EP0435120A2 - Détecteur passif de mouvement à infrarouge - Google Patents

Détecteur passif de mouvement à infrarouge Download PDF

Info

Publication number
EP0435120A2
EP0435120A2 EP90124321A EP90124321A EP0435120A2 EP 0435120 A2 EP0435120 A2 EP 0435120A2 EP 90124321 A EP90124321 A EP 90124321A EP 90124321 A EP90124321 A EP 90124321A EP 0435120 A2 EP0435120 A2 EP 0435120A2
Authority
EP
European Patent Office
Prior art keywords
infrared
fresnel lens
infrared rays
lens system
detection area
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.)
Ceased
Application number
EP90124321A
Other languages
German (de)
English (en)
Other versions
EP0435120A3 (en
Inventor
Lothar Blomberg
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.)
ABB AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
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 Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Publication of EP0435120A2 publication Critical patent/EP0435120A2/fr
Publication of EP0435120A3 publication Critical patent/EP0435120A3/de
Ceased legal-status Critical Current

Links

Images

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

  • the invention relates to a passive infrared motion detector according to the preamble of claim 1.
  • Passive infrared motion detectors are essentially devices which trigger a switching process as a function of the detected infrared radiation of an object emitting heat radiation. They are used to monitor a room area for moving objects, whereby the passive infrared motion detectors e.g. react to the change in heat radiation in the detection area to be monitored.
  • Such an infrared radiation object is, for example, a person who is moving in a room to be monitored.
  • a passive infrared motion detector only works as a receiver of infrared heat radiation, whereas other types of infrared motion detectors have an active infrared transmitter.
  • a passive infrared motion detector with an azimuthal detection angle of 180 ° which has an infrared sensitive sensor, ie an optoelectric converter, in the interior of a housing.
  • an infrared sensitive sensor ie an optoelectric converter
  • frontally incident infrared rays from the detection area to be monitored are bundled directly onto the infrared sensor, whereas laterally infrared rays incident from the detection area to be monitored are reflected onto the infrared sensor only after intermediate reflection at a deflecting mirror system.
  • the detection characteristic of the passive infrared motion detector known in the prior art is disadvantageous insofar as only horizontal and / or slightly inclined beam profiles can be detected in the azimuthal detection range of 180 °. If the passive infrared motion detector is installed at a certain height above the ground on a house wall as usual, it is known to detect the infrared rays coming from the area below the passive infrared motion detector, the passive infrared - To design the motion detector to be pivotable or to provide two Fresnel lens systems arranged one above the other. However, a complete monitoring of the area immediately below the motion detector while maintaining the detection characteristics for the infrared rays incident frontally and laterally is not possible with the known systems. The invention seeks to remedy this.
  • incident infrared rays from a detection area located below the passive infrared motion detector are reflected on the optoelectric transducer of the infrared sensor after at least one deflecting mirror surface provided for this purpose.
  • the deflecting mirror surface is arranged inclined above the respective horizontal main beam of the frontally and laterally incident infrared rays in such a way that the infrared rays incident from the space area below the passive infrared motion detector and which are inter-reflected on the deflecting mirror surface are deflected onto the infrared sensor.
  • the additional deflecting mirror according to the invention for the infrared rays arriving from below is combined with the deflecting mirror system known in the prior art, in which the first infrared rays incident frontally from a first detection area and bundled in associated Fresnel lenses of the Fresnel lens system are immediately combined be focused on the infrared sensor and in which from a second detection area laterally incident second infrared rays bundled in assigned Fresnel lenses of the Fresnel lens system are only thrown onto the infrared sensor after intermediate reflection at a deflection mirror system known per se.
  • continuous monitoring of a semi-conical area is possible, which has a detection characteristic of 180 ° azimuth and 90 ° elevation.
  • a housing recess having a Fresnel lens system faces the detection area located below the passive infrared motion detector, the deflecting mirror surface according to the invention for the infrared rays arriving from below within the housing in the beam path between the Fresnel lens system and the infrared sensor is arranged. It is necessary here that the deflecting mirror is arranged above the respective horizontal main beam of the frontally and laterally incident infrared rays, so that their detection is still guaranteed.
  • a housing recess having a further Fresnel lens system can also be provided above the Fresnel lens system provided for the frontally and laterally incident infrared rays and can face a detection area located above the passive infrared motion detector. It is provided here that the deflecting mirror surface is likewise arranged within the housing in the beam path between the Fresnel lens system and the infrared sensor, but below the respective horizontal main beam of the infrared rays incident at the front and laterally.
  • a spatial detection range of 180 ° azimuth and 180 ° elevation can advantageously be realized. All that is required here is that the now at least two deflecting mirror surfaces, in the manner of the deflecting mirror arrangement known in the prior art, are offset from one another and arranged at an angle to one another, so that firstly the infrared rays incident from above and below are reflected on the infrared sensor and, secondly, the deflecting mirror surfaces according to the invention do not Influencing the beam path of the frontal and lateral incident infrared rays.
  • Fig. 1 shows a front view of the passive infrared motion detector 1 according to the invention with window-like housing recesses 3 in a housing 2.
  • a Fresnel lens plastic film 4 is clamped semicircularly convex.
  • Infrared rays S I incident from the front from a first detection area I are thus bundled directly onto infrared sensors 9 by means of the Fresnel lens plastic film 4.
  • Infrared rays S II incident laterally from a second detection area II are reflected with the help of the Fresnel lens plastic film 4 only after intermediate reflection on two deflecting mirrors 8 on the infrared sensors 9.
  • the Fresnel lens system located in the beam path of the laterally incident infrared rays is illustrated here by means of a schematically represented Fresnel lens 5.
  • a deflection mirror surface 7 is provided for the detection of infrared rays S III present below the passive infrared motion detector 1 and arriving from a third detection area III, which is arranged in the direction of view of the frontally incident infrared rays S I in front of the deflection mirrors 8 for the laterally incident infrared rays S II .
  • Fig. 2 shows a further embodiment with respect to the arrangement of the deflecting mirror surface 7, wherein the deflecting mirror surface 7 is arranged in the arrangement area R 1 above a deflecting mirror 8 and laterally offset to this.
  • FIG. 3 shows a schematic side view of the passive infrared motion detector 1 shown in FIG. 1.
  • the infrared radiation S III arriving from the third detection area III passes through a schematically illustrated Fresnel lens 5 and is reflected on the infrared sensor 9 at the deflecting mirror surface 7 according to the invention. Since the UmlenkLite Structure 7 not r2 r1 in by the boundary lines u o protrudes circumscribed region of space, influencing of the frontal incident infrared rays S I is excluded. Because the deflection mirror 7 does not protrude into the beam path of the laterally incident infrared rays S II , it is also not possible to influence the infrared rays S II .
  • FIG. 4 shows a median sectional view of a passive infrared motion detector 1 known in the prior art with a deflecting mirror system 8 for the laterally incident infrared rays S II .
  • the frontally incident infrared rays S I are focused directly on the infrared sensor 9 by means of the Fresnel lens plastic film 4.
  • FIG. 5 shows an installation example for the passive infrared motion detector 1 according to the invention, which is predominantly installed at a height 4 above the ground 6 on a house wall.
  • the detection of infrared rays is additionally ensured in the detection areas III, IV below or above the semi-conical detection characteristic already known in the prior art.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
EP19900124321 1989-12-23 1990-12-15 Passive infra-red movement detector Ceased EP0435120A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942830 1989-12-23
DE3942830A DE3942830C2 (de) 1989-12-23 1989-12-23 Passiv-Infrarot-Bewegungsmelder

Publications (2)

Publication Number Publication Date
EP0435120A2 true EP0435120A2 (fr) 1991-07-03
EP0435120A3 EP0435120A3 (en) 1992-06-17

Family

ID=6396351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900124321 Ceased EP0435120A3 (en) 1989-12-23 1990-12-15 Passive infra-red movement detector

Country Status (3)

Country Link
US (1) US5083025A (fr)
EP (1) EP0435120A3 (fr)
DE (1) DE3942830C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652422A3 (fr) * 1993-11-06 1996-02-21 Abb Patent Gmbh Dispositif pour recevoir des rayons lumineux.
EP0623905A3 (fr) * 1993-05-07 1996-10-02 Merten Gmbh & Co Kg Geb Détecteur de mouvement.

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200624A (en) * 1991-09-09 1993-04-06 Pittway Corporation Wide-angle radiant energy detector
US5393978A (en) * 1993-02-04 1995-02-28 Schwarz; Frank Infrared detectors having front and rear fields of view
DE4308983A1 (de) * 1993-03-20 1994-09-22 Abb Patent Gmbh Sensorschalter mit einem auf Bewegung reagierenden Sensor
DE4333707C2 (de) * 1993-10-02 1996-12-05 Insta Elektro Gmbh & Co Kg Passiv-Infrarot-Bewegungsmelder
US5418368A (en) * 1993-10-05 1995-05-23 Intelectron Products Company Wide-angle motion detector with close-in reflector
US5414255A (en) * 1993-11-08 1995-05-09 Scantronic Limited Intrusion detector having a generally planar fresnel lens provided on a planar mirror surface
DE4445197A1 (de) * 1994-12-17 1996-06-20 Abb Patent Gmbh Passiv-Infrarot-Bewegungsmelder mit Sammellinsen zu einer Rundumerfassung von 360 DEG
US5640143A (en) * 1995-02-06 1997-06-17 Mytech Corporation Occupancy sensor and method of operating same
CA2157237A1 (fr) * 1995-08-30 1997-03-01 John W. Patchell Detecteur de rayonnement thermique
DE19632514A1 (de) * 1996-08-13 1998-02-19 Abb Patent Gmbh Bewegungsmelder mit mindestens einer Sammellinse
US6078253A (en) * 1997-02-04 2000-06-20 Mytech Corporation Occupancy sensor and method of operating same
US5986357A (en) 1997-02-04 1999-11-16 Mytech Corporation Occupancy sensor and method of operating same
US6222191B1 (en) 1997-12-24 2001-04-24 Mytech Corporation Occupancy sensor
DE19805622A1 (de) * 1998-02-12 1999-08-19 Thomson Brandt Gmbh Bewegungsmelder zum Ein- und/oder Ausschalten von einem elektronischen Gerät
DE10019999A1 (de) * 2000-04-22 2001-10-25 Abb Patent Gmbh Passiv-Infrarot-Bewegungsmelder
US6753766B2 (en) 2001-01-15 2004-06-22 1138037 Ontario Ltd. (“Alirt”) Detecting device and method of using same
US7634341B2 (en) * 2001-03-07 2009-12-15 1138037 Ontario Ltd. (“Alirt”) Detecting device and method of using same
US6881957B2 (en) 2003-01-08 2005-04-19 Home Data Source, Llc Passive infrared device for detection of boundary crossings
US8905311B2 (en) * 2010-03-11 2014-12-09 Flir Systems, Inc. Infrared camera with infrared-transmissive dome systems and methods
US9001212B2 (en) * 2010-03-11 2015-04-07 Flir Systems, Inc. Infrared transmissive dome systems and methods
US8455831B2 (en) * 2010-12-31 2013-06-04 Rockwell Automation Technologies, Inc. Sensing assembly having an oblique viewing angle range and methods of assembling, mounting and orienting the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958118A (en) * 1975-02-03 1976-05-18 Security Organization Supreme-Sos-Inc. Intrusion detection devices employing multiple scan zones
US4375034A (en) * 1980-07-28 1983-02-22 American District Telegraph Company Passive infrared intrusion detection system
DE3381729D1 (de) * 1983-01-05 1990-08-16 Zueblin Marcel Optisches bauelement zum umlenken optischer strahlen.
GB8522086D0 (en) * 1985-09-05 1985-10-09 Maximal Security Products Ltd Infra-red detector system
US4841284A (en) * 1987-10-19 1989-06-20 C & K Systems, Inc. Infrared intrusion detection system incorporating a fresnel lens and a mirror
DE3812969A1 (de) * 1988-04-19 1989-11-02 Merten Gmbh & Co Kg Geb Infrarot-bewegungsmelder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0623905A3 (fr) * 1993-05-07 1996-10-02 Merten Gmbh & Co Kg Geb Détecteur de mouvement.
EP0652422A3 (fr) * 1993-11-06 1996-02-21 Abb Patent Gmbh Dispositif pour recevoir des rayons lumineux.
US5677529A (en) * 1993-11-06 1997-10-14 Abb Patent Gmbh Passive infrared sensor using a pair of sensors and reflectors for a 270 degree field of view

Also Published As

Publication number Publication date
DE3942830C2 (de) 1999-03-04
EP0435120A3 (en) 1992-06-17
US5083025A (en) 1992-01-21
DE3942830A1 (de) 1991-06-27

Similar Documents

Publication Publication Date Title
EP0435120A2 (fr) Détecteur passif de mouvement à infrarouge
EP0652422B1 (fr) Dispositif pour recevoir des rayons lumineux
EP0113468B1 (fr) Dispositif de déflexion des rayons optiques
EP0360126B1 (fr) Méthode d'opération d'un détecteur optique de fumée et détecteur de fumée pour la mise en oeuvre de la méthode
DE2653110C3 (de) Infrarotstrahlungs-Einbruchdetektor
EP2378309B1 (fr) Capteur optoélectronique et procédé de production d'informations sur des objets dans une zone de surveillance
EP0020917B1 (fr) Arrangement optique pour détecteur de mouvement infrarouge passif
DE2904654A1 (de) Optische anordnung fuer einen passiven infrarot-bewegungsmelder
EP0218055B1 (fr) Détecteur de mouvement à infrarouge
DE3129753A1 (de) Passive infrarot-raumschutzeinrichtung
EP2084897A1 (fr) Système de caméra pour la surveillance d'une zone d'espace
DE3119720C2 (de) Auf elektromagnetische Strahlung ansprechender Bewegungsmelder
EP3862780B1 (fr) Balayeur laser de sécurité et procédé de surveillance de vitre frontale
DE19848272B4 (de) Passiver Infrarot-Detektor
EP1933172B1 (fr) Agencement de barrière lumineuse
EP2375266B1 (fr) Capteur optoélectronique et procédé de sécurisation
EP4118405B1 (fr) Détecteur de mouvement infrarouge
EP1931133A1 (fr) Procédé et dispositif d'acquisition optique d'une structure
EP2375264A1 (fr) Scanner de sécurité avec surveillance d'encrassement
DE202008004711U1 (de) Lichtgitterkaskadierung
EP0421119B1 (fr) Indicateur passif de mouvement infrarouge
EP0319876A2 (fr) Avertisseur de mouvement avec détecteur infrarouge
DE102007040692B4 (de) Optoelektronische Schutzeinrichtung
EP0647928B1 (fr) Détecteur passif de mouvement à infrarouge
DE102006053359B4 (de) Optoelektronische Sensoranordnung und Verfahren zum Justieren einer optoelektronischen Sensoranordnung

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE GB LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE GB LI NL SE

17P Request for examination filed

Effective date: 19921211

17Q First examination report despatched

Effective date: 19950224

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19970222

R18R Application refused (corrected)

Effective date: 19970129