CA1217541A - Method of and apparatus for signalling an alarm - Google Patents

Method of and apparatus for signalling an alarm

Info

Publication number
CA1217541A
CA1217541A CA000465366A CA465366A CA1217541A CA 1217541 A CA1217541 A CA 1217541A CA 000465366 A CA000465366 A CA 000465366A CA 465366 A CA465366 A CA 465366A CA 1217541 A CA1217541 A CA 1217541A
Authority
CA
Canada
Prior art keywords
time period
test time
detector
starting
predetermined
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.)
Expired
Application number
CA000465366A
Other languages
English (en)
French (fr)
Inventor
Andreas Schweidweiler
Jurg Muggli
Alfred Wuthrich
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.)
Cerberus AG
Original Assignee
Cerberus 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 Cerberus AG filed Critical Cerberus AG
Application granted granted Critical
Publication of CA1217541A publication Critical patent/CA1217541A/en
Expired 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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • 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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements
    • G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components

Landscapes

  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Emergency Alarm Devices (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Tumbler Switches (AREA)
  • Electromechanical Clocks (AREA)
  • Burglar Alarm Systems (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Electrophonic Musical Instruments (AREA)
CA000465366A 1983-10-17 1984-10-12 Method of and apparatus for signalling an alarm Expired CA1217541A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH563383 1983-10-17
CH5633/83-2 1983-10-17

Publications (1)

Publication Number Publication Date
CA1217541A true CA1217541A (en) 1987-02-03

Family

ID=4296874

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000465366A Expired CA1217541A (en) 1983-10-17 1984-10-12 Method of and apparatus for signalling an alarm

Country Status (11)

Country Link
US (1) US4568924A (en, 2012)
EP (1) EP0141987B1 (en, 2012)
JP (1) JPS60101696A (en, 2012)
AT (1) ATE30646T1 (en, 2012)
AU (1) AU561595B2 (en, 2012)
CA (1) CA1217541A (en, 2012)
DE (1) DE3467267D1 (en, 2012)
DK (1) DK494284A (en, 2012)
ES (1) ES8602280A1 (en, 2012)
FI (1) FI844052A7 (en, 2012)
NO (1) NO844149L (en, 2012)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115300A (ja) * 1984-06-29 1986-01-23 ホーチキ株式会社 火災警報装置
US4808972A (en) * 1986-05-29 1989-02-28 Cadin Electronics Pty. Ltd. Security system with false alarm inhibiting
US4792797A (en) * 1987-03-05 1988-12-20 Seatt Corporation Smoke detector having variable level sensitivity
USRE33920E (en) * 1987-03-05 1992-05-12 Seatt Corporation Smoke detector having variable level sensitivity
FR2618931B1 (fr) * 1987-07-28 1994-05-27 Morey Gilles Procede de fonctionnement d'une installation de surveillance
CA2113026A1 (en) * 1993-01-28 1994-07-29 Paul Michael Hoseit Methods and apparatus for intrusion detection having improved immunity to false alarms
JP3184429B2 (ja) * 1995-06-30 2001-07-09 ホーチキ株式会社 防災監視システムの端末感知装置
GB2308482B (en) * 1995-12-20 2000-03-29 Pyronix Ltd Event detection device with fault monitoring capability
US5786755A (en) * 1997-02-12 1998-07-28 At&T Corp Alarm escalation method
GB9820644D0 (en) * 1998-09-22 1998-11-18 Vimpex Limited Public address apparatus
GB2347772B (en) * 1999-03-12 2003-05-07 Manhar Amlani Fire alarm system
WO2000068906A1 (en) 1999-05-07 2000-11-16 C & K Systems, Inc. Glass-break detector and method of alarm discrimination
GB2376121B (en) * 2000-03-31 2003-10-08 British Telecomm Alarm monitoring arrangement
US6856242B2 (en) * 2003-02-04 2005-02-15 Spiral Technologies Ltd. Automatic siren silencing device for false alarms
CN104992537B (zh) * 2015-06-26 2018-02-09 北京航天易联科技发展有限公司 一种信号处理方法和装置
CN106971521B (zh) * 2017-05-03 2018-09-21 山东科技大学 一种抖动报警和重复报警的在线消除方法与系统
AU2018278833B2 (en) * 2017-05-31 2023-09-21 Eric V. Gonzales Smoke device and smoke detection circuit
JP7480033B2 (ja) * 2020-12-14 2024-05-09 能美防災株式会社 防災システム
CN113313915B (zh) * 2021-02-19 2023-05-12 精英数智科技股份有限公司 一种基于瓦斯系统分级报警短信的处理方法及系统
KR102810406B1 (ko) * 2022-10-25 2025-05-23 (주)미래브이씨 차량용 공기압 스프링 브레이크 챔버의 이상 진단 시스템

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599195A (en) * 1968-05-31 1971-08-10 Pinkerton S Inc Dual alarm, coaxial line resonator, intrusion detection system
US3934145A (en) * 1973-10-25 1976-01-20 Emhart Corporation Ionization smoke detector and alarm system
JPS52153759A (en) * 1976-06-17 1977-12-21 Hochiki Co Storage type detector
CH623154A5 (en) * 1977-07-01 1981-05-15 Cerberus Ag Fire detection system
DE2732571A1 (de) * 1977-07-19 1979-02-01 Richter Axel Verfahren zum entstoeren von vorrichtungen, insbesondere von ueberwachungsanlagen
DE2816192C2 (de) * 1978-04-14 1986-02-20 Alois Zettler Elektrotechnische Fabrik GmbH, 8000 München Brandmeldezentrale

Also Published As

Publication number Publication date
DK494284A (da) 1985-04-18
JPH0430699B2 (en, 2012) 1992-05-22
US4568924A (en) 1986-02-04
EP0141987B1 (de) 1987-11-04
EP0141987A3 (en) 1985-07-10
ES536989A0 (es) 1985-11-16
EP0141987A2 (de) 1985-05-22
JPS60101696A (ja) 1985-06-05
ES8602280A1 (es) 1985-11-16
ATE30646T1 (de) 1987-11-15
AU561595B2 (en) 1987-05-14
DK494284D0 (da) 1984-10-16
FI844052A0 (fi) 1984-10-15
NO844149L (no) 1985-04-18
FI844052L (fi) 1985-04-18
FI844052A7 (fi) 1985-04-18
DE3467267D1 (en) 1987-12-10
AU3424884A (en) 1985-04-26

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