EP2490192B1 - Passive infra-red motion sensor with adjustable detection range - Google Patents

Passive infra-red motion sensor with adjustable detection range Download PDF

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Publication number
EP2490192B1
EP2490192B1 EP12155739.1A EP12155739A EP2490192B1 EP 2490192 B1 EP2490192 B1 EP 2490192B1 EP 12155739 A EP12155739 A EP 12155739A EP 2490192 B1 EP2490192 B1 EP 2490192B1
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EP
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Prior art keywords
pir sensor
motion detector
circuit board
mounting plate
printed circuit
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German (de)
French (fr)
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EP2490192A2 (en
EP2490192A3 (en
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Peter Rümenapf
Michael Wiese
Dirk Goldyn
Robert Zapp
Lothar Blomberg
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ABB AG Germany
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ABB AG Germany
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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
    • G08B13/191—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 pyroelectric sensor means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements
    • G08B29/22—Provisions facilitating manual calibration, e.g. input or output provisions for testing; Holding of intermittent values to permit measurement

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  • the invention relates to a passive infrared motion detector with adjustable detection range under actuation of at least one mounted within the motion detector housing actuating element which causes in response to an operation a predetermined change in location of a PIR sensor relative to the motion detector housing and the motion detector housing seated lens along a predetermined Einstellweges.
  • the infrared motion sensor has means for changing and / or setting a detection range, in particular a maximum and / or minimum effective detection distance, which have a manually operable, mounted in the housing actuator to change or adjustment of the detection range.
  • the actuator causes in response to an operation a predetermined change in location of the sensor unit in the sensor housing relative to the sensor housing and the sensor housing sitting on the lens unit along a predetermined arcuate Einstellweges.
  • the adjustment path is at least partially circular arc, elliptical, parabolic or hyperbolic.
  • the change of location is one preferred continuous or stepwise adjustable displacement of the sensor unit along the arc.
  • Generally known motion detectors usually have a detection angle equal to or greater than 180 °. In many cases, these large coverage angles and the large coverage areas that can be realized with them are not needed at all. On the contrary, a large detection angle is in many cases even disturbing, as it leads to the generation of unwanted motion detection signals in non-interest border areas of the detection area. For this reason, it is customary to mask the unneeded segments of the lens with an IR-impermeable film. By masking the unneeded segments is then in a motion detector with a large detection area enabling and thus relatively expensive sensors a large part of the sensor possibilities broke and is not used at all.
  • the invention has for its object to provide an optimized passive infrared motion detector with adjustable detection range.
  • a PIR sensor can be used with a detection range of preferably 70 °, which is additionally arranged longitudinally longitudinally displaceable on a horizontal plane, wherein the settings of the horizontal displacement and the vertical displacement take place independently.
  • the detection range is changed by the vertical displaceability of the sensor can, whereby an optimal adaptation to the place of use is given without the usual masking of the lenses.
  • the motion detector can be equipped with a relatively small detection range of preferably 70 ° enabling and thus very simple and inexpensive sensors, ie with a minimum of sensors.
  • a smaller desired detection range is selected and set from a large possible detection range of more than 180 °.
  • this longitudinal displacement allows positioning of the desired detection area within a much larger overall area. This is advantageously possible without mechanical adjustment of the motion detector housing.
  • the passive infrared motion detector requires no visible mechanical joints from the outside. Sensor positioning is set to the optimum detection range required during the actual application.
  • Fig. 1 is a perspective view into the interior of a "cut" passive infrared motion detector shown. It is one inside a motion detector housing 1 arranged PIR sensor (passive infrared) to detect 3, which is mounted on a circuit board / mounting plate 4 and via an upstream lens (Fresnel lens) 2 can receive infrared radiation.
  • the circuit board / mounting plate 4 is movably mounted by means of a guide 5 for horizontal, rectilinear displacement of the PIR sensor 5, wherein the horizontal displacement region X is indicated by an arrow.
  • adjusting element 7 for the vertical PIR sensor displacement an adjusting screw is shown, which has a toothed ring, which engages in a connected to the circuit board / mounting plate 4 respectively with the guide 5 rack.
  • actuating the adjusting screw 7 the desired vertical position of the PIR sensor 3 can be adjusted.
  • a similar, screw-actuated sprocket rack configuration can also be used for horizontal PIR sensor displacement.
  • Fig. 3 an embodiment with vertical displacement of the PIR sensor is shown.
  • the motion detector housing 1 can be seen with PIR sensor 3 mounted on the printed circuit board / mounting plate 4, with an adjusting disk 8 on its front side with a setting groove ("slot") suitable for tool engagement (eg screwdriver).
  • 11 is outlined.
  • the left section of the figure is shown in the form of an "exploded view” that the adjusting disc 8 is provided at its rear with an eccentric 10, which in a slot 12 of the circuit board / mounting plate 4 engages, whereby upon rotation of the adjusting disc 8 - z.
  • a movement of the circuit board / mounting plate 4 (including the mounted thereon PIR sensor 3) within the vertical displacement range Y occurs.
  • a preferably fixed (for example integrally formed) spring element 13 on the motion detector housing 1 is sketched, which resiliently engages in detents 9 on the outer circumference of the adjusting disc 8, whereby fixing a set by rotation current position of the adjusting disc 8 is made.
  • the passive infrared motion detector is first mounted at the desired location, eg. B. on a house wall. Thereafter, the control elements for the PIR sensor displacement - see z. B. adjusting element 7 - operated until the desired detection range is set. In order to operate these control elements, it may be necessary to disassemble the lens 2 beforehand. After setting the desired detection range, the lens 2 is mounted again.
  • the deteriorating optical properties of the passive infrared motion detector that occur as a result of displacement of the PIR sensor 3 in the vertical and possibly also in the horizontal plane can be disregarded, because with lower detection range, only a lower sensitivity is necessary.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Description

Die Erfindung betrifft einen Passiv-Infrarot-Bewegungsmelder mit einstellbarem Erfassungsbereich unter Betätigung mindestens eines innerhalb des Bewegungsmeldergehäuses montierten Stellelementes, welches als Reaktion auf eine Betätigung eine vorbestimmte Ortsveränderung eines PIR-Sensors relativ zum Bewegungsmeldergehäuse und zur am Bewegungsmeldergehäuse sitzenden Linse entlang eines vorbestimmten Einstellweges bewirkt.The invention relates to a passive infrared motion detector with adjustable detection range under actuation of at least one mounted within the motion detector housing actuating element which causes in response to an operation a predetermined change in location of a PIR sensor relative to the motion detector housing and the motion detector housing seated lens along a predetermined Einstellweges.

Aus der EP 1 847 972 B1 ist ein Infrarot-Bewegungssensor mit einer in einem Sensorgehäuse aufgenommenen und optisch mit einer Linseneinheit zusammenwirkenden, infrarotempfindlichen und zum Ausgeben eines elektronischen Bewegungserfassungssignals ausgebildeten Sensoreinheit bekannt. Der Infrarot-Bewegungssensor weist Mittel zur Veränderung und/oder Einstellung eines Erfassungsbereiches, insbesondere einer maximalen und/oder minimalen wirksamen Erfassungsentfernung auf, die zur Veränderung oder Einstellung des Erfassungsbereiches ein manuell betätigbares, im Gehäuse gelagertes Stellelement aufweisen. Das Stellelement bewirkt als Reaktion auf eine Betätigung eine vorbestimmte Ortsveränderung der Sensoreinheit im Sensorgehäuse relativ zum Sensorgehäuse und zur am Sensorgehäuse sitzenden Linseneinheit entlang eines vorbestimmten bogenförmigen Einstellweges. Der Einstellweg verläuft zumindest abschnittsweise kreisbogenförmig, elliptisch, parabolisch oder hyperbolisch. Die Ortsveränderung ist eine bevorzugt kontinuierliche oder stufenweise einstellbare Verschiebung der Sensoreinheit entlang des Bogens.From the EP 1 847 972 B1 is an infrared motion sensor with a recorded in a sensor housing and optically cooperating with a lens unit, infrared-sensitive and designed to output an electronic motion detection signal sensor unit known. The infrared motion sensor has means for changing and / or setting a detection range, in particular a maximum and / or minimum effective detection distance, which have a manually operable, mounted in the housing actuator to change or adjustment of the detection range. The actuator causes in response to an operation a predetermined change in location of the sensor unit in the sensor housing relative to the sensor housing and the sensor housing sitting on the lens unit along a predetermined arcuate Einstellweges. The adjustment path is at least partially circular arc, elliptical, parabolic or hyperbolic. The change of location is one preferred continuous or stepwise adjustable displacement of the sensor unit along the arc.

Aus der US 5 757 004 A1 ist ein Passiv-Infrarot-Bewegungsmelder mit einstellbarem Erfassungsbereich und aus der DE 196 48 466 A1 ist ein Überwachungsgerät mit einem Infrarot-Sensor und einer optischen Fokussiereinrichtung bekannt.From the US 5,757,004 A1 is a passive infrared motion detector with adjustable detection range and out of the DE 196 48 466 A1 For example, a monitor having an infrared sensor and an optical focusing device is known.

Allgemein bekannte Bewegungsmelder haben in der Regel einen Erfassungswinkel gleich oder größer als 180°. In vielen Fällen werden diese großen Erfassungswinkel und die damit realisierbaren großen Erfassungsbereiche überhaupt nicht benötigt. Im Gegenteil, ein großer Erfassungswinkel ist vielfach sogar störend, da er zur Erzeugung von unerwünschten Bewegungserfassungssignalen in nicht interessierenden Randbereichen des Erfassungsbereiches führt. Aus diesem Grund ist es üblich, die nicht benötigten Segmente der Linse mit einer IR-undurchlässigen Folie abzukleben. Durch das Abkleben der nicht benötigten Segmente liegt dann in einem Bewegungsmelder mit einer einen großen Erfassungsbereich ermöglichenden und damit relativ teuren Sensorik ein großer Teil der Sensorik-Möglichkeiten brach und wird überhaupt nicht genutzt.Generally known motion detectors usually have a detection angle equal to or greater than 180 °. In many cases, these large coverage angles and the large coverage areas that can be realized with them are not needed at all. On the contrary, a large detection angle is in many cases even disturbing, as it leads to the generation of unwanted motion detection signals in non-interest border areas of the detection area. For this reason, it is customary to mask the unneeded segments of the lens with an IR-impermeable film. By masking the unneeded segments is then in a motion detector with a large detection area enabling and thus relatively expensive sensors a large part of the sensor possibilities broke and is not used at all.

Der Erfindung liegt die Aufgabe zugrunde, einen optimierten Passiv-Infrarot-Bewegungsmelder mit einstellbarem Erfassungsbereich anzugeben.The invention has for its object to provide an optimized passive infrared motion detector with adjustable detection range.

Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes des Anspruchs 1 erfindungsgemäß dadurch gelöst, dass ein PIR-Sensor auf einer vertikalen Ebene geradlinig längsverschiebbar angeordnet ist.This object is achieved in conjunction with the features of the preamble of claim 1 according to the invention in that a PIR sensor is arranged on a vertical plane linearly displaceable.

In weiterer Ausgestaltung kann ein PIR-Sensor mit einem Erfassungsbereich von vorzugsweise 70° eingesetzt sein, welcher zusätzlich auf einer horizontalen Ebene geradlinig längsverschiebbar angeordnet ist, wobei die Einstellungen der horizontalen Verschiebung und der vertikalen Verschiebung unabhängig voneinander erfolgen.In a further embodiment, a PIR sensor can be used with a detection range of preferably 70 °, which is additionally arranged longitudinally longitudinally displaceable on a horizontal plane, wherein the settings of the horizontal displacement and the vertical displacement take place independently.

Zweckmäßig ist mindestens eine per Stellschraube betätigbare Exzenter- oder Zahnkranz-Zahnstangen-Konfiguration für die vertikale und/oder horizontale PIR-Sensor-Verschiebung vorgesehen.It is expedient to provide at least one adjusting screw or eccentric or toothed rack and pinion configuration for the vertical and / or horizontal PIR sensor displacement.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass durch die vertikale Verschiebbarkeit des Sensors der Erfassungsbereich verändert werden kann, wodurch eine optimale Anpassung an den Einsatzort ohne das übliche Abkleben der Linsen gegeben ist. Weiter kann der Bewegungsmelder mit einer einen relativ kleinen Erfassungsbereich von vorzugsweise 70° ermöglichenden und damit sehr einfachen und preiswerten Sensorik ausgerüstet werden kann, d. h. mit einem Minimum an Sensorik. Durch geradlinige Verschiebung des PIR-Sensors innerhalb des Bewegungsmeldergehäuses wird aus einem großen möglichen Erfassungsbereich von mehr als 180° ein kleinerer gewünschter Erfassungsbereich ausgewählt und festgelegt. Mit anderen Worten erlaubt diese Längsverschiebbarkeit eine Positionierung des gewünschten Erfassungsbereiches innerhalb eines wesentlich größeren Gesamtbereichs. Dies ist vorteilhaft ohne mechanische Verstellung des Bewegungsmeldergehäuses möglich. Am Passiv-Infrarot-Bewegungsmelder sind von außen keine sichtbaren mechanischen Gelenke erforderlich. Die Sensorpositionierung wird bei der Montage auf den im konkreten Anwendungsfall wirklich benötigten, optimalen Erfassungsbereich eingestellt.The advantages that can be achieved with the invention are, in particular, that the detection range is changed by the vertical displaceability of the sensor can, whereby an optimal adaptation to the place of use is given without the usual masking of the lenses. Further, the motion detector can be equipped with a relatively small detection range of preferably 70 ° enabling and thus very simple and inexpensive sensors, ie with a minimum of sensors. By linear displacement of the PIR sensor within the motion detector housing, a smaller desired detection range is selected and set from a large possible detection range of more than 180 °. In other words, this longitudinal displacement allows positioning of the desired detection area within a much larger overall area. This is advantageously possible without mechanical adjustment of the motion detector housing. The passive infrared motion detector requires no visible mechanical joints from the outside. Sensor positioning is set to the optimum detection range required during the actual application.

Die Erfindung wird nachstehend an Hand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. Es zeigen:

Fig. 1
eine perspektivische Sicht in den Innenraum eines "aufgeschnittenen" Passiv-Infrarot-Bewegungsmelders,
Fig. 2
eine perspektivische Sicht durch die Linse in den Innenraum eines Passiv-Infrarot-Bewegungsmelders,
Fig. 3
eine Ausführungsform mit vertikaler Verschiebbarkeit des PIR-Sensors,
Fig. 4
die durch horizontale Verschiebung des PIR-Sensors einstellbaren unterschiedlichen Erfassungsbereiche des Passiv-Infrarot-Bewegungsmelders,
Fig. 5
die durch vertikale Verschiebbarkeit des PIR-Sensors einstellbaren unterschiedlichen Erfassungsbereiche des Passiv-Infrarot-Bewegungsmelders.
The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:
Fig. 1
a perspective view into the interior of a "cut-open" passive infrared motion detector,
Fig. 2
a perspective view through the lens into the interior of a passive infrared motion detector,
Fig. 3
an embodiment with vertical displacement of the PIR sensor,
Fig. 4
the different detection ranges of the passive infrared motion detector that can be set by horizontal displacement of the PIR sensor,
Fig. 5
the different detection ranges of the passive infrared motion detector that can be set by vertical displacement of the PIR sensor.

In Fig. 1 ist eine perspektivische Sicht in den Innenraum eines "aufgeschnittenen" Passiv-Infrarot-Bewegungsmelders dargestellt. Es ist ein innerhalb eines Bewegungsmeldergehäuses 1 angeordneter PIR-Sensor (Passiv-Infrarot) 3 zu erkennen, welcher auf einer Leiterplatte/Montageplatte 4 montiert ist und über eine vorgeschaltete Linse (Fresnellinse) 2 Infrarot-Strahlung empfangen kann. Die Leiterplatte/Montageplatte 4 wird mittels einer Führung 5 für horizontale, geradlinige Verschiebung des PIR-Sensors 5 beweglich befestigt, wobei der horizontale Verschiebungsbereich X durch einen Pfeil gekennzeichnet ist.In Fig. 1 is a perspective view into the interior of a "cut" passive infrared motion detector shown. It is one inside a motion detector housing 1 arranged PIR sensor (passive infrared) to detect 3, which is mounted on a circuit board / mounting plate 4 and via an upstream lens (Fresnel lens) 2 can receive infrared radiation. The circuit board / mounting plate 4 is movably mounted by means of a guide 5 for horizontal, rectilinear displacement of the PIR sensor 5, wherein the horizontal displacement region X is indicated by an arrow.

In Fig. 2 ist eine perspektivische Sicht durch die Linse 2 in den Innenraum des Bewegungsmeldergehäuses 1 eines Passiv-Infrarot-Bewegungsmelders dargestellt. Es ist die Frontseite der Leiterplatte/Montageplatte 4 mit daran befestigtem PIR-Sensor 3 zu erkennen. Dabei ist die Leiterplatte/Montageplatte 4 bei dieser Ausführungsform horizontal und vertikal verschiebbar, also insgesamt doppelt verstellbar,

  • was durch die Führung 5 für horizontale, geradlinige Verschiebung des PIR-Sensors 3 ermöglicht wird, wodurch ein horizontaler Verschiebungsbereich X des PIR-Sensors 3 definiert wird,
  • und was durch die Führung 6 für vertikale, geradlinige Verschiebung des PIR-Sensors 3 ermöglicht wird, wodurch ein vertikaler Verschiebungsbereich Y des PIR-Sensors 3 definiert wird.
In Fig. 2 is a perspective view through the lens 2 in the interior of the motion detector housing 1 of a passive infrared motion detector shown. It is the front of the circuit board / mounting plate 4 with attached PIR sensor 3 can be seen. In this case, the printed circuit board / mounting plate 4 in this embodiment horizontally and vertically displaceable, so a total of double adjustable,
  • which is made possible by the guide 5 for horizontal, rectilinear displacement of the PIR sensor 3, whereby a horizontal displacement range X of the PIR sensor 3 is defined,
  • and what is allowed by the guide 6 for vertical, rectilinear displacement of the PIR sensor 3, whereby a vertical displacement range Y of the PIR sensor 3 is defined.

Als Stellelement 7 für die vertikale PIR-Sensor-Verschiebung ist eine Verstellschraube gezeigt, welche einen Zahnkranz aufweist, der in eine mit der Leiterplatte/Montageplatte 4 respektive mit der Führung 5 verbundene Zahnstange eingreift. Durch Betätigung der Stellschraube 7 lässt sich die gewünschte vertikale Position des PIR-Sensors 3 einstellen. Eine gleichartige, per Stellschraube betätigbare Zahnkranz-Zahnstangen-Konfiguration ist auch für die horizontale PIR-Sensor-Verschiebung einsetzbar.As adjusting element 7 for the vertical PIR sensor displacement, an adjusting screw is shown, which has a toothed ring, which engages in a connected to the circuit board / mounting plate 4 respectively with the guide 5 rack. By actuating the adjusting screw 7, the desired vertical position of the PIR sensor 3 can be adjusted. A similar, screw-actuated sprocket rack configuration can also be used for horizontal PIR sensor displacement.

In Fig. 3 ist eine Ausführungsform mit vertikaler Verschiebbarkeit des PIR-Sensors dargestellt. Im rechten Abschnitt der Figur ist das Bewegungsmeldergehäuse 1 mit auf der Leiterplatte/Montageplatte 4 montiertem PIR-Sensor 3 zu erkennen, wobei eine Stellscheibe 8 an ihrer Frontseite mit einer für einen Werkzeugeingriff (z. B. Schraubendreher) geeigneten Einstellnut ("Schlitz") 11 skizziert ist. Im linken Abschnitt der Figur ist in Form einer "Explosionszeichnung" gezeigt, dass die Stellscheibe 8 an ihrer Rückseite mit einem Exzenterzapfen 10 versehen ist, welcher in ein Langloch 12 der Leiterplatte/Montageplatte 4 eingreift, wodurch bei Drehung der Stellscheibe 8 - z. B. durch Eingriff eines Schraubendrehers in die Einstellnut 11 - eine Bewegung der Leiterplatte/Montageplatte 4 (inklusive des darauf montierten PIR-Sensors 3) innerhalb des vertikalen Verschiebungsbereichs Y erfolgt. Im mittleren Abschnitt der Figur ist ein vorzugsweise am Bewegungsmeldergehäuse 1 befestigtes (z. B. angeformtes) Federelement 13 skizziert, welches federnd in Rastungen 9 am Außenumfang der Stellscheibe 8 eingreift, wodurch ein Fixieren einer per Drehung eingestellten aktuellen Position der Stellscheibe 8 vorgenommen wird.In Fig. 3 an embodiment with vertical displacement of the PIR sensor is shown. In the right-hand section of the figure, the motion detector housing 1 can be seen with PIR sensor 3 mounted on the printed circuit board / mounting plate 4, with an adjusting disk 8 on its front side with a setting groove ("slot") suitable for tool engagement (eg screwdriver). 11 is outlined. In the left section of the figure is shown in the form of an "exploded view" that the adjusting disc 8 is provided at its rear with an eccentric 10, which in a slot 12 of the circuit board / mounting plate 4 engages, whereby upon rotation of the adjusting disc 8 - z. B. by engagement of a screwdriver in the Einstellnut 11 - a movement of the circuit board / mounting plate 4 (including the mounted thereon PIR sensor 3) within the vertical displacement range Y occurs. In the middle section of the figure, a preferably fixed (for example integrally formed) spring element 13 on the motion detector housing 1 is sketched, which resiliently engages in detents 9 on the outer circumference of the adjusting disc 8, whereby fixing a set by rotation current position of the adjusting disc 8 is made.

In Fig. 4 sind die durch horizontale Verschiebung des PIR-Sensors einstellbaren unterschiedlichen Erfassungsbereiche des Passiv-Infrarot-Bewegungsmelders dargestellt. Es sind beispielhaft drei unterschiedliche Positionen des PIR-Sensors 3 dargestellt, nämlich eine erste (linke) Endposition A des horizontalen Verschiebungsbereichs, eine Mittelposition B des horizontalen Verschiebungsbereichs und eine zweite (rechte) Endposition C des horizontalen Verschiebungsbereichs. Der Erfassungswinkel α des PIR-Sensors 3 beträgt vorzugsweise 70°. Die Entfernung vom PIR-Sensor 3 zur betrachteten Ebene beträgt D. Wie gut zu erkennen ist, ergeben sich für die einzelnen Positionen A, B, C des PIR-Sensors 3 unterschiedliche Erfassungsbereiche, nämlich

  • ein mit strichpunktiertem Linienzug skizzierter wirksamer Erfassungsbereich zwischen einer ersten (linken) Grenze A1 und einer zweiten (rechten) Grenze A2 bei horizontaler Verschiebung des PIR-Sensors 3 in die erste (linke) Endposition A,
  • ein mit durchgezogenem Linienzug skizzierter wirksamer Erfassungsbereich zwischen einer ersten (linken) Grenze B1 und einer zweiten (rechten) Grenze B2 bei horizontaler Verschiebung des PIR-Sensors 3 in die Mittenposition B,
  • ein mit gestricheltem Linienzug skizzierter wirksamer Erfassungsbereich zwischen einer ersten (linken) Grenze C1 und einer zweiten (rechten) Grenze C2 bei horizontaler Verschiebung des PIR-Sensors 3 in die zweite (rechte) Endposition C,
In Fig. 4 shows the different detection ranges of the passive infrared motion detector that can be set by horizontal displacement of the PIR sensor. There are exemplified three different positions of the PIR sensor 3, namely, a first (left) end position A of the horizontal shift range, a center position B of the horizontal shift range, and a second (right) end position C of the horizontal shift range. The detection angle α of the PIR sensor 3 is preferably 70 °. The distance from the PIR sensor 3 to the considered plane is D. As can be clearly seen, different detection ranges result for the individual positions A, B, C of the PIR sensor 3, namely
  • an effective detection range sketched with a dot-dash line between a first (left) boundary A1 and a second (right) boundary A2 with horizontal displacement of the PIR sensor 3 into the first (left) end position A,
  • an effective detection range sketched by a solid line between a first (left) boundary B1 and a second (right) boundary B2 with horizontal displacement of the PIR sensor 3 into the center position B,
  • an effective detection range sketched with a dashed line between a first (left) boundary C1 and a second (right) boundary C2 with horizontal displacement of the PIR sensor 3 into the second (right) end position C,

In gleicher Art und Weise ergeben sich unterschiedliche wirksame Erfassungsbereiche bei vertikaler Verschiebung des PIR-Sensors 3.In the same way, different effective detection ranges result in the case of vertical displacement of the PIR sensor 3.

Zur Einstellung des im konkreten Anwendungsfall gewünschten Erfassungsbereichs wird der Passiv-Infrarot-Bewegungsmelder zunächst am gewünschten Ort montiert, z. B. an einer Hauswand. Danach werden die Stellelemente für die PIR-Sensor-Verschiebung - siehe z. B. Stellelement 7 - betätigt, bis der gewünschte Erfassungsbereich eingestellt ist. Um diese Stellelemente betätigen zu können, kann es zuvor erforderlich sein, die Linse 2 zu demontieren. Nach Einstellung des gewünschten Erfassungsbereichs wird die Linse 2 wiederum montiert.To set the desired detection range in the specific application, the passive infrared motion detector is first mounted at the desired location, eg. B. on a house wall. Thereafter, the control elements for the PIR sensor displacement - see z. B. adjusting element 7 - operated until the desired detection range is set. In order to operate these control elements, it may be necessary to disassemble the lens 2 beforehand. After setting the desired detection range, the lens 2 is mounted again.

Die sich durch Verschiebung des PIR-Sensors 3 in der vertikalen und gegebenenfalls auch in der horizontalen Ebene einstellenden verschlechterten optischen Eigenschaften des Passiv-Infrarot-Bewegungsmelders können unberücksichtigt bleiben, weil bei geringerer Erfassungsreichweite auch nur eine geringere Empfindlichkeit nötig ist.The deteriorating optical properties of the passive infrared motion detector that occur as a result of displacement of the PIR sensor 3 in the vertical and possibly also in the horizontal plane can be disregarded, because with lower detection range, only a lower sensitivity is necessary.

In Fig. 5 sind die durch vertikale Verschiebbarkeit des PIR-Sensors einstellbaren unterschiedlichen Erfassungsbereiche des Passiv-Infrarot-Bewegungsmelders dargestellt. Es sind beispielhaft drei unterschiedliche Positionen des PIR-Sensors 3 dargestellt, nämlich eine obere Endposition E des vertikalen Verschiebungsbereichs, eine Mittelposition F des vertikalen Verschiebungsbereichs und eine untere Endposition G des vertikalen Verschiebungsbereichs. Dementsprechend ergeben sich

  • bei der unteren Endposition G eine Entfernung D1 des PIR-Sensors 3 von der zu betrachtetenden Ebene - siehe den durchgezogenen Linienzug und den hierdurch definierten "großen" Erfassungsbereich,
  • bei der Mittenposition F eine Entfernung D2 des PIR-Sensors 3 von der zu betrachtetenden Ebene - siehe den strichpunktierten Linienzug und den hierdurch definierten "mittleren" Erfassungsbereich,
  • bei der oberen Endposition E eine Entfernung D3 des PIR-Sensors 3 von der zu betrachtetenden Ebene - siehe den gestrichelten Linienzug und den hierdurch definierten "kleinen" Erfassungsbereich.
In Fig. 5 shows the different detection ranges of the passive infrared motion detector that can be set by vertical displacement of the PIR sensor. There are exemplified three different positions of the PIR sensor 3, namely, an upper end position E of the vertical shift range, a center position F of the vertical shift range, and a lower end position G of the vertical shift range. Accordingly arise
  • at the lower end position G, a distance D1 of the PIR sensor 3 from the plane to be viewed - see the solid line and the "large" detection range defined thereby,
  • at the center position F, a distance D2 of the PIR sensor 3 from the plane to be viewed - see the dot-dash line and the "middle" detection range defined thereby,
  • at the upper end position E, a distance D3 of the PIR sensor 3 from the plane to be viewed - see the dashed line and the "small" detection range defined thereby.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Bewegungsmeldergehäusemotion housing
22
Linse (Fresnellinse)Lens (Fresnel lens)
33
PIR-Sensor (Passiv-Infrarot)PIR sensor (passive infrared)
44
Leiterplatte/MontageplattePCB / mounting plate
55
Führung für horizontale, geradlinige Verschiebung des PIR-SensorsGuide for horizontal, linear displacement of the PIR sensor
66
Führung für vertikale, geradlinige Verschiebung des PIR-SensorsGuide for vertical, linear displacement of the PIR sensor
77
Stellelement für PIR-Sensor-Verschiebung, z. B. StellschraubeActuator for PIR sensor displacement, z. B. adjusting screw
88th
Stellscheibeadjusting disk
99
Rastungen der Stellscheibe 8Rastungen the adjusting disc 8
1010
Exzenterzapfen der Stellscheibe 8Eccentric of the adjusting disc 8th
1111
Einstellnut der Stellscheibe 8 (für Werkzeugeinriff) für Stellscheiben-EinstellungAdjusting groove of adjusting disc 8 (for tool engagement) for adjusting disc adjustment
1212
Langloch der Leiterplatte 4 für Eingriff des Exzenterzapfens 10Slot of the circuit board 4 for engagement of the eccentric pin 10th
1313
Federelement zur Fixierung der Stellscheiben-EinstellungSpring element for fixing the setting wheel adjustment
AA
erste (linke) Endposition des PIR-Sensors 3 bei der horizontalen Verschiebungfirst (left) end position of the PIR sensor 3 in the horizontal displacement
A1A1
erste Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die erste Endposition Afirst limit of the effective detection range with horizontal displacement of the PIR sensor 3 in the first end position A.
A2A2
zweite Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die erste Endposition Asecond boundary of the effective detection range with horizontal displacement of the PIR sensor 3 in the first end position A.
BB
Mittenposition des PIR-Sensors 3 bei der horizontalen VerschiebungCenter position of the PIR sensor 3 in the horizontal displacement
B1B1
erste Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die Mittenposition Bfirst limit of the effective detection range with horizontal displacement of the PIR sensor 3 in the middle position B
B2B2
zweite Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die Mittenposition Bsecond boundary of the effective detection range with horizontal displacement of the PIR sensor 3 in the center position B
CC
zweite (rechte) Endposition des PIR-Sensors 3 bei der horizontalen Verschiebungsecond (right) end position of the PIR sensor 3 in the horizontal displacement
C1C1
erste Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die zweite Endposition Bfirst limit of the effective detection range with horizontal displacement of the PIR sensor 3 in the second end position B.
C2C2
zweite Grenze des wirksamen Erfassungsbereichs bei horizontaler Verschiebung des PIR-Sensors 3 in die zweite Endposition Bsecond boundary of the effective detection range with horizontal displacement of the PIR sensor 3 in the second end position B.
DD
Entfernung des PIR-Sensors 3 von der betrachteten EbeneRemoval of the PIR sensor 3 from the considered plane
Ee
obere Endposition des PIR-Sensors 3 bei der vertikalen Verschiebungupper end position of the PIR sensor 3 in the vertical displacement
FF
Mittenposition des PIR-Sensors 3 bei der vertikalen VerschiebungCenter position of the PIR sensor 3 in the vertical displacement
GG
untere Endposition des PIR-Sensors 3 bei der vertikalen Verschiebunglower end position of the PIR sensor 3 in the vertical displacement
αα
Erfassungswinkel des PIR-Sensors 3Acquisition angle of the PIR sensor 3
XX
horizontaler Verschiebungsbereichhorizontal shift range
YY
vertikaler Verschiebungsbereichvertical shift range

Claims (2)

  1. Passive infrared motion detector with an adjustable detection range in response to the actuation of at least one actuating element, which is mounted inside the motion detector housing (1) and, as a reaction to an actuation, brings about a predetermined change in location along a predetermined adjustment path of a PIR sensor (3) mounted on a printed circuit board/mounting plate (4) in relation to the motion detector housing (1) and in relation to the lens (2) fitted on the motion detector housing (1), wherein the PIR sensor (3) is arranged longitudinally displaceably in a rectilinear manner on a vertical plane, wherein at least one eccentric configuration that can be actuated by an actuating screw is provided for the vertical and/or horizontal PIR sensor displacement and wherein an adjusting disc (8) is provided on its rear side with an eccentric pin (10), which engages in a slot (12) of the printed circuit board/mounting plate (4), whereby a movement of the printed circuit board/mounting plate (4) including the PIR sensor (3) mounted on it takes place within the vertical displacement range (Y) when there is rotation of the adjusting disc (8), wherein the printed circuit board/mounting plate (4) with the mounted PIR sensor (3) is vertically displaceable in a rectilinear manner vertically by means of a first guide (6), receiving the printed circuit board/mounting plate (4), and the vertical displacement range (Y) of the PIR sensor (3) is thereby defined, characterized in that the printed circuit board/mounting plate (4) with the mounted PIR sensor (3) is horizontally displaceable in a rectilinear manner horizontally by means of a second guide (5), receiving the printed circuit board/mounting plate (4), and a horizontal displacement range (X) of the PIR sensor (3) is thereby defined, and a spring element (13) is fastened to the motion detector housing (1), which element engages in a resilient manner in notches (9) on the outer circumference of the adjusting disc (8), whereby fixing of a current position of the adjusting disc (8) adjusted by rotation is performed and in that the adjusting disc (8) has on its front side an adjusting groove (11) suitable for the engagement of a tool.
  2. Passive infrared motion detector according to Claim 1, characterized in that the PIR sensor (3) is used with a detection range of preferably 70°, which is additionally arranged longitudinally displaceably in a rectilinear manner on a horizontal plane, wherein the adjustments of the horizontal displacement and the vertical displacement take place independently of one another.
EP12155739.1A 2011-02-18 2012-02-16 Passive infra-red motion sensor with adjustable detection range Active EP2490192B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011011586A DE102011011586A1 (en) 2011-02-18 2011-02-18 Passive infrared motion detector with adjustable detection range

Publications (3)

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EP2490192A2 EP2490192A2 (en) 2012-08-22
EP2490192A3 EP2490192A3 (en) 2012-12-19
EP2490192B1 true EP2490192B1 (en) 2015-06-17

Family

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Country Status (2)

Country Link
EP (1) EP2490192B1 (en)
DE (1) DE102011011586A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019102515U1 (en) * 2019-05-06 2020-08-14 Zumtobel Lighting Gmbh Arrangement of sensors in lights
WO2024068033A1 (en) * 2022-09-29 2024-04-04 Verisure Sàrl Detector for detecting presence or motion in a security installation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757004A (en) * 1995-08-11 1998-05-26 Larry C. Y. Lee Motion detector with external range adjustment
DE19648466A1 (en) * 1996-11-22 1998-05-28 Merten Gmbh & Co Kg Geb IR movement monitor with non-contact operation for securing at surface e.g. ceiling
DE102006018732A1 (en) 2006-04-20 2007-10-25 Steinel Gmbh Infrared motion sensor

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DE102011011586A1 (en) 2012-08-23
EP2490192A3 (en) 2012-12-19

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