ATE101740T1 - PROCEDURE FOR DATA TRANSMISSION IN AN ALARM SYSTEM. - Google Patents

PROCEDURE FOR DATA TRANSMISSION IN AN ALARM SYSTEM.

Info

Publication number
ATE101740T1
ATE101740T1 AT89111766T AT89111766T ATE101740T1 AT E101740 T1 ATE101740 T1 AT E101740T1 AT 89111766 T AT89111766 T AT 89111766T AT 89111766 T AT89111766 T AT 89111766T AT E101740 T1 ATE101740 T1 AT E101740T1
Authority
AT
Austria
Prior art keywords
signalling
alarm
devices
centre
switched
Prior art date
Application number
AT89111766T
Other languages
German (de)
Inventor
Peer Dr-Ing Thilo
Klaus Kaiser
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 ATE101740T1 publication Critical patent/ATE101740T1/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)
  • Time-Division Multiplex Systems (AREA)

Abstract

The alarm signalling centre has several signalling lines and for each signalling line a multiplicity of alarm signalling devices, which can be connected in the form of a chain and have different signalling priorities or signalling rates. The alarm signalling devices are cyclically interrogated by the centre for their information signals and can be selected by means of a control signal. Alarm signalling devices having a low signalling rate are switched to an inactive state for a predeterminable period of time when the alarm signalling system is taken into operation or by means of the control signal, in which state these signalling devices do not output any information signal during the interrogation for this time and switch through to the next alarm signalling device, at least in an accelerated manner. The alarm signalling devices having a low signalling rate can be switched to be inactive at particular times. The duration can be determined by a signalling device-internal timer or by a signalling device-internal counter for the interrogations.
AT89111766T 1989-06-28 1989-06-28 PROCEDURE FOR DATA TRANSMISSION IN AN ALARM SYSTEM. ATE101740T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89111766A EP0404976B1 (en) 1989-06-28 1989-06-28 Method for data transmission in an alarm signalling device

Publications (1)

Publication Number Publication Date
ATE101740T1 true ATE101740T1 (en) 1994-03-15

Family

ID=8201543

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89111766T ATE101740T1 (en) 1989-06-28 1989-06-28 PROCEDURE FOR DATA TRANSMISSION IN AN ALARM SYSTEM.

Country Status (4)

Country Link
EP (1) EP0404976B1 (en)
AT (1) ATE101740T1 (en)
DE (1) DE58907006D1 (en)
ES (1) ES2048792T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310127A1 (en) * 1973-03-01 1974-09-05 Licentia Gmbh INTEGRATED HAZARD REPORTING SYSTEM
DE2533382C2 (en) * 1975-07-25 1980-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method and device for the transmission of measured values in a fire alarm system
DE2533354C3 (en) * 1975-07-25 1979-08-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for transmitting control commands in a fire protection system
EP0254125B1 (en) * 1986-07-10 1991-02-13 Siemens Aktiengesellschaft Danger signalling system

Also Published As

Publication number Publication date
EP0404976B1 (en) 1994-02-16
ES2048792T3 (en) 1994-04-01
EP0404976A1 (en) 1991-01-02
DE58907006D1 (en) 1994-03-24

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