GB2254174B - Abnormal condition detecting unit and security alarm system using the same - Google Patents

Abnormal condition detecting unit and security alarm system using the same

Info

Publication number
GB2254174B
GB2254174B GB9204085A GB9204085A GB2254174B GB 2254174 B GB2254174 B GB 2254174B GB 9204085 A GB9204085 A GB 9204085A GB 9204085 A GB9204085 A GB 9204085A GB 2254174 B GB2254174 B GB 2254174B
Authority
GB
United Kingdom
Prior art keywords
same
detecting unit
alarm system
abnormal condition
condition detecting
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 - Lifetime
Application number
GB9204085A
Other versions
GB9204085D0 (en
GB2254174A (en
Inventor
Nobuyuki Akiyama
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.)
Nittan Co Ltd
Original Assignee
Nittan Co Ltd
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 Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of GB9204085D0 publication Critical patent/GB9204085D0/en
Publication of GB2254174A publication Critical patent/GB2254174A/en
Application granted granted Critical
Publication of GB2254174B publication Critical patent/GB2254174B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
GB9204085A 1991-03-25 1992-02-26 Abnormal condition detecting unit and security alarm system using the same Expired - Lifetime GB2254174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3084740A JP2816606B2 (en) 1991-03-25 1991-03-25 Fire detection unit and fire alarm system using the same

Publications (3)

Publication Number Publication Date
GB9204085D0 GB9204085D0 (en) 1992-04-08
GB2254174A GB2254174A (en) 1992-09-30
GB2254174B true GB2254174B (en) 1994-10-12

Family

ID=13839096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9204085A Expired - Lifetime GB2254174B (en) 1991-03-25 1992-02-26 Abnormal condition detecting unit and security alarm system using the same

Country Status (2)

Country Link
JP (1) JP2816606B2 (en)
GB (1) GB2254174B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266421B (en) * 1992-04-21 1996-01-17 Motorola Inc Selective call receiver and method for indicating status of operational parameters with voice messages
GB2276264B (en) * 1993-03-16 1997-01-22 Jsb Electrical Plc Method and apparatus for control of fire alarm device
WO1994023402A1 (en) * 1993-03-29 1994-10-13 Gilbert Alain Lindsay Garrick Versatile fire alarm, evacuation and emergency lighting system
GB9418719D0 (en) * 1994-09-16 1994-11-02 Jsb Electrical Plc Fire alarms
GB9609868D0 (en) * 1996-05-11 1996-07-17 Menvier Electronic Eng Ltd Alarm systems
GB2348031B (en) * 1996-05-11 2000-11-15 Menvier Alarm systems
GB2336455B (en) * 1998-04-16 2001-08-15 Apollo Fire Detectors Ltd Detecting device and an alarm system
FR2784214B1 (en) * 1998-10-01 2000-12-15 Legrand Sa CONTROLLED MULTIPURPOSE SIREN ALARM DEVICE
JP4318732B2 (en) * 2005-05-10 2009-08-26 ホーチキ株式会社 Alarm output device
CN102855727B (en) * 2012-09-11 2016-03-30 宁波德沃电气有限公司 Low-voltage distribution cabinet pre-alarming device
JP7544468B2 (en) * 2019-02-25 2024-09-03 ホーチキ株式会社 Disaster prevention equipment
KR102666090B1 (en) * 2022-09-07 2024-05-14 열두방재(주) Fire detector having fire alarm function and fire alarm apparatus
KR102666092B1 (en) * 2023-03-27 2024-05-14 열두방재(주) Analogue type fire detector and add-on apparatus having fire alarm function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005886A (en) * 1977-10-06 1979-04-25 Honeywell Inc Alarm system
US4198625A (en) * 1978-05-02 1980-04-15 General Signal Corporation Dual alarm detection on single loop
GB2177833A (en) * 1985-07-12 1987-01-28 Gerald Charles Dudley Window detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852742Y2 (en) * 1979-03-23 1983-12-01 ホーチキ株式会社 Broadcasting equipment
JPS5852743Y2 (en) * 1979-04-23 1983-12-01 ホーチキ株式会社 Broadcasting equipment
JPS5844469Y2 (en) * 1979-06-27 1983-10-07 ホーチキ株式会社 fire alarm device
JPS58159094U (en) * 1982-04-19 1983-10-24 ホーチキ株式会社 detector acoustic alarm device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005886A (en) * 1977-10-06 1979-04-25 Honeywell Inc Alarm system
US4198625A (en) * 1978-05-02 1980-04-15 General Signal Corporation Dual alarm detection on single loop
GB2177833A (en) * 1985-07-12 1987-01-28 Gerald Charles Dudley Window detector

Also Published As

Publication number Publication date
GB9204085D0 (en) 1992-04-08
JP2816606B2 (en) 1998-10-27
GB2254174A (en) 1992-09-30
JPH04295991A (en) 1992-10-20

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20120225