GB1447985A - Collision avoidance systems - Google Patents

Collision avoidance systems

Info

Publication number
GB1447985A
GB1447985A GB231373A GB231373A GB1447985A GB 1447985 A GB1447985 A GB 1447985A GB 231373 A GB231373 A GB 231373A GB 231373 A GB231373 A GB 231373A GB 1447985 A GB1447985 A GB 1447985A
Authority
GB
United Kingdom
Prior art keywords
route
radar
vehicle
along
obstacles
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
GB231373A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB231373A priority Critical patent/GB1447985A/en
Publication of GB1447985A publication Critical patent/GB1447985A/en
Expired 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9323—Alternative operation using light 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9328—Rail vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

1447985 Radar GENERAL ELECTRIC CO Ltd 5 April 1974 [16 Jan 1973] 2313/73 Heading H4D To avoid the collision of a vehicle, automatically guided along a predetermined route (e.g. a train) with obstacles on the route, a pulsed radar is mounted on the vehicle, and, as a preliminary step, the vehicle is run along the route at a time when it is known that there are no obstacles present, the radar returns then being recorded at measured intervals along the route in digital storage means to give a set of reference "obstacles free" returns. During an actual run, the radar return at each interval is compared with the corresponding reference return, and any significant difference inferred as being produced by an obstacle. Where the route curves, the radar beam is programmed to azimuth scan along the route, either by physical movement of an aerial or by relative phase adjustment of a pair of receiving aerials. The invention may also be applied to an aircraft being guided down a flight path, or a vehicle guided along a visible line by photo-detector means.
GB231373A 1973-01-16 1973-01-16 Collision avoidance systems Expired GB1447985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB231373A GB1447985A (en) 1973-01-16 1973-01-16 Collision avoidance systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB231373A GB1447985A (en) 1973-01-16 1973-01-16 Collision avoidance systems

Publications (1)

Publication Number Publication Date
GB1447985A true GB1447985A (en) 1976-09-02

Family

ID=9737356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB231373A Expired GB1447985A (en) 1973-01-16 1973-01-16 Collision avoidance systems

Country Status (1)

Country Link
GB (1) GB1447985A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258362A (en) * 1991-07-27 1993-02-03 Gec Ferranti Defence Syst A collision warning system
GB2291300A (en) * 1994-06-20 1996-01-17 Motorola Ltd Location using mobile communications system
EP1206710A1 (en) * 1999-08-06 2002-05-22 Roadrisk Technologies, Llc Method and apparatus for stationary object detection
GB2442776A (en) * 2006-10-11 2008-04-16 Autoliv Dev Object detection arrangement and positioning system for analysing the surroundings of a vehicle
WO2018104191A1 (en) * 2016-12-06 2018-06-14 Siemens Aktiengesellschaft Automated open space identification by means of difference analysis for vehicles
EP3671256A1 (en) * 2018-12-19 2020-06-24 Elta Systems Ltd. System for obstacle detection

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258362A (en) * 1991-07-27 1993-02-03 Gec Ferranti Defence Syst A collision warning system
US5252978A (en) * 1991-07-27 1993-10-12 Gec Ferranti Defence Systems Limited Collision warning system
GB2291300A (en) * 1994-06-20 1996-01-17 Motorola Ltd Location using mobile communications system
GB2291300B (en) * 1994-06-20 1997-12-17 Motorola Ltd Communications system
EP1206710A1 (en) * 1999-08-06 2002-05-22 Roadrisk Technologies, Llc Method and apparatus for stationary object detection
GB2442776A (en) * 2006-10-11 2008-04-16 Autoliv Dev Object detection arrangement and positioning system for analysing the surroundings of a vehicle
US8558679B2 (en) 2006-10-11 2013-10-15 Autoliv Development Ab Method of analyzing the surroundings of a vehicle
WO2018104191A1 (en) * 2016-12-06 2018-06-14 Siemens Aktiengesellschaft Automated open space identification by means of difference analysis for vehicles
EP3671256A1 (en) * 2018-12-19 2020-06-24 Elta Systems Ltd. System for obstacle detection

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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