ATE107462T1 - CIRCUIT FOR FUNCTIONAL MONITORING OF TWIN FILAMENT LAMPS IN TRAFFIC SIGNAL SYSTEMS. - Google Patents

CIRCUIT FOR FUNCTIONAL MONITORING OF TWIN FILAMENT LAMPS IN TRAFFIC SIGNAL SYSTEMS.

Info

Publication number
ATE107462T1
ATE107462T1 AT90123329T AT90123329T ATE107462T1 AT E107462 T1 ATE107462 T1 AT E107462T1 AT 90123329 T AT90123329 T AT 90123329T AT 90123329 T AT90123329 T AT 90123329T AT E107462 T1 ATE107462 T1 AT E107462T1
Authority
AT
Austria
Prior art keywords
circuit
filament
signalling
alarm
traffic signal
Prior art date
Application number
AT90123329T
Other languages
German (de)
Inventor
Hellmuth Fricke
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE107462T1 publication Critical patent/ATE107462T1/en

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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/10—Circuits providing for substitution of the light source in case of its failure

Abstract

The circuit is designed such that it assumes a first switching state when a monitored signalling lamp (L) is operating correctly, and a second switching state in the event of a fault. A fault is regarded as the interruption of the supply circuit passing through the main filament (HF) when the signalling lamp is switched on and, when the main filament is intact, lack of readiness of the standby filament (NF) of this signalling lamp to switch on. An alarm (M), which is connected in series with the standby filament of the signalling lamp in a high-resistance manner, is used to emit a monitoring alarm. This alarm is short-circuited by the switching means (JH/1) of an indicator (JH) connected in series with the main filament, when the main filament circuit is broken, and is also deactivated when the standby filament circuit is broken. The circuit is particularly suitable for functional monitoring of signalling lamps in railway signalling lights. <IMAGE>
AT90123329T 1989-12-14 1990-12-05 CIRCUIT FOR FUNCTIONAL MONITORING OF TWIN FILAMENT LAMPS IN TRAFFIC SIGNAL SYSTEMS. ATE107462T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3941327A DE3941327A1 (en) 1989-12-14 1989-12-14 CIRCUIT FOR MONITORING THE FUNCTION OF DOUBLE-THREAD LAMPS IN LIGHT SIGNALS

Publications (1)

Publication Number Publication Date
ATE107462T1 true ATE107462T1 (en) 1994-07-15

Family

ID=6395469

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90123329T ATE107462T1 (en) 1989-12-14 1990-12-05 CIRCUIT FOR FUNCTIONAL MONITORING OF TWIN FILAMENT LAMPS IN TRAFFIC SIGNAL SYSTEMS.

Country Status (6)

Country Link
EP (1) EP0432623B1 (en)
AT (1) ATE107462T1 (en)
DE (2) DE3941327A1 (en)
DK (1) DK0432623T3 (en)
ES (1) ES2056351T3 (en)
FI (1) FI97675C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948718C2 (en) * 1999-09-30 2003-02-27 Siemens Ag Circuit for operating a luminous sign from a light signal circuit for signal lamps
CN112201537B (en) * 2020-10-12 2023-10-03 天津理工大学 AC filament conversion relay and on-line monitoring method for reliability thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181792B (en) * 1963-06-29 1964-11-19 Pintsch Bamag Ag Monitoring circuit for main and secondary threads of incandescent lamps, especially signal lamps
DE1566901A1 (en) * 1967-03-21 1970-04-30 Licentia Gmbh Arrangement for monitoring signal lamps for thread breakage
NL178634C (en) * 1978-01-02 1986-04-16 Philips Nv DEVICE FOR DETECTING UNWANTED SIGNAL COMBINATIONS OF TWO SIGNAL LIGHTS IN TRAFFIC LIGHTS.
US4380718A (en) * 1981-05-22 1983-04-19 Kelsey-Hayes Co. Trailer marker light substitution circuit

Also Published As

Publication number Publication date
FI906151A0 (en) 1990-12-13
DE59006141D1 (en) 1994-07-21
ES2056351T3 (en) 1994-10-01
FI97675C (en) 1997-01-27
EP0432623B1 (en) 1994-06-15
FI97675B (en) 1996-10-15
EP0432623A1 (en) 1991-06-19
DE3941327A1 (en) 1991-06-20
DK0432623T3 (en) 1994-10-24
FI906151A (en) 1991-06-15

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee