DE2830847C2 - Rauchdetektor - Google Patents
RauchdetektorInfo
- Publication number
- DE2830847C2 DE2830847C2 DE2830847A DE2830847A DE2830847C2 DE 2830847 C2 DE2830847 C2 DE 2830847C2 DE 2830847 A DE2830847 A DE 2830847A DE 2830847 A DE2830847 A DE 2830847A DE 2830847 C2 DE2830847 C2 DE 2830847C2
- Authority
- DE
- Germany
- Prior art keywords
- pulse
- flop
- flip
- signal
- smoke detector
- 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
Links
Classifications
-
- 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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
Die Aufgabe der vorliegenden Erfindung besteht darin, einen Rauchdetektor anzugeben, der eine derart geringe Stromaufnahme besitzt, daß er über eine lange Zeitspanne hinweg aus einer kleinen Batterie speisbar ist, und der in einer ausreichenden Weiüe gegen Falschalarme geschützt ist.
Verknüpfungseinrichtung bzw. eines UND-Gliedes G 1
zugeführt wird. Das Ausgangssignal dieser Verknüpfungseinrichtung wird dem Setz-Anschluß einer Alarmbetätigungseinrichtung in der Form einer bistabilen
Schalteinrichtung, z. B. eines Flipflops FF, zugeführt.
ein Rechlccksignal Pl(O), welches alle acht Sekunden
mit einer Dauer von vier Sekunden auftritt. Im Alarmbctrieb erzeugt der Impulsgenerator ein Rechtecksi-
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/815,103 US4125779A (en) | 1977-07-13 | 1977-07-13 | Smoke detector |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2830847A1 DE2830847A1 (de) | 1979-02-15 |
DE2830847C2 true DE2830847C2 (de) | 1984-07-05 |
Family
ID=25216869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2830847A Expired DE2830847C2 (de) | 1977-07-13 | 1978-07-13 | Rauchdetektor |
Country Status (13)
Country | Link |
---|---|
US (1) | US4125779A (de) |
JP (1) | JPS5436986A (de) |
AU (1) | AU519220B2 (de) |
BR (1) | BR7804507A (de) |
CA (1) | CA1133605A (de) |
CH (1) | CH634942A5 (de) |
DE (1) | DE2830847C2 (de) |
FR (1) | FR2400740A1 (de) |
GB (3) | GB2000868B (de) |
IL (1) | IL55074A (de) |
NZ (1) | NZ187804A (de) |
SE (1) | SE7807768L (de) |
ZA (1) | ZA783910B (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1087274A (en) * | 1976-09-02 | 1980-10-07 | William F. Jacobsen | Pulsed level sensor |
US4198627A (en) * | 1977-07-12 | 1980-04-15 | Cybernet Electronics Corporation | Photoelectric synchronous smoke sensor |
US4260984A (en) * | 1979-03-17 | 1981-04-07 | Hochiki Corporation | Count discriminating fire detector |
DE3016530A1 (de) * | 1980-04-29 | 1981-11-05 | Hekatron GmbH, 7811 Sulzburg | Lichtoptische nachweisvorrichtung fuer eine schwebeteilchenkonzentration |
US4459024A (en) * | 1981-12-09 | 1984-07-10 | Conoco Inc. | Method and apparatus for light detection and ranging for use in visually obstructed areas |
US4539556A (en) * | 1983-04-15 | 1985-09-03 | Pittway Corporation | Combustion products detector with accelerated test |
US4680462A (en) * | 1984-12-11 | 1987-07-14 | Baxter Travenol Laboratories, Inc. | Fluid drop detection system |
US5867099A (en) * | 1997-11-24 | 1999-02-02 | Keeter; Daniel R. | Motion sensing, lighting and alarming system |
US6222456B1 (en) | 1998-10-01 | 2001-04-24 | Pittway Corporation | Detector with variable sample rate |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3553664A (en) * | 1968-07-15 | 1971-01-05 | Monsanto Co | Monitoring apparatus |
GB1419146A (en) * | 1972-06-06 | 1975-12-24 | Commw Scient Ind Res Org | Smoke detector |
US3816745A (en) * | 1972-11-20 | 1974-06-11 | Innovation Ind Inc | Optically-coupled sensing and control system |
JPS5545506Y2 (de) * | 1972-12-14 | 1980-10-24 | ||
IL45331A (en) * | 1973-11-26 | 1977-12-30 | Chloride Batterijen Bv | Photoelectric smoke detector |
US3946241A (en) * | 1973-11-26 | 1976-03-23 | Pyrotector, Incorporated | Light detector with pulsed light source and synchronous data gating |
US3892485A (en) * | 1974-05-06 | 1975-07-01 | Gen Electric | Monitoring apparatus for measuring particles suspended in liquid and for measuring the opacity of the liquid |
US4065759A (en) * | 1976-01-07 | 1977-12-27 | Handing Theodore E | Smoke detector |
-
1977
- 1977-07-13 US US05/815,103 patent/US4125779A/en not_active Expired - Lifetime
-
1978
- 1978-07-04 IL IL55074A patent/IL55074A/xx unknown
- 1978-07-07 NZ NZ187804A patent/NZ187804A/xx unknown
- 1978-07-07 ZA ZA00783910A patent/ZA783910B/xx unknown
- 1978-07-12 GB GB7829685A patent/GB2000868B/en not_active Expired
- 1978-07-12 BR BR7804507A patent/BR7804507A/pt unknown
- 1978-07-12 CH CH755978A patent/CH634942A5/de not_active IP Right Cessation
- 1978-07-12 AU AU37951/78A patent/AU519220B2/en not_active Expired
- 1978-07-12 SE SE7807768A patent/SE7807768L/xx unknown
- 1978-07-12 CA CA307,240A patent/CA1133605A/en not_active Expired
- 1978-07-13 DE DE2830847A patent/DE2830847C2/de not_active Expired
- 1978-07-13 JP JP8566778A patent/JPS5436986A/ja active Pending
- 1978-07-13 FR FR7821013A patent/FR2400740A1/fr active Granted
-
1979
- 1979-07-12 GB GB7926494A patent/GB2024420B/en not_active Expired
- 1979-07-30 GB GB8028154A patent/GB2088044B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2400740A1 (fr) | 1979-03-16 |
SE7807768L (sv) | 1979-01-14 |
DE2830847A1 (de) | 1979-02-15 |
AU3795178A (en) | 1980-01-17 |
AU519220B2 (en) | 1981-11-19 |
CA1133605A (en) | 1982-10-12 |
GB2088044B (en) | 1983-01-19 |
CH634942A5 (de) | 1983-02-28 |
BR7804507A (pt) | 1979-02-28 |
IL55074A (en) | 1982-11-30 |
JPS5436986A (en) | 1979-03-19 |
NZ187804A (en) | 1982-08-17 |
GB2024420B (en) | 1982-10-20 |
GB2000868B (en) | 1982-11-17 |
GB2000868A (en) | 1979-01-17 |
GB2088044A (en) | 1982-06-03 |
GB2024420A (en) | 1980-01-09 |
FR2400740B1 (de) | 1984-02-17 |
ZA783910B (en) | 1979-07-25 |
US4125779A (en) | 1978-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2830847C2 (de) | Rauchdetektor | |
DE2727108A1 (de) | Feuermeldeanlage | |
DE2413162A1 (de) | Rauchmeldesystem | |
DE3009970A1 (de) | Durch zaehlung diskriminierender feuerdetektor | |
DE2328872B2 (de) | Ionisationsfeuermelder | |
DE2633534A1 (de) | Meldeeinrichtung | |
DE2204093C3 (de) | Vorrichtung zur Anwesenheitsermittlung von zumindest eine Lichtschwächung eines von einer Lumineszenzdiode ausgehenden modulierten Lichtbündels hervorrufenden Gegenständen | |
DE2448195C2 (de) | Rauchdetektor | |
DE2449535A1 (de) | Digitale synchronisiereinrichtung | |
DE3131534A1 (de) | Lichtschranke mit einem lichtsender und einem lichtempfaenger | |
DE2754420A1 (de) | Ballistische messanordnung | |
DE2841014A1 (de) | Digitale entfernungsmesseinheit | |
DE2064350C3 (de) | Überwachungseinrichtung für signalgesteuerte Lenkeinrichtungen | |
DE2611692C3 (de) | Glasbruchmelder für Ruhestrom-Alarm-Anlagen | |
DE2424525C2 (de) | Überwachungseinrichtung für eine Brennerflamme | |
DE2621209B1 (de) | Meldeeinrichtung,insbesondere zur Brandmeldung | |
DE2803594C2 (de) | Meldeeinrichtung, insbesondere zur Brandmeldung | |
DE2751073A1 (de) | Detektor | |
DE1516647C3 (de) | Ultraschall-Anwesenheitsdetektor | |
DE2230753C2 (de) | Schaltung zur Zustandskontrolle einer elektrischen Sicherung | |
DE2051649C2 (de) | Schaltungsanordnung zur Fehlalarmvermeidung bei Brandmeldeeinrichtungen | |
DE2230934B1 (de) | Meldeeinrichtung, vorzugsweise zur Brandmeldung | |
DE2361403A1 (de) | Photoelektrischer rauchdetektor bzw. -melder | |
DE1616210C3 (de) | Signalempfänger | |
DE2804523C3 (de) | Brandmeldeeinrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8128 | New person/name/address of the agent |
Representative=s name: BARDEHLE, H., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 2857920 Format of ref document f/p: P |
|
AH | Division in |
Ref country code: DE Ref document number: 2857920 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 2857920 |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 2858156 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 2858156 |
|
8127 | New person/name/address of the applicant |
Owner name: PYROTECTOR INC., HINGHAM, MASS., US |
|
8128 | New person/name/address of the agent |
Representative=s name: BARDEHLE, H., DIPL.-ING., PAT.-ANW. PAGENBERG, J., |
|
AH | Division in |
Ref country code: DE Ref document number: 2857920 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |