EP2375389B1 - Infrared motion sensor - Google Patents
Infrared motion sensor Download PDFInfo
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- 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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- movement
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- 238000001514 detection method Methods 0.000 claims description 34
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- 230000005855 radiation Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
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- 230000035945 sensitivity Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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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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Description
Die vorliegende Erfindung betrifft einen Infrarot-Bewegungssensor gemäß Anspruch 1. Eine derartige Vorrichtung ist aus dem Stand der Technik allgemein bekannt und wird beispielsweise zur Steuerung von Außenleuchten od.dgl. Lichtanlagen typischerweise an Hauswänden, an Decken, im Dachbereich oder an Türrahmen derart befestigt, dass im Erfassungsbereich des Bewegungssensors auftretende Bewegungen von Personen eine Lichtaktivierung auslösen können.The present invention relates to an infrared motion sensor according to claim 1. Such 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.
Im Hinblick auf eine optimale Anpassung einer solchen Vorrichtung, insbesondere das Einrichten des Erfassungsbereichs relativ zu den räumlichen Verhältnissen der Montageorte sowie das Vermeiden von Fehlaktivierungen durch unerwünscht große Erfassungsreichweiten weisen gattungsgemäß bekannte Vorrichtungen Einstellmittel für den Erfassungsbereich auf.With regard to an optimal adaptation of such a device, in particular the setting up of the detection range relative to the spatial conditions of the mounting locations and the avoidance of false activations due to undesirably large detection ranges, generically known devices have setting means for the detection range.
Hier sind zahlreiche Varianten bekannt: zum einen ist bekannt, ein Sensorgehäuse dreh- bzw. verschwenkbar auszugestalten, so dass die Linseneinheit geeignet auf den gewünschten Zielbereich gerichtet werden kann; ein maximaler Erfassungsbereich kann so etwa durch ein Abwärtsneigen des Sensorgehäuses bestimmt und begrenzt werden. Eine derartige Lagerung ist jedoch üblicherweise in ihrem wirksamen Einstellbereich begrenzt; darüber hinaus gestaltet sich eine solche Realisierung konstruktiv und mechanisch aufwändig.Numerous variants are known here: on the one hand, it is known to design a sensor housing such that it can be rotated or swiveled, so that the lens unit can be suitably directed to the desired target area; a maximum detection range can thus be determined and limited by tilting down the sensor housing. However, such storage is usually limited in its effective adjustment range; In addition, such a realization is structurally and mechanically complex.
Ergänzend oder alternativ weisen gattungsgemäß bekannte Bewegungssensoren Abschattungselemente (Blenden) in Form abnehmbar aufsteckbaren (und für Infrarotstrahlung undurchlässigen) Kunststoffplättchen auf, mit welchen die Linsenoberfläche und mithin ein wirksamer Erfassungsbereich der Sensoreinheit begrenzt werden können. Ebenso ist es bekannt, solche Blenden verschwenkbar außen an einem Gehäuse anzuordnen. Eine derartige Vorgehensweise ist jedoch mühsam und wenig praktikabel in der Handhabung, insbesondere für fachlich unversierte Benutzer. Eine weitere Variante zur Einstellung eines wirksamen Erfassungsbereichs besteht in der elektronischen Verstellung, basierend auf der Empfindlichkeit bzw. Signalstärke des von der Sensoreinheit ausgegebenen Signals. Allerdings sind bei üblichen Sensoranordnungen diese Signale über einen größeren Abstandsbereich konstant, so dass eine einfache produzierbare elektronische Verstellung dadurch schwierig wird; hinzu kommt der Umstand, dass, je nach Objektgröße und Geschwindigkeit eines Erfassungsobjektes die erzeugten elektrischen Signale sich erheblich unterscheiden; ein großer Körper erzeugt in einer großen Entfernung ein ähnlich starkes Signal wie ein kleiner Körper in geringer Entfernung.Additionally or alternatively, 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. However, in conventional sensor arrangements, these signals are constant over a larger distance range, so that a simple producible electronic adjustment is difficult; Added to this is the fact that, depending on the object size and speed of a detection object, the generated electrical signals differ significantly; a large body produces a signal as strong as a small body at a short distance at a great distance.
Die
Die
Aus der
In der
In der
In der
Bei einigen vorgenannten Infrarot-Bewegungssensoren ist ein komplexer, nur kostenintensiv realisierbarer Aufbau vonnöten. Bei anderen bekannten Infrarotsensoren, wie bei der Variante mit aufsteckbaren Blenden ist die Handhabbarkeit verbesserungsbedürftig, insbesondere im Hinblick auf die Gewährleistung einer exakten bzw kleinstufigen Einstellmöglichkeit.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 kleinstufigen adjustment.
Aus der
Ausgehend von dem vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen gattungsgemäßen Infrarot-Bewegungsmelder im Hinblick auf eine einfache, exakte, reproduzierbare und komfortabel handhabbare Reichweiteneinstellung zu verbessern.Based on the aforementioned prior art, the present invention seeks to improve a generic infrared motion detector with respect to a simple, accurate, reproducible and easy to handle range setting.
Diese Aufgabe wird durch den Infrarot-Bewegungssensor mit den Merkmalen des Hauptanspruchs gelöst; vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. In den Rahmen der Erfindung fallen sämtliche Kombinationen von zumindest zwei von in der Beschreibung, den Ansprüchen und/oder den Figuren angegebenen Merkmalen.This object is achieved by the infrared motion sensor having the features of the main claim; advantageous developments of the invention are specified in the subclaims. All combinations of at least two features specified in the description, the claims and / or the figures fall within the scope of the invention.
Der Erfindung liegt der Gedanke zugrunde, die Stelleinrichtung zur Veränderung und/oder Einstellung des Erfassungsbereichs der Sensoreinheiten derart auszubilden, dass die Blende (Abschattungselement), die für Infrarot-Strahlung bevorzugt undurchlässig und weiter bevorzugt aus Kunststoff ausgebildet ist auf einer linearen Bewegungsbahn verstellbar ist, um auf diese Weise den wirksamen Erfassungsbereich der Sensoreinheit eingrenzen zu können. Wesentlich dabei ist, dass die lineare Verstellbewegung der Blende aus einer Rotationsbewegung eines manuell verstellbaren Gewindeelementes, bevorzugt einer Spindel, alternativ einer Spindelmutter resultiert. Anders ausgedrückt ist die Blende zur Einstellung und/oder Veränderung des Erfassungsbereichs der Sensoreinheiten derart mit einer manuell betätigbaren Spindel oder einer manuell betätigbaren Spindelmutter wirkverbunden, dass aus der manuellen, exakt dosierbaren Verdrehbewegung der Spindel bzw. der Spindelmutter eine lineare Ortsveränderung der Blende relativ zu der Sensoreinheit und vorzugsweise auch relativ zu einer, bevorzugt von den Sensoreinheiten beabstandeten Linseneinheit resultiert. Ein nach dem Konzept der Erfindung ausgebildeter Infrarot-Bewegungssensor realisiert damit in Abkehr von der elektronischen, empfindlichkeitsbasierten Entfernungseinstellung und der bekannten Verschwenkung des gesamten Sensorgehäuses sowie dem Verstellen der Sensoreinheiten relativ zu dem Gehäuse auf überrasend konstruktiv einfach realisierbare Art und Weise eine intuitiv und mit guter Genauigkeit realisierbare Reichweiteneinstellung durch das Bereitstellen eines, beispielsweise mittels eines Schraubendrehers batätigbaren Spindeltriebs, der die nutzerseitige, drehende Einstellbewegung in einer Linearbewegung der Blende relativ zu der, bevorzugt feststehenden und damit robust und kostengünstig gelagerten, Sensoreinheit ermöglicht. Durch die erfindungsgemäße Maßnahme lässt sich überraschend einfach und wirksam der Erfassungsbereich erweitern oder begrenzen, ohne dass es mühsam aufzusteckender Blendenelemente bedarf, und ohne dass ein letztlich unzuverlässiges elektronisches Sensorsignal zur Reichweiteneinstellung bzw. Begrenzung ausgewertet werden muss, und ohne dass die gesamten Sensoreinheiten und/oder die Linseneinheit verstellbar gelagert werden muss. Darüber hinaus kann die Stelleinrichtung - ggf. bis auf einem zu Verstellzwecken zugänglichen Bereich - vollständig innerhalb des Sensorgehäuses und damit geschützt vor Umwelteinflüssen angeordnet werden. Bei Bedarf kann der Verstellantrieb auch vollständig innerhalb des Gehäuses angeordnet sein, so dass das Gehäuse zunächst geöffnet, bevorzugt von einem Montageträgerteil des Gehäuses abgenommen, werden muss um die Stelleinrichtung manuell betätigen zu können. Ein weiterer wesentlicher Vorteil der erfindungsgemäßen Verstellmöglichkeit ist zudem darin zu sehen, dass das Übersetzungsverhältnis zwischen dem manuell eingestellten Drehwinkel des Gewindeelements und dem daraus resultierenden Axialhub der Blende wählbar bzw- abstimmbar ist, vorzugsweise derart, dass eine Drehbewegung über einen großen Verdrehwinkel nur eine kleine lineare Verstellbewegung der Blende zur Folge hat, um die Blendeposition und damit die Reichweite bzw. den Empfangsbereich exakt einstellen zu können.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. In other words, 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. In addition, the adjusting device - possibly up to a range accessible for Verstellzwecken - 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. Another significant advantage of Verstellmöglichkeit invention is also to be seen in the fact that the transmission ratio between the manually set rotation angle of the threaded element and the resulting Axialhub the shutter is selectable or tunable, preferably such that a rotational movement over a large angle of rotation only a small linear Adjusting movement of the diaphragm has the consequence to adjust the glare position and thus the range or the reception area exactly.
Bei einer Ausführungsvariante mit mehreren, vorzugsweise gleichmäßig, in Umfangsrichtung beabstandeten Sensoreinheiten kann eine exakt dosierbare, d.h. einstellbare Veränderung des Erfassungsbereichs des Infrarot-Bewegungssensors dadurch realisiert werden, dass eine gemeinsame, vorzugsweise einteilige oder aus mehreren Teilen zusammengesetzte Blende für sämtliche Sensoreinheiten vorgesehen ist, die sich bevorzugt in radialer Richtung in die Bereiche zwischen jeweils zwei in Umfangsrichtung nebeneinander angeordneten Sensoreinheiten erstreckt. Im Falle des Vorsehens von insgesamt vier gleichmäßig in Umfangsrichtung verteilt angeordneten Sensoreinheiten kann die Blende hierzu in einer Draufsicht zumindest näherungsweise kreuzförmig ausgestaltet sein, weist also vier gleichmäßig in Umfangsrichtung beabstandete Blendenabschnitte (z.B. Radialplattenabschnitte) auf, die jeweils ausgehend von einem inneren Bereich nach radial außen in einen Bereich zwischen zwei nebeneinander angeordneten Sensoreinheiten ragen. Besonders zweckmäßig ist dabei, wenn ein verdickter zentrischer Bereich der zumindest näherungsweise kreuzförmigen Blende konkav gerundete Umfangsabschnitte aufweist, wobei jeder konkav gerundete Abschnitt einer Sensoreinheit zugeordnet ist und bevorzugt die Umfangskontur einer Sensoreinheit abschnittsweise nachformt.In an embodiment variant with a plurality of, preferably uniform, circumferentially spaced sensor units, 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. In the case of the provision of a total of four sensor units distributed uniformly in the circumferential direction, 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.
Während es einerseits besonders bevorzugt und günstig ist, die erfindungsgemäße Ortsveränderung kontinuierlich und stufenlos durchzuführen, ist es alternativ möglich und von der Erfindung umfasst, auch eine geeignet vorbestimmte Stufung, Rasterung od.dgl. Segmentierung der Verschiebung entlang des linearen Einstellweges der Blende vorzunehmen. Bevorzugt ist der Verstellantrieb derart ausgelegt, dass der Erfassungsbereich mit zunehmender Ausfahrhöhe der Blende, gemessen von einer Rückseite des Sensorgehäuses abnimmt.While, on the one hand, it is particularly preferred and advantageous to carry out the change of location according to the invention continuously and steplessly, it is alternatively possible and encompassed by the invention to include a suitably predetermined graduation, rastering or the like. Segmentation of the displacement along the linear adjustment path of the diaphragm make. Preferably, 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.
Hinsichtlich der konkreten Ausgestaltung der Linseneinheit gibt es unterschiedliche Möglichkeiten. Bevorzugt ist es im Falle des Vorsehens mehrerer Sensoreinheiten eine gemeinsame Linseneinheit vorzusehen, wobei alternativ auch Gruppen von Sensoreinheiten oder sämtlichen Sensoreinheiten jeweils eine (eigene) Linseneinheit zugeordnet werden kann. Bevorzugt ist die Blende in einem Bereich zwischen der/den Sensoreinheit(en) und der/den Linseneinheit(en) angeordnet. Bevorzugt umfasst die mindestens eine, bevorzugt ausschließlich eine Linseneinheit, mehrere Linsenelemente bzw. Linsenabschnitte, wobei alternativ beispielsweise auch eine Fresnellinse einsetzbar ist.With regard to the specific design of the lens unit, there are different possibilities. In the case of providing a plurality of sensor units, 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). Preferably, 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.
Besonders bevorzugt ist es, wenn die Blende entweder über ein mit der Blende wirkverbundenes, insbesondere an dieser festgelegtes Eingriffsteil, oder alternativ, was bevorzugt ist, mit einem einteilig mit der Blende ausgebildeten Eingriffsabschnitt in das Gewinde des Gewindeelementes eingreift, Im Fall der Ausbildung des Gewindeelementes als Spindel mit Außengewinde handelt es sich bei dem Eingriffsteil bevorzugt um ein Innengewindeteil bzw. bei dem Eingriffsabschnitt um einen Inngewindeabschnitt, wohingegen es sich im Falle der Ausbildung des Gewindeelementes als Innengewindeelement (Spindelmutter) bevorzugt um ein Außengewindeteil, insbesondere ein Spindelteil bzw. einen Außengewindeabschnitt bzw. Spindelabschnitt handelt. Gerade die einteilige Ausbildung von Blende und Eingriffsabschnitt ist besonders bevorzugt, da in diesem Fall das Bauteil als gemeinsames Spritzgussteil realisierbar ist.In the case of the embodiment of the threaded element, it is particularly preferred if 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. Especially the one-piece design of aperture and engagement portion is particularly preferred, since in this case the component can be realized as a common injection molded part.
Besonders zweckmäßig ist es, wenn das Eingriffsteil oder der Eingriffsabschnitt drehfest angeordnet ist, um ein Mitdrehen bei einer manuellen Betätigung des Gewindeelementes zu vermeiden. Bevorzugt ist die drehfeste Anordnung durch das Vorsehen einer Linearführung für das Eingriffsteil bzw. den Eingriffsabschnitt gelöst, die dafür Sorge trägt, dass das Eingriffsteil oder der Eingriffsabschnitt bei einer Verdrehbewegung des Gewindeelementes parallel zu diesem verstellt wird. Ganz besonders bevorzugt ist, wenn es sich um eine schlitzartige Führung handelt, die im Falle der Ausbildung des Gewindeelementes als (Gewinde-) Spindel radial außerhalb der Spindel angeordnet sein kann, wohingegen es bei der Ausbildung des Gewindeelementes als Gewindespindel bevorzugt ist, wenn die Linearführung zentrisch innerhalb der Spindelmutter oder oberhalb dieser angeordnet ist. Im Falle des Vorsehens einer Verdrehsicherung für die Blende kann, wenn gewünscht, auf eine separate Verdrehsicherung für das Eingriffsteil bzw. den Eingriffsabschnitt verzichtet werden.It is particularly expedient if 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. Preferably, 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. It is particularly preferred if it is 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. In the case of providing an anti-rotation device for the panel can, if desired, be dispensed with a separate rotation for the engaging member or the engaging portion.
Besonders bevorzugt ist es, wenn die lineare Bewegungsbahn, entlang derer die Blende verstellbar ist, nicht mit der Gewindeelementlängsmittelachse in axialer Richtung fluchtet, sondern wenn die Verstellachse bzw. Bewegungsbahn der Blende in einer Parallelebene zur Längsmittelachse des Gewindeelementes, beabstandet von diesem verrläuft. Bevorzugt ist die lineare Bewegungsbahn, zumindest abschnittsweise parallel und neben dem Gewindeelement angeordnet, um die Bauhöhe des Infrarot-Bewegungssensors zu minimieren.It is particularly preferred if 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. Preferably, the linear trajectory, at least in sections parallel and arranged adjacent to the threaded member to minimize the height of the infrared motion sensor.
Um ein selbsttätiges Verstellen des Erfassungsbereichs, beispielsweise durch Erschütterungen zu verhindern, ist es bevorzugt, wenn der Spindeltrieb selbsthemmend ausgeführt ist. Dies kann beispielsweise durch die Wahl einer geeigneten Gewindesteigung und/oder einem geeigneten Haftreibungskoeffizienten der Oberfläche des Gewindeelementes und/oder des Eingriffsteils bzw. Eingriffabschnittes realisiert werden.In order to prevent an automatic adjustment of the detection range, for example by vibrations, it is preferred if 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.
Um einen möglichst großen Erfassungsbereich zu realisieren, ist es bevorzugt, wenn mehrere, vorzugsweise vier, in Umfangsrichtung beabstandete, bevorzugt um ein gemeinsames Zentrum herum und gleich beabstandet von diesem angeordnete, Sensoreinheiten vorgesehen sind, wobei es besonders zweckmäßig ist, wenn die Sensoreinheiten derart angeordnet sind, dass diese insgesamt einen sich über 360° erstreckenden Erfassungsbereich beobachten. Besonders zweckmäßig ist es hierzu, wenn die Sensoreinheiten, d.h. ihre Sensorflächen, in Bezug auf die lineare Bewegungsbahn der Blende geneigt sind, vorzugsweise unter einem Winkel aus einem Bereich zwischen etwa 20° und etwa 70°, bevorzugt zwischen etwa 30° und etwa 60°. Besonders bevorzugt ist es dabei, wenn die Sensoreinheiten gleichmäßig in Umfangsrichtung beabstandet angeordnet sind und die Sensorflächen in Richtung linearer Bewegungsbahn der Blende weisen.In order to realize the largest possible detection range, it is preferred if 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.
Besonders bevorzugt ist eine Ausführungsvariante des Bewegungssensors, bei der die mehreren Sensoreinheiten auf einem gemeinsamen Trägerkörper angeordnet sind, der gleichzeitig eine Führungsfunktion für die Blende aufweist, vorzugsweise indem im Trägerkörper mehrere Schlitze, insbesondere in radialer Richtung verlaufende Schlitze vorgesehen sind, in denen die Blende axial geführt ist.Particularly preferred is an embodiment variant of the motion sensor in which 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.
Zum Verstellen manuellen Verstellen ist des Gewindeelementes ist es bevorzugt, wenn dieses insbesondere an einer von außerhalb des Sensorgehäuses zugänglichen Stirnseite einen Normantrieb, beispielsweise einen Schlitzantrieb od.dgl. zum Zusammenwirken mit einem Drehwerkzeug, insbesondere einem Schraubendreher aufweist.To adjust manual adjustment of the threaded element, it is preferred if this particular on a side accessible from outside the sensor housing end face a standard drive, such as a slot drive or the like. for cooperation with a turning tool, in particular a screwdriver.
Um die Herstellbarkeit bei minimierten Kosten weiter zu vereinfachen ist es bevorzugt, wenn die Blende und/oder das Gewindeelement und/oder das Gehäuse als Kunststoffteil, besonders bevorzugt als Kunststoffspritzgussteil ausgeführt ist/sind. Bevorzugt sind mindestens zwei Funktionsteile, insbesondre die Blende und ein Eingriffsabschnitt einteilig ausgeführt. Bevorzugt handelt es sich bei der Blende auch um ein einziges, mehrere Blendabschnitte aufweisendes Bauteil, wobei auch eine Ausführungsform mit aus Einzelteilen montierbarer Blende realisierbar ist.In order to further simplify manufacturability with minimized costs, it is preferred if 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. Preferably, 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.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen.Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings.
Diese zeigen in:
- Fig. 1:
- eine Perspektivansicht eines Infrarot-Bewegungssensors von schräg vorne bei abgenommenem (nicht dargestellten) Linsendeckel,
- Fig. 2:
- eine vergrößerte Darstellung eines Details aus
Fig. 1 , welches eine Anordnung mehrerer Sensorelemente mit zugehöriger, linear verstellbarer Blende und Stellantrieb zum Verstellen der Blende zeigt, wobei die Blende in der maximal eingefahrenen Position gezeigt ist, in der der Bewegungssensor den größten Erfassungsbereich hat, - Fig. 3:
- das Detail aus
Fig. 2 mit maximal ausgefahrener Blende, - Fig. 4:
- einen aufklipsbaren Gehäusedeckel, der mit dem Infrarot-Bewegungssensor verwendbar ist.
- Fig. 5:
- eine perspektivische Rückansicht des Infrarotbewegungssensors.
- Fig. 1:
- a perspective view of an infrared motion sensor obliquely from the front with removed lens cap (not shown),
- Fig. 2:
- an enlarged view of a detail
Fig. 1 showing an arrangement of a plurality of sensor elements with associated, linearly adjustable diaphragm and actuator for adjusting the diaphragm, wherein the diaphragm is shown in the maximum retracted position, in which the motion sensor has the largest detection range, - 3:
- the detail
Fig. 2 with maximum extended aperture, - 4:
- a clip-on housing cover usable with the infrared motion sensor.
- Fig. 5:
- a rear perspective view of the infrared motion sensor.
In den Figuren sind gleiche Elemente und Elemente mit der gleichen Funktion mit den gleichen Bezugszeichen gekennzeichnet.In the figures, like elements and elements having the same function are denoted by the same reference numerals.
In
Im Innern des Sensorgehäuses 4 befindet sich eine bevorzugt als Leiterplatte ausgebildete Grundplatte 5, auf welcher ein Trägerkörper 6 für in dem gezeigten Ausführungsbeispiel insgesamt vier Sensoreinheiten 7 angeordnet ist. Die Sensoreinheiten 7 sind winklig zur Grundplatte 5 ausgerichtet, welche parallel zu einer rückwärtigen Montagebene des Sensorgehäuses verlaufen. Die Sensorflächen 8 der Sensoreinheiten 7 weisen dabei nach innen auf eine nicht dargestellte, senkrecht auf der Grundplatte 5 stehende Achse. Die Sensoreinheiten 7 sind gleichmäßig in Umfangsrichtung verteilt angeordnet, und zwar derart, dass sich ein Gesamterfassungsbereich von 360° ergibt, bezogen auf die sich parallel zur Grundplatte 5 erstreckende Montageebene.In the interior of the sensor housing 4 is a preferably designed as a printed circuit
Den im Trägerkörper 6 gehaltenen Sensoreinheiten 7 ist eine in der Draufsicht kreuzförmige Blende 9 zugeordnet, die entlang einer linearen, sich senkrecht zur Grundplattenerstreckung 5 verlaufenden Bewegungsbahn linear verstellbar, d.h. ortsveränderlich ist. Hierzu ist der Blende 9 ein Spindeltrieb 10 als Stelleinrichtung 11 zugeordnet, wobei der Spindeltrieb 10 ein in dem gezeigten Ausführungsbeispiel als Spindel ausgebildetes Gewindeelement 12 umfasst, welches drehbar und ansonsten ortsfest gelagert ist. Das Gewindeelement 12 ist von der Gehäuserückseite her manuell betätigbar. Hinzu muss das Gehäuseunterteil von einer Wand oder Decke abgenommen werden oder, falls vorgesehen, von einem an der Wand oder Decke montierten (montierbaren) Montageträger.The held in the support body 6
Mit dem hier als Außengewinde ausgebildeten Gewinde 13 des Gewindeelementes ist ein als Innengewindeabschnitt ausgebildeter Eingriffsabschnitt 14 in Eingriff, der einteilig mit der Blende 9 ausgebildet ist. Der Eingriffsabschnitt 14 ist mit insgesamt vier Radialfiortsätzen 15, von denen einer an die eigentliche Blende 9 angebunden ist, in als Radialschlitzen ausgebildeten Führungen 16, hier Linearführungen, geführt, die neben der Linearführungsfunktion die Funktion haben, den Eingriffsabschnitt 14 drehfest zu halten. Die als Radialschlitze ausgebildeten Führungen 16 sind stirnseitig in einem Hülsenkörper 17 vorgesehen, und definieren mit ihrem axial unteren Ende eine unterste lineare Verstellposition für die Blende 9. Der Hülsenkörper 17 umgibt dabei das als Spindel ausgebildete Gewindeelement 12 mit Radialabstand.With the here formed as an external thread thread 13 of the threaded element designed as an internal threaded
Im Folgenden wird anhand der
Die Radialplattenabschnitte 21 haben nicht nur die Aufgabe den Erfassungsbereich der Sensoreinheiten 7 zu beeinflussen, sondern dienen gleichzeitig zur Führung der Blende 9 bei ihrer linearen Verstellbewegung. Hierzu sind die Radialplattenabschnitte 21 jeweils in einem Radialschlitz 22 im als Führungskörper dienenden Trägerkörper 6 aufgenommen. In dem gezeigten Ausführungsbeispiel überragen die Radialplattenabschnitte 21 den Trägerkörper 6 sowohl in axialer als auch in radialer Richtung. Der auf das Gewindeelement zu verlaufende Radialplattenabschnitt 21 geht über in einen Radialfortsatz 15, der zur Führung des Eingriffsabschnittes 14 dient. Insgesamt sind vier derartige Radialabschnitte 15 vorgesehen, die kreuzförmig angeordnet sind und mit linearen Führungen 16 im Hülsenkörper 17 zusammenwirken.The
Dadurch, dass der Eingriffsabschnitt mit seinem Innengewinde in das Aussengwinde (Gewinde 13) des Gewindeelementes 12 eingreift und aufgrund der linearen Führung der Blende 9 resultiert aus einer manuellen, nutzerseitigen Verdrehbewegung des Gewindeelementes 12 eine lineare Verstellbewegung der Blende 19 und zwar senkrecht zur der in
In
In
In
- 11
- Infrarot-BewegungssensorInfrared motion sensor
- 22
- Gehäusedeckelhousing cover
- 33
- GehäuseunterteilHousing bottom
- 44
- Sensorgehäusesensor housing
- 55
- Grundplattebaseplate
- 66
- Trägerkörpersupport body
- 77
- Sensoreinheitsensor unit
- 88th
- Sensorflächesensor surface
- 99
- Blendecover
- 1010
- Spindeltriebspindle drive
- 1111
- Stelleinrichtungsetting device
- 1212
- Gewindeelementthreaded element
- 1313
- Gewindethread
- 1414
- Eingriffsabschnittengaging portion
- 1515
- RadialfortsatzRadial extension
- 1616
- lineare Führungenlinear guides
- 1717
- Hülsenkörpersleeve body
- 1818
- Öffnungopening
- 1919
- ZentralbereichCentral area
- 2020
- Umfangsabschnitt des ZentralbereichsPeripheral section of the central area
- 2121
- RadialplattenabschnittRadial plate portion
- 2222
- Radialschlitzradial slot
- 2323
- Rahmenframe
- 2424
- stirnseitige Öffnungfrontal opening
- 2525
- Mitnehmertakeaway
- 2626
- Umfangsrandcircumferential edge
- 2727
- mittlerer Rahmenmiddle frame
- 2828
- Mitnehmertakeaway
- 2929
- Umfangsrandcircumferential edge
- 3030
- unterster Rahmenlowest frame
- 3131
- Rastmechanismusdetent mechanism
- 3232
- Rahmenabschnittframe section
- 3333
- Bedienelementoperating element
- 3434
- Linseneinheitlens unit
- 3535
- Antriebdrive
Claims (13)
- Infrared movement sensor comprising stationary, infrared-sensitive sensor units (7) which are accommodated in a sensor housing (4), cooperate optically with a stationary lens unit (34), are designed to output an electronic movement-detection signal and are spaced apart in a peripheral direction, and comprising means for changing and/or setting a detection range, in particular a maximum and/or minimum effective detection distance, which for changing and/or setting the detection range comprise a manually operable adjustment device (11), which is accommodated in the housing at least in part, for adjusting a screen (9) relative to the sensor units (7), wherein the adjustment device (11) comprises a manually operable threaded element (12) which is designed as a spindle or spindle nut and which, in response to rotary operation, causes a change in position of the screen (9) along a linear movement path, and wherein the screen (9) extends in a region between two sensor units (7) which are adjacent in the peripheral direction.
- Movement sensor according to claim 1, characterised in that the screen (9, 19) engages in the threaded element (12), preferably via an engagement part preferably designed as an internal thread part or external thread part or an engagement portion (14) which is integral with the screen (9) and preferably designed as an internal thread portion or external thread portion.
- Movement sensor according to claim 2, characterised in that the engagement part or the engagement portion (14) is arranged in a rotationally fixed manner and preferably guided in an in particular slot-like guide which extends parallel to the longitudinal central axis of the threaded element.
- Movement sensor according to any of the preceding claims, characterised in that the linear movement path along which the screen (9) is adjustable is arranged parallel to and with spacing from a longitudinal central axis of the threaded element.
- Movement sensor according to any of the preceding claims, characterised in that the threaded element (12) is self-locking.
- Movement sensor according to any of the preceding claims, characterised in that the plurality of, preferably four, sensor units (7) which are spaced apart in the peripheral direction are provided to cover a detection range which extends through 360° overall.
- Movement sensor according to any of the preceding claims, characterised in that the sensor units (7) are inclined relative to the linear movement path of the screen (9), preferably at an angle from a range between 20° and 70°, preferably between 30° and 60°.
- Movement sensor according to any of the preceding claims, characterised in that the screen (9) extends from a common centre into the region between two sensor units (7) which are adjacent in the peripheral direction.
- Movement sensor according to claim 8, characterised in that the screen (9) is cross-shaped in a plan view and in particular has a thickened central region.
- Movement sensor according to any of the preceding claims, characterised in that the sensor units (7) are arranged on a carrier body, in which the screen (9) is guided in a linear manner at a plurality of points which are spaced apart in the peripheral direction, preferably in radial slots (22).
- Movement sensor according to any of the preceding claims, characterised in that the threaded element (12) is provided, on an end face accessible from outside the housing, a drive (35), in particular a slot drive, a cross slot drive, a hexagon drive or a torx drive, for cooperation with a rotation tool for manual operation.
- Movement sensor according to any of the preceding claims, characterised in that the screen (9) and/or the threaded element (12) and/or the housing is/are designed as plastics part(s), in particular plastics injection-moulded part(s).
- Movement sensor according to any of the preceding claims, characterised in that the sensor housing (4) comprises means for wall or ceiling mounting and/or for mounting on a mounting carrier part and the linear movement path along which the screen (9) is adjustable extends perpendicular to the surface extension of a rear side of the sensor housing (4).
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EP12157767.0A EP2463835B1 (en) | 2010-04-08 | 2011-03-23 | Infrared motion sensor |
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DE201010014282 DE102010014282A1 (en) | 2010-04-08 | 2010-04-08 | Infrared motion sensor |
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EP12157767.0A Active EP2463835B1 (en) | 2010-04-08 | 2011-03-23 | Infrared motion sensor |
EP11159468A Active EP2375389B1 (en) | 2010-04-08 | 2011-03-23 | Infrared motion sensor |
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ES2664135B1 (en) * | 2016-10-18 | 2018-12-20 | Electronic Intelligent Controls, S.L. | Motion detector device |
DE202016106865U1 (en) * | 2016-12-09 | 2018-03-12 | Tridonic Gmbh & Co Kg | Sensor arrangement for detecting a movement and / or a presence of a person |
CN110500526A (en) * | 2018-05-17 | 2019-11-26 | 广州市番禺奥莱照明电器有限公司 | A kind of infrared induction lamps and lanterns covering 270 degree |
DE102019131487A1 (en) * | 2019-11-21 | 2021-05-27 | Dietmar Friedrich Brück | Detector unit, detector system and method for operating the detector system |
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EP1887535A1 (en) * | 2006-08-08 | 2008-02-13 | Robert Bosch GmbH | Lookdown zone mask for intrusion detector |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130038A (en) * | 1980-03-15 | 1981-10-12 | Omron Tateisi Electronics Co | Photoelectric switch |
DE8705013U1 (en) * | 1987-04-04 | 1987-05-27 | Reglomat AG, St. Gallen | Device for mechanically adjusting the response range of a passive infrared motion detector |
CH689926A5 (en) * | 1994-12-20 | 2000-01-31 | Reglomat Ag | Motion sensor has infrared sensor, lens placed in front of objective and attached to motion sensor's housing; objective can be adjusted wrt. lens in direction of radiation path |
JP3695096B2 (en) | 1997-10-20 | 2005-09-14 | アツミ電氣株式会社 | Hot wire sensor |
US6323488B1 (en) * | 1999-06-04 | 2001-11-27 | Desa International, Inc. | Adjustable motion sensing apparatus |
DE102006018732A1 (en) | 2006-04-20 | 2007-10-25 | Steinel Gmbh | Infrared motion sensor |
-
2010
- 2010-04-08 DE DE201010014282 patent/DE102010014282A1/en not_active Withdrawn
-
2011
- 2011-03-23 EP EP12157767.0A patent/EP2463835B1/en active Active
- 2011-03-23 EP EP11159468A patent/EP2375389B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1887535A1 (en) * | 2006-08-08 | 2008-02-13 | Robert Bosch GmbH | Lookdown zone mask for intrusion detector |
Also Published As
Publication number | Publication date |
---|---|
EP2463835B1 (en) | 2013-07-24 |
DE102010014282A1 (en) | 2011-10-13 |
EP2463835A1 (en) | 2012-06-13 |
EP2375389A1 (en) | 2011-10-12 |
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