EP0543904A1 - Dispositif de surveillance destine plus particulierement a etre utilise pour voir les plaques mineralogiques des vehicules - Google Patents

Dispositif de surveillance destine plus particulierement a etre utilise pour voir les plaques mineralogiques des vehicules

Info

Publication number
EP0543904A1
EP0543904A1 EP91915142A EP91915142A EP0543904A1 EP 0543904 A1 EP0543904 A1 EP 0543904A1 EP 91915142 A EP91915142 A EP 91915142A EP 91915142 A EP91915142 A EP 91915142A EP 0543904 A1 EP0543904 A1 EP 0543904A1
Authority
EP
European Patent Office
Prior art keywords
camera
light
illuminator
pulses
plates
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Withdrawn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
EP91915142A
Other languages
German (de)
English (en)
Inventor
Philip Galbraith
Richard James Harris
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 Defence
Original Assignee
UK Secretary of State for Defence
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 Defence filed Critical UK Secretary of State for Defence
Publication of EP0543904A1 publication Critical patent/EP0543904A1/fr
Withdrawn legal-status Critical Current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
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • 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
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
    • 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
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • 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
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors

Definitions

  • the apparatus comprises the illuminator or light-energy source 10 which, suitably, has an array of standard 940nm LEDs transmitting IR light which is invisible to the human eye, as indicated above with reference to Figure 2.
  • the array may comprise about 40 to 400 LEDs, depending on the required specification of the apparatus, and one LED which has proved satisfac ⁇ tory is the AEG TSIP5201 having a continuous rating of 00mA.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Traffic Control Systems (AREA)
  • Stroboscope Apparatuses (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

Dispositif de surveillance destiné plus particulièrement à voir les plaques minéralogiques des véhicules au cours d'opérations effectuées de nuit et en secret, ledit dispositif comprenant une source lumineuse (10) pourvue d'un système de diodes (11) électroluminescentes ou d'une source de lumière laser, et une caméra de télévision fermée, de préférence miniature. La source lumineuse émet une série d'impulsions à crêtes élevées de lumière infra-rouge (17) située hors de la gamme visible par l'oeil humain, qui sont réfléchies par la plaque minéralogique et que reçoit la caméra qui fonctionne en synchronisme avec la source lumineuse. On place, de préférence, la source lumineuse (10) près de l'objectif de la caméra (15) afin de minimiser l'angle de dégagement () existant entre la lumière incidente (17) et la lumière réfléchie (16).
EP91915142A 1990-08-17 1991-08-19 Dispositif de surveillance destine plus particulierement a etre utilise pour voir les plaques mineralogiques des vehicules Withdrawn EP0543904A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9018174 1990-08-17
GB909018174A GB9018174D0 (en) 1990-08-17 1990-08-17 Apparatus for reading vehicle number-plates

Publications (1)

Publication Number Publication Date
EP0543904A1 true EP0543904A1 (fr) 1993-06-02

Family

ID=10680886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91915142A Withdrawn EP0543904A1 (fr) 1990-08-17 1991-08-19 Dispositif de surveillance destine plus particulierement a etre utilise pour voir les plaques mineralogiques des vehicules

Country Status (10)

Country Link
EP (1) EP0543904A1 (fr)
JP (1) JPH06503662A (fr)
KR (1) KR930701801A (fr)
AU (1) AU8409091A (fr)
BR (1) BR9106764A (fr)
CA (1) CA2089356A1 (fr)
FI (1) FI930681A7 (fr)
GB (3) GB9018174D0 (fr)
HK (1) HK1007042A1 (fr)
WO (1) WO1992003808A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257257A (en) * 1991-06-21 1993-01-06 Christopher Ian Hughes Security apparatus
DE4225074C1 (de) * 1992-07-29 1994-02-03 Nsm Ag Vorrichtung zur Steuerung des Verschlusses einer von einer Lichtquelle mit Licht beaufschlagten CCD-Kamera
SE503707C2 (sv) * 1994-10-24 1996-08-05 Combitech Traffic Syst Ab Anordning för identifiering av fordon i ett kontrollställe
FR2749117B1 (fr) * 1996-05-21 1998-07-31 Christophel Claude Camera video notamment destinee a la telesurveillance dans l'obscurite
JP2000339589A (ja) 1999-05-25 2000-12-08 Fujitsu Ltd 車両の交通安全補助システムおよび記録媒体
GB2354898B (en) * 1999-07-07 2003-07-23 Pearpoint Ltd Vehicle licence plate imaging
FR2797081B1 (fr) * 1999-07-29 2002-10-31 Positive Procede d'identification d'un vehicule automobile immatricule et appareil d'identification de vehicule automobile correspondant
GB9927623D0 (en) * 1999-11-24 2000-01-19 Koninkl Philips Electronics Nv Illumination source
US6832728B2 (en) 2001-03-26 2004-12-21 Pips Technology, Inc. Remote indicia reading system
JP3979499B2 (ja) 2001-07-18 2007-09-19 ヒュンジャエ テック カンパニー リミテッド 監視車両を利用した被監視車両の車両番号の自動認識システム及び方法
CA2457653A1 (fr) 2001-08-16 2003-02-27 Optidtech Optical Identification Technologies Ltd. Lecteur electro-optique de codes barres retroreflechissants
DE10205250B4 (de) * 2002-02-08 2006-11-09 Funkwerk Plettac Electronic Gmbh Optisches Bandsperrenfilter und elektronische Überwachungskamera mit einem solchen Filter
US6902299B2 (en) 2003-02-27 2005-06-07 Cantronic Systems Inc. Long distance illuminator
GB2404107A (en) * 2003-07-16 2005-01-19 British Broadcasting Corp Flash-based keying
JP2010504596A (ja) * 2006-09-25 2010-02-12 トニー・メイアー 微小回折監視照明装置
US8218822B2 (en) 2007-05-14 2012-07-10 Pips Technology, Inc. Apparatus and method for recognizing the state of origin of a vehicle license plate
CN101919246A (zh) * 2007-08-08 2010-12-15 托尼·迈耶 非后向反射牌照成像系统
DE102007049637B4 (de) * 2007-10-17 2015-10-15 Audi Ag Verfahren zum Betreiben eines Leuchtsystems und eines Bilderfassungssystems eines Fahrzeugs sowie Objekterfassungssystem für ein Fahrzeug
WO2009079789A1 (fr) 2007-12-21 2009-07-02 Leddartech Inc. Procédés et systèmes de détection et de télémétrie
CN102959599B (zh) 2009-12-22 2015-07-15 莱达科技股份有限公司 用于交通检测的主动3d监控系统
GB201012178D0 (en) * 2010-07-20 2010-09-01 Telemactics Technology Llp Indicia identifying system
US8908159B2 (en) 2011-05-11 2014-12-09 Leddartech Inc. Multiple-field-of-view scannerless optical rangefinder in high ambient background light
EP2721593B1 (fr) 2011-06-17 2017-04-05 Leddartech Inc. Système et procédé de détection latérale et de caractérisation de circulation
US9235988B2 (en) 2012-03-02 2016-01-12 Leddartech Inc. System and method for multipurpose traffic detection and characterization
WO2016038536A1 (fr) 2014-09-09 2016-03-17 Leddartech Inc. Discrétisation de zone de détection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1192499B (it) * 1982-08-30 1988-04-13 Fiorello Sodi Apparecchiatura per rilevamenti e registrazioni di infrazioni stradali,con l'impiego di energia di tipo luminoso nelle bande contigue a quella visibile
GB2142738A (en) * 1983-07-02 1985-01-23 Shirley Developments Limited Stroboscope
DE3404396A1 (de) * 1984-02-08 1985-08-14 Dornier Gmbh, 7990 Friedrichshafen Vorrichtung und verfahren zur aufnahme von entfernungsbildern
FR2571506B1 (fr) * 1984-10-05 1987-01-23 Trt Telecom Radio Electr Systeme d'observation nocturne semi-actif a intensification de lumiere
EP0181412A1 (fr) * 1984-11-10 1986-05-21 Tele-Security-Foto Überwachungsanlagen GmbH Système de prise de vues de télévision
US4843461A (en) * 1985-06-25 1989-06-27 Matsushita Electric Works, Ltd. Over-door interphone system provided with a night-vision monitoring device
IT1221607B (it) * 1987-08-25 1990-07-12 Fiorello Sodi Impianto per la rilevazione e la registrazione di infrazioni alle regole di disciplina stradale,con l'impiego di laser
GB2212689B (en) * 1987-11-17 1992-01-02 Ferranti Plc Television camera system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9203808A1 *

Also Published As

Publication number Publication date
BR9106764A (pt) 1993-06-29
WO1992003808A1 (fr) 1992-03-05
FI930681L (fi) 1993-02-16
GB2248994B (en) 1995-04-05
GB9302128D0 (en) 1993-04-28
HK1007042A1 (en) 1999-03-26
AU8409091A (en) 1992-03-17
FI930681A0 (fi) 1993-02-16
KR930701801A (ko) 1993-06-12
FI930681A7 (fi) 1993-02-16
GB2248994A (en) 1992-04-22
JPH06503662A (ja) 1994-04-21
GB9117967D0 (en) 1991-10-09
CA2089356A1 (fr) 1992-02-18
GB9018174D0 (en) 1990-10-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE DE DK FR GB IT LU NL SE

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Designated state(s): AT BE DE DK FR IT LU NL SE

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Effective date: 19950105

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19950516