EP0825574B1 - Bewegungsmelder mit mindestens einer Sammellinse - Google Patents
Bewegungsmelder mit mindestens einer Sammellinse Download PDFInfo
- Publication number
- EP0825574B1 EP0825574B1 EP97113619A EP97113619A EP0825574B1 EP 0825574 B1 EP0825574 B1 EP 0825574B1 EP 97113619 A EP97113619 A EP 97113619A EP 97113619 A EP97113619 A EP 97113619A EP 0825574 B1 EP0825574 B1 EP 0825574B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- infrared sensor
- circuit board
- motion detector
- sensor
- detector according
- 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.)
- Expired - Lifetime
Links
- 230000033001 locomotion Effects 0.000 title claims description 25
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 241000219739 Lens Species 0.000 description 20
- 238000010276 construction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 235000014647 Lens culinaris subsp culinaris Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
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 become. 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 to be clamped to 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 allowed 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. there 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 those assigned to the converging lens 2 Side of the circuit board 4 and are arranged so that the lateral to be detected incident heat radiation as well as the direct incident heat radiation through the opening 8 can reach the infrared sensor 3 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.
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Helmets And Other Head Coverings (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Couplings Of Light Guides (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Fire-Detection Mechanisms (AREA)
- Burglar Alarm Systems (AREA)
- Push-Button Switches (AREA)
- Vehicle Body Suspensions (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
- Fig. 1
- den Aufbau eines herkömmichen Bewegungsmelders mit dem Infrarotsensor auf der der Sammellinse zugewandten Seite der Leiterplatte,
- Fig. 2
- den Aufbau des erfindungsgemäßen Bewegungsmelders mit dem Infrarotsensor auf der von der Sammellinse abgewandten Seite der Leiterplatte.
Claims (7)
- Bewegungsmelder mit mindestens einer Sammellinse (2), die einfallende, von beweglichen Objekten, insbesondere von Personen, emittierte Wärmestrahlung auf mindestens einen Infrarotsensor (3) fokussiert, der hieraus elektrische Signale erzeugt, aus denen eine Meldung der in einem zu überwachenden Raum erfaßten Bewegungen ableitbar ist, und mit einer zur Aufnahme von elektrischen Bauelementen geeigneten, parallel zur Empfangsebene des Infrarotsensors (3) im Gehäuse des Bewegungsmelders positionierten Leiterplatte (4), dadurch gekennzeichnet, daß der mindestens eine Infrarotsensor (3) in einer von der Sammellinse (2) aus gesehen hinter der Leiterplatte (4) liegenden Ebene angeordnet ist, und die Leiterplatte (4) in diesem Bereich eine Öffnung (8) besitzt, die so ausgebildet ist, daß die fokussierte Wärmestrahlung den Infrarotsensor (3) erreicht.
- Bewegungsmelder nach Anspruch 1, dadurch gekennzeichnet, daß der Infrarotsensor (3) an einer Sensorhalterung (12) befestigt ist, die sich im Randbereich der Öffnung (8) verankert und eine hinter der Leiterplatte (4) liegende Aufnahme für den Infrarotsensor (3) bildet.
- Bewegungsmelder nach Anspruch 2, dadurch gekennzeichnet, daß die Sensorhalterung (12) mit einem Trägerteil (11) vereinigt ist, das zur Aufnahme von Spiegeln (10) dient.
- Bewegungsmelder nach Anspruch 3, dadurch gekennzeichnet, daß die Spiegel vor der Leiterplatte (4) auf ihrer der Sammellinse (2) zugewandten Seite angeordnet sind und zur Umlenkung lateral einfallender Wärmestrahlung dienen.
- Bewegungsmelder nach einem der vorhergehenden Ansprüche 3 bis 4, dadurch gekennzeichnet, daß zwischen dem Trägerteil (11) für die Spiegel (10) und der Sensorhalterung (12) eine Klemmvorrichtung mit Rastnasen (13) vorgesehen ist, die eine Klemmbefestigung der Halterung (11, 12) am Rand der Öffnung (8) ermöglicht.
- Bewegungsmelder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Infrarotsensor (3) mit einem flat-pack-Sensorgehäuse (7) ausgestattet ist.
- Bewegungsmelder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Infrarotsensor (3) in einem entsprechend den konstruktiven Vorgaben minimierten Abstand (9) vom Boden des Gerätegehäuses (5) montiert ist.
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 EP0825574A1 (de) | 1998-02-25 |
EP0825574B1 true EP0825574B1 (de) | 2001-06-27 |
Family
ID=7802451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97113619A Expired - Lifetime EP0825574B1 (de) | 1996-08-13 | 1997-08-07 | Bewegungsmelder mit mindestens einer Sammellinse |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0825574B1 (de) |
AT (1) | ATE202649T1 (de) |
CZ (1) | CZ246197A3 (de) |
DE (2) | DE19632514A1 (de) |
ES (1) | ES2159073T3 (de) |
HU (1) | HUP9701384A2 (de) |
NO (1) | NO973708L (de) |
PL (1) | PL321562A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (de) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detektor/Linsen-Anordnung eines Passiv-Infrarotbewegungsmelders |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19821302B4 (de) * | 1998-05-13 | 2005-12-15 | Abb Patent Gmbh | Passiv-Infrarot-Bewegungsmelder |
PL71224Y1 (pl) * | 2017-11-21 | 2020-02-28 | Wojciech Zawadzki | Samochodowy czujnik alarmowy |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57142526A (en) * | 1981-02-27 | 1982-09-03 | Fujitsu Ltd | Infrared detector |
EP0113468B1 (de) * | 1983-01-05 | 1990-07-11 | Marcel Dipl.-Ing. ETH Züblin | Optisches Bauelement zum Umlenken optischer Strahlen |
DE8816609U1 (de) * | 1988-02-04 | 1990-01-11 | B.E.G. Brueck Electronic Gmbh, 5253 Lindlar, De | |
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 |
-
1996
- 1996-08-13 DE DE19632514A patent/DE19632514A1/de not_active Withdrawn
-
1997
- 1997-08-01 CZ CZ972461A patent/CZ246197A3/cs unknown
- 1997-08-07 AT AT97113619T patent/ATE202649T1/de active
- 1997-08-07 ES ES97113619T patent/ES2159073T3/es not_active Expired - Lifetime
- 1997-08-07 DE DE59703893T patent/DE59703893D1/de not_active Expired - Lifetime
- 1997-08-07 EP EP97113619A patent/EP0825574B1/de not_active Expired - Lifetime
- 1997-08-11 PL PL97321562A patent/PL321562A1/xx unknown
- 1997-08-12 HU HU9701384A patent/HUP9701384A2/hu unknown
- 1997-08-12 NO NO973708A patent/NO973708L/no unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (de) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detektor/Linsen-Anordnung eines Passiv-Infrarotbewegungsmelders |
Also Published As
Publication number | Publication date |
---|---|
CZ246197A3 (cs) | 1999-01-13 |
DE19632514A1 (de) | 1998-02-19 |
HU9701384D0 (en) | 1997-10-28 |
DE59703893D1 (de) | 2001-08-02 |
ES2159073T3 (es) | 2001-09-16 |
PL321562A1 (en) | 1998-02-16 |
EP0825574A1 (de) | 1998-02-25 |
NO973708L (no) | 1998-02-16 |
ATE202649T1 (de) | 2001-07-15 |
HUP9701384A2 (hu) | 1998-04-28 |
NO973708D0 (no) | 1997-08-12 |
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