GB2157903B - Lamp monitoring apparatus - Google Patents

Lamp monitoring apparatus

Info

Publication number
GB2157903B
GB2157903B GB08410448A GB8410448A GB2157903B GB 2157903 B GB2157903 B GB 2157903B GB 08410448 A GB08410448 A GB 08410448A GB 8410448 A GB8410448 A GB 8410448A GB 2157903 B GB2157903 B GB 2157903B
Authority
GB
United Kingdom
Prior art keywords
monitoring apparatus
lamp monitoring
lamp
monitoring
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.)
Expired
Application number
GB08410448A
Other versions
GB2157903A (en
GB8410448D0 (en
Inventor
John P Burgess
Eric W Burdis
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB08410448A priority Critical patent/GB2157903B/en
Publication of GB8410448D0 publication Critical patent/GB8410448D0/en
Publication of GB2157903A publication Critical patent/GB2157903A/en
Application granted granted Critical
Publication of GB2157903B publication Critical patent/GB2157903B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB08410448A 1984-04-24 1984-04-24 Lamp monitoring apparatus Expired GB2157903B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08410448A GB2157903B (en) 1984-04-24 1984-04-24 Lamp monitoring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08410448A GB2157903B (en) 1984-04-24 1984-04-24 Lamp monitoring apparatus

Publications (3)

Publication Number Publication Date
GB8410448D0 GB8410448D0 (en) 1984-05-31
GB2157903A GB2157903A (en) 1985-10-30
GB2157903B true GB2157903B (en) 1987-06-17

Family

ID=10559991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08410448A Expired GB2157903B (en) 1984-04-24 1984-04-24 Lamp monitoring apparatus

Country Status (1)

Country Link
GB (1) GB2157903B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239653A1 (en) * 1986-03-29 1987-10-07 TELETTRA Telefonia Elettronica e Radio S.p.A. System for feeding and controlling low intensity obstruction lights
DE3616506C2 (en) * 1986-05-16 1995-11-30 Hella Kg Hueck & Co Method and device for monitoring electrical consumers
FR2688067B1 (en) * 1992-02-28 1998-04-17 Spie Trindel METHOD AND DEVICE FOR MONITORING AN ELECTRICAL CIRCUIT AND CIRCUIT EQUIPPED WITH SUCH A DEVICE.
JPH06295652A (en) * 1993-04-06 1994-10-21 Omron Corp Relay terminal
IT1264183B1 (en) * 1993-07-30 1996-09-23 Metas Sa MICROPROCESSOR DEVICE FOR THE CONTROL AND MANAGEMENT OF LIGHTING LAMPS.
FR2709224B1 (en) * 1993-12-16 1995-11-03 Godin Patrick Method and apparatus for detecting faults in electrical charges.
FR2768589B1 (en) * 1997-09-16 1999-11-12 Sagem METHOD FOR MONITORING A PLURALITY OF LIGHT SOURCES FOR CONTROLLING TRAFFIC AT A CROSSING
DE102004057449B3 (en) * 2004-11-24 2006-07-20 Siemens Ag Circuit for controlling and monitoring a plurality of signal lamps
WO2007122546A2 (en) * 2006-04-21 2007-11-01 Koninklijke Philips Electronics N.V. Method and device for monitoring the condition of halogen bulbs in vehicle headlights

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081994B (en) * 1980-08-11 1983-04-07 South Eastern Elec Board Pulse sampled e l c b

Also Published As

Publication number Publication date
GB2157903A (en) 1985-10-30
GB8410448D0 (en) 1984-05-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee