CH680881A5 - - Google Patents
Download PDFInfo
- Publication number
- CH680881A5 CH680881A5 CH2862/90A CH286290A CH680881A5 CH 680881 A5 CH680881 A5 CH 680881A5 CH 2862/90 A CH2862/90 A CH 2862/90A CH 286290 A CH286290 A CH 286290A CH 680881 A5 CH680881 A5 CH 680881A5
- Authority
- CH
- Switzerland
- Prior art keywords
- ultrasound
- window
- receiver
- emitter
- infrared
- Prior art date
Links
Classifications
-
- 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
- G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2862/90A CH680881A5 (it) | 1990-09-05 | 1990-09-05 | |
DE91114646T DE59100692D1 (de) | 1990-09-05 | 1991-08-30 | Intrusionsdetektor. |
AT91114646T ATE98390T1 (de) | 1990-09-05 | 1991-08-30 | Intrusionsdetektor. |
EP91114646A EP0476397B2 (de) | 1990-09-05 | 1991-08-30 | Intrusionsdetektor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2862/90A CH680881A5 (it) | 1990-09-05 | 1990-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH680881A5 true CH680881A5 (it) | 1992-11-30 |
Family
ID=4243258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH2862/90A CH680881A5 (it) | 1990-09-05 | 1990-09-05 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0476397B2 (it) |
AT (1) | ATE98390T1 (it) |
CH (1) | CH680881A5 (it) |
DE (1) | DE59100692D1 (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2257822A (en) * | 1991-06-27 | 1993-01-20 | Prestige Aire 2000 | Security system for test or monitoring equipment |
DE59907541D1 (de) | 1999-03-08 | 2003-12-04 | Siemens Building Tech Ag | Gehäuse für einen Gefahrenmelder |
EP1061489B1 (de) * | 1999-06-07 | 2004-08-25 | Siemens Building Technologies AG | Intrusionsmelder mit einer Einrichtung zur Sabotageüberwachung |
US7852210B2 (en) * | 2007-12-31 | 2010-12-14 | Honeywell International Inc. | Motion detector for detecting tampering and method for detecting tampering |
US8150202B2 (en) | 2008-06-30 | 2012-04-03 | Honeywell International Inc. | Gaussian mixture model based illumination normalization for global enhancement |
DE102009047531A1 (de) * | 2009-12-04 | 2011-06-09 | Atral- Secal Gmbh | Rauchmelder mit Ultraschall-Abdecküberwachung |
EP4174814A1 (en) * | 2021-10-26 | 2023-05-03 | Carrier Fire & Security EMEA BV | Motion detector with masking detection |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725888A (en) * | 1971-04-05 | 1973-04-03 | Pyrotector Inc | Detector system |
US4982094A (en) * | 1986-10-31 | 1991-01-01 | Takenaka Engineering Co., Ltd. | Passive type crime-preventing infrared sensor provided with a mechanism of monitoring an obstruction for the visual field |
IT1219751B (it) * | 1988-04-13 | 1990-05-24 | Elkron Spa | Dispositivo rivelatore combinato a microonde e raggi infrarossi particolarmente per sistemi anti intrusione |
-
1990
- 1990-09-05 CH CH2862/90A patent/CH680881A5/de not_active IP Right Cessation
-
1991
- 1991-08-30 DE DE91114646T patent/DE59100692D1/de not_active Expired - Fee Related
- 1991-08-30 EP EP91114646A patent/EP0476397B2/de not_active Expired - Lifetime
- 1991-08-30 AT AT91114646T patent/ATE98390T1/de active
Also Published As
Publication number | Publication date |
---|---|
EP0476397B1 (de) | 1993-12-08 |
DE59100692D1 (de) | 1994-01-20 |
EP0476397A1 (de) | 1992-03-25 |
ATE98390T1 (de) | 1993-12-15 |
EP0476397B2 (de) | 2001-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69300368T3 (de) | Eindringalarmsystem. | |
DE60113316T3 (de) | Sicherheitssensor mit Sabotage-Feststellungsfähigkeit | |
EP1061489B1 (de) | Intrusionsmelder mit einer Einrichtung zur Sabotageüberwachung | |
DE3129753C2 (it) | ||
EP0107042B1 (de) | Infrarot-Detektor zur Feststellung eines Eindringlings in einen Raum | |
US3524180A (en) | Passive intrusion detecting system | |
EP0360126B2 (de) | Verfahren zum Betrieb eines optischen Rauchmelders sowie Rauchmelder zur Durchführung des Verfahrens | |
EP0188748B1 (de) | Raumschutzanlage | |
DE2103909C3 (de) | Überwachungseinrichtung zur Feststellung eines Eindringlings, | |
DE69430113T2 (de) | Infrarotes Eindringlings-Detektierungssystem | |
EP2348495B1 (de) | Rauchmelder mit Ultraschall-Abdecküberwachung | |
DE2653111B2 (de) | Infrarots trahlungs-Einbruchdetektor | |
DE60207883T2 (de) | Sicherheitsdetektor | |
DE69712268T2 (de) | Sicherheitssystem mit Lichtleitmedien | |
EP2082260B1 (de) | Verfahren und radaranordnung zur überwachung eines überwachungsbereichs | |
EP3513395B1 (de) | Rauchmelder, rauchmeldersystem und verfahren zur überwachung eines rauchmelders | |
EP1093100B1 (de) | Passiv-Infrarotmelder | |
CH676642A5 (it) | ||
EP0821330B1 (de) | Rauchmelder | |
DE69806404T2 (de) | Partikeldetektion mit hoher empfindlichkeit | |
DE2911429C2 (de) | Rauchdetektor | |
EP0476397B1 (de) | Intrusionsdetektor | |
CH667744A5 (de) | Infrarot-eindringdetektor. | |
DE3612653C2 (it) | ||
EP0421119A1 (de) | Passiv-Infrarot-Bewegungsmelder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |