GB2283847A - Fire detection system - Google Patents

Fire detection system

Info

Publication number
GB2283847A
GB2283847A GB9501988A GB9501988A GB2283847A GB 2283847 A GB2283847 A GB 2283847A GB 9501988 A GB9501988 A GB 9501988A GB 9501988 A GB9501988 A GB 9501988A GB 2283847 A GB2283847 A GB 2283847A
Authority
GB
United Kingdom
Prior art keywords
alarm
detection
detection system
unit
control processor
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.)
Granted
Application number
GB9501988A
Other versions
GB2283847B (en
GB9501988D0 (en
Inventor
Ronald James Rust
Graham Arnold
Colin Mullins
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.)
Menvier Ltd
Original Assignee
Menvier 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 Menvier Ltd filed Critical Menvier Ltd
Publication of GB9501988D0 publication Critical patent/GB9501988D0/en
Publication of GB2283847A publication Critical patent/GB2283847A/en
Application granted granted Critical
Publication of GB2283847B publication Critical patent/GB2283847B/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
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/002—Generating a prealarm to the central station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/007—Details of data content structure of message packets; data protocols

Abstract

A fire detection system includes a number of integrated alarm/detection units (2) mounted in different locations. A control unit (1) transmits and receives radio signals to and from the alarm/detection units (2). Each alarm/detection unit (2) has a fire detector and an alarm for generating an audible or visible alarm signal. The unit includes a local control processor (5) connected in common to the detector and to the alarm. A radio transceiver is connected to the local control processor. The alarm/detection unit has a battery power supply. The control processor (5) is arranged to switch ON in a predetermined time slot, and when ON to switch between an idle mode and an active mode. The processor when in the active mode transmits to the control unit data indicative of the operational status of the alarm/detection system. <IMAGE>
GB9501988A 1992-08-06 1993-08-05 Fire detection system Expired - Lifetime GB2283847B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929216701A GB9216701D0 (en) 1992-08-06 1992-08-06 Fire detection system
PCT/GB1993/001653 WO1994003881A1 (en) 1992-08-06 1993-08-05 Fire detection system

Publications (3)

Publication Number Publication Date
GB9501988D0 GB9501988D0 (en) 1995-03-22
GB2283847A true GB2283847A (en) 1995-05-17
GB2283847B GB2283847B (en) 1996-02-07

Family

ID=10719920

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929216701A Pending GB9216701D0 (en) 1992-08-06 1992-08-06 Fire detection system
GB9501988A Expired - Lifetime GB2283847B (en) 1992-08-06 1993-08-05 Fire detection system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929216701A Pending GB9216701D0 (en) 1992-08-06 1992-08-06 Fire detection system

Country Status (3)

Country Link
AU (1) AU4721393A (en)
GB (2) GB9216701D0 (en)
WO (1) WO1994003881A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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GB2303023A (en) * 1995-06-30 1997-02-05 Knightsbury Holdings Limited Communications with remote sites
GB2393827A (en) * 2002-10-04 2004-04-07 Michael John Leck Remotely monitoring variables

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FR2108997A1 (en) * 1970-10-20 1972-05-26 Souchere Claude
US4191948A (en) * 1978-10-23 1980-03-04 Napco Security System Inc. Digital transmission apparatus particularly adapted for security systems
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303023A (en) * 1995-06-30 1997-02-05 Knightsbury Holdings Limited Communications with remote sites
GB2393827A (en) * 2002-10-04 2004-04-07 Michael John Leck Remotely monitoring variables
GB2393827B (en) * 2002-10-04 2005-11-16 Michael John Leck Monitor system
US7061399B2 (en) 2002-10-04 2006-06-13 Michael John Leck Monitor system

Also Published As

Publication number Publication date
GB2283847B (en) 1996-02-07
AU4721393A (en) 1994-03-03
GB9216701D0 (en) 1992-09-23
GB9501988D0 (en) 1995-03-22
WO1994003881A1 (en) 1994-02-17

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Legal Events

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

Expiry date: 20130804