NL8004913A - Gelijkstroom-meldstelsel. - Google Patents

Gelijkstroom-meldstelsel. Download PDF

Info

Publication number
NL8004913A
NL8004913A NL8004913A NL8004913A NL8004913A NL 8004913 A NL8004913 A NL 8004913A NL 8004913 A NL8004913 A NL 8004913A NL 8004913 A NL8004913 A NL 8004913A NL 8004913 A NL8004913 A NL 8004913A
Authority
NL
Netherlands
Prior art keywords
conductor loop
signaling
resistance
devices
reporting
Prior art date
Application number
NL8004913A
Other languages
English (en)
Dutch (nl)
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
Publication of NL8004913A publication Critical patent/NL8004913A/nl

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
NL8004913A 1979-08-31 1980-08-29 Gelijkstroom-meldstelsel. NL8004913A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2935335A DE2935335C2 (de) 1979-08-31 1979-08-31 Gleichstrommeldeanlage
DE2935335 1979-08-31

Publications (1)

Publication Number Publication Date
NL8004913A true NL8004913A (nl) 1981-03-03

Family

ID=6079786

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8004913A NL8004913A (nl) 1979-08-31 1980-08-29 Gelijkstroom-meldstelsel.

Country Status (4)

Country Link
AT (1) AT384315B (it)
DE (1) DE2935335C2 (it)
IT (1) IT1132498B (it)
NL (1) NL8004913A (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2114341B (en) * 1982-01-30 1985-04-11 Ferranti Ltd Monitoring system
GB2117150B (en) * 1982-02-26 1986-03-19 Morrison John M Intruder alarm system
DE3211550C2 (de) * 1982-03-29 1985-02-14 Siemens AG, 1000 Berlin und 8000 München Gleichstrommeldeanlage
GB2138187B (en) * 1983-04-08 1986-09-10 Morrison John M Burglar alarm system
ATE43732T1 (de) * 1984-09-12 1989-06-15 Siemens Ag Verfahren und vorrichtung zur melderidentifizierung in einer gefahrenmeldeanlage.
EP0178451B1 (de) * 1984-09-12 1989-05-03 Siemens Aktiengesellschaft Einrichtung zur Melderidentifizierung in einer Gefahrenmeldeanlage
EP0179248B1 (de) * 1984-09-12 1989-05-31 Siemens Aktiengesellschaft Einrichtung zur Melderidentifizierung in einer Gefahrenmeldeanlage
DE3620681A1 (de) * 1986-06-20 1987-12-23 Merk Gmbh Telefonbau Fried Schaltungsanordnung zur identifizierung von gefahrenmeldern
DE3719988A1 (de) * 1987-06-15 1988-12-29 Total Feuerschutz Gmbh Einzelidentifikation
FR2664408A1 (fr) * 1990-07-04 1992-01-10 Spie Trindel Installation de surveillance et d'alarme.
EP0602570B1 (de) * 1992-12-18 1999-05-06 Siemens Aktiengesellschaft Gefahrenmeldeanlage
DE10051329C2 (de) † 2000-10-10 2003-12-11 Job Lizenz Gmbh & Co Kg Gefahrenmeldeanlage
DE102010056006B4 (de) 2010-12-23 2019-05-09 Volkswagen Ag Verfahren zur Überwachung eines Leitungsnetzes für ein Fahrzeug sowie entsprechende Überwachungsvorrichtung und Fahrzeug
US9633554B1 (en) * 2015-10-14 2017-04-25 Honeywell International Inc. Fire alarm loop calibration and fault location
EP3540706B1 (en) * 2018-03-14 2020-10-21 Siemens Schweiz AG System and method for addressing distant actuated safety devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873055C (de) * 1950-04-02 1953-04-09 J C Eckardt A G Elektrische UEberwachungseinrichtung
SE402660B (sv) * 1970-11-12 1978-07-10 Securitas Int Ab Brandalarmanleggning
DE2705045A1 (de) * 1977-02-08 1978-08-10 Howaldtswerke Deutsche Werft Isolationsueberwachung fuer meldeleitungen mit abzweigungen in ueberwachungssystemen
DE2749660A1 (de) * 1977-11-05 1979-05-10 Licentia Gmbh Melde- und alarmeinrichtung mit einem oder mehreren binaeren meldern

Also Published As

Publication number Publication date
ATA436180A (de) 1987-03-15
AT384315B (de) 1987-10-27
DE2935335A1 (de) 1981-03-19
IT1132498B (it) 1986-07-02
IT8024325A0 (it) 1980-08-28
DE2935335C2 (de) 1985-08-08

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed