EP0144250A3 - Système détecteur de fumée avec contrôle de l'hyper sensibilité naissante - Google Patents

Système détecteur de fumée avec contrôle de l'hyper sensibilité naissante Download PDF

Info

Publication number
EP0144250A3
EP0144250A3 EP84308529A EP84308529A EP0144250A3 EP 0144250 A3 EP0144250 A3 EP 0144250A3 EP 84308529 A EP84308529 A EP 84308529A EP 84308529 A EP84308529 A EP 84308529A EP 0144250 A3 EP0144250 A3 EP 0144250A3
Authority
EP
European Patent Office
Prior art keywords
incipient
hyper
detector
alarm
fire alarm
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Withdrawn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
EP84308529A
Other languages
German (de)
English (en)
Other versions
EP0144250A2 (fr
Inventor
David Cecil C/O Sound Diffusion Plc Ryall
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.)
SOUND DIFFUSION PLC
Original Assignee
SOUND DIFFUSION PLC
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 SOUND DIFFUSION PLC filed Critical SOUND DIFFUSION PLC
Publication of EP0144250A2 publication Critical patent/EP0144250A2/fr
Publication of EP0144250A3 publication Critical patent/EP0144250A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
EP84308529A 1983-12-08 1984-12-07 Système détecteur de fumée avec contrôle de l'hyper sensibilité naissante Withdrawn EP0144250A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08332750A GB2151058A (en) 1983-12-08 1983-12-08 Fire alarm systems with incipient hyper-sensitivity monitoring
GB8332750 1983-12-08

Publications (2)

Publication Number Publication Date
EP0144250A2 EP0144250A2 (fr) 1985-06-12
EP0144250A3 true EP0144250A3 (fr) 1987-09-16

Family

ID=10553005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84308529A Withdrawn EP0144250A3 (fr) 1983-12-08 1984-12-07 Système détecteur de fumée avec contrôle de l'hyper sensibilité naissante

Country Status (2)

Country Link
EP (1) EP0144250A3 (fr)
GB (1) GB2151058A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3202793B2 (ja) * 1992-05-28 2001-08-27 能美防災株式会社 火災感知器の感度測定装置
FR2934401B1 (fr) * 2008-07-28 2010-08-13 Legrand France Installation perfectionnee de securite et procede de surveillance correspondant
US9030314B2 (en) 2013-03-15 2015-05-12 Tyco Fire & Security Gmbh Method for inspecting and testing notification appliances in alarm systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2038795A1 (de) * 1969-09-16 1971-04-08 Cerberus Ag Vorrichtung zur Leitungsueberwachung von Feuermeldeanlagen
GB1365018A (en) * 1972-11-23 1974-08-29 Hochiki Co Ionization type smoke detector
GB2069205A (en) * 1980-02-06 1981-08-19 Maxted C W A device for use in an electrical circuit and comprising two separable parts
US4369435A (en) * 1979-07-27 1983-01-18 Hochiki Kabushiki Kaisha Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202976A (en) * 1959-12-03 1965-08-24 Scully Signal Co Supervisory system with failure discrimination
US3406389A (en) * 1965-08-23 1968-10-15 Whittaker Corp Fire warning systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2038795A1 (de) * 1969-09-16 1971-04-08 Cerberus Ag Vorrichtung zur Leitungsueberwachung von Feuermeldeanlagen
GB1365018A (en) * 1972-11-23 1974-08-29 Hochiki Co Ionization type smoke detector
US4369435A (en) * 1979-07-27 1983-01-18 Hochiki Kabushiki Kaisha Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station
GB2069205A (en) * 1980-02-06 1981-08-19 Maxted C W A device for use in an electrical circuit and comprising two separable parts

Also Published As

Publication number Publication date
EP0144250A2 (fr) 1985-06-12
GB8332750D0 (en) 1984-01-18
GB2151058A (en) 1985-07-10

Similar Documents

Publication Publication Date Title
DE3273421D1 (en) Method and arrangement for disturbance detection in hazard signalling systems, especially fire signalling systems
SE8402298D0 (sv) Fire alarm system
AU561595B2 (en) Triple interrogation of sensor alarm system
JPS576988A (en) Fire detecting method and fire alarm device
JPS5730098A (en) Method of transmitting measured value in fire alarm unit and device for executing same method
EP0144250A3 (fr) Système détecteur de fumée avec contrôle de l'hyper sensibilité naissante
US4222046A (en) Abnormal condition responsive means with periodic high sensitivity
GB1389273A (en) Pulse reflection test means for pressure surveillance detector
PH21969A (en) Photoelectric safety screen with stray source detection
GB1353615A (en) Fire detection systems
JPS57207454A (en) Loop system data highway system
JPS56149894A (en) Alarm control device
GB1450176A (en) Arrangement for automatically initiating a state of higher security in installations for example railway control installations wherein substations are cyclically called by a central station
JPS57196645A (en) Failure detecting method in data transmission
FR2514591B1 (fr) Dispositif de reduction du taux de fausses alarmes et recepteur de surveillance comportant un tel dispositif
JPS5418604A (en) Optical communication system
JPS563579A (en) Detecting method and device for shortcircuit at gto inverter arm
FR2592511A1 (fr) Systeme d'alarme pour la detection et la signalisation d'une intrusion dans un local
JPS5376786A (en) Receiver of fire alarm system
JPS52146595A (en) Fire alarm facilities
JPS52146104A (en) Line monitoring system
JPS5491017A (en) Remote control supervisory circuit for variable equalizer
JPS62144450A (ja) 線路監視方式
JPS56120235A (en) Line monitoring system
JPS55147845A (en) Receiver monitoring system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19841217

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880317

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RYALL, DAVID CECILC/O SOUND DIFFUSION PLC