EP0323621B1 - Radiation-sensitive switch - Google Patents

Radiation-sensitive switch Download PDF

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Publication number
EP0323621B1
EP0323621B1 EP88121616A EP88121616A EP0323621B1 EP 0323621 B1 EP0323621 B1 EP 0323621B1 EP 88121616 A EP88121616 A EP 88121616A EP 88121616 A EP88121616 A EP 88121616A EP 0323621 B1 EP0323621 B1 EP 0323621B1
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EP
European Patent Office
Prior art keywords
housing
detector
switch according
pivoting
housings
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88121616A
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German (de)
French (fr)
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EP0323621A2 (en
EP0323621A3 (en
Inventor
Adalbert Neumann
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ABB AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
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Application filed by Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Publication of EP0323621A2 publication Critical patent/EP0323621A2/en
Publication of EP0323621A3 publication Critical patent/EP0323621A3/en
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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 invention relates to a passive infrared detector acting as a switch of the type mentioned in the preamble of claim 1.
  • Infrared detectors are increasingly used as motion detectors in room surveillance both inside and outside of buildings. As passive detectors, they respond directly to radiation objects that emit heat radiation. Such a radiation object is e.g. also a person who enters a room to be monitored. There is therefore no need for an additional transmitter, as is required for other types of motion detectors.
  • An infrared detector which reaches a detection angle of up to 180 ° in the horizontal direction is known from EP-A2-0 113 468.
  • the heat radiation is focused on a sensor that is sensitive in the infrared range with the aid of collecting optics.
  • the collecting optics consist of a large number of interconnected individual collecting lenses which are arranged in a semicircle around the detector. Each individual converging lens thus forms a strip-shaped segment of an axially segmented cylinder cutout.
  • the converging lenses have the Structure of a Fresnell lens, so that a wide detection area is guaranteed not only radially to the cylindrical collecting optics, but also axially along the strip-shaped collecting lens.
  • a detector of the type described is mounted on a wall in such a way that the axis of the cylindrical collecting optics is aligned vertically, then it can at least extend the plane horizontally in front of it to the wall to which it is attached, monitor.
  • the sensitivity of the detector is often not sufficient to detect the entire depth of the room. But even in rooms that are arranged at an angle to each other and that lie in different directions, as is often the case with warehouses or corridors, a single detector is not sufficient to monitor the entire room.
  • a rotatable receiver housing is known, which is mounted on a base housing serving as a mounting base.
  • this receiver is also not suitable for monitoring rooms in two or more directions.
  • FR-A-2 492 113 describes an arrangement in which a transmitter and a receiver are attached to a mast so that they can be rotated in different horizontal angular positions relative to one another.
  • a fence-like barrier is formed in that the receiver on one mast receives the signal from the transmitter of an adjacent mast and forwards it via its transmitter to the receiver of the next mast. If the chain formed in this way is interrupted, an alarm is triggered.
  • Appropriate measures make it possible to enlarge the area to be protected, but not the area in front of a receiver, which is dependent on the detection angle of the receiver optics.
  • the size of the detection angle that can be achieved in total depends on the maximum detection angle of a detection lens in a horizontal or vertical plane and on the pivoting of two detection lenses towards one another in this plane.
  • the detector housing In principle, it is possible to design the detector housing with the detection optics accommodated by them by attaching corresponding joints such that they can be pivoted relative to one another.
  • this requires enclosures, which must be designed differently, depending on whether a single enclosure or several interconnected enclosures are to be used.
  • the detector housings are pivoted relative to one another by pivoting the receiving parts relative to a stationary support.
  • a further expedient embodiment of the invention provides for the receiving parts to be arranged along the carrier in different planes, the spacing of which is selected such that there is no mutual hindrance when pivoting in the area provided.
  • the receiving parts it is possible to arrange two or more housings in a common horizontal plane, but the pivoting angle is then relatively limited, since the housings are in the way of one another.
  • a horizontal displacement of the housing enables them to swivel up to 360 °.
  • a significant saving can also be achieved by leaving the detector housing unchanged in accordance with the previous versions, but only assigning the parts that are required to expand the detection angle, in particular the detection optics.
  • the parts that are used to process the electrical signal emitted by the detection optics and that are only required once for the entire device are advantageously accommodated in a central housing, which e.g. can also contain the power supply.
  • the central housing can be fastened at any point at a suitable distance from the detector housings, but can also be integrated particularly advantageously into the carrier.
  • a serving as a carrier Central housing can also be designed so that it integrates the detector housing, so that a common housing is created, but this is of course a special order, which requires a corresponding number of pieces.
  • a further expedient embodiment of the invention provides for each receiving part, which can optionally also be designed as a detector housing, to be fastened to the carrier with joints.
  • a swivel joint for swiveling in a horizontal plane and a tilt joint for swiveling in a vertical plane are provided. This combination enables the detection angle of the detector to be expanded both in the horizontal and in the vertical plane.
  • the swivel joint can be designed such that it encompasses the carrier or the central housing in a ring-like manner and enables a swivel angle of at least 90 °, preferably 180 °.
  • a stop is provided to limit the swivel angle, which should not exceed 360 °, because lines are led between the receiving parts that could tear off.
  • the electrical connections are made via plug contacts.
  • the number of detector housings to be connected to a central housing normally depends on the performance of the individual detectors but also on the needs of the users.
  • the number of plug inputs to be provided on the central housing must be based on this.
  • a more convenient but also more expensive solution provides for the connector inputs as well as the connector outputs to be fastened to the respective housing jacket of the housing and to be coordinated with one another in such a way that when an additional detector housing is attached, electrical contact is also made.
  • the electrical connecting lines are preferably fixed within a common housing part, usually the central housing.
  • the infrared detector includes two detector housings 1 with a window 3, behind which hides the detection optics, which have a limited detection area. Because the two detector housings 1 are offset by 180 ° to each other, the total detection area is doubled.
  • the two detector housings 1 are connected to a support 5 via receiving parts 4 by means of tilting joints 6.
  • the tilt joints 6 enable the detector housing to be pivoted in a vertical plane.
  • the carrier 5 is segmented, wherein individual segments 7 act as a pivot joint for the detector housing 1 and are held together by connecting elements 8.
  • the swivel joints 7 on the one hand and the connecting elements 8 on the other hand are provided with corresponding grooves and recesses which enable a form-fitting engagement and ensure the rotational mobility of the swivel joints 7.
  • a stop not shown here, however, serves to limit the horizontal pivoting of the detector housing to a maximum of 360 °. This measure prevents the connecting lines, which are not shown here and which have to be flexible anyway, are not over-tightened.
  • the receiving parts 4 can be integrated into the detector housing 1. Any number of alternatives to the structure shown in FIG. 1 would of course be conceivable here.
  • the joints one is in no way bound to the embodiment proposed here, since the joints merely pivot the detector housing 1 horizontally and vertically should enable what is largely achievable with known ball joints universal joints other types of joints.
  • the connection of the detector housing 1 to the carrier 5 can also be carried out in a variety of ways in such a way that the connecting lines are reliably guided.
  • One of these options is to arrange a bellows in the joint area in which the cables are also routed, which makes the housing practically flexible and protects the internal parts. Such an arrangement is known for example from DE-GM 8 534 063.
  • FIG. 3 shows an alternative to the embodiment according to FIG. 1, which makes it possible to use existing detector housings 1 for the arrangement according to the invention without any significant change.
  • the receiving parts 4 are designed as shells, which in turn are mechanically connected to the carrier 5 via a tilt joint 6 and a swivel joint 7.
  • the shell shape of the receiving part 4 is designed so that a detector housing 1 of the type already used can be used. Because of their diverse but known design options in the drawing not shown clamping or holding elements ensure that the detector housing 1 can not fall out of the receiving part 4.
  • the receiving part 4 is in turn designed in such a way that the tilting joint 6 enables the detector housing to be pivoted in a vertical plane and with the rotating joint 7 in a horizontal plane.
  • the swivel joint 7 consists of a ring-like clamp which is guided in a corresponding groove in the carrier 5.
  • the two detector housings 1 are offset from one another in stages so that their swivel path moved on different horizontal levels and thus no mutual disability arises.
  • the detector arrangement according to the invention comprises a plurality of detectors, each of which represents an independent electronic switch, then an electrical combination can consist in the individual switches being parallel to one another and thus each switch having a corresponding consumer, preferably a lighting device can turn on.
  • each detector housing 1 must not only contain an optical recording system, but also the electronics required for evaluating the optical signals.
  • this can easily be done by accommodating the components for the common electronics, which in this case also form a common switch, in a central housing 2.
  • part of the segmented carrier 5 will be used for this purpose, and preferably a fixed segment will be selected, since this considerably simplifies the mechanical structure.
  • the requirements to be made here are best met by a module technology in which the detector housings 1 designed as modules in accordance with FIG. 3 can be inserted into the corresponding receiving parts 4 in the respectively required number, and the electrical connection is also established in the process.
  • the connection can be made via a cable which is provided with a plug at its free end, and the counterpart of the plug can be fastened to the housing jacket of the central housing 2.
  • the plug connection can also be carried out within the receiving part 4 if a plug device is installed in it, which engages in a form-fitting manner in a plug connection attached to the detector housing 1 when the detector housing 1 is introduced.
  • Figures 4 to 6 show some alternative applications that can be solved with the detector device according to the invention.
  • the angles ⁇ 1 and ⁇ 2 are intended to identify detection angles which each extend in a horizontal plane, while the angles ⁇ 1 and ⁇ 2 are related to vertical planes.
  • both the angles ⁇ and the angles ⁇ are shown smaller than they are in conventional devices.
  • known devices achieve a horizontal detection angle of up to 180 °.
  • an expansion of the respective detection angle can in principle be achieved with a plurality of optical pickups arranged in different detector housings 1.
  • the detectors act as an on-off switch, there remains an overlap of the Detection angle is irrelevant, since the detector as a whole can no longer be switched on, so it does not matter which sensor the switching signal originates from, which therefore detects a fault.
  • Figure 4 shows an arrangement with two detector housings 1 and a central housing 2 serving as a carrier 5, which are arranged at right angles to one another and which e.g. could be installed in a corner of vertically adjoining corridors.
  • a central housing 2 serving as a carrier 5
  • the goal to enlarge the horizontal angle ⁇ by the angle ⁇ 1 + ⁇ 2.
  • the arrangement according to FIG. 5 is intended to enable an enlargement of the vertical recording angle ⁇ , which is achieved in that the two detector housings 1 are rotated vertically in one plane, but their horizontal orientation is different.
  • Such arrangements are preferably used where a far area and a near area are to be detected.
  • FIG. 6 shows an arrangement which corresponds to the example of FIGS. 1 to 3 and which in turn has the aim of expanding the winding ⁇ which extends in the horizontal direction. Arranged in the middle of a very large room or a correspondingly long corridor, it enables an infrared source to be determined in both directions.

Abstract

The object of the invention is to extend, by simple means and in economical fashion, a radiation-sensitive switch which, in its usual design, has a maximum coverage angle of 180 DEG in the horizontal plane. To achieve this, at least two detector casings (1) housing an optical recording system are disposed in pivotable fashion in relation to one another, and the second optical recording system is in each case aligned so that it covers an area not monitored by the first optical recording system. The invention is preferably used for area surveillance with the aid of infrared detectors. <IMAGE>

Description

Die Erfindung bezieht sich auf einen als Schalter wirkenden Passiv-Infrarotdetektor der im Oberbegriff des Anspruchs 1 genannten Art.The invention relates to a passive infrared detector acting as a switch of the type mentioned in the preamble of claim 1.

Infrarotdetektoren werden als Bewegungsmelder bei der Raumüberwachung sowohl innnerhalb wie auch außerhalb von Gebäuden zunehmend eingesetzt. Als passive Detektoren sprechen sie unmittelbar auf Strahlungsobjekte an, die Wärmestrahlung abgeben. Ein solches Strahlungsobjekt ist z.B. auch ein Mensch, der in einen zu überwachenden Raum eindringt. Es wir somit kein zusätzlicher Sender benötigt, wie er bei Bewegungsmeldern anderer Art erforderlich ist.Infrared detectors are increasingly used as motion detectors in room surveillance both inside and outside of buildings. As passive detectors, they respond directly to radiation objects that emit heat radiation. Such a radiation object is e.g. also a person who enters a room to be monitored. There is therefore no need for an additional transmitter, as is required for other types of motion detectors.

Ein Infrarotdetektor, der in der Horizontale einen Erfassungswinkel bis zu 180 ° erreicht, ist aus der EP-A2-0 113 468 bekannt. Bei diesem wird die Wärmestrahlung mit Hilfe einer Sammeloptik auf einen im Infrarotbereich empflindlichen Sensor fokussiert. Die Sammeloptik besteht aus einer Vielzahl miteinander verbundener einzelner Sammellinsen, die im Halbkreis um den Detektor angeordnet sind. Jede einzelne Sammellinse bildet somit ein streifenförmiges Segment eines axial segmentierten Zylinderausschnittes. Die Sammellinsen haben dabei die Struktur einer Fresnell-Linse, so daß nicht nur radial zur zylindrischen Sammeloptik, sondern auch axial entlang der streifenförmigen Sammellinse ein breiter Erfassungsbereich gewährleistet ist.An infrared detector which reaches a detection angle of up to 180 ° in the horizontal direction is known from EP-A2-0 113 468. In this case, the heat radiation is focused on a sensor that is sensitive in the infrared range with the aid of collecting optics. The collecting optics consist of a large number of interconnected individual collecting lenses which are arranged in a semicircle around the detector. Each individual converging lens thus forms a strip-shaped segment of an axially segmented cylinder cutout. The converging lenses have the Structure of a Fresnell lens, so that a wide detection area is guaranteed not only radially to the cylindrical collecting optics, but also axially along the strip-shaped collecting lens.

Geht man davon aus, daß ein Detektor der beschriebenen Art so an einer Wand montiert ist, daß die Achse der zylindrischen Sammeloptik vertikal ausgerichtet ist, so kann er zumindest die sich horizontal vor ihm erstreckende Ebene bis hin zur Wand, an der er befestigt ist, überwachen. Bei sehr großen Räumen, insbesondere Montage- oder Lagerhallen, ist die Empfindlichkeit des Detektors oft nicht ausreichend, um die gesamte Raumtiefe zu erfassen. Aber auch bei winklig zueinander angeordneten Räumen, die in verschiedenen Richtungen liegen, wie das bei Lagerhallen oder Korridoren oft der Fall ist, genügt ein einzelner Detektor nicht, um den gesamten Raum zu überwachen.If one assumes that a detector of the type described is mounted on a wall in such a way that the axis of the cylindrical collecting optics is aligned vertically, then it can at least extend the plane horizontally in front of it to the wall to which it is attached, monitor. In very large rooms, especially assembly or storage halls, the sensitivity of the detector is often not sufficient to detect the entire depth of the room. But even in rooms that are arranged at an angle to each other and that lie in different directions, as is often the case with warehouses or corridors, a single detector is not sufficient to monitor the entire room.

Aus der DE-GM 8 532 796 ist zwar ein drehbewegliches Empfängergehäuse bekannt, das entsprechend gelagert auf einem als Befestigungssockel dienenden Grundgehäuse montiert ist. Doch auch dieser Empfänger ist nicht geeignet, um in zwei oder mehr Richtungen eine Raumüberwachung vorzunehmen.From DE-GM 8 532 796 a rotatable receiver housing is known, which is mounted on a base housing serving as a mounting base. However, this receiver is also not suitable for monitoring rooms in two or more directions.

In der FR-A-2 492 113 ist eine Anordnung beschrieben, bei der ein Sender und ein Empfänger in verschiedene horizontale Winkelstellungen zueinander drehbar an einem Mast befestigt sind. Durch das Aufstellen mehrerer Masten mit je einem Empfänger und einem Sender wird eine zaunartige Barriere gebildet, indem jeweils der Empfänger an einem Mast das Signal vom Sender eines benachbarten Mastes empfängt und über seinen Sender an den Empfänger des nächsten Mastes weitergibt. Bei einer Unterbrechung der so gebildeten Kette wird Alarm ausgelöst. Durch entsprechende Maßnahmen ist es zwar möglich den eingeschlossenen zu schützenden Bereich zu vergrößern aber nicht den vor einem Empfänger liegenden, vom Erfassungswinkel der Empfängeroptik abhängigen Bereich.FR-A-2 492 113 describes an arrangement in which a transmitter and a receiver are attached to a mast so that they can be rotated in different horizontal angular positions relative to one another. By setting up several masts, each with a receiver and a transmitter, a fence-like barrier is formed in that the receiver on one mast receives the signal from the transmitter of an adjacent mast and forwards it via its transmitter to the receiver of the next mast. If the chain formed in this way is interrupted, an alarm is triggered. Appropriate measures make it possible to enlarge the area to be protected, but not the area in front of a receiver, which is dependent on the detection angle of the receiver optics.

Ausgehend vom Oberbegriff des Anspruchs 1 ist es Aufgabe der Erfindung, einen als Schalter wirkenden Passiv-Infrarotdetektor so zu gestalten, daß mit möglichst geringem Materialaufwand ein einfach zu handhabendes Gerät geschaffen wird, dessen Erfassungswinkel gegenüber bekannten Geräten wesentlich erweitert ist.Starting from the preamble of claim 1, it is an object of the invention to design a passive infrared detector acting as a switch so that an easy-to-use device is created with the least possible material expenditure, the detection angle of which is significantly expanded compared to known devices.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale gelöst. Zweckmäßige Ausgestaltungen und Weiterbildungen des Erfindungsgegenstandes sind in den Unteransprüchen genannt.This object is achieved by the features characterized in claim 1. Appropriate refinements and developments of the subject matter of the invention are mentioned in the subclaims.

Da mehrere zueinander verschwenkbar angeordnete Detektoren zu einem gemeinsamen Gerät vereinigt sind, ist es möglich, deren Erfassungsoptik so auszurichten, daß insgesamt ein wesentlich größerer Erfässungswinkel erreicht wird. Die Größe des insgesamt erreichbaren Erfassungswinkel ist vom maximalen Erfassungswinkel einer Erfassungsoptik in einer horizontalen bzw. vertikalen Ebene sowie von der erfolgten Schwenkung zweier Erfassungsoptiken zueinander in dieser Ebene abhängig.Since several detectors which are arranged so as to be pivotable with respect to one another are combined to form a common device, it is possible to align their detection optics in such a way that a substantially larger detection angle is achieved overall. The size of the detection angle that can be achieved in total depends on the maximum detection angle of a detection lens in a horizontal or vertical plane and on the pivoting of two detection lenses towards one another in this plane.

Im Prinzip ist es möglich, die Detektorgehäuse mit der von ihnen aufgenommenen Erfassungsoptik durch Anbringen entsprechender Gelenke so auszubilden, daß sie zueinander verschwenkbar sind. Das setzt jedoch Gehäuse voraus, die unterschiedlich gestaltet sein müssen, je nachdem ob ein einzelnes Gehäuse oder mehrere miteinander verbundene Gehäuse zum Einsatz kommen sollen. Zur Vermeidung der Herstellung von Sondergehäusen ist es deshalb von Vorteil, die Detektorgehäuse jeweils mit einer Halterung zu verbinden, an der mindestens zwei Aufnahmeteile befestigt sind, von denen jedes ein Detektorgehäuse vorhandener Bauart aufnehmen kann. Ein Verschwenken der Detektorgehäuse zueinander erfolgt dabei durch Verschwenken der Aufnahmeteile gegenüber einem ortsfesten Träger.In principle, it is possible to design the detector housing with the detection optics accommodated by them by attaching corresponding joints such that they can be pivoted relative to one another. However, this requires enclosures, which must be designed differently, depending on whether a single enclosure or several interconnected enclosures are to be used. To avoid the production of special housings, it is therefore advantageous to connect the detector housings each with a holder to which at least two receiving parts are fastened, each of which can accommodate a detector housing of an existing type. The detector housings are pivoted relative to one another by pivoting the receiving parts relative to a stationary support.

Durch entsprechende Ausbildung der Aufnahmeteile mit Gelenken zum Verschwenken, ggf. auch mit entsprechenden Aussparungen für die Zuleitungen, sowie mit Rast- oder Klemmelemente zur Fixierung der Detektorgehäuse in ihrer Lage gelingt ein modularer Aufbau. Dabei können Detektoren bekannter Bauart ohne Schwierigkeiten in die Aufnahmeteile eingesetzt und in die entsprechende Richtung justiert werden.By appropriate design of the receiving parts with joints for pivoting, if necessary also with corresponding recesses for the feed lines, as well as with locking or Clamping elements for fixing the detector housing in their position succeed in a modular structure. Detectors of known design can be inserted into the receiving parts without difficulty and adjusted in the corresponding direction.

Eine weitere zweckmäßige Ausgestaltung der Erfindung sieht vor, die Aufnahmeteile entlang des Trägers in verschiedenen Ebenen anzuordnen, wobei deren Abstand so gewählt ist, daß bei einer Schwenkung im vorgesehenen Bereich keine gegenseitige Behinderung stattfindet. Im Prinzip ist es zwar möglich zwei oder auch mehr Gehäuse in einer gemeinsamen horizontalen Ebene anzuordnen, doch ist dann der Schwenkwinkel relativ begrenzt, da sich die Gehäuse gegenseitig im Wege stehen. Ein horizontales Versetzen der Gehäuse ermöglicht diesen in Prinzip ein Schwenken bis zu 360 °.A further expedient embodiment of the invention provides for the receiving parts to be arranged along the carrier in different planes, the spacing of which is selected such that there is no mutual hindrance when pivoting in the area provided. In principle, it is possible to arrange two or more housings in a common horizontal plane, but the pivoting angle is then relatively limited, since the housings are in the way of one another. In principle, a horizontal displacement of the housing enables them to swivel up to 360 °.

Eine wesentliche Einsparung läßt sich weiterhin erzielen, daß man die Detektorgehäuse entspechend den bisherigen Ausführungen unverändert beläßt, diesen jedoch nur noch die Teile zuordnet, die zur Erweiterung des Erfassungswinkels benötigt werden, also insbesondere die Erfassungsoptik. Die Teile jedoch, die zur Aufbereitung des von der Erfassungsoptik abgegebenen elektrischen Signals dienen, und für das gesamte Gerät nur einmal benötigt werden, bringt man zweckmäßigerweise in einem Zentralgehäuse unter, das z.B. auch die Stromversorgung enthalten kann.A significant saving can also be achieved by leaving the detector housing unchanged in accordance with the previous versions, but only assigning the parts that are required to expand the detection angle, in particular the detection optics. However, the parts that are used to process the electrical signal emitted by the detection optics and that are only required once for the entire device are advantageously accommodated in a central housing, which e.g. can also contain the power supply.

Das Zentralgehäuse kann im Prinzip an beliebiger Stelle in angemessener Entfernung zu den Detektorgehäusen befestigt sein, läßt sich jedoch besonders vorteilhaft auch in den Träger integrieren. Ein als Träger dienendes Zentralgehäuse kann weiterhin auch so gestaltet werden, daß es die Detektorgehäuse mitintegriert, so daß ein gemeinsames Gehäuse entsteht, doch ist das natürlich eine Sonderanfertigung, die eine entsprechende Stückzahl voraussetzt.In principle, the central housing can be fastened at any point at a suitable distance from the detector housings, but can also be integrated particularly advantageously into the carrier. A serving as a carrier Central housing can also be designed so that it integrates the detector housing, so that a common housing is created, but this is of course a special order, which requires a corresponding number of pieces.

Eine weitere zweckmäßige Ausgestaltung der Erfindung sieht vor, jedes Aufnahmeteil, das ggf. auch als Detektorgehäuse ausgebildet sein kann, an dem Träger mit Gelenken zu befestigen. Dabei ist ein Drehgelenk für eine Verschwenkung in einer Horizontalen und ein Kippgelenk für eine Verschwenkung in einer vertikalen Ebene vorgesehen. Durch diese Kombination kann der Erfassungswinkel des Detektors sowohl in horizontaler als auch in vertikaler Ebene erweitert werden.A further expedient embodiment of the invention provides for each receiving part, which can optionally also be designed as a detector housing, to be fastened to the carrier with joints. A swivel joint for swiveling in a horizontal plane and a tilt joint for swiveling in a vertical plane are provided. This combination enables the detection angle of the detector to be expanded both in the horizontal and in the vertical plane.

Das Drehgelenk kann dabei so ausgebildet sein, daß es den Träger oder das Zentralgehäuse ringartig umfaßt und einen Schwenkwinkel von mindestens 90 ° vorzugsweise 180 ° ermöglicht. Zur Begrenzung des Schwenkwinkels, der nicht über 360 ° hinausgehen sollte, weil zwischen den Aufnahmeteilen Leitungen geführt sind, die abreißen könnten, ist ein Anschlag vorgesehen.The swivel joint can be designed such that it encompasses the carrier or the central housing in a ring-like manner and enables a swivel angle of at least 90 °, preferably 180 °. A stop is provided to limit the swivel angle, which should not exceed 360 °, because lines are led between the receiving parts that could tear off.

Soweit die einzelnen Gelenke entsprechend groß ausgebildet sind, bzw. entsprechend breite Gelenkflächen eine ausreichende Friktion aufeinander ausüben, genügt diese um die Aufnahmeteile in ihrer jeweiligen Lage zu halten. Sicherer ist es jedoch, die Gelenke mit entsprechenden federnden Raststufen zu versehen, die ein ungewolltes Verdrehen aus einer vorgegebenen Winkelstellung verhindern.Insofar as the individual joints are of a correspondingly large size or correspondingly wide joint surfaces exercise sufficient friction on one another, this is sufficient to hold the receiving parts in their respective positions. It is safer, however, to provide the joints with corresponding resilient locking steps that prevent unwanted twisting from a predetermined angular position.

Für eine bequeme Montage des Detektors vorort sowie im Servicefall ist es von Vorteil, wenn die verschiedenen Gehäuse mit den von ihnen aufgenommenen Bauelementen Baueinheiten bilden, die schnell zusammenfügbar sind. Zu diesem Zweck sind die elektrischen Verbindungen über Steckkontakte geführt. Von der Leistungsfähigkeit der einzelnen Detektoren aber auch von den Bedürfnissen der Anwender hängt es ab, wieviel Detektorgehäuse im Normalfall mit einem Zentralgehäuse zu verbinden sind. Die vorzusehende Zahl der Steckeingänge am Zentralgehäuse muß sich danach richten.For a convenient installation of the detector on site and in the event of service, it is advantageous if the various housings, together with the components they contain, form units that can be quickly assembled. For this purpose, the electrical connections are made via plug contacts. The number of detector housings to be connected to a central housing normally depends on the performance of the individual detectors but also on the needs of the users. The number of plug inputs to be provided on the central housing must be based on this.

Zweckmäßig ist es, die Steckereingänge des Zentralgehäuses an dessen Gehäusemantel zu befestigen und die von den Detektrogehäusen kommenden Steckerausgänge an freien Enden von flexiblen elektrischen Leitungen beweglich anzuordnen.It is expedient to fasten the connector inputs of the central housing to its housing jacket and to arrange the connector outputs coming from the detector housings in a movable manner at free ends of flexible electrical lines.

Eine komfortablere aber auch kostspieligere Lösung sieht vor, die Steckereingänge ebenso wie die Steckerausgänge am jeweiligen Gehäusemantel der Gehäuse zu befestigen und so aufeinander abzustimmen, daß beim Anfügen eines zusätzlichen Detektorgehäuses gleichzeitig auch eine elektrische Kontaktierung erfolgt. Die elektrischen Verbindungsleitungen werden dabei vorzugsweise innerhalb eines gemeinsamen Gehäuseteils, in der Regel dem Zentralgehäuse fest verlegt.A more convenient but also more expensive solution provides for the connector inputs as well as the connector outputs to be fastened to the respective housing jacket of the housing and to be coordinated with one another in such a way that when an additional detector housing is attached, electrical contact is also made. The electrical connecting lines are preferably fixed within a common housing part, usually the central housing.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in the drawings and are described in more detail below.

Es zeigen:

Figur 1:
Einen Detektor mit zwei im Winkel von 180 ° zueinander angeordneten Detektorgehäusen von der Seite gesehen,
Figur 2:
die Anordnung nach Figur 1 von oben gesehen,
Figur 3:
einen Detektor mit zwei im Winkel von 180 ° zueinander angeordneten Aufnahmeteilen mit jeweils eingepaßten Detektorgehäusen von der Seite gesehen,
Figur 4:
den Erfassungsbereich von zwei horizontal im rechten Winkel zueinander angeordneter Detektorgehäuse von der Seite gesehen (Figur 4a) und von oben gesehen (Figur 4b),
Figur 5:
den Erfassungsbereich von zwei horizontal gesehen im gleichen Winkel zueinander angeordneten Detektorgehäusen, die jedoch vertikal zueinander gekippt sind, von der Seite (Figur 5a) und von oben gesehen (Figur 5b),
Figur 6:
den Erfassungsbereich von zwei entsprechenden Figuren 1 bis 3, im Winkel von 180 ° horizontal versetzten Detektorgehäusen, von der Seite gesehen, (Figur 6a) und von oben gesehen (Figur 6b).
Show it:
Figure 1:
A detector with two detector housings arranged at an angle of 180 ° to one another seen from the side,
Figure 2:
the arrangement according to Figure 1 seen from above,
Figure 3:
a detector seen from the side with two receiving parts arranged at an angle of 180 ° to one another, each with fitted detector housings
Figure 4:
the detection area of two detector housings arranged horizontally at right angles to one another seen from the side (FIG. 4a) and seen from above (FIG. 4b),
Figure 5:
the detection area of two detector housings arranged horizontally at the same angle to one another, but which are tilted vertically to one another, seen from the side (FIG. 5a) and from above (FIG. 5b),
Figure 6:
the detection range of two corresponding figures 1 to 3, horizontally offset detector housings at an angle of 180 °, seen from the side (FIG. 6a) and seen from above (FIG. 6b).

Wie Figur 1 zeigt, gehören zum Infrarotdetektor zwei Detektorgehäuse 1 mit einem Fenster 3, hinter dem sich die Erfassungsoptik verbirgt, die einen begrenzten Erfassungsbereich besitzt. Da die beiden Detektorgehäuse 1 um 180° zueinander versetzt angeordnet sind, wird der Gesamterfassungsbereich verdoppelt. Die beiden Detektorgehäuse 1 sind über Aufnahmeteile 4 durch Kippgelenke 6 mit einem Träger 5 verbunden. Die Kippgelenke 6 ermöglichen ein Schwenken der Detektorgehäuse in einer vertikalen Ebene.As FIG. 1 shows, the infrared detector includes two detector housings 1 with a window 3, behind which hides the detection optics, which have a limited detection area. Because the two detector housings 1 are offset by 180 ° to each other, the total detection area is doubled. The two detector housings 1 are connected to a support 5 via receiving parts 4 by means of tilting joints 6. The tilt joints 6 enable the detector housing to be pivoted in a vertical plane.

Der Träger 5 ist segmentiert, wobei einzelne Segmente 7 als Drehgelenk für das Detektorgehäuse 1 wirken, und durch Verbindungselemente 8 zusammengehalten werden. Die Drehgelenke 7 einerseits und die Verbindungselemente 8 andererseits sind mit entsprechenden Nuten und Aussparungen versehen, die ein formschlüssiges Ineinandergreifen ermöglichen und die Drehbeweglichkeit der Drehgelenke 7 sicherstellen. Ein hier nicht weiter dargestellter Anschlag dient allerdings dazu, daß ein Schwenken des Detektorgehäuses in der Horizontale auf maximal 360° beschränkt wird. Durch diese Maßnahme wird verhindert, daß die hier nicht dargestellten Verbindungsleitungen, die ohnehin flexibel ausgestaltet sein müssen, nicht überdreht werden.The carrier 5 is segmented, wherein individual segments 7 act as a pivot joint for the detector housing 1 and are held together by connecting elements 8. The swivel joints 7 on the one hand and the connecting elements 8 on the other hand are provided with corresponding grooves and recesses which enable a form-fitting engagement and ensure the rotational mobility of the swivel joints 7. A stop, not shown here, however, serves to limit the horizontal pivoting of the detector housing to a maximum of 360 °. This measure prevents the connecting lines, which are not shown here and which have to be flexible anyway, are not over-tightened.

Es ist eine Frage der jeweiligen Stückzahl, ob es sich lohnt, die Detektorgehäuse 1 der speziellen Anforderung bezüglich eines erweiterten Erfassungsbereiches anzupassen oder in ihrem bereits vorliegenden Aufbau zu übernehmen. Bei einer speziellen Anpassung können die Aufnahmeteile 4 in das Detektorgehäuse 1 integriert werden. Hierbei wäre natürlich eine beliebige Anzahl von Alternativen zu dem in Figur 1 abgebildeten Aufbau denkbar. Auch bei der Wahl der Gelenke ist man keineswegs an die hier vorgeschlagene Ausführungsform gebunden, da die Gelenke lediglich eine horizontale und vertikale Verschwenkung der Detektorgehäuse 1 ermöglichen sollen, was weitgehend mit bekannten Kugelgelenken Kardangelenken auch anderen Gelenkarten erreichbar ist. Auch die Verbindung der Detektorgehäuse 1 mit dem Träger 5 kann auf vielfältige Weise so erfolgen, daß eine sichere Führung der Verbindungsleitungen gewährleistet ist. Eine dieser Möglichkeiten besteht darin, im Gelenkbereich, in dem auch die Leitungen geführt werden, einen Faltenbalg anzuordnen, der das Gehäuse praktisch flexibel macht und die innenliegenden Teile schützt. Eine solche Anordnung ist z.B. aus der DE-GM 8 534 063 bekannt.It is a question of the respective number of pieces, whether it is worth adapting the detector housing 1 to the special requirement with regard to an extended detection range or to adopt it in its existing structure. With a special adaptation, the receiving parts 4 can be integrated into the detector housing 1. Any number of alternatives to the structure shown in FIG. 1 would of course be conceivable here. When choosing the joints, one is in no way bound to the embodiment proposed here, since the joints merely pivot the detector housing 1 horizontally and vertically should enable what is largely achievable with known ball joints universal joints other types of joints. The connection of the detector housing 1 to the carrier 5 can also be carried out in a variety of ways in such a way that the connecting lines are reliably guided. One of these options is to arrange a bellows in the joint area in which the cables are also routed, which makes the housing practically flexible and protects the internal parts. Such an arrangement is known for example from DE-GM 8 534 063.

In Figur 3 ist eine Alternative zu der Ausführungsform nach Figur 1 dargestellt, die es ermöglicht, bereits vorhandene Detektorgehäuse 1 ohne nennenswerte Änderung für die erfindungsgemäße Anordnung zu verwenden. Hierzu sind die Aufnahmeteile 4 als Schalen ausgeführt, die wiederum über ein Kippgelenk 6 und ein Drehgelenk 7 mit dem Träger 5 mechanisch verbunden sind. Die Schalenform des Aufnahmeteils 4 ist so gestaltet, daß man ein Detektorgehäuse 1 bereits verwendeter Bauart einsetzen kann. Wegen ihrer vielfältigen aber bekannten Gestaltungsmöglichkeit in der Zeichnung nicht näher dargestellte Klemm- oder Halteelemente sorgen dafür, daß das Detektorgehäuse 1 nicht aus dem Aufnahmeteil 4 herausfallen kann.FIG. 3 shows an alternative to the embodiment according to FIG. 1, which makes it possible to use existing detector housings 1 for the arrangement according to the invention without any significant change. For this purpose, the receiving parts 4 are designed as shells, which in turn are mechanically connected to the carrier 5 via a tilt joint 6 and a swivel joint 7. The shell shape of the receiving part 4 is designed so that a detector housing 1 of the type already used can be used. Because of their diverse but known design options in the drawing not shown clamping or holding elements ensure that the detector housing 1 can not fall out of the receiving part 4.

Das Aufnahmeteil 4 ist wiederum so gestaltet, daß mit Hilfe des Kippgelenkes 6 eine Schwenkung des Detektorgehäuses in einer vertikalen und mit Hilfe des Drehgelenkes 7 in einer horizontalen Ebene ermöglicht ist. Das Drehgelenk 7 besteht in der dargestellten Ausführungsform aus einer ringartigen Schelle, die in einer entsprechenden Nut des Trägers 5 geführt ist. Ebenso wie bei der Ausführungsform nach Figur 1 sind die beiden Detektorgehäuse 1 stufig so zueinander versetzt, daß sich ihr Schwenkweg auf verschiedenen horizontalen Ebenen bewegt und somit keine gegenseite Behinderung entsteht.The receiving part 4 is in turn designed in such a way that the tilting joint 6 enables the detector housing to be pivoted in a vertical plane and with the rotating joint 7 in a horizontal plane. In the embodiment shown, the swivel joint 7 consists of a ring-like clamp which is guided in a corresponding groove in the carrier 5. Just as in the embodiment according to FIG. 1, the two detector housings 1 are offset from one another in stages so that their swivel path moved on different horizontal levels and thus no mutual disability arises.

Wenn man davon ausgeht, daß die erfindungsgemäße Detektoranordnung mehrere Detektoren umfaßt, von denen jeder einen selbständigen elektronischen Schalter darstellt, so kann eine elektrische Vereinigung darin bestehen, daß die einzelnen Schalter zueinander parallel liegen und somit jeder Schalter für sich einen entsprechenden Verbraucher, vorzugsweise eine Beleuchtungseinrichtung einschalten kann. Das bedeutet aber, daß in jedem Detektorgehäuse 1 nicht nur eine Aufnahmeoptik sondern auch die erforderliche Elektronik zur Auswertung der optischen Signale enthalten sein muß. Bereits bei zwei Einzeldetektoren, sicher aber bei mehreren ist es wirtschaftlich zweckmäßig, den Hauptteil der Elektronik, insbesondere auch die Stromversorgung in einem Zentralgehäuse 2 zusammenzufassen.If it is assumed that the detector arrangement according to the invention comprises a plurality of detectors, each of which represents an independent electronic switch, then an electrical combination can consist in the individual switches being parallel to one another and thus each switch having a corresponding consumer, preferably a lighting device can turn on. However, this means that each detector housing 1 must not only contain an optical recording system, but also the electronics required for evaluating the optical signals. Already with two individual detectors, but certainly with several, it is economically expedient to combine the main part of the electronics, in particular also the power supply, in a central housing 2.

Bei der erfindungsgemäßen Anordnung kann das auf einfache Weise dadurch geschehen, daß die Bauteile für die gemeinsame Elektronik, die in diesem Fall auch einen gemeinsamen Schalter bilden, in einem Zentralgehäuse 2 untergebracht werden. In vorteilhafter Weise wird man hierzu einen Teil des segmentierten Trägers 5 verwenden, und vorzugsweise ein ortsfestes Segment wählen, da sich hierdurch der mechanische Aufbau wesentlich vereinfächt.In the arrangement according to the invention, this can easily be done by accommodating the components for the common electronics, which in this case also form a common switch, in a central housing 2. Advantageously, part of the segmented carrier 5 will be used for this purpose, and preferably a fixed segment will be selected, since this considerably simplifies the mechanical structure.

Es sei noch auf einige Details eingegangen, von deren Darstellung in den Figuren ebenfalls abgesehen wurde, weil ihre Gestaltung bekannt ist und keine Notwendigkeit besteht, eine der möglichen Alternativen zu favoritisieren. So wird man die Gelenke 6,7 vorzugsweise als Rastgelenke ausstatten, um ein ungewolltes Verdrehen oder Schwenken zu vermeiden. Eine Friktion durch Haftreibung bietet hierzu keine ausreichende Gewähr.A few details will be discussed, the illustration of which has also been omitted in the figures because their design is known and there is no need to favor one of the possible alternatives. So you will equip the joints 6, 7 preferably as locking joints in order to avoid unwanted twisting or swiveling. Friction caused by static friction does not offer a sufficient guarantee for this.

Im Rahmen der elektrischen Verbindung der in verschiedenen Detektorgehäusen 1 untergebrachten elektrischen Bauelemente ist besonders auf eine einfache Montage und auch auf Servicefreundlichkeit zu achten. Die hierbei zu stellenden Anforderungen werden am besten durch eine Modultechnik erfüllt, bei der entsprechend Figur 3 als Module gestaltete Detektorgehäuse 1 in der jeweils benötigten Anzahl in entsprechende Aufnahmeteile 4 eingesetzt werden können und dabei auch die elektrische Verbindung hergestellt wird. Der Anschluß kann über ein Kabel erfolgen, das an seinem freien Ende mit einem Stecker versehen ist, wobei das Gegenstück des Steckers am Gehäusemantel des Zentralgehäuses 2 befestigt sein kann. Die Steckverbindung kann aber auch innerhalb des Aufnahmeteils 4 vollzogen werden, wenn in diesem eine Steckvorrichtung eingebaut ist, die beim Einbringen des Detektorgehäuses 1 formschlüssig in einen an diesem angebrachten Steckanschluß eingreift.In the context of the electrical connection of the electrical components accommodated in different detector housings 1, particular attention must be paid to simple installation and also ease of servicing. The requirements to be made here are best met by a module technology in which the detector housings 1 designed as modules in accordance with FIG. 3 can be inserted into the corresponding receiving parts 4 in the respectively required number, and the electrical connection is also established in the process. The connection can be made via a cable which is provided with a plug at its free end, and the counterpart of the plug can be fastened to the housing jacket of the central housing 2. However, the plug connection can also be carried out within the receiving part 4 if a plug device is installed in it, which engages in a form-fitting manner in a plug connection attached to the detector housing 1 when the detector housing 1 is introduced.

Die Figuren 4 bis 6 zeigen noch einige Anwendungsalternativen, die mit der erfindungsgemäßen Detektorvorrichtung lösbar sind. Hierbei sollen die Winkel α₁ und α₂ Erfassungswinkel kennzeichnen, die sich jeweils in einer horizontalen Ebene erstrecken, während die Winkel β₁ und β₂ auf vertikale Ebenen bezogen sind. Zur Demonstration sind sowohl die Winkel α, wie auch die Winkel β kleiner dargestellt, als sie bei üblichen Geräten sind. Es wurde bereits darauf hingewiesen, daß bekannte Geräte einen horizontalen Erfassungswinkel von bis zu 180 ° erreichen. Dennoch kann grundsätzlich mit mehreren in verschiedenen Detektorgehäusen 1 angeordneten optischen Aufnehmern eine Erweiterung des jeweiligen Erfassungswinkels erzielt werden. Bei der Wirkung der Detektoren als Ein-Aus-Schalter bleibt eine Überschneidung der Erfassungswinkel ohne Bedeutung, da der Detektor insgesamt gesehen nicht mehr als Einschalten kann, es also gleichgültig bleibt, von welchem Aufnehmer das Schaltsignal ausgeht, welcher also eine Störung detektiert.Figures 4 to 6 show some alternative applications that can be solved with the detector device according to the invention. The angles α₁ and α₂ are intended to identify detection angles which each extend in a horizontal plane, while the angles β₁ and β₂ are related to vertical planes. For the demonstration, both the angles α and the angles β are shown smaller than they are in conventional devices. It has already been pointed out that known devices achieve a horizontal detection angle of up to 180 °. Nevertheless, an expansion of the respective detection angle can in principle be achieved with a plurality of optical pickups arranged in different detector housings 1. When the detectors act as an on-off switch, there remains an overlap of the Detection angle is irrelevant, since the detector as a whole can no longer be switched on, so it does not matter which sensor the switching signal originates from, which therefore detects a fault.

Figur 4 zeigt eine Anordnung mit zwei Detektorgehäusen 1 und einem als Träger 5 dienenden Zentralgehäuse 2, die im rechten Winkel zueinander angeordnet sind, und die z.B. in einer Ecke senkrecht aufeinanderstoßender Korridore montiert werden könnte. Im Vordergrund steht hier das Ziel den sich in horizontalen Ebenen erstreckenden Aufnahmewinkel α durch die Winkel α₁+ α₂ zu vergrößern.Figure 4 shows an arrangement with two detector housings 1 and a central housing 2 serving as a carrier 5, which are arranged at right angles to one another and which e.g. could be installed in a corner of vertically adjoining corridors. In the foreground is the goal to enlarge the horizontal angle α by the angle α₁ + α₂.

Demgegenüber soll die Anordnung nach Figur 5 eine Vergrößerung des vertikalen Aufnahmewinkels β ermöglichen, was dadurch erreicht wird, daß die beiden Detektorgehäuse 1 vertikal in eine Ebene gedreht werden, in ihrer horizontalen Ausrichtung jedoch verschieden sind. Solche Anordnungen verwendet man vorzugsweise dort, wo ein Fernbereich und ein Nahbereich erfaßt werden sollen.In contrast, the arrangement according to FIG. 5 is intended to enable an enlargement of the vertical recording angle β, which is achieved in that the two detector housings 1 are rotated vertically in one plane, but their horizontal orientation is different. Such arrangements are preferably used where a far area and a near area are to be detected.

Schließlich ist in Figur 6 eine Anordnung dargestellt, die dem Beispiel der Figuren 1 bis 3 entspricht, und wiederum eine Erweiterung des sich in der Horizontalen erstreckenden Wickels α zum Ziel hat. In der Mitte eines sehr großen Raumes oder eines entsprechend langen Korridors angeordnet, ermöglicht er in beiden Richtungen eine Infrarotquelle zu ermitteln.Finally, FIG. 6 shows an arrangement which corresponds to the example of FIGS. 1 to 3 and which in turn has the aim of expanding the winding α which extends in the horizontal direction. Arranged in the middle of a very large room or a correspondingly long corridor, it enables an infrared source to be determined in both directions.

Claims (14)

  1. Switch constructed as a passive infrared detector having a housing in which a window transparent to the radiation is provided, behind which there is an optics unit which has a detection angle (α, β) of less than 360° in one plane and focuses the radiation onto an optical sensor, and at least one joint is arranged in the housing itself or connected to the latter, which joint enables pivoting of the optics unit in a vertical and/or horizontal plane to a fixed carrier, characterized in that at least two detector housings (1), each accommodating a detection optics unit, are arranged so as to be mutually pivotable and the second detection optics unit can thereby be aligned in such a way that it covers a region not detected by the detection angle (α, β) of the first detection optics unit, and in that this region can be adjusted in such a way that the horizontal detection angle (α) and/or the vertical detection angle (β) is expanded by means of the detectors unified to form a common device.
  2. Switch according to Claim 1, characterized in that the detector housings (1) are connected in each case to a mounting to which at least two accommodation pieces (4) are fastened, each of which accommodates or forms a detector housing (1) and carries out the mutual pivoting of the detector housings (1) by pivoting the accommodation pieces (4) with respect to the fixed carrier (5).
  3. Switch according to one of the preceding claims, characterized in that each accommodation piece (4) has joints (6, 7) for pivoting and, as far as necessary, is provided with cutouts for the leads, and latching or clamping elements or a corresponding positive fixing secure the detector housing (1) in its position.
  4. Switch according to one of the preceding claims, characterized in that the accommodation pieces (4) lie along the carrier (5) in various planes whose spacing is chosen in such a way that no mutual hindrance takes place in the event of pivoting in the region foreseen.
  5. Switch according to one of the preceding claims, characterized in that the detector housings (1) in each case contain parts necessary for expanding the detection angle (α or β), especially the detection optics unit, and a central housing (2) contains common parts, preferably for the electronic signal processing and/or the power supply.
  6. Switch according to one of the preceding claims, characterized in that the central housing (2) is fastened to the carrier (5), preferably integrated into the latter.
  7. Switch according to one of the preceding claims, characterized in that the central housing (2) is integrated with the detector housings (1) in a common housing.
  8. Switch according to one of the preceding claims, characterized in that each accommodation piece (4) or detector housing (1) on the carrier (5) is equipped with a tilting joint (6) for pivoting in a horizontal plane and with a pivoting joint (7) for pivoting in a vertical plane.
  9. Switch according to one of the preceding claims, characterized in that the pivoting joint (7) encloses the carrier or the central housing (2) in a ring-like manner and the pivoting angle is at least 90°, preferably 180°, and a stop is provided for limiting the pivoting angle.
  10. Switch according to one of the preceding claims, characterized in that at least one of the joints (6, 7) is provided with latching steps which prevent unintentional twisting of the joints (6, 7) out of a predetermined angular position.
  11. Switch according to one of the preceding claims, characterized in that the various housings (1, 2), with the components accommodated by them, form constructional units which can be joined together in a modular technique and the electrical connection of the components contained in the detector housings (1) to the components contained in the central housing (2) is carried out via plugs.
  12. Switch according to one of the preceding claims, characterized in that the central housing (2) is provided with as many plug inputs as the maximum number of detector housings (1) which can be connected.
  13. Switch according to one of the preceding claims, characterized in that the plug inputs of the central housing (2) are fastened to the housing jacket and the plug outputs coming from the detector housings (1) are at the free end of a flexible electrical lead.
  14. Switch according to one of the preceding claims except Claim 13, characterized in that both plug inputs and plug outputs are fastened to the respective housing jacket and are matched to each other in such a way that, when joining on an additional detector housing (1), an electrical contact is also simultaneously achieved and the electrical connecting lead is laid in a fixed manner, preferably inside a common housing part.
EP88121616A 1987-12-29 1988-12-23 Radiation-sensitive switch Expired - Lifetime EP0323621B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3744399 1987-12-29
DE3744399A DE3744399C2 (en) 1987-12-29 1987-12-29 Radiation sensitive switch

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EP0323621A2 EP0323621A2 (en) 1989-07-12
EP0323621A3 EP0323621A3 (en) 1990-05-16
EP0323621B1 true EP0323621B1 (en) 1995-02-22

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AT (1) ATE118911T1 (en)
DE (2) DE3744399C2 (en)

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NL8700627A (en) * 1987-03-17 1988-10-17 Philips Nv METHOD FOR CONTROLLING A LIQUID CRYSTAL DISPLAY AND ASSOCIATED DISPLAY.
NL9101431A (en) * 1991-08-23 1993-03-16 Bellis Freddy Lucky DETECTION UNIT.
DE4301490A1 (en) * 1993-01-21 1994-07-28 Insta Elektro Gmbh & Co Kg Passive infrared system reacting to heat movement
DE19520241A1 (en) * 1995-06-02 1996-12-05 Abb Patent Gmbh Switching device that enables automatic actuation of a lighting switch
DE19534564C2 (en) * 1995-09-18 1998-12-24 Andreas Toeteberg Procedure for the transfer of information between alarm devices or other system devices of an alarm system
DE19645184A1 (en) * 1996-11-02 1998-05-07 Abb Patent Gmbh Switching device for staircase lighting
JP2000213985A (en) 1999-01-26 2000-08-04 Optex Co Ltd Passive infrared sensor
DE10033431A1 (en) * 2000-07-12 2002-01-24 Sick Ag sensor
DE10060170B4 (en) * 2000-12-04 2011-06-16 Insta Elektro Gmbh Passive infrared motion detectors
ITPD20020074U1 (en) * 2002-11-12 2004-05-13 Zancan Gianfranco E C Sas INFRARED DETECTOR, PARTICULARLY FOR EXTERIORS
GR20100100257A (en) * 2010-05-03 2012-01-17 Γεωργιος Νικολαου Χλαπουτακης Peripheral device connectable to domestic alarm systems and aiming at the complete protection of doors or windows via magnetic switches and movement-sensing elements as well as at the distinction between openings attempted from the interior or the exterior of the house
JP2014099157A (en) * 2012-10-19 2014-05-29 Optex Co Ltd Intrusion detection device
DE102020128092A1 (en) 2020-10-26 2022-04-28 Markus Giehl Motion detector with multiple motion sensors

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FR2492113A1 (en) * 1980-10-10 1982-04-16 Voltam Ind Support module for radiation barrier intruder alarm - has receiver and transmitter mounted on swivelling arms which are attached to common support
EP0113468B1 (en) * 1983-01-05 1990-07-11 Marcel Dipl.-Ing. ETH Züblin Optical device for deflecting optical rays
DE8532796U1 (en) * 1985-11-21 1986-01-09 Gebrüder Merten GmbH & Co KG, 5270 Gummersbach Contactless switch
DE8534063U1 (en) * 1985-12-04 1986-01-16 Gebrüder Merten GmbH & Co KG, 5270 Gummersbach Non-contact switch
DE3933796C1 (en) * 1989-10-10 1991-05-08 Paul Hochkoepper Gmbh & Co Kg, 5880 Luedenscheid, De IR alarm with tiltable housing - maintaining reception plane at right angles to observation plane
DE4036342C1 (en) * 1990-11-15 1992-03-26 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De Passive IR monitoring system - comprises stack of IR detectors distributed on column at various angles to cover complete field without gaps

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DE3744399A1 (en) 1989-07-13
DE3744399C2 (en) 1997-03-13
EP0323621A2 (en) 1989-07-12
DE3853148D1 (en) 1995-03-30
EP0323621A3 (en) 1990-05-16
ATE118911T1 (en) 1995-03-15

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