EP0825574A1 - Détecteur de mouvement avec au moins une lentille convergente - Google Patents

Détecteur de mouvement avec au moins une lentille convergente Download PDF

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Publication number
EP0825574A1
EP0825574A1 EP97113619A EP97113619A EP0825574A1 EP 0825574 A1 EP0825574 A1 EP 0825574A1 EP 97113619 A EP97113619 A EP 97113619A EP 97113619 A EP97113619 A EP 97113619A EP 0825574 A1 EP0825574 A1 EP 0825574A1
Authority
EP
European Patent Office
Prior art keywords
infrared sensor
sensor
circuit board
motion detector
heat radiation
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
EP97113619A
Other languages
German (de)
English (en)
Other versions
EP0825574B1 (fr
Inventor
Günter Prof. Dr. Hofmann
Manfred Dr. Zimmerhackl
Volkmar Dr. Norkus
Jens-Olaf Lang
Rainer Dr. Rosch
Robert Zapp
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 Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0825574A1 publication Critical patent/EP0825574A1/fr
Application granted granted Critical
Publication of EP0825574B1 publication Critical patent/EP0825574B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a motion detector according to the preamble of claim 1.
  • Motion detectors are usually designed as passive IR motion detectors.
  • at least one converging lens focuses the incident, moving objects, in particular from people, emitted heat radiation on an infrared sensor. This generates electrical signals from this, from which a message to be monitored in a Space detected movements can be derived.
  • electrical Components, especially the infrared sensor are used parallel to the receiving plane of the infrared sensor in the housing of the motion detector.
  • the constructive design of motion detectors with pyroelectric infrared sensors is essentially from the design of the sensor and the geometry of the used Lentils determined. With a given detection characteristic and range of the motion detector are changes to the dimensions and position the lens and the distance to the sensor. With an arrangement like this e.g. B. is known from EP 01 13 468 B1, a motion detector with a detection angle of 180 degrees. With such a structure shown in Fig. 1 the overall height of the device results from the components lens, sensor, housing of the motion detector and position of the circuit board. The sensor becomes direct or in combination with carrier elements on the side of the circuit board facing the lens mounted so that the sensor elements for heat radiation are easily accessible the circuit board.
  • the object of the invention is a motion detector according to the preamble of the claim 1 to create, despite its relative by the physical circumstances Rigid structure is reduced in height, without this one significant change in the optical determining the detection characteristic System needs.
  • a reduction in the overall height is advantageously achieved in that the Infrared sensor is arranged in one plane, seen from the converging lens lies behind the circuit board.
  • the circuit board must have an opening in this area be seen that is designed so that the focused heat radiation the Infrared sensor can reach.
  • the opening in the printed circuit board is so large that it is direct incident heat radiation reaches the infrared sensor unhindered.
  • the mirrors can thus arranged in front of the circuit board on its side facing the converging lens will. The deflecting effect also causes the laterally incident heat radiation through the same opening to the infrared sensor.
  • bracket part To attach the bracket part to the circuit board between the support part for the mirror and the sensor holder are provided with a clamping device with latches, which enables the bracket part (11, 12) to be clamped at the edge of the opening.
  • the infrared sensor is equipped with a flat pack sensor housing.
  • This housing is, as its name suggests, much flatter than conventional housings, so that the necessary distance between the circuit board and the bottom of the housing is reduced.
  • the infrared sensor 3 with its sensor elements 6 mounted on the side of the printed circuit board 4 facing the converging lens 2. According to Fig. 2 the overall height of the arrangement can be significantly reduced. This is in the circuit board 4, an opening 8 is cut out, which is the heat radiation focused by the converging lens 2 allows to penetrate freely into the area behind the circuit board 4.
  • the infrared sensor 3 is now arranged here, with its two sensor elements 6 is approximately at the focal point of the converging lens 2, clearly behind the printed circuit board 4.
  • the Housing structure of the infrared sensor 3 with a flat pack sensor housing 7 facilitated additionally a particularly flat design of the motion detector.
  • a specially designed mounting part is particularly advantageous for the overall structure 11, 12, which receives the infrared sensor 3 with a flat-pack sensor housing 7 Sensor bracket 12 and a support member 11 for mirror 10 is made.
  • This Bracket part 11, 12 is designed in the area of the sensor bracket 12 so that the infrared sensor 3 can be used comfortably and its location is precisely defined.
  • one will endeavor to minimize the distance 9 to the device housing 5 without the assignment of the holder part 11, 12 to the circuit board 4 and their assignment to Negative lens 2 affect.
  • the mirrors 10 fastened to the carrier part 11 lie on the side of the printed circuit board 4 assigned to the converging lens 2 and are arranged such that the one to be detected is lateral incident heat radiation as well as the directly incident heat radiation can reach the infrared sensor 3 through the opening 8 unhindered.
  • Locking device with locking lugs 13 allows an exact positioning of the mounting part 11, 12 in the edge region of the opening 8 on the printed circuit board 4. This is an exact Alignment of all optically effective parts to each other guaranteed.
EP97113619A 1996-08-13 1997-08-07 Détecteur de mouvement avec au moins une lentille convergente Expired - Lifetime EP0825574B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19632514 1996-08-13
DE19632514A DE19632514A1 (de) 1996-08-13 1996-08-13 Bewegungsmelder mit mindestens einer Sammellinse

Publications (2)

Publication Number Publication Date
EP0825574A1 true EP0825574A1 (fr) 1998-02-25
EP0825574B1 EP0825574B1 (fr) 2001-06-27

Family

ID=7802451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97113619A Expired - Lifetime EP0825574B1 (fr) 1996-08-13 1997-08-07 Détecteur de mouvement avec au moins une lentille convergente

Country Status (8)

Country Link
EP (1) EP0825574B1 (fr)
AT (1) ATE202649T1 (fr)
CZ (1) CZ246197A3 (fr)
DE (2) DE19632514A1 (fr)
ES (1) ES2159073T3 (fr)
HU (1) HUP9701384A2 (fr)
NO (1) NO973708L (fr)
PL (1) PL321562A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL126808U1 (pl) * 2017-11-21 2019-06-03 Wojciech Zawadzki Samochodowy czujnik alarmowy

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821302B4 (de) * 1998-05-13 2005-12-15 Abb Patent Gmbh Passiv-Infrarot-Bewegungsmelder
DE102006016395B3 (de) * 2006-04-07 2007-07-19 Abb Patent Gmbh Detektor/Linsen-Anordnung eines Passiv-Infrarotbewegungsmelders

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113468A2 (fr) * 1983-01-05 1984-07-18 Marcel Dipl.-Ing. ETH Züblin Dispositif de déflexion des rayons optiques

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142526A (en) * 1981-02-27 1982-09-03 Fujitsu Ltd Infrared detector
DE3803278A1 (de) * 1988-02-04 1989-08-17 Brueck Electronic Beg Gmbh Infrarot-signalgeber
US5026990A (en) * 1989-08-28 1991-06-25 Sentrol, Inc. Method and apparatus for installing infrared sensors in intrusion detection systems
DE3942830C2 (de) * 1989-12-23 1999-03-04 Asea Brown Boveri Passiv-Infrarot-Bewegungsmelder
DE4315183A1 (de) * 1993-05-07 1994-11-10 Merten Gmbh & Co Kg Geb Bewegungsmelder
DE4333707C2 (de) * 1993-10-02 1996-12-05 Insta Elektro Gmbh & Co Kg Passiv-Infrarot-Bewegungsmelder
US5545896A (en) * 1994-06-28 1996-08-13 Santa Barbara Research Center Optically immersed semiconductor photodetectors
DE4426919B4 (de) * 1994-07-29 2006-03-23 Insta Elektro Gmbh Passiv-Infrarot-Bewegungsmelder mit einstellbarem Erfassungsbereich

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113468A2 (fr) * 1983-01-05 1984-07-18 Marcel Dipl.-Ing. ETH Züblin Dispositif de déflexion des rayons optiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL126808U1 (pl) * 2017-11-21 2019-06-03 Wojciech Zawadzki Samochodowy czujnik alarmowy

Also Published As

Publication number Publication date
HUP9701384A2 (hu) 1998-04-28
ES2159073T3 (es) 2001-09-16
NO973708L (no) 1998-02-16
DE59703893D1 (de) 2001-08-02
ATE202649T1 (de) 2001-07-15
EP0825574B1 (fr) 2001-06-27
DE19632514A1 (de) 1998-02-19
HU9701384D0 (en) 1997-10-28
PL321562A1 (en) 1998-02-16
NO973708D0 (no) 1997-08-12
CZ246197A3 (cs) 1999-01-13

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