatically controlled vehicles (10) using beacons (14, 24) and receivers (13, 23) (beacons being fixed and receivers on vehicles, or vice versa) uses a sequential switching system such that the effects of malfunctioning or masked beacons (14, 24) or receivers (13, 23) can be allowed for. The beacons sequentially emit signals, intervals between consecutive signals being equal until all beacons have been caused to signal, then after a first pause time of a first integral number of intervals the beacons emit signals in reverse order, and after all the beacons have been caused to signal, after a second pause time of a second integral number of intervals, the steps are repeated. The first and second integrals differ by an odd number. The invention also concerns apparatus for carrying out the method.
GB9005254A 1987-09-23 1990-03-07 Automatic vehicle guidance systems Expired - Lifetime GB2234131B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878722405A GB8722405D0 (en) 1987-09-23 1987-09-23 Automatic vehicle guiding systems
PCT/GB1988/000769 WO1989003075A1 (en) 1987-09-23 1988-09-19 Automatic vehicle guidance systems

Publications (3)

Publication Number Publication Date
GB9005254D0 GB9005254D0 (en) 1990-06-20
GB2234131A true GB2234131A (en) 1991-01-23
GB2234131B GB2234131B (en) 1992-02-12

Family

ID=10624264

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878722405A Pending GB8722405D0 (en) 1987-09-23 1987-09-23 Automatic vehicle guiding systems
GB9005254A Expired - Lifetime GB2234131B (en) 1987-09-23 1990-03-07 Automatic vehicle guidance systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878722405A Pending GB8722405D0 (en) 1987-09-23 1987-09-23 Automatic vehicle guiding systems

Country Status (7)

Country Link
EP (1) EP0380535A1 (en)
KR (1) KR890702098A (en)
AU (1) AU2428588A (en)
ES (1) ES2012850A6 (en)
GB (2) GB8722405D0 (en)
PT (1) PT88574A (en)
WO (1) WO1989003075A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652910B1 (en) * 1989-10-10 1992-03-06 Micromaine Asi METHOD OF SIMULTANEOUSLY EVALUATING POSITIONS RELATING TO A PLURALITY OF BEACONS.
SE9500729L (en) * 1995-02-27 1996-08-28 Gert Andersson Apparatus for measuring angular velocity in single crystalline material and method for making such
FR2785055B1 (en) * 1998-10-21 2003-11-14 Ecole Nationale D Ingenieurs D MOBILE LOCATION SYSTEM IN A DEFINED AREA
GB2353909B (en) * 1999-08-28 2004-03-17 John Alfred Cawkwell Robot positioning and motion mechanism

Citations (5)

* 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
US4482960A (en) * 1981-11-20 1984-11-13 Diffracto Ltd. Robot tractors
EP0141964A1 (en) * 1983-10-25 1985-05-22 JD-Technologie AG Position data and direction auto-determining system for a moving terrrestrial object
US4677555A (en) * 1983-11-28 1987-06-30 Syndicat National Des Entreprises De Drainage Method and equipment for automatic guidance of earthmoving machines and especially machines for laying drainage elements
DE3606399A1 (en) * 1986-02-27 1987-09-03 Messerschmitt Boelkow Blohm MEASURING DEVICE FOR DETERMINING THE POSITION OF AN OBJECT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178412A (en) * 1982-04-13 1983-10-19 Kubota Ltd Running agricultural machine

Patent Citations (5)

* 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
US4482960A (en) * 1981-11-20 1984-11-13 Diffracto Ltd. Robot tractors
EP0141964A1 (en) * 1983-10-25 1985-05-22 JD-Technologie AG Position data and direction auto-determining system for a moving terrrestrial object
US4677555A (en) * 1983-11-28 1987-06-30 Syndicat National Des Entreprises De Drainage Method and equipment for automatic guidance of earthmoving machines and especially machines for laying drainage elements
DE3606399A1 (en) * 1986-02-27 1987-09-03 Messerschmitt Boelkow Blohm MEASURING DEVICE FOR DETERMINING THE POSITION OF AN OBJECT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan,Vol.8,No.23(P251)Abstact of *

Also Published As

Publication number Publication date
ES2012850A6 (en) 1990-04-16
AU2428588A (en) 1989-04-18
KR890702098A (en) 1989-12-22
GB2234131B (en) 1992-02-12
PT88574A (en) 1989-07-31
GB8722405D0 (en) 1987-10-28
GB9005254D0 (en) 1990-06-20
WO1989003075A1 (en) 1989-04-06
EP0380535A1 (en) 1990-08-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920919