CA2010105C - Method of operating an ionization smoke alarm and ionization smoke alarm - Google Patents
Method of operating an ionization smoke alarm and ionization smoke alarmInfo
- Publication number
- CA2010105C CA2010105C CA002010105A CA2010105A CA2010105C CA 2010105 C CA2010105 C CA 2010105C CA 002010105 A CA002010105 A CA 002010105A CA 2010105 A CA2010105 A CA 2010105A CA 2010105 C CA2010105 C CA 2010105C
- Authority
- CA
- Canada
- Prior art keywords
- chamber
- determination circuit
- circuit parameter
- field strength
- reference value
- 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
- G08B25/002—Generating a prealarm to the central station
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
-
- 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
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3904979.5 | 1989-02-18 | ||
DE3904979A DE3904979A1 (de) | 1989-02-18 | 1989-02-18 | Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2010105A1 CA2010105A1 (en) | 1990-08-18 |
CA2010105C true CA2010105C (en) | 1996-11-12 |
Family
ID=6374392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002010105A Expired - Fee Related CA2010105C (en) | 1989-02-18 | 1990-02-15 | Method of operating an ionization smoke alarm and ionization smoke alarm |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0384209B1 (de) |
JP (1) | JPH02251748A (de) |
AT (1) | ATE98798T1 (de) |
CA (1) | CA2010105C (de) |
DE (2) | DE3904979A1 (de) |
DK (1) | DK0384209T3 (de) |
ES (1) | ES2048332T3 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0423489A1 (de) * | 1989-09-15 | 1991-04-24 | Cerberus Ag | Brandmeldeanlage mit Ueberwachung |
CH681932A5 (de) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
ATE186417T1 (de) * | 1992-11-26 | 1999-11-15 | Secom Co Ltd | Anti-einbruchssystem und anti- diebstahlsvorrichtung |
EP0911774B1 (de) * | 1997-10-21 | 2003-07-09 | Siemens Aktiengesellschaft | Raumüberwachungssensor |
JP4550320B2 (ja) * | 2001-06-11 | 2010-09-22 | 理研計器株式会社 | イオン化式ガス感知器 |
FR3017232B1 (fr) * | 2014-02-03 | 2017-09-01 | Finsecur | Boitier de securisation d'un local, systemes de securisation et de commande d'un local et procede de construction d'un mur |
DE102015004458B4 (de) | 2014-06-26 | 2016-05-12 | Elmos Semiconductor Aktiengesellschaft | Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor zur Prognostizierung eines folgenden Betriebszustands |
DE102014019773B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons |
DE102014019172B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5147039B1 (de) * | 1969-04-04 | 1976-12-13 | ||
JPS529998B1 (de) * | 1969-04-25 | 1977-03-19 | ||
CH497755A (de) * | 1969-06-24 | 1970-10-15 | Cerberus Ag | Ionisationsfeuermelder |
DE2121382A1 (de) * | 1971-04-30 | 1972-12-21 | Preussag Ag Feuerschutz | Iomsations Feuermelder |
DE2257931B2 (de) * | 1972-11-25 | 1978-03-30 | Hochiki Corp., Tokio | Vorrichtung zur ständigen Funktionsüberwachung eines Feueralarmsystems o.dgl |
CH574532B5 (de) * | 1972-12-21 | 1976-04-15 | Ciba Geigy Ag | |
CH583445A5 (de) * | 1974-06-14 | 1976-12-31 | Cerberus Ag | |
CH572644A5 (en) * | 1974-06-24 | 1976-02-13 | Cerberus Ag | Ionisation chamber fire detector - with threshold cct. monitoring ionisation current connected to switch cct. for further chamber |
CH617280A5 (en) * | 1976-08-16 | 1980-05-14 | Hartwig Beyersdorf | Ionisation fire detector |
CH629905A5 (de) * | 1978-07-17 | 1982-05-14 | Cerberus Ag | Gas- und/oder brandmeldeanlage. |
ZA786519B (en) * | 1978-11-20 | 1980-02-27 | Anglo Amer Corp South Africa | Detector |
DE3004753C2 (de) * | 1980-02-08 | 1983-12-22 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
DE3050185A1 (de) * | 1980-02-08 | 1982-12-02 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
CH657222A5 (de) * | 1981-01-12 | 1986-08-15 | Pyrotector Inc | Ionisations-detektor sowie verwendung desselben. |
DE3123451A1 (de) * | 1981-06-12 | 1982-12-30 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur stoerungserkennung in gefahren-, insbesondere brandmeldeanlagen |
DE3127324A1 (de) * | 1981-07-10 | 1983-01-27 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur erhoehung der ansprechempfindlichkeit und der stoersicherheit in einer gefahren-, insbesondere brandmeldeanlage |
DE3463582D1 (en) * | 1983-03-04 | 1987-06-11 | Cerberus Ag | Circuit arrangement for the interference level control of detectors, arranged in a danger detection device |
-
1989
- 1989-02-18 DE DE3904979A patent/DE3904979A1/de active Granted
-
1990
- 1990-02-06 ES ES90102292T patent/ES2048332T3/es not_active Expired - Lifetime
- 1990-02-06 DE DE90102292T patent/DE59003821D1/de not_active Expired - Lifetime
- 1990-02-06 DK DK90102292.1T patent/DK0384209T3/da active
- 1990-02-06 AT AT90102292T patent/ATE98798T1/de not_active IP Right Cessation
- 1990-02-06 EP EP90102292A patent/EP0384209B1/de not_active Expired - Lifetime
- 1990-02-15 CA CA002010105A patent/CA2010105C/en not_active Expired - Fee Related
- 1990-02-19 JP JP2039561A patent/JPH02251748A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ES2048332T3 (es) | 1994-03-16 |
EP0384209A2 (de) | 1990-08-29 |
EP0384209A3 (de) | 1991-05-08 |
JPH02251748A (ja) | 1990-10-09 |
DE59003821D1 (de) | 1994-01-27 |
ATE98798T1 (de) | 1994-01-15 |
DK0384209T3 (da) | 1994-02-14 |
DE3904979C2 (de) | 1992-01-09 |
CA2010105A1 (en) | 1990-08-18 |
EP0384209B1 (de) | 1993-12-15 |
DE3904979A1 (de) | 1990-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |