EP3239944B1 - Device for detecting the position of a magnet - Google Patents

Device for detecting the position of a magnet Download PDF

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Publication number
EP3239944B1
EP3239944B1 EP17155551.9A EP17155551A EP3239944B1 EP 3239944 B1 EP3239944 B1 EP 3239944B1 EP 17155551 A EP17155551 A EP 17155551A EP 3239944 B1 EP3239944 B1 EP 3239944B1
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EP
European Patent Office
Prior art keywords
magnet
closure device
movable closure
magnetic field
status
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EP17155551.9A
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German (de)
French (fr)
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EP3239944A1 (en
Inventor
Stephan Dufhues
Simon Kolks
Elmar Rosenkranz
Ralph Becker-Hennecke
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Insta GmbH
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Insta GmbH
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Publication of EP3239944A1 publication Critical patent/EP3239944A1/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
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/12—Electric alarm locks with contact making inside the lock or in the striking plate by movement of the bolt

Definitions

  • the present invention is based on a device designed according to the preamble of the main claim for determining the position of a magnet.
  • Such devices are generally provided to recognize the status of movable locking devices of building openings, to evaluate it and to transmit it to a downstream building device. For this purpose it is known to determine the position of a magnet which is attached to a movable closure device.
  • Such locking devices for buildings are usually designed as windows or doors and are movably mounted on a frame that can be firmly connected to the building.
  • To determine the position of the magnet it is known to use a magnetic field sensor which is attached to the frame that can be permanently connected to a building.
  • information about the current status of the locking device is important in order to take appropriate measures, such as lowering the heating temperature, influencing a radiator thermostat, issuing a warning message and to be able to carry on like this.
  • the status of whether the movable locking device (window, door) is closed, locked, swiveled open or tilted open is of importance.
  • the prior art includes a device according to WO 2015/175697 A1 relating to a locking device including a position sensor for a door.
  • the international patent specification discloses an apparatus and a method for determining the deflection of a door from its reference position. This is based on a magnetic field measurement to determine the location of the door in order to distinguish between different door positions.
  • a signaling device retrofit kit for a locking device for a window or the like is from DE 43 37 685 C1 known.
  • the locking device here comprises a locking fitting arranged in an outer rebate circumferential surface of the casement with at least one locking projection that can be displaced in the circumferential direction of the rebate surface by means of a connecting rod element between a closed position and an open position and a locking plate part arranged in an inner folded circumferential surface of the window frame with one to the inner of the window frame and in Circumferential direction open engagement recess for the locking projection.
  • the device is aimed in particular at determining the locked state of a window or the like.
  • a device corresponding to the preamble of the main claim is provided by the DE 195 18 527 A1 known.
  • This device has several magnets for status recognition, which are attached to a movable closure device of a building opening.
  • the movable locking device is mounted on a frame that is firmly connected to the building.
  • the status of the locking device is recognized by means of a magnetic field sensor which determines the position of the associated magnets.
  • the magnets in this device are designed as permanent magnets and attached to a locking element of the locking device. In order to be able to determine the status "closed”, “locked”, “swiveled open” or “tilted open”, it is necessary to use several permanent magnets with this device.
  • a device for magnetic position monitoring of two relatively movable objects in particular a window or door leaf or its locking device on the one hand and a window or door frame on the other hand, has become known.
  • at least one magnetic part attached to one object interacts with a magnetic field sensor attached to the other object, which has at least one magnetoresistive sensor element.
  • An evaluation circuit connected to the output side of the magnetic field sensor supplies an end position signal in at least one end position of the moving object and also compares a signal corresponding to the magnetic field strength measured by the magnetic sensor with a stored setpoint in a predetermined relative position of the two objects.
  • the evaluation circuit generates a warning signal if the deviation of the measured magnetic field strength from the target value is greater than a specified, permissible limit value. If the deviation lies between the target value range and the limit value, the evaluation circuit supplies a notification signal which prompts the measuring device to be checked.
  • the present invention is therefore based on the object of creating a device in a cost-effective manner, the magnetic field sensor arrangement of which makes it possible, with a particularly compact design, by determining the magnetic field orientation of a single magnet or by determining its position in space, both the status "closed “to determine the status” swiveled open “or the status” tilted up “of a movable locking device, to evaluate the determined status and to transmit it to a downstream building device.
  • one and the same magnetic field sensor arrangement of the device is capable of using a single magnets also determine the "locked" status of the movable locking device, evaluate the established status and transmit it to a downstream building device if the magnet is attached to a movable bolt part of the locking device.
  • such a device for determining the position of a single magnet 1 which is attached to a movable closure device of a building opening.
  • the movable closure device designed as a window 2
  • the movable closure device is firmly mounted on a frame 3 that can be connected to the building.
  • a single, compactly constructed magnetic field sensor arrangement 4 is provided for determining the position of the magnet 1 and, for this purpose, is attached to the frame 3 that can be firmly connected to the building.
  • the magnetic field sensor arrangement 4 has a measuring device 5 which determines the position of the magnet 1 attached to the window 2 relative to the measuring device 5 by measuring the magnetic field alignment in three planes arranged orthogonally to one another.
  • the magnetic field sensor arrangement 4 has an evaluation unit 6, which assigns the determined position of the magnet 1 to the corresponding status of the window 2.
  • the magnetic field sensor arrangement 4 has a transmission device 7 which transmits the determined status of the window 2 to a downstream - not shown for simplicity - Building equipment transmitted.
  • a downstream building facility can be designed, for example, as a heating control, monitoring system, alarm system and so on.
  • the information about the current status of the movable locking device (window 2, door) is important in order to be able to carry out appropriate measures such as lowering the heating temperature, influencing a radiator thermostat, issuing a warning message and so on.
  • the status of whether the window 2 is closed, locked, swiveled open or tilted up is important in order to be able to carry out various measures.
  • the building facility is designed as a control center of a building automation system.
  • the measuring device 5 of the magnetic field sensor arrangement 4 can also be provided to additionally detect the strength of the earth's magnetic field in order to be able to carry out a three-dimensional position determination of the magnetic field sensor device 4 in space if necessary.
  • the magnet 1 is attached to an adjustable locking part 8 of the window 2 in the present exemplary embodiment.
  • the magnet 1 is designed as a neodymium magnet and is glued onto the end face of the adjustable locking part 8 designed as a pin.
  • care is not only taken for a particularly easily sensible magnetic field alignment, in addition, the attachment of the magnet 1 by the user is particularly simple. A solution has thus been created which is also particularly suitable for retrofitting.
  • the same also applies to the magnetic field sensor arrangement 4 of the device.
  • This is also made particularly compact and can also be attached by the user in a simple manner to the frame 3 of the window 2, which can be firmly connected to a building, by gluing and / or screwing.
  • the magnetic field sensor arrangement 4 has a housing - not shown for the sake of simplicity - which - as already mentioned - in a simple manner the Allows attachment to the frame 3 and in which both the measuring device 5, the evaluation unit 6 and the transmitting device 7 are housed.
  • the circuit board Only a single electrical circuit board is provided for the arrangement and interconnection, which, in addition to a microcontroller and other electrical / electronic components necessary for the function, is provided with the measuring device 5, the evaluation unit 6 and the transmitting device 7.
  • the circuit board In order to supply the components necessary for the function with energy, the circuit board has an electrically conductive connection to a battery 9, which is also accommodated in the housing of the magnetic field sensor arrangement 4.
  • the measuring device 5 is designed as a three-dimensional Hall sensor. This senses the magnetic field alignment of the magnet 1 in three orthogonal planes. The measured values are digitized and made available to the evaluation unit 6.
  • the evaluation takes place in the evaluation unit 6 via logic in a microcontroller.
  • the measured values are provided by the measuring device 5 via a digital interface. If the measured values are within a measured value range associated with the status, the measured values are assigned to the relevant status of window 2. A regular status update and changes to the status of window 2 result in the status being sent to the control center of the building automation system.
  • the transmission of the sensed status of the measuring device 5 takes place via the transmission device 7 by radio to the control center of the building automation system.
  • the control center links programmed measures with the received status. If, for example, window 2 is opened in a room, the control center influences the heating control so that it closes the radiator valves in the relevant room, for example. Furthermore, the control center can, for example, provide information to the user. If the user leaves the building in question, for example, he can use a status query to ensure that all windows 2 or doors in the building or in a specific room are properly closed.

Description

Die vorliegende Erfindung geht von einer gemäß Oberbegriff des Hauptanspruches konzipierten Vorrichtung zur Lageermittlung eines Magneten aus.The present invention is based on a device designed according to the preamble of the main claim for determining the position of a magnet.

Derartige Vorrichtungen sind in der Regel dafür vorgesehen, den Status beweglicher Verschlusseinrichtungen von Gebäudeöffnungen zu erkennen, auszuwerten und an eine nachgelagerte Gebäudeeinrichtung zu übermitteln. Zu diesem Zweck ist es bekannt, die Lage eines Magneten zu ermitteln, welcher an einer beweglichen Verschlusseinrichtung angebracht ist. Solche Verschlusseinrichtungen von Gebäuden sind in der Regel als Fenster oder Türen ausgeführt und beweglich an einer fest mit dem Gebäude verbindbaren Zarge gelagert. Zur Ermittlung der Lage des Magneten ist es bekannt, einen Magnetfeldsensor einzusetzen, der an der fest mit einem Gebäude verbindbaren Zarge angebracht ist. Zur Auswertung in einer nachgelagerten Gebäudeeinrichtung, wie Heizungssteuerung, Überwachungsanlage, Alarmanlage und so weiter, ist die Information über den momentanen Status der Verschlusseinrichtung (Fenster, Tür) wichtig, um entsprechende Maßnahmen, wie Absenken der Heiztemperatur, Beeinflussung eines Heizkörperthermostaten, Abgabe einer Warnmeldung und so weiter durchführen zu können. Als Status ist in diesem Zusammenhang von Bedeutung, ob die bewegliche Verschlusseinrichtung (Fenster, Tür) geschlossen, verriegelt, aufgeschwenkt oder aufgekippt ist. Bei modernen Gebäudeinstallationssystemen ist es üblich, solche Informationen über den Status von beweglichen Verschlusseinrichtungen einer Steuerzentrale eines Gebäudeautomationssystems zur Verfügung zu stellen.Such devices are generally provided to recognize the status of movable locking devices of building openings, to evaluate it and to transmit it to a downstream building device. For this purpose it is known to determine the position of a magnet which is attached to a movable closure device. Such locking devices for buildings are usually designed as windows or doors and are movably mounted on a frame that can be firmly connected to the building. To determine the position of the magnet, it is known to use a magnetic field sensor which is attached to the frame that can be permanently connected to a building. For evaluation in a downstream building facility, such as heating control, monitoring system, alarm system and so on, information about the current status of the locking device (window, door) is important in order to take appropriate measures, such as lowering the heating temperature, influencing a radiator thermostat, issuing a warning message and to be able to carry on like this. In this context, the status of whether the movable locking device (window, door) is closed, locked, swiveled open or tilted open is of importance. In modern building installation systems, it is customary to provide such information about the status of movable locking devices to a control center of a building automation system.

Zum Stand der Technik zugehörig ist eine Vorrichtung gemäß WO 2015/175697 A1 , die ein Verriegelungsgerät inklusive eines Positionssensors für eine Tür betrifft. Die internationale Patentschrift offenbart eine Vorrichtung und eine Methode zur Ermittlung der Auslenkung einer Tür von ihrer Referenzposition. Hiebei wird anhand einer Magnetfeldmessung eine Ortsbestimmung der Tür vorgenommen, um so zwischen unterschiedlichen Türpositionen zu unterscheiden.The prior art includes a device according to WO 2015/175697 A1 relating to a locking device including a position sensor for a door. The international patent specification discloses an apparatus and a method for determining the deflection of a door from its reference position. This is based on a magnetic field measurement to determine the location of the door in order to distinguish between different door positions.

Darüber hinaus ist ein Meldeeinrichtungs-Nachrüstsatz für eine Verriegelungseinrichtung für ein Fenster oder dergleichen aus DE 43 37 685 C1 bekannt geworden. Die Verriegelungseinrichtung umfasst hierbei einen in einer äußeren Falzumfangsfläche des Flügelrahmens angeordneten Verriegelungsbeschlag mit wenigstens einem in Umfangsrichtung der Falzumfläche mittels eines Treibstangenelements zwischen einer Schließstellung und einer Öffnungsstellung verschiebbaren Riegelvorsprung sowie einem in einer eine inneren Falzumfangsfläche des Blendrahmens angeordneten Schließblechteil mit einer zum inneren des Blendrahmens und in Umfangsrichtung offenen Eingriffsaussparung für den Riegelvorsprung. Die Vorrichtung zielt insbesondere darauf ab, den Verriegelungszustand eines Fensters oder dergleichen zu ermitteln.In addition, a signaling device retrofit kit for a locking device for a window or the like is from DE 43 37 685 C1 known. The locking device here comprises a locking fitting arranged in an outer rebate circumferential surface of the casement with at least one locking projection that can be displaced in the circumferential direction of the rebate surface by means of a connecting rod element between a closed position and an open position and a locking plate part arranged in an inner folded circumferential surface of the window frame with one to the inner of the window frame and in Circumferential direction open engagement recess for the locking projection. The device is aimed in particular at determining the locked state of a window or the like.

Ferner ist eine dem Oberbegriff des Hauptanspruches entsprechende Vorrichtung durch die DE 195 18 527 A1 bekannt geworden. Diese Vorrichtung weist zur Statuserkennung mehrere Magneten auf, welche an einer beweglichen Verschlusseinrichtung einer Gebäudeöffnung angebracht sind. Die bewegliche Verschlusseinrichtung ist an einer fest mit dem Gebäude verbundenen Zarge gelagert. Die Statuserkennung der Verschlusseinrichtung wird bei dieser Vorrichtung mittels eines Magnetfeldsensors vorgenommen, welcher die Lage der zugeordneten Magneten ermittelt. Die Magneten sind bei dieser Vorrichtung als Dauermagneten ausgeführt sowie an einem Riegelelement der Verschlusseinrichtung angebracht. Um sowohl den Status "geschlossen", "verriegelt", "aufgeschwenkt" oder "aufgekippt" ermitteln zu können, ist es bei dieser Vorrichtung notwendig, mehrere Dauermagneten einzusetzen.Furthermore, a device corresponding to the preamble of the main claim is provided by the DE 195 18 527 A1 known. This device has several magnets for status recognition, which are attached to a movable closure device of a building opening. The movable locking device is mounted on a frame that is firmly connected to the building. In this device, the status of the locking device is recognized by means of a magnetic field sensor which determines the position of the associated magnets. The magnets in this device are designed as permanent magnets and attached to a locking element of the locking device. In order to be able to determine the status "closed", "locked", "swiveled open" or "tilted open", it is necessary to use several permanent magnets with this device.

Außerdem ist durch die WO 2015/051942 A1 eine Vorrichtung und Verfahren zum Bestimmen eines Zustandes eines zu überwachenden Objekts, wie beispielsweise einem Fenster oder einer Tür, bekannt geworden. Dabei werden die Messwerte von mehreren Sensoren, insbesondere einem Magnetometer und einem Beschleunigungssensor, fusioniert und gemeinsam ausgewertet. Zur Bestimmung eines neuen Zustands aus einer Gruppe von vorbestimmten Zuständen werden dabei nur tatsächlich mögliche Zustandsübergänge berücksichtigt. Nicht mögliche beziehungsweise nicht erlaubte Zustandsübergänge bleiben unberücksichtigt.In addition, through the WO 2015/051942 A1 an apparatus and method for determining a state of an object to be monitored, such as a window or a door, have become known. The measured values from several sensors, in particular a magnetometer and an acceleration sensor, are merged and jointly evaluated. To determine a new state from a group of predetermined states only actually possible state transitions are taken into account. State transitions that are not possible or not allowed are not taken into account.

Des Weiteren ist durch die EP 2 112 676 A2 eine Vorrichtung zur magnetischen Positionsüberwachung von zwei relativ zueinander beweglichen Objekten, insbesondere eines Fenster- oder Türflügels oder dessen Verriegelungseinrichtung einerseits und eines Fenster- beziehungsweise Türrahmens andererseits bekannt geworden. Bei dieser Vorrichtung wirkt wenigstens ein an dem einen Objekt angebrachtes Magnetteil mit einem am anderen Objekt angebrachten Magnetfeldsensor zusammen, der wenigstens ein magnetoresistives Sensorelement aufweist. Eine an den Magnetfeldsensor ausgangsseitig angeschlossene Auswerteschaltung liefert in wenigstens einer Endlage des beweglichen Objekts ein Endlagensignal und vergleicht ferner in einer vorgegebenen Relativlage der beiden Objekte zueinander ein Signal, welches der vom Magnetsensor gemessenen Magnetfeldstärke entspricht, mit einem gespeicherten Sollwert. Die Auswerteschaltung erzeugt ein Warnsignal, sofern die Abweichung der gemessenen Magnetfeldstärke vom Sollwert größer ist als ein vorgegebener, zulässiger Grenzwert. Liegt die Abweichung zwischen Sollwertbereich und Grenzwert, so liefert die Auswerteschaltung ein Hinweissignal, welches zu einer Überprüfung der Messvorrichtung auffordert.Furthermore, through the EP 2 112 676 A2 a device for magnetic position monitoring of two relatively movable objects, in particular a window or door leaf or its locking device on the one hand and a window or door frame on the other hand, has become known. In this device, at least one magnetic part attached to one object interacts with a magnetic field sensor attached to the other object, which has at least one magnetoresistive sensor element. An evaluation circuit connected to the output side of the magnetic field sensor supplies an end position signal in at least one end position of the moving object and also compares a signal corresponding to the magnetic field strength measured by the magnetic sensor with a stored setpoint in a predetermined relative position of the two objects. The evaluation circuit generates a warning signal if the deviation of the measured magnetic field strength from the target value is greater than a specified, permissible limit value. If the deviation lies between the target value range and the limit value, the evaluation circuit supplies a notification signal which prompts the measuring device to be checked.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, auf kostengünstige Art und Weise eine Vorrichtung zu schaffen, dessen Magnetfeldsensoranordnung es ermöglicht, bei besonders kompakter Bauform durch die Ermittlung der Magnetfeldausrichtung eines einzigen Magneten, beziehungsweise durch Ermittlung dessen Lage im Raum, sowohl den Status "geschlossen", den Status "aufgeschwenkt" oder den Status "aufgekippt" einer beweglichen Verschlusseinrichtung festzustellen, den festgestellten Status auszuwerten und an eine nachgelagerte Gebäudeeinrichtungen zu übertragen.The present invention is therefore based on the object of creating a device in a cost-effective manner, the magnetic field sensor arrangement of which makes it possible, with a particularly compact design, by determining the magnetic field orientation of a single magnet or by determining its position in space, both the status "closed "to determine the status" swiveled open "or the status" tilted up "of a movable locking device, to evaluate the determined status and to transmit it to a downstream building device.

Diese Aufgabe wird durch die im Hauptanspruch angegebenen Merkmale gelöst.This object is achieved by the features specified in the main claim.

Bei einer solchermaßen ausgebildeten Vorrichtung ist besonders vorteilhaft, dass ein und dieselbe Magnetfeldsensoranordnung der Vorrichtung befähigt ist, mittels eines einzigen Magneten zudem den Status "verriegelt" der beweglichen Verschlusseinrichtung festzustellen, den festgestellten Status auszuwerten und an eine nachgelagerte Gebäudeeinrichtung zu übertragen, wenn der Magnet an einem beweglichen Riegelteil der Verschlusseinrichtung angebracht ist.In a device designed in this way, it is particularly advantageous that one and the same magnetic field sensor arrangement of the device is capable of using a single magnets also determine the "locked" status of the movable locking device, evaluate the established status and transmit it to a downstream building device if the magnet is attached to a movable bolt part of the locking device.

Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Gegenstandes sind in den Unteransprüchen angegeben. Anhand eines Ausführungsbeispiels sei der erfindungsgemäße Gegenstand näher beschrieben, dabei zeigen:

Fig. 1:
prinziphaft eine als Fenster ausgeführte bewegliche Verschlusseinrichtung mit einer angebrachten Vorrichtung zur Lageermittlung eines Magneten;
Fig. 2:
prinziphaft das Schaltbild der Magnetfeldsensoranordnung der Vorrichtung;
Fig. 3:
prinziphaft den an einem beweglichen Riegelteil der Verschlusseinrichtung angebrachten Magneten.
Further advantageous configurations of the subject matter according to the invention are specified in the subclaims. The subject according to the invention will be described in more detail with the aid of an exemplary embodiment, in which:
Fig. 1:
in principle a movable closure device designed as a window with an attached device for determining the position of a magnet;
Fig. 2:
in principle the circuit diagram of the magnetic field sensor arrangement of the device;
Fig. 3:
basically the magnet attached to a movable bolt part of the locking device.

Wie aus den Zeichnungen hervorgeht, ist eine solche Vorrichtung zur Lageermittlung eines einzigen Magneten 1 vorgesehen, welcher an einer beweglichen Verschlusseinrichtung einer Gebäudeöffnung angebracht ist. Die als Fenster 2 ausgeführte bewegliche Verschlusseinrichtung ist fest an einer mit dem Gebäude verbindbaren Zarge 3 gelagert. Eine einzige, kompakt aufgebaute Magnetfeldsensoranordnung 4 ist zur Lageermittlung des Magneten 1 vorgesehen und zu diesem Zweck an der fest mit dem Gebäude verbindbaren Zarge 3 angebracht. Die Magnetfeldsensoranordnung 4 weist eine Messeinrichtung 5 auf, welche durch Messung der Magnetfeldausrichtung in drei orthogonal zueinander angeordneten Ebenen die Lage des am Fenster 2 angebrachten Magneten 1 relativ zur Messeinrichtung 5 ermittelt. Zudem weist die Magnetfeldsensoranordnung 4 eine Auswerteeinheit 6 auf, welche die ermittelte Lage des Magneten 1 dem damit korrespondierenden Status des Fensters 2 zuordnet. Außerdem weist die Magnetfeldsensoranordnung 4 eine Sendeeinrichtung 7 auf, welche den ermittelten Status des Fensters 2 an eine nachgelagerte - der Einfachheit nicht dargestellten - Gebäudeeinrichtung übermittelt. Eine solche nachgelagerte Gebäudeeinrichtung kann zum Beispiel als Heizungssteuerung, Überwachungsanlage, Alarmanlage und so weiter ausgeführt sein. Für solche Gebäudeeinrichtungen ist die Information über den momentanen Status der beweglichen Verschlusseinrichtung (Fenster 2, Tür) wichtig, um entsprechende Maßnahmen, wie Absenken der Heiztemperatur, Beeinflussung eines Heizkörperthermostaten, Abgabe einer Warnmeldung und so weiter durchführen zu können. Als Status ist beim vorliegenden Ausführungsbeispiel von Bedeutung, ob das Fenster 2 geschlossen, verriegelt, aufgeschwenkt oder aufgekippt ist, um verschiedene Maßnahmen durchführen zu können. Beim vorliegenden Ausführungsbeispiel ist die Gebäudeeinrichtung als Steuerzentrale eines Gebäudeautomationssystems ausgeführt.As can be seen from the drawings, such a device is provided for determining the position of a single magnet 1 which is attached to a movable closure device of a building opening. The movable closure device, designed as a window 2, is firmly mounted on a frame 3 that can be connected to the building. A single, compactly constructed magnetic field sensor arrangement 4 is provided for determining the position of the magnet 1 and, for this purpose, is attached to the frame 3 that can be firmly connected to the building. The magnetic field sensor arrangement 4 has a measuring device 5 which determines the position of the magnet 1 attached to the window 2 relative to the measuring device 5 by measuring the magnetic field alignment in three planes arranged orthogonally to one another. In addition, the magnetic field sensor arrangement 4 has an evaluation unit 6, which assigns the determined position of the magnet 1 to the corresponding status of the window 2. In addition, the magnetic field sensor arrangement 4 has a transmission device 7 which transmits the determined status of the window 2 to a downstream - not shown for simplicity - Building equipment transmitted. Such a downstream building facility can be designed, for example, as a heating control, monitoring system, alarm system and so on. For such building facilities, the information about the current status of the movable locking device (window 2, door) is important in order to be able to carry out appropriate measures such as lowering the heating temperature, influencing a radiator thermostat, issuing a warning message and so on. In the present exemplary embodiment, the status of whether the window 2 is closed, locked, swiveled open or tilted up is important in order to be able to carry out various measures. In the present embodiment, the building facility is designed as a control center of a building automation system.

Gegebenenfalls kann die Messeinrichtung 5 der Magnetfeldsensoranordnung 4 auch dazu vorgesehen sein, zusätzlich die Stärke des Erdmagnetfeldes zu erfassen, um bei Bedarf eine dreidimensionale Lageermittlung der Magnetfeldsensoreinrichtung 4 im Raum durchzuführen zu können.If necessary, the measuring device 5 of the magnetic field sensor arrangement 4 can also be provided to additionally detect the strength of the earth's magnetic field in order to be able to carry out a three-dimensional position determination of the magnetic field sensor device 4 in space if necessary.

Wie des Weiteren insbesondere aus Figur 3 hervorgeht, ist der Magnet 1 beim vorliegenden Ausführungsbeispiel an einem verstellbaren Riegelteil 8 des Fensters 2 angebracht. Im vorliegenden Fall ist der Magnet 1 als Neodym-Magnet ausgeführt und auf die Stirnseite des als Zapfens ausgeführten verstellbaren Riegelteils 8 aufgeklebt. Bei besonders kompakter Bauform des Magneten 1 ist somit nicht nur für eine besonders gut sensierbare Magnetfeldausrichtung Sorge getragen, zudem ist auch die Anbringung des Magneten 1 durch den Benutzer besonders einfach. Es ist somit eine Lösung geschaffen, welche sich auch besonders gut für eine Nachrüstung eignet.How further in particular from Figure 3 As can be seen, the magnet 1 is attached to an adjustable locking part 8 of the window 2 in the present exemplary embodiment. In the present case, the magnet 1 is designed as a neodymium magnet and is glued onto the end face of the adjustable locking part 8 designed as a pin. In the case of a particularly compact design of the magnet 1, care is not only taken for a particularly easily sensible magnetic field alignment, in addition, the attachment of the magnet 1 by the user is particularly simple. A solution has thus been created which is also particularly suitable for retrofitting.

Wie insbesondere aus den Figuren 1 und 2 hervorgeht, gilt gleiches auch für die Magnetfeldsensoranordnung 4 der Vorrichtung. Diese ist ebenfalls besonders kompakt ausgeführt und lässt sich ebenfalls durch eine Verklebung und/oder Verschraubung auf einfache Art und Weise an der fest mit einem Gebäude verbindbaren Zarge 3 des Fensters 2 durch den Benutzer anbringen. Die Magnetfeldsensoranordnung 4 weist ein - der Einfachheit halber nicht dargestelltes - Gehäuse auf, welches - wie bereits erwähnt - auf einfache Art und Weise die Befestigung an der Zarge 3 ermöglicht und in welchem sowohl die Messeinrichtung 5, die Auswerteeinheit 6 und die Sendeeinrichtung 7 untergebracht sind. Zur Anordnung und Verschaltung ist lediglich eine einzige elektrische Leiterplatte vorgesehen, die neben einem Mikrokontroller und weiteren zur Funktion notwendigen elektrischen/elektronischen Bauteilen mit der Messeinrichtung 5, mit der Auswerteeinheit 6 und mit der Sendeeinrichtung 7 versehen ist. Zur Energieversorgung der zur Funktion notwendigen Bauteile steht die Leiterplatte mit einer Batterie 9 elektrisch leitend in Verbindung, welche ebenfalls im Gehäuse der Magnetfeldsensoranordnung 4 untergebracht ist.As in particular from the Figures 1 and 2 As can be seen, the same also applies to the magnetic field sensor arrangement 4 of the device. This is also made particularly compact and can also be attached by the user in a simple manner to the frame 3 of the window 2, which can be firmly connected to a building, by gluing and / or screwing. The magnetic field sensor arrangement 4 has a housing - not shown for the sake of simplicity - which - as already mentioned - in a simple manner the Allows attachment to the frame 3 and in which both the measuring device 5, the evaluation unit 6 and the transmitting device 7 are housed. Only a single electrical circuit board is provided for the arrangement and interconnection, which, in addition to a microcontroller and other electrical / electronic components necessary for the function, is provided with the measuring device 5, the evaluation unit 6 and the transmitting device 7. In order to supply the components necessary for the function with energy, the circuit board has an electrically conductive connection to a battery 9, which is also accommodated in the housing of the magnetic field sensor arrangement 4.

Die Messeinrichtung 5 ist beim vorliegenden Ausführungsbeispiel als dreidimensionaler Hall-Sensor ausgeführt. Dieser sensiert die Magnetfeldausrichtung des Magneten 1 in drei orthogonal zueinander stehenden Ebenen. Die Messwerte werden digitalisiert und der Auswerteeinheit 6 bereitgestellt.In the present exemplary embodiment, the measuring device 5 is designed as a three-dimensional Hall sensor. This senses the magnetic field alignment of the magnet 1 in three orthogonal planes. The measured values are digitized and made available to the evaluation unit 6.

Die Auswertung erfolgt in der Auswerteeinheit 6 über eine Logik in einem Mikrokontroller. Die Messwerte werden über ein digitales Interface von der Messeinrichtung 5 bereitgestellt. Liegen die Messwerte innerhalb eines zum Status zugehörigen Messwertebereichs, erfolgt die Zuordnung der Messwerte zu dem betreffenden Status des Fensters 2. Ein regelmäßiges Statusupdate und Änderungen des Status des Fensters 2 führen zum Senden des ermittelten Status an die Steuerzentrale des Gebäudeautomationssystems.The evaluation takes place in the evaluation unit 6 via logic in a microcontroller. The measured values are provided by the measuring device 5 via a digital interface. If the measured values are within a measured value range associated with the status, the measured values are assigned to the relevant status of window 2. A regular status update and changes to the status of window 2 result in the status being sent to the control center of the building automation system.

Das Senden des sensierten Status der Messeinrichtung 5 erfolgt über die Sendeeinrichtung 7 mittels Funk an die Steuerzentrale des Gebäudeautomationssystems. Die Steuerzentrale verknüpft mit dem empfangenen Status programmierte Maßnahmen. Wird zum Beispiel das Fenster 2 in einem Raum geöffnet, so beeinflusst die Steuerzentrale die Heizungssteuerung, damit diese zum Beispiel in dem betreffenden Raum die Ventile der Heizkörper schließt. Des Weiteren kann die Steuerzentrale für den Benutzer zum Beispiel Informationen bereitstellen. Wird das betreffende Gebäude zum Beispiel vom Benutzer verlassen, kann dieser über eine Statusabfrage sicherstellen, ob alle Fenster 2 beziehungsweise Türen des Gebäudes beziehungsweise eines bestimmten Raumes ordnungsgemäß verschlossen sind.The transmission of the sensed status of the measuring device 5 takes place via the transmission device 7 by radio to the control center of the building automation system. The control center links programmed measures with the received status. If, for example, window 2 is opened in a room, the control center influences the heating control so that it closes the radiator valves in the relevant room, for example. Furthermore, the control center can, for example, provide information to the user. If the user leaves the building in question, for example, he can use a status query to ensure that all windows 2 or doors in the building or in a specific room are properly closed.

BezugszeichenlisteList of reference symbols

11
Magnetmagnet
22
Fensterwindow
33
Zargeframe
44th
MagnetfeldsensoranordnungMagnetic field sensor arrangement
55
MesseinrichtungMeasuring device
66th
AuswerteeinheitEvaluation unit
77th
SendeeinrichtungSending facility
88th
RiegelteilLatch part
99
Batteriebattery

Claims (9)

  1. An apparatus for detecting the position of a magnet (1), the apparatus comprising a magnet (1) attached to a movable closure device of a building opening for detecting the status of the movable closure device, which movable closure device is mounted on a frame (3) which can be firmly connected to a building and wherein the position determining device comprises a magnetic field sensor arrangement (4) mounted on the frame (3) which can be firmly connected to a building, wherein the magnetic field sensor arrangement (4) comprises an evaluation unit (6), which evaluation unit (6) is set up to assign the determined position of the magnet (1) to the status of the movable closure device corresponding thereto, and a transmitting device (7) for transmitting the status of the closure device to a downstream building device and a measuring unit (5), wherein the position determining device comprises only a single magnet (1) and wherein the measuring unit (5) is adapted to determine the position of the magnet (1) in space by measuring the magnetic field alignment in three planes orthogonal to one another of the magnet (1) mounted on the movable closure device relative to the measuring device (5) and, if the measured values lie within a range of measured values associated with a status, to assign the measured values to the relevant status of the movable closure device, characterised by the fact that the possible statuses are locked, closed, open and tilted.
  2. Apparatus in accordance with Claim 1, characterized by the fact that the magnetic field sensor arrangement (4) has a measuring device (5) which determines the position of the magnetic field sensor arrangement (4) three-dimensionally in space by measuring the earth's magnetic field strength.
  3. Apparatus in accordance with any of Claims 1 or 2, characterized by the fact that the magnet (1) is designed as a permanent magnet.
  4. Apparatus in accordance with any of Claims 1 to 3, characterized by the fact that the magnet (1) is designed as a neodymium magnet.
  5. Apparatus in accordance with any of Claims 1 to 4 characterized by the fact that the movable closure device is designed as a window sash which is movably mounted on the associated frame (3) which can be firmly connected to a building.
  6. Apparatus in accordance with any of Claims 1 to 4, characterized by the fact that the movable closure device is designed as a door leaf which is movably mounted on the associated frame (3) which can be firmly connected to a building.
  7. Apparatus in accordance with any of Claims 1 to 6, characterized by the fact that the magnet (1) is attached to an adjustable latching part (8) of the movable closure device.
  8. Apparatus in accordance with any of Claims 1 to 6, characterized by the fact that the magnet (1) is attached to an actuating part of the movable closure device.
  9. Method for determining the position of a magnet (1) which is attached to a movable closure device of a building opening, wherein the movable closure device is mounted on a frame (3) which is firmly connected to the building, and wherein the position is determined by means of a magnetic field sensor arrangement (4) attached to the fixed frame (3), wherein the magnetic field sensor arrangement (4) has an evaluation unit (6) which assigns the determined position of the magnet (1) to the status of the movable closure device corresponding thereto, and the magnetic field sensor arrangement (4) has a transmitting device (7) by which the status of the closure device is transmitted to a downstream building device, and the magnetic field sensor arrangement (4) has a measuring unit (5), characterized by the fact that the position of the magnet (1) in space is determined by measuring the magnetic field alignment in three planes orthogonal to one another of the single magnet (1) mounted on the movable closure device relative to the measuring unit (5), wherein if the measured values lie within a range of measured values associated with the status of the movable closure device, an assignment of the measured values to the relevant status of the movable closure device is carried out, whereby the possible statuses of the movable closure device are locked, closed, open and tilted.
EP17155551.9A 2016-04-28 2017-02-10 Device for detecting the position of a magnet Active EP3239944B1 (en)

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DE102016107868.9A DE102016107868B3 (en) 2016-04-28 2016-04-28 Device for detecting the position of a magnet

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DE102017005061B4 (en) 2017-05-26 2021-08-19 Efp Vertriebs- Und Servicegesellschaft Mbh Evaluation logic for sensors of opening states of windows and doors

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DE3538841A1 (en) * 1985-10-31 1987-05-21 Permag Gmbh Safety contact device operated by a magnetic field
DE4337685C2 (en) * 1993-11-04 2003-06-26 Winkhaus Fa August Detector retrofit kit for a locking device for a window or the like
DE19518527A1 (en) * 1995-05-19 1996-11-21 Winkhaus Fa August Monitorable locking arrangement for a window or a door or the like
DE102006017654B4 (en) * 2006-04-12 2008-09-25 Abb Ag Radio adapter with magnet-operated reed contacts for a window or door handle
DE202010010852U1 (en) * 2010-07-30 2011-11-15 Burg-Wächter Kg closure device
DE102012025474B4 (en) * 2012-12-29 2015-01-15 Klaus Meister Door and latch state detection device
WO2015175697A1 (en) * 2014-05-13 2015-11-19 Schlage Lock Company Llc Lock device having position sensor

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WO2015051942A1 (en) * 2013-10-07 2015-04-16 Robert Bosch Gmbh Device and method for determining a state of an object which is to be monitored

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ES2860950T3 (en) 2021-10-05
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