EP1215641A3 - Apparatus for monitoring and controlling a traffic control light - Google Patents

Apparatus for monitoring and controlling a traffic control light Download PDF

Info

Publication number
EP1215641A3
EP1215641A3 EP01204845A EP01204845A EP1215641A3 EP 1215641 A3 EP1215641 A3 EP 1215641A3 EP 01204845 A EP01204845 A EP 01204845A EP 01204845 A EP01204845 A EP 01204845A EP 1215641 A3 EP1215641 A3 EP 1215641A3
Authority
EP
European Patent Office
Prior art keywords
light
leds
control
monitoring
control light
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
EP01204845A
Other languages
German (de)
French (fr)
Other versions
EP1215641A2 (en
EP1215641B1 (en
Inventor
Kari Taskula
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.)
Sabik Oy
Original Assignee
Sabik Oy
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 Sabik Oy filed Critical Sabik Oy
Publication of EP1215641A2 publication Critical patent/EP1215641A2/en
Publication of EP1215641A3 publication Critical patent/EP1215641A3/en
Application granted granted Critical
Publication of EP1215641B1 publication Critical patent/EP1215641B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1881—Wiring diagrams for power supply, control or testing
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes (LEDs)

Abstract

An apparatus for monitoring and/or controlling a traffic control light, the light source of said control light consisting of LEDs (2) connected on a circuit board (1), said control light being controlled by means of a control unit, and said control light comprising a lens dome part (3) which is fitted in front of the LEDs and contains transparent light directing elements (4), and said apparatus comprising detectors (5) disposed in connection with the LEDs used as light sources on the same side of the circuit board (1) with these, some of the light reflected from the LEDs being directed to said detectors, which are used to provide optical feedback for the monitoring and/or control of the operation of the control light. The apparatus comprises non-transparent reflectors (6) arranged between the light directing elements to reflect some of the light emitted by the LEDs (2) in the direction of illumination to the detectors (5). <IMAGE>
EP01204845A 2000-12-13 2001-12-13 Apparatus for monitoring and controlling a traffic control light Expired - Lifetime EP1215641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20002733 2000-12-13
FI20002733A FI115250B (en) 2000-12-13 2000-12-13 Monitoring and control equipment for traffic lights

Publications (3)

Publication Number Publication Date
EP1215641A2 EP1215641A2 (en) 2002-06-19
EP1215641A3 true EP1215641A3 (en) 2004-12-15
EP1215641B1 EP1215641B1 (en) 2006-03-08

Family

ID=8559703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01204845A Expired - Lifetime EP1215641B1 (en) 2000-12-13 2001-12-13 Apparatus for monitoring and controlling a traffic control light

Country Status (4)

Country Link
EP (1) EP1215641B1 (en)
AT (1) ATE320056T1 (en)
DE (1) DE60117683T2 (en)
FI (1) FI115250B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005026610A1 (en) * 2003-09-16 2005-03-24 Vega Industries Limited Improvements in and relating to sectored lights
FI117178B (en) * 2004-12-23 2006-07-14 Sabik Ab Oy LED lamp for traffic control
DE102005016363A1 (en) * 2005-04-09 2006-10-12 Aqua Signal Aktiengesellschaft Lamp used in e.g. providing signal lights, has control unit that evaluates output signals of sensor for detecting light irradiated from LED, and that controls LED based on evaluated sensor signals
US7391162B2 (en) 2005-04-12 2008-06-24 Aqua Signal Aktiengesellschaft Luminaire with LED(s) and method for operating the luminaire
GB2446410B (en) * 2007-02-07 2011-07-13 Signal House Ltd Traffic signal light
IT1396088B1 (en) * 2009-10-16 2012-11-09 Solari Di Udine S P A LUMINOUS LED SIGNALING DEVICE AND ITS CONTROL PROCEDURE
DE102010005088A1 (en) * 2010-01-15 2011-07-21 Siemens Aktiengesellschaft, 80333 light signal
CN107690218B (en) * 2017-08-31 2019-06-04 青岛海信网络科技股份有限公司 A kind of signal lamp working condition detection system and method
DE102018212585A1 (en) * 2018-07-27 2020-01-30 Siemens Aktiengesellschaft Traffic light system with protection against a mast attack

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182977A (en) * 1978-06-01 1980-01-08 Trw Inc. Constant output light emitting device
WO1998049872A1 (en) * 1997-04-30 1998-11-05 Signal House Limited Traffic signals
EP0974947A1 (en) * 1998-07-23 2000-01-26 Siemens Aktiengesellschaft Traffic light apparatus and method to monitor the traffic light apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182977A (en) * 1978-06-01 1980-01-08 Trw Inc. Constant output light emitting device
WO1998049872A1 (en) * 1997-04-30 1998-11-05 Signal House Limited Traffic signals
EP0974947A1 (en) * 1998-07-23 2000-01-26 Siemens Aktiengesellschaft Traffic light apparatus and method to monitor the traffic light apparatus

Also Published As

Publication number Publication date
EP1215641A2 (en) 2002-06-19
FI20002733A (en) 2002-06-14
DE60117683T2 (en) 2006-11-30
EP1215641B1 (en) 2006-03-08
FI20002733A0 (en) 2000-12-13
DE60117683D1 (en) 2006-05-04
ATE320056T1 (en) 2006-03-15
FI115250B (en) 2005-03-31

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