DK0532787T3 - Device for operation of hazard alarms - Google Patents

Device for operation of hazard alarms

Info

Publication number
DK0532787T3
DK0532787T3 DK91115957.2T DK91115957T DK0532787T3 DK 0532787 T3 DK0532787 T3 DK 0532787T3 DK 91115957 T DK91115957 T DK 91115957T DK 0532787 T3 DK0532787 T3 DK 0532787T3
Authority
DK
Denmark
Prior art keywords
loop
signalling
separating member
case
hazard
Prior art date
Application number
DK91115957.2T
Other languages
Danish (da)
Inventor
Peer Dr-Ing Thilo
Klaus Kaiser
Otto Walter Dipl-Ing Moser
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 DK0532787T3 publication Critical patent/DK0532787T3/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Emergency Alarm Devices (AREA)
  • Cookers (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The detectors (M1...Mn) are arranged in a loop-shaped double line (signalling loop MS) in a hazard detection system. Approximately in the centre of the signalling loop (MS), a separating member (TG) is arranged which keeps the signalling loop (MS) open in interference-free operation (normal case), each loop segment (TS) being operated as spur or star line. In the case of a fault (short circuit, line interruption), the separating member (TG) closes the signalling loop (MS), the loop (MS) being operated from both sides (A1/A2). The separating member (TG) can be driven by the central station (Z) of the hazard signalling system from one side (Ma1/Mb1) or the other side (Ma2/Mb2). The separating member (TG) exhibits a control device (SG) which, in dependence on the operating state (normal/fault case) drives a switch (Sa/Sb) which is arranged in one of the two wires (a/b) of the signalling loop (MS). <IMAGE>
DK91115957.2T 1991-09-19 1991-09-19 Device for operation of hazard alarms DK0532787T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91115957A EP0532787B1 (en) 1991-09-19 1991-09-19 Device for operating hazard detectors

Publications (1)

Publication Number Publication Date
DK0532787T3 true DK0532787T3 (en) 1996-03-25

Family

ID=8207171

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91115957.2T DK0532787T3 (en) 1991-09-19 1991-09-19 Device for operation of hazard alarms

Country Status (6)

Country Link
EP (1) EP0532787B1 (en)
AT (1) ATE131648T1 (en)
DE (1) DE59107087D1 (en)
DK (1) DK0532787T3 (en)
ES (1) ES2080208T3 (en)
GR (1) GR3018512T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326487C2 (en) * 1992-09-16 1995-02-09 Konrad Michael Dipl Ing Weigl Adaptive filter
DE4322841C2 (en) * 1993-07-08 1996-02-15 Zettler Gmbh Hazard detection system
DE4426466C2 (en) * 1994-07-26 2002-06-20 Siemens Ag Arrangement and method for operating hazard detectors
DE19800049A1 (en) * 1998-01-02 1999-07-08 Philips Patentverwaltung Arrangement for transmitting data and / or energy with a separation unit
DE10051329C2 (en) * 2000-10-10 2003-12-11 Job Lizenz Gmbh & Co Kg Alarm system
DE102005037047B3 (en) * 2005-08-05 2006-12-28 Novar Gmbh Building control and hazard alert system, has bus substation circuit lying between parallely connected direct current connections of bridges and measuring voltage ratios and their polarity at alternating voltage inputs of bridges
EP2833333B1 (en) * 2013-07-31 2018-12-19 Honeywell Life Safety Austria GmbH Bus system and method for operating a bus system
WO2019242863A1 (en) * 2018-06-21 2019-12-26 Autronica Fire & Security As System and method for startup of a detector loop

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8431883D0 (en) * 1984-12-18 1985-01-30 Gent Ltd Transmission system
DE3637681A1 (en) * 1986-11-05 1988-05-19 Siemens Ag Alarm signalling system according to the pulse signalling system

Also Published As

Publication number Publication date
DE59107087D1 (en) 1996-01-25
ES2080208T3 (en) 1996-02-01
EP0532787B1 (en) 1995-12-13
GR3018512T3 (en) 1996-03-31
EP0532787A1 (en) 1993-03-24
ATE131648T1 (en) 1995-12-15

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