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IT1245405B - Dispositivo anti-intrusione - Google Patents

Dispositivo anti-intrusione

Info

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
Application number
ITTO910082A
Other languages
English (en)
Inventor
Tommaso Pagoto
Carlo Zelferino
Original Assignee
Bitron Video
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bitron Video filed Critical Bitron Video
Priority to ITTO910082A priority Critical patent/IT1245405B/it
Publication of ITTO910082A0 publication Critical patent/ITTO910082A0/it
Priority to EP92102193A priority patent/EP0499177A1/en
Publication of ITTO910082A1 publication Critical patent/ITTO910082A1/it
Application granted granted Critical
Publication of IT1245405B publication Critical patent/IT1245405B/it

Links

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.
ITTO910082A 1991-02-11 1991-02-11 Dispositivo anti-intrusione IT1245405B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTO910082A IT1245405B (it) 1991-02-11 1991-02-11 Dispositivo anti-intrusione
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 (it) 1991-02-11 1991-02-11 Dispositivo anti-intrusione

Publications (3)

Publication Number Publication Date
ITTO910082A0 ITTO910082A0 (it) 1991-02-11
ITTO910082A1 ITTO910082A1 (it) 1992-08-11
IT1245405B true IT1245405B (it) 1994-09-20

Family

ID=11408887

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910082A IT1245405B (it) 1991-02-11 1991-02-11 Dispositivo anti-intrusione

Country Status (2)

Country Link
EP (1) EP0499177A1 (it)
IT (1) IT1245405B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2983423B2 (ja) * 1993-12-21 1999-11-29 オプテックス株式会社 赤外線式人体検知装置
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 (de) 1995-11-03 2003-01-08 Siemens Building Technologies AG Passiver Infrarot-Einbruchdetektor und dessen Verwendung
IL119372A (en) * 1995-11-03 2000-02-17 Siemens Building Tech Ag Passive infrared intruder detector
DE19605102A1 (de) * 1996-02-12 1997-08-14 Siemens Nixdorf Inf Syst Infrarot-Sicherungssystem
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 (de) 1999-03-08 2003-10-29 Siemens Building Technologies AG Gehäuse für einen Gefahrenmelder
EP1061489B1 (de) * 1999-06-07 2004-08-25 Siemens Building Technologies AG Intrusionsmelder mit einer Einrichtung zur Sabotageüberwachung
DE59909695D1 (de) 1999-10-14 2004-07-15 Siemens Building Tech Ag Passiv-Infrarotmelder
DE50103419D1 (de) 2001-11-05 2004-09-30 Siemens Building Tech Ag Passiv-Infrarotmelder
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 (zh) 2011-11-16 2017-04-12 泰科消防及安全有限公司 运动检测系统和方法
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)

* Cited by examiner, † Cited by third party
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 (fr) * 1984-11-30 1987-01-23 Labo Electronique Physique Dispositif de detection d'intrus muni d'un dispositif d'antimasquage
ATE47238T1 (de) * 1985-01-08 1989-10-15 Cerberus Ag Infrarot-einbruchdetektor.
DE8609515U1 (de) * 1986-04-08 1986-07-10 Fritz Fuss Gmbh & Co, 72458 Albstadt Vorrichtung zur Sabotageüberwachung an einem IR-Bewegungsmelder
EP0289621A4 (en) * 1986-10-31 1990-07-03 Takenaka Eng Co Ltd PASSIVE INFRARED DETECTION DETECTOR PROVIDED WITH A VISUAL FIELD INTERRUPTION MONITORING MECHANISM.

Also Published As

Publication number Publication date
ITTO910082A1 (it) 1992-08-11
EP0499177A1 (en) 1992-08-19
ITTO910082A0 (it) 1991-02-11

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940224