EP0361224A1 - Détecteur d'intrusion à infrarouge - Google Patents

Détecteur d'intrusion à infrarouge Download PDF

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Publication number
EP0361224A1
EP0361224A1 EP89117077A EP89117077A EP0361224A1 EP 0361224 A1 EP0361224 A1 EP 0361224A1 EP 89117077 A EP89117077 A EP 89117077A EP 89117077 A EP89117077 A EP 89117077A EP 0361224 A1 EP0361224 A1 EP 0361224A1
Authority
EP
European Patent Office
Prior art keywords
radiation
areas
infrared
detector
solid angle
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.)
Granted
Application number
EP89117077A
Other languages
German (de)
English (en)
Other versions
EP0361224B1 (fr
Inventor
Kurt Albert Müller
Hansjürg Mahler
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.)
Cerberus AG
Original Assignee
Cerberus AG
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 Cerberus AG filed Critical Cerberus AG
Priority to AT89117077T priority Critical patent/ATE96928T1/de
Publication of EP0361224A1 publication Critical patent/EP0361224A1/fr
Application granted granted Critical
Publication of EP0361224B1 publication Critical patent/EP0361224B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Definitions

  • infrared intrusion detectors For the monitoring of elongated rooms and corridors, specially adapted infrared intrusion detectors are used, which in the vertical plane have a relatively large, i.e. have a far-reaching sensitivity range and a relatively narrow sensitivity range in the horizontal plane. This creates a curtain-like sensitivity area that an intruder must pass through to gain access to a protected area.
  • Such an infrared intrusion detector is described in GB-A-2'080'945, in which such a "curtain" is generated in that a cylindrical mirror is arranged in front of the focusing mirror, which ensures the wide sensitivity range in the vertical plane.
  • a disadvantage of these infrared intrusion detectors is that they have different sensitivity to objects at different distances.
  • a disadvantage of this known infrared intrusion detection arrangement is that the space to be monitored is not sufficiently covered. Because of the gaps in particular in the vicinity of the detector (cf. FIG. 2), such infrared intrusion detectors are not completely sabotage-proof.
  • the object of the present invention is to provide an infrared intrusion detector which avoids the disadvantages of the previously known infrared intrusion detectors and which is in particular capable of continuously monitoring an elongated space by means of a curtain-like sensitivity zone in such a way that the penetration of an object emitting infrared radiation into the Sensitivity zone at any distance from the detector gives the same output from the infrared sensor.
  • the optical bundling means are constructed and arranged in such a way that the size of the solid angle formed by the infrared sensor as the vertex and the outer boundary line of the respective bundling means is a function of the distance of the effective area used for the radiation receiving areas from the detector, the solid angle the bundling means, which belong to radiation reception areas with the most distant and closest used effective areas, are largest and the solid angles of the bundling means, which belong to radiation reception areas with used effective areas at medium distances from the detector, are smallest.
  • the reason for this different weighting of the solid angle is that a close one and a distant intruder crosses fewer individual zones than an intruder in a medium range (see FIG. 6).
  • the optical focusing means preferably consist of a large number of parabolic mirrors, in particular a number between seven and fifteen.
  • the optical bundling means consist of a large number of concave mirrors in combination with a large number of Fresnel lenses, the Fresnel lenses preferably covering the more distant radiation reception areas and the concave mirrors covering the closer radiation reception areas.
  • FIGS. 1 and 2 The representation of the field pattern of a known infrared intrusion detector according to FIGS. 1 and 2 shows that the space to be monitored is not covered with sensitivity areas with sufficient density.
  • FIG. 7 shows the different sensitivity of infrared intrusion detectors to objects emitting infrared radiation as a function of the distance from the detector for two infrared intrusion detectors.
  • the sensor signal is in the ordinate axis [in relative units] and the distance of the infrared radiation is on the abscissa axis sending object specified in meters.
  • curve a) applies to an infrared penetration detector according to the present invention.
  • Curve c) indicates the detection threshold of the infrared intrusion detectors for an object emitting infrared radiation.
  • the curves apply to an object emitting infrared radiation, which has approximately the shape of an upright human being and which moves at different distances at a speed of 60 cm / sec across one or more of the radiation receiving areas I1 to I11.
  • the infrared intrusion detector according to the prior art the strong dependence of the infrared sensor signal on the distance.
  • the sensitivity of the infrared intrusion detector according to the invention is almost the same for all distances.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP89117077A 1988-09-22 1989-09-15 Détecteur d'intrusion à infrarouge Expired - Lifetime EP0361224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117077T ATE96928T1 (de) 1988-09-22 1989-09-15 Infraroteindringdetektor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3508/88 1988-09-22
CH3508/88A CH676642A5 (fr) 1988-09-22 1988-09-22

Publications (2)

Publication Number Publication Date
EP0361224A1 true EP0361224A1 (fr) 1990-04-04
EP0361224B1 EP0361224B1 (fr) 1993-11-03

Family

ID=4257502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117077A Expired - Lifetime EP0361224B1 (fr) 1988-09-22 1989-09-15 Détecteur d'intrusion à infrarouge

Country Status (7)

Country Link
US (1) US4990783A (fr)
EP (1) EP0361224B1 (fr)
AT (1) ATE96928T1 (fr)
CA (1) CA1313239C (fr)
CH (1) CH676642A5 (fr)
DE (1) DE58906096D1 (fr)
ES (1) ES2048253T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691531A1 (fr) * 1994-07-04 1996-01-10 Cerberus Ag Capteur pyroélectrique pour un détecteur à infrarouge
EP0707294A1 (fr) 1994-10-10 1996-04-17 Cerberus Ag Miroir pour un détecteur d'intrusion à infrarouge et détecteur d'intrusion à infrarouge avec un agencement de miroirs
WO2001067414A1 (fr) 2000-03-10 2001-09-13 Digital Security Controls Ltd. Detecteur a infrarouge passif distinguant les animaux familiers
US6800854B2 (en) 2001-11-05 2004-10-05 Siemens Building Technologies Ag Passive infrared detector

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681574A5 (fr) * 1991-03-01 1993-04-15 Cerberus Ag
US5311024A (en) * 1992-03-11 1994-05-10 Sentrol, Inc. Lens arrangement for intrusion detection device
EP0566852B1 (fr) * 1992-04-21 1998-08-26 Mitsubishi Denki Kabushiki Kaisha Disposition de détection du corps humain
US5955854A (en) 1992-09-29 1999-09-21 Prospects Corporation Power driven venting of a vehicle
DE4327229A1 (de) * 1993-08-13 1995-02-16 Abb Patent Gmbh Vorrichtung zum Einstellen mindestens eines auf eine bestimmte Stellgröße bezogenen Stellwertes bei einem Bewegungsmelder
CA2196014C (fr) * 1997-01-27 2001-05-08 Reinhart Karl Pildner Detecteur de mouvement passif a infrarouge a deux elements permettant la discrimination de tailles
US6157024A (en) * 1999-06-03 2000-12-05 Prospects, Corp. Method and apparatus for improving the performance of an aperture monitoring system
EP1089244B1 (fr) * 1999-10-01 2004-03-31 Siemens Building Technologies AG Disposition de miroirs dans un capteur passif d'infrarouge
ATE263403T1 (de) * 1999-10-01 2004-04-15 Siemens Building Tech Ag Passiv-infrarotmelder
EP1124209B1 (fr) * 2000-02-11 2006-04-26 Siemens Schweiz AG Détecteur de présence
US6693273B1 (en) 2000-05-02 2004-02-17 Prospects, Corp. Method and apparatus for monitoring a powered vent opening with a multifaceted sensor system
US6265972B1 (en) * 2000-05-15 2001-07-24 Digital Security Controls Ltd. Pet resistant pir detector
US7755052B2 (en) * 2003-03-14 2010-07-13 Suren Systems, Ltd. PIR motion sensor
EP1612750B1 (fr) * 2004-07-02 2008-11-19 Siemens Aktiengesellschaft Détecteur passif d'infrarouges
CN101167110B (zh) * 2005-04-01 2010-05-19 西荣科技有限公司 改进的无源红外移动传感器
DK2450859T3 (en) * 2010-11-05 2016-12-19 Vanderbilt Int Gmbh Multi Mirror Optics passive radiation detector.
EP2752688A1 (fr) * 2013-01-04 2014-07-09 Samsung Electronics Co., Ltd Lentille de fresnel et un module de capteur pyroélectricité comprenant celle-ci
US10122847B2 (en) * 2014-07-20 2018-11-06 Google Technology Holdings LLC Electronic device and method for detecting presence and motion
US10539718B2 (en) 2017-08-17 2020-01-21 Honeywell International Inc. Fresnel lens array with improved off-axis optical efficiency

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218055A1 (fr) * 1985-09-02 1987-04-15 Heimann GmbH Détecteur de mouvement à infrarouge
EP0303913A1 (fr) * 1987-08-11 1989-02-22 Cerberus Ag Détecteur d'intrusion

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339748A (en) * 1980-04-08 1982-07-13 American District Telegraph Company Multiple range passive infrared detection system
US4625115A (en) * 1984-12-11 1986-11-25 American District Telegraph Company Ceiling mountable passive infrared intrusion detection system
ATE54768T1 (de) * 1985-01-24 1990-08-15 Cerberus Ag Infrarot-einbruchdetektor.
GB2178532B (en) * 1985-07-17 1989-09-20 Racal Guardall Passive infra-red sensors
US4769545A (en) * 1986-11-26 1988-09-06 American Iris Corporation Motion detector
US4841284A (en) * 1987-10-19 1989-06-20 C & K Systems, Inc. Infrared intrusion detection system incorporating a fresnel lens and a mirror
DE3742031A1 (de) * 1987-12-11 1989-06-22 Asea Brown Boveri Bewegungsmelder mit einem infrarotdetektor
US4920268A (en) * 1989-01-31 1990-04-24 Detection Systems, Inc. Passive infrared detection system with substantially uniform sensitivity over multiple detection zones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218055A1 (fr) * 1985-09-02 1987-04-15 Heimann GmbH Détecteur de mouvement à infrarouge
EP0303913A1 (fr) * 1987-08-11 1989-02-22 Cerberus Ag Détecteur d'intrusion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691531A1 (fr) * 1994-07-04 1996-01-10 Cerberus Ag Capteur pyroélectrique pour un détecteur à infrarouge
EP0707294A1 (fr) 1994-10-10 1996-04-17 Cerberus Ag Miroir pour un détecteur d'intrusion à infrarouge et détecteur d'intrusion à infrarouge avec un agencement de miroirs
WO2001067414A1 (fr) 2000-03-10 2001-09-13 Digital Security Controls Ltd. Detecteur a infrarouge passif distinguant les animaux familiers
AU2001242129B2 (en) * 2000-03-10 2005-01-20 Tyco Safety Products Canada Ltd Pet resistant pir detector
US6800854B2 (en) 2001-11-05 2004-10-05 Siemens Building Technologies Ag Passive infrared detector

Also Published As

Publication number Publication date
EP0361224B1 (fr) 1993-11-03
ES2048253T3 (es) 1994-03-16
DE58906096D1 (de) 1993-12-09
CA1313239C (fr) 1993-01-26
US4990783A (en) 1991-02-05
CH676642A5 (fr) 1991-02-15
ATE96928T1 (de) 1993-11-15

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