GR3022040T3 - Hazard detection system - Google Patents

Hazard detection system

Info

Publication number
GR3022040T3
GR3022040T3 GR960403467T GR960403467T GR3022040T3 GR 3022040 T3 GR3022040 T3 GR 3022040T3 GR 960403467 T GR960403467 T GR 960403467T GR 960403467 T GR960403467 T GR 960403467T GR 3022040 T3 GR3022040 T3 GR 3022040T3
Authority
GR
Greece
Prior art keywords
activated
control signal
central unit
detection system
detectors
Prior art date
Application number
GR960403467T
Other languages
Greek (el)
Inventor
Peer Dr-Ing Thilo
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 GR3022040T3 publication Critical patent/GR3022040T3/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
    • G08B26/001—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Hazard detection system with a central unit and at least one primary detection line connected to it, on which a multiplicity of detectors are disposed; these detectors are polled cyclically by the central unit and have at least one sensor which detects any hazard, a transmission device which can be automatically de-activated and re-activated by means of a control signal, an address memory provided with an address during the initialisation of the system and a switch which interrupts or through-connects the line and the transmission device of a respective detector may be in one of the following operating modes: it is constantly activated and thus ready to receive control signals and to transmit signals in every polling cycle, it is activated in the i-th polling cycle only, it is activated in the event of an alarm only, on the basis of a control signal from the sensor, it is activated on the basis of a control signal from the central unit.
GR960403467T 1990-12-18 1996-12-13 Hazard detection system GR3022040T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4040524 1990-12-18

Publications (1)

Publication Number Publication Date
GR3022040T3 true GR3022040T3 (en) 1997-03-31

Family

ID=6420657

Family Applications (1)

Application Number Title Priority Date Filing Date
GR960403467T GR3022040T3 (en) 1990-12-18 1996-12-13 Hazard detection system

Country Status (5)

Country Link
EP (1) EP0491216B1 (en)
AT (1) ATE144063T1 (en)
DE (1) DE59108262D1 (en)
ES (1) ES2092537T3 (en)
GR (1) GR3022040T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254125B1 (en) * 1986-07-10 1991-02-13 Siemens Aktiengesellschaft Danger signalling system
US4829297A (en) * 1987-05-08 1989-05-09 Allen-Bradley Company, Inc. Communication network polling technique
EP0362798B1 (en) * 1988-10-06 1994-02-09 Siemens Aktiengesellschaft Method for the energy-saving operation of risk detectors in a risk detection arrangement

Also Published As

Publication number Publication date
EP0491216B1 (en) 1996-10-09
EP0491216A2 (en) 1992-06-24
EP0491216A3 (en) 1992-12-09
DE59108262D1 (en) 1996-11-14
ES2092537T3 (en) 1996-12-01
ATE144063T1 (en) 1996-10-15

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