EP0025983A3 - Arrangement to prevent false alarms by passive infrared-movement signallers - Google Patents

Arrangement to prevent false alarms by passive infrared-movement signallers Download PDF

Info

Publication number
EP0025983A3
EP0025983A3 EP80105602A EP80105602A EP0025983A3 EP 0025983 A3 EP0025983 A3 EP 0025983A3 EP 80105602 A EP80105602 A EP 80105602A EP 80105602 A EP80105602 A EP 80105602A EP 0025983 A3 EP0025983 A3 EP 0025983A3
Authority
EP
European Patent Office
Prior art keywords
movement
signallers
arrangement
false alarms
passive infrared
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.)
Withdrawn
Application number
EP80105602A
Other languages
German (de)
French (fr)
Other versions
EP0025983A2 (en
Inventor
Gerhard Dipl.-Ing. Dönges
Thomas Dipl.-Phys. Herwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heimann GmbH
Original Assignee
Heimann GmbH
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 Heimann GmbH filed Critical Heimann GmbH
Publication of EP0025983A2 publication Critical patent/EP0025983A2/en
Publication of EP0025983A3 publication Critical patent/EP0025983A3/en
Withdrawn legal-status Critical Current

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
    • G08B29/18—Prevention or correction of operating errors
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/01—Passive intrusion detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Bei einem Infrarot-Bewegungsmelder wird zur Reduzie­ rung der Empfindlichkeit gegenüber glasdurchdringender elektromagnetischer Strahlung vorgeschlagen, das vor dem Eingang des lnfrarot-Detektors (2) liegende optische Filter (9) mit einer Wärmesenke in Gestalt eines massiven Metalltopfes (6) zu verbinder. Änderungen von im optischen Filter (9) absorbierter Strahlung werden entweder in der Wärmesenke aufgefangen oder zumindest in der Eigenwärmestrahlung des optischen Filters (9) verlangsamt und fallen nicht mehr in den charakteristischen Änderungsbereich des Bewegungs­ melders. With an infrared motion detector, the sensitivity to glass penetration electromagnetic radiation proposed before the Input of the infrared detector (2) optical filters (9) with a heat sink in the form of a solid metal pot (6) to connect. Changes in the optical filter (9) absorbed radiation are either in the heat sink caught or at least in the own heat radiation of the optical filter (9) slows down and no longer fall in the characteristic range of change of movement notifier.

EP80105602A 1979-09-19 1980-09-18 Arrangement to prevent false alarms by passive infrared-movement signallers Withdrawn EP0025983A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2937923A DE2937923C2 (en) 1979-09-19 1979-09-19 Arrangement for preventing false alarms from a passive infrared motion detector
DE2937923 1979-09-19

Publications (2)

Publication Number Publication Date
EP0025983A2 EP0025983A2 (en) 1981-04-01
EP0025983A3 true EP0025983A3 (en) 1981-04-22

Family

ID=6081297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105602A Withdrawn EP0025983A3 (en) 1979-09-19 1980-09-18 Arrangement to prevent false alarms by passive infrared-movement signallers

Country Status (6)

Country Link
US (1) US4307388A (en)
EP (1) EP0025983A3 (en)
JP (1) JPS5652791A (en)
BR (1) BR8005968A (en)
DE (1) DE2937923C2 (en)
GB (1) GB2059056B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6594080A (en) * 1980-01-19 1981-07-30 W. Vinten Ltd. Intruder alarm systems
SE432492B (en) * 1983-02-18 1984-04-02 Lars Stenmark INFRARED SENSOR DETECTOR CONSISTING OF A PELTIER ELEMENT
US4620800A (en) * 1984-03-08 1986-11-04 Research Dynamics Incorporated High level gamma radiation dosimeter
JPS6183871A (en) * 1984-09-29 1986-04-28 株式会社クボタ Water cooling cupola
EP0270331B1 (en) * 1986-12-01 1995-05-03 LEGRAND ELECTRIC LIMITED (Reg. no. 2769820) Occupancy detectors etc.
JPH0619327B2 (en) * 1988-03-10 1994-03-16 三洋電機株式会社 Infrared gas concentration meter
US5055685A (en) * 1989-12-01 1991-10-08 Optex Co., Ltd. Infrared detecting apparatus
DE4236618A1 (en) * 1992-10-29 1994-05-05 Hirschmann Richard Gmbh Co False alarm prevention device for infrared movement detector - has processor which generates alarm control signal only with occurrence of signal from external light sensor, when path of electrical signals from infrared detector deviates from preset course
CH684717A5 (en) * 1993-03-26 1994-11-30 Cerberus Ag A detector.
US5434413A (en) * 1993-10-01 1995-07-18 Texas Instruments Incorporated Virtual cold shield and cold filter for infrared detector arrays
GB9805022D0 (en) * 1998-03-11 1998-05-06 Rds Electronics Limited Passive infrared detectors and housings therefor
US20090020703A1 (en) * 2007-07-17 2009-01-22 Honeywell International, Inc Optical filter for improved white light immunity in an intrusion detector
US9108782B2 (en) * 2012-10-15 2015-08-18 S.C. Johnson & Son, Inc. Dispensing systems with improved sensing capabilities
US9449504B2 (en) 2013-03-21 2016-09-20 Microsoft Technology Licensing, Llc Code sequence control of infrared blaster

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278936A (en) * 1939-04-25 1942-04-07 American District Telegraph Co Radiant energy receiving system
US3188830A (en) * 1964-08-03 1965-06-15 Hughes Aircraft Co Thermal oscillation filter
DE2103909A1 (en) * 1970-02-06 1971-08-19 Optical Coaring Lab Inc Monitoring device to determine the presence of an intruder in a room
DE2836462A1 (en) * 1978-08-21 1980-03-06 Woerl Alarm August Woerl Inhab Room surveillance sensor system - uses optical lens assembly to focus IR emissions onto detector stage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734157A1 (en) * 1958-02-22 1979-02-01 Heimann Gmbh PASSIVE INFRARED ALARM
US3703718A (en) * 1971-01-07 1972-11-21 Optical Coating Laboratory Inc Infrared intrusion detector system
JPS49103690A (en) * 1973-02-02 1974-10-01

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278936A (en) * 1939-04-25 1942-04-07 American District Telegraph Co Radiant energy receiving system
US3188830A (en) * 1964-08-03 1965-06-15 Hughes Aircraft Co Thermal oscillation filter
DE2103909A1 (en) * 1970-02-06 1971-08-19 Optical Coaring Lab Inc Monitoring device to determine the presence of an intruder in a room
FR2080963A1 (en) * 1970-02-06 1971-11-26 Optical Coating Laboratory Inc
DE2836462A1 (en) * 1978-08-21 1980-03-06 Woerl Alarm August Woerl Inhab Room surveillance sensor system - uses optical lens assembly to focus IR emissions onto detector stage

Also Published As

Publication number Publication date
JPS5652791A (en) 1981-05-12
DE2937923A1 (en) 1981-06-11
US4307388A (en) 1981-12-22
GB2059056B (en) 1983-08-24
DE2937923C2 (en) 1984-05-24
BR8005968A (en) 1981-03-31
GB2059056A (en) 1981-04-15
EP0025983A2 (en) 1981-04-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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Effective date: 19811022

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19830712

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DOENGES, GERHARD, DIPL.-ING.

Inventor name: HERWIG, THOMAS, DIPL.-PHYS.