GB1447985A - Collision avoidance systems - Google Patents
Collision avoidance systemsInfo
- 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
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.
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)
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 |
-
1973
- 1973-01-16 GB GB231373A patent/GB1447985A/en not_active Expired
Cited By (9)
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 |