GB2321747B - Alarm system - Google Patents
Alarm systemInfo
- Publication number
- GB2321747B GB2321747B GB9701941A GB9701941A GB2321747B GB 2321747 B GB2321747 B GB 2321747B GB 9701941 A GB9701941 A GB 9701941A GB 9701941 A GB9701941 A GB 9701941A GB 2321747 B GB2321747 B GB 2321747B
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm system
- 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.)
- Expired - Fee Related
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
- G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9701941A GB2321747B (en) | 1997-01-30 | 1997-01-30 | Alarm system |
DE69822010T DE69822010D1 (en) | 1997-01-30 | 1998-01-20 | alarm system |
EP19980300392 EP0856828B1 (en) | 1997-01-30 | 1998-01-20 | Alarm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9701941A GB2321747B (en) | 1997-01-30 | 1997-01-30 | Alarm system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9701941D0 GB9701941D0 (en) | 1997-03-19 |
GB2321747A GB2321747A (en) | 1998-08-05 |
GB2321747B true GB2321747B (en) | 2000-10-18 |
Family
ID=10806843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9701941A Expired - Fee Related GB2321747B (en) | 1997-01-30 | 1997-01-30 | Alarm system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0856828B1 (en) |
DE (1) | DE69822010D1 (en) |
GB (1) | GB2321747B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2170504T3 (en) * | 1997-06-07 | 2002-08-01 | Fulleon Ltd | ALARM SYSTEM. |
GB2370670B (en) * | 2000-09-22 | 2005-03-02 | Manhar Amlani | Emergency signalling device |
GB2423618B (en) * | 2004-03-15 | 2008-08-13 | Novar Systems Ltd | Improvements in and relating to addressable devices |
FR2897968B1 (en) | 2006-02-24 | 2008-11-21 | Airbus France Sas | FIRE DETECTION SYSTEM AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1310169A (en) * | 1969-03-25 | 1973-03-14 | Siemens Ag | Alarm systems |
GB1320651A (en) * | 1970-03-31 | 1973-06-20 | Nittan Co Ltd | Fire alarm systems |
US4163226A (en) * | 1977-09-02 | 1979-07-31 | Statitrol Division Emerson Electric Co. | Alarm condition detecting apparatus and method |
EP0071752A1 (en) * | 1981-07-02 | 1983-02-16 | Nohmi Bosai Kogyo Co., Ltd. | Fire alarm system |
EP0093095A2 (en) * | 1982-04-23 | 1983-11-02 | Cerberus Ag | A method and an apparatus for identifying a detector giving an alarm in a loop circuit having a predetermined number of detectors connected in parallel |
US4435698A (en) * | 1980-06-11 | 1984-03-06 | Hekatron Gmbh | Circuit arrangement for the transmission of measurements to a central, especially in a fire alarm system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2215105A (en) * | 1988-02-16 | 1989-09-13 | Richard William Henry Ford | Personnel evacuation system |
US5539389A (en) * | 1991-11-15 | 1996-07-23 | Pittway Corporation | Enhanced group addressing system |
FR2723234B1 (en) * | 1994-07-29 | 1996-10-18 | Lewiner Jacques | ALARM DETECTION DEVICE WITH CURRENT LOOPS, AND SUBZONE TRACKING BEACON FOR SUCH A DEVICE |
-
1997
- 1997-01-30 GB GB9701941A patent/GB2321747B/en not_active Expired - Fee Related
-
1998
- 1998-01-20 DE DE69822010T patent/DE69822010D1/en not_active Expired - Lifetime
- 1998-01-20 EP EP19980300392 patent/EP0856828B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1310169A (en) * | 1969-03-25 | 1973-03-14 | Siemens Ag | Alarm systems |
GB1320651A (en) * | 1970-03-31 | 1973-06-20 | Nittan Co Ltd | Fire alarm systems |
US4163226A (en) * | 1977-09-02 | 1979-07-31 | Statitrol Division Emerson Electric Co. | Alarm condition detecting apparatus and method |
US4435698A (en) * | 1980-06-11 | 1984-03-06 | Hekatron Gmbh | Circuit arrangement for the transmission of measurements to a central, especially in a fire alarm system |
EP0071752A1 (en) * | 1981-07-02 | 1983-02-16 | Nohmi Bosai Kogyo Co., Ltd. | Fire alarm system |
EP0093095A2 (en) * | 1982-04-23 | 1983-11-02 | Cerberus Ag | A method and an apparatus for identifying a detector giving an alarm in a loop circuit having a predetermined number of detectors connected in parallel |
Also Published As
Publication number | Publication date |
---|---|
EP0856828A3 (en) | 2000-01-05 |
GB9701941D0 (en) | 1997-03-19 |
GB2321747A (en) | 1998-08-05 |
EP0856828A2 (en) | 1998-08-05 |
DE69822010D1 (en) | 2004-04-08 |
EP0856828B1 (en) | 2004-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20140130 |