EP0318260A3 - Monitoring means - Google Patents

Monitoring means Download PDF

Info

Publication number
EP0318260A3
EP0318260A3 EP88311069A EP88311069A EP0318260A3 EP 0318260 A3 EP0318260 A3 EP 0318260A3 EP 88311069 A EP88311069 A EP 88311069A EP 88311069 A EP88311069 A EP 88311069A EP 0318260 A3 EP0318260 A3 EP 0318260A3
Authority
EP
European Patent Office
Prior art keywords
detectors
traffic
speed
length
monitoring means
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.)
Withdrawn
Application number
EP88311069A
Other languages
German (de)
French (fr)
Other versions
EP0318260A2 (en
Inventor
Charles David Coe
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.)
Combustion Developments Ltd
Original Assignee
Combustion Developments 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 Combustion Developments Ltd filed Critical Combustion Developments Ltd
Publication of EP0318260A2 publication Critical patent/EP0318260A2/en
Publication of EP0318260A3 publication Critical patent/EP0318260A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G08G1/015—Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles

Abstract

The invention relates to monitoring means particularly for traffic using a road or motorway, the object being to provide information relating to traffic make-up, densities, speeds and the recognition of alarm situations. This objective is met by monitoring means characterised by at least two radiation detection means (1, 2) set in longitudinal spaced relationship in alignment with an intended direction of movement of objects passing below the radiation detection means, each detector being adapted to produce a signal pulse that is a function of the length and speed of an object passing below the detectors, and the at least two detectors being connected to processor means (7) adapted to store and compare the signal pulses generated by each detector. By providing two detectors the pulse outputs from which can be recognised as being from the same vehicle, and are a function of the length and speed of a vehicle, all manner of information can be provided by the data processor such as the categorising of vehicles by length, the volume of traffic per unit time, the speed and spacing of successive vehicles and the progressive slowing down of traffic on a particular stretch of road or motorway, to provide reliable information for analytical purposes and to activate appropriate warning signals positioned alongside in advance of and beyond the position of the detectors, as may be appropriate.
EP88311069A 1987-11-27 1988-11-23 Monitoring means Withdrawn EP0318260A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878727824A GB8727824D0 (en) 1987-11-27 1987-11-27 Monitoring means
GB8727824 1987-11-27

Publications (2)

Publication Number Publication Date
EP0318260A2 EP0318260A2 (en) 1989-05-31
EP0318260A3 true EP0318260A3 (en) 1990-07-04

Family

ID=10627640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88311069A Withdrawn EP0318260A3 (en) 1987-11-27 1988-11-23 Monitoring means

Country Status (2)

Country Link
EP (1) EP0318260A3 (en)
GB (1) GB8727824D0 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8195188B2 (en) 1997-08-04 2012-06-05 Enovsys Llc Location reporting satellite paging system with optional blocking of location reporting
US8242476B2 (en) 2005-12-19 2012-08-14 Leddartech Inc. LED object detection system and method combining complete reflection traces from individual narrow field-of-view channels
US8310655B2 (en) 2007-12-21 2012-11-13 Leddartech Inc. Detection and ranging methods and systems
US8436748B2 (en) 2007-06-18 2013-05-07 Leddartech Inc. Lighting system with traffic management capabilities
US8600656B2 (en) 2007-06-18 2013-12-03 Leddartech Inc. Lighting system with driver assistance capabilities
US8723689B2 (en) 2007-12-21 2014-05-13 Leddartech Inc. Parking management system and method using lighting system
US8842182B2 (en) 2009-12-22 2014-09-23 Leddartech Inc. Active 3D monitoring system for traffic detection
US8908159B2 (en) 2011-05-11 2014-12-09 Leddartech Inc. Multiple-field-of-view scannerless optical rangefinder in high ambient background light
US9235988B2 (en) 2012-03-02 2016-01-12 Leddartech Inc. System and method for multipurpose traffic detection and characterization
US9378640B2 (en) 2011-06-17 2016-06-28 Leddartech Inc. System and method for traffic side detection and characterization

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8826624D0 (en) * 1988-11-14 1988-12-21 Martell D K Traffic congestion monitoring system
DE4135874C1 (en) * 1991-10-31 1992-09-17 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Traffic volume detection circuit - incorporates directional antenna with band-pass filter, frequency-voltage converter and pulse shaper
DE4304298A1 (en) * 1993-02-15 1994-08-18 Atlas Elektronik Gmbh Method for classifying vehicles passing a given waypoint
FR2714755A1 (en) * 1994-01-04 1995-07-07 Le Parquier Guy Nonintrusive traffic control system e.g. for motorway, urban roads etc.
EP0896313B1 (en) * 1998-04-08 2001-07-04 Graziano Gaggioli Equipment for signalling the vehicular traffic in motorways, freeways, one-way streets and the like
ITBO20010571A1 (en) * 2001-09-20 2003-03-20 Univ Bologna VEHICLE TRAFFIC MONITORING SYSTEM AND CONTROL UNIT AND RELATED OPERATING METHOD
CN204256961U (en) * 2013-12-25 2015-04-08 安徽宝龙环保科技有限公司 A kind of speed measurer for motor vehicle
US10488492B2 (en) 2014-09-09 2019-11-26 Leddarttech Inc. Discretization of detection zone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557185A1 (en) * 1974-12-26 1976-07-08 Matra Engins Traffic control monitoring unit - photocells generate pulse rates for determination of speed, number and length of vehicles
FR2523341A1 (en) * 1982-03-15 1983-09-16 Techno 2000 Road traffic analysis using dual modulated light beams - uses rotating disc to split light beam into two beams which are directed onto photodetectors in road surface
GB2154388A (en) * 1984-02-14 1985-09-04 Secr Defence Image processing system
EP0171098A1 (en) * 1984-07-02 1986-02-12 Koninklijke Philips Electronics N.V. Method of controlling a traffic control system and a traffic control system for use of the method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557185A1 (en) * 1974-12-26 1976-07-08 Matra Engins Traffic control monitoring unit - photocells generate pulse rates for determination of speed, number and length of vehicles
FR2523341A1 (en) * 1982-03-15 1983-09-16 Techno 2000 Road traffic analysis using dual modulated light beams - uses rotating disc to split light beam into two beams which are directed onto photodetectors in road surface
GB2154388A (en) * 1984-02-14 1985-09-04 Secr Defence Image processing system
EP0171098A1 (en) * 1984-07-02 1986-02-12 Koninklijke Philips Electronics N.V. Method of controlling a traffic control system and a traffic control system for use of the method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8195188B2 (en) 1997-08-04 2012-06-05 Enovsys Llc Location reporting satellite paging system with optional blocking of location reporting
US8242476B2 (en) 2005-12-19 2012-08-14 Leddartech Inc. LED object detection system and method combining complete reflection traces from individual narrow field-of-view channels
US8436748B2 (en) 2007-06-18 2013-05-07 Leddartech Inc. Lighting system with traffic management capabilities
US8600656B2 (en) 2007-06-18 2013-12-03 Leddartech Inc. Lighting system with driver assistance capabilities
US8310655B2 (en) 2007-12-21 2012-11-13 Leddartech Inc. Detection and ranging methods and systems
US8723689B2 (en) 2007-12-21 2014-05-13 Leddartech Inc. Parking management system and method using lighting system
US8842182B2 (en) 2009-12-22 2014-09-23 Leddartech Inc. Active 3D monitoring system for traffic detection
US8908159B2 (en) 2011-05-11 2014-12-09 Leddartech Inc. Multiple-field-of-view scannerless optical rangefinder in high ambient background light
US9378640B2 (en) 2011-06-17 2016-06-28 Leddartech Inc. System and method for traffic side detection and characterization
US9235988B2 (en) 2012-03-02 2016-01-12 Leddartech Inc. System and method for multipurpose traffic detection and characterization

Also Published As

Publication number Publication date
EP0318260A2 (en) 1989-05-31
GB8727824D0 (en) 1987-12-31

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