EP0975203A3 - Monitoring of illumination for telephone booths - Google Patents

Monitoring of illumination for telephone booths Download PDF

Info

Publication number
EP0975203A3
EP0975203A3 EP99108124A EP99108124A EP0975203A3 EP 0975203 A3 EP0975203 A3 EP 0975203A3 EP 99108124 A EP99108124 A EP 99108124A EP 99108124 A EP99108124 A EP 99108124A EP 0975203 A3 EP0975203 A3 EP 0975203A3
Authority
EP
European Patent Office
Prior art keywords
light
value
illumination
monitoring
signaled
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
EP99108124A
Other languages
German (de)
French (fr)
Other versions
EP0975203B1 (en
EP0975203A2 (en
Inventor
Dagmar Dipl.-Ing. Brandt
Bernd Kunz
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.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom AG
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 Deutsche Telekom AG filed Critical Deutsche Telekom AG
Publication of EP0975203A2 publication Critical patent/EP0975203A2/en
Publication of EP0975203A3 publication Critical patent/EP0975203A3/en
Application granted granted Critical
Publication of EP0975203B1 publication Critical patent/EP0975203B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Telephonic Communication Services (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Alarm Systems (AREA)
  • Prepayment Telephone Systems (AREA)
  • Audible And Visible Signals (AREA)

Abstract

The method involves regularly checking the light intensity in the cubicle and detecting a fault based on preset values for light or dark. Faults are indicated for service personnel or signaled to a background system. The measurement circuit is activated at a predefined time at which the lighting is known to be intact. The light intensity is measured on successive days at a predefined time when the lighting should be on, and a value for light or dark is determined and stored. The measured value is compared with the stored value and a fault detected and indicated or signaled if they disagree. An independent claim is also included for a circuit for implementing the method.
EP99108124A 1998-07-24 1999-04-24 Monitoring of illumination for telephone booths Expired - Lifetime EP0975203B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833274 1998-07-24
DE19833274A DE19833274C1 (en) 1998-07-24 1998-07-24 Lighting monitoring for public telephone cubicles

Publications (3)

Publication Number Publication Date
EP0975203A2 EP0975203A2 (en) 2000-01-26
EP0975203A3 true EP0975203A3 (en) 2001-04-11
EP0975203B1 EP0975203B1 (en) 2003-07-09

Family

ID=7875122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108124A Expired - Lifetime EP0975203B1 (en) 1998-07-24 1999-04-24 Monitoring of illumination for telephone booths

Country Status (4)

Country Link
EP (1) EP0975203B1 (en)
AT (1) ATE244980T1 (en)
DE (2) DE19833274C1 (en)
ES (1) ES2204025T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10227435A1 (en) * 2002-06-20 2004-01-15 Abb Patent Gmbh Motion detectors and twilight switches with a device for setting the light wave, as well as methods for setting the light threshold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507655A (en) * 1981-05-14 1985-03-26 Guy Cosse Memory device for lighting control purposes
FR2709224A1 (en) * 1993-12-16 1995-02-24 Godin Patrick Method and apparatus for detecting electrical load defects
FR2750237A1 (en) * 1996-06-21 1997-12-26 Digiline Ind Electronic monitoring method for public telephone booths

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601665A1 (en) * 1986-01-21 1987-07-23 Gerda Schmidt Method for determining the optimum operating life of at least one current-consuming light source, especially a fluorescent tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507655A (en) * 1981-05-14 1985-03-26 Guy Cosse Memory device for lighting control purposes
FR2709224A1 (en) * 1993-12-16 1995-02-24 Godin Patrick Method and apparatus for detecting electrical load defects
FR2750237A1 (en) * 1996-06-21 1997-12-26 Digiline Ind Electronic monitoring method for public telephone booths

Also Published As

Publication number Publication date
EP0975203B1 (en) 2003-07-09
ATE244980T1 (en) 2003-07-15
ES2204025T3 (en) 2004-04-16
DE59906239D1 (en) 2003-08-14
EP0975203A2 (en) 2000-01-26
DE19833274C1 (en) 1999-10-07

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