GB2353650A - Speed trap warning device - Google Patents

Speed trap warning device Download PDF

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Publication number
GB2353650A
GB2353650A GB0020962A GB0020962A GB2353650A GB 2353650 A GB2353650 A GB 2353650A GB 0020962 A GB0020962 A GB 0020962A GB 0020962 A GB0020962 A GB 0020962A GB 2353650 A GB2353650 A GB 2353650A
Authority
GB
United Kingdom
Prior art keywords
speed
vehicle
warning
detector
detectors
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
GB0020962A
Other versions
GB2353650A9 (en
GB2353650A8 (en
GB2353650B8 (en
GB2353650B (en
GB0020962D0 (en
Inventor
Martin Burch
Gareth Hopkins
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.)
MORPHEOUS Ltd
Original Assignee
MORPHEOUS 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 MORPHEOUS Ltd filed Critical MORPHEOUS Ltd
Publication of GB0020962D0 publication Critical patent/GB0020962D0/en
Publication of GB2353650A publication Critical patent/GB2353650A/en
Publication of GB2353650A9 publication Critical patent/GB2353650A9/en
Application granted granted Critical
Publication of GB2353650B publication Critical patent/GB2353650B/en
Publication of GB2353650A8 publication Critical patent/GB2353650A8/en
Publication of GB2353650B8 publication Critical patent/GB2353650B8/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04—Details
    • G01S1/047—Displays or indicators
    • 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
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0045—Transmission from base station to mobile station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096791—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is another vehicle
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/008—Transmission of position information to remote stations using a mobile telephone network

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Traffic Control Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A device for warning motorists of an approaching location wherein a roadside vehicle speed detector is located includes a GPS sensor providing real time coordinate data identifying the location of the vehicle, and a memory holding a local database of coordinate data identifying the geographical locations of roadside vehicle speed detectors. Means are then provided for computing from a comparison of the real time and stored data the position of the vehicle relative to the speed detectors, and a warning signal is generated and/or displayed whenever the computing means determines that the vehicle is within a predetermined distance of one or more of the speed detectors. The predetermined distance may be speed-dependent. The device may also store speed limits and determine the vehicle's speed using the GPS, and only warn the driver if he is exceeding the speed limit. The device may also store the direction in which detectors face, and only warn the driver if he is moving in a direction liable to detection. The database may be downloaded from a central server.

Description

1 2353650 DETECTION WARNING SYSTEMS Excessive speeds of road vehicles are
a well-known cause of road accidents, particularly in certain areas, such as areas close to schools, or areas often referred to as "accident blackspote. In an effort to curb speeding in these areas, the police may install a roadside vehicle speed detector. However, although such a detector wiJI detect vehicles travelling at excessive speeds, it cannot curb speeding unless a driver voluntarily reduces speed when approaching the detector.
According to one aspect of the present invention there is provided a device for warning motorists of an approaching location wherein a roadside vehicle speed detector is located, the device comprising means for sensing the geographical location of a moving vehicle and providing real time coordinate data identifying the said location; a memory holding a local database of coordinate data identifying the geographical locations of roadside vehicle speed detectors, means for computing from a comparison of the real time and stored data the position of the vehicle relative to the speed detectors, and means for generating and/or displaying a warning signal whenever the computing means determines that the vehicle is within a predetermined distance of one or more of the speed detectors. The predetermined distance may be a fixed distance but is preferably computed as a function of the vehicle speed so that at higher speeds the distance is greater. The location of the vehicle is preferably sensed by a GPS unit and the vehicle speed is preferably computed by the GPS unit.
Preferably the database is adapted to store not only the location of a vehicle speed detector but also the speed limit imposed in the zone in which the detector is located, the orientation of the speed detector, and the type of detector. Using this stored data, the device can inhibit generation and/or display of a warning signal if a vehicle in which the device is installed is travelling at a speed within the imposed speed limit when the computing means determines that the vehicle has approached to within range of the detector. Moreover, a warning signal is also inhibited if the detector is not orientated in a direction that will detect the vehicle as it passes within 2 range of the detector. This is achieved by comparing the vehicle heading with the orientation of the detector. If the vehicle heading indicates that the vehicle is travelling along a highway which will pass within range of the detector but on which there is no speed limit, the warning is inhibited. Finally, if the stored data indicates that the speed detector is of the type where a vehicle is timed between two detectors spaced apart from one another, a warning signal is maintained as the vehicle travels between the two detectors even though both detectors may be out of range.
Preferably, the warning device further comprises means for connecting the local database to a remote central server via a telecommunication link or computer network, the server updating the local database with freshly learned data from a master database when the link is established.
By way of example only, a warning device embodying the invention will now be described in more detail with reference to the accompanying drawing in which the sole figure is a schematic overview of the device.
Referring to this drawing, a non-volatile memory 10 holds a local database consisting of latitude/longitude coordinates identifying the geographical locations of speed cameras in areas where it has been predetermined that excessive vehicle speeds should be avoided. The local database is built-up by determining the various locations and entering the appropriate coordinates into the memory. Additional information entered in the memory includes the date on which the coordinates were entered or last updated, the restricted speed zone within which the camera is located, the bearing of the camera, and the type of camera. Camera types include GATSCO and SPECS.
The warning device also includes a global positioning system (GPS) engine 12 that picks up satellite signals on an antenna and computes accurate real time latitude and longitude coordinates identifying the geographical location of a vehicle in which the device is fitted. Alternatively the geographical location might be determined by a 3 mobile phone triangulation system. A microprocessor and high speed search engine 14 then compares the real time coordinates with the coordinates stored in the local database of the memory 10 and determines when the vehicle is within a predetermined distance or range of a speed camera. The GPS engine 12 may also compute the speed of the vehicle so that the device generates a warning signal at a distance from the camera dependant on the vehicle speed. Accordingly at higher speeds a warning signal is generated at a great distance from the camera. The user has the option of selecting either distance ranging or speed dependent ranging using a processor 16 connected to the microprocessor 14. With distance ranging, the user is able to select a desired range of their choice, and a warning signal is generated whenever the vehicle is within this range of a speed camera. Alternatively, with speed dependent ranging, the user selects a time interval within which the vehicle would reach a speed camera if continuing to travel at the same speed, and a warning signal is first generated at the start of this time interval.
The digital warning signal generated by the nficroprocessor 14 may be converted to analogue form before being output through processor 16 to a visual warning device 15 andlor to an audio warning device 17. The visual warning device may comprise, for example, a single LED, a series of LED's or a liquid crystal display.
A remote synchronise engine 19 is connected to the microprocessor 14 to provide formatted data when the local database is updated with newly learned data from a master database located at a remote central server 21. To permit updating of the local database, the device includes a modem 18 so that when the device is removed from the vehicle in which it is installed it can be plugged into a standard telephone network PSTN 20 or ISDN 23 with automatic dialling to connect the local database to the master database in the remote server 2 1. The remote synchronise engine 19 is the intelligence behind the updating procedure and ensures that only newly learned data in the master database is downloaded to the local database, thereby reducing the time required for an update. A remote central server 21 is operated by 4 each of the retailers distributing the warning device and provides user information, user settings, product information, product monitoring, user databases, a filter engine database, a speed camera location reporting system, a synchronize engine and a port array engine, as well as storing the master database of speed camera locations.
The warning device includes a push button 22 or a similar manually operable actuator providing an input to the remote synchronise engine 19, the button being actuated whenever a person travelling in a vehicle in which the device is fitted observes a speed camera at a location which is not on the local database. A real time clock counter in the engine 19 provides a signal indicating the time at which such an observation is made and the position of the vehicle at that time. This information is initially stored in the local database 10 and then transferred to the central server when the telephone connection is made.
The warning device additionally includes a PC interface 24 to enable communication with the remote central server through a computer network including a RS-232 interface 25. Other types of connection may include I-DA (infrared communication standard), and GSM.
The remote synchronise engine 19 may also act as a database watchdog providing data security, redundancy and fault tolerance.
The n-dcroprocessor 14 includes means for comparing the computed speed of the vehicle with the speed limit of the speed zone stored in the local database 10 whenever a speed camera comes within range of the warning device, and means for inhibiting generation of a warning signal if the computed speed is within the speed limit.
The microprocessor 14 further includes means for comparing the heading of the vehicle determined by the GPS engine 12 with the "camera facinj bearing of the speed camera stored in the local database 10 whenever a speed camera comes within range of the warning device, and means for inhibiting generation of a warning signal if the heading and the bearing indicate that the vehicle is not travelling in a direction for which the camera is orientated.
The microprocessor 14 further includes means responsive to a signal from the local database 10 indicating that the type of camera within range is one wherein at least two cameras are spaced apart to detect the vehicle speed. In response to such a signal, the microprocessor maintains the generated warning signal when the computed geographical location of the vehicle is outside the range of any one of the cameras but lies between two of the cameras.
If the GPS engine 12 is operating off-line (for example inside a long tunnel), the microprocessor 14 generates a warning signal in response to the history of the vehicle speed and heading, for example on the basis of the speed and heading as it enters a tunnel. To distinguish off-line warning signals from normal warning signals, the visual display 15 may display an amber signal rather than the normal red signal.
6

Claims (1)

  1. CLAIMS:
    1. A device for warning motorists of an approaching roadside vehicle speed detector, the device comprising means for sensing the geographical location of a vehicle and providing real time coordinate data identifying the said location; a memory holding a local database of coordinate data identifying the geographical locations of roadside velicle speed detectors; means for computing from a comparison of the real time and stored data the position of the vehicle relative to the speed detectors; and means for generating and/or displaying a warning signal whenever the computing means determines that the vehicle is within a predetermined distance of one or more of the speed detectors.
    2. A warning device according to claim I wherein the sensing means comprises a GPS unit.
    3. A warning device according to claim 2 wherein the predetermined distance is dependent on the vehicle speed.
    4. A warning device according to claim 3 wherein the vehicle speed is computed by the GP S unit.
    5. A warning device according to any one of the claims 1-4 wherein the local database additionally stores data indicating the speed limit imposed in the zone in which the speed detector is located, and the device further comprises means for comparing the computed vehicle speed with the said speed limit, and means for inhibiting generation of a warning signal whenever the computed speed is less than the speed limit.
    6. A warift device accQrdipg to any one of the preceding claims wherein the local database additionally stores data indicating the orientation of the speed detector and the sensing means additionally provides a signal indicating the heading of the 8 generation of the warning signal whenever the computed speed of the vehicle is less than a predetermined speed limit.
    11. A method according to claim 9 further comprising determining the heading of the vehicle whenever the moving vehicle comes within the said predetermined distance of a speed detector, and inhibiting generation of the warning signal whenever the heading of the vehicle indicates that the vehicle is not travelling in a direction for which the detector is orientated.
    12. A method according to claim 9 wherein the speed detector includes at least two detector units spaced apart from one another and wherein the method further comprises maintaining generation of the warning signal whenever the moving vehicle is travelling between the two units but is not within the said predetermined distance of either one of the units.
    13. A device according to claim 1 and substantially as herein described with reference to the accompanying drawing.
    14. A method according to claim 9 and substantially as herein described with reference to the accompanying drawing.
GB0020962.7A 1999-08-24 2000-08-24 Detection warning systems Expired - Fee Related GB2353650B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9920067A GB2353647B (en) 1999-08-24 1999-08-24 Detection warning systems

Publications (6)

Publication Number Publication Date
GB0020962D0 GB0020962D0 (en) 2000-10-11
GB2353650A true GB2353650A (en) 2001-02-28
GB2353650A9 GB2353650A9 (en) 2001-03-21
GB2353650B GB2353650B (en) 2004-07-28
GB2353650A8 GB2353650A8 (en) 2015-06-24
GB2353650B8 GB2353650B8 (en) 2015-06-24

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GB0020962.7A Expired - Fee Related GB2353650B8 (en) 1999-08-24 2000-08-24 Detection warning systems

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358750A (en) * 2000-01-26 2001-08-01 Timothy Michael Rock Speed trap detection and warning; speed limit display
GB2370436A (en) * 2000-01-26 2002-06-26 Origin Technologies Ltd Speed trap detection and warning system
GB2371432A (en) * 2000-01-26 2002-07-24 Origin Technologies Ltd Speed trap warning system
GB2377106A (en) * 2001-01-31 2002-12-31 Yupiteru Ind Co Ltd Vehicle mounted target detecting apparatus and microwave detector
WO2004017276A1 (en) * 2002-08-19 2004-02-26 Nathaniel Davidson Vehicle identification means detection and evasion system
EP1693814A2 (en) 2005-02-17 2006-08-23 Ron Yaacov Davidson Vehicle identification means detection and evasion system
US7183942B2 (en) 2000-01-26 2007-02-27 Origin Technologies Limited Speed trap detection and warning system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388732B (en) * 2001-06-18 2004-03-31 Origin Technologies Ltd Speed trap detection and warning system
US6662778B2 (en) 2001-07-20 2003-12-16 Caterpillar Inc Engine compression release brake system and method for operating the same
FR2861882A1 (en) * 2003-11-03 2005-05-06 Stephane Aver Vehicle driver assisting process for controlling speed of vehicle, involves transmitting alarm signal when vehicle speed is higher than speed over deceleration curve associated with zone preceding next speed limit sign
FR2866437A1 (en) * 2004-02-13 2005-08-19 Delta System Comm Geographical point e.g. level crossing, approach warning device for e.g. car, has triggering unit to trigger sound and/or light alarm when distance between each geographical point position and vehicle position is less than given value
DE102008007687A1 (en) * 2008-02-06 2009-08-13 GM Global Technology Operations, Inc., Detroit Assistance device for motor vehicle i.e. car, has control device for controlling observation of characteristic parameters, and optical display and acoustic signal device for informing driver about actual characteristic parameters
CN106355917A (en) * 2016-09-14 2017-01-25 奇瑞汽车股份有限公司 Traffic violation prediction and warning method and system based on internet of vehicles

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EP0720137A2 (en) * 1994-12-28 1996-07-03 Omron Corporation Traffic information system
JPH0927096A (en) * 1995-07-10 1997-01-28 Matsushita Electric Ind Co Ltd Speed excess alarming device
EP0789344A1 (en) * 1996-02-10 1997-08-13 Werner Schrimpf Position determination system for vehicle
WO1997047095A1 (en) * 1996-06-07 1997-12-11 Sk Telecom Co., Ltd. System and method for providing useful information for a moving object
US5717392A (en) * 1996-05-13 1998-02-10 Eldridge; Marty Position-responsive, hierarchically-selectable information presentation system and control program
US5767795A (en) * 1996-07-03 1998-06-16 Delta Information Systems, Inc. GPS-based information system for vehicles

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GB9912831D0 (en) * 1999-06-02 1999-08-04 Gale Nicholas Digital mapping
GB2358749A (en) * 2000-01-26 2001-08-01 Timothy Michael Rock Speed trap warning system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0720137A2 (en) * 1994-12-28 1996-07-03 Omron Corporation Traffic information system
JPH0927096A (en) * 1995-07-10 1997-01-28 Matsushita Electric Ind Co Ltd Speed excess alarming device
EP0789344A1 (en) * 1996-02-10 1997-08-13 Werner Schrimpf Position determination system for vehicle
US5717392A (en) * 1996-05-13 1998-02-10 Eldridge; Marty Position-responsive, hierarchically-selectable information presentation system and control program
WO1997047095A1 (en) * 1996-06-07 1997-12-11 Sk Telecom Co., Ltd. System and method for providing useful information for a moving object
US5767795A (en) * 1996-07-03 1998-06-16 Delta Information Systems, Inc. GPS-based information system for vehicles

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358750A (en) * 2000-01-26 2001-08-01 Timothy Michael Rock Speed trap detection and warning; speed limit display
GB2358750B (en) * 2000-01-26 2002-02-20 Timothy Michael Rock Speed trap detection and warning system
GB2370436A (en) * 2000-01-26 2002-06-26 Origin Technologies Ltd Speed trap detection and warning system
GB2371432A (en) * 2000-01-26 2002-07-24 Origin Technologies Ltd Speed trap warning system
GB2370436B (en) * 2000-01-26 2002-08-07 Origin Technologies Ltd Speed trap detection and warning system
US7183942B2 (en) 2000-01-26 2007-02-27 Origin Technologies Limited Speed trap detection and warning system
GB2377106A (en) * 2001-01-31 2002-12-31 Yupiteru Ind Co Ltd Vehicle mounted target detecting apparatus and microwave detector
GB2377106B (en) * 2001-01-31 2003-10-01 Yupiteru Ind Co Ltd Vehicle-mounted target detecting apparatus and microwave detector
WO2004017276A1 (en) * 2002-08-19 2004-02-26 Nathaniel Davidson Vehicle identification means detection and evasion system
US7076349B2 (en) 2002-08-19 2006-07-11 Ron Yaacov Davidson Vehicle identification means detection and evasion system
EP1693814A2 (en) 2005-02-17 2006-08-23 Ron Yaacov Davidson Vehicle identification means detection and evasion system

Also Published As

Publication number Publication date
GB2353650A9 (en) 2001-03-21
GB9920067D0 (en) 1999-10-27
GB2353650A8 (en) 2015-06-24
GB2353647B (en) 2002-04-10
GB2353650B8 (en) 2015-06-24
GB2353647A (en) 2001-02-28
GB2353650B (en) 2004-07-28
GB0020962D0 (en) 2000-10-11

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