EP2375389B1 - Capteur de mouvements à infrarouges - Google Patents

Capteur de mouvements à infrarouges Download PDF

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Publication number
EP2375389B1
EP2375389B1 EP11159468A EP11159468A EP2375389B1 EP 2375389 B1 EP2375389 B1 EP 2375389B1 EP 11159468 A EP11159468 A EP 11159468A EP 11159468 A EP11159468 A EP 11159468A EP 2375389 B1 EP2375389 B1 EP 2375389B1
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EP
European Patent Office
Prior art keywords
screen
sensor according
sensor
housing
movement
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Active
Application number
EP11159468A
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German (de)
English (en)
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EP2375389A1 (fr
Inventor
Stefan Sehlhoff
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.)
Steinel GmbH and Co KG
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Steinel GmbH and Co KG
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Application filed by Steinel GmbH and Co KG filed Critical Steinel GmbH and Co KG
Priority to EP12157767.0A priority Critical patent/EP2463835B1/fr
Publication of EP2375389A1 publication Critical patent/EP2375389A1/fr
Application granted granted Critical
Publication of EP2375389B1 publication Critical patent/EP2375389B1/fr
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    • 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

Definitions

  • the present invention relates to an infrared motion sensor according to claim 1.
  • a device is well known in the art and is used, for example, to control outdoor lights or the like. Lighting systems typically attached to house walls, ceilings, the roof area or door frame such that occurring in the detection range of the motion sensor movements of people can trigger a light activation.
  • movement sensors known generically have shading elements (diaphragms) in the form of detachable attachable (and for infrared radiation impermeable) plastic platelets with which the lens surface and consequently an effective detection range of the sensor unit can be limited. It is the same known to arrange such panels pivotally outside a housing. However, such an approach is cumbersome and less practical to handle, especially for technically unexperienced users.
  • a further variant for setting an effective detection range is the electronic adjustment, based on the sensitivity or signal strength of the signal output by the sensor unit.
  • the DE 198 48 272 A1 shows a motion sensor with an adjustable mirror and sensor unit.
  • the EP 1 847 972 B1 shows an infrared motion sensor, wherein the sensor unit by means of an adjusting element in the sensor housing relative to the sensor housing and to the sensor housing sitting lens unit along a predetermined arcuate adjustment path is possible.
  • a luminaire with an infrared motion sensor wherein a Fresnel lens via a screw mechanism is adjustable relative to a single infrared sensor.
  • the known device is not suitable for covering a large detection area, in particular no 360 ° extending detection area.
  • the complex structure of disadvantage and the need for the Fresnel lens is movable, ie adjustable to arrange.
  • a motion sensor which responds to infrared radiation.
  • the adjustment of the detection range is done via an adjustment of a single sensor relative to a fixed Aperture and a fixed lens.
  • a disadvantage is the low detection range and the fact that must be adjusted to adjust the detection range of the sensor with the entire electrical connection mimic.
  • An infrared motion detector which comprises a single infrared sensor and thus has a limited detection range.
  • the shutter is slidably disposed relative to the single sensor, with the corresponding slide mechanism to be operated directly by hand.
  • the disadvantage here is that a fine adjustment of the detection area is virtually impossible.
  • a photoelectric switching device comprising a light source for illuminating an object known.
  • the light of an incandescent lamp passes through a lens, a half mirror and a lens and is focused on an object to be detected.
  • the reflected light on the object passes through the lens, is reflected at the half mirror and passes through another lens from where it reaches a single, arranged on a circuit board photoelectric sensor.
  • the reference light quantity can be adjusted by turning a knob.
  • the known device has nothing in common with an infrared motion sensor and is sealed in a completely different technical field.
  • infrared motion sensors In some of the aforementioned infrared motion sensors, a complex, only cost-intensive realizable construction is needed. In other known infrared sensors, as in the variant with attachable panels, the handling is in need of improvement, in particular with regard to ensuring an exact or admisstufigen adjustment.
  • EP 1 887 535 A1 is an infrared motion sensor with an infrared sensitive and optically associated with a stationary lens unit housed in a sensor housing and designed to output an electronic motion detection signal Sensor unit known.
  • a single sensor unit which is associated with a diaphragm which is adjustable by means of a threaded element.
  • the present invention seeks to improve a generic infrared motion detector with respect to a simple, accurate, reproducible and easy to handle range setting.
  • the invention is based on the idea of designing the adjusting device for changing and / or adjusting the detection range of the sensor units in such a way that the diaphragm (shading element), which is preferably impermeable to infrared radiation and more preferably made of plastic, can be adjusted on a linear trajectory. in order to be able to limit the effective detection range of the sensor unit in this way. It is essential that the linear adjustment movement of the diaphragm from a rotational movement of a manually adjustable threaded element, preferably a spindle, alternatively results in a spindle nut.
  • a manually adjustable threaded element preferably a spindle
  • the aperture for adjusting and / or changing the detection range of the sensor units is operatively connected to a manually operable spindle or a manually operable spindle nut, that from the manual, exactly metered rotational movement of the spindle or the spindle nut a linear change in position of the diaphragm relative to the Sensor unit and preferably also relative to a, preferably spaced from the sensor units lens unit results.
  • a designed according to the concept of the invention infrared motion sensor thus realized in departure from the electronic, sensitivity-based distance setting and the known pivoting of the entire Sensor housing and the adjustment of the sensor units relative to the housing in a surprisingly simple manner feasible way intuitively and with good accuracy realizable range setting by providing a, for example by means of a screwdriver batätigbaren spindle drive, the user-side, rotating adjustment movement in a linear movement of the aperture relative to the, preferably fixed and thus robust and inexpensive mounted sensor unit allows.
  • the measure according to the invention makes it possible to expand or limit the detection range surprisingly simply and effectively, without the need for dazzling elements which are difficult to assemble, and without an ultimately unreliable electronic sensor signal having to be evaluated for range setting or limitation, and without the entire sensor units and / or the lens unit must be stored adjustable.
  • the adjusting device possibly up to a range accessible for Verstell sectionen - completely within the sensor housing and thus protected against environmental influences are arranged. If necessary, the adjustment can also be arranged completely within the housing, so that the housing first opened, preferably removed from a mounting support member of the housing, must be able to operate the actuator manually.
  • a precisely metered, ie adjustable, change of the detection range of the infrared motion sensor can be realized in that a common, preferably one-piece or multi-part diaphragm is provided for all sensor units, which preferably extends in the radial direction in the areas between each two circumferentially adjacent sensor units.
  • the diaphragm can be designed to be at least approximately cross-shaped in plan view, thus having four equally circumferentially spaced diaphragm sections (eg radial plate sections), each radially outward from an inner region protrude into an area between two adjacent sensor units. It is especially expedient if a thickened centric region of the at least approximately cross-shaped aperture has concavely rounded circumferential sections, each concavely rounded section being associated with a sensor unit and preferably the peripheral contour of a sensor unit being partially reformed.
  • the adjusting drive is designed such that the detection range decreases with increasing extension height of the diaphragm, measured from a rear side of the sensor housing.
  • the lens unit there are different possibilities.
  • a common lens unit it is preferable to provide a common lens unit, it also being possible for groups of sensor units or all sensor units to be assigned in each case one (separate) lens unit.
  • the diaphragm is preferably arranged in a region between the sensor unit (s) and the lens unit (s).
  • the at least one, preferably only one lens unit comprises a plurality of lens elements or Lens sections, wherein alternatively, for example, a Fresnel lens is used.
  • the panel engages in the thread of the threaded element either via an engagement member operatively connected to the panel, in particular fixed thereto, or alternatively, which is preferred, with an engagement portion integrally formed with the panel as an externally threaded spindle
  • the engaging part is preferably an internally threaded part or, in the case of the embodiment of the threaded element, an internally threaded element (spindle nut), preferably a male threaded part, in particular a spindle part or an externally threaded section or Spindle section is.
  • spindle nut internally threaded element
  • a male threaded part in particular a spindle part or an externally threaded section or Spindle section is.
  • the component can be realized as a common injection molded part.
  • the engagement part or the engagement portion is arranged rotationally fixed in order to avoid co-rotation in a manual operation of the threaded element.
  • the non-rotatable assembly is achieved by the provision of a linear guide for the engagement member or the engagement portion, which ensures that the engagement member or the engagement portion is adjusted parallel to this during a rotational movement of the threaded member.
  • a slot-like guide which in the case of the formation of the threaded element as a (threaded) spindle can be arranged radially outside the spindle, whereas it is preferred in the formation of the threaded element as a threaded spindle when the linear guide is arranged centrally within the spindle nut or above this.
  • an anti-rotation device for the panel can, if desired, be dispensed with a separate rotation for the engaging member or the engaging portion.
  • the linear movement path, along which the diaphragm is adjustable is not aligned with the threaded element longitudinal center axis in the axial direction, but if the adjustment axis or trajectory of the diaphragm rotates in a plane parallel to the longitudinal central axis of the threaded element, spaced therefrom.
  • the linear trajectory at least in sections parallel and arranged adjacent to the threaded member to minimize the height of the infrared motion sensor.
  • the spindle drive is designed to be self-locking. This can be realized, for example, by the choice of a suitable thread pitch and / or a suitable static coefficient of friction of the surface of the threaded element and / or of the engagement part or engagement section.
  • a plurality, preferably four, circumferentially spaced, preferably around a common center and equidistant from this sensor units are provided, it being particularly useful if the sensor units arranged in such a way are that they observe a total of over 360 ° extending detection area. It is particularly useful for this purpose if the sensor units, i. their sensor surfaces, with respect to the linear trajectory of the diaphragm are inclined, preferably at an angle from a range between about 20 ° and about 70 °, preferably between about 30 ° and about 60 °. It is particularly preferred if the sensor units are arranged uniformly spaced in the circumferential direction and have the sensor surfaces in the direction of linear movement path of the diaphragm.
  • the plurality of sensor units are arranged on a common carrier body which simultaneously has a guide function for the diaphragm, preferably in that a plurality of slots, in particular in the radial direction extending slots are provided in the carrier body, in which the diaphragm is guided axially.
  • a standard drive such as a slot drive or the like.
  • a turning tool in particular a screwdriver.
  • the panel and / or the threaded element and / or the housing is / are designed as a plastic part, particularly preferably as a plastic injection molded part.
  • a plastic part particularly preferably as a plastic injection molded part.
  • at least two functional parts, in particular the diaphragm and an engagement portion are made in one piece.
  • the diaphragm is preferably also a single component having a plurality of diaphragm sections, it also being possible to implement an embodiment with a diaphragm which can be assembled from individual parts.
  • Fig. 1 is an embodiment of an embodied according to the concept of the invention infrared motion sensor 1 (hereinafter motion sensor 1) with removed, shown in FIG. 7 by way of example housing cover 2 shown.
  • the housing cover 2 can be placed on the in Fig. 1 shown housing lower part 3 of the sensor housing 4 clipped, ie set by locking.
  • a total of four sensor units 7 In the interior of the sensor housing 4 is a preferably designed as a printed circuit board base plate 5, on which a carrier body 6 is arranged for in the embodiment shown a total of four sensor units 7.
  • the sensor units 7 are aligned at an angle to the base plate 5, which run parallel to a rear mounting plane of the sensor housing.
  • the sensor surfaces 8 of the sensor units 7 point inwardly to an axis, not shown, perpendicular to the base plate 5 axis.
  • the sensor units 7 are distributed uniformly in the circumferential direction, in such a way that a total detection range of 360 ° results, based on the parallel to the base plate 5 extending mounting plane.
  • the held in the support body 6 sensor units 7 is associated with a cross-shaped in plan view aperture 9, along a linear, vertical to the base plate extension 5 extending trajectory linearly adjustable, ie is mobile.
  • the diaphragm 9 is associated with a spindle drive 10 as an actuating device 11, wherein the spindle drive 10 comprises a threaded element 12 formed as a spindle in the embodiment shown, which is mounted rotatably and otherwise stationary.
  • the threaded element 12 is manually operable from the rear side of the housing.
  • the housing base must be removed from a wall or ceiling or, if provided, by a mounted on the wall or ceiling mounting bracket.
  • the engagement section 14 with a total of four Radialfiort arrangementsn 15, one of which is connected to the actual panel 9, guided in radial slots guides 16, here linear guides, out, in addition to the linear guide function have the function of holding the engagement portion 14 rotationally fixed.
  • the trained as a radial slots guides 16 are frontally provided in a sleeve body 17, and define with its axially lower end a lowermost linear adjustment position for the aperture 9.
  • the sleeve body 17 surrounds the trained as a spindle threaded member 12 with radial clearance.
  • the aperture 5 is, as explained, formed in the top view substantially cross-shaped and has a thickened central region 19, whose Circumferential wall in the sensor units 7 associated sections 20 is concavely curved to accommodate the cylindrical contour of the sensor units 7, more precisely, the front-side, circular peripheral edge.
  • the sensor units 7, more precisely the active sensor surfaces 8, are inclined at an angle of about 45 ° to the linear trajectory coinciding with the longitudinal central axis of the carrier body 6 at an angle in the embodiment shown.
  • the diaphragm 9 comprises in addition to the thickened central region 19 a total of four radial plate sections 21 (FIG. Radialfortodia) extending from the central region 19 each in the radial direction to the outside.
  • the radial plate sections 21 are arranged in a cross shape and each extend in a region between two circumferentially adjacent sensor units 7, so that in each case two juxtaposed sensor units 7 are spaced from each other via a radial plate section 21.
  • the radial plate sections 21 each extend in a plane which is spanned by the linear trajectory of the diaphragm 9 and an imaginary radius line extending radially with respect to the linear trajectory.
  • the radial plate sections 21 not only have the task of influencing the detection range of the sensor units 7, but also serve to guide the diaphragm 9 during its linear adjustment movement.
  • the radial plate sections 21 are each received in a radial slot 22 in serving as a guide body support body 6.
  • the radial plate sections 21 project beyond the carrier body 6 both in the axial and in the radial direction.
  • the running on the threaded member radial plate portion 21 merges into a radial extension 15, which serves to guide the engagement portion 14.
  • a total of four such radial sections 15 are provided, which are arranged in a cross shape and cooperate with linear guides 16 in the sleeve body 17.
  • the shutter 9 is in its lowermost adjustment position, which is defined by the lower axial ends of the radial slots 22 and in the embodiment shown by the lower axial ends of the guides 16 (slots) in the sleeve body 17.
  • the inwardly directed sensor units 7 have the largest detection range of 18m x 18m in the embodiment shown (in tangential direction of travel) at a mounting height of about 2.50m.
  • Fig. 3 is the adjusting device 11 according to Fig. 2 shown in a maximum upwardly extended position. It can be seen that the field of view of the sensor units 7 is significantly limited by the linearly extended diaphragm 9.
  • Fig. 4 shows a housing cover 2 of the sensor housing 4, which is usable with the embodiment described above.
  • the housing cover 2 has a latching mechanism 31 for latching with the housing lower part 3 (see. Fig. 1 ) on.
  • the housing cover 2 comprises a peripheral frame section 32 with operating elements 33, the frame section 32 enclosing an infrared-transparent lens unit 34.
  • the lens unit 34 comprises a plurality of individual lens sections or lens segments which are formed and arranged such that the infrared radiation is focused on the sensor units.
  • each group of sensor units or each sensor unit may be associated with a separate lens unit, preferably comprising a plurality of lens segments.
  • Fig. 5 the lower housing part 3 is shown in a view from behind.
  • the rear end face of the threaded element 12 which has a drive 35 designed as a slot, in order to be able to be actuated by means of an actuating tool, here a screwdriver.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Claims (13)

  1. Détecteur de mouvement à infrarouge comprenant des unités de détection (7) logées dans un boîtier de détecteur (4) et interagissant optiquement avec une unité à lentille (34) fixe, sensibles aux infrarouges et configurées pour délivrer un signal électronique de détection de mouvement, fixes, espacées dans le sens d'un pourtour, et comprenant des moyens pour modifier et/ou régler une zone de détection, notamment une distance de détection effective maximale et/ou minimale, qui, pour modifier et/ou régler la zone de détection, présentent un dispositif de réglage (11) pouvant être actionné manuellement et logé au moins partiellement dans le boîtier pour déplacer un obturateur (9) par rapport aux unités de détection (7), le dispositif de réglage (11) incluant un élément à filet (12) pouvant être actionné manuellement, réalisé sous la forme d'une broche ou d'un écrou de broche, qui, en réaction à un actionnement en rotation, provoque un changement de place de l'obturateur (9) le long d'une trajectoire de déplacement linéaire, et l'obturateur (9) s'étendant dans une zone entre deux unités de détection (7) respectivement voisines dans le sens du pourtour.
  2. Détecteur de mouvement selon la revendication 1, caractérisé en ce que l'obturateur (9, 19) vient en prise dans l'élément à filet (12) de préférence par le biais d'une pièce d'engagement, de préférence réalisée sous la forme d'une pièce taraudée ou d'une pièce filetée, ou d'une section d'engagement (14) réalisée d'une seule pièce avec l'obturateur (9), exécutée de préférence sous la forme d'une section taraudée ou d'une section filetée.
  3. Détecteur de mouvement selon la revendication 2, caractérisé en ce que la pièce d'engagement ou la section d'engagement (14) est disposée en rotation solidaire et de préférence guidée dans un guide qui s'étend parallèlement à l'axe central longitudinal de l'élément à filet, notamment à la manière d'une fente.
  4. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que la trajectoire de déplacement linéaire le long de laquelle peut être déplacé l'obturateur (9) est disposée parallèlement et avec un écart par rapport à un axe central longitudinal de l'élément à filet.
  5. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que l'élément à filet (12) est réalisé autobloquant.
  6. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que les plusieurs, de préférence quatre, unités de détection (7) espacées dans le sens du pourtour sont prévues pour couvrir une zone de détection qui s'étend au total sur 360°.
  7. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que les unités de détection (7) sont inclinées par rapport à la trajectoire de déplacement linéaire de l'obturateur (9), de préférence suivant un angle dans une plage entre 20° et 70°, préférablement entre 30° et 60°.
  8. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que l'obturateur (9) s'étend dans la zone entre deux unités de détection (7) respectivement voisines dans le sens du pourtour en partant d'un centre commun.
  9. Détecteur de mouvement selon la revendication 8, caractérisé en ce que l'obturateur (9), vu de dessus, présente un profil en forme de croix, notamment avec une zone centrale épaissie.
  10. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que les unités de détection (7) sont disposées sur un corps porteur dans lequel l'obturateur (9) est guidé de manière linéaire en plusieurs points espacés dans le sens du pourtour, de préférence dans des fentes radiales (22).
  11. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que l'élément à filet (12), sur un côté frontal accessible depuis l'extérieur du boîtier, est muni d'une empreinte d'entraînement (35), notamment d'une empreinte d'entraînement à fente, d'une empreinte d'entraînement cruciforme, d'une empreinte d'entraînement à six pans creux ou d'une empreinte d'entraînement Torx, destinée à interagir avec un outil rotatif pour un actionnement manuel.
  12. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que l'obturateur (9) et/ou l'élément à filet (12) et/ou le boîtier est/sont réalisé(s) sous la forme d'une pièce en matière plastique, notamment d'une pièce moulée par injection de matière plastique.
  13. Détecteur de mouvement selon l'une des revendications précédentes, caractérisé en ce que le boîtier de détecteur (4) présente des moyens de montage mural ou au plafond et/ou de montage sur un élément porteur de montage et la trajectoire de déplacement linéaire le long de laquelle peut être déplacé l'obturateur (9) s'étend perpendiculairement à l'étendue de la surface d'un côté arrière du boîtier de détecteur (4).
EP11159468A 2010-04-08 2011-03-23 Capteur de mouvements à infrarouges Active EP2375389B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12157767.0A EP2463835B1 (fr) 2010-04-08 2011-03-23 Senseur de movement à rayons infrarouges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010014282 DE102010014282A1 (de) 2010-04-08 2010-04-08 Infrarot-Bewegungssensor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP12157767.0 Division-Into 2012-03-01

Publications (2)

Publication Number Publication Date
EP2375389A1 EP2375389A1 (fr) 2011-10-12
EP2375389B1 true EP2375389B1 (fr) 2013-02-13

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EP12157767.0A Active EP2463835B1 (fr) 2010-04-08 2011-03-23 Senseur de movement à rayons infrarouges
EP11159468A Active EP2375389B1 (fr) 2010-04-08 2011-03-23 Capteur de mouvements à infrarouges

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DE (1) DE102010014282A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2664135B1 (es) * 2016-10-18 2018-12-20 Electronic Intelligent Controls, S.L. Dispositivo detector de movimiento
DE202016106865U1 (de) * 2016-12-09 2018-03-12 Tridonic Gmbh & Co Kg Sensor-Anordnung zum Erkennen einer Bewegung und/oder einer Anwesenheit einer Person
CN110500526A (zh) * 2018-05-17 2019-11-26 广州市番禺奥莱照明电器有限公司 一种可覆盖270度的红外感应灯具
DE102019131487A1 (de) * 2019-11-21 2021-05-27 Dietmar Friedrich Brück Meldereinheit, Meldersystem sowie Verfahren zum Betrieb des Meldersystems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1887535A1 (fr) * 2006-08-08 2008-02-13 Robert Bosch GmbH Masque de zone du haut vers le bas pour la détection d'intrusions

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Publication number Priority date Publication date Assignee Title
JPS56130038A (en) * 1980-03-15 1981-10-12 Omron Tateisi Electronics Co Photoelectric switch
DE8705013U1 (de) * 1987-04-04 1987-05-27 Reglomat AG, St. Gallen Vorrichtung zum mechanischen Einstellen des Ansprechbereiches eines Passiv-Infrarot-Bewegungsmelders
CH689926A5 (de) * 1994-12-20 2000-01-31 Reglomat Ag Bewegungsmelder.
JP3695096B2 (ja) 1997-10-20 2005-09-14 アツミ電氣株式会社 熱線センサ
US6323488B1 (en) * 1999-06-04 2001-11-27 Desa International, Inc. Adjustable motion sensing apparatus
DE102006018732A1 (de) 2006-04-20 2007-10-25 Steinel Gmbh Infrarot-Bewegungssensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1887535A1 (fr) * 2006-08-08 2008-02-13 Robert Bosch GmbH Masque de zone du haut vers le bas pour la détection d'intrusions

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EP2463835B1 (fr) 2013-07-24
EP2375389A1 (fr) 2011-10-12
EP2463835A1 (fr) 2012-06-13
DE102010014282A1 (de) 2011-10-13

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