FI20002733A - Monitoring and control equipment for traffic lights - Google Patents

Monitoring and control equipment for traffic lights Download PDF

Info

Publication number
FI20002733A
FI20002733A FI20002733A FI20002733A FI20002733A FI 20002733 A FI20002733 A FI 20002733A FI 20002733 A FI20002733 A FI 20002733A FI 20002733 A FI20002733 A FI 20002733A FI 20002733 A FI20002733 A FI 20002733A
Authority
FI
Finland
Prior art keywords
light
leds
control
monitoring
detectors
Prior art date
Application number
FI20002733A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20002733A0 (en
FI115250B (en
Inventor
Kari Taskula
Original Assignee
Sabik Ab 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 Ab Oy filed Critical Sabik Ab Oy
Priority to FI20002733A priority Critical patent/FI115250B/en
Publication of FI20002733A0 publication Critical patent/FI20002733A0/en
Priority to AT01204845T priority patent/ATE320056T1/en
Priority to EP01204845A priority patent/EP1215641B1/en
Priority to DE60117683T priority patent/DE60117683T2/en
Publication of FI20002733A publication Critical patent/FI20002733A/en
Application granted granted Critical
Publication of FI115250B publication Critical patent/FI115250B/en

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>
FI20002733A 2000-12-13 2000-12-13 Monitoring and control equipment for traffic lights FI115250B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI20002733A FI115250B (en) 2000-12-13 2000-12-13 Monitoring and control equipment for traffic lights
AT01204845T ATE320056T1 (en) 2000-12-13 2001-12-13 DEVICE FOR MONITORING AND CONTROLLING A ROAD TRAFFIC LIGHT SIGNAL SYSTEM
EP01204845A EP1215641B1 (en) 2000-12-13 2001-12-13 Apparatus for monitoring and controlling a traffic control light
DE60117683T DE60117683T2 (en) 2000-12-13 2001-12-13 Device for monitoring and controlling a road traffic signal system

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
FI20002733A0 FI20002733A0 (en) 2000-12-13
FI20002733A true FI20002733A (en) 2002-06-14
FI115250B FI115250B (en) 2005-03-31

Family

ID=8559703

Family Applications (1)

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

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

Family Cites Families (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
GB9708861D0 (en) * 1997-04-30 1997-06-25 Signal House Limited Traffic signals
EP0974947B1 (en) * 1998-07-23 2004-12-15 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
DE60117683T2 (en) 2006-11-30
EP1215641B1 (en) 2006-03-08
FI20002733A0 (en) 2000-12-13
EP1215641A3 (en) 2004-12-15
DE60117683D1 (en) 2006-05-04
ATE320056T1 (en) 2006-03-15
FI115250B (en) 2005-03-31

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