IT1245405B - ANTI-INTRUSION DEVICE - Google Patents
ANTI-INTRUSION DEVICEInfo
- Publication number
- IT1245405B IT1245405B ITTO910082A ITTO910082A IT1245405B IT 1245405 B IT1245405 B IT 1245405B IT TO910082 A ITTO910082 A IT TO910082A IT TO910082 A ITTO910082 A IT TO910082A IT 1245405 B IT1245405 B IT 1245405B
- Authority
- IT
- Italy
- Prior art keywords
- window
- detector element
- sample signals
- container
- sample
- Prior art date
Links
- 230000005855 radiation Effects 0.000 abstract 2
- 230000000873 masking effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Burglar Alarm Systems (AREA)
Abstract
L'invenzione concerne un sistema anti-intrusione comprendente un contenitore che presenta una finestra per permettere l'ingresso della radiazione infrarossa proveniente dell'ambiente e/o da un eventuale intruso, un circuito elettronico che riceve il segnale di un elemento rivelatore di infrarosso e ne processa il valore allo scopo di stabilire se la radiazione infrarossa ricevuta è quella naturale prodotta dall'ambiente sottoposto a sorveglianza o se è dovuta alla presenza di un intruso ed in quest'ultimo caso provvede a generare un segnale di allarme di intrusione e dei mezzi per impedire che il dispositivo venga messo fuori uso, comprendenti una sorgente di segnali campione. La principale caratteristica consiste nel fatto che detti mezzi di analisi dei segnali campione comprendono un secondo elemento rilevatore di infrarosso, adatto a rivelare variazioni di detti segnali campione, derivate da tentativi di manomissione del dispositivo a seguito di mascheratura di detta finestra e che la sorgente di segnali campione e il secondo elemento rilevatore sono posizionati uno dentro e l'altro fuori del detto contenitore ed interagiscono attraverso la finestra.The invention relates to an anti-intrusion system comprising a container which has a window to allow the entry of infrared radiation from the environment and / or a possible intruder, an electronic circuit that receives the signal of an infrared detector element and processes its value in order to establish whether the received infrared radiation is the natural one produced by the environment under surveillance or if it is due to the presence of an intruder and in the latter case it generates an intrusion alarm signal and the means to prevent the device from being taken out of service, including a sample signal source. The main feature consists in the fact that said means of analysis of the sample signals comprise a second infrared detector element, suitable for detecting variations of said sample signals, deriving from attempts to tamper with the device following masking of said window and that the source of sample signals and the second detector element are positioned one inside and the other outside the said container and interact through the window.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO910082A IT1245405B (en) | 1991-02-11 | 1991-02-11 | ANTI-INTRUSION DEVICE |
| EP92102193A EP0499177A1 (en) | 1991-02-11 | 1992-02-10 | Anti-intrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO910082A IT1245405B (en) | 1991-02-11 | 1991-02-11 | ANTI-INTRUSION DEVICE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITTO910082A0 ITTO910082A0 (en) | 1991-02-11 |
| ITTO910082A1 ITTO910082A1 (en) | 1992-08-11 |
| IT1245405B true IT1245405B (en) | 1994-09-20 |
Family
ID=11408887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITTO910082A IT1245405B (en) | 1991-02-11 | 1991-02-11 | ANTI-INTRUSION DEVICE |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0499177A1 (en) |
| IT (1) | IT1245405B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2983423B2 (en) * | 1993-12-21 | 1999-11-29 | オプテックス株式会社 | Infrared human body detector |
| IL110800A0 (en) * | 1994-08-28 | 1995-07-31 | Visonic Ltd | Improved intrusion detector with obscuring detection apparatus |
| SG38904A1 (en) * | 1995-03-10 | 1997-04-17 | Gen Electric | High performance polymer compositions |
| GB2317486B (en) * | 1995-06-22 | 2000-01-12 | David John Dando | Intrusion sensing systems |
| GB9512753D0 (en) * | 1995-06-22 | 1995-08-30 | Dando David J | Intrusion sensing system |
| EP0772171B1 (en) | 1995-11-03 | 2003-01-08 | Siemens Building Technologies AG | Passive intrusion detector and its use |
| IL119372A (en) * | 1995-11-03 | 2000-02-17 | Siemens Building Tech Ag | Passive infrared intruder detector |
| DE19605102A1 (en) * | 1996-02-12 | 1997-08-14 | Siemens Nixdorf Inf Syst | Infrared security system |
| GB2339614B (en) * | 1998-07-14 | 2000-06-21 | Infrared Integrated Syst Ltd | Detector-array sensor with mask warning |
| GB2344167B (en) * | 1998-11-26 | 2000-09-06 | Infrared Integrated Syst Ltd | Use of detector arrays to detect cessation of motion |
| EP1037184B1 (en) | 1999-03-08 | 2003-10-29 | Siemens Building Technologies AG | Casing for hazard warning device |
| EP1061489B1 (en) * | 1999-06-07 | 2004-08-25 | Siemens Building Technologies AG | Intrusion detector with a device for monitoring against tampering |
| DE59909695D1 (en) | 1999-10-14 | 2004-07-15 | Siemens Building Tech Ag | Passive infrared detector |
| DE50103419D1 (en) | 2001-11-05 | 2004-09-30 | Siemens Building Tech Ag | Passive infrared detector |
| US7414236B2 (en) * | 2006-06-16 | 2008-08-19 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Monitoring devices and intrusion surveillance devices |
| US8017913B2 (en) | 2006-07-27 | 2011-09-13 | Visonic Ltd. | Passive infrared detectors |
| CN104204743B (en) | 2011-11-16 | 2017-04-12 | 泰科消防及安全有限公司 | Motion detection system and method |
| US9123222B2 (en) | 2012-03-15 | 2015-09-01 | Ninve Jr. Inc. | Apparatus and method for detecting tampering with an infra-red motion sensor |
| EP4174814A1 (en) * | 2021-10-26 | 2023-05-03 | Carrier Fire & Security EMEA BV | Motion detector with masking detection |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1439325A (en) * | 1972-05-06 | 1976-06-16 | Kgm Electronics Ltd | Alarm detectors |
| GB1603306A (en) * | 1978-04-27 | 1981-11-25 | First Ba Security Ltd | Intruder alarms |
| GB2141228B (en) * | 1983-06-09 | 1987-01-07 | Shorrock Security Systems Ltd | Infra-red intrusion detector |
| FR2574200B1 (en) * | 1984-11-30 | 1987-01-23 | Labo Electronique Physique | DEVICE FOR DETECTING AN INTRUDER PROVIDED WITH AN ANTI-MASKING DEVICE |
| ATE47238T1 (en) * | 1985-01-08 | 1989-10-15 | Cerberus Ag | INFRARED INTRUSION DETECTOR. |
| DE8609515U1 (en) * | 1986-04-08 | 1986-07-10 | Fritz Fuss Gmbh & Co, 72458 Albstadt | Device for sabotage monitoring on an IR motion detector |
| EP0289621A4 (en) * | 1986-10-31 | 1990-07-03 | Takenaka Eng Co Ltd | Passive infrared burglar sensor equipped with visual field interruption monitor mechanism. |
-
1991
- 1991-02-11 IT ITTO910082A patent/IT1245405B/en active IP Right Grant
-
1992
- 1992-02-10 EP EP92102193A patent/EP0499177A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO910082A1 (en) | 1992-08-11 |
| EP0499177A1 (en) | 1992-08-19 |
| ITTO910082A0 (en) | 1991-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IT1245405B (en) | ANTI-INTRUSION DEVICE | |
| US3634846A (en) | Intrusion and fire detection system | |
| ES8406766A1 (en) | Infrared detector for spotting an intruder in an area. | |
| NO810607L (en) | Burglary alarm and surveillance device. | |
| DE68917419D1 (en) | Intrusion alarm procedure and system therefor. | |
| WO2006071578A3 (en) | Method and apparatus for detecting individuals using electrical field sensors | |
| ES472658A1 (en) | Alarm system | |
| ES8706274A1 (en) | Infrared intrusion detector. | |
| AU561595B2 (en) | Triple interrogation of sensor alarm system | |
| FR2763156B1 (en) | DEVICE FOR MONITORING THE ACTIVITY OF A PERSON AND / OR FOR DETECTING A FALL, IN PARTICULAR WITH A VIEW TO PROVIDING HIM / HER WITH RESCUE IN THE EVENT OF AN INCIDENT ENDANGING HIS SURVIVAL OR ITS GENERAL CONDITION | |
| US4963749A (en) | Quad element intrusion detection | |
| ATE261164T1 (en) | METHOD AND DEVICE FOR DETECTING DRIFTS, JUMPS AND/OR OUTREAVIES OF MEASUREMENT VALUES | |
| US4183019A (en) | Money clip with light sensitive detector | |
| US4199755A (en) | Optical smoke detector | |
| ATE16861T1 (en) | MONITORING AND ALARM PROCEDURES AND RELEVANT DEVICE. | |
| HK1009066A1 (en) | Fire detector | |
| US4577183A (en) | Apparatus for the protection of places such as residences | |
| GB2184277A (en) | Intruder alarm system | |
| DE59004935D1 (en) | Video control facility. | |
| ATE211845T1 (en) | METHOD FOR AVOIDING FALSE ALARMS IN A FIRE ALARM SYSTEM, AND FIRE ALARM SYSTEM FOR IMPLEMENTING THE METHOD | |
| ATE286287T1 (en) | BURGLAR DETECTION SYSTEM WITH A MICROWAVE BARRIER | |
| CA2300463A1 (en) | Combination microwave passive infrared motion detector with anti-masking evaluation | |
| GB1279451A (en) | Device for detecting change and motion in a given scene | |
| GB2126390A (en) | Alarm | |
| RU2099691C1 (en) | Process indicating destruction of plates and shells from dielectric materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940224 |