EP0243928A3 - Danger signalling system - Google Patents

Danger signalling system Download PDF

Info

Publication number
EP0243928A3
EP0243928A3 EP87106112A EP87106112A EP0243928A3 EP 0243928 A3 EP0243928 A3 EP 0243928A3 EP 87106112 A EP87106112 A EP 87106112A EP 87106112 A EP87106112 A EP 87106112A EP 0243928 A3 EP0243928 A3 EP 0243928A3
Authority
EP
European Patent Office
Prior art keywords
line
detector
detection
control circuit
voltage
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.)
Withdrawn
Application number
EP87106112A
Other languages
German (de)
French (fr)
Other versions
EP0243928A2 (en
Inventor
Wolfgang Seidel
Eckhard Schultz
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.)
Wincor Nixdorf International GmbH
Nixdorf Computer AG
Original Assignee
Wincor Nixdorf International GmbH
Nixdorf Computer 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 Wincor Nixdorf International GmbH, Nixdorf Computer AG filed Critical Wincor Nixdorf International GmbH
Publication of EP0243928A2 publication Critical patent/EP0243928A2/en
Publication of EP0243928A3 publication Critical patent/EP0243928A3/en
Withdrawn legal-status Critical Current

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)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Bei einer Gefahrenmeldeanlage, umfassend eine Zentrale (10), mindestens eine zweiadrige Meldelinie (14) mit einer Mehrzahl von Meldern (20) und eine die Meldelinie (14) mit der Zentrale (10) verbindende Liniensteuerschaltung (12), wobei die Meldelinie (14) in jedem Melder (20) un­ terbrechende Schalter (22) nach dem Anlegen einer Lin­ ienspannung an einem Ende der Meldelinie (14) sukzessiv schließbar sind und wobei die Liniensteuerschaltung (12) einen Zähler zum Zählen der durch das Schließen der Schal­ ter mit der Liniensteuerschaltung verbundenen Melder aufweist, ist die Meldelinie (14) wahlweise von ihrem einen und/oder ihrem anderen Ende her betreibbar. Der Melder (20) umfaßt eine Betriebsartenwahlschaltung zum Umschalten zwischen einer Initialisierungsphase und einer Dauerbe­ triebsphase, eine Linienspannungsabfrageschaltung, die in der Initialisierungsphase bei Änderung der Linienspannung auf ein erstes Spannungsniveau ein Schließen des Schalters (22) bewirkt, und eine Meldererkennungsschaltung zur Speicherung einer von der Liniensteuerschaltung während der Initialisierungsphase vorgebbaren Melderadresse und zur Identifizierung des Melders (20), von dem im Dauerbe­ trieb der Meldelinie (14) eine Linienstromerhöhung ausge­ gangen ist. In a hazard alarm system, comprising a Central (10), at least one two-wire detection line (14) with a plurality of detectors (20) and one the detection line (14) line control circuit (12) connecting to the center (10), the zone (14) in each detector (20) un breaking switch (22) after applying a line The voltage at one end of the detection line (14) successively are closable and the line control circuit (12) a counter for counting by closing the scarf ter connected to the line control circuit has, the detection line (14) is optionally one of them and / or operable at its other end. The detector (20) includes an operating mode selection circuit for switching between an initialization phase and a permanent period drive phase, a line voltage detection circuit, which in the initialization phase when the line voltage changes closing the switch to a first voltage level (22), and a detector detection circuit for Storage of a line control circuit during the detector address that can be specified during the initialization phase and to identify the detector (20), of which the permanent drove the reporting line (14) a line current increase gone.

EP87106112A 1986-04-30 1987-04-28 Danger signalling system Withdrawn EP0243928A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3614692 1986-04-30
DE19863614692 DE3614692A1 (en) 1986-04-30 1986-04-30 DANGER REPORTING SYSTEM

Publications (2)

Publication Number Publication Date
EP0243928A2 EP0243928A2 (en) 1987-11-04
EP0243928A3 true EP0243928A3 (en) 1989-02-08

Family

ID=6299901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106112A Withdrawn EP0243928A3 (en) 1986-04-30 1987-04-28 Danger signalling system

Country Status (2)

Country Link
EP (1) EP0243928A3 (en)
DE (1) DE3614692A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806993A1 (en) * 1988-03-03 1989-09-14 Preussag Ag Feuerschutz Danger detecting system (danger warning system, alarm system)
EP0468097B1 (en) * 1990-07-26 1994-09-07 Siemens Aktiengesellschaft Danger signal appliance
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641489A1 (en) * 1976-09-15 1978-03-16 Siemens Ag PROCEDURE FOR TRANSFERRING DIFFERENT ANALOGUE MEASURED VALUES TO A CONTROL UNIT OF SEVERAL FIRE DETECTORS LOCATING IN A CHAIN ON A SIGNAL LINE
EP0042501A1 (en) * 1980-06-23 1981-12-30 Cerberus Ag Device for the transmission of measured values in a fire warning system
EP0093872A1 (en) * 1982-04-28 1983-11-16 Cerberus Ag Method for the transmission of measured values in a control system
EP0191239A1 (en) * 1984-12-18 1986-08-20 Gent Limited Information transmission system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556062A (en) * 1975-08-28 1979-11-21 Sumitomo Chemical Co Centralised monitoring system for gas leakage
DE2836760C2 (en) * 1978-08-23 1983-11-17 Dr. Alfred Ristow GmbH & Co, 7500 Karlsruhe Electronic remote monitoring system
CA1178678A (en) * 1981-03-13 1984-11-27 John M. Wynne Bidirectional, interactive fire detection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641489A1 (en) * 1976-09-15 1978-03-16 Siemens Ag PROCEDURE FOR TRANSFERRING DIFFERENT ANALOGUE MEASURED VALUES TO A CONTROL UNIT OF SEVERAL FIRE DETECTORS LOCATING IN A CHAIN ON A SIGNAL LINE
EP0042501A1 (en) * 1980-06-23 1981-12-30 Cerberus Ag Device for the transmission of measured values in a fire warning system
EP0093872A1 (en) * 1982-04-28 1983-11-16 Cerberus Ag Method for the transmission of measured values in a control system
EP0191239A1 (en) * 1984-12-18 1986-08-20 Gent Limited Information transmission system

Also Published As

Publication number Publication date
DE3614692A1 (en) 1987-11-05
DE3614692C2 (en) 1989-02-16
EP0243928A2 (en) 1987-11-04

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Inventor name: SCHULTZ, ECKHARD

Inventor name: SEIDEL, WOLFGANG