EP0402829A3 - Method and device for detecting an intruder using a passive infra-red motion detector - Google Patents

Method and device for detecting an intruder using a passive infra-red motion detector Download PDF

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Publication number
EP0402829A3
EP0402829A3 EP19900111007 EP90111007A EP0402829A3 EP 0402829 A3 EP0402829 A3 EP 0402829A3 EP 19900111007 EP19900111007 EP 19900111007 EP 90111007 A EP90111007 A EP 90111007A EP 0402829 A3 EP0402829 A3 EP 0402829A3
Authority
EP
European Patent Office
Prior art keywords
heat source
signals
intruder
detecting
motion detector
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Withdrawn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
EP19900111007
Other languages
German (de)
French (fr)
Other versions
EP0402829A2 (en
Inventor
Bernhard Dr. Hering
Konrad Kraus
Harald Dipl.-Ing. Schermann
Karlheinz Dipl.-Ing. Schreyer (Fh)
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0402829A2 publication Critical patent/EP0402829A2/en
Publication of EP0402829A3 publication Critical patent/EP0402829A3/en
Withdrawn legal-status Critical Current

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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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Ein Sensorkopf (SK) weist mehrere Sensorelemente auf, welche jeweils einen keulenförmigen Bereich (KB) erfassen und bei Eintritt der Wärmequelle (EN) ein Signal abgeben. Es sind zumindest zwei Infrarot-Sensorköpfe (SK1, SK2) in einem bestimmten Abstand (a) zueinander angeordnet und auf einen gemeinsamen Erfassungsbereich (EB) ausgerichtet. Aus den abgegebenen Signalen wird durch Triangulation die Bewegungsbahn der Wärmequelle (EN) ermittelt und hieraus ein Alarmkriterium abgeleitet. Dabei werden die in Abhängigkeit von der Position und der Ausdehnung der Wärmequelle (EN) unterschiedlich hohen, in den einzelnen Sensorelementen auftretenden Signale jeweils verstärkt und digitalisiert. Durch geometrisch richtige Richtung der einzelnen digitalisierten Signale wird für jeden Sensorkopf (SK1, SK2) ein Richtungsvektor zur Wärmequelle (EN) berechnet und fortlaufend aus den Schnittpunkten zweier entsprechender Richtungsvektoren die momentane Position der Wärmequelle ermittelt. Hieraus wird die Spur der sich bewegenden Wärmequelle gebildet und aus der Form und Länge der Spur ein Alarmkriterium abgeleitet. A sensor head (SK) has several sensor elements, which each cover a club-shaped area (KB) and emit a signal when the heat source enters. There are at least two infrared sensor heads (SK1, SK2) in a particular one Distance (a) to each other and to a common Detection area (EB) aligned. From the emitted signals by triangulation the movement path of the heat source (EN) determined and an alarm criterion derived from this. Here will depend on the position and extent the heat source (EN) of different heights, in the individual Signals occurring sensor elements each amplified and digitized. By geometrically correct direction of individual digitized signals for each sensor head (SK1, SK2) a direction vector to the heat source (EN) is calculated and continuously from the intersection of two corresponding ones Direction vectors determined the current position of the heat source. From this the trace of the moving heat source is formed and an alarm criterion from the shape and length of the track derived.

EP19900111007 1989-06-14 1990-06-11 Method and device for detecting an intruder using a passive infra-red motion detector Withdrawn EP0402829A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3919488 1989-06-14
DE3919488 1989-06-14

Publications (2)

Publication Number Publication Date
EP0402829A2 EP0402829A2 (en) 1990-12-19
EP0402829A3 true EP0402829A3 (en) 1991-06-12

Family

ID=6382750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900111007 Withdrawn EP0402829A3 (en) 1989-06-14 1990-06-11 Method and device for detecting an intruder using a passive infra-red motion detector

Country Status (1)

Country Link
EP (1) EP0402829A3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693011B1 (en) * 1992-06-29 1994-09-23 Matra Sep Imagerie Inf Method and device for monitoring a three-dimensional scene, using imagery sensors.
US5491467A (en) * 1994-01-31 1996-02-13 C & K Systems, Inc. Location independent intrusion detection system
NL9400670A (en) * 1994-04-26 1995-12-01 Marinus Bernardus De Goeij Alarm system and a motion detector suitable therefor
CH691151A5 (en) * 1994-06-09 2001-04-30 Edouard Menoud Device monitoring and alerting to the presence of the body in danger in a pool.
DE19520891A1 (en) * 1995-06-08 1996-12-12 Abb Patent Gmbh Arrangement with emissivity structure in the infrared range
DE19520890A1 (en) * 1995-06-08 1996-12-12 Abb Patent Gmbh Arrangement for detecting the direction of movement of people
DE19548578C2 (en) * 1995-12-27 2001-02-08 Elbau Elektronik Bauelemente G Position-selective passive infrared intrusion sensor
GB2375251B (en) 2001-04-30 2003-03-05 Infrared Integrated Syst Ltd The location of events in a three dimensional space under surveillance
EP1361553B1 (en) * 2002-05-08 2008-07-16 Infrared Integrated Systems Ltd. Surveillance system for locating events in a three-dimensional space
EP2541519A1 (en) * 2011-06-30 2013-01-02 Xtralis AG Method for operating systems with PIR detectors
GB2542087B (en) * 2014-07-30 2019-03-27 Tyco Fire & Security Gmbh Method and system for passive tracking of moving objects

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402204A1 (en) * 1974-01-17 1975-07-24 Ficht Reinhold Method for determining spatial position of a point - uses three optical angle measuring devices placed at the corners of a triangle
DE3023290A1 (en) * 1980-06-21 1982-03-04 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Ground target locating device for low-flying aircraft - uses separate infrared sensors for long-range and close-range scanning
DE3404402C1 (en) * 1984-02-08 1985-04-25 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Device for the optical angular detection of a moving target
DE3642196A1 (en) * 1986-12-10 1988-06-23 Mel Mikro Elektronik Gmbh Optoelectronic collision protection device for vehicles
WO1989006806A1 (en) * 1988-01-19 1989-07-27 Peter Frederick Bradbeer Direction sensitive energy detecting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402204A1 (en) * 1974-01-17 1975-07-24 Ficht Reinhold Method for determining spatial position of a point - uses three optical angle measuring devices placed at the corners of a triangle
DE3023290A1 (en) * 1980-06-21 1982-03-04 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Ground target locating device for low-flying aircraft - uses separate infrared sensors for long-range and close-range scanning
DE3404402C1 (en) * 1984-02-08 1985-04-25 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Device for the optical angular detection of a moving target
DE3642196A1 (en) * 1986-12-10 1988-06-23 Mel Mikro Elektronik Gmbh Optoelectronic collision protection device for vehicles
WO1989006806A1 (en) * 1988-01-19 1989-07-27 Peter Frederick Bradbeer Direction sensitive energy detecting apparatus

Also Published As

Publication number Publication date
EP0402829A2 (en) 1990-12-19

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